diff options
| author | glasseyes <dglassey@gmail.com> | 2018-11-07 09:18:12 +0700 |
|---|---|---|
| committer | glasseyes <dglassey@gmail.com> | 2018-11-07 09:18:12 +0700 |
| commit | 44c56d5ae2bb1e517efbee1f7a07594a90a6ff64 (patch) | |
| tree | 02ce37145e1d2a7153c679880b8ed1ec146d4095 | |
| parent | 1d0ff54794b5edea7cdf1d2d66710a0fa885bcc5 (diff) | |
New upstream version 1.8.1+dfsg
32 files changed, 0 insertions, 23348 deletions
diff --git a/bindings/gsoap/include/stdsoap.h b/bindings/gsoap/include/stdsoap.h deleted file mode 100644 index 462483a..0000000 --- a/bindings/gsoap/include/stdsoap.h +++ /dev/null @@ -1,493 +0,0 @@ -/* stdsoap.h - - Copyright (C) 2001 Robert A. van Engelen, Florida State University. - All rights reserved. -*/ - -#include <stdio.h> -#include <stdlib.h> -#include <errno.h> -#include <string.h> -#include <ctype.h> -#include <limits.h> -#include <sys/types.h> -#ifndef WIN32 -#include <netinet/tcp.h> /* for TCP_NODELAY */ -#include <arpa/inet.h> -#endif - -#ifdef WITH_OPENSSL -#include <openssl/ssl.h> -#include <openssl/err.h> -#ifndef ALLOW_OLD_VERSIONS -#if (OPENSSL_VERSION_NUMBER < 0x00905100L) -#error "Must use OpenSSL 0.9.6 or later" -#endif -#endif -#endif - -#include <math.h> /* for isnan(): remove if NAN and INF support is not required */ -#include <time.h> /* for time_t (xsd:dateTime) support, remove if not required */ - -#ifndef _MATH_H -#define isnan(_) (0) -#else -extern struct soap_double_nan { int n1, n2; } soap_double_nan; -#endif - -#ifndef STDSOAP -#define STDSOAP - -#ifndef WIN32 -#define LONG64 long long -#define ULONG64 unsigned long long -#endif - -/* #define DEBUG */ /* Uncomment to debug sending (in file SENT.log) receiving (in file RECV.log) and messages (in file TEST.log) */ - -#define SOAP_BUFLEN 8192 /* buffer length for socket packets */ -#define SOAP_MAXLEN 256 /* maximum length of buffer to hold XML number representations */ -#define SOAP_PTRHASH 1024 /* size of pointer analysis hash table (must be power of 2) */ -#define SOAP_IDHASH 16 /* size of hash table for element id's */ -#define SOAP_BLKLEN 256 /* size of blocks to collect long strings */ -#define SOAP_TAGLEN 256 /* maximum length of XML tag/element names + 1 */ - -typedef long wchar; /* for compatibility */ - -#ifndef FLT_NAN -#ifdef _MATH_H -#define FLT_NAN (*(float*)&soap_double_nan) -#else -#define FLT_NAN (0.0) -#endif -#endif -#ifndef FLT_PINFTY -#ifdef HUGE_VAL -#define FLT_PINFTY (float)HUGE_VAL -#else -#ifdef FLT_MAX -#define FLT_PINFTY FLT_MAX -#else -#ifdef FLOAT_MAX -#define FLT_PINFTY FLOAT_MAX -#else -#define FLT_PINFTY (3.40282347e+38) -#endif -#endif -#endif -#endif -#ifndef FLT_NINFTY -#define FLT_NINFTY (-FLT_PINFTY) -#endif - -#ifndef DBL_NAN -#ifdef _MATH_H -#define DBL_NAN (*(double*)&soap_double_nan) -#else -#define DBL_NAN (0.0) -#endif -#endif -#ifndef DBL_PINFTY -#ifdef HUGE_VAL -#define DBL_PINFTY (double)HUGE_VAL -#else -#ifdef DBL_MAX -#define DBL_PINFTY DBL_MAX -#else -#ifdef DOUBLE_MAX -#define DBL_PINFTY DOUBLE_MAX -#else -#define DBL_PINFTY (1.7976931348623157e+308) -#endif -#endif -#endif -#endif -#ifndef DBL_NINFTY -#define DBL_NINFTY (-DBL_PINFTY) -#endif - -extern int (*soap_fpost)(const char*, const char*, const char*, const char*, size_t); -extern int (*soap_fresponse)(int, size_t); -extern int (*soap_fparse)(); -extern int (*soap_fopen)(const char*, const char*, int); -extern int (*soap_fclose)(); -extern int (*soap_fsend)(const char*, size_t); -extern size_t (*soap_frecv)(char*, size_t); -extern int (*soap_fignore)(const char*); - -extern const char *soap_float_format; /* points to user-definable format string */ -extern const char *soap_double_format; /* points to user-definable format string */ - -extern const char *soap_http_version; /* default = "1.0" */ -extern const char *soap_encodingStyle; /* default = NULL which means that SOAP encoding is used for marshalling */ -extern const char *soap_defaultNamespace; /* default = NULL which means that no default namespace is used */ -extern int soap_disable_href; /* when !=0, disables hrefs so objects are duplicated on the output */ -extern int soap_enable_embedding; /* when !=0, enable hrefs within embedded elements */ -extern int soap_enable_null; /* when !=0, always sends null elements */ -extern int soap_enable_utf_string; /* when !=0, assume strings are UTF8/16 encoded and just emit them */ -extern int soap_disable_request_count; /* when !=0, do not include HTTP Content-Length in request */ -extern int soap_disable_response_count; /* when !=0, do not include HTTP Content-Length in service response (normally calculated by the Web server in case CGI is used so disabling saves time) */ -extern int soap_enable_array_overflow; /* when !=0, allows ignoring remaining elements that do not fit in a fixed-size array */ -extern int soap_keep_alive; /* when !=0, set SO_KEEPALIVE socket and do not close sockets, unless new host/port is accessed */ - -extern const char *soap_proxy_host; -extern int soap_proxy_port; - -#ifdef WITH_OPENSSL -extern SSL_CTX *soap_ssl_ctx; -extern BIO *soap_bio; -extern SSL *soap_ssl; -extern int soap_require_server_auth; -extern const char *soap_keyfile; -extern const char *soap_password; -extern const char *soap_dhfile; -extern const char *soap_cafile; -#endif - -#ifdef WIN32 -#include <io.h> -#include <winsock.h> -#else -#include <sys/socket.h> -#include <netdb.h> -#include <netinet/in.h> -#include <unistd.h> -#define closesocket(n) close(n) -#endif - -int soap_serve(); - -extern void soap_serializeheader(); -extern void soap_putheader(); -extern int soap_getheader(); -extern void soap_serializefault(); -extern void soap_putfault(); -extern int soap_getfault(); -extern void soap_putindependent(); -extern int soap_getindependent(); - -int soap_bind(const char *hostname, int port, int backlog); -int soap_accept(); -int soap_ssl_accept(); - -struct Namespace {const char *id, *ns, *in;}; -extern struct Namespace namespaces[]; - -static FILE * fdebug; - -struct soap_entry -{ int id; - void *entry; - int type; - short marked1; - short marked2; - struct soap_entry *next; -}; - -extern char soap_tag[SOAP_TAGLEN]; /* used by soap_element_begin_in */ -extern char soap_id[SOAP_TAGLEN]; /* set by soap_element_begin_in */ -extern char soap_href[SOAP_TAGLEN]; /* set by soap_element_begin_in */ -extern char soap_type[SOAP_TAGLEN]; -extern char soap_arrayType[SOAP_TAGLEN]; -extern char soap_arraySize[SOAP_TAGLEN]; -extern char soap_xmlns_name[SOAP_TAGLEN]; -extern char soap_xmlns_value[SOAP_TAGLEN]; -extern char soap_offset[SOAP_TAGLEN]; /* ditto */ -extern int soap_position; /* ditto */ -extern int soap_positions[32]; /* ditto */ -extern int soap_null; /* ditto */ -extern int soap_counting; -extern int soap_level; -extern int soap_is_in_header; - -/* Defining the std soap error codes */ - -#define SOAP_OK 0 -#define SOAP_CLI_FAULT 1 -#define SOAP_SVR_FAULT 2 -#define SOAP_TAG_MISMATCH 3 -#define SOAP_TYPE_MISMATCH 4 -#define SOAP_SYNTAX_ERROR 5 -#define SOAP_NO_TAG 6 -#define SOAP_IOB 7 -#define SOAP_MUSTUNDERSTAND 8 -#define SOAP_NAMESPACE 9 -#define SOAP_OBJ_MISMATCH 10 -#define SOAP_FATAL_ERROR 11 -#define SOAP_FAULT 12 -#define SOAP_NO_METHOD 13 -#define SOAP_EOM 14 -#define SOAP_NULL 15 -#define SOAP_MULTI_ID 16 -#define SOAP_MISSING_ID 17 -#define SOAP_HREF 18 -#define SOAP_TCP_ERROR 19 -#define SOAP_HTTP_ERROR 20 -#define SOAP_SSL_ERROR 21 -#define SOAP_EOF EOF - -extern int soap_error ; - -/* DEBUG macros */ - -#ifdef DEBUG -#define DBGLOG(DBGFILE, DBGCMD) \ -{\ - fdebug = fopen(#DBGFILE".log", "a");\ - DBGCMD;\ - fclose(fdebug);\ -} -#else -#define DBGLOG(DBGFILE, DBGCMD) -#endif - -struct soap_class -{ void *ptr; - int type; - int size; - struct soap_class *next; -}; - -extern struct soap_class *soap_class_chain; - -struct soap_stack -{ struct soap_stack *next; - char *id; - int i; - int level; -}; - -/* Hash table (temporarily replaced by array indexing) */ - -extern struct soap_entry *soap_ptr[SOAP_PTRHASH]; - -/*int sock;*/ -extern int soap_socket; -extern int soap_recvfd; -extern int soap_sendfd; -extern int soap_buffering; -extern unsigned long soap_ip; /* IP address of connecting party after soap_accept() */ - -/* send routine */ -int soap_send(const char *buf); - -int soap_send_hex(int); -int soap_send_base64(const unsigned char *, size_t); - -int soap_gethex(); -unsigned char *soap_getbase64(int *, int); - -extern int errmode ; - -int soap_pointer_lookup(const void *p, int t,struct soap_entry **np1); -int soap_array_pointer_lookup(const void *p, int n, int t, struct soap_entry **np1); -int soap_pointer_lookup_id(void *p, int t,struct soap_entry **np1); -int soap_pointer_enter(const void *p, int t,struct soap_entry **np1); -int soap_array_pointer_enter(const void *p, int t, struct soap_entry **np1); -void soap_pointer_dump(); -void soap_begin_count(); -void soap_begin_send(); -int soap_end_send(); - -void soap_embedded(const void *p, int t); -int soap_reference(const void *p, int t); -int soap_array_reference(const void *p, int n, int t); -int soap_embedded_id(int id, const void *p, int t); -int soap_is_embedded(struct soap_entry *); -int soap_is_single(struct soap_entry *); -int soap_is_multi(struct soap_entry *); -void soap_set_embedded(struct soap_entry *); - -int soap_begin_recv(); -int soap_end_recv(); -int soap_getline(char *, int); - -void soap_send_namespaces(); - -#ifdef WIN32 -#define atoll atoi -#else -extern void itoa(int, char*); -#endif - -/* The hash table to hold IDs needs entries of the form: */ -struct soap_hash_entry -{ int type; - size_t size; - void *link; - void *copy; - void *ptr; - int level; - struct soap_hash_entry *next; - char s[4]; -}; - -extern struct soap_hash_entry *soap_hash[SOAP_IDHASH]; - -extern int soap_alloced ; /* keep this info so we know that object must be init'ed */ -extern void *soap_malloc_chain ; - -void * soap_malloc(size_t n); -void soap_dealloc(void *p); - -int soap_lookup_type(const char *id); - -void * soap_id_lookup(const char *id, void **p, int t, size_t n, int k); - -void * soap_id_forward(const char *id, void *p, int t, size_t n); - -void * soap_id_enter(const char *id, void *p, int t, size_t n, int k); -void * soap_class_id_enter(const char *id, void *p, int t, const char *type); - -extern int soap_size(const int *, int); -extern int soap_getoffsets(const char *, const int *, int *, int); -extern int soap_getsize(const char *, const char *, int *); -extern int soap_getsizes(const char *, int *, int); -extern int soap_getposition(const char *, int *); -extern char * soap_putsize(const char *, int); -extern char * soap_putsizesoffsets(const char *, const int *, const int *, int); -extern char * soap_putsizes(const char *, const int *, int); -extern char * soap_putoffset(int); -extern char * soap_putoffsets(const int *, int); -extern char * soap_putposition(); - -extern int soap_peeked ; -extern int soap_body; - -/* Support routines (library) */ -int soap_ignore_element(); - -int soap_closesock(); - -void soap_init(); -void soap_begin(); - -int soap_match_tag(const char*, const char *); - -int soap_match_array(const char*); - -void soap_end(); -void soap_free(); -void soap_destroy(); - -void soap_element_begin_out(const char *tag, int id, const char *type); -void soap_array_begin_out(const char *tag, int id, const char *type, const char *offset); - -void soap_element_end_out(const char *tag); - -void soap_element_ref(const char *tag, int id, int href); - -void soap_element_null(const char *tag, int id, const char *type); - -int soap_element_begin_in(const char *tag); - -int soap_element_end_in(const char *tag); - -int soap_peek_element(); -void soap_revert(); - -int soap_ignore_element(); - -void soap_convert_string_out(const char *s); - -int soap_match_namespace(const char*, const char*, int, int); - -void soap_pop_namespace(); -int soap_push_namespace(const char *,const char *); - -extern int soap_block_size; -extern int soap_new_block(); -extern void *soap_push_block(size_t); -extern void soap_pop_block(); -extern void soap_store_block(char *); - -void *soap_instantiate(int t, const char *); -void soap_delete(void *, int, int); - -void soap_outint(const char *tag, int id, const int *p, const char *, int); -int * soap_inint(const char *tag, int *p, const char *, int); - -void soap_outbyte(const char *tag, int id, const char *p, const char *, int); -char * soap_inbyte(const char *tag, char *p, const char *, int); - -void soap_outlong(const char *tag, int id, const long *p, const char *, int); -long * soap_inlong(const char *tag, long *p, const char *, int); - -void soap_outLONG64(const char *tag, int id, const LONG64 *p, const char *, int); -LONG64 * soap_inLONG64(const char *tag, LONG64 *p, const char *, int); - -void soap_outshort(const char *tag, int id, const short *p, const char *, int); -short * soap_inshort(const char *tag, short *p, const char *, int); - -void soap_outfloat(const char *tag, int id, const float *p, const char *, int); -float * soap_infloat(const char *tag, float *p, const char *, int); - -void soap_outdouble(const char *tag, int id, const double *p, const char *, int); -double * soap_indouble(const char *tag, double *p, const char *, int); - -void soap_outunsignedByte(const char *tag, int id, const unsigned char *p, const char *, int); -unsigned char * soap_inunsignedByte(const char *tag, unsigned char *p, const char *, int); - -void soap_outunsignedShort(const char *tag, int id, const unsigned short *p, const char *, int); -unsigned short * soap_inunsignedShort(const char *tag, unsigned short *p, const char *, int); - -void soap_outunsignedInt(const char *tag, int id, const unsigned int *p, const char *, int); -unsigned int * soap_inunsignedInt(const char *tag, unsigned int *p, const char *, int); - -void soap_outunsignedLong(const char *tag, int id, const unsigned long *p, const char *, int); -unsigned long * soap_inunsignedLong(const char *tag, unsigned long *p, const char *, int); - -void soap_outunsignedLONG64(const char *tag, int id, const ULONG64 *p, const char *, int); -ULONG64 * soap_inunsignedLONG64(const char *tag, ULONG64 *p, const char *, int); - -void soap_outstring(const char *tag, int id, char *const*p, const char *, int); -char ** soap_instring(const char *tag, char **p, const char *, int); - -void soap_outwstring(const char *tag, int id, wchar_t *const*p, const char *, int); -wchar_t **soap_inwstring(const char *tag, wchar_t **p, const char *, int); - -void soap_outliteral(const char *tag, char *const*p); -char **soap_inliteral(const char *tag, char **p); - -void soap_outwliteral(const char *tag, wchar_t *const*p); -wchar_t **soap_inwliteral(const char *tag, wchar_t **p); - -#ifdef _TIME_H -void soap_outdateTime(const char *tag, int id, const time_t *p, const char *, int); -time_t *soap_indateTime(const char *tag, time_t *p, const char *, int); -#endif - -char *soap_value(); - -wchar soap_skip(); - -/* 1. generate the prototypes and encode all types (base types are defined above) */ - -void soap_envelope_begin_out(); -void soap_envelope_end_out(); - -int soap_envelope_begin_in(); -int soap_envelope_end_in(); - -void soap_body_begin_out(); -void soap_body_end_out(); - -int soap_body_begin_in(); -int soap_body_end_in(); - -int soap_recv_header(); - -int soap_connect(const char *URL, const char *action); - -int soap_response(); - -/* Methods dealing with the fault struct*/ - -int soap_send_fault(); - -int soap_recv_fault(); - -extern void soap_print_fault(FILE*); -extern void soap_print_fault_location(FILE*); - -#endif diff --git a/include/internal/regex/regex.h b/include/internal/regex/regex.h deleted file mode 100644 index 79d6586..0000000 --- a/include/internal/regex/regex.h +++ /dev/null @@ -1,561 +0,0 @@ -/* Definitions for data structures and routines for the regular - expression library, version 0.12. - Copyright (C) 1985,1989-1993,1995-1998, 2000 Free Software Foundation, Inc. - This file is part of the GNU C Library. Its master source is NOT part of - the C library, however. The master source lives in /gd/gnu/lib. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#ifndef _REGEX_H -#define _REGEX_H 1 - -/* Allow the use in C++ code. */ -#ifdef __cplusplus -extern "C" { -#endif - -/* POSIX says that <sys/types.h> must be included (by the caller) before - <regex.h>. */ - -#if !defined _POSIX_C_SOURCE && !defined _POSIX_SOURCE && defined VMS -/* VMS doesn't have `size_t' in <sys/types.h>, even though POSIX says it - should be there. */ -# include <stddef.h> -#endif - -/* The following two types have to be signed and unsigned integer type - wide enough to hold a value of a pointer. For most ANSI compilers - ptrdiff_t and size_t should be likely OK. Still size of these two - types is 2 for Microsoft C. Ugh... */ -typedef long int s_reg_t; -typedef unsigned long int active_reg_t; - -/* The following bits are used to determine the regexp syntax we - recognize. The set/not-set meanings are chosen so that Emacs syntax - remains the value 0. The bits are given in alphabetical order, and - the definitions shifted by one from the previous bit; thus, when we - add or remove a bit, only one other definition need change. */ -typedef unsigned long int reg_syntax_t; - -/* If this bit is not set, then \ inside a bracket expression is literal. - If set, then such a \ quotes the following character. */ -#define RE_BACKSLASH_ESCAPE_IN_LISTS ((unsigned long int) 1) - -/* If this bit is not set, then + and ? are operators, and \+ and \? are - literals. - If set, then \+ and \? are operators and + and ? are literals. */ -#define RE_BK_PLUS_QM (RE_BACKSLASH_ESCAPE_IN_LISTS << 1) - -/* If this bit is set, then character classes are supported. They are: - [:alpha:], [:upper:], [:lower:], [:digit:], [:alnum:], [:xdigit:], - [:space:], [:print:], [:punct:], [:graph:], and [:cntrl:]. - If not set, then character classes are not supported. */ -#define RE_CHAR_CLASSES (RE_BK_PLUS_QM << 1) - -/* If this bit is set, then ^ and $ are always anchors (outside bracket - expressions, of course). - If this bit is not set, then it depends: - ^ is an anchor if it is at the beginning of a regular - expression or after an open-group or an alternation operator; - $ is an anchor if it is at the end of a regular expression, or - before a close-group or an alternation operator. - - This bit could be (re)combined with RE_CONTEXT_INDEP_OPS, because - POSIX draft 11.2 says that * etc. in leading positions is undefined. - We already implemented a previous draft which made those constructs - invalid, though, so we haven't changed the code back. */ -#define RE_CONTEXT_INDEP_ANCHORS (RE_CHAR_CLASSES << 1) - -/* If this bit is set, then special characters are always special - regardless of where they are in the pattern. - If this bit is not set, then special characters are special only in - some contexts; otherwise they are ordinary. Specifically, - * + ? and intervals are only special when not after the beginning, - open-group, or alternation operator. */ -#define RE_CONTEXT_INDEP_OPS (RE_CONTEXT_INDEP_ANCHORS << 1) - -/* If this bit is set, then *, +, ?, and { cannot be first in an re or - immediately after an alternation or begin-group operator. */ -#define RE_CONTEXT_INVALID_OPS (RE_CONTEXT_INDEP_OPS << 1) - -/* If this bit is set, then . matches newline. - If not set, then it doesn't. */ -#define RE_DOT_NEWLINE (RE_CONTEXT_INVALID_OPS << 1) - -/* If this bit is set, then . doesn't match NUL. - If not set, then it does. */ -#define RE_DOT_NOT_NULL (RE_DOT_NEWLINE << 1) - -/* If this bit is set, nonmatching lists [^...] do not match newline. - If not set, they do. */ -#define RE_HAT_LISTS_NOT_NEWLINE (RE_DOT_NOT_NULL << 1) - -/* If this bit is set, either \{...\} or {...} defines an - interval, depending on RE_NO_BK_BRACES. - If not set, \{, \}, {, and } are literals. */ -#define RE_INTERVALS (RE_HAT_LISTS_NOT_NEWLINE << 1) - -/* If this bit is set, +, ? and | aren't recognized as operators. - If not set, they are. */ -#define RE_LIMITED_OPS (RE_INTERVALS << 1) - -/* If this bit is set, newline is an alternation operator. - If not set, newline is literal. */ -#define RE_NEWLINE_ALT (RE_LIMITED_OPS << 1) - -/* If this bit is set, then `{...}' defines an interval, and \{ and \} - are literals. - If not set, then `\{...\}' defines an interval. */ -#define RE_NO_BK_BRACES (RE_NEWLINE_ALT << 1) - -/* If this bit is set, (...) defines a group, and \( and \) are literals. - If not set, \(...\) defines a group, and ( and ) are literals. */ -#define RE_NO_BK_PARENS (RE_NO_BK_BRACES << 1) - -/* If this bit is set, then \<digit> matches <digit>. - If not set, then \<digit> is a back-reference. */ -#define RE_NO_BK_REFS (RE_NO_BK_PARENS << 1) - -/* If this bit is set, then | is an alternation operator, and \| is literal. - If not set, then \| is an alternation operator, and | is literal. */ -#define RE_NO_BK_VBAR (RE_NO_BK_REFS << 1) - -/* If this bit is set, then an ending range point collating higher - than the starting range point, as in [z-a], is invalid. - If not set, then when ending range point collates higher than the - starting range point, the range is ignored. */ -#define RE_NO_EMPTY_RANGES (RE_NO_BK_VBAR << 1) - -/* If this bit is set, then an unmatched ) is ordinary. - If not set, then an unmatched ) is invalid. */ -#define RE_UNMATCHED_RIGHT_PAREN_ORD (RE_NO_EMPTY_RANGES << 1) - -/* If this bit is set, succeed as soon as we match the whole pattern, - without further backtracking. */ -#define RE_NO_POSIX_BACKTRACKING (RE_UNMATCHED_RIGHT_PAREN_ORD << 1) - -/* If this bit is set, do not process the GNU regex operators. - If not set, then the GNU regex operators are recognized. */ -#define RE_NO_GNU_OPS (RE_NO_POSIX_BACKTRACKING << 1) - -/* If this bit is set, turn on internal regex debugging. - If not set, and debugging was on, turn it off. - This only works if regex.c is compiled -DDEBUG. - We define this bit always, so that all that's needed to turn on - debugging is to recompile regex.c; the calling code can always have - this bit set, and it won't affect anything in the normal case. */ -#define RE_DEBUG (RE_NO_GNU_OPS << 1) - -/* If this bit is set, a syntactically invalid interval is treated as - a string of ordinary characters. For example, the ERE 'a{1' is - treated as 'a\{1'. */ -#define RE_INVALID_INTERVAL_ORD (RE_DEBUG << 1) - -/* This global variable defines the particular regexp syntax to use (for - some interfaces). When a regexp is compiled, the syntax used is - stored in the pattern buffer, so changing this does not affect - already-compiled regexps. */ -extern reg_syntax_t re_syntax_options; - -/* Define combinations of the above bits for the standard possibilities. - (The [[[ comments delimit what gets put into the Texinfo file, so - don't delete them!) */ -/* [[[begin syntaxes]]] */ -#define RE_SYNTAX_EMACS 0 - -#define RE_SYNTAX_AWK \ - (RE_BACKSLASH_ESCAPE_IN_LISTS | RE_DOT_NOT_NULL \ - | RE_NO_BK_PARENS | RE_NO_BK_REFS \ - | RE_NO_BK_VBAR | RE_NO_EMPTY_RANGES \ - | RE_DOT_NEWLINE | RE_CONTEXT_INDEP_ANCHORS \ - | RE_UNMATCHED_RIGHT_PAREN_ORD | RE_NO_GNU_OPS) - -#define RE_SYNTAX_GNU_AWK \ - ((RE_SYNTAX_POSIX_EXTENDED | RE_BACKSLASH_ESCAPE_IN_LISTS | RE_DEBUG) \ - & ~(RE_DOT_NOT_NULL | RE_INTERVALS | RE_CONTEXT_INDEP_OPS)) - -#define RE_SYNTAX_POSIX_AWK \ - (RE_SYNTAX_POSIX_EXTENDED | RE_BACKSLASH_ESCAPE_IN_LISTS \ - | RE_INTERVALS | RE_NO_GNU_OPS) - -#define RE_SYNTAX_GREP \ - (RE_BK_PLUS_QM | RE_CHAR_CLASSES \ - | RE_HAT_LISTS_NOT_NEWLINE | RE_INTERVALS \ - | RE_NEWLINE_ALT) - -#define RE_SYNTAX_EGREP \ - (RE_CHAR_CLASSES | RE_CONTEXT_INDEP_ANCHORS \ - | RE_CONTEXT_INDEP_OPS | RE_HAT_LISTS_NOT_NEWLINE \ - | RE_NEWLINE_ALT | RE_NO_BK_PARENS \ - | RE_NO_BK_VBAR) - -#define RE_SYNTAX_POSIX_EGREP \ - (RE_SYNTAX_EGREP | RE_INTERVALS | RE_NO_BK_BRACES \ - | RE_INVALID_INTERVAL_ORD) - -/* P1003.2/D11.2, section 4.20.7.1, lines 5078ff. */ -#define RE_SYNTAX_ED RE_SYNTAX_POSIX_BASIC - -#define RE_SYNTAX_SED RE_SYNTAX_POSIX_BASIC - -/* Syntax bits common to both basic and extended POSIX regex syntax. */ -#define _RE_SYNTAX_POSIX_COMMON \ - (RE_CHAR_CLASSES | RE_DOT_NEWLINE | RE_DOT_NOT_NULL \ - | RE_INTERVALS | RE_NO_EMPTY_RANGES) - -#define RE_SYNTAX_POSIX_BASIC \ - (_RE_SYNTAX_POSIX_COMMON | RE_BK_PLUS_QM) - -/* Differs from ..._POSIX_BASIC only in that RE_BK_PLUS_QM becomes - RE_LIMITED_OPS, i.e., \? \+ \| are not recognized. Actually, this - isn't minimal, since other operators, such as \`, aren't disabled. */ -#define RE_SYNTAX_POSIX_MINIMAL_BASIC \ - (_RE_SYNTAX_POSIX_COMMON | RE_LIMITED_OPS) - -#define RE_SYNTAX_POSIX_EXTENDED \ - (_RE_SYNTAX_POSIX_COMMON | RE_CONTEXT_INDEP_ANCHORS \ - | RE_CONTEXT_INDEP_OPS | RE_NO_BK_BRACES \ - | RE_NO_BK_PARENS | RE_NO_BK_VBAR \ - | RE_CONTEXT_INVALID_OPS | RE_UNMATCHED_RIGHT_PAREN_ORD) - -/* Differs from ..._POSIX_EXTENDED in that RE_CONTEXT_INDEP_OPS is - removed and RE_NO_BK_REFS is added. */ -#define RE_SYNTAX_POSIX_MINIMAL_EXTENDED \ - (_RE_SYNTAX_POSIX_COMMON | RE_CONTEXT_INDEP_ANCHORS \ - | RE_CONTEXT_INVALID_OPS | RE_NO_BK_BRACES \ - | RE_NO_BK_PARENS | RE_NO_BK_REFS \ - | RE_NO_BK_VBAR | RE_UNMATCHED_RIGHT_PAREN_ORD) -/* [[[end syntaxes]]] */ - -/* Maximum number of duplicates an interval can allow. Some systems - (erroneously) define this in other header files, but we want our - value, so remove any previous define. */ -#ifdef RE_DUP_MAX -# undef RE_DUP_MAX -#endif -/* If sizeof(int) == 2, then ((1 << 15) - 1) overflows. */ -#define RE_DUP_MAX (0x7fff) - - -/* POSIX `cflags' bits (i.e., information for `regcomp'). */ - -/* If this bit is set, then use extended regular expression syntax. - If not set, then use basic regular expression syntax. */ -#define REG_EXTENDED 1 - -/* If this bit is set, then ignore case when matching. - If not set, then case is significant. */ -#define REG_ICASE (REG_EXTENDED << 1) - -/* If this bit is set, then anchors do not match at newline - characters in the string. - If not set, then anchors do match at newlines. */ -#define REG_NEWLINE (REG_ICASE << 1) - -/* If this bit is set, then report only success or fail in regexec. - If not set, then returns differ between not matching and errors. */ -#define REG_NOSUB (REG_NEWLINE << 1) - - -/* POSIX `eflags' bits (i.e., information for regexec). */ - -/* If this bit is set, then the beginning-of-line operator doesn't match - the beginning of the string (presumably because it's not the - beginning of a line). - If not set, then the beginning-of-line operator does match the - beginning of the string. */ -#define REG_NOTBOL 1 - -/* Like REG_NOTBOL, except for the end-of-line. */ -#define REG_NOTEOL (1 << 1) - - -/* If any error codes are removed, changed, or added, update the - `re_error_msg' table in regex.c. */ -typedef enum -{ -#ifdef _XOPEN_SOURCE - REG_ENOSYS = -1, /* This will never happen for this implementation. */ -#endif - - REG_NOERROR = 0, /* Success. */ - REG_NOMATCH, /* Didn't find a match (for regexec). */ - - /* POSIX regcomp return error codes. (In the order listed in the - standard.) */ - REG_BADPAT, /* Invalid pattern. */ - REG_ECOLLATE, /* Not implemented. */ - REG_ECTYPE, /* Invalid character class name. */ - REG_EESCAPE, /* Trailing backslash. */ - REG_ESUBREG, /* Invalid back reference. */ - REG_EBRACK, /* Unmatched left bracket. */ - REG_EPAREN, /* Parenthesis imbalance. */ - REG_EBRACE, /* Unmatched \{. */ - REG_BADBR, /* Invalid contents of \{\}. */ - REG_ERANGE, /* Invalid range end. */ - REG_ESPACE, /* Ran out of memory. */ - REG_BADRPT, /* No preceding re for repetition op. */ - - /* Error codes we've added. */ - REG_EEND, /* Premature end. */ - REG_ESIZE, /* Compiled pattern bigger than 2^16 bytes. */ - REG_ERPAREN /* Unmatched ) or \); not returned from regcomp. */ -} reg_errcode_t; - -/* This data structure represents a compiled pattern. Before calling - the pattern compiler, the fields `buffer', `allocated', `fastmap', - `translate', and `no_sub' can be set. After the pattern has been - compiled, the `re_nsub' field is available. All other fields are - private to the regex routines. */ - -#ifndef RE_TRANSLATE_TYPE -# define RE_TRANSLATE_TYPE char * -#endif - -struct re_pattern_buffer -{ -/* [[[begin pattern_buffer]]] */ - /* Space that holds the compiled pattern. It is declared as - `unsigned char *' because its elements are - sometimes used as array indexes. */ - unsigned char *buffer; - - /* Number of bytes to which `buffer' points. */ - unsigned long int allocated; - - /* Number of bytes actually used in `buffer'. */ - unsigned long int used; - - /* Syntax setting with which the pattern was compiled. */ - reg_syntax_t syntax; - - /* Pointer to a fastmap, if any, otherwise zero. re_search uses - the fastmap, if there is one, to skip over impossible - starting points for matches. */ - char *fastmap; - - /* Either a translate table to apply to all characters before - comparing them, or zero for no translation. The translation - is applied to a pattern when it is compiled and to a string - when it is matched. */ - RE_TRANSLATE_TYPE translate; - - /* Number of subexpressions found by the compiler. */ - size_t re_nsub; - - /* Zero if this pattern cannot match the empty string, one else. - Well, in truth it's used only in `re_search_2', to see - whether or not we should use the fastmap, so we don't set - this absolutely perfectly; see `re_compile_fastmap' (the - `duplicate' case). */ - unsigned can_be_null : 1; - - /* If REGS_UNALLOCATED, allocate space in the `regs' structure - for `max (RE_NREGS, re_nsub + 1)' groups. - If REGS_REALLOCATE, reallocate space if necessary. - If REGS_FIXED, use what's there. */ -#define REGS_UNALLOCATED 0 -#define REGS_REALLOCATE 1 -#define REGS_FIXED 2 - unsigned regs_allocated : 2; - - /* Set to zero when `regex_compile' compiles a pattern; set to one - by `re_compile_fastmap' if it updates the fastmap. */ - unsigned fastmap_accurate : 1; - - /* If set, `re_match_2' does not return information about - subexpressions. */ - unsigned no_sub : 1; - - /* If set, a beginning-of-line anchor doesn't match at the - beginning of the string. */ - unsigned not_bol : 1; - - /* Similarly for an end-of-line anchor. */ - unsigned not_eol : 1; - - /* If true, an anchor at a newline matches. */ - unsigned newline_anchor : 1; - -/* [[[end pattern_buffer]]] */ -}; - -typedef struct re_pattern_buffer regex_t; - -/* Type for byte offsets within the string. POSIX mandates this. */ -typedef int regoff_t; - - -/* This is the structure we store register match data in. See - regex.texinfo for a full description of what registers match. */ -struct re_registers -{ - unsigned num_regs; - regoff_t *start; - regoff_t *end; -}; - - -/* If `regs_allocated' is REGS_UNALLOCATED in the pattern buffer, - `re_match_2' returns information about at least this many registers - the first time a `regs' structure is passed. */ -#ifndef RE_NREGS -# define RE_NREGS 30 -#endif - - -/* POSIX specification for registers. Aside from the different names than - `re_registers', POSIX uses an array of structures, instead of a - structure of arrays. */ -typedef struct -{ - regoff_t rm_so; /* Byte offset from string's start to substring's start. */ - regoff_t rm_eo; /* Byte offset from string's start to substring's end. */ -} regmatch_t; - -/* Declarations for routines. */ - -/* To avoid duplicating every routine declaration -- once with a - prototype (if we are ANSI), and once without (if we aren't) -- we - use the following macro to declare argument types. This - unfortunately clutters up the declarations a bit, but I think it's - worth it. */ - -#ifndef __STDC__ -#define __STDC__ 1 -#endif - -#if __STDC__ - -# define _RE_ARGS(args) args - -#else /* not __STDC__ */ - -# define _RE_ARGS(args) () - -#endif /* not __STDC__ */ - -/* Sets the current default syntax to SYNTAX, and return the old syntax. - You can also simply assign to the `re_syntax_options' variable. */ -extern reg_syntax_t re_set_syntax _RE_ARGS ((reg_syntax_t syntax)); - -/* Compile the regular expression PATTERN, with length LENGTH - and syntax given by the global `re_syntax_options', into the buffer - BUFFER. Return NULL if successful, and an error string if not. */ -extern const char *re_compile_pattern - _RE_ARGS ((const char *pattern, size_t length, - struct re_pattern_buffer *buffer)); - - -/* Compile a fastmap for the compiled pattern in BUFFER; used to - accelerate searches. Return 0 if successful and -2 if was an - internal error. */ -extern int re_compile_fastmap _RE_ARGS ((struct re_pattern_buffer *buffer)); - - -/* Search in the string STRING (with length LENGTH) for the pattern - compiled into BUFFER. Start searching at position START, for RANGE - characters. Return the starting position of the match, -1 for no - match, or -2 for an internal error. Also return register - information in REGS (if REGS and BUFFER->no_sub are nonzero). */ -extern int re_search - _RE_ARGS ((struct re_pattern_buffer *buffer, const char *string, - int length, int start, int range, struct re_registers *regs)); - - -/* Like `re_search', but search in the concatenation of STRING1 and - STRING2. Also, stop searching at index START + STOP. */ -extern int re_search_2 - _RE_ARGS ((struct re_pattern_buffer *buffer, const char *string1, - int length1, const char *string2, int length2, - int start, int range, struct re_registers *regs, int stop)); - - -/* Like `re_search', but return how many characters in STRING the regexp - in BUFFER matched, starting at position START. */ -extern int re_match - _RE_ARGS ((struct re_pattern_buffer *buffer, const char *string, - int length, int start, struct re_registers *regs)); - - -/* Relates to `re_match' as `re_search_2' relates to `re_search'. */ -extern int re_match_2 - _RE_ARGS ((struct re_pattern_buffer *buffer, const char *string1, - int length1, const char *string2, int length2, - int start, struct re_registers *regs, int stop)); - - -/* Set REGS to hold NUM_REGS registers, storing them in STARTS and - ENDS. Subsequent matches using BUFFER and REGS will use this memory - for recording register information. STARTS and ENDS must be - allocated with malloc, and must each be at least `NUM_REGS * sizeof - (regoff_t)' bytes long. - - If NUM_REGS == 0, then subsequent matches should allocate their own - register data. - - Unless this function is called, the first search or match using - PATTERN_BUFFER will allocate its own register data, without - freeing the old data. */ -extern void re_set_registers - _RE_ARGS ((struct re_pattern_buffer *buffer, struct re_registers *regs, - unsigned num_regs, regoff_t *starts, regoff_t *ends)); - -#if defined _REGEX_RE_COMP || defined _LIBC -# ifndef _CRAY -/* 4.2 bsd compatibility. */ -extern char *re_comp _RE_ARGS ((const char *)); -extern int re_exec _RE_ARGS ((const char *)); -# endif -#endif - -/* GCC 2.95 and later have "__restrict"; C99 compilers have - "restrict", and "configure" may have defined "restrict". */ -#ifndef __restrict -# if ! (2 < __GNUC__ || (2 == __GNUC__ && 95 <= __GNUC_MINOR__)) -# if defined restrict || 199901L <= __STDC_VERSION__ -# define __restrict restrict -# else -# define __restrict -# endif -# endif -#endif -/* For now unconditionally define __restrict_arr to expand to nothing. - Ideally we would have a test for the compiler which allows defining - it to restrict. */ -#define __restrict_arr - -/* POSIX compatibility. */ -extern int regcomp _RE_ARGS ((regex_t *__restrict __preg, - const char *__restrict __pattern, - int __cflags)); - -extern int regexec _RE_ARGS ((const regex_t *__restrict __preg, - const char *__restrict __string, size_t __nmatch, - regmatch_t __pmatch[__restrict_arr], - int __eflags)); - -extern size_t regerror _RE_ARGS ((int __errcode, const regex_t *__preg, - char *__errbuf, size_t __errbuf_size)); - -extern void regfree _RE_ARGS ((regex_t *__preg)); - - -#ifdef __cplusplus -} -#endif /* C++ */ - -#endif /* regex.h */ diff --git a/include/zlib.h b/include/zlib.h deleted file mode 100644 index 52cb529..0000000 --- a/include/zlib.h +++ /dev/null @@ -1,893 +0,0 @@ -/* zlib.h -- interface of the 'zlib' general purpose compression library - version 1.1.4, March 11th, 2002 - - Copyright (C) 1995-2002 Jean-loup Gailly and Mark Adler - - This software is provided 'as-is', without any express or implied - warranty. In no event will the authors be held liable for any damages - arising from the use of this software. - - Permission is granted to anyone to use this software for any purpose, - including commercial applications, and to alter it and redistribute it - freely, subject to the following restrictions: - - 1. The origin of this software must not be misrepresented; you must not - claim that you wrote the original software. If you use this software - in a product, an acknowledgment in the product documentation would be - appreciated but is not required. - 2. Altered source versions must be plainly marked as such, and must not be - misrepresented as being the original software. - 3. This notice may not be removed or altered from any source distribution. - - Jean-loup Gailly Mark Adler - jloup@gzip.org madler@alumni.caltech.edu - - - The data format used by the zlib library is described by RFCs (Request for - Comments) 1950 to 1952 in the files ftp://ds.internic.net/rfc/rfc1950.txt - (zlib format), rfc1951.txt (deflate format) and rfc1952.txt (gzip format). -*/ - -#ifndef _ZLIB_H -#define _ZLIB_H - -#include "zconf.h" - -#ifdef __cplusplus -extern "C" { -#endif - -#define ZLIB_VERSION "1.1.4" - -/* - The 'zlib' compression library provides in-memory compression and - decompression functions, including integrity checks of the uncompressed - data. This version of the library supports only one compression method - (deflation) but other algorithms will be added later and will have the same - stream interface. - - Compression can be done in a single step if the buffers are large - enough (for example if an input file is mmap'ed), or can be done by - repeated calls of the compression function. In the latter case, the - application must provide more input and/or consume the output - (providing more output space) before each call. - - The library also supports reading and writing files in gzip (.gz) format - with an interface similar to that of stdio. - - The library does not install any signal handler. The decoder checks - the consistency of the compressed data, so the library should never - crash even in case of corrupted input. -*/ - -typedef voidpf (*alloc_func) OF((voidpf opaque, uInt items, uInt size)); -typedef void (*free_func) OF((voidpf opaque, voidpf address)); - -struct internal_state; - -typedef struct z_stream_s { - Bytef *next_in; /* next input byte */ - uInt avail_in; /* number of bytes available at next_in */ - uLong total_in; /* total nb of input bytes read so far */ - - Bytef *next_out; /* next output byte should be put there */ - uInt avail_out; /* remaining free space at next_out */ - uLong total_out; /* total nb of bytes output so far */ - - char *msg; /* last error message, NULL if no error */ - struct internal_state FAR *state; /* not visible by applications */ - - alloc_func zalloc; /* used to allocate the internal state */ - free_func zfree; /* used to free the internal state */ - voidpf opaque; /* private data object passed to zalloc and zfree */ - - int data_type; /* best guess about the data type: ascii or binary */ - uLong adler; /* adler32 value of the uncompressed data */ - uLong reserved; /* reserved for future use */ -} z_stream; - -typedef z_stream FAR *z_streamp; - -/* - The application must update next_in and avail_in when avail_in has - dropped to zero. It must update next_out and avail_out when avail_out - has dropped to zero. The application must initialize zalloc, zfree and - opaque before calling the init function. All other fields are set by the - compression library and must not be updated by the application. - - The opaque value provided by the application will be passed as the first - parameter for calls of zalloc and zfree. This can be useful for custom - memory management. The compression library attaches no meaning to the - opaque value. - - zalloc must return Z_NULL if there is not enough memory for the object. - If zlib is used in a multi-threaded application, zalloc and zfree must be - thread safe. - - On 16-bit systems, the functions zalloc and zfree must be able to allocate - exactly 65536 bytes, but will not be required to allocate more than this - if the symbol MAXSEG_64K is defined (see zconf.h). WARNING: On MSDOS, - pointers returned by zalloc for objects of exactly 65536 bytes *must* - have their offset normalized to zero. The default allocation function - provided by this library ensures this (see zutil.c). To reduce memory - requirements and avoid any allocation of 64K objects, at the expense of - compression ratio, compile the library with -DMAX_WBITS=14 (see zconf.h). - - The fields total_in and total_out can be used for statistics or - progress reports. After compression, total_in holds the total size of - the uncompressed data and may be saved for use in the decompressor - (particularly if the decompressor wants to decompress everything in - a single step). -*/ - - /* constants */ - -#define Z_NO_FLUSH 0 -#define Z_PARTIAL_FLUSH 1 /* will be removed, use Z_SYNC_FLUSH instead */ -#define Z_SYNC_FLUSH 2 -#define Z_FULL_FLUSH 3 -#define Z_FINISH 4 -/* Allowed flush values; see deflate() below for details */ - -#define Z_OK 0 -#define Z_STREAM_END 1 -#define Z_NEED_DICT 2 -#define Z_ERRNO (-1) -#define Z_STREAM_ERROR (-2) -#define Z_DATA_ERROR (-3) -#define Z_MEM_ERROR (-4) -#define Z_BUF_ERROR (-5) -#define Z_VERSION_ERROR (-6) -/* Return codes for the compression/decompression functions. Negative - * values are errors, positive values are used for special but normal events. - */ - -#define Z_NO_COMPRESSION 0 -#define Z_BEST_SPEED 1 -#define Z_BEST_COMPRESSION 9 -#define Z_DEFAULT_COMPRESSION (-1) -/* compression levels */ - -#define Z_FILTERED 1 -#define Z_HUFFMAN_ONLY 2 -#define Z_DEFAULT_STRATEGY 0 -/* compression strategy; see deflateInit2() below for details */ - -#define Z_BINARY 0 -#define Z_ASCII 1 -#define Z_UNKNOWN 2 -/* Possible values of the data_type field */ - -#define Z_DEFLATED 8 -/* The deflate compression method (the only one supported in this version) */ - -#define Z_NULL 0 /* for initializing zalloc, zfree, opaque */ - -#define zlib_version zlibVersion() -/* for compatibility with versions < 1.0.2 */ - - /* basic functions */ - -ZEXTERN const char * ZEXPORT zlibVersion OF((void)); -/* The application can compare zlibVersion and ZLIB_VERSION for consistency. - If the first character differs, the library code actually used is - not compatible with the zlib.h header file used by the application. - This check is automatically made by deflateInit and inflateInit. - */ - -/* -ZEXTERN int ZEXPORT deflateInit OF((z_streamp strm, int level)); - - Initializes the internal stream state for compression. The fields - zalloc, zfree and opaque must be initialized before by the caller. - If zalloc and zfree are set to Z_NULL, deflateInit updates them to - use default allocation functions. - - The compression level must be Z_DEFAULT_COMPRESSION, or between 0 and 9: - 1 gives best speed, 9 gives best compression, 0 gives no compression at - all (the input data is simply copied a block at a time). - Z_DEFAULT_COMPRESSION requests a default compromise between speed and - compression (currently equivalent to level 6). - - deflateInit returns Z_OK if success, Z_MEM_ERROR if there was not - enough memory, Z_STREAM_ERROR if level is not a valid compression level, - Z_VERSION_ERROR if the zlib library version (zlib_version) is incompatible - with the version assumed by the caller (ZLIB_VERSION). - msg is set to null if there is no error message. deflateInit does not - perform any compression: this will be done by deflate(). -*/ - - -ZEXTERN int ZEXPORT deflate OF((z_streamp strm, int flush)); -/* - deflate compresses as much data as possible, and stops when the input - buffer becomes empty or the output buffer becomes full. It may introduce some - output latency (reading input without producing any output) except when - forced to flush. - - The detailed semantics are as follows. deflate performs one or both of the - following actions: - - - Compress more input starting at next_in and update next_in and avail_in - accordingly. If not all input can be processed (because there is not - enough room in the output buffer), next_in and avail_in are updated and - processing will resume at this point for the next call of deflate(). - - - Provide more output starting at next_out and update next_out and avail_out - accordingly. This action is forced if the parameter flush is non zero. - Forcing flush frequently degrades the compression ratio, so this parameter - should be set only when necessary (in interactive applications). - Some output may be provided even if flush is not set. - - Before the call of deflate(), the application should ensure that at least - one of the actions is possible, by providing more input and/or consuming - more output, and updating avail_in or avail_out accordingly; avail_out - should never be zero before the call. The application can consume the - compressed output when it wants, for example when the output buffer is full - (avail_out == 0), or after each call of deflate(). If deflate returns Z_OK - and with zero avail_out, it must be called again after making room in the - output buffer because there might be more output pending. - - If the parameter flush is set to Z_SYNC_FLUSH, all pending output is - flushed to the output buffer and the output is aligned on a byte boundary, so - that the decompressor can get all input data available so far. (In particular - avail_in is zero after the call if enough output space has been provided - before the call.) Flushing may degrade compression for some compression - algorithms and so it should be used only when necessary. - - If flush is set to Z_FULL_FLUSH, all output is flushed as with - Z_SYNC_FLUSH, and the compression state is reset so that decompression can - restart from this point if previous compressed data has been damaged or if - random access is desired. Using Z_FULL_FLUSH too often can seriously degrade - the compression. - - If deflate returns with avail_out == 0, this function must be called again - with the same value of the flush parameter and more output space (updated - avail_out), until the flush is complete (deflate returns with non-zero - avail_out). - - If the parameter flush is set to Z_FINISH, pending input is processed, - pending output is flushed and deflate returns with Z_STREAM_END if there - was enough output space; if deflate returns with Z_OK, this function must be - called again with Z_FINISH and more output space (updated avail_out) but no - more input data, until it returns with Z_STREAM_END or an error. After - deflate has returned Z_STREAM_END, the only possible operations on the - stream are deflateReset or deflateEnd. - - Z_FINISH can be used immediately after deflateInit if all the compression - is to be done in a single step. In this case, avail_out must be at least - 0.1% larger than avail_in plus 12 bytes. If deflate does not return - Z_STREAM_END, then it must be called again as described above. - - deflate() sets strm->adler to the adler32 checksum of all input read - so far (that is, total_in bytes). - - deflate() may update data_type if it can make a good guess about - the input data type (Z_ASCII or Z_BINARY). In doubt, the data is considered - binary. This field is only for information purposes and does not affect - the compression algorithm in any manner. - - deflate() returns Z_OK if some progress has been made (more input - processed or more output produced), Z_STREAM_END if all input has been - consumed and all output has been produced (only when flush is set to - Z_FINISH), Z_STREAM_ERROR if the stream state was inconsistent (for example - if next_in or next_out was NULL), Z_BUF_ERROR if no progress is possible - (for example avail_in or avail_out was zero). -*/ - - -ZEXTERN int ZEXPORT deflateEnd OF((z_streamp strm)); -/* - All dynamically allocated data structures for this stream are freed. - This function discards any unprocessed input and does not flush any - pending output. - - deflateEnd returns Z_OK if success, Z_STREAM_ERROR if the - stream state was inconsistent, Z_DATA_ERROR if the stream was freed - prematurely (some input or output was discarded). In the error case, - msg may be set but then points to a static string (which must not be - deallocated). -*/ - - -/* -ZEXTERN int ZEXPORT inflateInit OF((z_streamp strm)); - - Initializes the internal stream state for decompression. The fields - next_in, avail_in, zalloc, zfree and opaque must be initialized before by - the caller. If next_in is not Z_NULL and avail_in is large enough (the exact - value depends on the compression method), inflateInit determines the - compression method from the zlib header and allocates all data structures - accordingly; otherwise the allocation will be deferred to the first call of - inflate. If zalloc and zfree are set to Z_NULL, inflateInit updates them to - use default allocation functions. - - inflateInit returns Z_OK if success, Z_MEM_ERROR if there was not enough - memory, Z_VERSION_ERROR if the zlib library version is incompatible with the - version assumed by the caller. msg is set to null if there is no error - message. inflateInit does not perform any decompression apart from reading - the zlib header if present: this will be done by inflate(). (So next_in and - avail_in may be modified, but next_out and avail_out are unchanged.) -*/ - - -ZEXTERN int ZEXPORT inflate OF((z_streamp strm, int flush)); -/* - inflate decompresses as much data as possible, and stops when the input - buffer becomes empty or the output buffer becomes full. It may some - introduce some output latency (reading input without producing any output) - except when forced to flush. - - The detailed semantics are as follows. inflate performs one or both of the - following actions: - - - Decompress more input starting at next_in and update next_in and avail_in - accordingly. If not all input can be processed (because there is not - enough room in the output buffer), next_in is updated and processing - will resume at this point for the next call of inflate(). - - - Provide more output starting at next_out and update next_out and avail_out - accordingly. inflate() provides as much output as possible, until there - is no more input data or no more space in the output buffer (see below - about the flush parameter). - - Before the call of inflate(), the application should ensure that at least - one of the actions is possible, by providing more input and/or consuming - more output, and updating the next_* and avail_* values accordingly. - The application can consume the uncompressed output when it wants, for - example when the output buffer is full (avail_out == 0), or after each - call of inflate(). If inflate returns Z_OK and with zero avail_out, it - must be called again after making room in the output buffer because there - might be more output pending. - - If the parameter flush is set to Z_SYNC_FLUSH, inflate flushes as much - output as possible to the output buffer. The flushing behavior of inflate is - not specified for values of the flush parameter other than Z_SYNC_FLUSH - and Z_FINISH, but the current implementation actually flushes as much output - as possible anyway. - - inflate() should normally be called until it returns Z_STREAM_END or an - error. However if all decompression is to be performed in a single step - (a single call of inflate), the parameter flush should be set to - Z_FINISH. In this case all pending input is processed and all pending - output is flushed; avail_out must be large enough to hold all the - uncompressed data. (The size of the uncompressed data may have been saved - by the compressor for this purpose.) The next operation on this stream must - be inflateEnd to deallocate the decompression state. The use of Z_FINISH - is never required, but can be used to inform inflate that a faster routine - may be used for the single inflate() call. - - If a preset dictionary is needed at this point (see inflateSetDictionary - below), inflate sets strm-adler to the adler32 checksum of the - dictionary chosen by the compressor and returns Z_NEED_DICT; otherwise - it sets strm->adler to the adler32 checksum of all output produced - so far (that is, total_out bytes) and returns Z_OK, Z_STREAM_END or - an error code as described below. At the end of the stream, inflate() - checks that its computed adler32 checksum is equal to that saved by the - compressor and returns Z_STREAM_END only if the checksum is correct. - - inflate() returns Z_OK if some progress has been made (more input processed - or more output produced), Z_STREAM_END if the end of the compressed data has - been reached and all uncompressed output has been produced, Z_NEED_DICT if a - preset dictionary is needed at this point, Z_DATA_ERROR if the input data was - corrupted (input stream not conforming to the zlib format or incorrect - adler32 checksum), Z_STREAM_ERROR if the stream structure was inconsistent - (for example if next_in or next_out was NULL), Z_MEM_ERROR if there was not - enough memory, Z_BUF_ERROR if no progress is possible or if there was not - enough room in the output buffer when Z_FINISH is used. In the Z_DATA_ERROR - case, the application may then call inflateSync to look for a good - compression block. -*/ - - -ZEXTERN int ZEXPORT inflateEnd OF((z_streamp strm)); -/* - All dynamically allocated data structures for this stream are freed. - This function discards any unprocessed input and does not flush any - pending output. - - inflateEnd returns Z_OK if success, Z_STREAM_ERROR if the stream state - was inconsistent. In the error case, msg may be set but then points to a - static string (which must not be deallocated). -*/ - - /* Advanced functions */ - -/* - The following functions are needed only in some special applications. -*/ - -/* -ZEXTERN int ZEXPORT deflateInit2 OF((z_streamp strm, - int level, - int method, - int windowBits, - int memLevel, - int strategy)); - - This is another version of deflateInit with more compression options. The - fields next_in, zalloc, zfree and opaque must be initialized before by - the caller. - - The method parameter is the compression method. It must be Z_DEFLATED in - this version of the library. - - The windowBits parameter is the base two logarithm of the window size - (the size of the history buffer). It should be in the range 8..15 for this - version of the library. Larger values of this parameter result in better - compression at the expense of memory usage. The default value is 15 if - deflateInit is used instead. - - The memLevel parameter specifies how much memory should be allocated - for the internal compression state. memLevel=1 uses minimum memory but - is slow and reduces compression ratio; memLevel=9 uses maximum memory - for optimal speed. The default value is 8. See zconf.h for total memory - usage as a function of windowBits and memLevel. - - The strategy parameter is used to tune the compression algorithm. Use the - value Z_DEFAULT_STRATEGY for normal data, Z_FILTERED for data produced by a - filter (or predictor), or Z_HUFFMAN_ONLY to force Huffman encoding only (no - string match). Filtered data consists mostly of small values with a - somewhat random distribution. In this case, the compression algorithm is - tuned to compress them better. The effect of Z_FILTERED is to force more - Huffman coding and less string matching; it is somewhat intermediate - between Z_DEFAULT and Z_HUFFMAN_ONLY. The strategy parameter only affects - the compression ratio but not the correctness of the compressed output even - if it is not set appropriately. - - deflateInit2 returns Z_OK if success, Z_MEM_ERROR if there was not enough - memory, Z_STREAM_ERROR if a parameter is invalid (such as an invalid - method). msg is set to null if there is no error message. deflateInit2 does - not perform any compression: this will be done by deflate(). -*/ - -ZEXTERN int ZEXPORT deflateSetDictionary OF((z_streamp strm, - const Bytef *dictionary, - uInt dictLength)); -/* - Initializes the compression dictionary from the given byte sequence - without producing any compressed output. This function must be called - immediately after deflateInit, deflateInit2 or deflateReset, before any - call of deflate. The compressor and decompressor must use exactly the same - dictionary (see inflateSetDictionary). - - The dictionary should consist of strings (byte sequences) that are likely - to be encountered later in the data to be compressed, with the most commonly - used strings preferably put towards the end of the dictionary. Using a - dictionary is most useful when the data to be compressed is short and can be - predicted with good accuracy; the data can then be compressed better than - with the default empty dictionary. - - Depending on the size of the compression data structures selected by - deflateInit or deflateInit2, a part of the dictionary may in effect be - discarded, for example if the dictionary is larger than the window size in - deflate or deflate2. Thus the strings most likely to be useful should be - put at the end of the dictionary, not at the front. - - Upon return of this function, strm->adler is set to the Adler32 value - of the dictionary; the decompressor may later use this value to determine - which dictionary has been used by the compressor. (The Adler32 value - applies to the whole dictionary even if only a subset of the dictionary is - actually used by the compressor.) - - deflateSetDictionary returns Z_OK if success, or Z_STREAM_ERROR if a - parameter is invalid (such as NULL dictionary) or the stream state is - inconsistent (for example if deflate has already been called for this stream - or if the compression method is bsort). deflateSetDictionary does not - perform any compression: this will be done by deflate(). -*/ - -ZEXTERN int ZEXPORT deflateCopy OF((z_streamp dest, - z_streamp source)); -/* - Sets the destination stream as a complete copy of the source stream. - - This function can be useful when several compression strategies will be - tried, for example when there are several ways of pre-processing the input - data with a filter. The streams that will be discarded should then be freed - by calling deflateEnd. Note that deflateCopy duplicates the internal - compression state which can be quite large, so this strategy is slow and - can consume lots of memory. - - deflateCopy returns Z_OK if success, Z_MEM_ERROR if there was not - enough memory, Z_STREAM_ERROR if the source stream state was inconsistent - (such as zalloc being NULL). msg is left unchanged in both source and - destination. -*/ - -ZEXTERN int ZEXPORT deflateReset OF((z_streamp strm)); -/* - This function is equivalent to deflateEnd followed by deflateInit, - but does not free and reallocate all the internal compression state. - The stream will keep the same compression level and any other attributes - that may have been set by deflateInit2. - - deflateReset returns Z_OK if success, or Z_STREAM_ERROR if the source - stream state was inconsistent (such as zalloc or state being NULL). -*/ - -ZEXTERN int ZEXPORT deflateParams OF((z_streamp strm, - int level, - int strategy)); -/* - Dynamically update the compression level and compression strategy. The - interpretation of level and strategy is as in deflateInit2. This can be - used to switch between compression and straight copy of the input data, or - to switch to a different kind of input data requiring a different - strategy. If the compression level is changed, the input available so far - is compressed with the old level (and may be flushed); the new level will - take effect only at the next call of deflate(). - - Before the call of deflateParams, the stream state must be set as for - a call of deflate(), since the currently available input may have to - be compressed and flushed. In particular, strm->avail_out must be non-zero. - - deflateParams returns Z_OK if success, Z_STREAM_ERROR if the source - stream state was inconsistent or if a parameter was invalid, Z_BUF_ERROR - if strm->avail_out was zero. -*/ - -/* -ZEXTERN int ZEXPORT inflateInit2 OF((z_streamp strm, - int windowBits)); - - This is another version of inflateInit with an extra parameter. The - fields next_in, avail_in, zalloc, zfree and opaque must be initialized - before by the caller. - - The windowBits parameter is the base two logarithm of the maximum window - size (the size of the history buffer). It should be in the range 8..15 for - this version of the library. The default value is 15 if inflateInit is used - instead. If a compressed stream with a larger window size is given as - input, inflate() will return with the error code Z_DATA_ERROR instead of - trying to allocate a larger window. - - inflateInit2 returns Z_OK if success, Z_MEM_ERROR if there was not enough - memory, Z_STREAM_ERROR if a parameter is invalid (such as a negative - memLevel). msg is set to null if there is no error message. inflateInit2 - does not perform any decompression apart from reading the zlib header if - present: this will be done by inflate(). (So next_in and avail_in may be - modified, but next_out and avail_out are unchanged.) -*/ - -ZEXTERN int ZEXPORT inflateSetDictionary OF((z_streamp strm, - const Bytef *dictionary, - uInt dictLength)); -/* - Initializes the decompression dictionary from the given uncompressed byte - sequence. This function must be called immediately after a call of inflate - if this call returned Z_NEED_DICT. The dictionary chosen by the compressor - can be determined from the Adler32 value returned by this call of - inflate. The compressor and decompressor must use exactly the same - dictionary (see deflateSetDictionary). - - inflateSetDictionary returns Z_OK if success, Z_STREAM_ERROR if a - parameter is invalid (such as NULL dictionary) or the stream state is - inconsistent, Z_DATA_ERROR if the given dictionary doesn't match the - expected one (incorrect Adler32 value). inflateSetDictionary does not - perform any decompression: this will be done by subsequent calls of - inflate(). -*/ - -ZEXTERN int ZEXPORT inflateSync OF((z_streamp strm)); -/* - Skips invalid compressed data until a full flush point (see above the - description of deflate with Z_FULL_FLUSH) can be found, or until all - available input is skipped. No output is provided. - - inflateSync returns Z_OK if a full flush point has been found, Z_BUF_ERROR - if no more input was provided, Z_DATA_ERROR if no flush point has been found, - or Z_STREAM_ERROR if the stream structure was inconsistent. In the success - case, the application may save the current current value of total_in which - indicates where valid compressed data was found. In the error case, the - application may repeatedly call inflateSync, providing more input each time, - until success or end of the input data. -*/ - -ZEXTERN int ZEXPORT inflateReset OF((z_streamp strm)); -/* - This function is equivalent to inflateEnd followed by inflateInit, - but does not free and reallocate all the internal decompression state. - The stream will keep attributes that may have been set by inflateInit2. - - inflateReset returns Z_OK if success, or Z_STREAM_ERROR if the source - stream state was inconsistent (such as zalloc or state being NULL). -*/ - - - /* utility functions */ - -/* - The following utility functions are implemented on top of the - basic stream-oriented functions. To simplify the interface, some - default options are assumed (compression level and memory usage, - standard memory allocation functions). The source code of these - utility functions can easily be modified if you need special options. -*/ - -ZEXTERN int ZEXPORT compress OF((Bytef *dest, uLongf *destLen, - const Bytef *source, uLong sourceLen)); -/* - Compresses the source buffer into the destination buffer. sourceLen is - the byte length of the source buffer. Upon entry, destLen is the total - size of the destination buffer, which must be at least 0.1% larger than - sourceLen plus 12 bytes. Upon exit, destLen is the actual size of the - compressed buffer. - This function can be used to compress a whole file at once if the - input file is mmap'ed. - compress returns Z_OK if success, Z_MEM_ERROR if there was not - enough memory, Z_BUF_ERROR if there was not enough room in the output - buffer. -*/ - -ZEXTERN int ZEXPORT compress2 OF((Bytef *dest, uLongf *destLen, - const Bytef *source, uLong sourceLen, - int level)); -/* - Compresses the source buffer into the destination buffer. The level - parameter has the same meaning as in deflateInit. sourceLen is the byte - length of the source buffer. Upon entry, destLen is the total size of the - destination buffer, which must be at least 0.1% larger than sourceLen plus - 12 bytes. Upon exit, destLen is the actual size of the compressed buffer. - - compress2 returns Z_OK if success, Z_MEM_ERROR if there was not enough - memory, Z_BUF_ERROR if there was not enough room in the output buffer, - Z_STREAM_ERROR if the level parameter is invalid. -*/ - -ZEXTERN int ZEXPORT uncompress OF((Bytef *dest, uLongf *destLen, - const Bytef *source, uLong sourceLen)); -/* - Decompresses the source buffer into the destination buffer. sourceLen is - the byte length of the source buffer. Upon entry, destLen is the total - size of the destination buffer, which must be large enough to hold the - entire uncompressed data. (The size of the uncompressed data must have - been saved previously by the compressor and transmitted to the decompressor - by some mechanism outside the scope of this compression library.) - Upon exit, destLen is the actual size of the compressed buffer. - This function can be used to decompress a whole file at once if the - input file is mmap'ed. - - uncompress returns Z_OK if success, Z_MEM_ERROR if there was not - enough memory, Z_BUF_ERROR if there was not enough room in the output - buffer, or Z_DATA_ERROR if the input data was corrupted. -*/ - - -typedef voidp gzFile; - -ZEXTERN gzFile ZEXPORT gzopen OF((const char *path, const char *mode)); -/* - Opens a gzip (.gz) file for reading or writing. The mode parameter - is as in fopen ("rb" or "wb") but can also include a compression level - ("wb9") or a strategy: 'f' for filtered data as in "wb6f", 'h' for - Huffman only compression as in "wb1h". (See the description - of deflateInit2 for more information about the strategy parameter.) - - gzopen can be used to read a file which is not in gzip format; in this - case gzread will directly read from the file without decompression. - - gzopen returns NULL if the file could not be opened or if there was - insufficient memory to allocate the (de)compression state; errno - can be checked to distinguish the two cases (if errno is zero, the - zlib error is Z_MEM_ERROR). */ - -ZEXTERN gzFile ZEXPORT gzdopen OF((int fd, const char *mode)); -/* - gzdopen() associates a gzFile with the file descriptor fd. File - descriptors are obtained from calls like open, dup, creat, pipe or - fileno (in the file has been previously opened with fopen). - The mode parameter is as in gzopen. - The next call of gzclose on the returned gzFile will also close the - file descriptor fd, just like fclose(fdopen(fd), mode) closes the file - descriptor fd. If you want to keep fd open, use gzdopen(dup(fd), mode). - gzdopen returns NULL if there was insufficient memory to allocate - the (de)compression state. -*/ - -ZEXTERN int ZEXPORT gzsetparams OF((gzFile file, int level, int strategy)); -/* - Dynamically update the compression level or strategy. See the description - of deflateInit2 for the meaning of these parameters. - gzsetparams returns Z_OK if success, or Z_STREAM_ERROR if the file was not - opened for writing. -*/ - -ZEXTERN int ZEXPORT gzread OF((gzFile file, voidp buf, unsigned len)); -/* - Reads the given number of uncompressed bytes from the compressed file. - If the input file was not in gzip format, gzread copies the given number - of bytes into the buffer. - gzread returns the number of uncompressed bytes actually read (0 for - end of file, -1 for error). */ - -ZEXTERN int ZEXPORT gzwrite OF((gzFile file, - const voidp buf, unsigned len)); -/* - Writes the given number of uncompressed bytes into the compressed file. - gzwrite returns the number of uncompressed bytes actually written - (0 in case of error). -*/ - -ZEXTERN int ZEXPORTVA gzprintf OF((gzFile file, const char *format, ...)); -/* - Converts, formats, and writes the args to the compressed file under - control of the format string, as in fprintf. gzprintf returns the number of - uncompressed bytes actually written (0 in case of error). -*/ - -ZEXTERN int ZEXPORT gzputs OF((gzFile file, const char *s)); -/* - Writes the given null-terminated string to the compressed file, excluding - the terminating null character. - gzputs returns the number of characters written, or -1 in case of error. -*/ - -ZEXTERN char * ZEXPORT gzgets OF((gzFile file, char *buf, int len)); -/* - Reads bytes from the compressed file until len-1 characters are read, or - a newline character is read and transferred to buf, or an end-of-file - condition is encountered. The string is then terminated with a null - character. - gzgets returns buf, or Z_NULL in case of error. -*/ - -ZEXTERN int ZEXPORT gzputc OF((gzFile file, int c)); -/* - Writes c, converted to an unsigned char, into the compressed file. - gzputc returns the value that was written, or -1 in case of error. -*/ - -ZEXTERN int ZEXPORT gzgetc OF((gzFile file)); -/* - Reads one byte from the compressed file. gzgetc returns this byte - or -1 in case of end of file or error. -*/ - -ZEXTERN int ZEXPORT gzflush OF((gzFile file, int flush)); -/* - Flushes all pending output into the compressed file. The parameter - flush is as in the deflate() function. The return value is the zlib - error number (see function gzerror below). gzflush returns Z_OK if - the flush parameter is Z_FINISH and all output could be flushed. - gzflush should be called only when strictly necessary because it can - degrade compression. -*/ - -ZEXTERN z_off_t ZEXPORT gzseek OF((gzFile file, - z_off_t offset, int whence)); -/* - Sets the starting position for the next gzread or gzwrite on the - given compressed file. The offset represents a number of bytes in the - uncompressed data stream. The whence parameter is defined as in lseek(2); - the value SEEK_END is not supported. - If the file is opened for reading, this function is emulated but can be - extremely slow. If the file is opened for writing, only forward seeks are - supported; gzseek then compresses a sequence of zeroes up to the new - starting position. - - gzseek returns the resulting offset location as measured in bytes from - the beginning of the uncompressed stream, or -1 in case of error, in - particular if the file is opened for writing and the new starting position - would be before the current position. -*/ - -ZEXTERN int ZEXPORT gzrewind OF((gzFile file)); -/* - Rewinds the given file. This function is supported only for reading. - - gzrewind(file) is equivalent to (int)gzseek(file, 0L, SEEK_SET) -*/ - -ZEXTERN z_off_t ZEXPORT gztell OF((gzFile file)); -/* - Returns the starting position for the next gzread or gzwrite on the - given compressed file. This position represents a number of bytes in the - uncompressed data stream. - - gztell(file) is equivalent to gzseek(file, 0L, SEEK_CUR) -*/ - -ZEXTERN int ZEXPORT gzeof OF((gzFile file)); -/* - Returns 1 when EOF has previously been detected reading the given - input stream, otherwise zero. -*/ - -ZEXTERN int ZEXPORT gzclose OF((gzFile file)); -/* - Flushes all pending output if necessary, closes the compressed file - and deallocates all the (de)compression state. The return value is the zlib - error number (see function gzerror below). -*/ - -ZEXTERN const char * ZEXPORT gzerror OF((gzFile file, int *errnum)); -/* - Returns the error message for the last error which occurred on the - given compressed file. errnum is set to zlib error number. If an - error occurred in the file system and not in the compression library, - errnum is set to Z_ERRNO and the application may consult errno - to get the exact error code. -*/ - - /* checksum functions */ - -/* - These functions are not related to compression but are exported - anyway because they might be useful in applications using the - compression library. -*/ - -ZEXTERN uLong ZEXPORT adler32 OF((uLong adler, const Bytef *buf, uInt len)); - -/* - Update a running Adler-32 checksum with the bytes buf[0..len-1] and - return the updated checksum. If buf is NULL, this function returns - the required initial value for the checksum. - An Adler-32 checksum is almost as reliable as a CRC32 but can be computed - much faster. Usage example: - - uLong adler = adler32(0L, Z_NULL, 0); - - while (read_buffer(buffer, length) != EOF) { - adler = adler32(adler, buffer, length); - } - if (adler != original_adler) error(); -*/ - -ZEXTERN uLong ZEXPORT crc32 OF((uLong crc, const Bytef *buf, uInt len)); -/* - Update a running crc with the bytes buf[0..len-1] and return the updated - crc. If buf is NULL, this function returns the required initial value - for the crc. Pre- and post-conditioning (one's complement) is performed - within this function so it shouldn't be done by the application. - Usage example: - - uLong crc = crc32(0L, Z_NULL, 0); - - while (read_buffer(buffer, length) != EOF) { - crc = crc32(crc, buffer, length); - } - if (crc != original_crc) error(); -*/ - - - /* various hacks, don't look :) */ - -/* deflateInit and inflateInit are macros to allow checking the zlib version - * and the compiler's view of z_stream: - */ -ZEXTERN int ZEXPORT deflateInit_ OF((z_streamp strm, int level, - const char *version, int stream_size)); -ZEXTERN int ZEXPORT inflateInit_ OF((z_streamp strm, - const char *version, int stream_size)); -ZEXTERN int ZEXPORT deflateInit2_ OF((z_streamp strm, int level, int method, - int windowBits, int memLevel, - int strategy, const char *version, - int stream_size)); -ZEXTERN int ZEXPORT inflateInit2_ OF((z_streamp strm, int windowBits, - const char *version, int stream_size)); -#define deflateInit(strm, level) \ - deflateInit_((strm), (level), ZLIB_VERSION, sizeof(z_stream)) -#define inflateInit(strm) \ - inflateInit_((strm), ZLIB_VERSION, sizeof(z_stream)) -#define deflateInit2(strm, level, method, windowBits, memLevel, strategy) \ - deflateInit2_((strm),(level),(method),(windowBits),(memLevel),\ - (strategy), ZLIB_VERSION, sizeof(z_stream)) -#define inflateInit2(strm, windowBits) \ - inflateInit2_((strm), (windowBits), ZLIB_VERSION, sizeof(z_stream)) - - -#if !defined(_Z_UTIL_H) && !defined(NO_DUMMY_DECL) - struct internal_state {int dummy;}; /* hack for buggy compilers */ -#endif - -ZEXTERN const char * ZEXPORT zError OF((int err)); -ZEXTERN int ZEXPORT inflateSyncPoint OF((z_streamp z)); -ZEXTERN const uLongf * ZEXPORT get_crc_table OF((void)); - -#ifdef __cplusplus -} -#endif - -#endif /* _ZLIB_H */ diff --git a/src/utilfuns/regex.c b/src/utilfuns/regex.c deleted file mode 100644 index 79b9ed2..0000000 --- a/src/utilfuns/regex.c +++ /dev/null @@ -1,8383 +0,0 @@ -/* Extended regular expression matching and search library, - version 0.12. - (Implements POSIX draft P1003.2/D11.2, except for some of the - internationalization features.) - Copyright (C) 1993-1999, 2000, 2001 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -/* AIX requires this to be the first thing in the file. */ -#if defined _AIX && !defined REGEX_MALLOC - #pragma alloca -#endif - -#undef _GNU_SOURCE -#define _GNU_SOURCE - -#ifdef HAVE_CONFIG_H -# include <config.h> -#endif - -#ifndef PARAMS -# if defined __GNUC__ || (defined __STDC__ && __STDC__) -# define PARAMS(args) args -# else -# define PARAMS(args) () -# endif /* GCC. */ -#endif /* Not PARAMS. */ - -#ifndef INSIDE_RECURSION - -# if defined STDC_HEADERS && !defined emacs -# include <stddef.h> -# else -/* We need this for `regex.h', and perhaps for the Emacs include files. */ -# include <sys/types.h> -# endif - -# define WIDE_CHAR_SUPPORT (HAVE_WCTYPE_H && HAVE_WCHAR_H && HAVE_BTOWC) - -/* For platform which support the ISO C amendement 1 functionality we - support user defined character classes. */ -# if defined _LIBC || WIDE_CHAR_SUPPORT -/* Solaris 2.5 has a bug: <wchar.h> must be included before <wctype.h>. */ -# include <wchar.h> -# include <wctype.h> -# endif - -# ifdef _LIBC -/* We have to keep the namespace clean. */ -# define regfree(preg) __regfree (preg) -# define regexec(pr, st, nm, pm, ef) __regexec (pr, st, nm, pm, ef) -# define regcomp(preg, pattern, cflags) __regcomp (preg, pattern, cflags) -# define regerror(errcode, preg, errbuf, errbuf_size) \ - __regerror(errcode, preg, errbuf, errbuf_size) -# define re_set_registers(bu, re, nu, st, en) \ - __re_set_registers (bu, re, nu, st, en) -# define re_match_2(bufp, string1, size1, string2, size2, pos, regs, stop) \ - __re_match_2 (bufp, string1, size1, string2, size2, pos, regs, stop) -# define re_match(bufp, string, size, pos, regs) \ - __re_match (bufp, string, size, pos, regs) -# define re_search(bufp, string, size, startpos, range, regs) \ - __re_search (bufp, string, size, startpos, range, regs) -# define re_compile_pattern(pattern, length, bufp) \ - __re_compile_pattern (pattern, length, bufp) -# define re_set_syntax(syntax) __re_set_syntax (syntax) -# define re_search_2(bufp, st1, s1, st2, s2, startpos, range, regs, stop) \ - __re_search_2 (bufp, st1, s1, st2, s2, startpos, range, regs, stop) -# define re_compile_fastmap(bufp) __re_compile_fastmap (bufp) - -# define btowc __btowc - -/* We are also using some library internals. */ -# include <locale/localeinfo.h> -# include <locale/elem-hash.h> -# include <langinfo.h> -# include <locale/coll-lookup.h> -# endif - -/* This is for other GNU distributions with internationalized messages. */ -# if (HAVE_LIBINTL_H && ENABLE_NLS) || defined _LIBC -# include <libintl.h> -# ifdef _LIBC -# undef gettext -# define gettext(msgid) __dcgettext ("libc", msgid, LC_MESSAGES) -# endif -# else -# define gettext(msgid) (msgid) -# endif - -# ifndef gettext_noop -/* This define is so xgettext can find the internationalizable - strings. */ -# define gettext_noop(String) String -# endif - -/* The `emacs' switch turns on certain matching commands - that make sense only in Emacs. */ -# ifdef emacs - -# include "lisp.h" -# include "buffer.h" -# include "syntax.h" - -# else /* not emacs */ - -/* If we are not linking with Emacs proper, - we can't use the relocating allocator - even if config.h says that we can. */ -# undef REL_ALLOC - -# if defined STDC_HEADERS || defined _LIBC -# include <stdlib.h> -# else -char *malloc (); -char *realloc (); -# endif - -/* When used in Emacs's lib-src, we need to get bzero and bcopy somehow. - If nothing else has been done, use the method below. */ -# ifdef INHIBIT_STRING_HEADER -# if !(defined HAVE_BZERO && defined HAVE_BCOPY) -# if !defined bzero && !defined bcopy -# undef INHIBIT_STRING_HEADER -# endif -# endif -# endif - -/* This is the normal way of making sure we have a bcopy and a bzero. - This is used in most programs--a few other programs avoid this - by defining INHIBIT_STRING_HEADER. */ -#define HAVE_STRING_H // for SWORD Project -# ifndef INHIBIT_STRING_HEADER -# if defined HAVE_STRING_H || defined STDC_HEADERS || defined _LIBC -# include <string.h> -# ifndef bzero -# ifndef _LIBC -# define bzero(s, n) (memset (s, '\0', n), (s)) -# else -# define bzero(s, n) __bzero (s, n) -# endif -# endif -# else -# include <strings.h> -# ifndef memcmp -# define memcmp(s1, s2, n) bcmp (s1, s2, n) -# endif -# ifndef memcpy -# define memcpy(d, s, n) (bcopy (s, d, n), (d)) -# endif -# endif -# endif - -/* Define the syntax stuff for \<, \>, etc. */ - -/* This must be nonzero for the wordchar and notwordchar pattern - commands in re_match_2. */ -# ifndef Sword -# define Sword 1 -# endif - -# ifdef SWITCH_ENUM_BUG -# define SWITCH_ENUM_CAST(x) ((int)(x)) -# else -# define SWITCH_ENUM_CAST(x) (x) -# endif - -# endif /* not emacs */ - -# if defined _LIBC || HAVE_LIMITS_H -# include <limits.h> -# endif - -# ifndef MB_LEN_MAX -# define MB_LEN_MAX 1 -# endif - - -/* Get the interface, including the syntax bits. */ -# include <regex.h> - -/* isalpha etc. are used for the character classes. */ -# include <ctype.h> - -/* Jim Meyering writes: - - "... Some ctype macros are valid only for character codes that - isascii says are ASCII (SGI's IRIX-4.0.5 is one such system --when - using /bin/cc or gcc but without giving an ansi option). So, all - ctype uses should be through macros like ISPRINT... If - STDC_HEADERS is defined, then autoconf has verified that the ctype - macros don't need to be guarded with references to isascii. ... - Defining isascii to 1 should let any compiler worth its salt - eliminate the && through constant folding." - Solaris defines some of these symbols so we must undefine them first. */ - -# undef ISASCII -# if defined STDC_HEADERS || (!defined isascii && !defined HAVE_ISASCII) -# define ISASCII(c) 1 -# else -# define ISASCII(c) isascii(c) -# endif - -# ifdef isblank -# define ISBLANK(c) (ISASCII (c) && isblank (c)) -# else -# define ISBLANK(c) ((c) == ' ' || (c) == '\t') -# endif -# ifdef isgraph -# define ISGRAPH(c) (ISASCII (c) && isgraph (c)) -# else -# define ISGRAPH(c) (ISASCII (c) && isprint (c) && !isspace (c)) -# endif - -# undef ISPRINT -# define ISPRINT(c) (ISASCII (c) && isprint (c)) -# define ISDIGIT(c) (ISASCII (c) && isdigit (c)) -# define ISALNUM(c) (ISASCII (c) && isalnum (c)) -# define ISALPHA(c) (ISASCII (c) && isalpha (c)) -# define ISCNTRL(c) (ISASCII (c) && iscntrl (c)) -# define ISLOWER(c) (ISASCII (c) && islower (c)) -# define ISPUNCT(c) (ISASCII (c) && ispunct (c)) -# define ISSPACE(c) (ISASCII (c) && isspace (c)) -# define ISUPPER(c) (ISASCII (c) && isupper (c)) -# define ISXDIGIT(c) (ISASCII (c) && isxdigit (c)) - -# ifdef _tolower -# define TOLOWER(c) _tolower(c) -# else -# define TOLOWER(c) tolower(c) -# endif - -# ifndef NULL -# define NULL (void *)0 -# endif - -/* We remove any previous definition of `SIGN_EXTEND_CHAR', - since ours (we hope) works properly with all combinations of - machines, compilers, `char' and `unsigned char' argument types. - (Per Bothner suggested the basic approach.) */ -# undef SIGN_EXTEND_CHAR -# if __STDC__ -# define SIGN_EXTEND_CHAR(c) ((signed char) (c)) -# else /* not __STDC__ */ -/* As in Harbison and Steele. */ -# define SIGN_EXTEND_CHAR(c) ((((unsigned char) (c)) ^ 128) - 128) -# endif - - -# ifndef emacs -/* How many characters in the character set. */ -# define CHAR_SET_SIZE 256 - -# ifdef SYNTAX_TABLE - -extern char *re_syntax_table; - -# else /* not SYNTAX_TABLE */ - -static char re_syntax_table[CHAR_SET_SIZE]; - -static void init_syntax_once PARAMS ((void)); - -static void -init_syntax_once () -{ - register int c; - static int done = 0; - - if (done) - return; - bzero (re_syntax_table, sizeof re_syntax_table); - - for (c = 0; c < CHAR_SET_SIZE; ++c) - if (ISALNUM (c)) - re_syntax_table[c] = Sword; - - re_syntax_table['_'] = Sword; - - done = 1; -} - -# endif /* not SYNTAX_TABLE */ - -# define SYNTAX(c) re_syntax_table[(unsigned char) (c)] - -# endif /* emacs */ - -#define HAVE_UINTPTR_T -/* Integer type for pointers. */ -# if !defined _LIBC && !defined HAVE_UINTPTR_T -typedef unsigned long int uintptr_t; -# endif - -/* Should we use malloc or alloca? If REGEX_MALLOC is not defined, we - use `alloca' instead of `malloc'. This is because using malloc in - re_search* or re_match* could cause memory leaks when C-g is used in - Emacs; also, malloc is slower and causes storage fragmentation. On - the other hand, malloc is more portable, and easier to debug. - - Because we sometimes use alloca, some routines have to be macros, - not functions -- `alloca'-allocated space disappears at the end of the - function it is called in. */ - -# ifdef REGEX_MALLOC - -# define REGEX_ALLOCATE malloc -# define REGEX_REALLOCATE(source, osize, nsize) realloc (source, nsize) -# define REGEX_FREE free - -# else /* not REGEX_MALLOC */ - -/* Emacs already defines alloca, sometimes. */ -# ifndef alloca - -/* Make alloca work the best possible way. */ -# ifdef __GNUC__ -# define alloca __builtin_alloca -# else /* not __GNUC__ */ -# if HAVE_ALLOCA_H -# include <alloca.h> -# endif /* HAVE_ALLOCA_H */ -# endif /* not __GNUC__ */ - -# endif /* not alloca */ - -# define REGEX_ALLOCATE alloca - -/* Assumes a `char *destination' variable. */ -# define REGEX_REALLOCATE(source, osize, nsize) \ - (destination = (char *) alloca (nsize), \ - memcpy (destination, source, osize)) - -/* No need to do anything to free, after alloca. */ -# define REGEX_FREE(arg) ((void)0) /* Do nothing! But inhibit gcc warning. */ - -# endif /* not REGEX_MALLOC */ - -/* Define how to allocate the failure stack. */ - -# if defined REL_ALLOC && defined REGEX_MALLOC - -# define REGEX_ALLOCATE_STACK(size) \ - r_alloc (&failure_stack_ptr, (size)) -# define REGEX_REALLOCATE_STACK(source, osize, nsize) \ - r_re_alloc (&failure_stack_ptr, (nsize)) -# define REGEX_FREE_STACK(ptr) \ - r_alloc_free (&failure_stack_ptr) - -# else /* not using relocating allocator */ - -# ifdef REGEX_MALLOC - -# define REGEX_ALLOCATE_STACK malloc -# define REGEX_REALLOCATE_STACK(source, osize, nsize) realloc (source, nsize) -# define REGEX_FREE_STACK free - -# else /* not REGEX_MALLOC */ - -# define REGEX_ALLOCATE_STACK alloca - -# define REGEX_REALLOCATE_STACK(source, osize, nsize) \ - REGEX_REALLOCATE (source, osize, nsize) -/* No need to explicitly free anything. */ -# define REGEX_FREE_STACK(arg) - -# endif /* not REGEX_MALLOC */ -# endif /* not using relocating allocator */ - - -/* True if `size1' is non-NULL and PTR is pointing anywhere inside - `string1' or just past its end. This works if PTR is NULL, which is - a good thing. */ -# define FIRST_STRING_P(ptr) \ - (size1 && string1 <= (ptr) && (ptr) <= string1 + size1) - -/* (Re)Allocate N items of type T using malloc, or fail. */ -# define TALLOC(n, t) ((t *) malloc ((n) * sizeof (t))) -# define RETALLOC(addr, n, t) ((addr) = (t *) realloc (addr, (n) * sizeof (t))) -# define RETALLOC_IF(addr, n, t) \ - if (addr) RETALLOC((addr), (n), t); else (addr) = TALLOC ((n), t) -# define REGEX_TALLOC(n, t) ((t *) REGEX_ALLOCATE ((n) * sizeof (t))) - -# define BYTEWIDTH 8 /* In bits. */ - -# define STREQ(s1, s2) ((strcmp (s1, s2) == 0)) - -# undef MAX -# undef MIN -# define MAX(a, b) ((a) > (b) ? (a) : (b)) -# define MIN(a, b) ((a) < (b) ? (a) : (b)) - -typedef char boolean; -# define false 0 -# define true 1 - -static reg_errcode_t byte_regex_compile _RE_ARGS ((const char *pattern, size_t size, - reg_syntax_t syntax, - struct re_pattern_buffer *bufp)); - -static int byte_re_match_2_internal PARAMS ((struct re_pattern_buffer *bufp, - const char *string1, int size1, - const char *string2, int size2, - int pos, - struct re_registers *regs, - int stop)); -static int byte_re_search_2 PARAMS ((struct re_pattern_buffer *bufp, - const char *string1, int size1, - const char *string2, int size2, - int startpos, int range, - struct re_registers *regs, int stop)); -static int byte_re_compile_fastmap PARAMS ((struct re_pattern_buffer *bufp)); - -#ifdef MBS_SUPPORT -static reg_errcode_t wcs_regex_compile _RE_ARGS ((const char *pattern, size_t size, - reg_syntax_t syntax, - struct re_pattern_buffer *bufp)); - - -static int wcs_re_match_2_internal PARAMS ((struct re_pattern_buffer *bufp, - const char *cstring1, int csize1, - const char *cstring2, int csize2, - int pos, - struct re_registers *regs, - int stop, - wchar_t *string1, int size1, - wchar_t *string2, int size2, - int *mbs_offset1, int *mbs_offset2)); -static int wcs_re_search_2 PARAMS ((struct re_pattern_buffer *bufp, - const char *string1, int size1, - const char *string2, int size2, - int startpos, int range, - struct re_registers *regs, int stop)); -static int wcs_re_compile_fastmap PARAMS ((struct re_pattern_buffer *bufp)); -#endif - - -/* These are the command codes that appear in compiled regular - expressions. Some opcodes are followed by argument bytes. A - command code can specify any interpretation whatsoever for its - arguments. Zero bytes may appear in the compiled regular expression. */ - -typedef enum -{ - no_op = 0, - - /* Succeed right away--no more backtracking. */ - succeed, - - /* Followed by one byte giving n, then by n literal bytes. */ - exactn, - -# ifdef MBS_SUPPORT - /* Same as exactn, but contains binary data. */ - exactn_bin, -# endif - - /* Matches any (more or less) character. */ - anychar, - - /* Matches any one char belonging to specified set. First - following byte is number of bitmap bytes. Then come bytes - for a bitmap saying which chars are in. Bits in each byte - are ordered low-bit-first. A character is in the set if its - bit is 1. A character too large to have a bit in the map is - automatically not in the set. */ - /* ifdef MBS_SUPPORT, following element is length of character - classes, length of collating symbols, length of equivalence - classes, length of character ranges, and length of characters. - Next, character class element, collating symbols elements, - equivalence class elements, range elements, and character - elements follow. - See regex_compile function. */ - charset, - - /* Same parameters as charset, but match any character that is - not one of those specified. */ - charset_not, - - /* Start remembering the text that is matched, for storing in a - register. Followed by one byte with the register number, in - the range 0 to one less than the pattern buffer's re_nsub - field. Then followed by one byte with the number of groups - inner to this one. (This last has to be part of the - start_memory only because we need it in the on_failure_jump - of re_match_2.) */ - start_memory, - - /* Stop remembering the text that is matched and store it in a - memory register. Followed by one byte with the register - number, in the range 0 to one less than `re_nsub' in the - pattern buffer, and one byte with the number of inner groups, - just like `start_memory'. (We need the number of inner - groups here because we don't have any easy way of finding the - corresponding start_memory when we're at a stop_memory.) */ - stop_memory, - - /* Match a duplicate of something remembered. Followed by one - byte containing the register number. */ - duplicate, - - /* Fail unless at beginning of line. */ - begline, - - /* Fail unless at end of line. */ - endline, - - /* Succeeds if at beginning of buffer (if emacs) or at beginning - of string to be matched (if not). */ - begbuf, - - /* Analogously, for end of buffer/string. */ - endbuf, - - /* Followed by two byte relative address to which to jump. */ - jump, - - /* Same as jump, but marks the end of an alternative. */ - jump_past_alt, - - /* Followed by two-byte relative address of place to resume at - in case of failure. */ - /* ifdef MBS_SUPPORT, the size of address is 1. */ - on_failure_jump, - - /* Like on_failure_jump, but pushes a placeholder instead of the - current string position when executed. */ - on_failure_keep_string_jump, - - /* Throw away latest failure point and then jump to following - two-byte relative address. */ - /* ifdef MBS_SUPPORT, the size of address is 1. */ - pop_failure_jump, - - /* Change to pop_failure_jump if know won't have to backtrack to - match; otherwise change to jump. This is used to jump - back to the beginning of a repeat. If what follows this jump - clearly won't match what the repeat does, such that we can be - sure that there is no use backtracking out of repetitions - already matched, then we change it to a pop_failure_jump. - Followed by two-byte address. */ - /* ifdef MBS_SUPPORT, the size of address is 1. */ - maybe_pop_jump, - - /* Jump to following two-byte address, and push a dummy failure - point. This failure point will be thrown away if an attempt - is made to use it for a failure. A `+' construct makes this - before the first repeat. Also used as an intermediary kind - of jump when compiling an alternative. */ - /* ifdef MBS_SUPPORT, the size of address is 1. */ - dummy_failure_jump, - - /* Push a dummy failure point and continue. Used at the end of - alternatives. */ - push_dummy_failure, - - /* Followed by two-byte relative address and two-byte number n. - After matching N times, jump to the address upon failure. */ - /* ifdef MBS_SUPPORT, the size of address is 1. */ - succeed_n, - - /* Followed by two-byte relative address, and two-byte number n. - Jump to the address N times, then fail. */ - /* ifdef MBS_SUPPORT, the size of address is 1. */ - jump_n, - - /* Set the following two-byte relative address to the - subsequent two-byte number. The address *includes* the two - bytes of number. */ - /* ifdef MBS_SUPPORT, the size of address is 1. */ - set_number_at, - - wordchar, /* Matches any word-constituent character. */ - notwordchar, /* Matches any char that is not a word-constituent. */ - - wordbeg, /* Succeeds if at word beginning. */ - wordend, /* Succeeds if at word end. */ - - wordbound, /* Succeeds if at a word boundary. */ - notwordbound /* Succeeds if not at a word boundary. */ - -# ifdef emacs - ,before_dot, /* Succeeds if before point. */ - at_dot, /* Succeeds if at point. */ - after_dot, /* Succeeds if after point. */ - - /* Matches any character whose syntax is specified. Followed by - a byte which contains a syntax code, e.g., Sword. */ - syntaxspec, - - /* Matches any character whose syntax is not that specified. */ - notsyntaxspec -# endif /* emacs */ -} re_opcode_t; -#endif /* not INSIDE_RECURSION */ - - - -#ifdef BYTE -# define CHAR_T char -# define UCHAR_T unsigned char -# define COMPILED_BUFFER_VAR bufp->buffer -# define OFFSET_ADDRESS_SIZE 2 -# define PREFIX(name) byte_##name -# define ARG_PREFIX(name) name -# define PUT_CHAR(c) putchar (c) -#else -# ifdef WCHAR -# define CHAR_T wchar_t -# define UCHAR_T wchar_t -# define COMPILED_BUFFER_VAR wc_buffer -# define OFFSET_ADDRESS_SIZE 1 /* the size which STORE_NUMBER macro use */ -# define CHAR_CLASS_SIZE ((__alignof__(wctype_t)+sizeof(wctype_t))/sizeof(CHAR_T)+1) -# define PREFIX(name) wcs_##name -# define ARG_PREFIX(name) c##name -/* Should we use wide stream?? */ -# define PUT_CHAR(c) printf ("%C", c); -# define TRUE 1 -# define FALSE 0 -# else -# ifdef MBS_SUPPORT -# define WCHAR -# define INSIDE_RECURSION -# include "regex.c" -# undef INSIDE_RECURSION -# endif -# define BYTE -# define INSIDE_RECURSION -# include "regex.c" -# undef INSIDE_RECURSION -# endif -#endif - -#ifdef INSIDE_RECURSION -/* Common operations on the compiled pattern. */ - -/* Store NUMBER in two contiguous bytes starting at DESTINATION. */ -/* ifdef MBS_SUPPORT, we store NUMBER in 1 element. */ - -# ifdef WCHAR -# define STORE_NUMBER(destination, number) \ - do { \ - *(destination) = (UCHAR_T)(number); \ - } while (0) -# else /* BYTE */ -# define STORE_NUMBER(destination, number) \ - do { \ - (destination)[0] = (number) & 0377; \ - (destination)[1] = (number) >> 8; \ - } while (0) -# endif /* WCHAR */ - -/* Same as STORE_NUMBER, except increment DESTINATION to - the byte after where the number is stored. Therefore, DESTINATION - must be an lvalue. */ -/* ifdef MBS_SUPPORT, we store NUMBER in 1 element. */ - -# define STORE_NUMBER_AND_INCR(destination, number) \ - do { \ - STORE_NUMBER (destination, number); \ - (destination) += OFFSET_ADDRESS_SIZE; \ - } while (0) - -/* Put into DESTINATION a number stored in two contiguous bytes starting - at SOURCE. */ -/* ifdef MBS_SUPPORT, we store NUMBER in 1 element. */ - -# ifdef WCHAR -# define EXTRACT_NUMBER(destination, source) \ - do { \ - (destination) = *(source); \ - } while (0) -# else /* BYTE */ -# define EXTRACT_NUMBER(destination, source) \ - do { \ - (destination) = *(source) & 0377; \ - (destination) += SIGN_EXTEND_CHAR (*((source) + 1)) << 8; \ - } while (0) -# endif - -# ifdef DEBUG -static void PREFIX(extract_number) _RE_ARGS ((int *dest, UCHAR_T *source)); -static void -PREFIX(extract_number) (dest, source) - int *dest; - UCHAR_T *source; -{ -# ifdef WCHAR - *dest = *source; -# else /* BYTE */ - int temp = SIGN_EXTEND_CHAR (*(source + 1)); - *dest = *source & 0377; - *dest += temp << 8; -# endif -} - -# ifndef EXTRACT_MACROS /* To debug the macros. */ -# undef EXTRACT_NUMBER -# define EXTRACT_NUMBER(dest, src) PREFIX(extract_number) (&dest, src) -# endif /* not EXTRACT_MACROS */ - -# endif /* DEBUG */ - -/* Same as EXTRACT_NUMBER, except increment SOURCE to after the number. - SOURCE must be an lvalue. */ - -# define EXTRACT_NUMBER_AND_INCR(destination, source) \ - do { \ - EXTRACT_NUMBER (destination, source); \ - (source) += OFFSET_ADDRESS_SIZE; \ - } while (0) - -# ifdef DEBUG -static void PREFIX(extract_number_and_incr) _RE_ARGS ((int *destination, - UCHAR_T **source)); -static void -PREFIX(extract_number_and_incr) (destination, source) - int *destination; - UCHAR_T **source; -{ - PREFIX(extract_number) (destination, *source); - *source += OFFSET_ADDRESS_SIZE; -} - -# ifndef EXTRACT_MACROS -# undef EXTRACT_NUMBER_AND_INCR -# define EXTRACT_NUMBER_AND_INCR(dest, src) \ - PREFIX(extract_number_and_incr) (&dest, &src) -# endif /* not EXTRACT_MACROS */ - -# endif /* DEBUG */ - - - - -/* If DEBUG is defined, Regex prints many voluminous messages about what - it is doing (if the variable `debug' is nonzero). If linked with the - main program in `iregex.c', you can enter patterns and strings - interactively. And if linked with the main program in `main.c' and - the other test files, you can run the already-written tests. */ - -# ifdef DEBUG - -# ifndef DEFINED_ONCE - -/* We use standard I/O for debugging. */ -# include <stdio.h> - -/* It is useful to test things that ``must'' be true when debugging. */ -# include <assert.h> - -static int debug; - -# define DEBUG_STATEMENT(e) e -# define DEBUG_PRINT1(x) if (debug) printf (x) -# define DEBUG_PRINT2(x1, x2) if (debug) printf (x1, x2) -# define DEBUG_PRINT3(x1, x2, x3) if (debug) printf (x1, x2, x3) -# define DEBUG_PRINT4(x1, x2, x3, x4) if (debug) printf (x1, x2, x3, x4) -# endif /* not DEFINED_ONCE */ - -# define DEBUG_PRINT_COMPILED_PATTERN(p, s, e) \ - if (debug) PREFIX(print_partial_compiled_pattern) (s, e) -# define DEBUG_PRINT_DOUBLE_STRING(w, s1, sz1, s2, sz2) \ - if (debug) PREFIX(print_double_string) (w, s1, sz1, s2, sz2) - - -/* Print the fastmap in human-readable form. */ - -# ifndef DEFINED_ONCE -void -print_fastmap (fastmap) - char *fastmap; -{ - unsigned was_a_range = 0; - unsigned i = 0; - - while (i < (1 << BYTEWIDTH)) - { - if (fastmap[i++]) - { - was_a_range = 0; - putchar (i - 1); - while (i < (1 << BYTEWIDTH) && fastmap[i]) - { - was_a_range = 1; - i++; - } - if (was_a_range) - { - printf ("-"); - putchar (i - 1); - } - } - } - putchar ('\n'); -} -# endif /* not DEFINED_ONCE */ - - -/* Print a compiled pattern string in human-readable form, starting at - the START pointer into it and ending just before the pointer END. */ - -void -PREFIX(print_partial_compiled_pattern) (start, end) - UCHAR_T *start; - UCHAR_T *end; -{ - int mcnt, mcnt2; - UCHAR_T *p1; - UCHAR_T *p = start; - UCHAR_T *pend = end; - - if (start == NULL) - { - printf ("(null)\n"); - return; - } - - /* Loop over pattern commands. */ - while (p < pend) - { -# ifdef _LIBC - printf ("%td:\t", p - start); -# else - printf ("%ld:\t", (long int) (p - start)); -# endif - - switch ((re_opcode_t) *p++) - { - case no_op: - printf ("/no_op"); - break; - - case exactn: - mcnt = *p++; - printf ("/exactn/%d", mcnt); - do - { - putchar ('/'); - PUT_CHAR (*p++); - } - while (--mcnt); - break; - -# ifdef MBS_SUPPORT - case exactn_bin: - mcnt = *p++; - printf ("/exactn_bin/%d", mcnt); - do - { - printf("/%lx", (long int) *p++); - } - while (--mcnt); - break; -# endif /* MBS_SUPPORT */ - - case start_memory: - mcnt = *p++; - printf ("/start_memory/%d/%ld", mcnt, (long int) *p++); - break; - - case stop_memory: - mcnt = *p++; - printf ("/stop_memory/%d/%ld", mcnt, (long int) *p++); - break; - - case duplicate: - printf ("/duplicate/%ld", (long int) *p++); - break; - - case anychar: - printf ("/anychar"); - break; - - case charset: - case charset_not: - { -# ifdef WCHAR - int i, length; - wchar_t *workp = p; - printf ("/charset [%s", - (re_opcode_t) *(workp - 1) == charset_not ? "^" : ""); - p += 5; - length = *workp++; /* the length of char_classes */ - for (i=0 ; i<length ; i++) - printf("[:%lx:]", (long int) *p++); - length = *workp++; /* the length of collating_symbol */ - for (i=0 ; i<length ;) - { - printf("[."); - while(*p != 0) - PUT_CHAR((i++,*p++)); - i++,p++; - printf(".]"); - } - length = *workp++; /* the length of equivalence_class */ - for (i=0 ; i<length ;) - { - printf("[="); - while(*p != 0) - PUT_CHAR((i++,*p++)); - i++,p++; - printf("=]"); - } - length = *workp++; /* the length of char_range */ - for (i=0 ; i<length ; i++) - { - wchar_t range_start = *p++; - wchar_t range_end = *p++; - printf("%C-%C", range_start, range_end); - } - length = *workp++; /* the length of char */ - for (i=0 ; i<length ; i++) - printf("%C", *p++); - putchar (']'); -# else - register int c, last = -100; - register int in_range = 0; - - printf ("/charset [%s", - (re_opcode_t) *(p - 1) == charset_not ? "^" : ""); - - assert (p + *p < pend); - - for (c = 0; c < 256; c++) - if (c / 8 < *p - && (p[1 + (c/8)] & (1 << (c % 8)))) - { - /* Are we starting a range? */ - if (last + 1 == c && ! in_range) - { - putchar ('-'); - in_range = 1; - } - /* Have we broken a range? */ - else if (last + 1 != c && in_range) - { - putchar (last); - in_range = 0; - } - - if (! in_range) - putchar (c); - - last = c; - } - - if (in_range) - putchar (last); - - putchar (']'); - - p += 1 + *p; -# endif /* WCHAR */ - } - break; - - case begline: - printf ("/begline"); - break; - - case endline: - printf ("/endline"); - break; - - case on_failure_jump: - PREFIX(extract_number_and_incr) (&mcnt, &p); -# ifdef _LIBC - printf ("/on_failure_jump to %td", p + mcnt - start); -# else - printf ("/on_failure_jump to %ld", (long int) (p + mcnt - start)); -# endif - break; - - case on_failure_keep_string_jump: - PREFIX(extract_number_and_incr) (&mcnt, &p); -# ifdef _LIBC - printf ("/on_failure_keep_string_jump to %td", p + mcnt - start); -# else - printf ("/on_failure_keep_string_jump to %ld", - (long int) (p + mcnt - start)); -# endif - break; - - case dummy_failure_jump: - PREFIX(extract_number_and_incr) (&mcnt, &p); -# ifdef _LIBC - printf ("/dummy_failure_jump to %td", p + mcnt - start); -# else - printf ("/dummy_failure_jump to %ld", (long int) (p + mcnt - start)); -# endif - break; - - case push_dummy_failure: - printf ("/push_dummy_failure"); - break; - - case maybe_pop_jump: - PREFIX(extract_number_and_incr) (&mcnt, &p); -# ifdef _LIBC - printf ("/maybe_pop_jump to %td", p + mcnt - start); -# else - printf ("/maybe_pop_jump to %ld", (long int) (p + mcnt - start)); -# endif - break; - - case pop_failure_jump: - PREFIX(extract_number_and_incr) (&mcnt, &p); -# ifdef _LIBC - printf ("/pop_failure_jump to %td", p + mcnt - start); -# else - printf ("/pop_failure_jump to %ld", (long int) (p + mcnt - start)); -# endif - break; - - case jump_past_alt: - PREFIX(extract_number_and_incr) (&mcnt, &p); -# ifdef _LIBC - printf ("/jump_past_alt to %td", p + mcnt - start); -# else - printf ("/jump_past_alt to %ld", (long int) (p + mcnt - start)); -# endif - break; - - case jump: - PREFIX(extract_number_and_incr) (&mcnt, &p); -# ifdef _LIBC - printf ("/jump to %td", p + mcnt - start); -# else - printf ("/jump to %ld", (long int) (p + mcnt - start)); -# endif - break; - - case succeed_n: - PREFIX(extract_number_and_incr) (&mcnt, &p); - p1 = p + mcnt; - PREFIX(extract_number_and_incr) (&mcnt2, &p); -# ifdef _LIBC - printf ("/succeed_n to %td, %d times", p1 - start, mcnt2); -# else - printf ("/succeed_n to %ld, %d times", - (long int) (p1 - start), mcnt2); -# endif - break; - - case jump_n: - PREFIX(extract_number_and_incr) (&mcnt, &p); - p1 = p + mcnt; - PREFIX(extract_number_and_incr) (&mcnt2, &p); - printf ("/jump_n to %d, %d times", p1 - start, mcnt2); - break; - - case set_number_at: - PREFIX(extract_number_and_incr) (&mcnt, &p); - p1 = p + mcnt; - PREFIX(extract_number_and_incr) (&mcnt2, &p); -# ifdef _LIBC - printf ("/set_number_at location %td to %d", p1 - start, mcnt2); -# else - printf ("/set_number_at location %ld to %d", - (long int) (p1 - start), mcnt2); -# endif - break; - - case wordbound: - printf ("/wordbound"); - break; - - case notwordbound: - printf ("/notwordbound"); - break; - - case wordbeg: - printf ("/wordbeg"); - break; - - case wordend: - printf ("/wordend"); - break; - -# ifdef emacs - case before_dot: - printf ("/before_dot"); - break; - - case at_dot: - printf ("/at_dot"); - break; - - case after_dot: - printf ("/after_dot"); - break; - - case syntaxspec: - printf ("/syntaxspec"); - mcnt = *p++; - printf ("/%d", mcnt); - break; - - case notsyntaxspec: - printf ("/notsyntaxspec"); - mcnt = *p++; - printf ("/%d", mcnt); - break; -# endif /* emacs */ - - case wordchar: - printf ("/wordchar"); - break; - - case notwordchar: - printf ("/notwordchar"); - break; - - case begbuf: - printf ("/begbuf"); - break; - - case endbuf: - printf ("/endbuf"); - break; - - default: - printf ("?%ld", (long int) *(p-1)); - } - - putchar ('\n'); - } - -# ifdef _LIBC - printf ("%td:\tend of pattern.\n", p - start); -# else - printf ("%ld:\tend of pattern.\n", (long int) (p - start)); -# endif -} - - -void -PREFIX(print_compiled_pattern) (bufp) - struct re_pattern_buffer *bufp; -{ - UCHAR_T *buffer = (UCHAR_T*) bufp->buffer; - - PREFIX(print_partial_compiled_pattern) (buffer, buffer - + bufp->used / sizeof(UCHAR_T)); - printf ("%ld bytes used/%ld bytes allocated.\n", - bufp->used, bufp->allocated); - - if (bufp->fastmap_accurate && bufp->fastmap) - { - printf ("fastmap: "); - print_fastmap (bufp->fastmap); - } - -# ifdef _LIBC - printf ("re_nsub: %Zd\t", bufp->re_nsub); -# else - printf ("re_nsub: %ld\t", (long int) bufp->re_nsub); -# endif - printf ("regs_alloc: %d\t", bufp->regs_allocated); - printf ("can_be_null: %d\t", bufp->can_be_null); - printf ("newline_anchor: %d\n", bufp->newline_anchor); - printf ("no_sub: %d\t", bufp->no_sub); - printf ("not_bol: %d\t", bufp->not_bol); - printf ("not_eol: %d\t", bufp->not_eol); - printf ("syntax: %lx\n", bufp->syntax); - /* Perhaps we should print the translate table? */ -} - - -void -PREFIX(print_double_string) (where, string1, size1, string2, size2) - const CHAR_T *where; - const CHAR_T *string1; - const CHAR_T *string2; - int size1; - int size2; -{ - int this_char; - - if (where == NULL) - printf ("(null)"); - else - { - int cnt; - - if (FIRST_STRING_P (where)) - { - for (this_char = where - string1; this_char < size1; this_char++) - PUT_CHAR (string1[this_char]); - - where = string2; - } - - cnt = 0; - for (this_char = where - string2; this_char < size2; this_char++) - { - PUT_CHAR (string2[this_char]); - if (++cnt > 100) - { - fputs ("...", stdout); - break; - } - } - } -} - -# ifndef DEFINED_ONCE -void -printchar (c) - int c; -{ - putc (c, stderr); -} -# endif - -# else /* not DEBUG */ - -# ifndef DEFINED_ONCE -# undef assert -# define assert(e) - -# define DEBUG_STATEMENT(e) -# define DEBUG_PRINT1(x) -# define DEBUG_PRINT2(x1, x2) -# define DEBUG_PRINT3(x1, x2, x3) -# define DEBUG_PRINT4(x1, x2, x3, x4) -# endif /* not DEFINED_ONCE */ -# define DEBUG_PRINT_COMPILED_PATTERN(p, s, e) -# define DEBUG_PRINT_DOUBLE_STRING(w, s1, sz1, s2, sz2) - -# endif /* not DEBUG */ - - - - -# ifdef WCHAR -/* This convert a multibyte string to a wide character string. - And write their correspondances to offset_buffer(see below) - and write whether each wchar_t is binary data to is_binary. - This assume invalid multibyte sequences as binary data. - We assume offset_buffer and is_binary is already allocated - enough space. */ - -static size_t convert_mbs_to_wcs (CHAR_T *dest, const unsigned char* src, - size_t len, int *offset_buffer, - char *is_binary); -static size_t -convert_mbs_to_wcs (dest, src, len, offset_buffer, is_binary) - CHAR_T *dest; - const unsigned char* src; - size_t len; /* the length of multibyte string. */ - - /* It hold correspondances between src(char string) and - dest(wchar_t string) for optimization. - e.g. src = "xxxyzz" - dest = {'X', 'Y', 'Z'} - (each "xxx", "y" and "zz" represent one multibyte character - corresponding to 'X', 'Y' and 'Z'.) - offset_buffer = {0, 0+3("xxx"), 0+3+1("y"), 0+3+1+2("zz")} - = {0, 3, 4, 6} - */ - int *offset_buffer; - char *is_binary; -{ - wchar_t *pdest = dest; - const unsigned char *psrc = src; - size_t wc_count = 0; - - mbstate_t mbs; - int i, consumed; - size_t mb_remain = len; - size_t mb_count = 0; - - /* Initialize the conversion state. */ - memset (&mbs, 0, sizeof (mbstate_t)); - - offset_buffer[0] = 0; - for( ; mb_remain > 0 ; ++wc_count, ++pdest, mb_remain -= consumed, - psrc += consumed) - { -#ifdef _LIBC - consumed = __mbrtowc (pdest, psrc, mb_remain, &mbs); -#else - consumed = mbrtowc (pdest, psrc, mb_remain, &mbs); -#endif - - if (consumed <= 0) - /* failed to convert. maybe src contains binary data. - So we consume 1 byte manualy. */ - { - *pdest = *psrc; - consumed = 1; - is_binary[wc_count] = TRUE; - } - else - is_binary[wc_count] = FALSE; - /* In sjis encoding, we use yen sign as escape character in - place of reverse solidus. So we convert 0x5c(yen sign in - sjis) to not 0xa5(yen sign in UCS2) but 0x5c(reverse - solidus in UCS2). */ - if (consumed == 1 && (int) *psrc == 0x5c && (int) *pdest == 0xa5) - *pdest = (wchar_t) *psrc; - - offset_buffer[wc_count + 1] = mb_count += consumed; - } - - /* Fill remain of the buffer with sentinel. */ - for (i = wc_count + 1 ; i <= len ; i++) - offset_buffer[i] = mb_count + 1; - - return wc_count; -} - -# endif /* WCHAR */ - -#else /* not INSIDE_RECURSION */ - -/* Set by `re_set_syntax' to the current regexp syntax to recognize. Can - also be assigned to arbitrarily: each pattern buffer stores its own - syntax, so it can be changed between regex compilations. */ -/* This has no initializer because initialized variables in Emacs - become read-only after dumping. */ -reg_syntax_t re_syntax_options; - - -/* Specify the precise syntax of regexps for compilation. This provides - for compatibility for various utilities which historically have - different, incompatible syntaxes. - - The argument SYNTAX is a bit mask comprised of the various bits - defined in regex.h. We return the old syntax. */ - -reg_syntax_t -re_set_syntax (syntax) - reg_syntax_t syntax; -{ - reg_syntax_t ret = re_syntax_options; - - re_syntax_options = syntax; -# ifdef DEBUG - if (syntax & RE_DEBUG) - debug = 1; - else if (debug) /* was on but now is not */ - debug = 0; -# endif /* DEBUG */ - return ret; -} -# ifdef _LIBC -weak_alias (__re_set_syntax, re_set_syntax) -# endif - - -/* This table gives an error message for each of the error codes listed - in regex.h. Obviously the order here has to be same as there. - POSIX doesn't require that we do anything for REG_NOERROR, - but why not be nice? */ - -static const char re_error_msgid[] = - { -# define REG_NOERROR_IDX 0 - gettext_noop ("Success") /* REG_NOERROR */ - "\0" -# define REG_NOMATCH_IDX (REG_NOERROR_IDX + sizeof "Success") - gettext_noop ("No match") /* REG_NOMATCH */ - "\0" -# define REG_BADPAT_IDX (REG_NOMATCH_IDX + sizeof "No match") - gettext_noop ("Invalid regular expression") /* REG_BADPAT */ - "\0" -# define REG_ECOLLATE_IDX (REG_BADPAT_IDX + sizeof "Invalid regular expression") - gettext_noop ("Invalid collation character") /* REG_ECOLLATE */ - "\0" -# define REG_ECTYPE_IDX (REG_ECOLLATE_IDX + sizeof "Invalid collation character") - gettext_noop ("Invalid character class name") /* REG_ECTYPE */ - "\0" -# define REG_EESCAPE_IDX (REG_ECTYPE_IDX + sizeof "Invalid character class name") - gettext_noop ("Trailing backslash") /* REG_EESCAPE */ - "\0" -# define REG_ESUBREG_IDX (REG_EESCAPE_IDX + sizeof "Trailing backslash") - gettext_noop ("Invalid back reference") /* REG_ESUBREG */ - "\0" -# define REG_EBRACK_IDX (REG_ESUBREG_IDX + sizeof "Invalid back reference") - gettext_noop ("Unmatched [ or [^") /* REG_EBRACK */ - "\0" -# define REG_EPAREN_IDX (REG_EBRACK_IDX + sizeof "Unmatched [ or [^") - gettext_noop ("Unmatched ( or \\(") /* REG_EPAREN */ - "\0" -# define REG_EBRACE_IDX (REG_EPAREN_IDX + sizeof "Unmatched ( or \\(") - gettext_noop ("Unmatched \\{") /* REG_EBRACE */ - "\0" -# define REG_BADBR_IDX (REG_EBRACE_IDX + sizeof "Unmatched \\{") - gettext_noop ("Invalid content of \\{\\}") /* REG_BADBR */ - "\0" -# define REG_ERANGE_IDX (REG_BADBR_IDX + sizeof "Invalid content of \\{\\}") - gettext_noop ("Invalid range end") /* REG_ERANGE */ - "\0" -# define REG_ESPACE_IDX (REG_ERANGE_IDX + sizeof "Invalid range end") - gettext_noop ("Memory exhausted") /* REG_ESPACE */ - "\0" -# define REG_BADRPT_IDX (REG_ESPACE_IDX + sizeof "Memory exhausted") - gettext_noop ("Invalid preceding regular expression") /* REG_BADRPT */ - "\0" -# define REG_EEND_IDX (REG_BADRPT_IDX + sizeof "Invalid preceding regular expression") - gettext_noop ("Premature end of regular expression") /* REG_EEND */ - "\0" -# define REG_ESIZE_IDX (REG_EEND_IDX + sizeof "Premature end of regular expression") - gettext_noop ("Regular expression too big") /* REG_ESIZE */ - "\0" -# define REG_ERPAREN_IDX (REG_ESIZE_IDX + sizeof "Regular expression too big") - gettext_noop ("Unmatched ) or \\)") /* REG_ERPAREN */ - }; - -static const size_t re_error_msgid_idx[] = - { - REG_NOERROR_IDX, - REG_NOMATCH_IDX, - REG_BADPAT_IDX, - REG_ECOLLATE_IDX, - REG_ECTYPE_IDX, - REG_EESCAPE_IDX, - REG_ESUBREG_IDX, - REG_EBRACK_IDX, - REG_EPAREN_IDX, - REG_EBRACE_IDX, - REG_BADBR_IDX, - REG_ERANGE_IDX, - REG_ESPACE_IDX, - REG_BADRPT_IDX, - REG_EEND_IDX, - REG_ESIZE_IDX, - REG_ERPAREN_IDX - }; - - -#endif /* INSIDE_RECURSION */ - -#ifndef DEFINED_ONCE -/* Avoiding alloca during matching, to placate r_alloc. */ - -/* Define MATCH_MAY_ALLOCATE unless we need to make sure that the - searching and matching functions should not call alloca. On some - systems, alloca is implemented in terms of malloc, and if we're - using the relocating allocator routines, then malloc could cause a - relocation, which might (if the strings being searched are in the - ralloc heap) shift the data out from underneath the regexp - routines. - - Here's another reason to avoid allocation: Emacs - processes input from X in a signal handler; processing X input may - call malloc; if input arrives while a matching routine is calling - malloc, then we're scrod. But Emacs can't just block input while - calling matching routines; then we don't notice interrupts when - they come in. So, Emacs blocks input around all regexp calls - except the matching calls, which it leaves unprotected, in the - faith that they will not malloc. */ - -/* Normally, this is fine. */ -# define MATCH_MAY_ALLOCATE - -/* When using GNU C, we are not REALLY using the C alloca, no matter - what config.h may say. So don't take precautions for it. */ -# ifdef __GNUC__ -# undef C_ALLOCA -# endif - -/* The match routines may not allocate if (1) they would do it with malloc - and (2) it's not safe for them to use malloc. - Note that if REL_ALLOC is defined, matching would not use malloc for the - failure stack, but we would still use it for the register vectors; - so REL_ALLOC should not affect this. */ -# if (defined C_ALLOCA || defined REGEX_MALLOC) && defined emacs -# undef MATCH_MAY_ALLOCATE -# endif -#endif /* not DEFINED_ONCE */ - - -#ifdef INSIDE_RECURSION -/* Failure stack declarations and macros; both re_compile_fastmap and - re_match_2 use a failure stack. These have to be macros because of - REGEX_ALLOCATE_STACK. */ - - -/* Number of failure points for which to initially allocate space - when matching. If this number is exceeded, we allocate more - space, so it is not a hard limit. */ -# ifndef INIT_FAILURE_ALLOC -# define INIT_FAILURE_ALLOC 5 -# endif - -/* Roughly the maximum number of failure points on the stack. Would be - exactly that if always used MAX_FAILURE_ITEMS items each time we failed. - This is a variable only so users of regex can assign to it; we never - change it ourselves. */ - -# ifdef INT_IS_16BIT - -# ifndef DEFINED_ONCE -# if defined MATCH_MAY_ALLOCATE -/* 4400 was enough to cause a crash on Alpha OSF/1, - whose default stack limit is 2mb. */ -long int re_max_failures = 4000; -# else -long int re_max_failures = 2000; -# endif -# endif - -union PREFIX(fail_stack_elt) -{ - UCHAR_T *pointer; - long int integer; -}; - -typedef union PREFIX(fail_stack_elt) PREFIX(fail_stack_elt_t); - -typedef struct -{ - PREFIX(fail_stack_elt_t) *stack; - unsigned long int size; - unsigned long int avail; /* Offset of next open position. */ -} PREFIX(fail_stack_type); - -# else /* not INT_IS_16BIT */ - -# ifndef DEFINED_ONCE -# if defined MATCH_MAY_ALLOCATE -/* 4400 was enough to cause a crash on Alpha OSF/1, - whose default stack limit is 2mb. */ -int re_max_failures = 4000; -# else -int re_max_failures = 2000; -# endif -# endif - -union PREFIX(fail_stack_elt) -{ - UCHAR_T *pointer; - int integer; -}; - -typedef union PREFIX(fail_stack_elt) PREFIX(fail_stack_elt_t); - -typedef struct -{ - PREFIX(fail_stack_elt_t) *stack; - unsigned size; - unsigned avail; /* Offset of next open position. */ -} PREFIX(fail_stack_type); - -# endif /* INT_IS_16BIT */ - -# ifndef DEFINED_ONCE -# define FAIL_STACK_EMPTY() (fail_stack.avail == 0) -# define FAIL_STACK_PTR_EMPTY() (fail_stack_ptr->avail == 0) -# define FAIL_STACK_FULL() (fail_stack.avail == fail_stack.size) -# endif - - -/* Define macros to initialize and free the failure stack. - Do `return -2' if the alloc fails. */ - -# ifdef MATCH_MAY_ALLOCATE -# define INIT_FAIL_STACK() \ - do { \ - fail_stack.stack = (PREFIX(fail_stack_elt_t) *) \ - REGEX_ALLOCATE_STACK (INIT_FAILURE_ALLOC * sizeof (PREFIX(fail_stack_elt_t))); \ - \ - if (fail_stack.stack == NULL) \ - return -2; \ - \ - fail_stack.size = INIT_FAILURE_ALLOC; \ - fail_stack.avail = 0; \ - } while (0) - -# define RESET_FAIL_STACK() REGEX_FREE_STACK (fail_stack.stack) -# else -# define INIT_FAIL_STACK() \ - do { \ - fail_stack.avail = 0; \ - } while (0) - -# define RESET_FAIL_STACK() -# endif - - -/* Double the size of FAIL_STACK, up to approximately `re_max_failures' items. - - Return 1 if succeeds, and 0 if either ran out of memory - allocating space for it or it was already too large. - - REGEX_REALLOCATE_STACK requires `destination' be declared. */ - -# define DOUBLE_FAIL_STACK(fail_stack) \ - ((fail_stack).size > (unsigned) (re_max_failures * MAX_FAILURE_ITEMS) \ - ? 0 \ - : ((fail_stack).stack = (PREFIX(fail_stack_elt_t) *) \ - REGEX_REALLOCATE_STACK ((fail_stack).stack, \ - (fail_stack).size * sizeof (PREFIX(fail_stack_elt_t)), \ - ((fail_stack).size << 1) * sizeof (PREFIX(fail_stack_elt_t))),\ - \ - (fail_stack).stack == NULL \ - ? 0 \ - : ((fail_stack).size <<= 1, \ - 1))) - - -/* Push pointer POINTER on FAIL_STACK. - Return 1 if was able to do so and 0 if ran out of memory allocating - space to do so. */ -# define PUSH_PATTERN_OP(POINTER, FAIL_STACK) \ - ((FAIL_STACK_FULL () \ - && !DOUBLE_FAIL_STACK (FAIL_STACK)) \ - ? 0 \ - : ((FAIL_STACK).stack[(FAIL_STACK).avail++].pointer = POINTER, \ - 1)) - -/* Push a pointer value onto the failure stack. - Assumes the variable `fail_stack'. Probably should only - be called from within `PUSH_FAILURE_POINT'. */ -# define PUSH_FAILURE_POINTER(item) \ - fail_stack.stack[fail_stack.avail++].pointer = (UCHAR_T *) (item) - -/* This pushes an integer-valued item onto the failure stack. - Assumes the variable `fail_stack'. Probably should only - be called from within `PUSH_FAILURE_POINT'. */ -# define PUSH_FAILURE_INT(item) \ - fail_stack.stack[fail_stack.avail++].integer = (item) - -/* Push a fail_stack_elt_t value onto the failure stack. - Assumes the variable `fail_stack'. Probably should only - be called from within `PUSH_FAILURE_POINT'. */ -# define PUSH_FAILURE_ELT(item) \ - fail_stack.stack[fail_stack.avail++] = (item) - -/* These three POP... operations complement the three PUSH... operations. - All assume that `fail_stack' is nonempty. */ -# define POP_FAILURE_POINTER() fail_stack.stack[--fail_stack.avail].pointer -# define POP_FAILURE_INT() fail_stack.stack[--fail_stack.avail].integer -# define POP_FAILURE_ELT() fail_stack.stack[--fail_stack.avail] - -/* Used to omit pushing failure point id's when we're not debugging. */ -# ifdef DEBUG -# define DEBUG_PUSH PUSH_FAILURE_INT -# define DEBUG_POP(item_addr) *(item_addr) = POP_FAILURE_INT () -# else -# define DEBUG_PUSH(item) -# define DEBUG_POP(item_addr) -# endif - - -/* Push the information about the state we will need - if we ever fail back to it. - - Requires variables fail_stack, regstart, regend, reg_info, and - num_regs_pushed be declared. DOUBLE_FAIL_STACK requires `destination' - be declared. - - Does `return FAILURE_CODE' if runs out of memory. */ - -# define PUSH_FAILURE_POINT(pattern_place, string_place, failure_code) \ - do { \ - char *destination; \ - /* Must be int, so when we don't save any registers, the arithmetic \ - of 0 + -1 isn't done as unsigned. */ \ - /* Can't be int, since there is not a shred of a guarantee that int \ - is wide enough to hold a value of something to which pointer can \ - be assigned */ \ - active_reg_t this_reg; \ - \ - DEBUG_STATEMENT (failure_id++); \ - DEBUG_STATEMENT (nfailure_points_pushed++); \ - DEBUG_PRINT2 ("\nPUSH_FAILURE_POINT #%u:\n", failure_id); \ - DEBUG_PRINT2 (" Before push, next avail: %d\n", (fail_stack).avail);\ - DEBUG_PRINT2 (" size: %d\n", (fail_stack).size);\ - \ - DEBUG_PRINT2 (" slots needed: %ld\n", NUM_FAILURE_ITEMS); \ - DEBUG_PRINT2 (" available: %d\n", REMAINING_AVAIL_SLOTS); \ - \ - /* Ensure we have enough space allocated for what we will push. */ \ - while (REMAINING_AVAIL_SLOTS < NUM_FAILURE_ITEMS) \ - { \ - if (!DOUBLE_FAIL_STACK (fail_stack)) \ - return failure_code; \ - \ - DEBUG_PRINT2 ("\n Doubled stack; size now: %d\n", \ - (fail_stack).size); \ - DEBUG_PRINT2 (" slots available: %d\n", REMAINING_AVAIL_SLOTS);\ - } \ - \ - /* Push the info, starting with the registers. */ \ - DEBUG_PRINT1 ("\n"); \ - \ - if (1) \ - for (this_reg = lowest_active_reg; this_reg <= highest_active_reg; \ - this_reg++) \ - { \ - DEBUG_PRINT2 (" Pushing reg: %lu\n", this_reg); \ - DEBUG_STATEMENT (num_regs_pushed++); \ - \ - DEBUG_PRINT2 (" start: %p\n", regstart[this_reg]); \ - PUSH_FAILURE_POINTER (regstart[this_reg]); \ - \ - DEBUG_PRINT2 (" end: %p\n", regend[this_reg]); \ - PUSH_FAILURE_POINTER (regend[this_reg]); \ - \ - DEBUG_PRINT2 (" info: %p\n ", \ - reg_info[this_reg].word.pointer); \ - DEBUG_PRINT2 (" match_null=%d", \ - REG_MATCH_NULL_STRING_P (reg_info[this_reg])); \ - DEBUG_PRINT2 (" active=%d", IS_ACTIVE (reg_info[this_reg])); \ - DEBUG_PRINT2 (" matched_something=%d", \ - MATCHED_SOMETHING (reg_info[this_reg])); \ - DEBUG_PRINT2 (" ever_matched=%d", \ - EVER_MATCHED_SOMETHING (reg_info[this_reg])); \ - DEBUG_PRINT1 ("\n"); \ - PUSH_FAILURE_ELT (reg_info[this_reg].word); \ - } \ - \ - DEBUG_PRINT2 (" Pushing low active reg: %ld\n", lowest_active_reg);\ - PUSH_FAILURE_INT (lowest_active_reg); \ - \ - DEBUG_PRINT2 (" Pushing high active reg: %ld\n", highest_active_reg);\ - PUSH_FAILURE_INT (highest_active_reg); \ - \ - DEBUG_PRINT2 (" Pushing pattern %p:\n", pattern_place); \ - DEBUG_PRINT_COMPILED_PATTERN (bufp, pattern_place, pend); \ - PUSH_FAILURE_POINTER (pattern_place); \ - \ - DEBUG_PRINT2 (" Pushing string %p: `", string_place); \ - DEBUG_PRINT_DOUBLE_STRING (string_place, string1, size1, string2, \ - size2); \ - DEBUG_PRINT1 ("'\n"); \ - PUSH_FAILURE_POINTER (string_place); \ - \ - DEBUG_PRINT2 (" Pushing failure id: %u\n", failure_id); \ - DEBUG_PUSH (failure_id); \ - } while (0) - -# ifndef DEFINED_ONCE -/* This is the number of items that are pushed and popped on the stack - for each register. */ -# define NUM_REG_ITEMS 3 - -/* Individual items aside from the registers. */ -# ifdef DEBUG -# define NUM_NONREG_ITEMS 5 /* Includes failure point id. */ -# else -# define NUM_NONREG_ITEMS 4 -# endif - -/* We push at most this many items on the stack. */ -/* We used to use (num_regs - 1), which is the number of registers - this regexp will save; but that was changed to 5 - to avoid stack overflow for a regexp with lots of parens. */ -# define MAX_FAILURE_ITEMS (5 * NUM_REG_ITEMS + NUM_NONREG_ITEMS) - -/* We actually push this many items. */ -# define NUM_FAILURE_ITEMS \ - (((0 \ - ? 0 : highest_active_reg - lowest_active_reg + 1) \ - * NUM_REG_ITEMS) \ - + NUM_NONREG_ITEMS) - -/* How many items can still be added to the stack without overflowing it. */ -# define REMAINING_AVAIL_SLOTS ((fail_stack).size - (fail_stack).avail) -# endif /* not DEFINED_ONCE */ - - -/* Pops what PUSH_FAIL_STACK pushes. - - We restore into the parameters, all of which should be lvalues: - STR -- the saved data position. - PAT -- the saved pattern position. - LOW_REG, HIGH_REG -- the highest and lowest active registers. - REGSTART, REGEND -- arrays of string positions. - REG_INFO -- array of information about each subexpression. - - Also assumes the variables `fail_stack' and (if debugging), `bufp', - `pend', `string1', `size1', `string2', and `size2'. */ -# define POP_FAILURE_POINT(str, pat, low_reg, high_reg, regstart, regend, reg_info)\ -{ \ - DEBUG_STATEMENT (unsigned failure_id;) \ - active_reg_t this_reg; \ - const UCHAR_T *string_temp; \ - \ - assert (!FAIL_STACK_EMPTY ()); \ - \ - /* Remove failure points and point to how many regs pushed. */ \ - DEBUG_PRINT1 ("POP_FAILURE_POINT:\n"); \ - DEBUG_PRINT2 (" Before pop, next avail: %d\n", fail_stack.avail); \ - DEBUG_PRINT2 (" size: %d\n", fail_stack.size); \ - \ - assert (fail_stack.avail >= NUM_NONREG_ITEMS); \ - \ - DEBUG_POP (&failure_id); \ - DEBUG_PRINT2 (" Popping failure id: %u\n", failure_id); \ - \ - /* If the saved string location is NULL, it came from an \ - on_failure_keep_string_jump opcode, and we want to throw away the \ - saved NULL, thus retaining our current position in the string. */ \ - string_temp = POP_FAILURE_POINTER (); \ - if (string_temp != NULL) \ - str = (const CHAR_T *) string_temp; \ - \ - DEBUG_PRINT2 (" Popping string %p: `", str); \ - DEBUG_PRINT_DOUBLE_STRING (str, string1, size1, string2, size2); \ - DEBUG_PRINT1 ("'\n"); \ - \ - pat = (UCHAR_T *) POP_FAILURE_POINTER (); \ - DEBUG_PRINT2 (" Popping pattern %p:\n", pat); \ - DEBUG_PRINT_COMPILED_PATTERN (bufp, pat, pend); \ - \ - /* Restore register info. */ \ - high_reg = (active_reg_t) POP_FAILURE_INT (); \ - DEBUG_PRINT2 (" Popping high active reg: %ld\n", high_reg); \ - \ - low_reg = (active_reg_t) POP_FAILURE_INT (); \ - DEBUG_PRINT2 (" Popping low active reg: %ld\n", low_reg); \ - \ - if (1) \ - for (this_reg = high_reg; this_reg >= low_reg; this_reg--) \ - { \ - DEBUG_PRINT2 (" Popping reg: %ld\n", this_reg); \ - \ - reg_info[this_reg].word = POP_FAILURE_ELT (); \ - DEBUG_PRINT2 (" info: %p\n", \ - reg_info[this_reg].word.pointer); \ - \ - regend[this_reg] = (const CHAR_T *) POP_FAILURE_POINTER (); \ - DEBUG_PRINT2 (" end: %p\n", regend[this_reg]); \ - \ - regstart[this_reg] = (const CHAR_T *) POP_FAILURE_POINTER (); \ - DEBUG_PRINT2 (" start: %p\n", regstart[this_reg]); \ - } \ - else \ - { \ - for (this_reg = highest_active_reg; this_reg > high_reg; this_reg--) \ - { \ - reg_info[this_reg].word.integer = 0; \ - regend[this_reg] = 0; \ - regstart[this_reg] = 0; \ - } \ - highest_active_reg = high_reg; \ - } \ - \ - set_regs_matched_done = 0; \ - DEBUG_STATEMENT (nfailure_points_popped++); \ -} /* POP_FAILURE_POINT */ - - -/* Structure for per-register (a.k.a. per-group) information. - Other register information, such as the - starting and ending positions (which are addresses), and the list of - inner groups (which is a bits list) are maintained in separate - variables. - - We are making a (strictly speaking) nonportable assumption here: that - the compiler will pack our bit fields into something that fits into - the type of `word', i.e., is something that fits into one item on the - failure stack. */ - - -/* Declarations and macros for re_match_2. */ - -typedef union -{ - PREFIX(fail_stack_elt_t) word; - struct - { - /* This field is one if this group can match the empty string, - zero if not. If not yet determined, `MATCH_NULL_UNSET_VALUE'. */ -# define MATCH_NULL_UNSET_VALUE 3 - unsigned match_null_string_p : 2; - unsigned is_active : 1; - unsigned matched_something : 1; - unsigned ever_matched_something : 1; - } bits; -} PREFIX(register_info_type); - -# ifndef DEFINED_ONCE -# define REG_MATCH_NULL_STRING_P(R) ((R).bits.match_null_string_p) -# define IS_ACTIVE(R) ((R).bits.is_active) -# define MATCHED_SOMETHING(R) ((R).bits.matched_something) -# define EVER_MATCHED_SOMETHING(R) ((R).bits.ever_matched_something) - - -/* Call this when have matched a real character; it sets `matched' flags - for the subexpressions which we are currently inside. Also records - that those subexprs have matched. */ -# define SET_REGS_MATCHED() \ - do \ - { \ - if (!set_regs_matched_done) \ - { \ - active_reg_t r; \ - set_regs_matched_done = 1; \ - for (r = lowest_active_reg; r <= highest_active_reg; r++) \ - { \ - MATCHED_SOMETHING (reg_info[r]) \ - = EVER_MATCHED_SOMETHING (reg_info[r]) \ - = 1; \ - } \ - } \ - } \ - while (0) -# endif /* not DEFINED_ONCE */ - -/* Registers are set to a sentinel when they haven't yet matched. */ -static CHAR_T PREFIX(reg_unset_dummy); -# define REG_UNSET_VALUE (&PREFIX(reg_unset_dummy)) -# define REG_UNSET(e) ((e) == REG_UNSET_VALUE) - -/* Subroutine declarations and macros for regex_compile. */ -static void PREFIX(store_op1) _RE_ARGS ((re_opcode_t op, UCHAR_T *loc, int arg)); -static void PREFIX(store_op2) _RE_ARGS ((re_opcode_t op, UCHAR_T *loc, - int arg1, int arg2)); -static void PREFIX(insert_op1) _RE_ARGS ((re_opcode_t op, UCHAR_T *loc, - int arg, UCHAR_T *end)); -static void PREFIX(insert_op2) _RE_ARGS ((re_opcode_t op, UCHAR_T *loc, - int arg1, int arg2, UCHAR_T *end)); -static boolean PREFIX(at_begline_loc_p) _RE_ARGS ((const CHAR_T *pattern, - const CHAR_T *p, - reg_syntax_t syntax)); -static boolean PREFIX(at_endline_loc_p) _RE_ARGS ((const CHAR_T *p, - const CHAR_T *pend, - reg_syntax_t syntax)); -# ifdef WCHAR -static reg_errcode_t wcs_compile_range _RE_ARGS ((CHAR_T range_start, - const CHAR_T **p_ptr, - const CHAR_T *pend, - char *translate, - reg_syntax_t syntax, - UCHAR_T *b, - CHAR_T *char_set)); -static void insert_space _RE_ARGS ((int num, CHAR_T *loc, CHAR_T *end)); -# else /* BYTE */ -static reg_errcode_t byte_compile_range _RE_ARGS ((unsigned int range_start, - const char **p_ptr, - const char *pend, - char *translate, - reg_syntax_t syntax, - unsigned char *b)); -# endif /* WCHAR */ - -/* Fetch the next character in the uncompiled pattern---translating it - if necessary. Also cast from a signed character in the constant - string passed to us by the user to an unsigned char that we can use - as an array index (in, e.g., `translate'). */ -/* ifdef MBS_SUPPORT, we translate only if character <= 0xff, - because it is impossible to allocate 4GB array for some encodings - which have 4 byte character_set like UCS4. */ -# ifndef PATFETCH -# ifdef WCHAR -# define PATFETCH(c) \ - do {if (p == pend) return REG_EEND; \ - c = (UCHAR_T) *p++; \ - if (translate && (c <= 0xff)) c = (UCHAR_T) translate[c]; \ - } while (0) -# else /* BYTE */ -# define PATFETCH(c) \ - do {if (p == pend) return REG_EEND; \ - c = (unsigned char) *p++; \ - if (translate) c = (unsigned char) translate[c]; \ - } while (0) -# endif /* WCHAR */ -# endif - -/* Fetch the next character in the uncompiled pattern, with no - translation. */ -# define PATFETCH_RAW(c) \ - do {if (p == pend) return REG_EEND; \ - c = (UCHAR_T) *p++; \ - } while (0) - -/* Go backwards one character in the pattern. */ -# define PATUNFETCH p-- - - -/* If `translate' is non-null, return translate[D], else just D. We - cast the subscript to translate because some data is declared as - `char *', to avoid warnings when a string constant is passed. But - when we use a character as a subscript we must make it unsigned. */ -/* ifdef MBS_SUPPORT, we translate only if character <= 0xff, - because it is impossible to allocate 4GB array for some encodings - which have 4 byte character_set like UCS4. */ - -# ifndef TRANSLATE -# ifdef WCHAR -# define TRANSLATE(d) \ - ((translate && ((UCHAR_T) (d)) <= 0xff) \ - ? (char) translate[(unsigned char) (d)] : (d)) -# else /* BYTE */ -# define TRANSLATE(d) \ - (translate ? (char) translate[(unsigned char) (d)] : (d)) -# endif /* WCHAR */ -# endif - - -/* Macros for outputting the compiled pattern into `buffer'. */ - -/* If the buffer isn't allocated when it comes in, use this. */ -# define INIT_BUF_SIZE (32 * sizeof(UCHAR_T)) - -/* Make sure we have at least N more bytes of space in buffer. */ -# ifdef WCHAR -# define GET_BUFFER_SPACE(n) \ - while (((unsigned long)b - (unsigned long)COMPILED_BUFFER_VAR \ - + (n)*sizeof(CHAR_T)) > bufp->allocated) \ - EXTEND_BUFFER () -# else /* BYTE */ -# define GET_BUFFER_SPACE(n) \ - while ((unsigned long) (b - bufp->buffer + (n)) > bufp->allocated) \ - EXTEND_BUFFER () -# endif /* WCHAR */ - -/* Make sure we have one more byte of buffer space and then add C to it. */ -# define BUF_PUSH(c) \ - do { \ - GET_BUFFER_SPACE (1); \ - *b++ = (UCHAR_T) (c); \ - } while (0) - - -/* Ensure we have two more bytes of buffer space and then append C1 and C2. */ -# define BUF_PUSH_2(c1, c2) \ - do { \ - GET_BUFFER_SPACE (2); \ - *b++ = (UCHAR_T) (c1); \ - *b++ = (UCHAR_T) (c2); \ - } while (0) - - -/* As with BUF_PUSH_2, except for three bytes. */ -# define BUF_PUSH_3(c1, c2, c3) \ - do { \ - GET_BUFFER_SPACE (3); \ - *b++ = (UCHAR_T) (c1); \ - *b++ = (UCHAR_T) (c2); \ - *b++ = (UCHAR_T) (c3); \ - } while (0) - -/* Store a jump with opcode OP at LOC to location TO. We store a - relative address offset by the three bytes the jump itself occupies. */ -# define STORE_JUMP(op, loc, to) \ - PREFIX(store_op1) (op, loc, (int) ((to) - (loc) - (1 + OFFSET_ADDRESS_SIZE))) - -/* Likewise, for a two-argument jump. */ -# define STORE_JUMP2(op, loc, to, arg) \ - PREFIX(store_op2) (op, loc, (int) ((to) - (loc) - (1 + OFFSET_ADDRESS_SIZE)), arg) - -/* Like `STORE_JUMP', but for inserting. Assume `b' is the buffer end. */ -# define INSERT_JUMP(op, loc, to) \ - PREFIX(insert_op1) (op, loc, (int) ((to) - (loc) - (1 + OFFSET_ADDRESS_SIZE)), b) - -/* Like `STORE_JUMP2', but for inserting. Assume `b' is the buffer end. */ -# define INSERT_JUMP2(op, loc, to, arg) \ - PREFIX(insert_op2) (op, loc, (int) ((to) - (loc) - (1 + OFFSET_ADDRESS_SIZE)),\ - arg, b) - -/* This is not an arbitrary limit: the arguments which represent offsets - into the pattern are two bytes long. So if 2^16 bytes turns out to - be too small, many things would have to change. */ -/* Any other compiler which, like MSC, has allocation limit below 2^16 - bytes will have to use approach similar to what was done below for - MSC and drop MAX_BUF_SIZE a bit. Otherwise you may end up - reallocating to 0 bytes. Such thing is not going to work too well. - You have been warned!! */ -# ifndef DEFINED_ONCE -# if defined _MSC_VER && !defined WIN32 -/* Microsoft C 16-bit versions limit malloc to approx 65512 bytes. - The REALLOC define eliminates a flurry of conversion warnings, - but is not required. */ -# define MAX_BUF_SIZE 65500L -# define REALLOC(p,s) realloc ((p), (size_t) (s)) -# else -# define MAX_BUF_SIZE (1L << 16) -# define REALLOC(p,s) realloc ((p), (s)) -# endif - -/* Extend the buffer by twice its current size via realloc and - reset the pointers that pointed into the old block to point to the - correct places in the new one. If extending the buffer results in it - being larger than MAX_BUF_SIZE, then flag memory exhausted. */ -# if __BOUNDED_POINTERS__ -# define SET_HIGH_BOUND(P) (__ptrhigh (P) = __ptrlow (P) + bufp->allocated) -# define MOVE_BUFFER_POINTER(P) \ - (__ptrlow (P) += incr, SET_HIGH_BOUND (P), __ptrvalue (P) += incr) -# define ELSE_EXTEND_BUFFER_HIGH_BOUND \ - else \ - { \ - SET_HIGH_BOUND (b); \ - SET_HIGH_BOUND (begalt); \ - if (fixup_alt_jump) \ - SET_HIGH_BOUND (fixup_alt_jump); \ - if (laststart) \ - SET_HIGH_BOUND (laststart); \ - if (pending_exact) \ - SET_HIGH_BOUND (pending_exact); \ - } -# else -# define MOVE_BUFFER_POINTER(P) (P) += incr -# define ELSE_EXTEND_BUFFER_HIGH_BOUND -# endif -# endif /* not DEFINED_ONCE */ - -# ifdef WCHAR -# define EXTEND_BUFFER() \ - do { \ - UCHAR_T *old_buffer = COMPILED_BUFFER_VAR; \ - int wchar_count; \ - if (bufp->allocated + sizeof(UCHAR_T) > MAX_BUF_SIZE) \ - return REG_ESIZE; \ - bufp->allocated <<= 1; \ - if (bufp->allocated > MAX_BUF_SIZE) \ - bufp->allocated = MAX_BUF_SIZE; \ - /* How many characters the new buffer can have? */ \ - wchar_count = bufp->allocated / sizeof(UCHAR_T); \ - if (wchar_count == 0) wchar_count = 1; \ - /* Truncate the buffer to CHAR_T align. */ \ - bufp->allocated = wchar_count * sizeof(UCHAR_T); \ - RETALLOC (COMPILED_BUFFER_VAR, wchar_count, UCHAR_T); \ - bufp->buffer = (char*)COMPILED_BUFFER_VAR; \ - if (COMPILED_BUFFER_VAR == NULL) \ - return REG_ESPACE; \ - /* If the buffer moved, move all the pointers into it. */ \ - if (old_buffer != COMPILED_BUFFER_VAR) \ - { \ - int incr = COMPILED_BUFFER_VAR - old_buffer; \ - MOVE_BUFFER_POINTER (b); \ - MOVE_BUFFER_POINTER (begalt); \ - if (fixup_alt_jump) \ - MOVE_BUFFER_POINTER (fixup_alt_jump); \ - if (laststart) \ - MOVE_BUFFER_POINTER (laststart); \ - if (pending_exact) \ - MOVE_BUFFER_POINTER (pending_exact); \ - } \ - ELSE_EXTEND_BUFFER_HIGH_BOUND \ - } while (0) -# else /* BYTE */ -# define EXTEND_BUFFER() \ - do { \ - UCHAR_T *old_buffer = COMPILED_BUFFER_VAR; \ - if (bufp->allocated == MAX_BUF_SIZE) \ - return REG_ESIZE; \ - bufp->allocated <<= 1; \ - if (bufp->allocated > MAX_BUF_SIZE) \ - bufp->allocated = MAX_BUF_SIZE; \ - bufp->buffer = (UCHAR_T *) REALLOC (COMPILED_BUFFER_VAR, \ - bufp->allocated); \ - if (COMPILED_BUFFER_VAR == NULL) \ - return REG_ESPACE; \ - /* If the buffer moved, move all the pointers into it. */ \ - if (old_buffer != COMPILED_BUFFER_VAR) \ - { \ - int incr = COMPILED_BUFFER_VAR - old_buffer; \ - MOVE_BUFFER_POINTER (b); \ - MOVE_BUFFER_POINTER (begalt); \ - if (fixup_alt_jump) \ - MOVE_BUFFER_POINTER (fixup_alt_jump); \ - if (laststart) \ - MOVE_BUFFER_POINTER (laststart); \ - if (pending_exact) \ - MOVE_BUFFER_POINTER (pending_exact); \ - } \ - ELSE_EXTEND_BUFFER_HIGH_BOUND \ - } while (0) -# endif /* WCHAR */ - -# ifndef DEFINED_ONCE -/* Since we have one byte reserved for the register number argument to - {start,stop}_memory, the maximum number of groups we can report - things about is what fits in that byte. */ -# define MAX_REGNUM 255 - -/* But patterns can have more than `MAX_REGNUM' registers. We just - ignore the excess. */ -typedef unsigned regnum_t; - - -/* Macros for the compile stack. */ - -/* Since offsets can go either forwards or backwards, this type needs to - be able to hold values from -(MAX_BUF_SIZE - 1) to MAX_BUF_SIZE - 1. */ -/* int may be not enough when sizeof(int) == 2. */ -typedef long pattern_offset_t; - -typedef struct -{ - pattern_offset_t begalt_offset; - pattern_offset_t fixup_alt_jump; - pattern_offset_t inner_group_offset; - pattern_offset_t laststart_offset; - regnum_t regnum; -} compile_stack_elt_t; - - -typedef struct -{ - compile_stack_elt_t *stack; - unsigned size; - unsigned avail; /* Offset of next open position. */ -} compile_stack_type; - - -# define INIT_COMPILE_STACK_SIZE 32 - -# define COMPILE_STACK_EMPTY (compile_stack.avail == 0) -# define COMPILE_STACK_FULL (compile_stack.avail == compile_stack.size) - -/* The next available element. */ -# define COMPILE_STACK_TOP (compile_stack.stack[compile_stack.avail]) - -# endif /* not DEFINED_ONCE */ - -/* Set the bit for character C in a list. */ -# ifndef DEFINED_ONCE -# define SET_LIST_BIT(c) \ - (b[((unsigned char) (c)) / BYTEWIDTH] \ - |= 1 << (((unsigned char) c) % BYTEWIDTH)) -# endif /* DEFINED_ONCE */ - -/* Get the next unsigned number in the uncompiled pattern. */ -# define GET_UNSIGNED_NUMBER(num) \ - { \ - while (p != pend) \ - { \ - PATFETCH (c); \ - if (c < '0' || c > '9') \ - break; \ - if (num <= RE_DUP_MAX) \ - { \ - if (num < 0) \ - num = 0; \ - num = num * 10 + c - '0'; \ - } \ - } \ - } - -# ifndef DEFINED_ONCE -# if defined _LIBC || WIDE_CHAR_SUPPORT -/* The GNU C library provides support for user-defined character classes - and the functions from ISO C amendement 1. */ -# ifdef CHARCLASS_NAME_MAX -# define CHAR_CLASS_MAX_LENGTH CHARCLASS_NAME_MAX -# else -/* This shouldn't happen but some implementation might still have this - problem. Use a reasonable default value. */ -# define CHAR_CLASS_MAX_LENGTH 256 -# endif - -# ifdef _LIBC -# define IS_CHAR_CLASS(string) __wctype (string) -# else -# define IS_CHAR_CLASS(string) wctype (string) -# endif -# else -# define CHAR_CLASS_MAX_LENGTH 6 /* Namely, `xdigit'. */ - -# define IS_CHAR_CLASS(string) \ - (STREQ (string, "alpha") || STREQ (string, "upper") \ - || STREQ (string, "lower") || STREQ (string, "digit") \ - || STREQ (string, "alnum") || STREQ (string, "xdigit") \ - || STREQ (string, "space") || STREQ (string, "print") \ - || STREQ (string, "punct") || STREQ (string, "graph") \ - || STREQ (string, "cntrl") || STREQ (string, "blank")) -# endif -# endif /* DEFINED_ONCE */ - - -# ifndef MATCH_MAY_ALLOCATE - -/* If we cannot allocate large objects within re_match_2_internal, - we make the fail stack and register vectors global. - The fail stack, we grow to the maximum size when a regexp - is compiled. - The register vectors, we adjust in size each time we - compile a regexp, according to the number of registers it needs. */ - -static PREFIX(fail_stack_type) fail_stack; - -/* Size with which the following vectors are currently allocated. - That is so we can make them bigger as needed, - but never make them smaller. */ -# ifdef DEFINED_ONCE -static int regs_allocated_size; - -static const char ** regstart, ** regend; -static const char ** old_regstart, ** old_regend; -static const char **best_regstart, **best_regend; -static const char **reg_dummy; -# endif /* DEFINED_ONCE */ - -static PREFIX(register_info_type) *PREFIX(reg_info); -static PREFIX(register_info_type) *PREFIX(reg_info_dummy); - -/* Make the register vectors big enough for NUM_REGS registers, - but don't make them smaller. */ - -static void -PREFIX(regex_grow_registers) (num_regs) - int num_regs; -{ - if (num_regs > regs_allocated_size) - { - RETALLOC_IF (regstart, num_regs, const char *); - RETALLOC_IF (regend, num_regs, const char *); - RETALLOC_IF (old_regstart, num_regs, const char *); - RETALLOC_IF (old_regend, num_regs, const char *); - RETALLOC_IF (best_regstart, num_regs, const char *); - RETALLOC_IF (best_regend, num_regs, const char *); - RETALLOC_IF (PREFIX(reg_info), num_regs, PREFIX(register_info_type)); - RETALLOC_IF (reg_dummy, num_regs, const char *); - RETALLOC_IF (PREFIX(reg_info_dummy), num_regs, PREFIX(register_info_type)); - - regs_allocated_size = num_regs; - } -} - -# endif /* not MATCH_MAY_ALLOCATE */ - - -# ifndef DEFINED_ONCE -static boolean group_in_compile_stack _RE_ARGS ((compile_stack_type - compile_stack, - regnum_t regnum)); -# endif /* not DEFINED_ONCE */ - -/* `regex_compile' compiles PATTERN (of length SIZE) according to SYNTAX. - Returns one of error codes defined in `regex.h', or zero for success. - - Assumes the `allocated' (and perhaps `buffer') and `translate' - fields are set in BUFP on entry. - - If it succeeds, results are put in BUFP (if it returns an error, the - contents of BUFP are undefined): - `buffer' is the compiled pattern; - `syntax' is set to SYNTAX; - `used' is set to the length of the compiled pattern; - `fastmap_accurate' is zero; - `re_nsub' is the number of subexpressions in PATTERN; - `not_bol' and `not_eol' are zero; - - The `fastmap' and `newline_anchor' fields are neither - examined nor set. */ - -/* Return, freeing storage we allocated. */ -# ifdef WCHAR -# define FREE_STACK_RETURN(value) \ - return (free(pattern), free(mbs_offset), free(is_binary), free (compile_stack.stack), value) -# else -# define FREE_STACK_RETURN(value) \ - return (free (compile_stack.stack), value) -# endif /* WCHAR */ - -static reg_errcode_t -PREFIX(regex_compile) (ARG_PREFIX(pattern), ARG_PREFIX(size), syntax, bufp) - const char *ARG_PREFIX(pattern); - size_t ARG_PREFIX(size); - reg_syntax_t syntax; - struct re_pattern_buffer *bufp; -{ - /* We fetch characters from PATTERN here. Even though PATTERN is - `char *' (i.e., signed), we declare these variables as unsigned, so - they can be reliably used as array indices. */ - register UCHAR_T c, c1; - -#ifdef WCHAR - /* A temporary space to keep wchar_t pattern and compiled pattern. */ - CHAR_T *pattern, *COMPILED_BUFFER_VAR; - size_t size; - /* offset buffer for optimization. See convert_mbs_to_wc. */ - int *mbs_offset = NULL; - /* It hold whether each wchar_t is binary data or not. */ - char *is_binary = NULL; - /* A flag whether exactn is handling binary data or not. */ - char is_exactn_bin = FALSE; -#endif /* WCHAR */ - - /* A random temporary spot in PATTERN. */ - const CHAR_T *p1; - - /* Points to the end of the buffer, where we should append. */ - register UCHAR_T *b; - - /* Keeps track of unclosed groups. */ - compile_stack_type compile_stack; - - /* Points to the current (ending) position in the pattern. */ -#ifdef WCHAR - const CHAR_T *p; - const CHAR_T *pend; -#else /* BYTE */ - const CHAR_T *p = pattern; - const CHAR_T *pend = pattern + size; -#endif /* WCHAR */ - - /* How to translate the characters in the pattern. */ - RE_TRANSLATE_TYPE translate = bufp->translate; - - /* Address of the count-byte of the most recently inserted `exactn' - command. This makes it possible to tell if a new exact-match - character can be added to that command or if the character requires - a new `exactn' command. */ - UCHAR_T *pending_exact = 0; - - /* Address of start of the most recently finished expression. - This tells, e.g., postfix * where to find the start of its - operand. Reset at the beginning of groups and alternatives. */ - UCHAR_T *laststart = 0; - - /* Address of beginning of regexp, or inside of last group. */ - UCHAR_T *begalt; - - /* Address of the place where a forward jump should go to the end of - the containing expression. Each alternative of an `or' -- except the - last -- ends with a forward jump of this sort. */ - UCHAR_T *fixup_alt_jump = 0; - - /* Counts open-groups as they are encountered. Remembered for the - matching close-group on the compile stack, so the same register - number is put in the stop_memory as the start_memory. */ - regnum_t regnum = 0; - -#ifdef WCHAR - /* Initialize the wchar_t PATTERN and offset_buffer. */ - p = pend = pattern = TALLOC(csize + 1, CHAR_T); - mbs_offset = TALLOC(csize + 1, int); - is_binary = TALLOC(csize + 1, char); - if (pattern == NULL || mbs_offset == NULL || is_binary == NULL) - { - free(pattern); - free(mbs_offset); - free(is_binary); - return REG_ESPACE; - } - pattern[csize] = L'\0'; /* sentinel */ - size = convert_mbs_to_wcs(pattern, cpattern, csize, mbs_offset, is_binary); - pend = p + size; - if (size < 0) - { - free(pattern); - free(mbs_offset); - free(is_binary); - return REG_BADPAT; - } -#endif - -#ifdef DEBUG - DEBUG_PRINT1 ("\nCompiling pattern: "); - if (debug) - { - unsigned debug_count; - - for (debug_count = 0; debug_count < size; debug_count++) - PUT_CHAR (pattern[debug_count]); - putchar ('\n'); - } -#endif /* DEBUG */ - - /* Initialize the compile stack. */ - compile_stack.stack = TALLOC (INIT_COMPILE_STACK_SIZE, compile_stack_elt_t); - if (compile_stack.stack == NULL) - { -#ifdef WCHAR - free(pattern); - free(mbs_offset); - free(is_binary); -#endif - return REG_ESPACE; - } - - compile_stack.size = INIT_COMPILE_STACK_SIZE; - compile_stack.avail = 0; - - /* Initialize the pattern buffer. */ - bufp->syntax = syntax; - bufp->fastmap_accurate = 0; - bufp->not_bol = bufp->not_eol = 0; - - /* Set `used' to zero, so that if we return an error, the pattern - printer (for debugging) will think there's no pattern. We reset it - at the end. */ - bufp->used = 0; - - /* Always count groups, whether or not bufp->no_sub is set. */ - bufp->re_nsub = 0; - -#if !defined emacs && !defined SYNTAX_TABLE - /* Initialize the syntax table. */ - init_syntax_once (); -#endif - - if (bufp->allocated == 0) - { - if (bufp->buffer) - { /* If zero allocated, but buffer is non-null, try to realloc - enough space. This loses if buffer's address is bogus, but - that is the user's responsibility. */ -#ifdef WCHAR - /* Free bufp->buffer and allocate an array for wchar_t pattern - buffer. */ - free(bufp->buffer); - COMPILED_BUFFER_VAR = TALLOC (INIT_BUF_SIZE/sizeof(UCHAR_T), - UCHAR_T); -#else - RETALLOC (COMPILED_BUFFER_VAR, INIT_BUF_SIZE, UCHAR_T); -#endif /* WCHAR */ - } - else - { /* Caller did not allocate a buffer. Do it for them. */ - COMPILED_BUFFER_VAR = TALLOC (INIT_BUF_SIZE / sizeof(UCHAR_T), - UCHAR_T); - } - - if (!COMPILED_BUFFER_VAR) FREE_STACK_RETURN (REG_ESPACE); -#ifdef WCHAR - bufp->buffer = (char*)COMPILED_BUFFER_VAR; -#endif /* WCHAR */ - bufp->allocated = INIT_BUF_SIZE; - } -#ifdef WCHAR - else - COMPILED_BUFFER_VAR = (UCHAR_T*) bufp->buffer; -#endif - - begalt = b = COMPILED_BUFFER_VAR; - - /* Loop through the uncompiled pattern until we're at the end. */ - while (p != pend) - { - PATFETCH (c); - - switch (c) - { - case '^': - { - if ( /* If at start of pattern, it's an operator. */ - p == pattern + 1 - /* If context independent, it's an operator. */ - || syntax & RE_CONTEXT_INDEP_ANCHORS - /* Otherwise, depends on what's come before. */ - || PREFIX(at_begline_loc_p) (pattern, p, syntax)) - BUF_PUSH (begline); - else - goto normal_char; - } - break; - - - case '$': - { - if ( /* If at end of pattern, it's an operator. */ - p == pend - /* If context independent, it's an operator. */ - || syntax & RE_CONTEXT_INDEP_ANCHORS - /* Otherwise, depends on what's next. */ - || PREFIX(at_endline_loc_p) (p, pend, syntax)) - BUF_PUSH (endline); - else - goto normal_char; - } - break; - - - case '+': - case '?': - if ((syntax & RE_BK_PLUS_QM) - || (syntax & RE_LIMITED_OPS)) - goto normal_char; - handle_plus: - case '*': - /* If there is no previous pattern... */ - if (!laststart) - { - if (syntax & RE_CONTEXT_INVALID_OPS) - FREE_STACK_RETURN (REG_BADRPT); - else if (!(syntax & RE_CONTEXT_INDEP_OPS)) - goto normal_char; - } - - { - /* Are we optimizing this jump? */ - boolean keep_string_p = false; - - /* 1 means zero (many) matches is allowed. */ - char zero_times_ok = 0, many_times_ok = 0; - - /* If there is a sequence of repetition chars, collapse it - down to just one (the right one). We can't combine - interval operators with these because of, e.g., `a{2}*', - which should only match an even number of `a's. */ - - for (;;) - { - zero_times_ok |= c != '+'; - many_times_ok |= c != '?'; - - if (p == pend) - break; - - PATFETCH (c); - - if (c == '*' - || (!(syntax & RE_BK_PLUS_QM) && (c == '+' || c == '?'))) - ; - - else if (syntax & RE_BK_PLUS_QM && c == '\\') - { - if (p == pend) FREE_STACK_RETURN (REG_EESCAPE); - - PATFETCH (c1); - if (!(c1 == '+' || c1 == '?')) - { - PATUNFETCH; - PATUNFETCH; - break; - } - - c = c1; - } - else - { - PATUNFETCH; - break; - } - - /* If we get here, we found another repeat character. */ - } - - /* Star, etc. applied to an empty pattern is equivalent - to an empty pattern. */ - if (!laststart) - break; - - /* Now we know whether or not zero matches is allowed - and also whether or not two or more matches is allowed. */ - if (many_times_ok) - { /* More than one repetition is allowed, so put in at the - end a backward relative jump from `b' to before the next - jump we're going to put in below (which jumps from - laststart to after this jump). - - But if we are at the `*' in the exact sequence `.*\n', - insert an unconditional jump backwards to the ., - instead of the beginning of the loop. This way we only - push a failure point once, instead of every time - through the loop. */ - assert (p - 1 > pattern); - - /* Allocate the space for the jump. */ - GET_BUFFER_SPACE (1 + OFFSET_ADDRESS_SIZE); - - /* We know we are not at the first character of the pattern, - because laststart was nonzero. And we've already - incremented `p', by the way, to be the character after - the `*'. Do we have to do something analogous here - for null bytes, because of RE_DOT_NOT_NULL? */ - if (TRANSLATE (*(p - 2)) == TRANSLATE ('.') - && zero_times_ok - && p < pend && TRANSLATE (*p) == TRANSLATE ('\n') - && !(syntax & RE_DOT_NEWLINE)) - { /* We have .*\n. */ - STORE_JUMP (jump, b, laststart); - keep_string_p = true; - } - else - /* Anything else. */ - STORE_JUMP (maybe_pop_jump, b, laststart - - (1 + OFFSET_ADDRESS_SIZE)); - - /* We've added more stuff to the buffer. */ - b += 1 + OFFSET_ADDRESS_SIZE; - } - - /* On failure, jump from laststart to b + 3, which will be the - end of the buffer after this jump is inserted. */ - /* ifdef WCHAR, 'b + 1 + OFFSET_ADDRESS_SIZE' instead of - 'b + 3'. */ - GET_BUFFER_SPACE (1 + OFFSET_ADDRESS_SIZE); - INSERT_JUMP (keep_string_p ? on_failure_keep_string_jump - : on_failure_jump, - laststart, b + 1 + OFFSET_ADDRESS_SIZE); - pending_exact = 0; - b += 1 + OFFSET_ADDRESS_SIZE; - - if (!zero_times_ok) - { - /* At least one repetition is required, so insert a - `dummy_failure_jump' before the initial - `on_failure_jump' instruction of the loop. This - effects a skip over that instruction the first time - we hit that loop. */ - GET_BUFFER_SPACE (1 + OFFSET_ADDRESS_SIZE); - INSERT_JUMP (dummy_failure_jump, laststart, laststart + - 2 + 2 * OFFSET_ADDRESS_SIZE); - b += 1 + OFFSET_ADDRESS_SIZE; - } - } - break; - - - case '.': - laststart = b; - BUF_PUSH (anychar); - break; - - - case '[': - { - boolean had_char_class = false; -#ifdef WCHAR - CHAR_T range_start = 0xffffffff; -#else - unsigned int range_start = 0xffffffff; -#endif - if (p == pend) FREE_STACK_RETURN (REG_EBRACK); - -#ifdef WCHAR - /* We assume a charset(_not) structure as a wchar_t array. - charset[0] = (re_opcode_t) charset(_not) - charset[1] = l (= length of char_classes) - charset[2] = m (= length of collating_symbols) - charset[3] = n (= length of equivalence_classes) - charset[4] = o (= length of char_ranges) - charset[5] = p (= length of chars) - - charset[6] = char_class (wctype_t) - charset[6+CHAR_CLASS_SIZE] = char_class (wctype_t) - ... - charset[l+5] = char_class (wctype_t) - - charset[l+6] = collating_symbol (wchar_t) - ... - charset[l+m+5] = collating_symbol (wchar_t) - ifdef _LIBC we use the index if - _NL_COLLATE_SYMB_EXTRAMB instead of - wchar_t string. - - charset[l+m+6] = equivalence_classes (wchar_t) - ... - charset[l+m+n+5] = equivalence_classes (wchar_t) - ifdef _LIBC we use the index in - _NL_COLLATE_WEIGHT instead of - wchar_t string. - - charset[l+m+n+6] = range_start - charset[l+m+n+7] = range_end - ... - charset[l+m+n+2o+4] = range_start - charset[l+m+n+2o+5] = range_end - ifdef _LIBC we use the value looked up - in _NL_COLLATE_COLLSEQ instead of - wchar_t character. - - charset[l+m+n+2o+6] = char - ... - charset[l+m+n+2o+p+5] = char - - */ - - /* We need at least 6 spaces: the opcode, the length of - char_classes, the length of collating_symbols, the length of - equivalence_classes, the length of char_ranges, the length of - chars. */ - GET_BUFFER_SPACE (6); - - /* Save b as laststart. And We use laststart as the pointer - to the first element of the charset here. - In other words, laststart[i] indicates charset[i]. */ - laststart = b; - - /* We test `*p == '^' twice, instead of using an if - statement, so we only need one BUF_PUSH. */ - BUF_PUSH (*p == '^' ? charset_not : charset); - if (*p == '^') - p++; - - /* Push the length of char_classes, the length of - collating_symbols, the length of equivalence_classes, the - length of char_ranges and the length of chars. */ - BUF_PUSH_3 (0, 0, 0); - BUF_PUSH_2 (0, 0); - - /* Remember the first position in the bracket expression. */ - p1 = p; - - /* charset_not matches newline according to a syntax bit. */ - if ((re_opcode_t) b[-6] == charset_not - && (syntax & RE_HAT_LISTS_NOT_NEWLINE)) - { - BUF_PUSH('\n'); - laststart[5]++; /* Update the length of characters */ - } - - /* Read in characters and ranges, setting map bits. */ - for (;;) - { - if (p == pend) FREE_STACK_RETURN (REG_EBRACK); - - PATFETCH (c); - - /* \ might escape characters inside [...] and [^...]. */ - if ((syntax & RE_BACKSLASH_ESCAPE_IN_LISTS) && c == '\\') - { - if (p == pend) FREE_STACK_RETURN (REG_EESCAPE); - - PATFETCH (c1); - BUF_PUSH(c1); - laststart[5]++; /* Update the length of chars */ - range_start = c1; - continue; - } - - /* Could be the end of the bracket expression. If it's - not (i.e., when the bracket expression is `[]' so - far), the ']' character bit gets set way below. */ - if (c == ']' && p != p1 + 1) - break; - - /* Look ahead to see if it's a range when the last thing - was a character class. */ - if (had_char_class && c == '-' && *p != ']') - FREE_STACK_RETURN (REG_ERANGE); - - /* Look ahead to see if it's a range when the last thing - was a character: if this is a hyphen not at the - beginning or the end of a list, then it's the range - operator. */ - if (c == '-' - && !(p - 2 >= pattern && p[-2] == '[') - && !(p - 3 >= pattern && p[-3] == '[' && p[-2] == '^') - && *p != ']') - { - reg_errcode_t ret; - /* Allocate the space for range_start and range_end. */ - GET_BUFFER_SPACE (2); - /* Update the pointer to indicate end of buffer. */ - b += 2; - ret = wcs_compile_range (range_start, &p, pend, translate, - syntax, b, laststart); - if (ret != REG_NOERROR) FREE_STACK_RETURN (ret); - range_start = 0xffffffff; - } - else if (p[0] == '-' && p[1] != ']') - { /* This handles ranges made up of characters only. */ - reg_errcode_t ret; - - /* Move past the `-'. */ - PATFETCH (c1); - /* Allocate the space for range_start and range_end. */ - GET_BUFFER_SPACE (2); - /* Update the pointer to indicate end of buffer. */ - b += 2; - ret = wcs_compile_range (c, &p, pend, translate, syntax, b, - laststart); - if (ret != REG_NOERROR) FREE_STACK_RETURN (ret); - range_start = 0xffffffff; - } - - /* See if we're at the beginning of a possible character - class. */ - else if (syntax & RE_CHAR_CLASSES && c == '[' && *p == ':') - { /* Leave room for the null. */ - char str[CHAR_CLASS_MAX_LENGTH + 1]; - - PATFETCH (c); - c1 = 0; - - /* If pattern is `[[:'. */ - if (p == pend) FREE_STACK_RETURN (REG_EBRACK); - - for (;;) - { - PATFETCH (c); - if ((c == ':' && *p == ']') || p == pend) - break; - if (c1 < CHAR_CLASS_MAX_LENGTH) - str[c1++] = c; - else - /* This is in any case an invalid class name. */ - str[0] = '\0'; - } - str[c1] = '\0'; - - /* If isn't a word bracketed by `[:' and `:]': - undo the ending character, the letters, and leave - the leading `:' and `[' (but store them as character). */ - if (c == ':' && *p == ']') - { - wctype_t wt; - uintptr_t alignedp; - - /* Query the character class as wctype_t. */ - wt = IS_CHAR_CLASS (str); - if (wt == 0) - FREE_STACK_RETURN (REG_ECTYPE); - - /* Throw away the ] at the end of the character - class. */ - PATFETCH (c); - - if (p == pend) FREE_STACK_RETURN (REG_EBRACK); - - /* Allocate the space for character class. */ - GET_BUFFER_SPACE(CHAR_CLASS_SIZE); - /* Update the pointer to indicate end of buffer. */ - b += CHAR_CLASS_SIZE; - /* Move data which follow character classes - not to violate the data. */ - insert_space(CHAR_CLASS_SIZE, - laststart + 6 + laststart[1], - b - 1); - alignedp = ((uintptr_t)(laststart + 6 + laststart[1]) - + __alignof__(wctype_t) - 1) - & ~(uintptr_t)(__alignof__(wctype_t) - 1); - /* Store the character class. */ - *((wctype_t*)alignedp) = wt; - /* Update length of char_classes */ - laststart[1] += CHAR_CLASS_SIZE; - - had_char_class = true; - } - else - { - c1++; - while (c1--) - PATUNFETCH; - BUF_PUSH ('['); - BUF_PUSH (':'); - laststart[5] += 2; /* Update the length of characters */ - range_start = ':'; - had_char_class = false; - } - } - else if (syntax & RE_CHAR_CLASSES && c == '[' && (*p == '=' - || *p == '.')) - { - CHAR_T str[128]; /* Should be large enough. */ - CHAR_T delim = *p; /* '=' or '.' */ -# ifdef _LIBC - uint32_t nrules = - _NL_CURRENT_WORD (LC_COLLATE, _NL_COLLATE_NRULES); -# endif - PATFETCH (c); - c1 = 0; - - /* If pattern is `[[=' or '[[.'. */ - if (p == pend) FREE_STACK_RETURN (REG_EBRACK); - - for (;;) - { - PATFETCH (c); - if ((c == delim && *p == ']') || p == pend) - break; - if (c1 < sizeof (str) - 1) - str[c1++] = c; - else - /* This is in any case an invalid class name. */ - str[0] = '\0'; - } - str[c1] = '\0'; - - if (c == delim && *p == ']' && str[0] != '\0') - { - unsigned int i, offset; - /* If we have no collation data we use the default - collation in which each character is in a class - by itself. It also means that ASCII is the - character set and therefore we cannot have character - with more than one byte in the multibyte - representation. */ - - /* If not defined _LIBC, we push the name and - `\0' for the sake of matching performance. */ - int datasize = c1 + 1; - -# ifdef _LIBC - int32_t idx = 0; - if (nrules == 0) -# endif - { - if (c1 != 1) - FREE_STACK_RETURN (REG_ECOLLATE); - } -# ifdef _LIBC - else - { - const int32_t *table; - const int32_t *weights; - const int32_t *extra; - const int32_t *indirect; - wint_t *cp; - - /* This #include defines a local function! */ -# include <locale/weightwc.h> - - if(delim == '=') - { - /* We push the index for equivalence class. */ - cp = (wint_t*)str; - - table = (const int32_t *) - _NL_CURRENT (LC_COLLATE, - _NL_COLLATE_TABLEWC); - weights = (const int32_t *) - _NL_CURRENT (LC_COLLATE, - _NL_COLLATE_WEIGHTWC); - extra = (const int32_t *) - _NL_CURRENT (LC_COLLATE, - _NL_COLLATE_EXTRAWC); - indirect = (const int32_t *) - _NL_CURRENT (LC_COLLATE, - _NL_COLLATE_INDIRECTWC); - - idx = findidx ((const wint_t**)&cp); - if (idx == 0 || cp < (wint_t*) str + c1) - /* This is no valid character. */ - FREE_STACK_RETURN (REG_ECOLLATE); - - str[0] = (wchar_t)idx; - } - else /* delim == '.' */ - { - /* We push collation sequence value - for collating symbol. */ - int32_t table_size; - const int32_t *symb_table; - const unsigned char *extra; - int32_t idx; - int32_t elem; - int32_t second; - int32_t hash; - char char_str[c1]; - - /* We have to convert the name to a single-byte - string. This is possible since the names - consist of ASCII characters and the internal - representation is UCS4. */ - for (i = 0; i < c1; ++i) - char_str[i] = str[i]; - - table_size = - _NL_CURRENT_WORD (LC_COLLATE, - _NL_COLLATE_SYMB_HASH_SIZEMB); - symb_table = (const int32_t *) - _NL_CURRENT (LC_COLLATE, - _NL_COLLATE_SYMB_TABLEMB); - extra = (const unsigned char *) - _NL_CURRENT (LC_COLLATE, - _NL_COLLATE_SYMB_EXTRAMB); - - /* Locate the character in the hashing table. */ - hash = elem_hash (char_str, c1); - - idx = 0; - elem = hash % table_size; - second = hash % (table_size - 2); - while (symb_table[2 * elem] != 0) - { - /* First compare the hashing value. */ - if (symb_table[2 * elem] == hash - && c1 == extra[symb_table[2 * elem + 1]] - && memcmp (char_str, - &extra[symb_table[2 * elem + 1] - + 1], c1) == 0) - { - /* Yep, this is the entry. */ - idx = symb_table[2 * elem + 1]; - idx += 1 + extra[idx]; - break; - } - - /* Next entry. */ - elem += second; - } - - if (symb_table[2 * elem] != 0) - { - /* Compute the index of the byte sequence - in the table. */ - idx += 1 + extra[idx]; - /* Adjust for the alignment. */ - idx = (idx + 3) & ~3; - - str[0] = (wchar_t) idx + 4; - } - else if (symb_table[2 * elem] == 0 && c1 == 1) - { - /* No valid character. Match it as a - single byte character. */ - had_char_class = false; - BUF_PUSH(str[0]); - /* Update the length of characters */ - laststart[5]++; - range_start = str[0]; - - /* Throw away the ] at the end of the - collating symbol. */ - PATFETCH (c); - /* exit from the switch block. */ - continue; - } - else - FREE_STACK_RETURN (REG_ECOLLATE); - } - datasize = 1; - } -# endif - /* Throw away the ] at the end of the equivalence - class (or collating symbol). */ - PATFETCH (c); - - /* Allocate the space for the equivalence class - (or collating symbol) (and '\0' if needed). */ - GET_BUFFER_SPACE(datasize); - /* Update the pointer to indicate end of buffer. */ - b += datasize; - - if (delim == '=') - { /* equivalence class */ - /* Calculate the offset of char_ranges, - which is next to equivalence_classes. */ - offset = laststart[1] + laststart[2] - + laststart[3] +6; - /* Insert space. */ - insert_space(datasize, laststart + offset, b - 1); - - /* Write the equivalence_class and \0. */ - for (i = 0 ; i < datasize ; i++) - laststart[offset + i] = str[i]; - - /* Update the length of equivalence_classes. */ - laststart[3] += datasize; - had_char_class = true; - } - else /* delim == '.' */ - { /* collating symbol */ - /* Calculate the offset of the equivalence_classes, - which is next to collating_symbols. */ - offset = laststart[1] + laststart[2] + 6; - /* Insert space and write the collationg_symbol - and \0. */ - insert_space(datasize, laststart + offset, b-1); - for (i = 0 ; i < datasize ; i++) - laststart[offset + i] = str[i]; - - /* In re_match_2_internal if range_start < -1, we - assume -range_start is the offset of the - collating symbol which is specified as - the character of the range start. So we assign - -(laststart[1] + laststart[2] + 6) to - range_start. */ - range_start = -(laststart[1] + laststart[2] + 6); - /* Update the length of collating_symbol. */ - laststart[2] += datasize; - had_char_class = false; - } - } - else - { - c1++; - while (c1--) - PATUNFETCH; - BUF_PUSH ('['); - BUF_PUSH (delim); - laststart[5] += 2; /* Update the length of characters */ - range_start = delim; - had_char_class = false; - } - } - else - { - had_char_class = false; - BUF_PUSH(c); - laststart[5]++; /* Update the length of characters */ - range_start = c; - } - } - -#else /* BYTE */ - /* Ensure that we have enough space to push a charset: the - opcode, the length count, and the bitset; 34 bytes in all. */ - GET_BUFFER_SPACE (34); - - laststart = b; - - /* We test `*p == '^' twice, instead of using an if - statement, so we only need one BUF_PUSH. */ - BUF_PUSH (*p == '^' ? charset_not : charset); - if (*p == '^') - p++; - - /* Remember the first position in the bracket expression. */ - p1 = p; - - /* Push the number of bytes in the bitmap. */ - BUF_PUSH ((1 << BYTEWIDTH) / BYTEWIDTH); - - /* Clear the whole map. */ - bzero (b, (1 << BYTEWIDTH) / BYTEWIDTH); - - /* charset_not matches newline according to a syntax bit. */ - if ((re_opcode_t) b[-2] == charset_not - && (syntax & RE_HAT_LISTS_NOT_NEWLINE)) - SET_LIST_BIT ('\n'); - - /* Read in characters and ranges, setting map bits. */ - for (;;) - { - if (p == pend) FREE_STACK_RETURN (REG_EBRACK); - - PATFETCH (c); - - /* \ might escape characters inside [...] and [^...]. */ - if ((syntax & RE_BACKSLASH_ESCAPE_IN_LISTS) && c == '\\') - { - if (p == pend) FREE_STACK_RETURN (REG_EESCAPE); - - PATFETCH (c1); - SET_LIST_BIT (c1); - range_start = c1; - continue; - } - - /* Could be the end of the bracket expression. If it's - not (i.e., when the bracket expression is `[]' so - far), the ']' character bit gets set way below. */ - if (c == ']' && p != p1 + 1) - break; - - /* Look ahead to see if it's a range when the last thing - was a character class. */ - if (had_char_class && c == '-' && *p != ']') - FREE_STACK_RETURN (REG_ERANGE); - - /* Look ahead to see if it's a range when the last thing - was a character: if this is a hyphen not at the - beginning or the end of a list, then it's the range - operator. */ - if (c == '-' - && !(p - 2 >= pattern && p[-2] == '[') - && !(p - 3 >= pattern && p[-3] == '[' && p[-2] == '^') - && *p != ']') - { - reg_errcode_t ret - = byte_compile_range (range_start, &p, pend, translate, - syntax, b); - if (ret != REG_NOERROR) FREE_STACK_RETURN (ret); - range_start = 0xffffffff; - } - - else if (p[0] == '-' && p[1] != ']') - { /* This handles ranges made up of characters only. */ - reg_errcode_t ret; - - /* Move past the `-'. */ - PATFETCH (c1); - - ret = byte_compile_range (c, &p, pend, translate, syntax, b); - if (ret != REG_NOERROR) FREE_STACK_RETURN (ret); - range_start = 0xffffffff; - } - - /* See if we're at the beginning of a possible character - class. */ - - else if (syntax & RE_CHAR_CLASSES && c == '[' && *p == ':') - { /* Leave room for the null. */ - char str[CHAR_CLASS_MAX_LENGTH + 1]; - - PATFETCH (c); - c1 = 0; - - /* If pattern is `[[:'. */ - if (p == pend) FREE_STACK_RETURN (REG_EBRACK); - - for (;;) - { - PATFETCH (c); - if ((c == ':' && *p == ']') || p == pend) - break; - if (c1 < CHAR_CLASS_MAX_LENGTH) - str[c1++] = c; - else - /* This is in any case an invalid class name. */ - str[0] = '\0'; - } - str[c1] = '\0'; - - /* If isn't a word bracketed by `[:' and `:]': - undo the ending character, the letters, and leave - the leading `:' and `[' (but set bits for them). */ - if (c == ':' && *p == ']') - { -# if defined _LIBC || WIDE_CHAR_SUPPORT - boolean is_lower = STREQ (str, "lower"); - boolean is_upper = STREQ (str, "upper"); - wctype_t wt; - int ch; - - wt = IS_CHAR_CLASS (str); - if (wt == 0) - FREE_STACK_RETURN (REG_ECTYPE); - - /* Throw away the ] at the end of the character - class. */ - PATFETCH (c); - - if (p == pend) FREE_STACK_RETURN (REG_EBRACK); - - for (ch = 0; ch < 1 << BYTEWIDTH; ++ch) - { -# ifdef _LIBC - if (__iswctype (__btowc (ch), wt)) - SET_LIST_BIT (ch); -# else - if (iswctype (btowc (ch), wt)) - SET_LIST_BIT (ch); -# endif - - if (translate && (is_upper || is_lower) - && (ISUPPER (ch) || ISLOWER (ch))) - SET_LIST_BIT (ch); - } - - had_char_class = true; -# else - int ch; - boolean is_alnum = STREQ (str, "alnum"); - boolean is_alpha = STREQ (str, "alpha"); - boolean is_blank = STREQ (str, "blank"); - boolean is_cntrl = STREQ (str, "cntrl"); - boolean is_digit = STREQ (str, "digit"); - boolean is_graph = STREQ (str, "graph"); - boolean is_lower = STREQ (str, "lower"); - boolean is_print = STREQ (str, "print"); - boolean is_punct = STREQ (str, "punct"); - boolean is_space = STREQ (str, "space"); - boolean is_upper = STREQ (str, "upper"); - boolean is_xdigit = STREQ (str, "xdigit"); - - if (!IS_CHAR_CLASS (str)) - FREE_STACK_RETURN (REG_ECTYPE); - - /* Throw away the ] at the end of the character - class. */ - PATFETCH (c); - - if (p == pend) FREE_STACK_RETURN (REG_EBRACK); - - for (ch = 0; ch < 1 << BYTEWIDTH; ch++) - { - /* This was split into 3 if's to - avoid an arbitrary limit in some compiler. */ - if ( (is_alnum && ISALNUM (ch)) - || (is_alpha && ISALPHA (ch)) - || (is_blank && ISBLANK (ch)) - || (is_cntrl && ISCNTRL (ch))) - SET_LIST_BIT (ch); - if ( (is_digit && ISDIGIT (ch)) - || (is_graph && ISGRAPH (ch)) - || (is_lower && ISLOWER (ch)) - || (is_print && ISPRINT (ch))) - SET_LIST_BIT (ch); - if ( (is_punct && ISPUNCT (ch)) - || (is_space && ISSPACE (ch)) - || (is_upper && ISUPPER (ch)) - || (is_xdigit && ISXDIGIT (ch))) - SET_LIST_BIT (ch); - if ( translate && (is_upper || is_lower) - && (ISUPPER (ch) || ISLOWER (ch))) - SET_LIST_BIT (ch); - } - had_char_class = true; -# endif /* libc || wctype.h */ - } - else - { - c1++; - while (c1--) - PATUNFETCH; - SET_LIST_BIT ('['); - SET_LIST_BIT (':'); - range_start = ':'; - had_char_class = false; - } - } - else if (syntax & RE_CHAR_CLASSES && c == '[' && *p == '=') - { - unsigned char str[MB_LEN_MAX + 1]; -# ifdef _LIBC - uint32_t nrules = - _NL_CURRENT_WORD (LC_COLLATE, _NL_COLLATE_NRULES); -# endif - - PATFETCH (c); - c1 = 0; - - /* If pattern is `[[='. */ - if (p == pend) FREE_STACK_RETURN (REG_EBRACK); - - for (;;) - { - PATFETCH (c); - if ((c == '=' && *p == ']') || p == pend) - break; - if (c1 < MB_LEN_MAX) - str[c1++] = c; - else - /* This is in any case an invalid class name. */ - str[0] = '\0'; - } - str[c1] = '\0'; - - if (c == '=' && *p == ']' && str[0] != '\0') - { - /* If we have no collation data we use the default - collation in which each character is in a class - by itself. It also means that ASCII is the - character set and therefore we cannot have character - with more than one byte in the multibyte - representation. */ -# ifdef _LIBC - if (nrules == 0) -# endif - { - if (c1 != 1) - FREE_STACK_RETURN (REG_ECOLLATE); - - /* Throw away the ] at the end of the equivalence - class. */ - PATFETCH (c); - - /* Set the bit for the character. */ - SET_LIST_BIT (str[0]); - } -# ifdef _LIBC - else - { - /* Try to match the byte sequence in `str' against - those known to the collate implementation. - First find out whether the bytes in `str' are - actually from exactly one character. */ - const int32_t *table; - const unsigned char *weights; - const unsigned char *extra; - const int32_t *indirect; - int32_t idx; - const unsigned char *cp = str; - int ch; - - /* This #include defines a local function! */ -# include <locale/weight.h> - - table = (const int32_t *) - _NL_CURRENT (LC_COLLATE, _NL_COLLATE_TABLEMB); - weights = (const unsigned char *) - _NL_CURRENT (LC_COLLATE, _NL_COLLATE_WEIGHTMB); - extra = (const unsigned char *) - _NL_CURRENT (LC_COLLATE, _NL_COLLATE_EXTRAMB); - indirect = (const int32_t *) - _NL_CURRENT (LC_COLLATE, _NL_COLLATE_INDIRECTMB); - - idx = findidx (&cp); - if (idx == 0 || cp < str + c1) - /* This is no valid character. */ - FREE_STACK_RETURN (REG_ECOLLATE); - - /* Throw away the ] at the end of the equivalence - class. */ - PATFETCH (c); - - /* Now we have to go throught the whole table - and find all characters which have the same - first level weight. - - XXX Note that this is not entirely correct. - we would have to match multibyte sequences - but this is not possible with the current - implementation. */ - for (ch = 1; ch < 256; ++ch) - /* XXX This test would have to be changed if we - would allow matching multibyte sequences. */ - if (table[ch] > 0) - { - int32_t idx2 = table[ch]; - size_t len = weights[idx2]; - - /* Test whether the lenghts match. */ - if (weights[idx] == len) - { - /* They do. New compare the bytes of - the weight. */ - size_t cnt = 0; - - while (cnt < len - && (weights[idx + 1 + cnt] - == weights[idx2 + 1 + cnt])) - ++cnt; - - if (cnt == len) - /* They match. Mark the character as - acceptable. */ - SET_LIST_BIT (ch); - } - } - } -# endif - had_char_class = true; - } - else - { - c1++; - while (c1--) - PATUNFETCH; - SET_LIST_BIT ('['); - SET_LIST_BIT ('='); - range_start = '='; - had_char_class = false; - } - } - else if (syntax & RE_CHAR_CLASSES && c == '[' && *p == '.') - { - unsigned char str[128]; /* Should be large enough. */ -# ifdef _LIBC - uint32_t nrules = - _NL_CURRENT_WORD (LC_COLLATE, _NL_COLLATE_NRULES); -# endif - - PATFETCH (c); - c1 = 0; - - /* If pattern is `[[.'. */ - if (p == pend) FREE_STACK_RETURN (REG_EBRACK); - - for (;;) - { - PATFETCH (c); - if ((c == '.' && *p == ']') || p == pend) - break; - if (c1 < sizeof (str)) - str[c1++] = c; - else - /* This is in any case an invalid class name. */ - str[0] = '\0'; - } - str[c1] = '\0'; - - if (c == '.' && *p == ']' && str[0] != '\0') - { - /* If we have no collation data we use the default - collation in which each character is the name - for its own class which contains only the one - character. It also means that ASCII is the - character set and therefore we cannot have character - with more than one byte in the multibyte - representation. */ -# ifdef _LIBC - if (nrules == 0) -# endif - { - if (c1 != 1) - FREE_STACK_RETURN (REG_ECOLLATE); - - /* Throw away the ] at the end of the equivalence - class. */ - PATFETCH (c); - - /* Set the bit for the character. */ - SET_LIST_BIT (str[0]); - range_start = ((const unsigned char *) str)[0]; - } -# ifdef _LIBC - else - { - /* Try to match the byte sequence in `str' against - those known to the collate implementation. - First find out whether the bytes in `str' are - actually from exactly one character. */ - int32_t table_size; - const int32_t *symb_table; - const unsigned char *extra; - int32_t idx; - int32_t elem; - int32_t second; - int32_t hash; - - table_size = - _NL_CURRENT_WORD (LC_COLLATE, - _NL_COLLATE_SYMB_HASH_SIZEMB); - symb_table = (const int32_t *) - _NL_CURRENT (LC_COLLATE, - _NL_COLLATE_SYMB_TABLEMB); - extra = (const unsigned char *) - _NL_CURRENT (LC_COLLATE, - _NL_COLLATE_SYMB_EXTRAMB); - - /* Locate the character in the hashing table. */ - hash = elem_hash (str, c1); - - idx = 0; - elem = hash % table_size; - second = hash % (table_size - 2); - while (symb_table[2 * elem] != 0) - { - /* First compare the hashing value. */ - if (symb_table[2 * elem] == hash - && c1 == extra[symb_table[2 * elem + 1]] - && memcmp (str, - &extra[symb_table[2 * elem + 1] - + 1], - c1) == 0) - { - /* Yep, this is the entry. */ - idx = symb_table[2 * elem + 1]; - idx += 1 + extra[idx]; - break; - } - - /* Next entry. */ - elem += second; - } - - if (symb_table[2 * elem] == 0) - /* This is no valid character. */ - FREE_STACK_RETURN (REG_ECOLLATE); - - /* Throw away the ] at the end of the equivalence - class. */ - PATFETCH (c); - - /* Now add the multibyte character(s) we found - to the accept list. - - XXX Note that this is not entirely correct. - we would have to match multibyte sequences - but this is not possible with the current - implementation. Also, we have to match - collating symbols, which expand to more than - one file, as a whole and not allow the - individual bytes. */ - c1 = extra[idx++]; - if (c1 == 1) - range_start = extra[idx]; - while (c1-- > 0) - { - SET_LIST_BIT (extra[idx]); - ++idx; - } - } -# endif - had_char_class = false; - } - else - { - c1++; - while (c1--) - PATUNFETCH; - SET_LIST_BIT ('['); - SET_LIST_BIT ('.'); - range_start = '.'; - had_char_class = false; - } - } - else - { - had_char_class = false; - SET_LIST_BIT (c); - range_start = c; - } - } - - /* Discard any (non)matching list bytes that are all 0 at the - end of the map. Decrease the map-length byte too. */ - while ((int) b[-1] > 0 && b[b[-1] - 1] == 0) - b[-1]--; - b += b[-1]; -#endif /* WCHAR */ - } - break; - - - case '(': - if (syntax & RE_NO_BK_PARENS) - goto handle_open; - else - goto normal_char; - - - case ')': - if (syntax & RE_NO_BK_PARENS) - goto handle_close; - else - goto normal_char; - - - case '\n': - if (syntax & RE_NEWLINE_ALT) - goto handle_alt; - else - goto normal_char; - - - case '|': - if (syntax & RE_NO_BK_VBAR) - goto handle_alt; - else - goto normal_char; - - - case '{': - if (syntax & RE_INTERVALS && syntax & RE_NO_BK_BRACES) - goto handle_interval; - else - goto normal_char; - - - case '\\': - if (p == pend) FREE_STACK_RETURN (REG_EESCAPE); - - /* Do not translate the character after the \, so that we can - distinguish, e.g., \B from \b, even if we normally would - translate, e.g., B to b. */ - PATFETCH_RAW (c); - - switch (c) - { - case '(': - if (syntax & RE_NO_BK_PARENS) - goto normal_backslash; - - handle_open: - bufp->re_nsub++; - regnum++; - - if (COMPILE_STACK_FULL) - { - RETALLOC (compile_stack.stack, compile_stack.size << 1, - compile_stack_elt_t); - if (compile_stack.stack == NULL) return REG_ESPACE; - - compile_stack.size <<= 1; - } - - /* These are the values to restore when we hit end of this - group. They are all relative offsets, so that if the - whole pattern moves because of realloc, they will still - be valid. */ - COMPILE_STACK_TOP.begalt_offset = begalt - COMPILED_BUFFER_VAR; - COMPILE_STACK_TOP.fixup_alt_jump - = fixup_alt_jump ? fixup_alt_jump - COMPILED_BUFFER_VAR + 1 : 0; - COMPILE_STACK_TOP.laststart_offset = b - COMPILED_BUFFER_VAR; - COMPILE_STACK_TOP.regnum = regnum; - - /* We will eventually replace the 0 with the number of - groups inner to this one. But do not push a - start_memory for groups beyond the last one we can - represent in the compiled pattern. */ - if (regnum <= MAX_REGNUM) - { - COMPILE_STACK_TOP.inner_group_offset = b - - COMPILED_BUFFER_VAR + 2; - BUF_PUSH_3 (start_memory, regnum, 0); - } - - compile_stack.avail++; - - fixup_alt_jump = 0; - laststart = 0; - begalt = b; - /* If we've reached MAX_REGNUM groups, then this open - won't actually generate any code, so we'll have to - clear pending_exact explicitly. */ - pending_exact = 0; - break; - - - case ')': - if (syntax & RE_NO_BK_PARENS) goto normal_backslash; - - if (COMPILE_STACK_EMPTY) - { - if (syntax & RE_UNMATCHED_RIGHT_PAREN_ORD) - goto normal_backslash; - else - FREE_STACK_RETURN (REG_ERPAREN); - } - - handle_close: - if (fixup_alt_jump) - { /* Push a dummy failure point at the end of the - alternative for a possible future - `pop_failure_jump' to pop. See comments at - `push_dummy_failure' in `re_match_2'. */ - BUF_PUSH (push_dummy_failure); - - /* We allocated space for this jump when we assigned - to `fixup_alt_jump', in the `handle_alt' case below. */ - STORE_JUMP (jump_past_alt, fixup_alt_jump, b - 1); - } - - /* See similar code for backslashed left paren above. */ - if (COMPILE_STACK_EMPTY) - { - if (syntax & RE_UNMATCHED_RIGHT_PAREN_ORD) - goto normal_char; - else - FREE_STACK_RETURN (REG_ERPAREN); - } - - /* Since we just checked for an empty stack above, this - ``can't happen''. */ - assert (compile_stack.avail != 0); - { - /* We don't just want to restore into `regnum', because - later groups should continue to be numbered higher, - as in `(ab)c(de)' -- the second group is #2. */ - regnum_t this_group_regnum; - - compile_stack.avail--; - begalt = COMPILED_BUFFER_VAR + COMPILE_STACK_TOP.begalt_offset; - fixup_alt_jump - = COMPILE_STACK_TOP.fixup_alt_jump - ? COMPILED_BUFFER_VAR + COMPILE_STACK_TOP.fixup_alt_jump - 1 - : 0; - laststart = COMPILED_BUFFER_VAR + COMPILE_STACK_TOP.laststart_offset; - this_group_regnum = COMPILE_STACK_TOP.regnum; - /* If we've reached MAX_REGNUM groups, then this open - won't actually generate any code, so we'll have to - clear pending_exact explicitly. */ - pending_exact = 0; - - /* We're at the end of the group, so now we know how many - groups were inside this one. */ - if (this_group_regnum <= MAX_REGNUM) - { - UCHAR_T *inner_group_loc - = COMPILED_BUFFER_VAR + COMPILE_STACK_TOP.inner_group_offset; - - *inner_group_loc = regnum - this_group_regnum; - BUF_PUSH_3 (stop_memory, this_group_regnum, - regnum - this_group_regnum); - } - } - break; - - - case '|': /* `\|'. */ - if (syntax & RE_LIMITED_OPS || syntax & RE_NO_BK_VBAR) - goto normal_backslash; - handle_alt: - if (syntax & RE_LIMITED_OPS) - goto normal_char; - - /* Insert before the previous alternative a jump which - jumps to this alternative if the former fails. */ - GET_BUFFER_SPACE (1 + OFFSET_ADDRESS_SIZE); - INSERT_JUMP (on_failure_jump, begalt, - b + 2 + 2 * OFFSET_ADDRESS_SIZE); - pending_exact = 0; - b += 1 + OFFSET_ADDRESS_SIZE; - - /* The alternative before this one has a jump after it - which gets executed if it gets matched. Adjust that - jump so it will jump to this alternative's analogous - jump (put in below, which in turn will jump to the next - (if any) alternative's such jump, etc.). The last such - jump jumps to the correct final destination. A picture: - _____ _____ - | | | | - | v | v - a | b | c - - If we are at `b', then fixup_alt_jump right now points to a - three-byte space after `a'. We'll put in the jump, set - fixup_alt_jump to right after `b', and leave behind three - bytes which we'll fill in when we get to after `c'. */ - - if (fixup_alt_jump) - STORE_JUMP (jump_past_alt, fixup_alt_jump, b); - - /* Mark and leave space for a jump after this alternative, - to be filled in later either by next alternative or - when know we're at the end of a series of alternatives. */ - fixup_alt_jump = b; - GET_BUFFER_SPACE (1 + OFFSET_ADDRESS_SIZE); - b += 1 + OFFSET_ADDRESS_SIZE; - - laststart = 0; - begalt = b; - break; - - - case '{': - /* If \{ is a literal. */ - if (!(syntax & RE_INTERVALS) - /* If we're at `\{' and it's not the open-interval - operator. */ - || (syntax & RE_NO_BK_BRACES)) - goto normal_backslash; - - handle_interval: - { - /* If got here, then the syntax allows intervals. */ - - /* At least (most) this many matches must be made. */ - int lower_bound = -1, upper_bound = -1; - - /* Place in the uncompiled pattern (i.e., just after - the '{') to go back to if the interval is invalid. */ - const CHAR_T *beg_interval = p; - - if (p == pend) - goto invalid_interval; - - GET_UNSIGNED_NUMBER (lower_bound); - - if (c == ',') - { - GET_UNSIGNED_NUMBER (upper_bound); - if (upper_bound < 0) - upper_bound = RE_DUP_MAX; - } - else - /* Interval such as `{1}' => match exactly once. */ - upper_bound = lower_bound; - - if (! (0 <= lower_bound && lower_bound <= upper_bound)) - goto invalid_interval; - - if (!(syntax & RE_NO_BK_BRACES)) - { - if (c != '\\' || p == pend) - goto invalid_interval; - PATFETCH (c); - } - - if (c != '}') - goto invalid_interval; - - /* If it's invalid to have no preceding re. */ - if (!laststart) - { - if (syntax & RE_CONTEXT_INVALID_OPS - && !(syntax & RE_INVALID_INTERVAL_ORD)) - FREE_STACK_RETURN (REG_BADRPT); - else if (syntax & RE_CONTEXT_INDEP_OPS) - laststart = b; - else - goto unfetch_interval; - } - - /* We just parsed a valid interval. */ - - if (RE_DUP_MAX < upper_bound) - FREE_STACK_RETURN (REG_BADBR); - - /* If the upper bound is zero, don't want to succeed at - all; jump from `laststart' to `b + 3', which will be - the end of the buffer after we insert the jump. */ - /* ifdef WCHAR, 'b + 1 + OFFSET_ADDRESS_SIZE' - instead of 'b + 3'. */ - if (upper_bound == 0) - { - GET_BUFFER_SPACE (1 + OFFSET_ADDRESS_SIZE); - INSERT_JUMP (jump, laststart, b + 1 - + OFFSET_ADDRESS_SIZE); - b += 1 + OFFSET_ADDRESS_SIZE; - } - - /* Otherwise, we have a nontrivial interval. When - we're all done, the pattern will look like: - set_number_at <jump count> <upper bound> - set_number_at <succeed_n count> <lower bound> - succeed_n <after jump addr> <succeed_n count> - <body of loop> - jump_n <succeed_n addr> <jump count> - (The upper bound and `jump_n' are omitted if - `upper_bound' is 1, though.) */ - else - { /* If the upper bound is > 1, we need to insert - more at the end of the loop. */ - unsigned nbytes = 2 + 4 * OFFSET_ADDRESS_SIZE + - (upper_bound > 1) * (2 + 4 * OFFSET_ADDRESS_SIZE); - - GET_BUFFER_SPACE (nbytes); - - /* Initialize lower bound of the `succeed_n', even - though it will be set during matching by its - attendant `set_number_at' (inserted next), - because `re_compile_fastmap' needs to know. - Jump to the `jump_n' we might insert below. */ - INSERT_JUMP2 (succeed_n, laststart, - b + 1 + 2 * OFFSET_ADDRESS_SIZE - + (upper_bound > 1) * (1 + 2 * OFFSET_ADDRESS_SIZE) - , lower_bound); - b += 1 + 2 * OFFSET_ADDRESS_SIZE; - - /* Code to initialize the lower bound. Insert - before the `succeed_n'. The `5' is the last two - bytes of this `set_number_at', plus 3 bytes of - the following `succeed_n'. */ - /* ifdef WCHAR, The '1+2*OFFSET_ADDRESS_SIZE' - is the 'set_number_at', plus '1+OFFSET_ADDRESS_SIZE' - of the following `succeed_n'. */ - PREFIX(insert_op2) (set_number_at, laststart, 1 - + 2 * OFFSET_ADDRESS_SIZE, lower_bound, b); - b += 1 + 2 * OFFSET_ADDRESS_SIZE; - - if (upper_bound > 1) - { /* More than one repetition is allowed, so - append a backward jump to the `succeed_n' - that starts this interval. - - When we've reached this during matching, - we'll have matched the interval once, so - jump back only `upper_bound - 1' times. */ - STORE_JUMP2 (jump_n, b, laststart - + 2 * OFFSET_ADDRESS_SIZE + 1, - upper_bound - 1); - b += 1 + 2 * OFFSET_ADDRESS_SIZE; - - /* The location we want to set is the second - parameter of the `jump_n'; that is `b-2' as - an absolute address. `laststart' will be - the `set_number_at' we're about to insert; - `laststart+3' the number to set, the source - for the relative address. But we are - inserting into the middle of the pattern -- - so everything is getting moved up by 5. - Conclusion: (b - 2) - (laststart + 3) + 5, - i.e., b - laststart. - - We insert this at the beginning of the loop - so that if we fail during matching, we'll - reinitialize the bounds. */ - PREFIX(insert_op2) (set_number_at, laststart, - b - laststart, - upper_bound - 1, b); - b += 1 + 2 * OFFSET_ADDRESS_SIZE; - } - } - pending_exact = 0; - break; - - invalid_interval: - if (!(syntax & RE_INVALID_INTERVAL_ORD)) - FREE_STACK_RETURN (p == pend ? REG_EBRACE : REG_BADBR); - unfetch_interval: - /* Match the characters as literals. */ - p = beg_interval; - c = '{'; - if (syntax & RE_NO_BK_BRACES) - goto normal_char; - else - goto normal_backslash; - } - -#ifdef emacs - /* There is no way to specify the before_dot and after_dot - operators. rms says this is ok. --karl */ - case '=': - BUF_PUSH (at_dot); - break; - - case 's': - laststart = b; - PATFETCH (c); - BUF_PUSH_2 (syntaxspec, syntax_spec_code[c]); - break; - - case 'S': - laststart = b; - PATFETCH (c); - BUF_PUSH_2 (notsyntaxspec, syntax_spec_code[c]); - break; -#endif /* emacs */ - - - case 'w': - if (syntax & RE_NO_GNU_OPS) - goto normal_char; - laststart = b; - BUF_PUSH (wordchar); - break; - - - case 'W': - if (syntax & RE_NO_GNU_OPS) - goto normal_char; - laststart = b; - BUF_PUSH (notwordchar); - break; - - - case '<': - if (syntax & RE_NO_GNU_OPS) - goto normal_char; - BUF_PUSH (wordbeg); - break; - - case '>': - if (syntax & RE_NO_GNU_OPS) - goto normal_char; - BUF_PUSH (wordend); - break; - - case 'b': - if (syntax & RE_NO_GNU_OPS) - goto normal_char; - BUF_PUSH (wordbound); - break; - - case 'B': - if (syntax & RE_NO_GNU_OPS) - goto normal_char; - BUF_PUSH (notwordbound); - break; - - case '`': - if (syntax & RE_NO_GNU_OPS) - goto normal_char; - BUF_PUSH (begbuf); - break; - - case '\'': - if (syntax & RE_NO_GNU_OPS) - goto normal_char; - BUF_PUSH (endbuf); - break; - - case '1': case '2': case '3': case '4': case '5': - case '6': case '7': case '8': case '9': - if (syntax & RE_NO_BK_REFS) - goto normal_char; - - c1 = c - '0'; - - if (c1 > regnum) - FREE_STACK_RETURN (REG_ESUBREG); - - /* Can't back reference to a subexpression if inside of it. */ - if (group_in_compile_stack (compile_stack, (regnum_t) c1)) - goto normal_char; - - laststart = b; - BUF_PUSH_2 (duplicate, c1); - break; - - - case '+': - case '?': - if (syntax & RE_BK_PLUS_QM) - goto handle_plus; - else - goto normal_backslash; - - default: - normal_backslash: - /* You might think it would be useful for \ to mean - not to translate; but if we don't translate it - it will never match anything. */ - c = TRANSLATE (c); - goto normal_char; - } - break; - - - default: - /* Expects the character in `c'. */ - normal_char: - /* If no exactn currently being built. */ - if (!pending_exact -#ifdef WCHAR - /* If last exactn handle binary(or character) and - new exactn handle character(or binary). */ - || is_exactn_bin != is_binary[p - 1 - pattern] -#endif /* WCHAR */ - - /* If last exactn not at current position. */ - || pending_exact + *pending_exact + 1 != b - - /* We have only one byte following the exactn for the count. */ - || *pending_exact == (1 << BYTEWIDTH) - 1 - - /* If followed by a repetition operator. */ - || *p == '*' || *p == '^' - || ((syntax & RE_BK_PLUS_QM) - ? *p == '\\' && (p[1] == '+' || p[1] == '?') - : (*p == '+' || *p == '?')) - || ((syntax & RE_INTERVALS) - && ((syntax & RE_NO_BK_BRACES) - ? *p == '{' - : (p[0] == '\\' && p[1] == '{')))) - { - /* Start building a new exactn. */ - - laststart = b; - -#ifdef WCHAR - /* Is this exactn binary data or character? */ - is_exactn_bin = is_binary[p - 1 - pattern]; - if (is_exactn_bin) - BUF_PUSH_2 (exactn_bin, 0); - else - BUF_PUSH_2 (exactn, 0); -#else - BUF_PUSH_2 (exactn, 0); -#endif /* WCHAR */ - pending_exact = b - 1; - } - - BUF_PUSH (c); - (*pending_exact)++; - break; - } /* switch (c) */ - } /* while p != pend */ - - - /* Through the pattern now. */ - - if (fixup_alt_jump) - STORE_JUMP (jump_past_alt, fixup_alt_jump, b); - - if (!COMPILE_STACK_EMPTY) - FREE_STACK_RETURN (REG_EPAREN); - - /* If we don't want backtracking, force success - the first time we reach the end of the compiled pattern. */ - if (syntax & RE_NO_POSIX_BACKTRACKING) - BUF_PUSH (succeed); - -#ifdef WCHAR - free (pattern); - free (mbs_offset); - free (is_binary); -#endif - free (compile_stack.stack); - - /* We have succeeded; set the length of the buffer. */ -#ifdef WCHAR - bufp->used = (uintptr_t) b - (uintptr_t) COMPILED_BUFFER_VAR; -#else - bufp->used = b - bufp->buffer; -#endif - -#ifdef DEBUG - if (debug) - { - DEBUG_PRINT1 ("\nCompiled pattern: \n"); - PREFIX(print_compiled_pattern) (bufp); - } -#endif /* DEBUG */ - -#ifndef MATCH_MAY_ALLOCATE - /* Initialize the failure stack to the largest possible stack. This - isn't necessary unless we're trying to avoid calling alloca in - the search and match routines. */ - { - int num_regs = bufp->re_nsub + 1; - - /* Since DOUBLE_FAIL_STACK refuses to double only if the current size - is strictly greater than re_max_failures, the largest possible stack - is 2 * re_max_failures failure points. */ - if (fail_stack.size < (2 * re_max_failures * MAX_FAILURE_ITEMS)) - { - fail_stack.size = (2 * re_max_failures * MAX_FAILURE_ITEMS); - -# ifdef emacs - if (! fail_stack.stack) - fail_stack.stack - = (PREFIX(fail_stack_elt_t) *) xmalloc (fail_stack.size - * sizeof (PREFIX(fail_stack_elt_t))); - else - fail_stack.stack - = (PREFIX(fail_stack_elt_t) *) xrealloc (fail_stack.stack, - (fail_stack.size - * sizeof (PREFIX(fail_stack_elt_t)))); -# else /* not emacs */ - if (! fail_stack.stack) - fail_stack.stack - = (PREFIX(fail_stack_elt_t) *) malloc (fail_stack.size - * sizeof (PREFIX(fail_stack_elt_t))); - else - fail_stack.stack - = (PREFIX(fail_stack_elt_t) *) realloc (fail_stack.stack, - (fail_stack.size - * sizeof (PREFIX(fail_stack_elt_t)))); -# endif /* not emacs */ - } - - PREFIX(regex_grow_registers) (num_regs); - } -#endif /* not MATCH_MAY_ALLOCATE */ - - return REG_NOERROR; -} /* regex_compile */ - -/* Subroutines for `regex_compile'. */ - -/* Store OP at LOC followed by two-byte integer parameter ARG. */ -/* ifdef WCHAR, integer parameter is 1 wchar_t. */ - -static void -PREFIX(store_op1) (op, loc, arg) - re_opcode_t op; - UCHAR_T *loc; - int arg; -{ - *loc = (UCHAR_T) op; - STORE_NUMBER (loc + 1, arg); -} - - -/* Like `store_op1', but for two two-byte parameters ARG1 and ARG2. */ -/* ifdef WCHAR, integer parameter is 1 wchar_t. */ - -static void -PREFIX(store_op2) (op, loc, arg1, arg2) - re_opcode_t op; - UCHAR_T *loc; - int arg1, arg2; -{ - *loc = (UCHAR_T) op; - STORE_NUMBER (loc + 1, arg1); - STORE_NUMBER (loc + 1 + OFFSET_ADDRESS_SIZE, arg2); -} - - -/* Copy the bytes from LOC to END to open up three bytes of space at LOC - for OP followed by two-byte integer parameter ARG. */ -/* ifdef WCHAR, integer parameter is 1 wchar_t. */ - -static void -PREFIX(insert_op1) (op, loc, arg, end) - re_opcode_t op; - UCHAR_T *loc; - int arg; - UCHAR_T *end; -{ - register UCHAR_T *pfrom = end; - register UCHAR_T *pto = end + 1 + OFFSET_ADDRESS_SIZE; - - while (pfrom != loc) - *--pto = *--pfrom; - - PREFIX(store_op1) (op, loc, arg); -} - - -/* Like `insert_op1', but for two two-byte parameters ARG1 and ARG2. */ -/* ifdef WCHAR, integer parameter is 1 wchar_t. */ - -static void -PREFIX(insert_op2) (op, loc, arg1, arg2, end) - re_opcode_t op; - UCHAR_T *loc; - int arg1, arg2; - UCHAR_T *end; -{ - register UCHAR_T *pfrom = end; - register UCHAR_T *pto = end + 1 + 2 * OFFSET_ADDRESS_SIZE; - - while (pfrom != loc) - *--pto = *--pfrom; - - PREFIX(store_op2) (op, loc, arg1, arg2); -} - - -/* P points to just after a ^ in PATTERN. Return true if that ^ comes - after an alternative or a begin-subexpression. We assume there is at - least one character before the ^. */ - -static boolean -PREFIX(at_begline_loc_p) (pattern, p, syntax) - const CHAR_T *pattern, *p; - reg_syntax_t syntax; -{ - const CHAR_T *prev = p - 2; - boolean prev_prev_backslash = prev > pattern && prev[-1] == '\\'; - - return - /* After a subexpression? */ - (*prev == '(' && (syntax & RE_NO_BK_PARENS || prev_prev_backslash)) - /* After an alternative? */ - || (*prev == '|' && (syntax & RE_NO_BK_VBAR || prev_prev_backslash)); -} - - -/* The dual of at_begline_loc_p. This one is for $. We assume there is - at least one character after the $, i.e., `P < PEND'. */ - -static boolean -PREFIX(at_endline_loc_p) (p, pend, syntax) - const CHAR_T *p, *pend; - reg_syntax_t syntax; -{ - const CHAR_T *next = p; - boolean next_backslash = *next == '\\'; - const CHAR_T *next_next = p + 1 < pend ? p + 1 : 0; - - return - /* Before a subexpression? */ - (syntax & RE_NO_BK_PARENS ? *next == ')' - : next_backslash && next_next && *next_next == ')') - /* Before an alternative? */ - || (syntax & RE_NO_BK_VBAR ? *next == '|' - : next_backslash && next_next && *next_next == '|'); -} - -#else /* not INSIDE_RECURSION */ - -/* Returns true if REGNUM is in one of COMPILE_STACK's elements and - false if it's not. */ - -static boolean -group_in_compile_stack (compile_stack, regnum) - compile_stack_type compile_stack; - regnum_t regnum; -{ - int this_element; - - for (this_element = compile_stack.avail - 1; - this_element >= 0; - this_element--) - if (compile_stack.stack[this_element].regnum == regnum) - return true; - - return false; -} -#endif /* not INSIDE_RECURSION */ - -#ifdef INSIDE_RECURSION - -#ifdef WCHAR -/* This insert space, which size is "num", into the pattern at "loc". - "end" must point the end of the allocated buffer. */ -static void -insert_space (num, loc, end) - int num; - CHAR_T *loc; - CHAR_T *end; -{ - register CHAR_T *pto = end; - register CHAR_T *pfrom = end - num; - - while (pfrom >= loc) - *pto-- = *pfrom--; -} -#endif /* WCHAR */ - -#ifdef WCHAR -static reg_errcode_t -wcs_compile_range (range_start_char, p_ptr, pend, translate, syntax, b, - char_set) - CHAR_T range_start_char; - const CHAR_T **p_ptr, *pend; - CHAR_T *char_set, *b; - RE_TRANSLATE_TYPE translate; - reg_syntax_t syntax; -{ - const CHAR_T *p = *p_ptr; - CHAR_T range_start, range_end; - reg_errcode_t ret; -# ifdef _LIBC - uint32_t nrules; - uint32_t start_val, end_val; -# endif - if (p == pend) - return REG_ERANGE; - -# ifdef _LIBC - nrules = _NL_CURRENT_WORD (LC_COLLATE, _NL_COLLATE_NRULES); - if (nrules != 0) - { - const char *collseq = (const char *) _NL_CURRENT(LC_COLLATE, - _NL_COLLATE_COLLSEQWC); - const unsigned char *extra = (const unsigned char *) - _NL_CURRENT (LC_COLLATE, _NL_COLLATE_SYMB_EXTRAMB); - - if (range_start_char < -1) - { - /* range_start is a collating symbol. */ - int32_t *wextra; - /* Retreive the index and get collation sequence value. */ - wextra = (int32_t*)(extra + char_set[-range_start_char]); - start_val = wextra[1 + *wextra]; - } - else - start_val = collseq_table_lookup(collseq, TRANSLATE(range_start_char)); - - end_val = collseq_table_lookup (collseq, TRANSLATE (p[0])); - - /* Report an error if the range is empty and the syntax prohibits - this. */ - ret = ((syntax & RE_NO_EMPTY_RANGES) - && (start_val > end_val))? REG_ERANGE : REG_NOERROR; - - /* Insert space to the end of the char_ranges. */ - insert_space(2, b - char_set[5] - 2, b - 1); - *(b - char_set[5] - 2) = (wchar_t)start_val; - *(b - char_set[5] - 1) = (wchar_t)end_val; - char_set[4]++; /* ranges_index */ - } - else -# endif - { - range_start = (range_start_char >= 0)? TRANSLATE (range_start_char): - range_start_char; - range_end = TRANSLATE (p[0]); - /* Report an error if the range is empty and the syntax prohibits - this. */ - ret = ((syntax & RE_NO_EMPTY_RANGES) - && (range_start > range_end))? REG_ERANGE : REG_NOERROR; - - /* Insert space to the end of the char_ranges. */ - insert_space(2, b - char_set[5] - 2, b - 1); - *(b - char_set[5] - 2) = range_start; - *(b - char_set[5] - 1) = range_end; - char_set[4]++; /* ranges_index */ - } - /* Have to increment the pointer into the pattern string, so the - caller isn't still at the ending character. */ - (*p_ptr)++; - - return ret; -} -#else /* BYTE */ -/* Read the ending character of a range (in a bracket expression) from the - uncompiled pattern *P_PTR (which ends at PEND). We assume the - starting character is in `P[-2]'. (`P[-1]' is the character `-'.) - Then we set the translation of all bits between the starting and - ending characters (inclusive) in the compiled pattern B. - - Return an error code. - - We use these short variable names so we can use the same macros as - `regex_compile' itself. */ - -static reg_errcode_t -byte_compile_range (range_start_char, p_ptr, pend, translate, syntax, b) - unsigned int range_start_char; - const char **p_ptr, *pend; - RE_TRANSLATE_TYPE translate; - reg_syntax_t syntax; - unsigned char *b; -{ - unsigned this_char; - const char *p = *p_ptr; - reg_errcode_t ret; -# if _LIBC - const unsigned char *collseq; - unsigned int start_colseq; - unsigned int end_colseq; -# else - unsigned end_char; -# endif - - if (p == pend) - return REG_ERANGE; - - /* Have to increment the pointer into the pattern string, so the - caller isn't still at the ending character. */ - (*p_ptr)++; - - /* Report an error if the range is empty and the syntax prohibits this. */ - ret = syntax & RE_NO_EMPTY_RANGES ? REG_ERANGE : REG_NOERROR; - -# if _LIBC - collseq = (const unsigned char *) _NL_CURRENT (LC_COLLATE, - _NL_COLLATE_COLLSEQMB); - - start_colseq = collseq[(unsigned char) TRANSLATE (range_start_char)]; - end_colseq = collseq[(unsigned char) TRANSLATE (p[0])]; - for (this_char = 0; this_char <= (unsigned char) -1; ++this_char) - { - unsigned int this_colseq = collseq[(unsigned char) TRANSLATE (this_char)]; - - if (start_colseq <= this_colseq && this_colseq <= end_colseq) - { - SET_LIST_BIT (TRANSLATE (this_char)); - ret = REG_NOERROR; - } - } -# else - /* Here we see why `this_char' has to be larger than an `unsigned - char' -- we would otherwise go into an infinite loop, since all - characters <= 0xff. */ - range_start_char = TRANSLATE (range_start_char); - /* TRANSLATE(p[0]) is casted to char (not unsigned char) in TRANSLATE, - and some compilers cast it to int implicitly, so following for_loop - may fall to (almost) infinite loop. - e.g. If translate[p[0]] = 0xff, end_char may equals to 0xffffffff. - To avoid this, we cast p[0] to unsigned int and truncate it. */ - end_char = ((unsigned)TRANSLATE(p[0]) & ((1 << BYTEWIDTH) - 1)); - - for (this_char = range_start_char; this_char <= end_char; ++this_char) - { - SET_LIST_BIT (TRANSLATE (this_char)); - ret = REG_NOERROR; - } -# endif - - return ret; -} -#endif /* WCHAR */ - - -/* re_compile_fastmap computes a ``fastmap'' for the compiled pattern in - BUFP. A fastmap records which of the (1 << BYTEWIDTH) possible - characters can start a string that matches the pattern. This fastmap - is used by re_search to skip quickly over impossible starting points. - - The caller must supply the address of a (1 << BYTEWIDTH)-byte data - area as BUFP->fastmap. - - We set the `fastmap', `fastmap_accurate', and `can_be_null' fields in - the pattern buffer. - - Returns 0 if we succeed, -2 if an internal error. */ - -#ifdef WCHAR -/* local function for re_compile_fastmap. - truncate wchar_t character to char. */ -static unsigned char truncate_wchar (CHAR_T c); - -static unsigned char -truncate_wchar (c) - CHAR_T c; -{ - unsigned char buf[MB_CUR_MAX]; - mbstate_t state; - int retval; - memset (&state, '\0', sizeof (state)); -# ifdef _LIBC - retval = __wcrtomb (buf, c, &state); -# else - retval = wcrtomb (buf, c, &state); -# endif - return retval > 0 ? buf[0] : (unsigned char) c; -} -#endif /* WCHAR */ - -static int -PREFIX(re_compile_fastmap) (bufp) - struct re_pattern_buffer *bufp; -{ - int j, k; -#ifdef MATCH_MAY_ALLOCATE - PREFIX(fail_stack_type) fail_stack; -#endif -#ifndef REGEX_MALLOC - char *destination; -#endif - - register char *fastmap = bufp->fastmap; - -#ifdef WCHAR - /* We need to cast pattern to (wchar_t*), because we casted this compiled - pattern to (char*) in regex_compile. */ - UCHAR_T *pattern = (UCHAR_T*)bufp->buffer; - register UCHAR_T *pend = (UCHAR_T*) (bufp->buffer + bufp->used); -#else /* BYTE */ - UCHAR_T *pattern = bufp->buffer; - register UCHAR_T *pend = pattern + bufp->used; -#endif /* WCHAR */ - UCHAR_T *p = pattern; - -#ifdef REL_ALLOC - /* This holds the pointer to the failure stack, when - it is allocated relocatably. */ - fail_stack_elt_t *failure_stack_ptr; -#endif - - /* Assume that each path through the pattern can be null until - proven otherwise. We set this false at the bottom of switch - statement, to which we get only if a particular path doesn't - match the empty string. */ - boolean path_can_be_null = true; - - /* We aren't doing a `succeed_n' to begin with. */ - boolean succeed_n_p = false; - - assert (fastmap != NULL && p != NULL); - - INIT_FAIL_STACK (); - bzero (fastmap, 1 << BYTEWIDTH); /* Assume nothing's valid. */ - bufp->fastmap_accurate = 1; /* It will be when we're done. */ - bufp->can_be_null = 0; - - while (1) - { - if (p == pend || *p == succeed) - { - /* We have reached the (effective) end of pattern. */ - if (!FAIL_STACK_EMPTY ()) - { - bufp->can_be_null |= path_can_be_null; - - /* Reset for next path. */ - path_can_be_null = true; - - p = fail_stack.stack[--fail_stack.avail].pointer; - - continue; - } - else - break; - } - - /* We should never be about to go beyond the end of the pattern. */ - assert (p < pend); - - switch (SWITCH_ENUM_CAST ((re_opcode_t) *p++)) - { - - /* I guess the idea here is to simply not bother with a fastmap - if a backreference is used, since it's too hard to figure out - the fastmap for the corresponding group. Setting - `can_be_null' stops `re_search_2' from using the fastmap, so - that is all we do. */ - case duplicate: - bufp->can_be_null = 1; - goto done; - - - /* Following are the cases which match a character. These end - with `break'. */ - -#ifdef WCHAR - case exactn: - fastmap[truncate_wchar(p[1])] = 1; - break; -#else /* BYTE */ - case exactn: - fastmap[p[1]] = 1; - break; -#endif /* WCHAR */ -#ifdef MBS_SUPPORT - case exactn_bin: - fastmap[p[1]] = 1; - break; -#endif - -#ifdef WCHAR - /* It is hard to distinguish fastmap from (multi byte) characters - which depends on current locale. */ - case charset: - case charset_not: - case wordchar: - case notwordchar: - bufp->can_be_null = 1; - goto done; -#else /* BYTE */ - case charset: - for (j = *p++ * BYTEWIDTH - 1; j >= 0; j--) - if (p[j / BYTEWIDTH] & (1 << (j % BYTEWIDTH))) - fastmap[j] = 1; - break; - - - case charset_not: - /* Chars beyond end of map must be allowed. */ - for (j = *p * BYTEWIDTH; j < (1 << BYTEWIDTH); j++) - fastmap[j] = 1; - - for (j = *p++ * BYTEWIDTH - 1; j >= 0; j--) - if (!(p[j / BYTEWIDTH] & (1 << (j % BYTEWIDTH)))) - fastmap[j] = 1; - break; - - - case wordchar: - for (j = 0; j < (1 << BYTEWIDTH); j++) - if (SYNTAX (j) == Sword) - fastmap[j] = 1; - break; - - - case notwordchar: - for (j = 0; j < (1 << BYTEWIDTH); j++) - if (SYNTAX (j) != Sword) - fastmap[j] = 1; - break; -#endif /* WCHAR */ - - case anychar: - { - int fastmap_newline = fastmap['\n']; - - /* `.' matches anything ... */ - for (j = 0; j < (1 << BYTEWIDTH); j++) - fastmap[j] = 1; - - /* ... except perhaps newline. */ - if (!(bufp->syntax & RE_DOT_NEWLINE)) - fastmap['\n'] = fastmap_newline; - - /* Return if we have already set `can_be_null'; if we have, - then the fastmap is irrelevant. Something's wrong here. */ - else if (bufp->can_be_null) - goto done; - - /* Otherwise, have to check alternative paths. */ - break; - } - -#ifdef emacs - case syntaxspec: - k = *p++; - for (j = 0; j < (1 << BYTEWIDTH); j++) - if (SYNTAX (j) == (enum syntaxcode) k) - fastmap[j] = 1; - break; - - - case notsyntaxspec: - k = *p++; - for (j = 0; j < (1 << BYTEWIDTH); j++) - if (SYNTAX (j) != (enum syntaxcode) k) - fastmap[j] = 1; - break; - - - /* All cases after this match the empty string. These end with - `continue'. */ - - - case before_dot: - case at_dot: - case after_dot: - continue; -#endif /* emacs */ - - - case no_op: - case begline: - case endline: - case begbuf: - case endbuf: - case wordbound: - case notwordbound: - case wordbeg: - case wordend: - case push_dummy_failure: - continue; - - - case jump_n: - case pop_failure_jump: - case maybe_pop_jump: - case jump: - case jump_past_alt: - case dummy_failure_jump: - EXTRACT_NUMBER_AND_INCR (j, p); - p += j; - if (j > 0) - continue; - - /* Jump backward implies we just went through the body of a - loop and matched nothing. Opcode jumped to should be - `on_failure_jump' or `succeed_n'. Just treat it like an - ordinary jump. For a * loop, it has pushed its failure - point already; if so, discard that as redundant. */ - if ((re_opcode_t) *p != on_failure_jump - && (re_opcode_t) *p != succeed_n) - continue; - - p++; - EXTRACT_NUMBER_AND_INCR (j, p); - p += j; - - /* If what's on the stack is where we are now, pop it. */ - if (!FAIL_STACK_EMPTY () - && fail_stack.stack[fail_stack.avail - 1].pointer == p) - fail_stack.avail--; - - continue; - - - case on_failure_jump: - case on_failure_keep_string_jump: - handle_on_failure_jump: - EXTRACT_NUMBER_AND_INCR (j, p); - - /* For some patterns, e.g., `(a?)?', `p+j' here points to the - end of the pattern. We don't want to push such a point, - since when we restore it above, entering the switch will - increment `p' past the end of the pattern. We don't need - to push such a point since we obviously won't find any more - fastmap entries beyond `pend'. Such a pattern can match - the null string, though. */ - if (p + j < pend) - { - if (!PUSH_PATTERN_OP (p + j, fail_stack)) - { - RESET_FAIL_STACK (); - return -2; - } - } - else - bufp->can_be_null = 1; - - if (succeed_n_p) - { - EXTRACT_NUMBER_AND_INCR (k, p); /* Skip the n. */ - succeed_n_p = false; - } - - continue; - - - case succeed_n: - /* Get to the number of times to succeed. */ - p += OFFSET_ADDRESS_SIZE; - - /* Increment p past the n for when k != 0. */ - EXTRACT_NUMBER_AND_INCR (k, p); - if (k == 0) - { - p -= 2 * OFFSET_ADDRESS_SIZE; - succeed_n_p = true; /* Spaghetti code alert. */ - goto handle_on_failure_jump; - } - continue; - - - case set_number_at: - p += 2 * OFFSET_ADDRESS_SIZE; - continue; - - - case start_memory: - case stop_memory: - p += 2; - continue; - - - default: - abort (); /* We have listed all the cases. */ - } /* switch *p++ */ - - /* Getting here means we have found the possible starting - characters for one path of the pattern -- and that the empty - string does not match. We need not follow this path further. - Instead, look at the next alternative (remembered on the - stack), or quit if no more. The test at the top of the loop - does these things. */ - path_can_be_null = false; - p = pend; - } /* while p */ - - /* Set `can_be_null' for the last path (also the first path, if the - pattern is empty). */ - bufp->can_be_null |= path_can_be_null; - - done: - RESET_FAIL_STACK (); - return 0; -} - -#else /* not INSIDE_RECURSION */ - -int -re_compile_fastmap (bufp) - struct re_pattern_buffer *bufp; -{ -# ifdef MBS_SUPPORT - if (MB_CUR_MAX != 1) - return wcs_re_compile_fastmap(bufp); - else -# endif - return byte_re_compile_fastmap(bufp); -} /* re_compile_fastmap */ -#ifdef _LIBC -weak_alias (__re_compile_fastmap, re_compile_fastmap) -#endif - - - -/* Set REGS to hold NUM_REGS registers, storing them in STARTS and - ENDS. Subsequent matches using PATTERN_BUFFER and REGS will use - this memory for recording register information. STARTS and ENDS - must be allocated using the malloc library routine, and must each - be at least NUM_REGS * sizeof (regoff_t) bytes long. - - If NUM_REGS == 0, then subsequent matches should allocate their own - register data. - - Unless this function is called, the first search or match using - PATTERN_BUFFER will allocate its own register data, without - freeing the old data. */ - -void -re_set_registers (bufp, regs, num_regs, starts, ends) - struct re_pattern_buffer *bufp; - struct re_registers *regs; - unsigned num_regs; - regoff_t *starts, *ends; -{ - if (num_regs) - { - bufp->regs_allocated = REGS_REALLOCATE; - regs->num_regs = num_regs; - regs->start = starts; - regs->end = ends; - } - else - { - bufp->regs_allocated = REGS_UNALLOCATED; - regs->num_regs = 0; - regs->start = regs->end = (regoff_t *) 0; - } -} -#ifdef _LIBC -weak_alias (__re_set_registers, re_set_registers) -#endif - - -/* Searching routines. */ - -/* Like re_search_2, below, but only one string is specified, and - doesn't let you say where to stop matching. */ - -int -re_search (bufp, string, size, startpos, range, regs) - struct re_pattern_buffer *bufp; - const char *string; - int size, startpos, range; - struct re_registers *regs; -{ - return re_search_2 (bufp, NULL, 0, string, size, startpos, range, - regs, size); -} -#ifdef _LIBC -weak_alias (__re_search, re_search) -#endif - - -/* Using the compiled pattern in BUFP->buffer, first tries to match the - virtual concatenation of STRING1 and STRING2, starting first at index - STARTPOS, then at STARTPOS + 1, and so on. - - STRING1 and STRING2 have length SIZE1 and SIZE2, respectively. - - RANGE is how far to scan while trying to match. RANGE = 0 means try - only at STARTPOS; in general, the last start tried is STARTPOS + - RANGE. - - In REGS, return the indices of the virtual concatenation of STRING1 - and STRING2 that matched the entire BUFP->buffer and its contained - subexpressions. - - Do not consider matching one past the index STOP in the virtual - concatenation of STRING1 and STRING2. - - We return either the position in the strings at which the match was - found, -1 if no match, or -2 if error (such as failure - stack overflow). */ - -int -re_search_2 (bufp, string1, size1, string2, size2, startpos, range, regs, stop) - struct re_pattern_buffer *bufp; - const char *string1, *string2; - int size1, size2; - int startpos; - int range; - struct re_registers *regs; - int stop; -{ -# ifdef MBS_SUPPORT - if (MB_CUR_MAX != 1) - return wcs_re_search_2 (bufp, string1, size1, string2, size2, startpos, - range, regs, stop); - else -# endif - return byte_re_search_2 (bufp, string1, size1, string2, size2, startpos, - range, regs, stop); -} /* re_search_2 */ -#ifdef _LIBC -weak_alias (__re_search_2, re_search_2) -#endif - -#endif /* not INSIDE_RECURSION */ - -#ifdef INSIDE_RECURSION - -#ifdef MATCH_MAY_ALLOCATE -# define FREE_VAR(var) if (var) REGEX_FREE (var); var = NULL -#else -# define FREE_VAR(var) if (var) free (var); var = NULL -#endif - -#ifdef WCHAR -# define MAX_ALLOCA_SIZE 2000 - -# define FREE_WCS_BUFFERS() \ - do { \ - if (size1 > MAX_ALLOCA_SIZE) \ - { \ - free (wcs_string1); \ - free (mbs_offset1); \ - } \ - else \ - { \ - FREE_VAR (wcs_string1); \ - FREE_VAR (mbs_offset1); \ - } \ - if (size2 > MAX_ALLOCA_SIZE) \ - { \ - free (wcs_string2); \ - free (mbs_offset2); \ - } \ - else \ - { \ - FREE_VAR (wcs_string2); \ - FREE_VAR (mbs_offset2); \ - } \ - } while (0) - -#endif - - -static int -PREFIX(re_search_2) (bufp, string1, size1, string2, size2, startpos, range, - regs, stop) - struct re_pattern_buffer *bufp; - const char *string1, *string2; - int size1, size2; - int startpos; - int range; - struct re_registers *regs; - int stop; -{ - int val; - register char *fastmap = bufp->fastmap; - register RE_TRANSLATE_TYPE translate = bufp->translate; - int total_size = size1 + size2; - int endpos = startpos + range; -#ifdef WCHAR - /* We need wchar_t* buffers correspond to cstring1, cstring2. */ - wchar_t *wcs_string1 = NULL, *wcs_string2 = NULL; - /* We need the size of wchar_t buffers correspond to csize1, csize2. */ - int wcs_size1 = 0, wcs_size2 = 0; - /* offset buffer for optimizatoin. See convert_mbs_to_wc. */ - int *mbs_offset1 = NULL, *mbs_offset2 = NULL; - /* They hold whether each wchar_t is binary data or not. */ - char *is_binary = NULL; -#endif /* WCHAR */ - - /* Check for out-of-range STARTPOS. */ - if (startpos < 0 || startpos > total_size) - return -1; - - /* Fix up RANGE if it might eventually take us outside - the virtual concatenation of STRING1 and STRING2. - Make sure we won't move STARTPOS below 0 or above TOTAL_SIZE. */ - if (endpos < 0) - range = 0 - startpos; - else if (endpos > total_size) - range = total_size - startpos; - - /* If the search isn't to be a backwards one, don't waste time in a - search for a pattern that must be anchored. */ - if (bufp->used > 0 && range > 0 - && ((re_opcode_t) bufp->buffer[0] == begbuf - /* `begline' is like `begbuf' if it cannot match at newlines. */ - || ((re_opcode_t) bufp->buffer[0] == begline - && !bufp->newline_anchor))) - { - if (startpos > 0) - return -1; - else - range = 1; - } - -#ifdef emacs - /* In a forward search for something that starts with \=. - don't keep searching past point. */ - if (bufp->used > 0 && (re_opcode_t) bufp->buffer[0] == at_dot && range > 0) - { - range = PT - startpos; - if (range <= 0) - return -1; - } -#endif /* emacs */ - - /* Update the fastmap now if not correct already. */ - if (fastmap && !bufp->fastmap_accurate) - if (re_compile_fastmap (bufp) == -2) - return -2; - -#ifdef WCHAR - /* Allocate wchar_t array for wcs_string1 and wcs_string2 and - fill them with converted string. */ - if (size1 != 0) - { - if (size1 > MAX_ALLOCA_SIZE) - { - wcs_string1 = TALLOC (size1 + 1, CHAR_T); - mbs_offset1 = TALLOC (size1 + 1, int); - is_binary = TALLOC (size1 + 1, char); - } - else - { - wcs_string1 = REGEX_TALLOC (size1 + 1, CHAR_T); - mbs_offset1 = REGEX_TALLOC (size1 + 1, int); - is_binary = REGEX_TALLOC (size1 + 1, char); - } - if (!wcs_string1 || !mbs_offset1 || !is_binary) - { - if (size1 > MAX_ALLOCA_SIZE) - { - free (wcs_string1); - free (mbs_offset1); - free (is_binary); - } - else - { - FREE_VAR (wcs_string1); - FREE_VAR (mbs_offset1); - FREE_VAR (is_binary); - } - return -2; - } - wcs_size1 = convert_mbs_to_wcs(wcs_string1, string1, size1, - mbs_offset1, is_binary); - wcs_string1[wcs_size1] = L'\0'; /* for a sentinel */ - if (size1 > MAX_ALLOCA_SIZE) - free (is_binary); - else - FREE_VAR (is_binary); - } - if (size2 != 0) - { - if (size2 > MAX_ALLOCA_SIZE) - { - wcs_string2 = TALLOC (size2 + 1, CHAR_T); - mbs_offset2 = TALLOC (size2 + 1, int); - is_binary = TALLOC (size2 + 1, char); - } - else - { - wcs_string2 = REGEX_TALLOC (size2 + 1, CHAR_T); - mbs_offset2 = REGEX_TALLOC (size2 + 1, int); - is_binary = REGEX_TALLOC (size2 + 1, char); - } - if (!wcs_string2 || !mbs_offset2 || !is_binary) - { - FREE_WCS_BUFFERS (); - if (size2 > MAX_ALLOCA_SIZE) - free (is_binary); - else - FREE_VAR (is_binary); - return -2; - } - wcs_size2 = convert_mbs_to_wcs(wcs_string2, string2, size2, - mbs_offset2, is_binary); - wcs_string2[wcs_size2] = L'\0'; /* for a sentinel */ - if (size2 > MAX_ALLOCA_SIZE) - free (is_binary); - else - FREE_VAR (is_binary); - } -#endif /* WCHAR */ - - - /* Loop through the string, looking for a place to start matching. */ - for (;;) - { - /* If a fastmap is supplied, skip quickly over characters that - cannot be the start of a match. If the pattern can match the - null string, however, we don't need to skip characters; we want - the first null string. */ - if (fastmap && startpos < total_size && !bufp->can_be_null) - { - if (range > 0) /* Searching forwards. */ - { - register const char *d; - register int lim = 0; - int irange = range; - - if (startpos < size1 && startpos + range >= size1) - lim = range - (size1 - startpos); - - d = (startpos >= size1 ? string2 - size1 : string1) + startpos; - - /* Written out as an if-else to avoid testing `translate' - inside the loop. */ - if (translate) - while (range > lim - && !fastmap[(unsigned char) - translate[(unsigned char) *d++]]) - range--; - else - while (range > lim && !fastmap[(unsigned char) *d++]) - range--; - - startpos += irange - range; - } - else /* Searching backwards. */ - { - register CHAR_T c = (size1 == 0 || startpos >= size1 - ? string2[startpos - size1] - : string1[startpos]); - - if (!fastmap[(unsigned char) TRANSLATE (c)]) - goto advance; - } - } - - /* If can't match the null string, and that's all we have left, fail. */ - if (range >= 0 && startpos == total_size && fastmap - && !bufp->can_be_null) - { -#ifdef WCHAR - FREE_WCS_BUFFERS (); -#endif - return -1; - } - -#ifdef WCHAR - val = wcs_re_match_2_internal (bufp, string1, size1, string2, - size2, startpos, regs, stop, - wcs_string1, wcs_size1, - wcs_string2, wcs_size2, - mbs_offset1, mbs_offset2); -#else /* BYTE */ - val = byte_re_match_2_internal (bufp, string1, size1, string2, - size2, startpos, regs, stop); -#endif /* BYTE */ - -#ifndef REGEX_MALLOC -# ifdef C_ALLOCA - alloca (0); -# endif -#endif - - if (val >= 0) - { -#ifdef WCHAR - FREE_WCS_BUFFERS (); -#endif - return startpos; - } - - if (val == -2) - { -#ifdef WCHAR - FREE_WCS_BUFFERS (); -#endif - return -2; - } - - advance: - if (!range) - break; - else if (range > 0) - { - range--; - startpos++; - } - else - { - range++; - startpos--; - } - } -#ifdef WCHAR - FREE_WCS_BUFFERS (); -#endif - return -1; -} - -#ifdef WCHAR -/* This converts PTR, a pointer into one of the search wchar_t strings - `string1' and `string2' into an multibyte string offset from the - beginning of that string. We use mbs_offset to optimize. - See convert_mbs_to_wcs. */ -# define POINTER_TO_OFFSET(ptr) \ - (FIRST_STRING_P (ptr) \ - ? ((regoff_t)(mbs_offset1 != NULL? mbs_offset1[(ptr)-string1] : 0)) \ - : ((regoff_t)((mbs_offset2 != NULL? mbs_offset2[(ptr)-string2] : 0) \ - + csize1))) -#else /* BYTE */ -/* This converts PTR, a pointer into one of the search strings `string1' - and `string2' into an offset from the beginning of that string. */ -# define POINTER_TO_OFFSET(ptr) \ - (FIRST_STRING_P (ptr) \ - ? ((regoff_t) ((ptr) - string1)) \ - : ((regoff_t) ((ptr) - string2 + size1))) -#endif /* WCHAR */ - -/* Macros for dealing with the split strings in re_match_2. */ - -#define MATCHING_IN_FIRST_STRING (dend == end_match_1) - -/* Call before fetching a character with *d. This switches over to - string2 if necessary. */ -#define PREFETCH() \ - while (d == dend) \ - { \ - /* End of string2 => fail. */ \ - if (dend == end_match_2) \ - goto fail; \ - /* End of string1 => advance to string2. */ \ - d = string2; \ - dend = end_match_2; \ - } - -/* Test if at very beginning or at very end of the virtual concatenation - of `string1' and `string2'. If only one string, it's `string2'. */ -#define AT_STRINGS_BEG(d) ((d) == (size1 ? string1 : string2) || !size2) -#define AT_STRINGS_END(d) ((d) == end2) - - -/* Test if D points to a character which is word-constituent. We have - two special cases to check for: if past the end of string1, look at - the first character in string2; and if before the beginning of - string2, look at the last character in string1. */ -#ifdef WCHAR -/* Use internationalized API instead of SYNTAX. */ -# define WORDCHAR_P(d) \ - (iswalnum ((wint_t)((d) == end1 ? *string2 \ - : (d) == string2 - 1 ? *(end1 - 1) : *(d))) != 0 \ - || ((d) == end1 ? *string2 \ - : (d) == string2 - 1 ? *(end1 - 1) : *(d)) == L'_') -#else /* BYTE */ -# define WORDCHAR_P(d) \ - (SYNTAX ((d) == end1 ? *string2 \ - : (d) == string2 - 1 ? *(end1 - 1) : *(d)) \ - == Sword) -#endif /* WCHAR */ - -/* Disabled due to a compiler bug -- see comment at case wordbound */ -#if 0 -/* Test if the character before D and the one at D differ with respect - to being word-constituent. */ -#define AT_WORD_BOUNDARY(d) \ - (AT_STRINGS_BEG (d) || AT_STRINGS_END (d) \ - || WORDCHAR_P (d - 1) != WORDCHAR_P (d)) -#endif - -/* Free everything we malloc. */ -#ifdef MATCH_MAY_ALLOCATE -# ifdef WCHAR -# define FREE_VARIABLES() \ - do { \ - REGEX_FREE_STACK (fail_stack.stack); \ - FREE_VAR (regstart); \ - FREE_VAR (regend); \ - FREE_VAR (old_regstart); \ - FREE_VAR (old_regend); \ - FREE_VAR (best_regstart); \ - FREE_VAR (best_regend); \ - FREE_VAR (reg_info); \ - FREE_VAR (reg_dummy); \ - FREE_VAR (reg_info_dummy); \ - if (!cant_free_wcs_buf) \ - { \ - FREE_VAR (string1); \ - FREE_VAR (string2); \ - FREE_VAR (mbs_offset1); \ - FREE_VAR (mbs_offset2); \ - } \ - } while (0) -# else /* BYTE */ -# define FREE_VARIABLES() \ - do { \ - REGEX_FREE_STACK (fail_stack.stack); \ - FREE_VAR (regstart); \ - FREE_VAR (regend); \ - FREE_VAR (old_regstart); \ - FREE_VAR (old_regend); \ - FREE_VAR (best_regstart); \ - FREE_VAR (best_regend); \ - FREE_VAR (reg_info); \ - FREE_VAR (reg_dummy); \ - FREE_VAR (reg_info_dummy); \ - } while (0) -# endif /* WCHAR */ -#else -# ifdef WCHAR -# define FREE_VARIABLES() \ - do { \ - if (!cant_free_wcs_buf) \ - { \ - FREE_VAR (string1); \ - FREE_VAR (string2); \ - FREE_VAR (mbs_offset1); \ - FREE_VAR (mbs_offset2); \ - } \ - } while (0) -# else /* BYTE */ -# define FREE_VARIABLES() ((void)0) /* Do nothing! But inhibit gcc warning. */ -# endif /* WCHAR */ -#endif /* not MATCH_MAY_ALLOCATE */ - -/* These values must meet several constraints. They must not be valid - register values; since we have a limit of 255 registers (because - we use only one byte in the pattern for the register number), we can - use numbers larger than 255. They must differ by 1, because of - NUM_FAILURE_ITEMS above. And the value for the lowest register must - be larger than the value for the highest register, so we do not try - to actually save any registers when none are active. */ -#define NO_HIGHEST_ACTIVE_REG (1 << BYTEWIDTH) -#define NO_LOWEST_ACTIVE_REG (NO_HIGHEST_ACTIVE_REG + 1) - - -#else /* not INSIDE_RECURSION */ -/* Matching routines. */ - -#ifndef emacs /* Emacs never uses this. */ -/* re_match is like re_match_2 except it takes only a single string. */ - -int -re_match (bufp, string, size, pos, regs) - struct re_pattern_buffer *bufp; - const char *string; - int size, pos; - struct re_registers *regs; -{ - int result; -# ifdef MBS_SUPPORT - if (MB_CUR_MAX != 1) - result = wcs_re_match_2_internal (bufp, NULL, 0, string, size, - pos, regs, size, - NULL, 0, NULL, 0, NULL, NULL); - else -# endif - result = byte_re_match_2_internal (bufp, NULL, 0, string, size, - pos, regs, size); -# ifndef REGEX_MALLOC -# ifdef C_ALLOCA - alloca (0); -# endif -# endif - return result; -} -# ifdef _LIBC -weak_alias (__re_match, re_match) -# endif -#endif /* not emacs */ - -#endif /* not INSIDE_RECURSION */ - -#ifdef INSIDE_RECURSION -static boolean PREFIX(group_match_null_string_p) _RE_ARGS ((UCHAR_T **p, - UCHAR_T *end, - PREFIX(register_info_type) *reg_info)); -static boolean PREFIX(alt_match_null_string_p) _RE_ARGS ((UCHAR_T *p, - UCHAR_T *end, - PREFIX(register_info_type) *reg_info)); -static boolean PREFIX(common_op_match_null_string_p) _RE_ARGS ((UCHAR_T **p, - UCHAR_T *end, - PREFIX(register_info_type) *reg_info)); -static int PREFIX(bcmp_translate) _RE_ARGS ((const CHAR_T *s1, const CHAR_T *s2, - int len, char *translate)); -#else /* not INSIDE_RECURSION */ - -/* re_match_2 matches the compiled pattern in BUFP against the - the (virtual) concatenation of STRING1 and STRING2 (of length SIZE1 - and SIZE2, respectively). We start matching at POS, and stop - matching at STOP. - - If REGS is non-null and the `no_sub' field of BUFP is nonzero, we - store offsets for the substring each group matched in REGS. See the - documentation for exactly how many groups we fill. - - We return -1 if no match, -2 if an internal error (such as the - failure stack overflowing). Otherwise, we return the length of the - matched substring. */ - -int -re_match_2 (bufp, string1, size1, string2, size2, pos, regs, stop) - struct re_pattern_buffer *bufp; - const char *string1, *string2; - int size1, size2; - int pos; - struct re_registers *regs; - int stop; -{ - int result; -# ifdef MBS_SUPPORT - if (MB_CUR_MAX != 1) - result = wcs_re_match_2_internal (bufp, string1, size1, string2, size2, - pos, regs, stop, - NULL, 0, NULL, 0, NULL, NULL); - else -# endif - result = byte_re_match_2_internal (bufp, string1, size1, string2, size2, - pos, regs, stop); - -#ifndef REGEX_MALLOC -# ifdef C_ALLOCA - alloca (0); -# endif -#endif - return result; -} -#ifdef _LIBC -weak_alias (__re_match_2, re_match_2) -#endif - -#endif /* not INSIDE_RECURSION */ - -#ifdef INSIDE_RECURSION - -#ifdef WCHAR -static int count_mbs_length PARAMS ((int *, int)); - -/* This check the substring (from 0, to length) of the multibyte string, - to which offset_buffer correspond. And count how many wchar_t_characters - the substring occupy. We use offset_buffer to optimization. - See convert_mbs_to_wcs. */ - -static int -count_mbs_length(offset_buffer, length) - int *offset_buffer; - int length; -{ - int upper, lower; - - /* Check whether the size is valid. */ - if (length < 0) - return -1; - - if (offset_buffer == NULL) - return 0; - - /* If there are no multibyte character, offset_buffer[i] == i. - Optmize for this case. */ - if (offset_buffer[length] == length) - return length; - - /* Set up upper with length. (because for all i, offset_buffer[i] >= i) */ - upper = length; - lower = 0; - - while (true) - { - int middle = (lower + upper) / 2; - if (middle == lower || middle == upper) - break; - if (offset_buffer[middle] > length) - upper = middle; - else if (offset_buffer[middle] < length) - lower = middle; - else - return middle; - } - - return -1; -} -#endif /* WCHAR */ - -/* This is a separate function so that we can force an alloca cleanup - afterwards. */ -#ifdef WCHAR -static int -wcs_re_match_2_internal (bufp, cstring1, csize1, cstring2, csize2, pos, - regs, stop, string1, size1, string2, size2, - mbs_offset1, mbs_offset2) - struct re_pattern_buffer *bufp; - const char *cstring1, *cstring2; - int csize1, csize2; - int pos; - struct re_registers *regs; - int stop; - /* string1 == string2 == NULL means string1/2, size1/2 and - mbs_offset1/2 need seting up in this function. */ - /* We need wchar_t* buffers correspond to cstring1, cstring2. */ - wchar_t *string1, *string2; - /* We need the size of wchar_t buffers correspond to csize1, csize2. */ - int size1, size2; - /* offset buffer for optimizatoin. See convert_mbs_to_wc. */ - int *mbs_offset1, *mbs_offset2; -#else /* BYTE */ -static int -byte_re_match_2_internal (bufp, string1, size1,string2, size2, pos, - regs, stop) - struct re_pattern_buffer *bufp; - const char *string1, *string2; - int size1, size2; - int pos; - struct re_registers *regs; - int stop; -#endif /* BYTE */ -{ - /* General temporaries. */ - int mcnt; - UCHAR_T *p1; -#ifdef WCHAR - /* They hold whether each wchar_t is binary data or not. */ - char *is_binary = NULL; - /* If true, we can't free string1/2, mbs_offset1/2. */ - int cant_free_wcs_buf = 1; -#endif /* WCHAR */ - - /* Just past the end of the corresponding string. */ - const CHAR_T *end1, *end2; - - /* Pointers into string1 and string2, just past the last characters in - each to consider matching. */ - const CHAR_T *end_match_1, *end_match_2; - - /* Where we are in the data, and the end of the current string. */ - const CHAR_T *d, *dend; - - /* Where we are in the pattern, and the end of the pattern. */ -#ifdef WCHAR - UCHAR_T *pattern, *p; - register UCHAR_T *pend; -#else /* BYTE */ - UCHAR_T *p = bufp->buffer; - register UCHAR_T *pend = p + bufp->used; -#endif /* WCHAR */ - - /* Mark the opcode just after a start_memory, so we can test for an - empty subpattern when we get to the stop_memory. */ - UCHAR_T *just_past_start_mem = 0; - - /* We use this to map every character in the string. */ - RE_TRANSLATE_TYPE translate = bufp->translate; - - /* Failure point stack. Each place that can handle a failure further - down the line pushes a failure point on this stack. It consists of - restart, regend, and reg_info for all registers corresponding to - the subexpressions we're currently inside, plus the number of such - registers, and, finally, two char *'s. The first char * is where - to resume scanning the pattern; the second one is where to resume - scanning the strings. If the latter is zero, the failure point is - a ``dummy''; if a failure happens and the failure point is a dummy, - it gets discarded and the next next one is tried. */ -#ifdef MATCH_MAY_ALLOCATE /* otherwise, this is global. */ - PREFIX(fail_stack_type) fail_stack; -#endif -#ifdef DEBUG - static unsigned failure_id; - unsigned nfailure_points_pushed = 0, nfailure_points_popped = 0; -#endif - -#ifdef REL_ALLOC - /* This holds the pointer to the failure stack, when - it is allocated relocatably. */ - fail_stack_elt_t *failure_stack_ptr; -#endif - - /* We fill all the registers internally, independent of what we - return, for use in backreferences. The number here includes - an element for register zero. */ - size_t num_regs = bufp->re_nsub + 1; - - /* The currently active registers. */ - active_reg_t lowest_active_reg = NO_LOWEST_ACTIVE_REG; - active_reg_t highest_active_reg = NO_HIGHEST_ACTIVE_REG; - - /* Information on the contents of registers. These are pointers into - the input strings; they record just what was matched (on this - attempt) by a subexpression part of the pattern, that is, the - regnum-th regstart pointer points to where in the pattern we began - matching and the regnum-th regend points to right after where we - stopped matching the regnum-th subexpression. (The zeroth register - keeps track of what the whole pattern matches.) */ -#ifdef MATCH_MAY_ALLOCATE /* otherwise, these are global. */ - const CHAR_T **regstart, **regend; -#endif - - /* If a group that's operated upon by a repetition operator fails to - match anything, then the register for its start will need to be - restored because it will have been set to wherever in the string we - are when we last see its open-group operator. Similarly for a - register's end. */ -#ifdef MATCH_MAY_ALLOCATE /* otherwise, these are global. */ - const CHAR_T **old_regstart, **old_regend; -#endif - - /* The is_active field of reg_info helps us keep track of which (possibly - nested) subexpressions we are currently in. The matched_something - field of reg_info[reg_num] helps us tell whether or not we have - matched any of the pattern so far this time through the reg_num-th - subexpression. These two fields get reset each time through any - loop their register is in. */ -#ifdef MATCH_MAY_ALLOCATE /* otherwise, this is global. */ - PREFIX(register_info_type) *reg_info; -#endif - - /* The following record the register info as found in the above - variables when we find a match better than any we've seen before. - This happens as we backtrack through the failure points, which in - turn happens only if we have not yet matched the entire string. */ - unsigned best_regs_set = false; -#ifdef MATCH_MAY_ALLOCATE /* otherwise, these are global. */ - const CHAR_T **best_regstart, **best_regend; -#endif - - /* Logically, this is `best_regend[0]'. But we don't want to have to - allocate space for that if we're not allocating space for anything - else (see below). Also, we never need info about register 0 for - any of the other register vectors, and it seems rather a kludge to - treat `best_regend' differently than the rest. So we keep track of - the end of the best match so far in a separate variable. We - initialize this to NULL so that when we backtrack the first time - and need to test it, it's not garbage. */ - const CHAR_T *match_end = NULL; - - /* This helps SET_REGS_MATCHED avoid doing redundant work. */ - int set_regs_matched_done = 0; - - /* Used when we pop values we don't care about. */ -#ifdef MATCH_MAY_ALLOCATE /* otherwise, these are global. */ - const CHAR_T **reg_dummy; - PREFIX(register_info_type) *reg_info_dummy; -#endif - -#ifdef DEBUG - /* Counts the total number of registers pushed. */ - unsigned num_regs_pushed = 0; -#endif - - DEBUG_PRINT1 ("\n\nEntering re_match_2.\n"); - - INIT_FAIL_STACK (); - -#ifdef MATCH_MAY_ALLOCATE - /* Do not bother to initialize all the register variables if there are - no groups in the pattern, as it takes a fair amount of time. If - there are groups, we include space for register 0 (the whole - pattern), even though we never use it, since it simplifies the - array indexing. We should fix this. */ - if (bufp->re_nsub) - { - regstart = REGEX_TALLOC (num_regs, const CHAR_T *); - regend = REGEX_TALLOC (num_regs, const CHAR_T *); - old_regstart = REGEX_TALLOC (num_regs, const CHAR_T *); - old_regend = REGEX_TALLOC (num_regs, const CHAR_T *); - best_regstart = REGEX_TALLOC (num_regs, const CHAR_T *); - best_regend = REGEX_TALLOC (num_regs, const CHAR_T *); - reg_info = REGEX_TALLOC (num_regs, PREFIX(register_info_type)); - reg_dummy = REGEX_TALLOC (num_regs, const CHAR_T *); - reg_info_dummy = REGEX_TALLOC (num_regs, PREFIX(register_info_type)); - - if (!(regstart && regend && old_regstart && old_regend && reg_info - && best_regstart && best_regend && reg_dummy && reg_info_dummy)) - { - FREE_VARIABLES (); - return -2; - } - } - else - { - /* We must initialize all our variables to NULL, so that - `FREE_VARIABLES' doesn't try to free them. */ - regstart = regend = old_regstart = old_regend = best_regstart - = best_regend = reg_dummy = NULL; - reg_info = reg_info_dummy = (PREFIX(register_info_type) *) NULL; - } -#endif /* MATCH_MAY_ALLOCATE */ - - /* The starting position is bogus. */ -#ifdef WCHAR - if (pos < 0 || pos > csize1 + csize2) -#else /* BYTE */ - if (pos < 0 || pos > size1 + size2) -#endif - { - FREE_VARIABLES (); - return -1; - } - -#ifdef WCHAR - /* Allocate wchar_t array for string1 and string2 and - fill them with converted string. */ - if (string1 == NULL && string2 == NULL) - { - /* We need seting up buffers here. */ - - /* We must free wcs buffers in this function. */ - cant_free_wcs_buf = 0; - - if (csize1 != 0) - { - string1 = REGEX_TALLOC (csize1 + 1, CHAR_T); - mbs_offset1 = REGEX_TALLOC (csize1 + 1, int); - is_binary = REGEX_TALLOC (csize1 + 1, char); - if (!string1 || !mbs_offset1 || !is_binary) - { - FREE_VAR (string1); - FREE_VAR (mbs_offset1); - FREE_VAR (is_binary); - return -2; - } - } - if (csize2 != 0) - { - string2 = REGEX_TALLOC (csize2 + 1, CHAR_T); - mbs_offset2 = REGEX_TALLOC (csize2 + 1, int); - is_binary = REGEX_TALLOC (csize2 + 1, char); - if (!string2 || !mbs_offset2 || !is_binary) - { - FREE_VAR (string1); - FREE_VAR (mbs_offset1); - FREE_VAR (string2); - FREE_VAR (mbs_offset2); - FREE_VAR (is_binary); - return -2; - } - size2 = convert_mbs_to_wcs(string2, cstring2, csize2, - mbs_offset2, is_binary); - string2[size2] = L'\0'; /* for a sentinel */ - FREE_VAR (is_binary); - } - } - - /* We need to cast pattern to (wchar_t*), because we casted this compiled - pattern to (char*) in regex_compile. */ - p = pattern = (CHAR_T*)bufp->buffer; - pend = (CHAR_T*)(bufp->buffer + bufp->used); - -#endif /* WCHAR */ - - /* Initialize subexpression text positions to -1 to mark ones that no - start_memory/stop_memory has been seen for. Also initialize the - register information struct. */ - for (mcnt = 1; (unsigned) mcnt < num_regs; mcnt++) - { - regstart[mcnt] = regend[mcnt] - = old_regstart[mcnt] = old_regend[mcnt] = REG_UNSET_VALUE; - - REG_MATCH_NULL_STRING_P (reg_info[mcnt]) = MATCH_NULL_UNSET_VALUE; - IS_ACTIVE (reg_info[mcnt]) = 0; - MATCHED_SOMETHING (reg_info[mcnt]) = 0; - EVER_MATCHED_SOMETHING (reg_info[mcnt]) = 0; - } - - /* We move `string1' into `string2' if the latter's empty -- but not if - `string1' is null. */ - if (size2 == 0 && string1 != NULL) - { - string2 = string1; - size2 = size1; - string1 = 0; - size1 = 0; -#ifdef WCHAR - mbs_offset2 = mbs_offset1; - csize2 = csize1; - mbs_offset1 = NULL; - csize1 = 0; -#endif - } - end1 = string1 + size1; - end2 = string2 + size2; - - /* Compute where to stop matching, within the two strings. */ -#ifdef WCHAR - if (stop <= csize1) - { - mcnt = count_mbs_length(mbs_offset1, stop); - end_match_1 = string1 + mcnt; - end_match_2 = string2; - } - else - { - if (stop > csize1 + csize2) - stop = csize1 + csize2; - end_match_1 = end1; - mcnt = count_mbs_length(mbs_offset2, stop-csize1); - end_match_2 = string2 + mcnt; - } - if (mcnt < 0) - { /* count_mbs_length return error. */ - FREE_VARIABLES (); - return -1; - } -#else - if (stop <= size1) - { - end_match_1 = string1 + stop; - end_match_2 = string2; - } - else - { - end_match_1 = end1; - end_match_2 = string2 + stop - size1; - } -#endif /* WCHAR */ - - /* `p' scans through the pattern as `d' scans through the data. - `dend' is the end of the input string that `d' points within. `d' - is advanced into the following input string whenever necessary, but - this happens before fetching; therefore, at the beginning of the - loop, `d' can be pointing at the end of a string, but it cannot - equal `string2'. */ -#ifdef WCHAR - if (size1 > 0 && pos <= csize1) - { - mcnt = count_mbs_length(mbs_offset1, pos); - d = string1 + mcnt; - dend = end_match_1; - } - else - { - mcnt = count_mbs_length(mbs_offset2, pos-csize1); - d = string2 + mcnt; - dend = end_match_2; - } - - if (mcnt < 0) - { /* count_mbs_length return error. */ - FREE_VARIABLES (); - return -1; - } -#else - if (size1 > 0 && pos <= size1) - { - d = string1 + pos; - dend = end_match_1; - } - else - { - d = string2 + pos - size1; - dend = end_match_2; - } -#endif /* WCHAR */ - - DEBUG_PRINT1 ("The compiled pattern is:\n"); - DEBUG_PRINT_COMPILED_PATTERN (bufp, p, pend); - DEBUG_PRINT1 ("The string to match is: `"); - DEBUG_PRINT_DOUBLE_STRING (d, string1, size1, string2, size2); - DEBUG_PRINT1 ("'\n"); - - /* This loops over pattern commands. It exits by returning from the - function if the match is complete, or it drops through if the match - fails at this starting point in the input data. */ - for (;;) - { -#ifdef _LIBC - DEBUG_PRINT2 ("\n%p: ", p); -#else - DEBUG_PRINT2 ("\n0x%x: ", p); -#endif - - if (p == pend) - { /* End of pattern means we might have succeeded. */ - DEBUG_PRINT1 ("end of pattern ... "); - - /* If we haven't matched the entire string, and we want the - longest match, try backtracking. */ - if (d != end_match_2) - { - /* 1 if this match ends in the same string (string1 or string2) - as the best previous match. */ - boolean same_str_p = (FIRST_STRING_P (match_end) - == MATCHING_IN_FIRST_STRING); - /* 1 if this match is the best seen so far. */ - boolean best_match_p; - - /* AIX compiler got confused when this was combined - with the previous declaration. */ - if (same_str_p) - best_match_p = d > match_end; - else - best_match_p = !MATCHING_IN_FIRST_STRING; - - DEBUG_PRINT1 ("backtracking.\n"); - - if (!FAIL_STACK_EMPTY ()) - { /* More failure points to try. */ - - /* If exceeds best match so far, save it. */ - if (!best_regs_set || best_match_p) - { - best_regs_set = true; - match_end = d; - - DEBUG_PRINT1 ("\nSAVING match as best so far.\n"); - - for (mcnt = 1; (unsigned) mcnt < num_regs; mcnt++) - { - best_regstart[mcnt] = regstart[mcnt]; - best_regend[mcnt] = regend[mcnt]; - } - } - goto fail; - } - - /* If no failure points, don't restore garbage. And if - last match is real best match, don't restore second - best one. */ - else if (best_regs_set && !best_match_p) - { - restore_best_regs: - /* Restore best match. It may happen that `dend == - end_match_1' while the restored d is in string2. - For example, the pattern `x.*y.*z' against the - strings `x-' and `y-z-', if the two strings are - not consecutive in memory. */ - DEBUG_PRINT1 ("Restoring best registers.\n"); - - d = match_end; - dend = ((d >= string1 && d <= end1) - ? end_match_1 : end_match_2); - - for (mcnt = 1; (unsigned) mcnt < num_regs; mcnt++) - { - regstart[mcnt] = best_regstart[mcnt]; - regend[mcnt] = best_regend[mcnt]; - } - } - } /* d != end_match_2 */ - - succeed_label: - DEBUG_PRINT1 ("Accepting match.\n"); - /* If caller wants register contents data back, do it. */ - if (regs && !bufp->no_sub) - { - /* Have the register data arrays been allocated? */ - if (bufp->regs_allocated == REGS_UNALLOCATED) - { /* No. So allocate them with malloc. We need one - extra element beyond `num_regs' for the `-1' marker - GNU code uses. */ - regs->num_regs = MAX (RE_NREGS, num_regs + 1); - regs->start = TALLOC (regs->num_regs, regoff_t); - regs->end = TALLOC (regs->num_regs, regoff_t); - if (regs->start == NULL || regs->end == NULL) - { - FREE_VARIABLES (); - return -2; - } - bufp->regs_allocated = REGS_REALLOCATE; - } - else if (bufp->regs_allocated == REGS_REALLOCATE) - { /* Yes. If we need more elements than were already - allocated, reallocate them. If we need fewer, just - leave it alone. */ - if (regs->num_regs < num_regs + 1) - { - regs->num_regs = num_regs + 1; - RETALLOC (regs->start, regs->num_regs, regoff_t); - RETALLOC (regs->end, regs->num_regs, regoff_t); - if (regs->start == NULL || regs->end == NULL) - { - FREE_VARIABLES (); - return -2; - } - } - } - else - { - /* These braces fend off a "empty body in an else-statement" - warning under GCC when assert expands to nothing. */ - assert (bufp->regs_allocated == REGS_FIXED); - } - - /* Convert the pointer data in `regstart' and `regend' to - indices. Register zero has to be set differently, - since we haven't kept track of any info for it. */ - if (regs->num_regs > 0) - { - regs->start[0] = pos; -#ifdef WCHAR - if (MATCHING_IN_FIRST_STRING) - regs->end[0] = mbs_offset1 != NULL ? - mbs_offset1[d-string1] : 0; - else - regs->end[0] = csize1 + (mbs_offset2 != NULL ? - mbs_offset2[d-string2] : 0); -#else - regs->end[0] = (MATCHING_IN_FIRST_STRING - ? ((regoff_t) (d - string1)) - : ((regoff_t) (d - string2 + size1))); -#endif /* WCHAR */ - } - - /* Go through the first `min (num_regs, regs->num_regs)' - registers, since that is all we initialized. */ - for (mcnt = 1; (unsigned) mcnt < MIN (num_regs, regs->num_regs); - mcnt++) - { - if (REG_UNSET (regstart[mcnt]) || REG_UNSET (regend[mcnt])) - regs->start[mcnt] = regs->end[mcnt] = -1; - else - { - regs->start[mcnt] - = (regoff_t) POINTER_TO_OFFSET (regstart[mcnt]); - regs->end[mcnt] - = (regoff_t) POINTER_TO_OFFSET (regend[mcnt]); - } - } - - /* If the regs structure we return has more elements than - were in the pattern, set the extra elements to -1. If - we (re)allocated the registers, this is the case, - because we always allocate enough to have at least one - -1 at the end. */ - for (mcnt = num_regs; (unsigned) mcnt < regs->num_regs; mcnt++) - regs->start[mcnt] = regs->end[mcnt] = -1; - } /* regs && !bufp->no_sub */ - - DEBUG_PRINT4 ("%u failure points pushed, %u popped (%u remain).\n", - nfailure_points_pushed, nfailure_points_popped, - nfailure_points_pushed - nfailure_points_popped); - DEBUG_PRINT2 ("%u registers pushed.\n", num_regs_pushed); - -#ifdef WCHAR - if (MATCHING_IN_FIRST_STRING) - mcnt = mbs_offset1 != NULL ? mbs_offset1[d-string1] : 0; - else - mcnt = (mbs_offset2 != NULL ? mbs_offset2[d-string2] : 0) + - csize1; - mcnt -= pos; -#else - mcnt = d - pos - (MATCHING_IN_FIRST_STRING - ? string1 - : string2 - size1); -#endif /* WCHAR */ - - DEBUG_PRINT2 ("Returning %d from re_match_2.\n", mcnt); - - FREE_VARIABLES (); - return mcnt; - } - - /* Otherwise match next pattern command. */ - switch (SWITCH_ENUM_CAST ((re_opcode_t) *p++)) - { - /* Ignore these. Used to ignore the n of succeed_n's which - currently have n == 0. */ - case no_op: - DEBUG_PRINT1 ("EXECUTING no_op.\n"); - break; - - case succeed: - DEBUG_PRINT1 ("EXECUTING succeed.\n"); - goto succeed_label; - - /* Match the next n pattern characters exactly. The following - byte in the pattern defines n, and the n bytes after that - are the characters to match. */ - case exactn: -#ifdef MBS_SUPPORT - case exactn_bin: -#endif - mcnt = *p++; - DEBUG_PRINT2 ("EXECUTING exactn %d.\n", mcnt); - - /* This is written out as an if-else so we don't waste time - testing `translate' inside the loop. */ - if (translate) - { - do - { - PREFETCH (); -#ifdef WCHAR - if (*d <= 0xff) - { - if ((UCHAR_T) translate[(unsigned char) *d++] - != (UCHAR_T) *p++) - goto fail; - } - else - { - if (*d++ != (CHAR_T) *p++) - goto fail; - } -#else - if ((UCHAR_T) translate[(unsigned char) *d++] - != (UCHAR_T) *p++) - goto fail; -#endif /* WCHAR */ - } - while (--mcnt); - } - else - { - do - { - PREFETCH (); - if (*d++ != (CHAR_T) *p++) goto fail; - } - while (--mcnt); - } - SET_REGS_MATCHED (); - break; - - - /* Match any character except possibly a newline or a null. */ - case anychar: - DEBUG_PRINT1 ("EXECUTING anychar.\n"); - - PREFETCH (); - - if ((!(bufp->syntax & RE_DOT_NEWLINE) && TRANSLATE (*d) == '\n') - || (bufp->syntax & RE_DOT_NOT_NULL && TRANSLATE (*d) == '\000')) - goto fail; - - SET_REGS_MATCHED (); - DEBUG_PRINT2 (" Matched `%ld'.\n", (long int) *d); - d++; - break; - - - case charset: - case charset_not: - { - register UCHAR_T c; -#ifdef WCHAR - unsigned int i, char_class_length, coll_symbol_length, - equiv_class_length, ranges_length, chars_length, length; - CHAR_T *workp, *workp2, *charset_top; -#define WORK_BUFFER_SIZE 128 - CHAR_T str_buf[WORK_BUFFER_SIZE]; -# ifdef _LIBC - uint32_t nrules; -# endif /* _LIBC */ -#endif /* WCHAR */ - boolean not = (re_opcode_t) *(p - 1) == charset_not; - - DEBUG_PRINT2 ("EXECUTING charset%s.\n", not ? "_not" : ""); - PREFETCH (); - c = TRANSLATE (*d); /* The character to match. */ -#ifdef WCHAR -# ifdef _LIBC - nrules = _NL_CURRENT_WORD (LC_COLLATE, _NL_COLLATE_NRULES); -# endif /* _LIBC */ - charset_top = p - 1; - char_class_length = *p++; - coll_symbol_length = *p++; - equiv_class_length = *p++; - ranges_length = *p++; - chars_length = *p++; - /* p points charset[6], so the address of the next instruction - (charset[l+m+n+2o+k+p']) equals p[l+m+n+2*o+p'], - where l=length of char_classes, m=length of collating_symbol, - n=equivalence_class, o=length of char_range, - p'=length of character. */ - workp = p; - /* Update p to indicate the next instruction. */ - p += char_class_length + coll_symbol_length+ equiv_class_length + - 2*ranges_length + chars_length; - - /* match with char_class? */ - for (i = 0; i < char_class_length ; i += CHAR_CLASS_SIZE) - { - wctype_t wctype; - uintptr_t alignedp = ((uintptr_t)workp - + __alignof__(wctype_t) - 1) - & ~(uintptr_t)(__alignof__(wctype_t) - 1); - wctype = *((wctype_t*)alignedp); - workp += CHAR_CLASS_SIZE; -# ifdef _LIBC - if (__iswctype((wint_t)c, wctype)) - goto char_set_matched; -# else - if (iswctype((wint_t)c, wctype)) - goto char_set_matched; -# endif - } - - /* match with collating_symbol? */ -# ifdef _LIBC - if (nrules != 0) - { - const unsigned char *extra = (const unsigned char *) - _NL_CURRENT (LC_COLLATE, _NL_COLLATE_SYMB_EXTRAMB); - - for (workp2 = workp + coll_symbol_length ; workp < workp2 ; - workp++) - { - int32_t *wextra; - wextra = (int32_t*)(extra + *workp++); - for (i = 0; i < *wextra; ++i) - if (TRANSLATE(d[i]) != wextra[1 + i]) - break; - - if (i == *wextra) - { - /* Update d, however d will be incremented at - char_set_matched:, we decrement d here. */ - d += i - 1; - goto char_set_matched; - } - } - } - else /* (nrules == 0) */ -# endif - /* If we can't look up collation data, we use wcscoll - instead. */ - { - for (workp2 = workp + coll_symbol_length ; workp < workp2 ;) - { - const CHAR_T *backup_d = d, *backup_dend = dend; -# ifdef _LIBC - length = __wcslen (workp); -# else - length = wcslen (workp); -# endif - - /* If wcscoll(the collating symbol, whole string) > 0, - any substring of the string never match with the - collating symbol. */ -# ifdef _LIBC - if (__wcscoll (workp, d) > 0) -# else - if (wcscoll (workp, d) > 0) -# endif - { - workp += length + 1; - continue; - } - - /* First, we compare the collating symbol with - the first character of the string. - If it don't match, we add the next character to - the compare buffer in turn. */ - for (i = 0 ; i < WORK_BUFFER_SIZE-1 ; i++, d++) - { - int match; - if (d == dend) - { - if (dend == end_match_2) - break; - d = string2; - dend = end_match_2; - } - - /* add next character to the compare buffer. */ - str_buf[i] = TRANSLATE(*d); - str_buf[i+1] = '\0'; - -# ifdef _LIBC - match = __wcscoll (workp, str_buf); -# else - match = wcscoll (workp, str_buf); -# endif - if (match == 0) - goto char_set_matched; - - if (match < 0) - /* (str_buf > workp) indicate (str_buf + X > workp), - because for all X (str_buf + X > str_buf). - So we don't need continue this loop. */ - break; - - /* Otherwise(str_buf < workp), - (str_buf+next_character) may equals (workp). - So we continue this loop. */ - } - /* not matched */ - d = backup_d; - dend = backup_dend; - workp += length + 1; - } - } - /* match with equivalence_class? */ -# ifdef _LIBC - if (nrules != 0) - { - const CHAR_T *backup_d = d, *backup_dend = dend; - /* Try to match the equivalence class against - those known to the collate implementation. */ - const int32_t *table; - const int32_t *weights; - const int32_t *extra; - const int32_t *indirect; - int32_t idx, idx2; - wint_t *cp; - size_t len; - - /* This #include defines a local function! */ -# include <locale/weightwc.h> - - table = (const int32_t *) - _NL_CURRENT (LC_COLLATE, _NL_COLLATE_TABLEWC); - weights = (const wint_t *) - _NL_CURRENT (LC_COLLATE, _NL_COLLATE_WEIGHTWC); - extra = (const wint_t *) - _NL_CURRENT (LC_COLLATE, _NL_COLLATE_EXTRAWC); - indirect = (const int32_t *) - _NL_CURRENT (LC_COLLATE, _NL_COLLATE_INDIRECTWC); - - /* Write 1 collating element to str_buf, and - get its index. */ - idx2 = 0; - - for (i = 0 ; idx2 == 0 && i < WORK_BUFFER_SIZE - 1; i++) - { - cp = (wint_t*)str_buf; - if (d == dend) - { - if (dend == end_match_2) - break; - d = string2; - dend = end_match_2; - } - str_buf[i] = TRANSLATE(*(d+i)); - str_buf[i+1] = '\0'; /* sentinel */ - idx2 = findidx ((const wint_t**)&cp); - } - - /* Update d, however d will be incremented at - char_set_matched:, we decrement d here. */ - d = backup_d + ((wchar_t*)cp - (wchar_t*)str_buf - 1); - if (d >= dend) - { - if (dend == end_match_2) - d = dend; - else - { - d = string2; - dend = end_match_2; - } - } - - len = weights[idx2]; - - for (workp2 = workp + equiv_class_length ; workp < workp2 ; - workp++) - { - idx = (int32_t)*workp; - /* We already checked idx != 0 in regex_compile. */ - - if (idx2 != 0 && len == weights[idx]) - { - int cnt = 0; - while (cnt < len && (weights[idx + 1 + cnt] - == weights[idx2 + 1 + cnt])) - ++cnt; - - if (cnt == len) - goto char_set_matched; - } - } - /* not matched */ - d = backup_d; - dend = backup_dend; - } - else /* (nrules == 0) */ -# endif - /* If we can't look up collation data, we use wcscoll - instead. */ - { - for (workp2 = workp + equiv_class_length ; workp < workp2 ;) - { - const CHAR_T *backup_d = d, *backup_dend = dend; -# ifdef _LIBC - length = __wcslen (workp); -# else - length = wcslen (workp); -# endif - - /* If wcscoll(the collating symbol, whole string) > 0, - any substring of the string never match with the - collating symbol. */ -# ifdef _LIBC - if (__wcscoll (workp, d) > 0) -# else - if (wcscoll (workp, d) > 0) -# endif - { - workp += length + 1; - break; - } - - /* First, we compare the equivalence class with - the first character of the string. - If it don't match, we add the next character to - the compare buffer in turn. */ - for (i = 0 ; i < WORK_BUFFER_SIZE - 1 ; i++, d++) - { - int match; - if (d == dend) - { - if (dend == end_match_2) - break; - d = string2; - dend = end_match_2; - } - - /* add next character to the compare buffer. */ - str_buf[i] = TRANSLATE(*d); - str_buf[i+1] = '\0'; - -# ifdef _LIBC - match = __wcscoll (workp, str_buf); -# else - match = wcscoll (workp, str_buf); -# endif - - if (match == 0) - goto char_set_matched; - - if (match < 0) - /* (str_buf > workp) indicate (str_buf + X > workp), - because for all X (str_buf + X > str_buf). - So we don't need continue this loop. */ - break; - - /* Otherwise(str_buf < workp), - (str_buf+next_character) may equals (workp). - So we continue this loop. */ - } - /* not matched */ - d = backup_d; - dend = backup_dend; - workp += length + 1; - } - } - - /* match with char_range? */ -# ifdef _LIBC - if (nrules != 0) - { - uint32_t collseqval; - const char *collseq = (const char *) - _NL_CURRENT(LC_COLLATE, _NL_COLLATE_COLLSEQWC); - - collseqval = collseq_table_lookup (collseq, c); - - for (; workp < p - chars_length ;) - { - uint32_t start_val, end_val; - - /* We already compute the collation sequence value - of the characters (or collating symbols). */ - start_val = (uint32_t) *workp++; /* range_start */ - end_val = (uint32_t) *workp++; /* range_end */ - - if (start_val <= collseqval && collseqval <= end_val) - goto char_set_matched; - } - } - else -# endif - { - /* We set range_start_char at str_buf[0], range_end_char - at str_buf[4], and compared char at str_buf[2]. */ - str_buf[1] = 0; - str_buf[2] = c; - str_buf[3] = 0; - str_buf[5] = 0; - for (; workp < p - chars_length ;) - { - wchar_t *range_start_char, *range_end_char; - - /* match if (range_start_char <= c <= range_end_char). */ - - /* If range_start(or end) < 0, we assume -range_start(end) - is the offset of the collating symbol which is specified - as the character of the range start(end). */ - - /* range_start */ - if (*workp < 0) - range_start_char = charset_top - (*workp++); - else - { - str_buf[0] = *workp++; - range_start_char = str_buf; - } - - /* range_end */ - if (*workp < 0) - range_end_char = charset_top - (*workp++); - else - { - str_buf[4] = *workp++; - range_end_char = str_buf + 4; - } - -# ifdef _LIBC - if (__wcscoll (range_start_char, str_buf+2) <= 0 - && __wcscoll (str_buf+2, range_end_char) <= 0) -# else - if (wcscoll (range_start_char, str_buf+2) <= 0 - && wcscoll (str_buf+2, range_end_char) <= 0) -# endif - goto char_set_matched; - } - } - - /* match with char? */ - for (; workp < p ; workp++) - if (c == *workp) - goto char_set_matched; - - not = !not; - - char_set_matched: - if (not) goto fail; -#else - /* Cast to `unsigned' instead of `unsigned char' in case the - bit list is a full 32 bytes long. */ - if (c < (unsigned) (*p * BYTEWIDTH) - && p[1 + c / BYTEWIDTH] & (1 << (c % BYTEWIDTH))) - not = !not; - - p += 1 + *p; - - if (!not) goto fail; -#undef WORK_BUFFER_SIZE -#endif /* WCHAR */ - SET_REGS_MATCHED (); - d++; - break; - } - - - /* The beginning of a group is represented by start_memory. - The arguments are the register number in the next byte, and the - number of groups inner to this one in the next. The text - matched within the group is recorded (in the internal - registers data structure) under the register number. */ - case start_memory: - DEBUG_PRINT3 ("EXECUTING start_memory %ld (%ld):\n", - (long int) *p, (long int) p[1]); - - /* Find out if this group can match the empty string. */ - p1 = p; /* To send to group_match_null_string_p. */ - - if (REG_MATCH_NULL_STRING_P (reg_info[*p]) == MATCH_NULL_UNSET_VALUE) - REG_MATCH_NULL_STRING_P (reg_info[*p]) - = PREFIX(group_match_null_string_p) (&p1, pend, reg_info); - - /* Save the position in the string where we were the last time - we were at this open-group operator in case the group is - operated upon by a repetition operator, e.g., with `(a*)*b' - against `ab'; then we want to ignore where we are now in - the string in case this attempt to match fails. */ - old_regstart[*p] = REG_MATCH_NULL_STRING_P (reg_info[*p]) - ? REG_UNSET (regstart[*p]) ? d : regstart[*p] - : regstart[*p]; - DEBUG_PRINT2 (" old_regstart: %d\n", - POINTER_TO_OFFSET (old_regstart[*p])); - - regstart[*p] = d; - DEBUG_PRINT2 (" regstart: %d\n", POINTER_TO_OFFSET (regstart[*p])); - - IS_ACTIVE (reg_info[*p]) = 1; - MATCHED_SOMETHING (reg_info[*p]) = 0; - - /* Clear this whenever we change the register activity status. */ - set_regs_matched_done = 0; - - /* This is the new highest active register. */ - highest_active_reg = *p; - - /* If nothing was active before, this is the new lowest active - register. */ - if (lowest_active_reg == NO_LOWEST_ACTIVE_REG) - lowest_active_reg = *p; - - /* Move past the register number and inner group count. */ - p += 2; - just_past_start_mem = p; - - break; - - - /* The stop_memory opcode represents the end of a group. Its - arguments are the same as start_memory's: the register - number, and the number of inner groups. */ - case stop_memory: - DEBUG_PRINT3 ("EXECUTING stop_memory %ld (%ld):\n", - (long int) *p, (long int) p[1]); - - /* We need to save the string position the last time we were at - this close-group operator in case the group is operated - upon by a repetition operator, e.g., with `((a*)*(b*)*)*' - against `aba'; then we want to ignore where we are now in - the string in case this attempt to match fails. */ - old_regend[*p] = REG_MATCH_NULL_STRING_P (reg_info[*p]) - ? REG_UNSET (regend[*p]) ? d : regend[*p] - : regend[*p]; - DEBUG_PRINT2 (" old_regend: %d\n", - POINTER_TO_OFFSET (old_regend[*p])); - - regend[*p] = d; - DEBUG_PRINT2 (" regend: %d\n", POINTER_TO_OFFSET (regend[*p])); - - /* This register isn't active anymore. */ - IS_ACTIVE (reg_info[*p]) = 0; - - /* Clear this whenever we change the register activity status. */ - set_regs_matched_done = 0; - - /* If this was the only register active, nothing is active - anymore. */ - if (lowest_active_reg == highest_active_reg) - { - lowest_active_reg = NO_LOWEST_ACTIVE_REG; - highest_active_reg = NO_HIGHEST_ACTIVE_REG; - } - else - { /* We must scan for the new highest active register, since - it isn't necessarily one less than now: consider - (a(b)c(d(e)f)g). When group 3 ends, after the f), the - new highest active register is 1. */ - UCHAR_T r = *p - 1; - while (r > 0 && !IS_ACTIVE (reg_info[r])) - r--; - - /* If we end up at register zero, that means that we saved - the registers as the result of an `on_failure_jump', not - a `start_memory', and we jumped to past the innermost - `stop_memory'. For example, in ((.)*) we save - registers 1 and 2 as a result of the *, but when we pop - back to the second ), we are at the stop_memory 1. - Thus, nothing is active. */ - if (r == 0) - { - lowest_active_reg = NO_LOWEST_ACTIVE_REG; - highest_active_reg = NO_HIGHEST_ACTIVE_REG; - } - else - highest_active_reg = r; - } - - /* If just failed to match something this time around with a - group that's operated on by a repetition operator, try to - force exit from the ``loop'', and restore the register - information for this group that we had before trying this - last match. */ - if ((!MATCHED_SOMETHING (reg_info[*p]) - || just_past_start_mem == p - 1) - && (p + 2) < pend) - { - boolean is_a_jump_n = false; - - p1 = p + 2; - mcnt = 0; - switch ((re_opcode_t) *p1++) - { - case jump_n: - is_a_jump_n = true; - case pop_failure_jump: - case maybe_pop_jump: - case jump: - case dummy_failure_jump: - EXTRACT_NUMBER_AND_INCR (mcnt, p1); - if (is_a_jump_n) - p1 += OFFSET_ADDRESS_SIZE; - break; - - default: - /* do nothing */ ; - } - p1 += mcnt; - - /* If the next operation is a jump backwards in the pattern - to an on_failure_jump right before the start_memory - corresponding to this stop_memory, exit from the loop - by forcing a failure after pushing on the stack the - on_failure_jump's jump in the pattern, and d. */ - if (mcnt < 0 && (re_opcode_t) *p1 == on_failure_jump - && (re_opcode_t) p1[1+OFFSET_ADDRESS_SIZE] == start_memory - && p1[2+OFFSET_ADDRESS_SIZE] == *p) - { - /* If this group ever matched anything, then restore - what its registers were before trying this last - failed match, e.g., with `(a*)*b' against `ab' for - regstart[1], and, e.g., with `((a*)*(b*)*)*' - against `aba' for regend[3]. - - Also restore the registers for inner groups for, - e.g., `((a*)(b*))*' against `aba' (register 3 would - otherwise get trashed). */ - - if (EVER_MATCHED_SOMETHING (reg_info[*p])) - { - unsigned r; - - EVER_MATCHED_SOMETHING (reg_info[*p]) = 0; - - /* Restore this and inner groups' (if any) registers. */ - for (r = *p; r < (unsigned) *p + (unsigned) *(p + 1); - r++) - { - regstart[r] = old_regstart[r]; - - /* xx why this test? */ - if (old_regend[r] >= regstart[r]) - regend[r] = old_regend[r]; - } - } - p1++; - EXTRACT_NUMBER_AND_INCR (mcnt, p1); - PUSH_FAILURE_POINT (p1 + mcnt, d, -2); - - goto fail; - } - } - - /* Move past the register number and the inner group count. */ - p += 2; - break; - - - /* \<digit> has been turned into a `duplicate' command which is - followed by the numeric value of <digit> as the register number. */ - case duplicate: - { - register const CHAR_T *d2, *dend2; - int regno = *p++; /* Get which register to match against. */ - DEBUG_PRINT2 ("EXECUTING duplicate %d.\n", regno); - - /* Can't back reference a group which we've never matched. */ - if (REG_UNSET (regstart[regno]) || REG_UNSET (regend[regno])) - goto fail; - - /* Where in input to try to start matching. */ - d2 = regstart[regno]; - - /* Where to stop matching; if both the place to start and - the place to stop matching are in the same string, then - set to the place to stop, otherwise, for now have to use - the end of the first string. */ - - dend2 = ((FIRST_STRING_P (regstart[regno]) - == FIRST_STRING_P (regend[regno])) - ? regend[regno] : end_match_1); - for (;;) - { - /* If necessary, advance to next segment in register - contents. */ - while (d2 == dend2) - { - if (dend2 == end_match_2) break; - if (dend2 == regend[regno]) break; - - /* End of string1 => advance to string2. */ - d2 = string2; - dend2 = regend[regno]; - } - /* At end of register contents => success */ - if (d2 == dend2) break; - - /* If necessary, advance to next segment in data. */ - PREFETCH (); - - /* How many characters left in this segment to match. */ - mcnt = dend - d; - - /* Want how many consecutive characters we can match in - one shot, so, if necessary, adjust the count. */ - if (mcnt > dend2 - d2) - mcnt = dend2 - d2; - - /* Compare that many; failure if mismatch, else move - past them. */ - if (translate - ? PREFIX(bcmp_translate) (d, d2, mcnt, translate) - : memcmp (d, d2, mcnt*sizeof(UCHAR_T))) - goto fail; - d += mcnt, d2 += mcnt; - - /* Do this because we've match some characters. */ - SET_REGS_MATCHED (); - } - } - break; - - - /* begline matches the empty string at the beginning of the string - (unless `not_bol' is set in `bufp'), and, if - `newline_anchor' is set, after newlines. */ - case begline: - DEBUG_PRINT1 ("EXECUTING begline.\n"); - - if (AT_STRINGS_BEG (d)) - { - if (!bufp->not_bol) break; - } - else if (d[-1] == '\n' && bufp->newline_anchor) - { - break; - } - /* In all other cases, we fail. */ - goto fail; - - - /* endline is the dual of begline. */ - case endline: - DEBUG_PRINT1 ("EXECUTING endline.\n"); - - if (AT_STRINGS_END (d)) - { - if (!bufp->not_eol) break; - } - - /* We have to ``prefetch'' the next character. */ - else if ((d == end1 ? *string2 : *d) == '\n' - && bufp->newline_anchor) - { - break; - } - goto fail; - - - /* Match at the very beginning of the data. */ - case begbuf: - DEBUG_PRINT1 ("EXECUTING begbuf.\n"); - if (AT_STRINGS_BEG (d)) - break; - goto fail; - - - /* Match at the very end of the data. */ - case endbuf: - DEBUG_PRINT1 ("EXECUTING endbuf.\n"); - if (AT_STRINGS_END (d)) - break; - goto fail; - - - /* on_failure_keep_string_jump is used to optimize `.*\n'. It - pushes NULL as the value for the string on the stack. Then - `pop_failure_point' will keep the current value for the - string, instead of restoring it. To see why, consider - matching `foo\nbar' against `.*\n'. The .* matches the foo; - then the . fails against the \n. But the next thing we want - to do is match the \n against the \n; if we restored the - string value, we would be back at the foo. - - Because this is used only in specific cases, we don't need to - check all the things that `on_failure_jump' does, to make - sure the right things get saved on the stack. Hence we don't - share its code. The only reason to push anything on the - stack at all is that otherwise we would have to change - `anychar's code to do something besides goto fail in this - case; that seems worse than this. */ - case on_failure_keep_string_jump: - DEBUG_PRINT1 ("EXECUTING on_failure_keep_string_jump"); - - EXTRACT_NUMBER_AND_INCR (mcnt, p); -#ifdef _LIBC - DEBUG_PRINT3 (" %d (to %p):\n", mcnt, p + mcnt); -#else - DEBUG_PRINT3 (" %d (to 0x%x):\n", mcnt, p + mcnt); -#endif - - PUSH_FAILURE_POINT (p + mcnt, NULL, -2); - break; - - - /* Uses of on_failure_jump: - - Each alternative starts with an on_failure_jump that points - to the beginning of the next alternative. Each alternative - except the last ends with a jump that in effect jumps past - the rest of the alternatives. (They really jump to the - ending jump of the following alternative, because tensioning - these jumps is a hassle.) - - Repeats start with an on_failure_jump that points past both - the repetition text and either the following jump or - pop_failure_jump back to this on_failure_jump. */ - case on_failure_jump: - on_failure: - DEBUG_PRINT1 ("EXECUTING on_failure_jump"); - - EXTRACT_NUMBER_AND_INCR (mcnt, p); -#ifdef _LIBC - DEBUG_PRINT3 (" %d (to %p)", mcnt, p + mcnt); -#else - DEBUG_PRINT3 (" %d (to 0x%x)", mcnt, p + mcnt); -#endif - - /* If this on_failure_jump comes right before a group (i.e., - the original * applied to a group), save the information - for that group and all inner ones, so that if we fail back - to this point, the group's information will be correct. - For example, in \(a*\)*\1, we need the preceding group, - and in \(zz\(a*\)b*\)\2, we need the inner group. */ - - /* We can't use `p' to check ahead because we push - a failure point to `p + mcnt' after we do this. */ - p1 = p; - - /* We need to skip no_op's before we look for the - start_memory in case this on_failure_jump is happening as - the result of a completed succeed_n, as in \(a\)\{1,3\}b\1 - against aba. */ - while (p1 < pend && (re_opcode_t) *p1 == no_op) - p1++; - - if (p1 < pend && (re_opcode_t) *p1 == start_memory) - { - /* We have a new highest active register now. This will - get reset at the start_memory we are about to get to, - but we will have saved all the registers relevant to - this repetition op, as described above. */ - highest_active_reg = *(p1 + 1) + *(p1 + 2); - if (lowest_active_reg == NO_LOWEST_ACTIVE_REG) - lowest_active_reg = *(p1 + 1); - } - - DEBUG_PRINT1 (":\n"); - PUSH_FAILURE_POINT (p + mcnt, d, -2); - break; - - - /* A smart repeat ends with `maybe_pop_jump'. - We change it to either `pop_failure_jump' or `jump'. */ - case maybe_pop_jump: - EXTRACT_NUMBER_AND_INCR (mcnt, p); - DEBUG_PRINT2 ("EXECUTING maybe_pop_jump %d.\n", mcnt); - { - register UCHAR_T *p2 = p; - - /* Compare the beginning of the repeat with what in the - pattern follows its end. If we can establish that there - is nothing that they would both match, i.e., that we - would have to backtrack because of (as in, e.g., `a*a') - then we can change to pop_failure_jump, because we'll - never have to backtrack. - - This is not true in the case of alternatives: in - `(a|ab)*' we do need to backtrack to the `ab' alternative - (e.g., if the string was `ab'). But instead of trying to - detect that here, the alternative has put on a dummy - failure point which is what we will end up popping. */ - - /* Skip over open/close-group commands. - If what follows this loop is a ...+ construct, - look at what begins its body, since we will have to - match at least one of that. */ - while (1) - { - if (p2 + 2 < pend - && ((re_opcode_t) *p2 == stop_memory - || (re_opcode_t) *p2 == start_memory)) - p2 += 3; - else if (p2 + 2 + 2 * OFFSET_ADDRESS_SIZE < pend - && (re_opcode_t) *p2 == dummy_failure_jump) - p2 += 2 + 2 * OFFSET_ADDRESS_SIZE; - else - break; - } - - p1 = p + mcnt; - /* p1[0] ... p1[2] are the `on_failure_jump' corresponding - to the `maybe_finalize_jump' of this case. Examine what - follows. */ - - /* If we're at the end of the pattern, we can change. */ - if (p2 == pend) - { - /* Consider what happens when matching ":\(.*\)" - against ":/". I don't really understand this code - yet. */ - p[-(1+OFFSET_ADDRESS_SIZE)] = (UCHAR_T) - pop_failure_jump; - DEBUG_PRINT1 - (" End of pattern: change to `pop_failure_jump'.\n"); - } - - else if ((re_opcode_t) *p2 == exactn -#ifdef MBS_SUPPORT - || (re_opcode_t) *p2 == exactn_bin -#endif - || (bufp->newline_anchor && (re_opcode_t) *p2 == endline)) - { - register UCHAR_T c - = *p2 == (UCHAR_T) endline ? '\n' : p2[2]; - - if (((re_opcode_t) p1[1+OFFSET_ADDRESS_SIZE] == exactn -#ifdef MBS_SUPPORT - || (re_opcode_t) p1[1+OFFSET_ADDRESS_SIZE] == exactn_bin -#endif - ) && p1[3+OFFSET_ADDRESS_SIZE] != c) - { - p[-(1+OFFSET_ADDRESS_SIZE)] = (UCHAR_T) - pop_failure_jump; -#ifdef WCHAR - DEBUG_PRINT3 (" %C != %C => pop_failure_jump.\n", - (wint_t) c, - (wint_t) p1[3+OFFSET_ADDRESS_SIZE]); -#else - DEBUG_PRINT3 (" %c != %c => pop_failure_jump.\n", - (char) c, - (char) p1[3+OFFSET_ADDRESS_SIZE]); -#endif - } - -#ifndef WCHAR - else if ((re_opcode_t) p1[3] == charset - || (re_opcode_t) p1[3] == charset_not) - { - int not = (re_opcode_t) p1[3] == charset_not; - - if (c < (unsigned) (p1[4] * BYTEWIDTH) - && p1[5 + c / BYTEWIDTH] & (1 << (c % BYTEWIDTH))) - not = !not; - - /* `not' is equal to 1 if c would match, which means - that we can't change to pop_failure_jump. */ - if (!not) - { - p[-3] = (unsigned char) pop_failure_jump; - DEBUG_PRINT1 (" No match => pop_failure_jump.\n"); - } - } -#endif /* not WCHAR */ - } -#ifndef WCHAR - else if ((re_opcode_t) *p2 == charset) - { - /* We win if the first character of the loop is not part - of the charset. */ - if ((re_opcode_t) p1[3] == exactn - && ! ((int) p2[1] * BYTEWIDTH > (int) p1[5] - && (p2[2 + p1[5] / BYTEWIDTH] - & (1 << (p1[5] % BYTEWIDTH))))) - { - p[-3] = (unsigned char) pop_failure_jump; - DEBUG_PRINT1 (" No match => pop_failure_jump.\n"); - } - - else if ((re_opcode_t) p1[3] == charset_not) - { - int idx; - /* We win if the charset_not inside the loop - lists every character listed in the charset after. */ - for (idx = 0; idx < (int) p2[1]; idx++) - if (! (p2[2 + idx] == 0 - || (idx < (int) p1[4] - && ((p2[2 + idx] & ~ p1[5 + idx]) == 0)))) - break; - - if (idx == p2[1]) - { - p[-3] = (unsigned char) pop_failure_jump; - DEBUG_PRINT1 (" No match => pop_failure_jump.\n"); - } - } - else if ((re_opcode_t) p1[3] == charset) - { - int idx; - /* We win if the charset inside the loop - has no overlap with the one after the loop. */ - for (idx = 0; - idx < (int) p2[1] && idx < (int) p1[4]; - idx++) - if ((p2[2 + idx] & p1[5 + idx]) != 0) - break; - - if (idx == p2[1] || idx == p1[4]) - { - p[-3] = (unsigned char) pop_failure_jump; - DEBUG_PRINT1 (" No match => pop_failure_jump.\n"); - } - } - } -#endif /* not WCHAR */ - } - p -= OFFSET_ADDRESS_SIZE; /* Point at relative address again. */ - if ((re_opcode_t) p[-1] != pop_failure_jump) - { - p[-1] = (UCHAR_T) jump; - DEBUG_PRINT1 (" Match => jump.\n"); - goto unconditional_jump; - } - /* Note fall through. */ - - - /* The end of a simple repeat has a pop_failure_jump back to - its matching on_failure_jump, where the latter will push a - failure point. The pop_failure_jump takes off failure - points put on by this pop_failure_jump's matching - on_failure_jump; we got through the pattern to here from the - matching on_failure_jump, so didn't fail. */ - case pop_failure_jump: - { - /* We need to pass separate storage for the lowest and - highest registers, even though we don't care about the - actual values. Otherwise, we will restore only one - register from the stack, since lowest will == highest in - `pop_failure_point'. */ - active_reg_t dummy_low_reg, dummy_high_reg; - UCHAR_T *pdummy = NULL; - const CHAR_T *sdummy = NULL; - - DEBUG_PRINT1 ("EXECUTING pop_failure_jump.\n"); - POP_FAILURE_POINT (sdummy, pdummy, - dummy_low_reg, dummy_high_reg, - reg_dummy, reg_dummy, reg_info_dummy); - } - /* Note fall through. */ - - unconditional_jump: -#ifdef _LIBC - DEBUG_PRINT2 ("\n%p: ", p); -#else - DEBUG_PRINT2 ("\n0x%x: ", p); -#endif - /* Note fall through. */ - - /* Unconditionally jump (without popping any failure points). */ - case jump: - EXTRACT_NUMBER_AND_INCR (mcnt, p); /* Get the amount to jump. */ - DEBUG_PRINT2 ("EXECUTING jump %d ", mcnt); - p += mcnt; /* Do the jump. */ -#ifdef _LIBC - DEBUG_PRINT2 ("(to %p).\n", p); -#else - DEBUG_PRINT2 ("(to 0x%x).\n", p); -#endif - break; - - - /* We need this opcode so we can detect where alternatives end - in `group_match_null_string_p' et al. */ - case jump_past_alt: - DEBUG_PRINT1 ("EXECUTING jump_past_alt.\n"); - goto unconditional_jump; - - - /* Normally, the on_failure_jump pushes a failure point, which - then gets popped at pop_failure_jump. We will end up at - pop_failure_jump, also, and with a pattern of, say, `a+', we - are skipping over the on_failure_jump, so we have to push - something meaningless for pop_failure_jump to pop. */ - case dummy_failure_jump: - DEBUG_PRINT1 ("EXECUTING dummy_failure_jump.\n"); - /* It doesn't matter what we push for the string here. What - the code at `fail' tests is the value for the pattern. */ - PUSH_FAILURE_POINT (NULL, NULL, -2); - goto unconditional_jump; - - - /* At the end of an alternative, we need to push a dummy failure - point in case we are followed by a `pop_failure_jump', because - we don't want the failure point for the alternative to be - popped. For example, matching `(a|ab)*' against `aab' - requires that we match the `ab' alternative. */ - case push_dummy_failure: - DEBUG_PRINT1 ("EXECUTING push_dummy_failure.\n"); - /* See comments just above at `dummy_failure_jump' about the - two zeroes. */ - PUSH_FAILURE_POINT (NULL, NULL, -2); - break; - - /* Have to succeed matching what follows at least n times. - After that, handle like `on_failure_jump'. */ - case succeed_n: - EXTRACT_NUMBER (mcnt, p + OFFSET_ADDRESS_SIZE); - DEBUG_PRINT2 ("EXECUTING succeed_n %d.\n", mcnt); - - assert (mcnt >= 0); - /* Originally, this is how many times we HAVE to succeed. */ - if (mcnt > 0) - { - mcnt--; - p += OFFSET_ADDRESS_SIZE; - STORE_NUMBER_AND_INCR (p, mcnt); -#ifdef _LIBC - DEBUG_PRINT3 (" Setting %p to %d.\n", p - OFFSET_ADDRESS_SIZE - , mcnt); -#else - DEBUG_PRINT3 (" Setting 0x%x to %d.\n", p - OFFSET_ADDRESS_SIZE - , mcnt); -#endif - } - else if (mcnt == 0) - { -#ifdef _LIBC - DEBUG_PRINT2 (" Setting two bytes from %p to no_op.\n", - p + OFFSET_ADDRESS_SIZE); -#else - DEBUG_PRINT2 (" Setting two bytes from 0x%x to no_op.\n", - p + OFFSET_ADDRESS_SIZE); -#endif /* _LIBC */ - -#ifdef WCHAR - p[1] = (UCHAR_T) no_op; -#else - p[2] = (UCHAR_T) no_op; - p[3] = (UCHAR_T) no_op; -#endif /* WCHAR */ - goto on_failure; - } - break; - - case jump_n: - EXTRACT_NUMBER (mcnt, p + OFFSET_ADDRESS_SIZE); - DEBUG_PRINT2 ("EXECUTING jump_n %d.\n", mcnt); - - /* Originally, this is how many times we CAN jump. */ - if (mcnt) - { - mcnt--; - STORE_NUMBER (p + OFFSET_ADDRESS_SIZE, mcnt); - -#ifdef _LIBC - DEBUG_PRINT3 (" Setting %p to %d.\n", p + OFFSET_ADDRESS_SIZE, - mcnt); -#else - DEBUG_PRINT3 (" Setting 0x%x to %d.\n", p + OFFSET_ADDRESS_SIZE, - mcnt); -#endif /* _LIBC */ - goto unconditional_jump; - } - /* If don't have to jump any more, skip over the rest of command. */ - else - p += 2 * OFFSET_ADDRESS_SIZE; - break; - - case set_number_at: - { - DEBUG_PRINT1 ("EXECUTING set_number_at.\n"); - - EXTRACT_NUMBER_AND_INCR (mcnt, p); - p1 = p + mcnt; - EXTRACT_NUMBER_AND_INCR (mcnt, p); -#ifdef _LIBC - DEBUG_PRINT3 (" Setting %p to %d.\n", p1, mcnt); -#else - DEBUG_PRINT3 (" Setting 0x%x to %d.\n", p1, mcnt); -#endif - STORE_NUMBER (p1, mcnt); - break; - } - -#if 0 - /* The DEC Alpha C compiler 3.x generates incorrect code for the - test WORDCHAR_P (d - 1) != WORDCHAR_P (d) in the expansion of - AT_WORD_BOUNDARY, so this code is disabled. Expanding the - macro and introducing temporary variables works around the bug. */ - - case wordbound: - DEBUG_PRINT1 ("EXECUTING wordbound.\n"); - if (AT_WORD_BOUNDARY (d)) - break; - goto fail; - - case notwordbound: - DEBUG_PRINT1 ("EXECUTING notwordbound.\n"); - if (AT_WORD_BOUNDARY (d)) - goto fail; - break; -#else - case wordbound: - { - boolean prevchar, thischar; - - DEBUG_PRINT1 ("EXECUTING wordbound.\n"); - if (AT_STRINGS_BEG (d) || AT_STRINGS_END (d)) - break; - - prevchar = WORDCHAR_P (d - 1); - thischar = WORDCHAR_P (d); - if (prevchar != thischar) - break; - goto fail; - } - - case notwordbound: - { - boolean prevchar, thischar; - - DEBUG_PRINT1 ("EXECUTING notwordbound.\n"); - if (AT_STRINGS_BEG (d) || AT_STRINGS_END (d)) - goto fail; - - prevchar = WORDCHAR_P (d - 1); - thischar = WORDCHAR_P (d); - if (prevchar != thischar) - goto fail; - break; - } -#endif - - case wordbeg: - DEBUG_PRINT1 ("EXECUTING wordbeg.\n"); - if (!AT_STRINGS_END (d) && WORDCHAR_P (d) - && (AT_STRINGS_BEG (d) || !WORDCHAR_P (d - 1))) - break; - goto fail; - - case wordend: - DEBUG_PRINT1 ("EXECUTING wordend.\n"); - if (!AT_STRINGS_BEG (d) && WORDCHAR_P (d - 1) - && (AT_STRINGS_END (d) || !WORDCHAR_P (d))) - break; - goto fail; - -#ifdef emacs - case before_dot: - DEBUG_PRINT1 ("EXECUTING before_dot.\n"); - if (PTR_CHAR_POS ((unsigned char *) d) >= point) - goto fail; - break; - - case at_dot: - DEBUG_PRINT1 ("EXECUTING at_dot.\n"); - if (PTR_CHAR_POS ((unsigned char *) d) != point) - goto fail; - break; - - case after_dot: - DEBUG_PRINT1 ("EXECUTING after_dot.\n"); - if (PTR_CHAR_POS ((unsigned char *) d) <= point) - goto fail; - break; - - case syntaxspec: - DEBUG_PRINT2 ("EXECUTING syntaxspec %d.\n", mcnt); - mcnt = *p++; - goto matchsyntax; - - case wordchar: - DEBUG_PRINT1 ("EXECUTING Emacs wordchar.\n"); - mcnt = (int) Sword; - matchsyntax: - PREFETCH (); - /* Can't use *d++ here; SYNTAX may be an unsafe macro. */ - d++; - if (SYNTAX (d[-1]) != (enum syntaxcode) mcnt) - goto fail; - SET_REGS_MATCHED (); - break; - - case notsyntaxspec: - DEBUG_PRINT2 ("EXECUTING notsyntaxspec %d.\n", mcnt); - mcnt = *p++; - goto matchnotsyntax; - - case notwordchar: - DEBUG_PRINT1 ("EXECUTING Emacs notwordchar.\n"); - mcnt = (int) Sword; - matchnotsyntax: - PREFETCH (); - /* Can't use *d++ here; SYNTAX may be an unsafe macro. */ - d++; - if (SYNTAX (d[-1]) == (enum syntaxcode) mcnt) - goto fail; - SET_REGS_MATCHED (); - break; - -#else /* not emacs */ - case wordchar: - DEBUG_PRINT1 ("EXECUTING non-Emacs wordchar.\n"); - PREFETCH (); - if (!WORDCHAR_P (d)) - goto fail; - SET_REGS_MATCHED (); - d++; - break; - - case notwordchar: - DEBUG_PRINT1 ("EXECUTING non-Emacs notwordchar.\n"); - PREFETCH (); - if (WORDCHAR_P (d)) - goto fail; - SET_REGS_MATCHED (); - d++; - break; -#endif /* not emacs */ - - default: - abort (); - } - continue; /* Successfully executed one pattern command; keep going. */ - - - /* We goto here if a matching operation fails. */ - fail: - if (!FAIL_STACK_EMPTY ()) - { /* A restart point is known. Restore to that state. */ - DEBUG_PRINT1 ("\nFAIL:\n"); - POP_FAILURE_POINT (d, p, - lowest_active_reg, highest_active_reg, - regstart, regend, reg_info); - - /* If this failure point is a dummy, try the next one. */ - if (!p) - goto fail; - - /* If we failed to the end of the pattern, don't examine *p. */ - assert (p <= pend); - if (p < pend) - { - boolean is_a_jump_n = false; - - /* If failed to a backwards jump that's part of a repetition - loop, need to pop this failure point and use the next one. */ - switch ((re_opcode_t) *p) - { - case jump_n: - is_a_jump_n = true; - case maybe_pop_jump: - case pop_failure_jump: - case jump: - p1 = p + 1; - EXTRACT_NUMBER_AND_INCR (mcnt, p1); - p1 += mcnt; - - if ((is_a_jump_n && (re_opcode_t) *p1 == succeed_n) - || (!is_a_jump_n - && (re_opcode_t) *p1 == on_failure_jump)) - goto fail; - break; - default: - /* do nothing */ ; - } - } - - if (d >= string1 && d <= end1) - dend = end_match_1; - } - else - break; /* Matching at this starting point really fails. */ - } /* for (;;) */ - - if (best_regs_set) - goto restore_best_regs; - - FREE_VARIABLES (); - - return -1; /* Failure to match. */ -} /* re_match_2 */ - - -/* Subroutine definitions for re_match_2. */ - - -/* We are passed P pointing to a register number after a start_memory. - - Return true if the pattern up to the corresponding stop_memory can - match the empty string, and false otherwise. - - If we find the matching stop_memory, sets P to point to one past its number. - Otherwise, sets P to an undefined byte less than or equal to END. - - We don't handle duplicates properly (yet). */ - -static boolean -PREFIX(group_match_null_string_p) (p, end, reg_info) - UCHAR_T **p, *end; - PREFIX(register_info_type) *reg_info; -{ - int mcnt; - /* Point to after the args to the start_memory. */ - UCHAR_T *p1 = *p + 2; - - while (p1 < end) - { - /* Skip over opcodes that can match nothing, and return true or - false, as appropriate, when we get to one that can't, or to the - matching stop_memory. */ - - switch ((re_opcode_t) *p1) - { - /* Could be either a loop or a series of alternatives. */ - case on_failure_jump: - p1++; - EXTRACT_NUMBER_AND_INCR (mcnt, p1); - - /* If the next operation is not a jump backwards in the - pattern. */ - - if (mcnt >= 0) - { - /* Go through the on_failure_jumps of the alternatives, - seeing if any of the alternatives cannot match nothing. - The last alternative starts with only a jump, - whereas the rest start with on_failure_jump and end - with a jump, e.g., here is the pattern for `a|b|c': - - /on_failure_jump/0/6/exactn/1/a/jump_past_alt/0/6 - /on_failure_jump/0/6/exactn/1/b/jump_past_alt/0/3 - /exactn/1/c - - So, we have to first go through the first (n-1) - alternatives and then deal with the last one separately. */ - - - /* Deal with the first (n-1) alternatives, which start - with an on_failure_jump (see above) that jumps to right - past a jump_past_alt. */ - - while ((re_opcode_t) p1[mcnt-(1+OFFSET_ADDRESS_SIZE)] == - jump_past_alt) - { - /* `mcnt' holds how many bytes long the alternative - is, including the ending `jump_past_alt' and - its number. */ - - if (!PREFIX(alt_match_null_string_p) (p1, p1 + mcnt - - (1 + OFFSET_ADDRESS_SIZE), - reg_info)) - return false; - - /* Move to right after this alternative, including the - jump_past_alt. */ - p1 += mcnt; - - /* Break if it's the beginning of an n-th alternative - that doesn't begin with an on_failure_jump. */ - if ((re_opcode_t) *p1 != on_failure_jump) - break; - - /* Still have to check that it's not an n-th - alternative that starts with an on_failure_jump. */ - p1++; - EXTRACT_NUMBER_AND_INCR (mcnt, p1); - if ((re_opcode_t) p1[mcnt-(1+OFFSET_ADDRESS_SIZE)] != - jump_past_alt) - { - /* Get to the beginning of the n-th alternative. */ - p1 -= 1 + OFFSET_ADDRESS_SIZE; - break; - } - } - - /* Deal with the last alternative: go back and get number - of the `jump_past_alt' just before it. `mcnt' contains - the length of the alternative. */ - EXTRACT_NUMBER (mcnt, p1 - OFFSET_ADDRESS_SIZE); - - if (!PREFIX(alt_match_null_string_p) (p1, p1 + mcnt, reg_info)) - return false; - - p1 += mcnt; /* Get past the n-th alternative. */ - } /* if mcnt > 0 */ - break; - - - case stop_memory: - assert (p1[1] == **p); - *p = p1 + 2; - return true; - - - default: - if (!PREFIX(common_op_match_null_string_p) (&p1, end, reg_info)) - return false; - } - } /* while p1 < end */ - - return false; -} /* group_match_null_string_p */ - - -/* Similar to group_match_null_string_p, but doesn't deal with alternatives: - It expects P to be the first byte of a single alternative and END one - byte past the last. The alternative can contain groups. */ - -static boolean -PREFIX(alt_match_null_string_p) (p, end, reg_info) - UCHAR_T *p, *end; - PREFIX(register_info_type) *reg_info; -{ - int mcnt; - UCHAR_T *p1 = p; - - while (p1 < end) - { - /* Skip over opcodes that can match nothing, and break when we get - to one that can't. */ - - switch ((re_opcode_t) *p1) - { - /* It's a loop. */ - case on_failure_jump: - p1++; - EXTRACT_NUMBER_AND_INCR (mcnt, p1); - p1 += mcnt; - break; - - default: - if (!PREFIX(common_op_match_null_string_p) (&p1, end, reg_info)) - return false; - } - } /* while p1 < end */ - - return true; -} /* alt_match_null_string_p */ - - -/* Deals with the ops common to group_match_null_string_p and - alt_match_null_string_p. - - Sets P to one after the op and its arguments, if any. */ - -static boolean -PREFIX(common_op_match_null_string_p) (p, end, reg_info) - UCHAR_T **p, *end; - PREFIX(register_info_type) *reg_info; -{ - int mcnt; - boolean ret; - int reg_no; - UCHAR_T *p1 = *p; - - switch ((re_opcode_t) *p1++) - { - case no_op: - case begline: - case endline: - case begbuf: - case endbuf: - case wordbeg: - case wordend: - case wordbound: - case notwordbound: -#ifdef emacs - case before_dot: - case at_dot: - case after_dot: -#endif - break; - - case start_memory: - reg_no = *p1; - assert (reg_no > 0 && reg_no <= MAX_REGNUM); - ret = PREFIX(group_match_null_string_p) (&p1, end, reg_info); - - /* Have to set this here in case we're checking a group which - contains a group and a back reference to it. */ - - if (REG_MATCH_NULL_STRING_P (reg_info[reg_no]) == MATCH_NULL_UNSET_VALUE) - REG_MATCH_NULL_STRING_P (reg_info[reg_no]) = ret; - - if (!ret) - return false; - break; - - /* If this is an optimized succeed_n for zero times, make the jump. */ - case jump: - EXTRACT_NUMBER_AND_INCR (mcnt, p1); - if (mcnt >= 0) - p1 += mcnt; - else - return false; - break; - - case succeed_n: - /* Get to the number of times to succeed. */ - p1 += OFFSET_ADDRESS_SIZE; - EXTRACT_NUMBER_AND_INCR (mcnt, p1); - - if (mcnt == 0) - { - p1 -= 2 * OFFSET_ADDRESS_SIZE; - EXTRACT_NUMBER_AND_INCR (mcnt, p1); - p1 += mcnt; - } - else - return false; - break; - - case duplicate: - if (!REG_MATCH_NULL_STRING_P (reg_info[*p1])) - return false; - break; - - case set_number_at: - p1 += 2 * OFFSET_ADDRESS_SIZE; - - default: - /* All other opcodes mean we cannot match the empty string. */ - return false; - } - - *p = p1; - return true; -} /* common_op_match_null_string_p */ - - -/* Return zero if TRANSLATE[S1] and TRANSLATE[S2] are identical for LEN - bytes; nonzero otherwise. */ - -static int -PREFIX(bcmp_translate) (s1, s2, len, translate) - const CHAR_T *s1, *s2; - register int len; - RE_TRANSLATE_TYPE translate; -{ - register const UCHAR_T *p1 = (const UCHAR_T *) s1; - register const UCHAR_T *p2 = (const UCHAR_T *) s2; - while (len) - { -#ifdef WCHAR - if (((*p1<=0xff)?translate[*p1++]:*p1++) - != ((*p2<=0xff)?translate[*p2++]:*p2++)) - return 1; -#else /* BYTE */ - if (translate[*p1++] != translate[*p2++]) return 1; -#endif /* WCHAR */ - len--; - } - return 0; -} - - - -#else /* not INSIDE_RECURSION */ - -/* Entry points for GNU code. */ - -/* re_compile_pattern is the GNU regular expression compiler: it - compiles PATTERN (of length SIZE) and puts the result in BUFP. - Returns 0 if the pattern was valid, otherwise an error string. - - Assumes the `allocated' (and perhaps `buffer') and `translate' fields - are set in BUFP on entry. - - We call regex_compile to do the actual compilation. */ - -const char * -re_compile_pattern (pattern, length, bufp) - const char *pattern; - size_t length; - struct re_pattern_buffer *bufp; -{ - reg_errcode_t ret; - - /* GNU code is written to assume at least RE_NREGS registers will be set - (and at least one extra will be -1). */ - bufp->regs_allocated = REGS_UNALLOCATED; - - /* And GNU code determines whether or not to get register information - by passing null for the REGS argument to re_match, etc., not by - setting no_sub. */ - bufp->no_sub = 0; - - /* Match anchors at newline. */ - bufp->newline_anchor = 1; - -# ifdef MBS_SUPPORT - if (MB_CUR_MAX != 1) - ret = wcs_regex_compile (pattern, length, re_syntax_options, bufp); - else -# endif - ret = byte_regex_compile (pattern, length, re_syntax_options, bufp); - - if (!ret) - return NULL; - return gettext (re_error_msgid + re_error_msgid_idx[(int) ret]); -} -#ifdef _LIBC -weak_alias (__re_compile_pattern, re_compile_pattern) -#endif - - -/* Entry points compatible with 4.2 BSD regex library. We don't define - them unless specifically requested. */ - -#if defined _REGEX_RE_COMP || defined _LIBC - -/* BSD has one and only one pattern buffer. */ -static struct re_pattern_buffer re_comp_buf; - -char * -#ifdef _LIBC -/* Make these definitions weak in libc, so POSIX programs can redefine - these names if they don't use our functions, and still use - regcomp/regexec below without link errors. */ -weak_function -#endif -re_comp (s) - const char *s; -{ - reg_errcode_t ret; - - if (!s) - { - if (!re_comp_buf.buffer) - return gettext ("No previous regular expression"); - return 0; - } - - if (!re_comp_buf.buffer) - { - re_comp_buf.buffer = (unsigned char *) malloc (200); - if (re_comp_buf.buffer == NULL) - return (char *) gettext (re_error_msgid - + re_error_msgid_idx[(int) REG_ESPACE]); - re_comp_buf.allocated = 200; - - re_comp_buf.fastmap = (char *) malloc (1 << BYTEWIDTH); - if (re_comp_buf.fastmap == NULL) - return (char *) gettext (re_error_msgid - + re_error_msgid_idx[(int) REG_ESPACE]); - } - - /* Since `re_exec' always passes NULL for the `regs' argument, we - don't need to initialize the pattern buffer fields which affect it. */ - - /* Match anchors at newlines. */ - re_comp_buf.newline_anchor = 1; - -# ifdef MBS_SUPPORT - if (MB_CUR_MAX != 1) - ret = wcs_regex_compile (s, strlen (s), re_syntax_options, &re_comp_buf); - else -# endif - ret = byte_regex_compile (s, strlen (s), re_syntax_options, &re_comp_buf); - - if (!ret) - return NULL; - - /* Yes, we're discarding `const' here if !HAVE_LIBINTL. */ - return (char *) gettext (re_error_msgid + re_error_msgid_idx[(int) ret]); -} - - -int -#ifdef _LIBC -weak_function -#endif -re_exec (s) - const char *s; -{ - const int len = strlen (s); - return - 0 <= re_search (&re_comp_buf, s, len, 0, len, (struct re_registers *) 0); -} - -#endif /* _REGEX_RE_COMP */ - - -/* POSIX.2 functions. Don't define these for Emacs. */ - -#ifndef emacs - -/* regcomp takes a regular expression as a string and compiles it. - - PREG is a regex_t *. We do not expect any fields to be initialized, - since POSIX says we shouldn't. Thus, we set - - `buffer' to the compiled pattern; - `used' to the length of the compiled pattern; - `syntax' to RE_SYNTAX_POSIX_EXTENDED if the - REG_EXTENDED bit in CFLAGS is set; otherwise, to - RE_SYNTAX_POSIX_BASIC; - `newline_anchor' to REG_NEWLINE being set in CFLAGS; - `fastmap' to an allocated space for the fastmap; - `fastmap_accurate' to zero; - `re_nsub' to the number of subexpressions in PATTERN. - - PATTERN is the address of the pattern string. - - CFLAGS is a series of bits which affect compilation. - - If REG_EXTENDED is set, we use POSIX extended syntax; otherwise, we - use POSIX basic syntax. - - If REG_NEWLINE is set, then . and [^...] don't match newline. - Also, regexec will try a match beginning after every newline. - - If REG_ICASE is set, then we considers upper- and lowercase - versions of letters to be equivalent when matching. - - If REG_NOSUB is set, then when PREG is passed to regexec, that - routine will report only success or failure, and nothing about the - registers. - - It returns 0 if it succeeds, nonzero if it doesn't. (See regex.h for - the return codes and their meanings.) */ - -int -regcomp (preg, pattern, cflags) - regex_t *preg; - const char *pattern; - int cflags; -{ - reg_errcode_t ret; - reg_syntax_t syntax - = (cflags & REG_EXTENDED) ? - RE_SYNTAX_POSIX_EXTENDED : RE_SYNTAX_POSIX_BASIC; - - /* regex_compile will allocate the space for the compiled pattern. */ - preg->buffer = 0; - preg->allocated = 0; - preg->used = 0; - - /* Try to allocate space for the fastmap. */ - preg->fastmap = (char *) malloc (1 << BYTEWIDTH); - - if (cflags & REG_ICASE) - { - unsigned i; - - preg->translate - = (RE_TRANSLATE_TYPE) malloc (CHAR_SET_SIZE - * sizeof (*(RE_TRANSLATE_TYPE)0)); - if (preg->translate == NULL) - return (int) REG_ESPACE; - - /* Map uppercase characters to corresponding lowercase ones. */ - for (i = 0; i < CHAR_SET_SIZE; i++) - preg->translate[i] = ISUPPER (i) ? TOLOWER (i) : i; - } - else - preg->translate = NULL; - - /* If REG_NEWLINE is set, newlines are treated differently. */ - if (cflags & REG_NEWLINE) - { /* REG_NEWLINE implies neither . nor [^...] match newline. */ - syntax &= ~RE_DOT_NEWLINE; - syntax |= RE_HAT_LISTS_NOT_NEWLINE; - /* It also changes the matching behavior. */ - preg->newline_anchor = 1; - } - else - preg->newline_anchor = 0; - - preg->no_sub = !!(cflags & REG_NOSUB); - - /* POSIX says a null character in the pattern terminates it, so we - can use strlen here in compiling the pattern. */ -# ifdef MBS_SUPPORT - if (MB_CUR_MAX != 1) - ret = wcs_regex_compile (pattern, strlen (pattern), syntax, preg); - else -# endif - ret = byte_regex_compile (pattern, strlen (pattern), syntax, preg); - - /* POSIX doesn't distinguish between an unmatched open-group and an - unmatched close-group: both are REG_EPAREN. */ - if (ret == REG_ERPAREN) ret = REG_EPAREN; - - if (ret == REG_NOERROR && preg->fastmap) - { - /* Compute the fastmap now, since regexec cannot modify the pattern - buffer. */ - if (re_compile_fastmap (preg) == -2) - { - /* Some error occurred while computing the fastmap, just forget - about it. */ - free (preg->fastmap); - preg->fastmap = NULL; - } - } - - return (int) ret; -} -#ifdef _LIBC -weak_alias (__regcomp, regcomp) -#endif - - -/* regexec searches for a given pattern, specified by PREG, in the - string STRING. - - If NMATCH is zero or REG_NOSUB was set in the cflags argument to - `regcomp', we ignore PMATCH. Otherwise, we assume PMATCH has at - least NMATCH elements, and we set them to the offsets of the - corresponding matched substrings. - - EFLAGS specifies `execution flags' which affect matching: if - REG_NOTBOL is set, then ^ does not match at the beginning of the - string; if REG_NOTEOL is set, then $ does not match at the end. - - We return 0 if we find a match and REG_NOMATCH if not. */ - -int -regexec (preg, string, nmatch, pmatch, eflags) - const regex_t *preg; - const char *string; - size_t nmatch; - regmatch_t pmatch[]; - int eflags; -{ - int ret; - struct re_registers regs; - regex_t private_preg; - int len = strlen (string); - boolean want_reg_info = !preg->no_sub && nmatch > 0; - - private_preg = *preg; - - private_preg.not_bol = !!(eflags & REG_NOTBOL); - private_preg.not_eol = !!(eflags & REG_NOTEOL); - - /* The user has told us exactly how many registers to return - information about, via `nmatch'. We have to pass that on to the - matching routines. */ - private_preg.regs_allocated = REGS_FIXED; - - if (want_reg_info) - { - regs.num_regs = nmatch; - regs.start = TALLOC (nmatch * 2, regoff_t); - if (regs.start == NULL) - return (int) REG_NOMATCH; - regs.end = regs.start + nmatch; - } - - /* Perform the searching operation. */ - ret = re_search (&private_preg, string, len, - /* start: */ 0, /* range: */ len, - want_reg_info ? ®s : (struct re_registers *) 0); - - /* Copy the register information to the POSIX structure. */ - if (want_reg_info) - { - if (ret >= 0) - { - unsigned r; - - for (r = 0; r < nmatch; r++) - { - pmatch[r].rm_so = regs.start[r]; - pmatch[r].rm_eo = regs.end[r]; - } - } - - /* If we needed the temporary register info, free the space now. */ - free (regs.start); - } - - /* We want zero return to mean success, unlike `re_search'. */ - return ret >= 0 ? (int) REG_NOERROR : (int) REG_NOMATCH; -} -#ifdef _LIBC -weak_alias (__regexec, regexec) -#endif - - -/* Returns a message corresponding to an error code, ERRCODE, returned - from either regcomp or regexec. We don't use PREG here. */ - -size_t -regerror (errcode, preg, errbuf, errbuf_size) - int errcode; - const regex_t *preg; - char *errbuf; - size_t errbuf_size; -{ - const char *msg; - size_t msg_size; - - if (errcode < 0 - || errcode >= (int) (sizeof (re_error_msgid_idx) - / sizeof (re_error_msgid_idx[0]))) - /* Only error codes returned by the rest of the code should be passed - to this routine. If we are given anything else, or if other regex - code generates an invalid error code, then the program has a bug. - Dump core so we can fix it. */ - abort (); - - msg = gettext (re_error_msgid + re_error_msgid_idx[errcode]); - - msg_size = strlen (msg) + 1; /* Includes the null. */ - - if (errbuf_size != 0) - { - if (msg_size > errbuf_size) - { -#if defined HAVE_MEMPCPY || defined _LIBC - *((char *) __mempcpy (errbuf, msg, errbuf_size - 1)) = '\0'; -#else - memcpy (errbuf, msg, errbuf_size - 1); - errbuf[errbuf_size - 1] = 0; -#endif - } - else - memcpy (errbuf, msg, msg_size); - } - - return msg_size; -} -#ifdef _LIBC -weak_alias (__regerror, regerror) -#endif - - -/* Free dynamically allocated space used by PREG. */ - -void -regfree (preg) - regex_t *preg; -{ - if (preg->buffer != NULL) - free (preg->buffer); - preg->buffer = NULL; - - preg->allocated = 0; - preg->used = 0; - - if (preg->fastmap != NULL) - free (preg->fastmap); - preg->fastmap = NULL; - preg->fastmap_accurate = 0; - - if (preg->translate != NULL) - free (preg->translate); - preg->translate = NULL; -} -#ifdef _LIBC -weak_alias (__regfree, regfree) -#endif - -#endif /* not emacs */ - -#endif /* not INSIDE_RECURSION */ - - - -#undef STORE_NUMBER -#undef STORE_NUMBER_AND_INCR -#undef EXTRACT_NUMBER -#undef EXTRACT_NUMBER_AND_INCR - -#undef DEBUG_PRINT_COMPILED_PATTERN -#undef DEBUG_PRINT_DOUBLE_STRING - -#undef INIT_FAIL_STACK -#undef RESET_FAIL_STACK -#undef DOUBLE_FAIL_STACK -#undef PUSH_PATTERN_OP -#undef PUSH_FAILURE_POINTER -#undef PUSH_FAILURE_INT -#undef PUSH_FAILURE_ELT -#undef POP_FAILURE_POINTER -#undef POP_FAILURE_INT -#undef POP_FAILURE_ELT -#undef DEBUG_PUSH -#undef DEBUG_POP -#undef PUSH_FAILURE_POINT -#undef POP_FAILURE_POINT - -#undef REG_UNSET_VALUE -#undef REG_UNSET - -#undef PATFETCH -#undef PATFETCH_RAW -#undef PATUNFETCH -#undef TRANSLATE - -#undef INIT_BUF_SIZE -#undef GET_BUFFER_SPACE -#undef BUF_PUSH -#undef BUF_PUSH_2 -#undef BUF_PUSH_3 -#undef STORE_JUMP -#undef STORE_JUMP2 -#undef INSERT_JUMP -#undef INSERT_JUMP2 -#undef EXTEND_BUFFER -#undef GET_UNSIGNED_NUMBER -#undef FREE_STACK_RETURN - -# undef POINTER_TO_OFFSET -# undef MATCHING_IN_FRST_STRING -# undef PREFETCH -# undef AT_STRINGS_BEG -# undef AT_STRINGS_END -# undef WORDCHAR_P -# undef FREE_VAR -# undef FREE_VARIABLES -# undef NO_HIGHEST_ACTIVE_REG -# undef NO_LOWEST_ACTIVE_REG - -# undef CHAR_T -# undef UCHAR_T -# undef COMPILED_BUFFER_VAR -# undef OFFSET_ADDRESS_SIZE -# undef CHAR_CLASS_SIZE -# undef PREFIX -# undef ARG_PREFIX -# undef PUT_CHAR -# undef BYTE -# undef WCHAR - -# define DEFINED_ONCE diff --git a/src/utilfuns/win32/dirent.cpp b/src/utilfuns/win32/dirent.cpp deleted file mode 100644 index 9880dde..0000000 --- a/src/utilfuns/win32/dirent.cpp +++ /dev/null @@ -1,131 +0,0 @@ -/* - - Implementation of POSIX directory browsing functions and types for Win32. - - Kevlin Henney (mailto:kevlin@acm.org), March 1997. - - Copyright Kevlin Henney, 1997. All rights reserved. - - Permission to use, copy, modify, and distribute this software and its - documentation for any purpose is hereby granted without fee, provided - that this copyright and permissions notice appear in all copies and - derivatives, and that no charge may be made for the software and its - documentation except to cover cost of distribution. - - This software is supplied "as is" without express or implied warranty. - - But that said, if there are any problems please get in touch. - -*/ - -#include <dirent.h> -#include <errno.h> -#include <io.h> -#include <stdlib.h> -#include <string.h> - -struct SWDLLEXPORT DIR -{ - long handle; /* -1 for failed rewind */ - struct _finddata_t info; - struct dirent result; /* d_name null iff first time */ - char *name; /* NTBS */ -}; - -SWDLLEXPORT DIR *opendir(const char *name) -{ - DIR *dir = 0; - - if(name && name[0]) - { - size_t base_length = strlen(name); - const char *all = /* the root directory is a special case... */ - strchr("/\\", name[base_length - 1]) ? "*" : "/*"; - - if((dir = (DIR *) malloc(sizeof *dir)) != 0 && - (dir->name = (char *) malloc(base_length + strlen(all) + 1)) != 0) - { - strcat(strcpy(dir->name, name), all); - - if((dir->handle = _findfirst(dir->name, &dir->info)) != -1) - { - dir->result.d_name = 0; - } - else /* rollback */ - { - free(dir->name); - free(dir); - dir = 0; - } - } - else /* rollback */ - { - free(dir); - dir = 0; - errno = ENOMEM; - } - } - else - { - errno = EINVAL; - } - - return dir; -} - -SWDLLEXPORT int closedir(DIR *dir) -{ - int result = -1; - - if(dir) - { - if(dir->handle != -1) - { - result = _findclose(dir->handle); - } - - free(dir->name); - free(dir); - } - - if(result == -1) /* map all errors to EBADF */ - { - errno = EBADF; - } - - return result; -} - -SWDLLEXPORT struct dirent *readdir(DIR *dir) -{ - struct dirent *result = 0; - - if(dir && dir->handle != -1) - { - if(!dir->result.d_name || _findnext(dir->handle, &dir->info) != -1) - { - result = &dir->result; - result->d_name = dir->info.name; - } - } - else - { - errno = EBADF; - } - - return result; -} - -SWDLLEXPORT void rewinddir(DIR *dir) -{ - if(dir && dir->handle != -1) - { - _findclose(dir->handle); - dir->handle = _findfirst(dir->name, &dir->info); - dir->result.d_name = 0; - } - else - { - errno = EBADF; - } -} diff --git a/src/utilfuns/win32/dirent.h b/src/utilfuns/win32/dirent.h deleted file mode 100644 index 79a5e1b..0000000 --- a/src/utilfuns/win32/dirent.h +++ /dev/null @@ -1,34 +0,0 @@ -/* - - Declaration of POSIX directory browsing functions and types for Win32. - - Kevlin Henney (mailto:kevlin@acm.org), March 1997. - - Copyright Kevlin Henney, 1997. All rights reserved. - - Permission to use, copy, modify, and distribute this software and its - documentation for any purpose is hereby granted without fee, provided - that this copyright and permissions notice appear in all copies and - derivatives, and that no charge may be made for the software and its - documentation except to cover cost of distribution. - -*/ - -#ifndef DIRENT_INCLUDED -#define DIRENT_INCLUDED - -#include <defs.h> - -typedef struct DIR DIR; - -struct SWDLLEXPORT dirent -{ - char *d_name; -}; - -SWDLLEXPORT DIR *opendir(const char *); -SWDLLEXPORT int closedir(DIR *); -SWDLLEXPORT struct dirent *readdir(DIR *); -SWDLLEXPORT void rewinddir(DIR *); - -#endif diff --git a/src/utilfuns/zlib/adler32.c b/src/utilfuns/zlib/adler32.c deleted file mode 100644 index af623ed..0000000 --- a/src/utilfuns/zlib/adler32.c +++ /dev/null @@ -1,179 +0,0 @@ -/* adler32.c -- compute the Adler-32 checksum of a data stream - * Copyright (C) 1995-2011 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* @(#) $Id: adler32.c 2809 2013-06-10 06:24:27Z chrislit $ */ - -#include "zutil.h" - -#define local static - -local uLong adler32_combine_ OF((uLong adler1, uLong adler2, z_off64_t len2)); - -#define BASE 65521 /* largest prime smaller than 65536 */ -#define NMAX 5552 -/* NMAX is the largest n such that 255n(n+1)/2 + (n+1)(BASE-1) <= 2^32-1 */ - -#define DO1(buf,i) {adler += (buf)[i]; sum2 += adler;} -#define DO2(buf,i) DO1(buf,i); DO1(buf,i+1); -#define DO4(buf,i) DO2(buf,i); DO2(buf,i+2); -#define DO8(buf,i) DO4(buf,i); DO4(buf,i+4); -#define DO16(buf) DO8(buf,0); DO8(buf,8); - -/* use NO_DIVIDE if your processor does not do division in hardware -- - try it both ways to see which is faster */ -#ifdef NO_DIVIDE -/* note that this assumes BASE is 65521, where 65536 % 65521 == 15 - (thank you to John Reiser for pointing this out) */ -# define CHOP(a) \ - do { \ - unsigned long tmp = a >> 16; \ - a &= 0xffffUL; \ - a += (tmp << 4) - tmp; \ - } while (0) -# define MOD28(a) \ - do { \ - CHOP(a); \ - if (a >= BASE) a -= BASE; \ - } while (0) -# define MOD(a) \ - do { \ - CHOP(a); \ - MOD28(a); \ - } while (0) -# define MOD63(a) \ - do { /* this assumes a is not negative */ \ - z_off64_t tmp = a >> 32; \ - a &= 0xffffffffL; \ - a += (tmp << 8) - (tmp << 5) + tmp; \ - tmp = a >> 16; \ - a &= 0xffffL; \ - a += (tmp << 4) - tmp; \ - tmp = a >> 16; \ - a &= 0xffffL; \ - a += (tmp << 4) - tmp; \ - if (a >= BASE) a -= BASE; \ - } while (0) -#else -# define MOD(a) a %= BASE -# define MOD28(a) a %= BASE -# define MOD63(a) a %= BASE -#endif - -/* ========================================================================= */ -uLong ZEXPORT adler32(adler, buf, len) - uLong adler; - const Bytef *buf; - uInt len; -{ - unsigned long sum2; - unsigned n; - - /* split Adler-32 into component sums */ - sum2 = (adler >> 16) & 0xffff; - adler &= 0xffff; - - /* in case user likes doing a byte at a time, keep it fast */ - if (len == 1) { - adler += buf[0]; - if (adler >= BASE) - adler -= BASE; - sum2 += adler; - if (sum2 >= BASE) - sum2 -= BASE; - return adler | (sum2 << 16); - } - - /* initial Adler-32 value (deferred check for len == 1 speed) */ - if (buf == Z_NULL) - return 1L; - - /* in case short lengths are provided, keep it somewhat fast */ - if (len < 16) { - while (len--) { - adler += *buf++; - sum2 += adler; - } - if (adler >= BASE) - adler -= BASE; - MOD28(sum2); /* only added so many BASE's */ - return adler | (sum2 << 16); - } - - /* do length NMAX blocks -- requires just one modulo operation */ - while (len >= NMAX) { - len -= NMAX; - n = NMAX / 16; /* NMAX is divisible by 16 */ - do { - DO16(buf); /* 16 sums unrolled */ - buf += 16; - } while (--n); - MOD(adler); - MOD(sum2); - } - - /* do remaining bytes (less than NMAX, still just one modulo) */ - if (len) { /* avoid modulos if none remaining */ - while (len >= 16) { - len -= 16; - DO16(buf); - buf += 16; - } - while (len--) { - adler += *buf++; - sum2 += adler; - } - MOD(adler); - MOD(sum2); - } - - /* return recombined sums */ - return adler | (sum2 << 16); -} - -/* ========================================================================= */ -local uLong adler32_combine_(adler1, adler2, len2) - uLong adler1; - uLong adler2; - z_off64_t len2; -{ - unsigned long sum1; - unsigned long sum2; - unsigned rem; - - /* for negative len, return invalid adler32 as a clue for debugging */ - if (len2 < 0) - return 0xffffffffUL; - - /* the derivation of this formula is left as an exercise for the reader */ - MOD63(len2); /* assumes len2 >= 0 */ - rem = (unsigned)len2; - sum1 = adler1 & 0xffff; - sum2 = rem * sum1; - MOD(sum2); - sum1 += (adler2 & 0xffff) + BASE - 1; - sum2 += ((adler1 >> 16) & 0xffff) + ((adler2 >> 16) & 0xffff) + BASE - rem; - if (sum1 >= BASE) sum1 -= BASE; - if (sum1 >= BASE) sum1 -= BASE; - if (sum2 >= (BASE << 1)) sum2 -= (BASE << 1); - if (sum2 >= BASE) sum2 -= BASE; - return sum1 | (sum2 << 16); -} - -/* ========================================================================= */ -uLong ZEXPORT adler32_combine(adler1, adler2, len2) - uLong adler1; - uLong adler2; - z_off_t len2; -{ - return adler32_combine_(adler1, adler2, len2); -} - -uLong ZEXPORT adler32_combine64(adler1, adler2, len2) - uLong adler1; - uLong adler2; - z_off64_t len2; -{ - return adler32_combine_(adler1, adler2, len2); -} diff --git a/src/utilfuns/zlib/compress.c b/src/utilfuns/zlib/compress.c deleted file mode 100644 index 5abf5a7..0000000 --- a/src/utilfuns/zlib/compress.c +++ /dev/null @@ -1,80 +0,0 @@ -/* compress.c -- compress a memory buffer - * Copyright (C) 1995-2005 Jean-loup Gailly. - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* @(#) $Id: compress.c 2809 2013-06-10 06:24:27Z chrislit $ */ - -#define ZLIB_INTERNAL -#include "zlib.h" - -/* =========================================================================== - Compresses the source buffer into the destination buffer. The level - parameter has the same meaning as in deflateInit. sourceLen is the byte - length of the source buffer. Upon entry, destLen is the total size of the - destination buffer, which must be at least 0.1% larger than sourceLen plus - 12 bytes. Upon exit, destLen is the actual size of the compressed buffer. - - compress2 returns Z_OK if success, Z_MEM_ERROR if there was not enough - memory, Z_BUF_ERROR if there was not enough room in the output buffer, - Z_STREAM_ERROR if the level parameter is invalid. -*/ -int ZEXPORT compress2 (dest, destLen, source, sourceLen, level) - Bytef *dest; - uLongf *destLen; - const Bytef *source; - uLong sourceLen; - int level; -{ - z_stream stream; - int err; - - stream.next_in = (z_const Bytef *)source; - stream.avail_in = (uInt)sourceLen; -#ifdef MAXSEG_64K - /* Check for source > 64K on 16-bit machine: */ - if ((uLong)stream.avail_in != sourceLen) return Z_BUF_ERROR; -#endif - stream.next_out = dest; - stream.avail_out = (uInt)*destLen; - if ((uLong)stream.avail_out != *destLen) return Z_BUF_ERROR; - - stream.zalloc = (alloc_func)0; - stream.zfree = (free_func)0; - stream.opaque = (voidpf)0; - - err = deflateInit(&stream, level); - if (err != Z_OK) return err; - - err = deflate(&stream, Z_FINISH); - if (err != Z_STREAM_END) { - deflateEnd(&stream); - return err == Z_OK ? Z_BUF_ERROR : err; - } - *destLen = stream.total_out; - - err = deflateEnd(&stream); - return err; -} - -/* =========================================================================== - */ -int ZEXPORT compress (dest, destLen, source, sourceLen) - Bytef *dest; - uLongf *destLen; - const Bytef *source; - uLong sourceLen; -{ - return compress2(dest, destLen, source, sourceLen, Z_DEFAULT_COMPRESSION); -} - -/* =========================================================================== - If the default memLevel or windowBits for deflateInit() is changed, then - this function needs to be updated. - */ -uLong ZEXPORT compressBound (sourceLen) - uLong sourceLen; -{ - return sourceLen + (sourceLen >> 12) + (sourceLen >> 14) + - (sourceLen >> 25) + 13; -} diff --git a/src/utilfuns/zlib/crc32.c b/src/utilfuns/zlib/crc32.c deleted file mode 100644 index 6a056f3..0000000 --- a/src/utilfuns/zlib/crc32.c +++ /dev/null @@ -1,425 +0,0 @@ -/* crc32.c -- compute the CRC-32 of a data stream - * Copyright (C) 1995-2006, 2010, 2011, 2012 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h - * - * Thanks to Rodney Brown <rbrown64@csc.com.au> for his contribution of faster - * CRC methods: exclusive-oring 32 bits of data at a time, and pre-computing - * tables for updating the shift register in one step with three exclusive-ors - * instead of four steps with four exclusive-ors. This results in about a - * factor of two increase in speed on a Power PC G4 (PPC7455) using gcc -O3. - */ - -/* @(#) $Id: crc32.c 2809 2013-06-10 06:24:27Z chrislit $ */ - -/* - Note on the use of DYNAMIC_CRC_TABLE: there is no mutex or semaphore - protection on the static variables used to control the first-use generation - of the crc tables. Therefore, if you #define DYNAMIC_CRC_TABLE, you should - first call get_crc_table() to initialize the tables before allowing more than - one thread to use crc32(). - - DYNAMIC_CRC_TABLE and MAKECRCH can be #defined to write out crc32.h. - */ - -#ifdef MAKECRCH -# include <stdio.h> -# ifndef DYNAMIC_CRC_TABLE -# define DYNAMIC_CRC_TABLE -# endif /* !DYNAMIC_CRC_TABLE */ -#endif /* MAKECRCH */ - -#include "zutil.h" /* for STDC and FAR definitions */ - -#define local static - -/* Definitions for doing the crc four data bytes at a time. */ -#if !defined(NOBYFOUR) && defined(Z_U4) -# define BYFOUR -#endif -#ifdef BYFOUR - local unsigned long crc32_little OF((unsigned long, - const unsigned char FAR *, unsigned)); - local unsigned long crc32_big OF((unsigned long, - const unsigned char FAR *, unsigned)); -# define TBLS 8 -#else -# define TBLS 1 -#endif /* BYFOUR */ - -/* Local functions for crc concatenation */ -local unsigned long gf2_matrix_times OF((unsigned long *mat, - unsigned long vec)); -local void gf2_matrix_square OF((unsigned long *square, unsigned long *mat)); -local uLong crc32_combine_ OF((uLong crc1, uLong crc2, z_off64_t len2)); - - -#ifdef DYNAMIC_CRC_TABLE - -local volatile int crc_table_empty = 1; -local z_crc_t FAR crc_table[TBLS][256]; -local void make_crc_table OF((void)); -#ifdef MAKECRCH - local void write_table OF((FILE *, const z_crc_t FAR *)); -#endif /* MAKECRCH */ -/* - Generate tables for a byte-wise 32-bit CRC calculation on the polynomial: - x^32+x^26+x^23+x^22+x^16+x^12+x^11+x^10+x^8+x^7+x^5+x^4+x^2+x+1. - - Polynomials over GF(2) are represented in binary, one bit per coefficient, - with the lowest powers in the most significant bit. Then adding polynomials - is just exclusive-or, and multiplying a polynomial by x is a right shift by - one. If we call the above polynomial p, and represent a byte as the - polynomial q, also with the lowest power in the most significant bit (so the - byte 0xb1 is the polynomial x^7+x^3+x+1), then the CRC is (q*x^32) mod p, - where a mod b means the remainder after dividing a by b. - - This calculation is done using the shift-register method of multiplying and - taking the remainder. The register is initialized to zero, and for each - incoming bit, x^32 is added mod p to the register if the bit is a one (where - x^32 mod p is p+x^32 = x^26+...+1), and the register is multiplied mod p by - x (which is shifting right by one and adding x^32 mod p if the bit shifted - out is a one). We start with the highest power (least significant bit) of - q and repeat for all eight bits of q. - - The first table is simply the CRC of all possible eight bit values. This is - all the information needed to generate CRCs on data a byte at a time for all - combinations of CRC register values and incoming bytes. The remaining tables - allow for word-at-a-time CRC calculation for both big-endian and little- - endian machines, where a word is four bytes. -*/ -local void make_crc_table() -{ - z_crc_t c; - int n, k; - z_crc_t poly; /* polynomial exclusive-or pattern */ - /* terms of polynomial defining this crc (except x^32): */ - static volatile int first = 1; /* flag to limit concurrent making */ - static const unsigned char p[] = {0,1,2,4,5,7,8,10,11,12,16,22,23,26}; - - /* See if another task is already doing this (not thread-safe, but better - than nothing -- significantly reduces duration of vulnerability in - case the advice about DYNAMIC_CRC_TABLE is ignored) */ - if (first) { - first = 0; - - /* make exclusive-or pattern from polynomial (0xedb88320UL) */ - poly = 0; - for (n = 0; n < (int)(sizeof(p)/sizeof(unsigned char)); n++) - poly |= (z_crc_t)1 << (31 - p[n]); - - /* generate a crc for every 8-bit value */ - for (n = 0; n < 256; n++) { - c = (z_crc_t)n; - for (k = 0; k < 8; k++) - c = c & 1 ? poly ^ (c >> 1) : c >> 1; - crc_table[0][n] = c; - } - -#ifdef BYFOUR - /* generate crc for each value followed by one, two, and three zeros, - and then the byte reversal of those as well as the first table */ - for (n = 0; n < 256; n++) { - c = crc_table[0][n]; - crc_table[4][n] = ZSWAP32(c); - for (k = 1; k < 4; k++) { - c = crc_table[0][c & 0xff] ^ (c >> 8); - crc_table[k][n] = c; - crc_table[k + 4][n] = ZSWAP32(c); - } - } -#endif /* BYFOUR */ - - crc_table_empty = 0; - } - else { /* not first */ - /* wait for the other guy to finish (not efficient, but rare) */ - while (crc_table_empty) - ; - } - -#ifdef MAKECRCH - /* write out CRC tables to crc32.h */ - { - FILE *out; - - out = fopen("crc32.h", "w"); - if (out == NULL) return; - fprintf(out, "/* crc32.h -- tables for rapid CRC calculation\n"); - fprintf(out, " * Generated automatically by crc32.c\n */\n\n"); - fprintf(out, "local const z_crc_t FAR "); - fprintf(out, "crc_table[TBLS][256] =\n{\n {\n"); - write_table(out, crc_table[0]); -# ifdef BYFOUR - fprintf(out, "#ifdef BYFOUR\n"); - for (k = 1; k < 8; k++) { - fprintf(out, " },\n {\n"); - write_table(out, crc_table[k]); - } - fprintf(out, "#endif\n"); -# endif /* BYFOUR */ - fprintf(out, " }\n};\n"); - fclose(out); - } -#endif /* MAKECRCH */ -} - -#ifdef MAKECRCH -local void write_table(out, table) - FILE *out; - const z_crc_t FAR *table; -{ - int n; - - for (n = 0; n < 256; n++) - fprintf(out, "%s0x%08lxUL%s", n % 5 ? "" : " ", - (unsigned long)(table[n]), - n == 255 ? "\n" : (n % 5 == 4 ? ",\n" : ", ")); -} -#endif /* MAKECRCH */ - -#else /* !DYNAMIC_CRC_TABLE */ -/* ======================================================================== - * Tables of CRC-32s of all single-byte values, made by make_crc_table(). - */ -#include "crc32.h" -#endif /* DYNAMIC_CRC_TABLE */ - -/* ========================================================================= - * This function can be used by asm versions of crc32() - */ -const z_crc_t FAR * ZEXPORT get_crc_table() -{ -#ifdef DYNAMIC_CRC_TABLE - if (crc_table_empty) - make_crc_table(); -#endif /* DYNAMIC_CRC_TABLE */ - return (const z_crc_t FAR *)crc_table; -} - -/* ========================================================================= */ -#define DO1 crc = crc_table[0][((int)crc ^ (*buf++)) & 0xff] ^ (crc >> 8) -#define DO8 DO1; DO1; DO1; DO1; DO1; DO1; DO1; DO1 - -/* ========================================================================= */ -unsigned long ZEXPORT crc32(crc, buf, len) - unsigned long crc; - const unsigned char FAR *buf; - uInt len; -{ - if (buf == Z_NULL) return 0UL; - -#ifdef DYNAMIC_CRC_TABLE - if (crc_table_empty) - make_crc_table(); -#endif /* DYNAMIC_CRC_TABLE */ - -#ifdef BYFOUR - if (sizeof(void *) == sizeof(ptrdiff_t)) { - z_crc_t endian; - - endian = 1; - if (*((unsigned char *)(&endian))) - return crc32_little(crc, buf, len); - else - return crc32_big(crc, buf, len); - } -#endif /* BYFOUR */ - crc = crc ^ 0xffffffffUL; - while (len >= 8) { - DO8; - len -= 8; - } - if (len) do { - DO1; - } while (--len); - return crc ^ 0xffffffffUL; -} - -#ifdef BYFOUR - -/* ========================================================================= */ -#define DOLIT4 c ^= *buf4++; \ - c = crc_table[3][c & 0xff] ^ crc_table[2][(c >> 8) & 0xff] ^ \ - crc_table[1][(c >> 16) & 0xff] ^ crc_table[0][c >> 24] -#define DOLIT32 DOLIT4; DOLIT4; DOLIT4; DOLIT4; DOLIT4; DOLIT4; DOLIT4; DOLIT4 - -/* ========================================================================= */ -local unsigned long crc32_little(crc, buf, len) - unsigned long crc; - const unsigned char FAR *buf; - unsigned len; -{ - register z_crc_t c; - register const z_crc_t FAR *buf4; - - c = (z_crc_t)crc; - c = ~c; - while (len && ((ptrdiff_t)buf & 3)) { - c = crc_table[0][(c ^ *buf++) & 0xff] ^ (c >> 8); - len--; - } - - buf4 = (const z_crc_t FAR *)(const void FAR *)buf; - while (len >= 32) { - DOLIT32; - len -= 32; - } - while (len >= 4) { - DOLIT4; - len -= 4; - } - buf = (const unsigned char FAR *)buf4; - - if (len) do { - c = crc_table[0][(c ^ *buf++) & 0xff] ^ (c >> 8); - } while (--len); - c = ~c; - return (unsigned long)c; -} - -/* ========================================================================= */ -#define DOBIG4 c ^= *++buf4; \ - c = crc_table[4][c & 0xff] ^ crc_table[5][(c >> 8) & 0xff] ^ \ - crc_table[6][(c >> 16) & 0xff] ^ crc_table[7][c >> 24] -#define DOBIG32 DOBIG4; DOBIG4; DOBIG4; DOBIG4; DOBIG4; DOBIG4; DOBIG4; DOBIG4 - -/* ========================================================================= */ -local unsigned long crc32_big(crc, buf, len) - unsigned long crc; - const unsigned char FAR *buf; - unsigned len; -{ - register z_crc_t c; - register const z_crc_t FAR *buf4; - - c = ZSWAP32((z_crc_t)crc); - c = ~c; - while (len && ((ptrdiff_t)buf & 3)) { - c = crc_table[4][(c >> 24) ^ *buf++] ^ (c << 8); - len--; - } - - buf4 = (const z_crc_t FAR *)(const void FAR *)buf; - buf4--; - while (len >= 32) { - DOBIG32; - len -= 32; - } - while (len >= 4) { - DOBIG4; - len -= 4; - } - buf4++; - buf = (const unsigned char FAR *)buf4; - - if (len) do { - c = crc_table[4][(c >> 24) ^ *buf++] ^ (c << 8); - } while (--len); - c = ~c; - return (unsigned long)(ZSWAP32(c)); -} - -#endif /* BYFOUR */ - -#define GF2_DIM 32 /* dimension of GF(2) vectors (length of CRC) */ - -/* ========================================================================= */ -local unsigned long gf2_matrix_times(mat, vec) - unsigned long *mat; - unsigned long vec; -{ - unsigned long sum; - - sum = 0; - while (vec) { - if (vec & 1) - sum ^= *mat; - vec >>= 1; - mat++; - } - return sum; -} - -/* ========================================================================= */ -local void gf2_matrix_square(square, mat) - unsigned long *square; - unsigned long *mat; -{ - int n; - - for (n = 0; n < GF2_DIM; n++) - square[n] = gf2_matrix_times(mat, mat[n]); -} - -/* ========================================================================= */ -local uLong crc32_combine_(crc1, crc2, len2) - uLong crc1; - uLong crc2; - z_off64_t len2; -{ - int n; - unsigned long row; - unsigned long even[GF2_DIM]; /* even-power-of-two zeros operator */ - unsigned long odd[GF2_DIM]; /* odd-power-of-two zeros operator */ - - /* degenerate case (also disallow negative lengths) */ - if (len2 <= 0) - return crc1; - - /* put operator for one zero bit in odd */ - odd[0] = 0xedb88320UL; /* CRC-32 polynomial */ - row = 1; - for (n = 1; n < GF2_DIM; n++) { - odd[n] = row; - row <<= 1; - } - - /* put operator for two zero bits in even */ - gf2_matrix_square(even, odd); - - /* put operator for four zero bits in odd */ - gf2_matrix_square(odd, even); - - /* apply len2 zeros to crc1 (first square will put the operator for one - zero byte, eight zero bits, in even) */ - do { - /* apply zeros operator for this bit of len2 */ - gf2_matrix_square(even, odd); - if (len2 & 1) - crc1 = gf2_matrix_times(even, crc1); - len2 >>= 1; - - /* if no more bits set, then done */ - if (len2 == 0) - break; - - /* another iteration of the loop with odd and even swapped */ - gf2_matrix_square(odd, even); - if (len2 & 1) - crc1 = gf2_matrix_times(odd, crc1); - len2 >>= 1; - - /* if no more bits set, then done */ - } while (len2 != 0); - - /* return combined crc */ - crc1 ^= crc2; - return crc1; -} - -/* ========================================================================= */ -uLong ZEXPORT crc32_combine(crc1, crc2, len2) - uLong crc1; - uLong crc2; - z_off_t len2; -{ - return crc32_combine_(crc1, crc2, len2); -} - -uLong ZEXPORT crc32_combine64(crc1, crc2, len2) - uLong crc1; - uLong crc2; - z_off64_t len2; -{ - return crc32_combine_(crc1, crc2, len2); -} diff --git a/src/utilfuns/zlib/crc32.h b/src/utilfuns/zlib/crc32.h deleted file mode 100644 index 9e0c778..0000000 --- a/src/utilfuns/zlib/crc32.h +++ /dev/null @@ -1,441 +0,0 @@ -/* crc32.h -- tables for rapid CRC calculation - * Generated automatically by crc32.c - */ - -local const z_crc_t FAR crc_table[TBLS][256] = -{ - { - 0x00000000UL, 0x77073096UL, 0xee0e612cUL, 0x990951baUL, 0x076dc419UL, - 0x706af48fUL, 0xe963a535UL, 0x9e6495a3UL, 0x0edb8832UL, 0x79dcb8a4UL, - 0xe0d5e91eUL, 0x97d2d988UL, 0x09b64c2bUL, 0x7eb17cbdUL, 0xe7b82d07UL, - 0x90bf1d91UL, 0x1db71064UL, 0x6ab020f2UL, 0xf3b97148UL, 0x84be41deUL, - 0x1adad47dUL, 0x6ddde4ebUL, 0xf4d4b551UL, 0x83d385c7UL, 0x136c9856UL, - 0x646ba8c0UL, 0xfd62f97aUL, 0x8a65c9ecUL, 0x14015c4fUL, 0x63066cd9UL, - 0xfa0f3d63UL, 0x8d080df5UL, 0x3b6e20c8UL, 0x4c69105eUL, 0xd56041e4UL, - 0xa2677172UL, 0x3c03e4d1UL, 0x4b04d447UL, 0xd20d85fdUL, 0xa50ab56bUL, - 0x35b5a8faUL, 0x42b2986cUL, 0xdbbbc9d6UL, 0xacbcf940UL, 0x32d86ce3UL, - 0x45df5c75UL, 0xdcd60dcfUL, 0xabd13d59UL, 0x26d930acUL, 0x51de003aUL, - 0xc8d75180UL, 0xbfd06116UL, 0x21b4f4b5UL, 0x56b3c423UL, 0xcfba9599UL, - 0xb8bda50fUL, 0x2802b89eUL, 0x5f058808UL, 0xc60cd9b2UL, 0xb10be924UL, - 0x2f6f7c87UL, 0x58684c11UL, 0xc1611dabUL, 0xb6662d3dUL, 0x76dc4190UL, - 0x01db7106UL, 0x98d220bcUL, 0xefd5102aUL, 0x71b18589UL, 0x06b6b51fUL, - 0x9fbfe4a5UL, 0xe8b8d433UL, 0x7807c9a2UL, 0x0f00f934UL, 0x9609a88eUL, - 0xe10e9818UL, 0x7f6a0dbbUL, 0x086d3d2dUL, 0x91646c97UL, 0xe6635c01UL, - 0x6b6b51f4UL, 0x1c6c6162UL, 0x856530d8UL, 0xf262004eUL, 0x6c0695edUL, - 0x1b01a57bUL, 0x8208f4c1UL, 0xf50fc457UL, 0x65b0d9c6UL, 0x12b7e950UL, - 0x8bbeb8eaUL, 0xfcb9887cUL, 0x62dd1ddfUL, 0x15da2d49UL, 0x8cd37cf3UL, - 0xfbd44c65UL, 0x4db26158UL, 0x3ab551ceUL, 0xa3bc0074UL, 0xd4bb30e2UL, - 0x4adfa541UL, 0x3dd895d7UL, 0xa4d1c46dUL, 0xd3d6f4fbUL, 0x4369e96aUL, - 0x346ed9fcUL, 0xad678846UL, 0xda60b8d0UL, 0x44042d73UL, 0x33031de5UL, - 0xaa0a4c5fUL, 0xdd0d7cc9UL, 0x5005713cUL, 0x270241aaUL, 0xbe0b1010UL, - 0xc90c2086UL, 0x5768b525UL, 0x206f85b3UL, 0xb966d409UL, 0xce61e49fUL, - 0x5edef90eUL, 0x29d9c998UL, 0xb0d09822UL, 0xc7d7a8b4UL, 0x59b33d17UL, - 0x2eb40d81UL, 0xb7bd5c3bUL, 0xc0ba6cadUL, 0xedb88320UL, 0x9abfb3b6UL, - 0x03b6e20cUL, 0x74b1d29aUL, 0xead54739UL, 0x9dd277afUL, 0x04db2615UL, - 0x73dc1683UL, 0xe3630b12UL, 0x94643b84UL, 0x0d6d6a3eUL, 0x7a6a5aa8UL, - 0xe40ecf0bUL, 0x9309ff9dUL, 0x0a00ae27UL, 0x7d079eb1UL, 0xf00f9344UL, - 0x8708a3d2UL, 0x1e01f268UL, 0x6906c2feUL, 0xf762575dUL, 0x806567cbUL, - 0x196c3671UL, 0x6e6b06e7UL, 0xfed41b76UL, 0x89d32be0UL, 0x10da7a5aUL, - 0x67dd4accUL, 0xf9b9df6fUL, 0x8ebeeff9UL, 0x17b7be43UL, 0x60b08ed5UL, - 0xd6d6a3e8UL, 0xa1d1937eUL, 0x38d8c2c4UL, 0x4fdff252UL, 0xd1bb67f1UL, - 0xa6bc5767UL, 0x3fb506ddUL, 0x48b2364bUL, 0xd80d2bdaUL, 0xaf0a1b4cUL, - 0x36034af6UL, 0x41047a60UL, 0xdf60efc3UL, 0xa867df55UL, 0x316e8eefUL, - 0x4669be79UL, 0xcb61b38cUL, 0xbc66831aUL, 0x256fd2a0UL, 0x5268e236UL, - 0xcc0c7795UL, 0xbb0b4703UL, 0x220216b9UL, 0x5505262fUL, 0xc5ba3bbeUL, - 0xb2bd0b28UL, 0x2bb45a92UL, 0x5cb36a04UL, 0xc2d7ffa7UL, 0xb5d0cf31UL, - 0x2cd99e8bUL, 0x5bdeae1dUL, 0x9b64c2b0UL, 0xec63f226UL, 0x756aa39cUL, - 0x026d930aUL, 0x9c0906a9UL, 0xeb0e363fUL, 0x72076785UL, 0x05005713UL, - 0x95bf4a82UL, 0xe2b87a14UL, 0x7bb12baeUL, 0x0cb61b38UL, 0x92d28e9bUL, - 0xe5d5be0dUL, 0x7cdcefb7UL, 0x0bdbdf21UL, 0x86d3d2d4UL, 0xf1d4e242UL, - 0x68ddb3f8UL, 0x1fda836eUL, 0x81be16cdUL, 0xf6b9265bUL, 0x6fb077e1UL, - 0x18b74777UL, 0x88085ae6UL, 0xff0f6a70UL, 0x66063bcaUL, 0x11010b5cUL, - 0x8f659effUL, 0xf862ae69UL, 0x616bffd3UL, 0x166ccf45UL, 0xa00ae278UL, - 0xd70dd2eeUL, 0x4e048354UL, 0x3903b3c2UL, 0xa7672661UL, 0xd06016f7UL, - 0x4969474dUL, 0x3e6e77dbUL, 0xaed16a4aUL, 0xd9d65adcUL, 0x40df0b66UL, - 0x37d83bf0UL, 0xa9bcae53UL, 0xdebb9ec5UL, 0x47b2cf7fUL, 0x30b5ffe9UL, - 0xbdbdf21cUL, 0xcabac28aUL, 0x53b39330UL, 0x24b4a3a6UL, 0xbad03605UL, - 0xcdd70693UL, 0x54de5729UL, 0x23d967bfUL, 0xb3667a2eUL, 0xc4614ab8UL, - 0x5d681b02UL, 0x2a6f2b94UL, 0xb40bbe37UL, 0xc30c8ea1UL, 0x5a05df1bUL, - 0x2d02ef8dUL -#ifdef BYFOUR - }, - { - 0x00000000UL, 0x191b3141UL, 0x32366282UL, 0x2b2d53c3UL, 0x646cc504UL, - 0x7d77f445UL, 0x565aa786UL, 0x4f4196c7UL, 0xc8d98a08UL, 0xd1c2bb49UL, - 0xfaefe88aUL, 0xe3f4d9cbUL, 0xacb54f0cUL, 0xb5ae7e4dUL, 0x9e832d8eUL, - 0x87981ccfUL, 0x4ac21251UL, 0x53d92310UL, 0x78f470d3UL, 0x61ef4192UL, - 0x2eaed755UL, 0x37b5e614UL, 0x1c98b5d7UL, 0x05838496UL, 0x821b9859UL, - 0x9b00a918UL, 0xb02dfadbUL, 0xa936cb9aUL, 0xe6775d5dUL, 0xff6c6c1cUL, - 0xd4413fdfUL, 0xcd5a0e9eUL, 0x958424a2UL, 0x8c9f15e3UL, 0xa7b24620UL, - 0xbea97761UL, 0xf1e8e1a6UL, 0xe8f3d0e7UL, 0xc3de8324UL, 0xdac5b265UL, - 0x5d5daeaaUL, 0x44469febUL, 0x6f6bcc28UL, 0x7670fd69UL, 0x39316baeUL, - 0x202a5aefUL, 0x0b07092cUL, 0x121c386dUL, 0xdf4636f3UL, 0xc65d07b2UL, - 0xed705471UL, 0xf46b6530UL, 0xbb2af3f7UL, 0xa231c2b6UL, 0x891c9175UL, - 0x9007a034UL, 0x179fbcfbUL, 0x0e848dbaUL, 0x25a9de79UL, 0x3cb2ef38UL, - 0x73f379ffUL, 0x6ae848beUL, 0x41c51b7dUL, 0x58de2a3cUL, 0xf0794f05UL, - 0xe9627e44UL, 0xc24f2d87UL, 0xdb541cc6UL, 0x94158a01UL, 0x8d0ebb40UL, - 0xa623e883UL, 0xbf38d9c2UL, 0x38a0c50dUL, 0x21bbf44cUL, 0x0a96a78fUL, - 0x138d96ceUL, 0x5ccc0009UL, 0x45d73148UL, 0x6efa628bUL, 0x77e153caUL, - 0xbabb5d54UL, 0xa3a06c15UL, 0x888d3fd6UL, 0x91960e97UL, 0xded79850UL, - 0xc7cca911UL, 0xece1fad2UL, 0xf5facb93UL, 0x7262d75cUL, 0x6b79e61dUL, - 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0x546044b4UL, 0x3107f80cUL, 0xdfa84d1eUL, 0xbacff1a6UL, 0xecdf92feUL, - 0x89b82e46UL, 0x67179b54UL, 0x027027ecUL, 0xbb48f071UL, 0xde2f4cc9UL, - 0x3080f9dbUL, 0x55e74563UL, 0x9ca03f6bUL, 0xf9c783d3UL, 0x176836c1UL, - 0x720f8a79UL, 0xcb375de4UL, 0xae50e15cUL, 0x40ff544eUL, 0x2598e8f6UL, - 0x73888baeUL, 0x16ef3716UL, 0xf8408204UL, 0x9d273ebcUL, 0x241fe921UL, - 0x41785599UL, 0xafd7e08bUL, 0xcab05c33UL, 0x3bb659edUL, 0x5ed1e555UL, - 0xb07e5047UL, 0xd519ecffUL, 0x6c213b62UL, 0x094687daUL, 0xe7e932c8UL, - 0x828e8e70UL, 0xd49eed28UL, 0xb1f95190UL, 0x5f56e482UL, 0x3a31583aUL, - 0x83098fa7UL, 0xe66e331fUL, 0x08c1860dUL, 0x6da63ab5UL, 0xa4e140bdUL, - 0xc186fc05UL, 0x2f294917UL, 0x4a4ef5afUL, 0xf3762232UL, 0x96119e8aUL, - 0x78be2b98UL, 0x1dd99720UL, 0x4bc9f478UL, 0x2eae48c0UL, 0xc001fdd2UL, - 0xa566416aUL, 0x1c5e96f7UL, 0x79392a4fUL, 0x97969f5dUL, 0xf2f123e5UL, - 0x05196b4dUL, 0x607ed7f5UL, 0x8ed162e7UL, 0xebb6de5fUL, 0x528e09c2UL, - 0x37e9b57aUL, 0xd9460068UL, 0xbc21bcd0UL, 0xea31df88UL, 0x8f566330UL, - 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0xa7166686UL, 0xc271da3eUL, 0x2cde6f2cUL, 0x49b9d394UL, 0xf0810409UL, - 0x95e6b8b1UL, 0x7b490da3UL, 0x1e2eb11bUL, 0x483ed243UL, 0x2d596efbUL, - 0xc3f6dbe9UL, 0xa6916751UL, 0x1fa9b0ccUL, 0x7ace0c74UL, 0x9461b966UL, - 0xf10605deUL -#endif - } -}; diff --git a/src/utilfuns/zlib/deflate.c b/src/utilfuns/zlib/deflate.c deleted file mode 100644 index 0e6969a..0000000 --- a/src/utilfuns/zlib/deflate.c +++ /dev/null @@ -1,1967 +0,0 @@ -/* deflate.c -- compress data using the deflation algorithm - * Copyright (C) 1995-2013 Jean-loup Gailly and Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* - * ALGORITHM - * - * The "deflation" process depends on being able to identify portions - * of the input text which are identical to earlier input (within a - * sliding window trailing behind the input currently being processed). - * - * The most straightforward technique turns out to be the fastest for - * most input files: try all possible matches and select the longest. - * The key feature of this algorithm is that insertions into the string - * dictionary are very simple and thus fast, and deletions are avoided - * completely. Insertions are performed at each input character, whereas - * string matches are performed only when the previous match ends. So it - * is preferable to spend more time in matches to allow very fast string - * insertions and avoid deletions. The matching algorithm for small - * strings is inspired from that of Rabin & Karp. A brute force approach - * is used to find longer strings when a small match has been found. - * A similar algorithm is used in comic (by Jan-Mark Wams) and freeze - * (by Leonid Broukhis). - * A previous version of this file used a more sophisticated algorithm - * (by Fiala and Greene) which is guaranteed to run in linear amortized - * time, but has a larger average cost, uses more memory and is patented. - * However the F&G algorithm may be faster for some highly redundant - * files if the parameter max_chain_length (described below) is too large. - * - * ACKNOWLEDGEMENTS - * - * The idea of lazy evaluation of matches is due to Jan-Mark Wams, and - * I found it in 'freeze' written by Leonid Broukhis. - * Thanks to many people for bug reports and testing. - * - * REFERENCES - * - * Deutsch, L.P.,"DEFLATE Compressed Data Format Specification". - * Available in http://tools.ietf.org/html/rfc1951 - * - * A description of the Rabin and Karp algorithm is given in the book - * "Algorithms" by R. Sedgewick, Addison-Wesley, p252. - * - * Fiala,E.R., and Greene,D.H. - * Data Compression with Finite Windows, Comm.ACM, 32,4 (1989) 490-595 - * - */ - -/* @(#) $Id: deflate.c 2809 2013-06-10 06:24:27Z chrislit $ */ - -#include "deflate.h" - -const char deflate_copyright[] = - " deflate 1.2.8 Copyright 1995-2013 Jean-loup Gailly and Mark Adler "; -/* - If you use the zlib library in a product, an acknowledgment is welcome - in the documentation of your product. If for some reason you cannot - include such an acknowledgment, I would appreciate that you keep this - copyright string in the executable of your product. - */ - -/* =========================================================================== - * Function prototypes. - */ -typedef enum { - need_more, /* block not completed, need more input or more output */ - block_done, /* block flush performed */ - finish_started, /* finish started, need only more output at next deflate */ - finish_done /* finish done, accept no more input or output */ -} block_state; - -typedef block_state (*compress_func) OF((deflate_state *s, int flush)); -/* Compression function. Returns the block state after the call. */ - -local void fill_window OF((deflate_state *s)); -local block_state deflate_stored OF((deflate_state *s, int flush)); -local block_state deflate_fast OF((deflate_state *s, int flush)); -#ifndef FASTEST -local block_state deflate_slow OF((deflate_state *s, int flush)); -#endif -local block_state deflate_rle OF((deflate_state *s, int flush)); -local block_state deflate_huff OF((deflate_state *s, int flush)); -local void lm_init OF((deflate_state *s)); -local void putShortMSB OF((deflate_state *s, uInt b)); -local void flush_pending OF((z_streamp strm)); -local int read_buf OF((z_streamp strm, Bytef *buf, unsigned size)); -#ifdef ASMV - void match_init OF((void)); /* asm code initialization */ - uInt longest_match OF((deflate_state *s, IPos cur_match)); -#else -local uInt longest_match OF((deflate_state *s, IPos cur_match)); -#endif - -#ifdef DEBUG -local void check_match OF((deflate_state *s, IPos start, IPos match, - int length)); -#endif - -/* =========================================================================== - * Local data - */ - -#define NIL 0 -/* Tail of hash chains */ - -#ifndef TOO_FAR -# define TOO_FAR 4096 -#endif -/* Matches of length 3 are discarded if their distance exceeds TOO_FAR */ - -/* Values for max_lazy_match, good_match and max_chain_length, depending on - * the desired pack level (0..9). The values given below have been tuned to - * exclude worst case performance for pathological files. Better values may be - * found for specific files. - */ -typedef struct config_s { - ush good_length; /* reduce lazy search above this match length */ - ush max_lazy; /* do not perform lazy search above this match length */ - ush nice_length; /* quit search above this match length */ - ush max_chain; - compress_func func; -} config; - -#ifdef FASTEST -local const config configuration_table[2] = { -/* good lazy nice chain */ -/* 0 */ {0, 0, 0, 0, deflate_stored}, /* store only */ -/* 1 */ {4, 4, 8, 4, deflate_fast}}; /* max speed, no lazy matches */ -#else -local const config configuration_table[10] = { -/* good lazy nice chain */ -/* 0 */ {0, 0, 0, 0, deflate_stored}, /* store only */ -/* 1 */ {4, 4, 8, 4, deflate_fast}, /* max speed, no lazy matches */ -/* 2 */ {4, 5, 16, 8, deflate_fast}, -/* 3 */ {4, 6, 32, 32, deflate_fast}, - -/* 4 */ {4, 4, 16, 16, deflate_slow}, /* lazy matches */ -/* 5 */ {8, 16, 32, 32, deflate_slow}, -/* 6 */ {8, 16, 128, 128, deflate_slow}, -/* 7 */ {8, 32, 128, 256, deflate_slow}, -/* 8 */ {32, 128, 258, 1024, deflate_slow}, -/* 9 */ {32, 258, 258, 4096, deflate_slow}}; /* max compression */ -#endif - -/* Note: the deflate() code requires max_lazy >= MIN_MATCH and max_chain >= 4 - * For deflate_fast() (levels <= 3) good is ignored and lazy has a different - * meaning. - */ - -#define EQUAL 0 -/* result of memcmp for equal strings */ - -#ifndef NO_DUMMY_DECL -struct static_tree_desc_s {int dummy;}; /* for buggy compilers */ -#endif - -/* rank Z_BLOCK between Z_NO_FLUSH and Z_PARTIAL_FLUSH */ -#define RANK(f) (((f) << 1) - ((f) > 4 ? 9 : 0)) - -/* =========================================================================== - * Update a hash value with the given input byte - * IN assertion: all calls to to UPDATE_HASH are made with consecutive - * input characters, so that a running hash key can be computed from the - * previous key instead of complete recalculation each time. - */ -#define UPDATE_HASH(s,h,c) (h = (((h)<<s->hash_shift) ^ (c)) & s->hash_mask) - - -/* =========================================================================== - * Insert string str in the dictionary and set match_head to the previous head - * of the hash chain (the most recent string with same hash key). Return - * the previous length of the hash chain. - * If this file is compiled with -DFASTEST, the compression level is forced - * to 1, and no hash chains are maintained. - * IN assertion: all calls to to INSERT_STRING are made with consecutive - * input characters and the first MIN_MATCH bytes of str are valid - * (except for the last MIN_MATCH-1 bytes of the input file). - */ -#ifdef FASTEST -#define INSERT_STRING(s, str, match_head) \ - (UPDATE_HASH(s, s->ins_h, s->window[(str) + (MIN_MATCH-1)]), \ - match_head = s->head[s->ins_h], \ - s->head[s->ins_h] = (Pos)(str)) -#else -#define INSERT_STRING(s, str, match_head) \ - (UPDATE_HASH(s, s->ins_h, s->window[(str) + (MIN_MATCH-1)]), \ - match_head = s->prev[(str) & s->w_mask] = s->head[s->ins_h], \ - s->head[s->ins_h] = (Pos)(str)) -#endif - -/* =========================================================================== - * Initialize the hash table (avoiding 64K overflow for 16 bit systems). - * prev[] will be initialized on the fly. - */ -#define CLEAR_HASH(s) \ - s->head[s->hash_size-1] = NIL; \ - zmemzero((Bytef *)s->head, (unsigned)(s->hash_size-1)*sizeof(*s->head)); - -/* ========================================================================= */ -int ZEXPORT deflateInit_(strm, level, version, stream_size) - z_streamp strm; - int level; - const char *version; - int stream_size; -{ - return deflateInit2_(strm, level, Z_DEFLATED, MAX_WBITS, DEF_MEM_LEVEL, - Z_DEFAULT_STRATEGY, version, stream_size); - /* To do: ignore strm->next_in if we use it as window */ -} - -/* ========================================================================= */ -int ZEXPORT deflateInit2_(strm, level, method, windowBits, memLevel, strategy, - version, stream_size) - z_streamp strm; - int level; - int method; - int windowBits; - int memLevel; - int strategy; - const char *version; - int stream_size; -{ - deflate_state *s; - int wrap = 1; - static const char my_version[] = ZLIB_VERSION; - - ushf *overlay; - /* We overlay pending_buf and d_buf+l_buf. This works since the average - * output size for (length,distance) codes is <= 24 bits. - */ - - if (version == Z_NULL || version[0] != my_version[0] || - stream_size != sizeof(z_stream)) { - return Z_VERSION_ERROR; - } - if (strm == Z_NULL) return Z_STREAM_ERROR; - - strm->msg = Z_NULL; - if (strm->zalloc == (alloc_func)0) { -#ifdef Z_SOLO - return Z_STREAM_ERROR; -#else - strm->zalloc = zcalloc; - strm->opaque = (voidpf)0; -#endif - } - if (strm->zfree == (free_func)0) -#ifdef Z_SOLO - return Z_STREAM_ERROR; -#else - strm->zfree = zcfree; -#endif - -#ifdef FASTEST - if (level != 0) level = 1; -#else - if (level == Z_DEFAULT_COMPRESSION) level = 6; -#endif - - if (windowBits < 0) { /* suppress zlib wrapper */ - wrap = 0; - windowBits = -windowBits; - } -#ifdef GZIP - else if (windowBits > 15) { - wrap = 2; /* write gzip wrapper instead */ - windowBits -= 16; - } -#endif - if (memLevel < 1 || memLevel > MAX_MEM_LEVEL || method != Z_DEFLATED || - windowBits < 8 || windowBits > 15 || level < 0 || level > 9 || - strategy < 0 || strategy > Z_FIXED) { - return Z_STREAM_ERROR; - } - if (windowBits == 8) windowBits = 9; /* until 256-byte window bug fixed */ - s = (deflate_state *) ZALLOC(strm, 1, sizeof(deflate_state)); - if (s == Z_NULL) return Z_MEM_ERROR; - strm->state = (struct internal_state FAR *)s; - s->strm = strm; - - s->wrap = wrap; - s->gzhead = Z_NULL; - s->w_bits = windowBits; - s->w_size = 1 << s->w_bits; - s->w_mask = s->w_size - 1; - - s->hash_bits = memLevel + 7; - s->hash_size = 1 << s->hash_bits; - s->hash_mask = s->hash_size - 1; - s->hash_shift = ((s->hash_bits+MIN_MATCH-1)/MIN_MATCH); - - s->window = (Bytef *) ZALLOC(strm, s->w_size, 2*sizeof(Byte)); - s->prev = (Posf *) ZALLOC(strm, s->w_size, sizeof(Pos)); - s->head = (Posf *) ZALLOC(strm, s->hash_size, sizeof(Pos)); - - s->high_water = 0; /* nothing written to s->window yet */ - - s->lit_bufsize = 1 << (memLevel + 6); /* 16K elements by default */ - - overlay = (ushf *) ZALLOC(strm, s->lit_bufsize, sizeof(ush)+2); - s->pending_buf = (uchf *) overlay; - s->pending_buf_size = (ulg)s->lit_bufsize * (sizeof(ush)+2L); - - if (s->window == Z_NULL || s->prev == Z_NULL || s->head == Z_NULL || - s->pending_buf == Z_NULL) { - s->status = FINISH_STATE; - strm->msg = ERR_MSG(Z_MEM_ERROR); - deflateEnd (strm); - return Z_MEM_ERROR; - } - s->d_buf = overlay + s->lit_bufsize/sizeof(ush); - s->l_buf = s->pending_buf + (1+sizeof(ush))*s->lit_bufsize; - - s->level = level; - s->strategy = strategy; - s->method = (Byte)method; - - return deflateReset(strm); -} - -/* ========================================================================= */ -int ZEXPORT deflateSetDictionary (strm, dictionary, dictLength) - z_streamp strm; - const Bytef *dictionary; - uInt dictLength; -{ - deflate_state *s; - uInt str, n; - int wrap; - unsigned avail; - z_const unsigned char *next; - - if (strm == Z_NULL || strm->state == Z_NULL || dictionary == Z_NULL) - return Z_STREAM_ERROR; - s = strm->state; - wrap = s->wrap; - if (wrap == 2 || (wrap == 1 && s->status != INIT_STATE) || s->lookahead) - return Z_STREAM_ERROR; - - /* when using zlib wrappers, compute Adler-32 for provided dictionary */ - if (wrap == 1) - strm->adler = adler32(strm->adler, dictionary, dictLength); - s->wrap = 0; /* avoid computing Adler-32 in read_buf */ - - /* if dictionary would fill window, just replace the history */ - if (dictLength >= s->w_size) { - if (wrap == 0) { /* already empty otherwise */ - CLEAR_HASH(s); - s->strstart = 0; - s->block_start = 0L; - s->insert = 0; - } - dictionary += dictLength - s->w_size; /* use the tail */ - dictLength = s->w_size; - } - - /* insert dictionary into window and hash */ - avail = strm->avail_in; - next = strm->next_in; - strm->avail_in = dictLength; - strm->next_in = (z_const Bytef *)dictionary; - fill_window(s); - while (s->lookahead >= MIN_MATCH) { - str = s->strstart; - n = s->lookahead - (MIN_MATCH-1); - do { - UPDATE_HASH(s, s->ins_h, s->window[str + MIN_MATCH-1]); -#ifndef FASTEST - s->prev[str & s->w_mask] = s->head[s->ins_h]; -#endif - s->head[s->ins_h] = (Pos)str; - str++; - } while (--n); - s->strstart = str; - s->lookahead = MIN_MATCH-1; - fill_window(s); - } - s->strstart += s->lookahead; - s->block_start = (long)s->strstart; - s->insert = s->lookahead; - s->lookahead = 0; - s->match_length = s->prev_length = MIN_MATCH-1; - s->match_available = 0; - strm->next_in = next; - strm->avail_in = avail; - s->wrap = wrap; - return Z_OK; -} - -/* ========================================================================= */ -int ZEXPORT deflateResetKeep (strm) - z_streamp strm; -{ - deflate_state *s; - - if (strm == Z_NULL || strm->state == Z_NULL || - strm->zalloc == (alloc_func)0 || strm->zfree == (free_func)0) { - return Z_STREAM_ERROR; - } - - strm->total_in = strm->total_out = 0; - strm->msg = Z_NULL; /* use zfree if we ever allocate msg dynamically */ - strm->data_type = Z_UNKNOWN; - - s = (deflate_state *)strm->state; - s->pending = 0; - s->pending_out = s->pending_buf; - - if (s->wrap < 0) { - s->wrap = -s->wrap; /* was made negative by deflate(..., Z_FINISH); */ - } - s->status = s->wrap ? INIT_STATE : BUSY_STATE; - strm->adler = -#ifdef GZIP - s->wrap == 2 ? crc32(0L, Z_NULL, 0) : -#endif - adler32(0L, Z_NULL, 0); - s->last_flush = Z_NO_FLUSH; - - _tr_init(s); - - return Z_OK; -} - -/* ========================================================================= */ -int ZEXPORT deflateReset (strm) - z_streamp strm; -{ - int ret; - - ret = deflateResetKeep(strm); - if (ret == Z_OK) - lm_init(strm->state); - return ret; -} - -/* ========================================================================= */ -int ZEXPORT deflateSetHeader (strm, head) - z_streamp strm; - gz_headerp head; -{ - if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; - if (strm->state->wrap != 2) return Z_STREAM_ERROR; - strm->state->gzhead = head; - return Z_OK; -} - -/* ========================================================================= */ -int ZEXPORT deflatePending (strm, pending, bits) - unsigned *pending; - int *bits; - z_streamp strm; -{ - if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; - if (pending != Z_NULL) - *pending = strm->state->pending; - if (bits != Z_NULL) - *bits = strm->state->bi_valid; - return Z_OK; -} - -/* ========================================================================= */ -int ZEXPORT deflatePrime (strm, bits, value) - z_streamp strm; - int bits; - int value; -{ - deflate_state *s; - int put; - - if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; - s = strm->state; - if ((Bytef *)(s->d_buf) < s->pending_out + ((Buf_size + 7) >> 3)) - return Z_BUF_ERROR; - do { - put = Buf_size - s->bi_valid; - if (put > bits) - put = bits; - s->bi_buf |= (ush)((value & ((1 << put) - 1)) << s->bi_valid); - s->bi_valid += put; - _tr_flush_bits(s); - value >>= put; - bits -= put; - } while (bits); - return Z_OK; -} - -/* ========================================================================= */ -int ZEXPORT deflateParams(strm, level, strategy) - z_streamp strm; - int level; - int strategy; -{ - deflate_state *s; - compress_func func; - int err = Z_OK; - - if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; - s = strm->state; - -#ifdef FASTEST - if (level != 0) level = 1; -#else - if (level == Z_DEFAULT_COMPRESSION) level = 6; -#endif - if (level < 0 || level > 9 || strategy < 0 || strategy > Z_FIXED) { - return Z_STREAM_ERROR; - } - func = configuration_table[s->level].func; - - if ((strategy != s->strategy || func != configuration_table[level].func) && - strm->total_in != 0) { - /* Flush the last buffer: */ - err = deflate(strm, Z_BLOCK); - if (err == Z_BUF_ERROR && s->pending == 0) - err = Z_OK; - } - if (s->level != level) { - s->level = level; - s->max_lazy_match = configuration_table[level].max_lazy; - s->good_match = configuration_table[level].good_length; - s->nice_match = configuration_table[level].nice_length; - s->max_chain_length = configuration_table[level].max_chain; - } - s->strategy = strategy; - return err; -} - -/* ========================================================================= */ -int ZEXPORT deflateTune(strm, good_length, max_lazy, nice_length, max_chain) - z_streamp strm; - int good_length; - int max_lazy; - int nice_length; - int max_chain; -{ - deflate_state *s; - - if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; - s = strm->state; - s->good_match = good_length; - s->max_lazy_match = max_lazy; - s->nice_match = nice_length; - s->max_chain_length = max_chain; - return Z_OK; -} - -/* ========================================================================= - * For the default windowBits of 15 and memLevel of 8, this function returns - * a close to exact, as well as small, upper bound on the compressed size. - * They are coded as constants here for a reason--if the #define's are - * changed, then this function needs to be changed as well. The return - * value for 15 and 8 only works for those exact settings. - * - * For any setting other than those defaults for windowBits and memLevel, - * the value returned is a conservative worst case for the maximum expansion - * resulting from using fixed blocks instead of stored blocks, which deflate - * can emit on compressed data for some combinations of the parameters. - * - * This function could be more sophisticated to provide closer upper bounds for - * every combination of windowBits and memLevel. But even the conservative - * upper bound of about 14% expansion does not seem onerous for output buffer - * allocation. - */ -uLong ZEXPORT deflateBound(strm, sourceLen) - z_streamp strm; - uLong sourceLen; -{ - deflate_state *s; - uLong complen, wraplen; - Bytef *str; - - /* conservative upper bound for compressed data */ - complen = sourceLen + - ((sourceLen + 7) >> 3) + ((sourceLen + 63) >> 6) + 5; - - /* if can't get parameters, return conservative bound plus zlib wrapper */ - if (strm == Z_NULL || strm->state == Z_NULL) - return complen + 6; - - /* compute wrapper length */ - s = strm->state; - switch (s->wrap) { - case 0: /* raw deflate */ - wraplen = 0; - break; - case 1: /* zlib wrapper */ - wraplen = 6 + (s->strstart ? 4 : 0); - break; - case 2: /* gzip wrapper */ - wraplen = 18; - if (s->gzhead != Z_NULL) { /* user-supplied gzip header */ - if (s->gzhead->extra != Z_NULL) - wraplen += 2 + s->gzhead->extra_len; - str = s->gzhead->name; - if (str != Z_NULL) - do { - wraplen++; - } while (*str++); - str = s->gzhead->comment; - if (str != Z_NULL) - do { - wraplen++; - } while (*str++); - if (s->gzhead->hcrc) - wraplen += 2; - } - break; - default: /* for compiler happiness */ - wraplen = 6; - } - - /* if not default parameters, return conservative bound */ - if (s->w_bits != 15 || s->hash_bits != 8 + 7) - return complen + wraplen; - - /* default settings: return tight bound for that case */ - return sourceLen + (sourceLen >> 12) + (sourceLen >> 14) + - (sourceLen >> 25) + 13 - 6 + wraplen; -} - -/* ========================================================================= - * Put a short in the pending buffer. The 16-bit value is put in MSB order. - * IN assertion: the stream state is correct and there is enough room in - * pending_buf. - */ -local void putShortMSB (s, b) - deflate_state *s; - uInt b; -{ - put_byte(s, (Byte)(b >> 8)); - put_byte(s, (Byte)(b & 0xff)); -} - -/* ========================================================================= - * Flush as much pending output as possible. All deflate() output goes - * through this function so some applications may wish to modify it - * to avoid allocating a large strm->next_out buffer and copying into it. - * (See also read_buf()). - */ -local void flush_pending(strm) - z_streamp strm; -{ - unsigned len; - deflate_state *s = strm->state; - - _tr_flush_bits(s); - len = s->pending; - if (len > strm->avail_out) len = strm->avail_out; - if (len == 0) return; - - zmemcpy(strm->next_out, s->pending_out, len); - strm->next_out += len; - s->pending_out += len; - strm->total_out += len; - strm->avail_out -= len; - s->pending -= len; - if (s->pending == 0) { - s->pending_out = s->pending_buf; - } -} - -/* ========================================================================= */ -int ZEXPORT deflate (strm, flush) - z_streamp strm; - int flush; -{ - int old_flush; /* value of flush param for previous deflate call */ - deflate_state *s; - - if (strm == Z_NULL || strm->state == Z_NULL || - flush > Z_BLOCK || flush < 0) { - return Z_STREAM_ERROR; - } - s = strm->state; - - if (strm->next_out == Z_NULL || - (strm->next_in == Z_NULL && strm->avail_in != 0) || - (s->status == FINISH_STATE && flush != Z_FINISH)) { - ERR_RETURN(strm, Z_STREAM_ERROR); - } - if (strm->avail_out == 0) ERR_RETURN(strm, Z_BUF_ERROR); - - s->strm = strm; /* just in case */ - old_flush = s->last_flush; - s->last_flush = flush; - - /* Write the header */ - if (s->status == INIT_STATE) { -#ifdef GZIP - if (s->wrap == 2) { - strm->adler = crc32(0L, Z_NULL, 0); - put_byte(s, 31); - put_byte(s, 139); - put_byte(s, 8); - if (s->gzhead == Z_NULL) { - put_byte(s, 0); - put_byte(s, 0); - put_byte(s, 0); - put_byte(s, 0); - put_byte(s, 0); - put_byte(s, s->level == 9 ? 2 : - (s->strategy >= Z_HUFFMAN_ONLY || s->level < 2 ? - 4 : 0)); - put_byte(s, OS_CODE); - s->status = BUSY_STATE; - } - else { - put_byte(s, (s->gzhead->text ? 1 : 0) + - (s->gzhead->hcrc ? 2 : 0) + - (s->gzhead->extra == Z_NULL ? 0 : 4) + - (s->gzhead->name == Z_NULL ? 0 : 8) + - (s->gzhead->comment == Z_NULL ? 0 : 16) - ); - put_byte(s, (Byte)(s->gzhead->time & 0xff)); - put_byte(s, (Byte)((s->gzhead->time >> 8) & 0xff)); - put_byte(s, (Byte)((s->gzhead->time >> 16) & 0xff)); - put_byte(s, (Byte)((s->gzhead->time >> 24) & 0xff)); - put_byte(s, s->level == 9 ? 2 : - (s->strategy >= Z_HUFFMAN_ONLY || s->level < 2 ? - 4 : 0)); - put_byte(s, s->gzhead->os & 0xff); - if (s->gzhead->extra != Z_NULL) { - put_byte(s, s->gzhead->extra_len & 0xff); - put_byte(s, (s->gzhead->extra_len >> 8) & 0xff); - } - if (s->gzhead->hcrc) - strm->adler = crc32(strm->adler, s->pending_buf, - s->pending); - s->gzindex = 0; - s->status = EXTRA_STATE; - } - } - else -#endif - { - uInt header = (Z_DEFLATED + ((s->w_bits-8)<<4)) << 8; - uInt level_flags; - - if (s->strategy >= Z_HUFFMAN_ONLY || s->level < 2) - level_flags = 0; - else if (s->level < 6) - level_flags = 1; - else if (s->level == 6) - level_flags = 2; - else - level_flags = 3; - header |= (level_flags << 6); - if (s->strstart != 0) header |= PRESET_DICT; - header += 31 - (header % 31); - - s->status = BUSY_STATE; - putShortMSB(s, header); - - /* Save the adler32 of the preset dictionary: */ - if (s->strstart != 0) { - putShortMSB(s, (uInt)(strm->adler >> 16)); - putShortMSB(s, (uInt)(strm->adler & 0xffff)); - } - strm->adler = adler32(0L, Z_NULL, 0); - } - } -#ifdef GZIP - if (s->status == EXTRA_STATE) { - if (s->gzhead->extra != Z_NULL) { - uInt beg = s->pending; /* start of bytes to update crc */ - - while (s->gzindex < (s->gzhead->extra_len & 0xffff)) { - if (s->pending == s->pending_buf_size) { - if (s->gzhead->hcrc && s->pending > beg) - strm->adler = crc32(strm->adler, s->pending_buf + beg, - s->pending - beg); - flush_pending(strm); - beg = s->pending; - if (s->pending == s->pending_buf_size) - break; - } - put_byte(s, s->gzhead->extra[s->gzindex]); - s->gzindex++; - } - if (s->gzhead->hcrc && s->pending > beg) - strm->adler = crc32(strm->adler, s->pending_buf + beg, - s->pending - beg); - if (s->gzindex == s->gzhead->extra_len) { - s->gzindex = 0; - s->status = NAME_STATE; - } - } - else - s->status = NAME_STATE; - } - if (s->status == NAME_STATE) { - if (s->gzhead->name != Z_NULL) { - uInt beg = s->pending; /* start of bytes to update crc */ - int val; - - do { - if (s->pending == s->pending_buf_size) { - if (s->gzhead->hcrc && s->pending > beg) - strm->adler = crc32(strm->adler, s->pending_buf + beg, - s->pending - beg); - flush_pending(strm); - beg = s->pending; - if (s->pending == s->pending_buf_size) { - val = 1; - break; - } - } - val = s->gzhead->name[s->gzindex++]; - put_byte(s, val); - } while (val != 0); - if (s->gzhead->hcrc && s->pending > beg) - strm->adler = crc32(strm->adler, s->pending_buf + beg, - s->pending - beg); - if (val == 0) { - s->gzindex = 0; - s->status = COMMENT_STATE; - } - } - else - s->status = COMMENT_STATE; - } - if (s->status == COMMENT_STATE) { - if (s->gzhead->comment != Z_NULL) { - uInt beg = s->pending; /* start of bytes to update crc */ - int val; - - do { - if (s->pending == s->pending_buf_size) { - if (s->gzhead->hcrc && s->pending > beg) - strm->adler = crc32(strm->adler, s->pending_buf + beg, - s->pending - beg); - flush_pending(strm); - beg = s->pending; - if (s->pending == s->pending_buf_size) { - val = 1; - break; - } - } - val = s->gzhead->comment[s->gzindex++]; - put_byte(s, val); - } while (val != 0); - if (s->gzhead->hcrc && s->pending > beg) - strm->adler = crc32(strm->adler, s->pending_buf + beg, - s->pending - beg); - if (val == 0) - s->status = HCRC_STATE; - } - else - s->status = HCRC_STATE; - } - if (s->status == HCRC_STATE) { - if (s->gzhead->hcrc) { - if (s->pending + 2 > s->pending_buf_size) - flush_pending(strm); - if (s->pending + 2 <= s->pending_buf_size) { - put_byte(s, (Byte)(strm->adler & 0xff)); - put_byte(s, (Byte)((strm->adler >> 8) & 0xff)); - strm->adler = crc32(0L, Z_NULL, 0); - s->status = BUSY_STATE; - } - } - else - s->status = BUSY_STATE; - } -#endif - - /* Flush as much pending output as possible */ - if (s->pending != 0) { - flush_pending(strm); - if (strm->avail_out == 0) { - /* Since avail_out is 0, deflate will be called again with - * more output space, but possibly with both pending and - * avail_in equal to zero. There won't be anything to do, - * but this is not an error situation so make sure we - * return OK instead of BUF_ERROR at next call of deflate: - */ - s->last_flush = -1; - return Z_OK; - } - - /* Make sure there is something to do and avoid duplicate consecutive - * flushes. For repeated and useless calls with Z_FINISH, we keep - * returning Z_STREAM_END instead of Z_BUF_ERROR. - */ - } else if (strm->avail_in == 0 && RANK(flush) <= RANK(old_flush) && - flush != Z_FINISH) { - ERR_RETURN(strm, Z_BUF_ERROR); - } - - /* User must not provide more input after the first FINISH: */ - if (s->status == FINISH_STATE && strm->avail_in != 0) { - ERR_RETURN(strm, Z_BUF_ERROR); - } - - /* Start a new block or continue the current one. - */ - if (strm->avail_in != 0 || s->lookahead != 0 || - (flush != Z_NO_FLUSH && s->status != FINISH_STATE)) { - block_state bstate; - - bstate = s->strategy == Z_HUFFMAN_ONLY ? deflate_huff(s, flush) : - (s->strategy == Z_RLE ? deflate_rle(s, flush) : - (*(configuration_table[s->level].func))(s, flush)); - - if (bstate == finish_started || bstate == finish_done) { - s->status = FINISH_STATE; - } - if (bstate == need_more || bstate == finish_started) { - if (strm->avail_out == 0) { - s->last_flush = -1; /* avoid BUF_ERROR next call, see above */ - } - return Z_OK; - /* If flush != Z_NO_FLUSH && avail_out == 0, the next call - * of deflate should use the same flush parameter to make sure - * that the flush is complete. So we don't have to output an - * empty block here, this will be done at next call. This also - * ensures that for a very small output buffer, we emit at most - * one empty block. - */ - } - if (bstate == block_done) { - if (flush == Z_PARTIAL_FLUSH) { - _tr_align(s); - } else if (flush != Z_BLOCK) { /* FULL_FLUSH or SYNC_FLUSH */ - _tr_stored_block(s, (char*)0, 0L, 0); - /* For a full flush, this empty block will be recognized - * as a special marker by inflate_sync(). - */ - if (flush == Z_FULL_FLUSH) { - CLEAR_HASH(s); /* forget history */ - if (s->lookahead == 0) { - s->strstart = 0; - s->block_start = 0L; - s->insert = 0; - } - } - } - flush_pending(strm); - if (strm->avail_out == 0) { - s->last_flush = -1; /* avoid BUF_ERROR at next call, see above */ - return Z_OK; - } - } - } - Assert(strm->avail_out > 0, "bug2"); - - if (flush != Z_FINISH) return Z_OK; - if (s->wrap <= 0) return Z_STREAM_END; - - /* Write the trailer */ -#ifdef GZIP - if (s->wrap == 2) { - put_byte(s, (Byte)(strm->adler & 0xff)); - put_byte(s, (Byte)((strm->adler >> 8) & 0xff)); - put_byte(s, (Byte)((strm->adler >> 16) & 0xff)); - put_byte(s, (Byte)((strm->adler >> 24) & 0xff)); - put_byte(s, (Byte)(strm->total_in & 0xff)); - put_byte(s, (Byte)((strm->total_in >> 8) & 0xff)); - put_byte(s, (Byte)((strm->total_in >> 16) & 0xff)); - put_byte(s, (Byte)((strm->total_in >> 24) & 0xff)); - } - else -#endif - { - putShortMSB(s, (uInt)(strm->adler >> 16)); - putShortMSB(s, (uInt)(strm->adler & 0xffff)); - } - flush_pending(strm); - /* If avail_out is zero, the application will call deflate again - * to flush the rest. - */ - if (s->wrap > 0) s->wrap = -s->wrap; /* write the trailer only once! */ - return s->pending != 0 ? Z_OK : Z_STREAM_END; -} - -/* ========================================================================= */ -int ZEXPORT deflateEnd (strm) - z_streamp strm; -{ - int status; - - if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; - - status = strm->state->status; - if (status != INIT_STATE && - status != EXTRA_STATE && - status != NAME_STATE && - status != COMMENT_STATE && - status != HCRC_STATE && - status != BUSY_STATE && - status != FINISH_STATE) { - return Z_STREAM_ERROR; - } - - /* Deallocate in reverse order of allocations: */ - TRY_FREE(strm, strm->state->pending_buf); - TRY_FREE(strm, strm->state->head); - TRY_FREE(strm, strm->state->prev); - TRY_FREE(strm, strm->state->window); - - ZFREE(strm, strm->state); - strm->state = Z_NULL; - - return status == BUSY_STATE ? Z_DATA_ERROR : Z_OK; -} - -/* ========================================================================= - * Copy the source state to the destination state. - * To simplify the source, this is not supported for 16-bit MSDOS (which - * doesn't have enough memory anyway to duplicate compression states). - */ -int ZEXPORT deflateCopy (dest, source) - z_streamp dest; - z_streamp source; -{ -#ifdef MAXSEG_64K - return Z_STREAM_ERROR; -#else - deflate_state *ds; - deflate_state *ss; - ushf *overlay; - - - if (source == Z_NULL || dest == Z_NULL || source->state == Z_NULL) { - return Z_STREAM_ERROR; - } - - ss = source->state; - - zmemcpy((voidpf)dest, (voidpf)source, sizeof(z_stream)); - - ds = (deflate_state *) ZALLOC(dest, 1, sizeof(deflate_state)); - if (ds == Z_NULL) return Z_MEM_ERROR; - dest->state = (struct internal_state FAR *) ds; - zmemcpy((voidpf)ds, (voidpf)ss, sizeof(deflate_state)); - ds->strm = dest; - - ds->window = (Bytef *) ZALLOC(dest, ds->w_size, 2*sizeof(Byte)); - ds->prev = (Posf *) ZALLOC(dest, ds->w_size, sizeof(Pos)); - ds->head = (Posf *) ZALLOC(dest, ds->hash_size, sizeof(Pos)); - overlay = (ushf *) ZALLOC(dest, ds->lit_bufsize, sizeof(ush)+2); - ds->pending_buf = (uchf *) overlay; - - if (ds->window == Z_NULL || ds->prev == Z_NULL || ds->head == Z_NULL || - ds->pending_buf == Z_NULL) { - deflateEnd (dest); - return Z_MEM_ERROR; - } - /* following zmemcpy do not work for 16-bit MSDOS */ - zmemcpy(ds->window, ss->window, ds->w_size * 2 * sizeof(Byte)); - zmemcpy((voidpf)ds->prev, (voidpf)ss->prev, ds->w_size * sizeof(Pos)); - zmemcpy((voidpf)ds->head, (voidpf)ss->head, ds->hash_size * sizeof(Pos)); - zmemcpy(ds->pending_buf, ss->pending_buf, (uInt)ds->pending_buf_size); - - ds->pending_out = ds->pending_buf + (ss->pending_out - ss->pending_buf); - ds->d_buf = overlay + ds->lit_bufsize/sizeof(ush); - ds->l_buf = ds->pending_buf + (1+sizeof(ush))*ds->lit_bufsize; - - ds->l_desc.dyn_tree = ds->dyn_ltree; - ds->d_desc.dyn_tree = ds->dyn_dtree; - ds->bl_desc.dyn_tree = ds->bl_tree; - - return Z_OK; -#endif /* MAXSEG_64K */ -} - -/* =========================================================================== - * Read a new buffer from the current input stream, update the adler32 - * and total number of bytes read. All deflate() input goes through - * this function so some applications may wish to modify it to avoid - * allocating a large strm->next_in buffer and copying from it. - * (See also flush_pending()). - */ -local int read_buf(strm, buf, size) - z_streamp strm; - Bytef *buf; - unsigned size; -{ - unsigned len = strm->avail_in; - - if (len > size) len = size; - if (len == 0) return 0; - - strm->avail_in -= len; - - zmemcpy(buf, strm->next_in, len); - if (strm->state->wrap == 1) { - strm->adler = adler32(strm->adler, buf, len); - } -#ifdef GZIP - else if (strm->state->wrap == 2) { - strm->adler = crc32(strm->adler, buf, len); - } -#endif - strm->next_in += len; - strm->total_in += len; - - return (int)len; -} - -/* =========================================================================== - * Initialize the "longest match" routines for a new zlib stream - */ -local void lm_init (s) - deflate_state *s; -{ - s->window_size = (ulg)2L*s->w_size; - - CLEAR_HASH(s); - - /* Set the default configuration parameters: - */ - s->max_lazy_match = configuration_table[s->level].max_lazy; - s->good_match = configuration_table[s->level].good_length; - s->nice_match = configuration_table[s->level].nice_length; - s->max_chain_length = configuration_table[s->level].max_chain; - - s->strstart = 0; - s->block_start = 0L; - s->lookahead = 0; - s->insert = 0; - s->match_length = s->prev_length = MIN_MATCH-1; - s->match_available = 0; - s->ins_h = 0; -#ifndef FASTEST -#ifdef ASMV - match_init(); /* initialize the asm code */ -#endif -#endif -} - -#ifndef FASTEST -/* =========================================================================== - * Set match_start to the longest match starting at the given string and - * return its length. Matches shorter or equal to prev_length are discarded, - * in which case the result is equal to prev_length and match_start is - * garbage. - * IN assertions: cur_match is the head of the hash chain for the current - * string (strstart) and its distance is <= MAX_DIST, and prev_length >= 1 - * OUT assertion: the match length is not greater than s->lookahead. - */ -#ifndef ASMV -/* For 80x86 and 680x0, an optimized version will be provided in match.asm or - * match.S. The code will be functionally equivalent. - */ -local uInt longest_match(s, cur_match) - deflate_state *s; - IPos cur_match; /* current match */ -{ - unsigned chain_length = s->max_chain_length;/* max hash chain length */ - register Bytef *scan = s->window + s->strstart; /* current string */ - register Bytef *match; /* matched string */ - register int len; /* length of current match */ - int best_len = s->prev_length; /* best match length so far */ - int nice_match = s->nice_match; /* stop if match long enough */ - IPos limit = s->strstart > (IPos)MAX_DIST(s) ? - s->strstart - (IPos)MAX_DIST(s) : NIL; - /* Stop when cur_match becomes <= limit. To simplify the code, - * we prevent matches with the string of window index 0. - */ - Posf *prev = s->prev; - uInt wmask = s->w_mask; - -#ifdef UNALIGNED_OK - /* Compare two bytes at a time. Note: this is not always beneficial. - * Try with and without -DUNALIGNED_OK to check. - */ - register Bytef *strend = s->window + s->strstart + MAX_MATCH - 1; - register ush scan_start = *(ushf*)scan; - register ush scan_end = *(ushf*)(scan+best_len-1); -#else - register Bytef *strend = s->window + s->strstart + MAX_MATCH; - register Byte scan_end1 = scan[best_len-1]; - register Byte scan_end = scan[best_len]; -#endif - - /* The code is optimized for HASH_BITS >= 8 and MAX_MATCH-2 multiple of 16. - * It is easy to get rid of this optimization if necessary. - */ - Assert(s->hash_bits >= 8 && MAX_MATCH == 258, "Code too clever"); - - /* Do not waste too much time if we already have a good match: */ - if (s->prev_length >= s->good_match) { - chain_length >>= 2; - } - /* Do not look for matches beyond the end of the input. This is necessary - * to make deflate deterministic. - */ - if ((uInt)nice_match > s->lookahead) nice_match = s->lookahead; - - Assert((ulg)s->strstart <= s->window_size-MIN_LOOKAHEAD, "need lookahead"); - - do { - Assert(cur_match < s->strstart, "no future"); - match = s->window + cur_match; - - /* Skip to next match if the match length cannot increase - * or if the match length is less than 2. Note that the checks below - * for insufficient lookahead only occur occasionally for performance - * reasons. Therefore uninitialized memory will be accessed, and - * conditional jumps will be made that depend on those values. - * However the length of the match is limited to the lookahead, so - * the output of deflate is not affected by the uninitialized values. - */ -#if (defined(UNALIGNED_OK) && MAX_MATCH == 258) - /* This code assumes sizeof(unsigned short) == 2. Do not use - * UNALIGNED_OK if your compiler uses a different size. - */ - if (*(ushf*)(match+best_len-1) != scan_end || - *(ushf*)match != scan_start) continue; - - /* It is not necessary to compare scan[2] and match[2] since they are - * always equal when the other bytes match, given that the hash keys - * are equal and that HASH_BITS >= 8. Compare 2 bytes at a time at - * strstart+3, +5, ... up to strstart+257. We check for insufficient - * lookahead only every 4th comparison; the 128th check will be made - * at strstart+257. If MAX_MATCH-2 is not a multiple of 8, it is - * necessary to put more guard bytes at the end of the window, or - * to check more often for insufficient lookahead. - */ - Assert(scan[2] == match[2], "scan[2]?"); - scan++, match++; - do { - } while (*(ushf*)(scan+=2) == *(ushf*)(match+=2) && - *(ushf*)(scan+=2) == *(ushf*)(match+=2) && - *(ushf*)(scan+=2) == *(ushf*)(match+=2) && - *(ushf*)(scan+=2) == *(ushf*)(match+=2) && - scan < strend); - /* The funny "do {}" generates better code on most compilers */ - - /* Here, scan <= window+strstart+257 */ - Assert(scan <= s->window+(unsigned)(s->window_size-1), "wild scan"); - if (*scan == *match) scan++; - - len = (MAX_MATCH - 1) - (int)(strend-scan); - scan = strend - (MAX_MATCH-1); - -#else /* UNALIGNED_OK */ - - if (match[best_len] != scan_end || - match[best_len-1] != scan_end1 || - *match != *scan || - *++match != scan[1]) continue; - - /* The check at best_len-1 can be removed because it will be made - * again later. (This heuristic is not always a win.) - * It is not necessary to compare scan[2] and match[2] since they - * are always equal when the other bytes match, given that - * the hash keys are equal and that HASH_BITS >= 8. - */ - scan += 2, match++; - Assert(*scan == *match, "match[2]?"); - - /* We check for insufficient lookahead only every 8th comparison; - * the 256th check will be made at strstart+258. - */ - do { - } while (*++scan == *++match && *++scan == *++match && - *++scan == *++match && *++scan == *++match && - *++scan == *++match && *++scan == *++match && - *++scan == *++match && *++scan == *++match && - scan < strend); - - Assert(scan <= s->window+(unsigned)(s->window_size-1), "wild scan"); - - len = MAX_MATCH - (int)(strend - scan); - scan = strend - MAX_MATCH; - -#endif /* UNALIGNED_OK */ - - if (len > best_len) { - s->match_start = cur_match; - best_len = len; - if (len >= nice_match) break; -#ifdef UNALIGNED_OK - scan_end = *(ushf*)(scan+best_len-1); -#else - scan_end1 = scan[best_len-1]; - scan_end = scan[best_len]; -#endif - } - } while ((cur_match = prev[cur_match & wmask]) > limit - && --chain_length != 0); - - if ((uInt)best_len <= s->lookahead) return (uInt)best_len; - return s->lookahead; -} -#endif /* ASMV */ - -#else /* FASTEST */ - -/* --------------------------------------------------------------------------- - * Optimized version for FASTEST only - */ -local uInt longest_match(s, cur_match) - deflate_state *s; - IPos cur_match; /* current match */ -{ - register Bytef *scan = s->window + s->strstart; /* current string */ - register Bytef *match; /* matched string */ - register int len; /* length of current match */ - register Bytef *strend = s->window + s->strstart + MAX_MATCH; - - /* The code is optimized for HASH_BITS >= 8 and MAX_MATCH-2 multiple of 16. - * It is easy to get rid of this optimization if necessary. - */ - Assert(s->hash_bits >= 8 && MAX_MATCH == 258, "Code too clever"); - - Assert((ulg)s->strstart <= s->window_size-MIN_LOOKAHEAD, "need lookahead"); - - Assert(cur_match < s->strstart, "no future"); - - match = s->window + cur_match; - - /* Return failure if the match length is less than 2: - */ - if (match[0] != scan[0] || match[1] != scan[1]) return MIN_MATCH-1; - - /* The check at best_len-1 can be removed because it will be made - * again later. (This heuristic is not always a win.) - * It is not necessary to compare scan[2] and match[2] since they - * are always equal when the other bytes match, given that - * the hash keys are equal and that HASH_BITS >= 8. - */ - scan += 2, match += 2; - Assert(*scan == *match, "match[2]?"); - - /* We check for insufficient lookahead only every 8th comparison; - * the 256th check will be made at strstart+258. - */ - do { - } while (*++scan == *++match && *++scan == *++match && - *++scan == *++match && *++scan == *++match && - *++scan == *++match && *++scan == *++match && - *++scan == *++match && *++scan == *++match && - scan < strend); - - Assert(scan <= s->window+(unsigned)(s->window_size-1), "wild scan"); - - len = MAX_MATCH - (int)(strend - scan); - - if (len < MIN_MATCH) return MIN_MATCH - 1; - - s->match_start = cur_match; - return (uInt)len <= s->lookahead ? (uInt)len : s->lookahead; -} - -#endif /* FASTEST */ - -#ifdef DEBUG -/* =========================================================================== - * Check that the match at match_start is indeed a match. - */ -local void check_match(s, start, match, length) - deflate_state *s; - IPos start, match; - int length; -{ - /* check that the match is indeed a match */ - if (zmemcmp(s->window + match, - s->window + start, length) != EQUAL) { - fprintf(stderr, " start %u, match %u, length %d\n", - start, match, length); - do { - fprintf(stderr, "%c%c", s->window[match++], s->window[start++]); - } while (--length != 0); - z_error("invalid match"); - } - if (z_verbose > 1) { - fprintf(stderr,"\\[%d,%d]", start-match, length); - do { putc(s->window[start++], stderr); } while (--length != 0); - } -} -#else -# define check_match(s, start, match, length) -#endif /* DEBUG */ - -/* =========================================================================== - * Fill the window when the lookahead becomes insufficient. - * Updates strstart and lookahead. - * - * IN assertion: lookahead < MIN_LOOKAHEAD - * OUT assertions: strstart <= window_size-MIN_LOOKAHEAD - * At least one byte has been read, or avail_in == 0; reads are - * performed for at least two bytes (required for the zip translate_eol - * option -- not supported here). - */ -local void fill_window(s) - deflate_state *s; -{ - register unsigned n, m; - register Posf *p; - unsigned more; /* Amount of free space at the end of the window. */ - uInt wsize = s->w_size; - - Assert(s->lookahead < MIN_LOOKAHEAD, "already enough lookahead"); - - do { - more = (unsigned)(s->window_size -(ulg)s->lookahead -(ulg)s->strstart); - - /* Deal with !@#$% 64K limit: */ - if (sizeof(int) <= 2) { - if (more == 0 && s->strstart == 0 && s->lookahead == 0) { - more = wsize; - - } else if (more == (unsigned)(-1)) { - /* Very unlikely, but possible on 16 bit machine if - * strstart == 0 && lookahead == 1 (input done a byte at time) - */ - more--; - } - } - - /* If the window is almost full and there is insufficient lookahead, - * move the upper half to the lower one to make room in the upper half. - */ - if (s->strstart >= wsize+MAX_DIST(s)) { - - zmemcpy(s->window, s->window+wsize, (unsigned)wsize); - s->match_start -= wsize; - s->strstart -= wsize; /* we now have strstart >= MAX_DIST */ - s->block_start -= (long) wsize; - - /* Slide the hash table (could be avoided with 32 bit values - at the expense of memory usage). We slide even when level == 0 - to keep the hash table consistent if we switch back to level > 0 - later. (Using level 0 permanently is not an optimal usage of - zlib, so we don't care about this pathological case.) - */ - n = s->hash_size; - p = &s->head[n]; - do { - m = *--p; - *p = (Pos)(m >= wsize ? m-wsize : NIL); - } while (--n); - - n = wsize; -#ifndef FASTEST - p = &s->prev[n]; - do { - m = *--p; - *p = (Pos)(m >= wsize ? m-wsize : NIL); - /* If n is not on any hash chain, prev[n] is garbage but - * its value will never be used. - */ - } while (--n); -#endif - more += wsize; - } - if (s->strm->avail_in == 0) break; - - /* If there was no sliding: - * strstart <= WSIZE+MAX_DIST-1 && lookahead <= MIN_LOOKAHEAD - 1 && - * more == window_size - lookahead - strstart - * => more >= window_size - (MIN_LOOKAHEAD-1 + WSIZE + MAX_DIST-1) - * => more >= window_size - 2*WSIZE + 2 - * In the BIG_MEM or MMAP case (not yet supported), - * window_size == input_size + MIN_LOOKAHEAD && - * strstart + s->lookahead <= input_size => more >= MIN_LOOKAHEAD. - * Otherwise, window_size == 2*WSIZE so more >= 2. - * If there was sliding, more >= WSIZE. So in all cases, more >= 2. - */ - Assert(more >= 2, "more < 2"); - - n = read_buf(s->strm, s->window + s->strstart + s->lookahead, more); - s->lookahead += n; - - /* Initialize the hash value now that we have some input: */ - if (s->lookahead + s->insert >= MIN_MATCH) { - uInt str = s->strstart - s->insert; - s->ins_h = s->window[str]; - UPDATE_HASH(s, s->ins_h, s->window[str + 1]); -#if MIN_MATCH != 3 - Call UPDATE_HASH() MIN_MATCH-3 more times -#endif - while (s->insert) { - UPDATE_HASH(s, s->ins_h, s->window[str + MIN_MATCH-1]); -#ifndef FASTEST - s->prev[str & s->w_mask] = s->head[s->ins_h]; -#endif - s->head[s->ins_h] = (Pos)str; - str++; - s->insert--; - if (s->lookahead + s->insert < MIN_MATCH) - break; - } - } - /* If the whole input has less than MIN_MATCH bytes, ins_h is garbage, - * but this is not important since only literal bytes will be emitted. - */ - - } while (s->lookahead < MIN_LOOKAHEAD && s->strm->avail_in != 0); - - /* If the WIN_INIT bytes after the end of the current data have never been - * written, then zero those bytes in order to avoid memory check reports of - * the use of uninitialized (or uninitialised as Julian writes) bytes by - * the longest match routines. Update the high water mark for the next - * time through here. WIN_INIT is set to MAX_MATCH since the longest match - * routines allow scanning to strstart + MAX_MATCH, ignoring lookahead. - */ - if (s->high_water < s->window_size) { - ulg curr = s->strstart + (ulg)(s->lookahead); - ulg init; - - if (s->high_water < curr) { - /* Previous high water mark below current data -- zero WIN_INIT - * bytes or up to end of window, whichever is less. - */ - init = s->window_size - curr; - if (init > WIN_INIT) - init = WIN_INIT; - zmemzero(s->window + curr, (unsigned)init); - s->high_water = curr + init; - } - else if (s->high_water < (ulg)curr + WIN_INIT) { - /* High water mark at or above current data, but below current data - * plus WIN_INIT -- zero out to current data plus WIN_INIT, or up - * to end of window, whichever is less. - */ - init = (ulg)curr + WIN_INIT - s->high_water; - if (init > s->window_size - s->high_water) - init = s->window_size - s->high_water; - zmemzero(s->window + s->high_water, (unsigned)init); - s->high_water += init; - } - } - - Assert((ulg)s->strstart <= s->window_size - MIN_LOOKAHEAD, - "not enough room for search"); -} - -/* =========================================================================== - * Flush the current block, with given end-of-file flag. - * IN assertion: strstart is set to the end of the current match. - */ -#define FLUSH_BLOCK_ONLY(s, last) { \ - _tr_flush_block(s, (s->block_start >= 0L ? \ - (charf *)&s->window[(unsigned)s->block_start] : \ - (charf *)Z_NULL), \ - (ulg)((long)s->strstart - s->block_start), \ - (last)); \ - s->block_start = s->strstart; \ - flush_pending(s->strm); \ - Tracev((stderr,"[FLUSH]")); \ -} - -/* Same but force premature exit if necessary. */ -#define FLUSH_BLOCK(s, last) { \ - FLUSH_BLOCK_ONLY(s, last); \ - if (s->strm->avail_out == 0) return (last) ? finish_started : need_more; \ -} - -/* =========================================================================== - * Copy without compression as much as possible from the input stream, return - * the current block state. - * This function does not insert new strings in the dictionary since - * uncompressible data is probably not useful. This function is used - * only for the level=0 compression option. - * NOTE: this function should be optimized to avoid extra copying from - * window to pending_buf. - */ -local block_state deflate_stored(s, flush) - deflate_state *s; - int flush; -{ - /* Stored blocks are limited to 0xffff bytes, pending_buf is limited - * to pending_buf_size, and each stored block has a 5 byte header: - */ - ulg max_block_size = 0xffff; - ulg max_start; - - if (max_block_size > s->pending_buf_size - 5) { - max_block_size = s->pending_buf_size - 5; - } - - /* Copy as much as possible from input to output: */ - for (;;) { - /* Fill the window as much as possible: */ - if (s->lookahead <= 1) { - - Assert(s->strstart < s->w_size+MAX_DIST(s) || - s->block_start >= (long)s->w_size, "slide too late"); - - fill_window(s); - if (s->lookahead == 0 && flush == Z_NO_FLUSH) return need_more; - - if (s->lookahead == 0) break; /* flush the current block */ - } - Assert(s->block_start >= 0L, "block gone"); - - s->strstart += s->lookahead; - s->lookahead = 0; - - /* Emit a stored block if pending_buf will be full: */ - max_start = s->block_start + max_block_size; - if (s->strstart == 0 || (ulg)s->strstart >= max_start) { - /* strstart == 0 is possible when wraparound on 16-bit machine */ - s->lookahead = (uInt)(s->strstart - max_start); - s->strstart = (uInt)max_start; - FLUSH_BLOCK(s, 0); - } - /* Flush if we may have to slide, otherwise block_start may become - * negative and the data will be gone: - */ - if (s->strstart - (uInt)s->block_start >= MAX_DIST(s)) { - FLUSH_BLOCK(s, 0); - } - } - s->insert = 0; - if (flush == Z_FINISH) { - FLUSH_BLOCK(s, 1); - return finish_done; - } - if ((long)s->strstart > s->block_start) - FLUSH_BLOCK(s, 0); - return block_done; -} - -/* =========================================================================== - * Compress as much as possible from the input stream, return the current - * block state. - * This function does not perform lazy evaluation of matches and inserts - * new strings in the dictionary only for unmatched strings or for short - * matches. It is used only for the fast compression options. - */ -local block_state deflate_fast(s, flush) - deflate_state *s; - int flush; -{ - IPos hash_head; /* head of the hash chain */ - int bflush; /* set if current block must be flushed */ - - for (;;) { - /* Make sure that we always have enough lookahead, except - * at the end of the input file. We need MAX_MATCH bytes - * for the next match, plus MIN_MATCH bytes to insert the - * string following the next match. - */ - if (s->lookahead < MIN_LOOKAHEAD) { - fill_window(s); - if (s->lookahead < MIN_LOOKAHEAD && flush == Z_NO_FLUSH) { - return need_more; - } - if (s->lookahead == 0) break; /* flush the current block */ - } - - /* Insert the string window[strstart .. strstart+2] in the - * dictionary, and set hash_head to the head of the hash chain: - */ - hash_head = NIL; - if (s->lookahead >= MIN_MATCH) { - INSERT_STRING(s, s->strstart, hash_head); - } - - /* Find the longest match, discarding those <= prev_length. - * At this point we have always match_length < MIN_MATCH - */ - if (hash_head != NIL && s->strstart - hash_head <= MAX_DIST(s)) { - /* To simplify the code, we prevent matches with the string - * of window index 0 (in particular we have to avoid a match - * of the string with itself at the start of the input file). - */ - s->match_length = longest_match (s, hash_head); - /* longest_match() sets match_start */ - } - if (s->match_length >= MIN_MATCH) { - check_match(s, s->strstart, s->match_start, s->match_length); - - _tr_tally_dist(s, s->strstart - s->match_start, - s->match_length - MIN_MATCH, bflush); - - s->lookahead -= s->match_length; - - /* Insert new strings in the hash table only if the match length - * is not too large. This saves time but degrades compression. - */ -#ifndef FASTEST - if (s->match_length <= s->max_insert_length && - s->lookahead >= MIN_MATCH) { - s->match_length--; /* string at strstart already in table */ - do { - s->strstart++; - INSERT_STRING(s, s->strstart, hash_head); - /* strstart never exceeds WSIZE-MAX_MATCH, so there are - * always MIN_MATCH bytes ahead. - */ - } while (--s->match_length != 0); - s->strstart++; - } else -#endif - { - s->strstart += s->match_length; - s->match_length = 0; - s->ins_h = s->window[s->strstart]; - UPDATE_HASH(s, s->ins_h, s->window[s->strstart+1]); -#if MIN_MATCH != 3 - Call UPDATE_HASH() MIN_MATCH-3 more times -#endif - /* If lookahead < MIN_MATCH, ins_h is garbage, but it does not - * matter since it will be recomputed at next deflate call. - */ - } - } else { - /* No match, output a literal byte */ - Tracevv((stderr,"%c", s->window[s->strstart])); - _tr_tally_lit (s, s->window[s->strstart], bflush); - s->lookahead--; - s->strstart++; - } - if (bflush) FLUSH_BLOCK(s, 0); - } - s->insert = s->strstart < MIN_MATCH-1 ? s->strstart : MIN_MATCH-1; - if (flush == Z_FINISH) { - FLUSH_BLOCK(s, 1); - return finish_done; - } - if (s->last_lit) - FLUSH_BLOCK(s, 0); - return block_done; -} - -#ifndef FASTEST -/* =========================================================================== - * Same as above, but achieves better compression. We use a lazy - * evaluation for matches: a match is finally adopted only if there is - * no better match at the next window position. - */ -local block_state deflate_slow(s, flush) - deflate_state *s; - int flush; -{ - IPos hash_head; /* head of hash chain */ - int bflush; /* set if current block must be flushed */ - - /* Process the input block. */ - for (;;) { - /* Make sure that we always have enough lookahead, except - * at the end of the input file. We need MAX_MATCH bytes - * for the next match, plus MIN_MATCH bytes to insert the - * string following the next match. - */ - if (s->lookahead < MIN_LOOKAHEAD) { - fill_window(s); - if (s->lookahead < MIN_LOOKAHEAD && flush == Z_NO_FLUSH) { - return need_more; - } - if (s->lookahead == 0) break; /* flush the current block */ - } - - /* Insert the string window[strstart .. strstart+2] in the - * dictionary, and set hash_head to the head of the hash chain: - */ - hash_head = NIL; - if (s->lookahead >= MIN_MATCH) { - INSERT_STRING(s, s->strstart, hash_head); - } - - /* Find the longest match, discarding those <= prev_length. - */ - s->prev_length = s->match_length, s->prev_match = s->match_start; - s->match_length = MIN_MATCH-1; - - if (hash_head != NIL && s->prev_length < s->max_lazy_match && - s->strstart - hash_head <= MAX_DIST(s)) { - /* To simplify the code, we prevent matches with the string - * of window index 0 (in particular we have to avoid a match - * of the string with itself at the start of the input file). - */ - s->match_length = longest_match (s, hash_head); - /* longest_match() sets match_start */ - - if (s->match_length <= 5 && (s->strategy == Z_FILTERED -#if TOO_FAR <= 32767 - || (s->match_length == MIN_MATCH && - s->strstart - s->match_start > TOO_FAR) -#endif - )) { - - /* If prev_match is also MIN_MATCH, match_start is garbage - * but we will ignore the current match anyway. - */ - s->match_length = MIN_MATCH-1; - } - } - /* If there was a match at the previous step and the current - * match is not better, output the previous match: - */ - if (s->prev_length >= MIN_MATCH && s->match_length <= s->prev_length) { - uInt max_insert = s->strstart + s->lookahead - MIN_MATCH; - /* Do not insert strings in hash table beyond this. */ - - check_match(s, s->strstart-1, s->prev_match, s->prev_length); - - _tr_tally_dist(s, s->strstart -1 - s->prev_match, - s->prev_length - MIN_MATCH, bflush); - - /* Insert in hash table all strings up to the end of the match. - * strstart-1 and strstart are already inserted. If there is not - * enough lookahead, the last two strings are not inserted in - * the hash table. - */ - s->lookahead -= s->prev_length-1; - s->prev_length -= 2; - do { - if (++s->strstart <= max_insert) { - INSERT_STRING(s, s->strstart, hash_head); - } - } while (--s->prev_length != 0); - s->match_available = 0; - s->match_length = MIN_MATCH-1; - s->strstart++; - - if (bflush) FLUSH_BLOCK(s, 0); - - } else if (s->match_available) { - /* If there was no match at the previous position, output a - * single literal. If there was a match but the current match - * is longer, truncate the previous match to a single literal. - */ - Tracevv((stderr,"%c", s->window[s->strstart-1])); - _tr_tally_lit(s, s->window[s->strstart-1], bflush); - if (bflush) { - FLUSH_BLOCK_ONLY(s, 0); - } - s->strstart++; - s->lookahead--; - if (s->strm->avail_out == 0) return need_more; - } else { - /* There is no previous match to compare with, wait for - * the next step to decide. - */ - s->match_available = 1; - s->strstart++; - s->lookahead--; - } - } - Assert (flush != Z_NO_FLUSH, "no flush?"); - if (s->match_available) { - Tracevv((stderr,"%c", s->window[s->strstart-1])); - _tr_tally_lit(s, s->window[s->strstart-1], bflush); - s->match_available = 0; - } - s->insert = s->strstart < MIN_MATCH-1 ? s->strstart : MIN_MATCH-1; - if (flush == Z_FINISH) { - FLUSH_BLOCK(s, 1); - return finish_done; - } - if (s->last_lit) - FLUSH_BLOCK(s, 0); - return block_done; -} -#endif /* FASTEST */ - -/* =========================================================================== - * For Z_RLE, simply look for runs of bytes, generate matches only of distance - * one. Do not maintain a hash table. (It will be regenerated if this run of - * deflate switches away from Z_RLE.) - */ -local block_state deflate_rle(s, flush) - deflate_state *s; - int flush; -{ - int bflush; /* set if current block must be flushed */ - uInt prev; /* byte at distance one to match */ - Bytef *scan, *strend; /* scan goes up to strend for length of run */ - - for (;;) { - /* Make sure that we always have enough lookahead, except - * at the end of the input file. We need MAX_MATCH bytes - * for the longest run, plus one for the unrolled loop. - */ - if (s->lookahead <= MAX_MATCH) { - fill_window(s); - if (s->lookahead <= MAX_MATCH && flush == Z_NO_FLUSH) { - return need_more; - } - if (s->lookahead == 0) break; /* flush the current block */ - } - - /* See how many times the previous byte repeats */ - s->match_length = 0; - if (s->lookahead >= MIN_MATCH && s->strstart > 0) { - scan = s->window + s->strstart - 1; - prev = *scan; - if (prev == *++scan && prev == *++scan && prev == *++scan) { - strend = s->window + s->strstart + MAX_MATCH; - do { - } while (prev == *++scan && prev == *++scan && - prev == *++scan && prev == *++scan && - prev == *++scan && prev == *++scan && - prev == *++scan && prev == *++scan && - scan < strend); - s->match_length = MAX_MATCH - (int)(strend - scan); - if (s->match_length > s->lookahead) - s->match_length = s->lookahead; - } - Assert(scan <= s->window+(uInt)(s->window_size-1), "wild scan"); - } - - /* Emit match if have run of MIN_MATCH or longer, else emit literal */ - if (s->match_length >= MIN_MATCH) { - check_match(s, s->strstart, s->strstart - 1, s->match_length); - - _tr_tally_dist(s, 1, s->match_length - MIN_MATCH, bflush); - - s->lookahead -= s->match_length; - s->strstart += s->match_length; - s->match_length = 0; - } else { - /* No match, output a literal byte */ - Tracevv((stderr,"%c", s->window[s->strstart])); - _tr_tally_lit (s, s->window[s->strstart], bflush); - s->lookahead--; - s->strstart++; - } - if (bflush) FLUSH_BLOCK(s, 0); - } - s->insert = 0; - if (flush == Z_FINISH) { - FLUSH_BLOCK(s, 1); - return finish_done; - } - if (s->last_lit) - FLUSH_BLOCK(s, 0); - return block_done; -} - -/* =========================================================================== - * For Z_HUFFMAN_ONLY, do not look for matches. Do not maintain a hash table. - * (It will be regenerated if this run of deflate switches away from Huffman.) - */ -local block_state deflate_huff(s, flush) - deflate_state *s; - int flush; -{ - int bflush; /* set if current block must be flushed */ - - for (;;) { - /* Make sure that we have a literal to write. */ - if (s->lookahead == 0) { - fill_window(s); - if (s->lookahead == 0) { - if (flush == Z_NO_FLUSH) - return need_more; - break; /* flush the current block */ - } - } - - /* Output a literal byte */ - s->match_length = 0; - Tracevv((stderr,"%c", s->window[s->strstart])); - _tr_tally_lit (s, s->window[s->strstart], bflush); - s->lookahead--; - s->strstart++; - if (bflush) FLUSH_BLOCK(s, 0); - } - s->insert = 0; - if (flush == Z_FINISH) { - FLUSH_BLOCK(s, 1); - return finish_done; - } - if (s->last_lit) - FLUSH_BLOCK(s, 0); - return block_done; -} diff --git a/src/utilfuns/zlib/deflate.h b/src/utilfuns/zlib/deflate.h deleted file mode 100644 index e1a7544..0000000 --- a/src/utilfuns/zlib/deflate.h +++ /dev/null @@ -1,346 +0,0 @@ -/* deflate.h -- internal compression state - * Copyright (C) 1995-2012 Jean-loup Gailly - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* WARNING: this file should *not* be used by applications. It is - part of the implementation of the compression library and is - subject to change. Applications should only use zlib.h. - */ - -/* @(#) $Id: deflate.h 2809 2013-06-10 06:24:27Z chrislit $ */ - -#ifndef DEFLATE_H -#define DEFLATE_H - -#include "zutil.h" - -/* define NO_GZIP when compiling if you want to disable gzip header and - trailer creation by deflate(). NO_GZIP would be used to avoid linking in - the crc code when it is not needed. For shared libraries, gzip encoding - should be left enabled. */ -#ifndef NO_GZIP -# define GZIP -#endif - -/* =========================================================================== - * Internal compression state. - */ - -#define LENGTH_CODES 29 -/* number of length codes, not counting the special END_BLOCK code */ - -#define LITERALS 256 -/* number of literal bytes 0..255 */ - -#define L_CODES (LITERALS+1+LENGTH_CODES) -/* number of Literal or Length codes, including the END_BLOCK code */ - -#define D_CODES 30 -/* number of distance codes */ - -#define BL_CODES 19 -/* number of codes used to transfer the bit lengths */ - -#define HEAP_SIZE (2*L_CODES+1) -/* maximum heap size */ - -#define MAX_BITS 15 -/* All codes must not exceed MAX_BITS bits */ - -#define Buf_size 16 -/* size of bit buffer in bi_buf */ - -#define INIT_STATE 42 -#define EXTRA_STATE 69 -#define NAME_STATE 73 -#define COMMENT_STATE 91 -#define HCRC_STATE 103 -#define BUSY_STATE 113 -#define FINISH_STATE 666 -/* Stream status */ - - -/* Data structure describing a single value and its code string. */ -typedef struct ct_data_s { - union { - ush freq; /* frequency count */ - ush code; /* bit string */ - } fc; - union { - ush dad; /* father node in Huffman tree */ - ush len; /* length of bit string */ - } dl; -} FAR ct_data; - -#define Freq fc.freq -#define Code fc.code -#define Dad dl.dad -#define Len dl.len - -typedef struct static_tree_desc_s static_tree_desc; - -typedef struct tree_desc_s { - ct_data *dyn_tree; /* the dynamic tree */ - int max_code; /* largest code with non zero frequency */ - static_tree_desc *stat_desc; /* the corresponding static tree */ -} FAR tree_desc; - -typedef ush Pos; -typedef Pos FAR Posf; -typedef unsigned IPos; - -/* A Pos is an index in the character window. We use short instead of int to - * save space in the various tables. IPos is used only for parameter passing. - */ - -typedef struct internal_state { - z_streamp strm; /* pointer back to this zlib stream */ - int status; /* as the name implies */ - Bytef *pending_buf; /* output still pending */ - ulg pending_buf_size; /* size of pending_buf */ - Bytef *pending_out; /* next pending byte to output to the stream */ - uInt pending; /* nb of bytes in the pending buffer */ - int wrap; /* bit 0 true for zlib, bit 1 true for gzip */ - gz_headerp gzhead; /* gzip header information to write */ - uInt gzindex; /* where in extra, name, or comment */ - Byte method; /* can only be DEFLATED */ - int last_flush; /* value of flush param for previous deflate call */ - - /* used by deflate.c: */ - - uInt w_size; /* LZ77 window size (32K by default) */ - uInt w_bits; /* log2(w_size) (8..16) */ - uInt w_mask; /* w_size - 1 */ - - Bytef *window; - /* Sliding window. Input bytes are read into the second half of the window, - * and move to the first half later to keep a dictionary of at least wSize - * bytes. With this organization, matches are limited to a distance of - * wSize-MAX_MATCH bytes, but this ensures that IO is always - * performed with a length multiple of the block size. Also, it limits - * the window size to 64K, which is quite useful on MSDOS. - * To do: use the user input buffer as sliding window. - */ - - ulg window_size; - /* Actual size of window: 2*wSize, except when the user input buffer - * is directly used as sliding window. - */ - - Posf *prev; - /* Link to older string with same hash index. To limit the size of this - * array to 64K, this link is maintained only for the last 32K strings. - * An index in this array is thus a window index modulo 32K. - */ - - Posf *head; /* Heads of the hash chains or NIL. */ - - uInt ins_h; /* hash index of string to be inserted */ - uInt hash_size; /* number of elements in hash table */ - uInt hash_bits; /* log2(hash_size) */ - uInt hash_mask; /* hash_size-1 */ - - uInt hash_shift; - /* Number of bits by which ins_h must be shifted at each input - * step. It must be such that after MIN_MATCH steps, the oldest - * byte no longer takes part in the hash key, that is: - * hash_shift * MIN_MATCH >= hash_bits - */ - - long block_start; - /* Window position at the beginning of the current output block. Gets - * negative when the window is moved backwards. - */ - - uInt match_length; /* length of best match */ - IPos prev_match; /* previous match */ - int match_available; /* set if previous match exists */ - uInt strstart; /* start of string to insert */ - uInt match_start; /* start of matching string */ - uInt lookahead; /* number of valid bytes ahead in window */ - - uInt prev_length; - /* Length of the best match at previous step. Matches not greater than this - * are discarded. This is used in the lazy match evaluation. - */ - - uInt max_chain_length; - /* To speed up deflation, hash chains are never searched beyond this - * length. A higher limit improves compression ratio but degrades the - * speed. - */ - - uInt max_lazy_match; - /* Attempt to find a better match only when the current match is strictly - * smaller than this value. This mechanism is used only for compression - * levels >= 4. - */ -# define max_insert_length max_lazy_match - /* Insert new strings in the hash table only if the match length is not - * greater than this length. This saves time but degrades compression. - * max_insert_length is used only for compression levels <= 3. - */ - - int level; /* compression level (1..9) */ - int strategy; /* favor or force Huffman coding*/ - - uInt good_match; - /* Use a faster search when the previous match is longer than this */ - - int nice_match; /* Stop searching when current match exceeds this */ - - /* used by trees.c: */ - /* Didn't use ct_data typedef below to suppress compiler warning */ - struct ct_data_s dyn_ltree[HEAP_SIZE]; /* literal and length tree */ - struct ct_data_s dyn_dtree[2*D_CODES+1]; /* distance tree */ - struct ct_data_s bl_tree[2*BL_CODES+1]; /* Huffman tree for bit lengths */ - - struct tree_desc_s l_desc; /* desc. for literal tree */ - struct tree_desc_s d_desc; /* desc. for distance tree */ - struct tree_desc_s bl_desc; /* desc. for bit length tree */ - - ush bl_count[MAX_BITS+1]; - /* number of codes at each bit length for an optimal tree */ - - int heap[2*L_CODES+1]; /* heap used to build the Huffman trees */ - int heap_len; /* number of elements in the heap */ - int heap_max; /* element of largest frequency */ - /* The sons of heap[n] are heap[2*n] and heap[2*n+1]. heap[0] is not used. - * The same heap array is used to build all trees. - */ - - uch depth[2*L_CODES+1]; - /* Depth of each subtree used as tie breaker for trees of equal frequency - */ - - uchf *l_buf; /* buffer for literals or lengths */ - - uInt lit_bufsize; - /* Size of match buffer for literals/lengths. There are 4 reasons for - * limiting lit_bufsize to 64K: - * - frequencies can be kept in 16 bit counters - * - if compression is not successful for the first block, all input - * data is still in the window so we can still emit a stored block even - * when input comes from standard input. (This can also be done for - * all blocks if lit_bufsize is not greater than 32K.) - * - if compression is not successful for a file smaller than 64K, we can - * even emit a stored file instead of a stored block (saving 5 bytes). - * This is applicable only for zip (not gzip or zlib). - * - creating new Huffman trees less frequently may not provide fast - * adaptation to changes in the input data statistics. (Take for - * example a binary file with poorly compressible code followed by - * a highly compressible string table.) Smaller buffer sizes give - * fast adaptation but have of course the overhead of transmitting - * trees more frequently. - * - I can't count above 4 - */ - - uInt last_lit; /* running index in l_buf */ - - ushf *d_buf; - /* Buffer for distances. To simplify the code, d_buf and l_buf have - * the same number of elements. To use different lengths, an extra flag - * array would be necessary. - */ - - ulg opt_len; /* bit length of current block with optimal trees */ - ulg static_len; /* bit length of current block with static trees */ - uInt matches; /* number of string matches in current block */ - uInt insert; /* bytes at end of window left to insert */ - -#ifdef DEBUG - ulg compressed_len; /* total bit length of compressed file mod 2^32 */ - ulg bits_sent; /* bit length of compressed data sent mod 2^32 */ -#endif - - ush bi_buf; - /* Output buffer. bits are inserted starting at the bottom (least - * significant bits). - */ - int bi_valid; - /* Number of valid bits in bi_buf. All bits above the last valid bit - * are always zero. - */ - - ulg high_water; - /* High water mark offset in window for initialized bytes -- bytes above - * this are set to zero in order to avoid memory check warnings when - * longest match routines access bytes past the input. This is then - * updated to the new high water mark. - */ - -} FAR deflate_state; - -/* Output a byte on the stream. - * IN assertion: there is enough room in pending_buf. - */ -#define put_byte(s, c) {s->pending_buf[s->pending++] = (c);} - - -#define MIN_LOOKAHEAD (MAX_MATCH+MIN_MATCH+1) -/* Minimum amount of lookahead, except at the end of the input file. - * See deflate.c for comments about the MIN_MATCH+1. - */ - -#define MAX_DIST(s) ((s)->w_size-MIN_LOOKAHEAD) -/* In order to simplify the code, particularly on 16 bit machines, match - * distances are limited to MAX_DIST instead of WSIZE. - */ - -#define WIN_INIT MAX_MATCH -/* Number of bytes after end of data in window to initialize in order to avoid - memory checker errors from longest match routines */ - - /* in trees.c */ -void ZLIB_INTERNAL _tr_init OF((deflate_state *s)); -int ZLIB_INTERNAL _tr_tally OF((deflate_state *s, unsigned dist, unsigned lc)); -void ZLIB_INTERNAL _tr_flush_block OF((deflate_state *s, charf *buf, - ulg stored_len, int last)); -void ZLIB_INTERNAL _tr_flush_bits OF((deflate_state *s)); -void ZLIB_INTERNAL _tr_align OF((deflate_state *s)); -void ZLIB_INTERNAL _tr_stored_block OF((deflate_state *s, charf *buf, - ulg stored_len, int last)); - -#define d_code(dist) \ - ((dist) < 256 ? _dist_code[dist] : _dist_code[256+((dist)>>7)]) -/* Mapping from a distance to a distance code. dist is the distance - 1 and - * must not have side effects. _dist_code[256] and _dist_code[257] are never - * used. - */ - -#ifndef DEBUG -/* Inline versions of _tr_tally for speed: */ - -#if defined(GEN_TREES_H) || !defined(STDC) - extern uch ZLIB_INTERNAL _length_code[]; - extern uch ZLIB_INTERNAL _dist_code[]; -#else - extern const uch ZLIB_INTERNAL _length_code[]; - extern const uch ZLIB_INTERNAL _dist_code[]; -#endif - -# define _tr_tally_lit(s, c, flush) \ - { uch cc = (c); \ - s->d_buf[s->last_lit] = 0; \ - s->l_buf[s->last_lit++] = cc; \ - s->dyn_ltree[cc].Freq++; \ - flush = (s->last_lit == s->lit_bufsize-1); \ - } -# define _tr_tally_dist(s, distance, length, flush) \ - { uch len = (length); \ - ush dist = (distance); \ - s->d_buf[s->last_lit] = dist; \ - s->l_buf[s->last_lit++] = len; \ - dist--; \ - s->dyn_ltree[_length_code[len]+LITERALS+1].Freq++; \ - s->dyn_dtree[d_code(dist)].Freq++; \ - flush = (s->last_lit == s->lit_bufsize-1); \ - } -#else -# define _tr_tally_lit(s, c, flush) flush = _tr_tally(s, 0, c) -# define _tr_tally_dist(s, distance, length, flush) \ - flush = _tr_tally(s, distance, length) -#endif - -#endif /* DEFLATE_H */ diff --git a/src/utilfuns/zlib/gzclose.c b/src/utilfuns/zlib/gzclose.c deleted file mode 100644 index caeb99a..0000000 --- a/src/utilfuns/zlib/gzclose.c +++ /dev/null @@ -1,25 +0,0 @@ -/* gzclose.c -- zlib gzclose() function - * Copyright (C) 2004, 2010 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -#include "gzguts.h" - -/* gzclose() is in a separate file so that it is linked in only if it is used. - That way the other gzclose functions can be used instead to avoid linking in - unneeded compression or decompression routines. */ -int ZEXPORT gzclose(file) - gzFile file; -{ -#ifndef NO_GZCOMPRESS - gz_statep state; - - if (file == NULL) - return Z_STREAM_ERROR; - state = (gz_statep)file; - - return state->mode == GZ_READ ? gzclose_r(file) : gzclose_w(file); -#else - return gzclose_r(file); -#endif -} diff --git a/src/utilfuns/zlib/gzguts.h b/src/utilfuns/zlib/gzguts.h deleted file mode 100644 index d87659d..0000000 --- a/src/utilfuns/zlib/gzguts.h +++ /dev/null @@ -1,209 +0,0 @@ -/* gzguts.h -- zlib internal header definitions for gz* operations - * Copyright (C) 2004, 2005, 2010, 2011, 2012, 2013 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -#ifdef _LARGEFILE64_SOURCE -# ifndef _LARGEFILE_SOURCE -# define _LARGEFILE_SOURCE 1 -# endif -# ifdef _FILE_OFFSET_BITS -# undef _FILE_OFFSET_BITS -# endif -#endif - -#ifdef HAVE_HIDDEN -# define ZLIB_INTERNAL __attribute__((visibility ("hidden"))) -#else -# define ZLIB_INTERNAL -#endif - -#include <stdio.h> -#include "zlib.h" -#ifdef STDC -# include <string.h> -# include <stdlib.h> -# include <limits.h> -#endif -#include <fcntl.h> - -#ifdef _WIN32 -# include <stddef.h> -#endif - -#if defined(__TURBOC__) || defined(_MSC_VER) || defined(_WIN32) -# include <io.h> -#endif - -#ifdef WINAPI_FAMILY -# define open _open -# define read _read -# define write _write -# define close _close -#endif - -#ifdef NO_DEFLATE /* for compatibility with old definition */ -# define NO_GZCOMPRESS -#endif - -#if defined(STDC99) || (defined(__TURBOC__) && __TURBOC__ >= 0x550) -# ifndef HAVE_VSNPRINTF -# define HAVE_VSNPRINTF -# endif -#endif - -#if defined(__CYGWIN__) -# ifndef HAVE_VSNPRINTF -# define HAVE_VSNPRINTF -# endif -#endif - -#if defined(MSDOS) && defined(__BORLANDC__) && (BORLANDC > 0x410) -# ifndef HAVE_VSNPRINTF -# define HAVE_VSNPRINTF -# endif -#endif - -#ifndef HAVE_VSNPRINTF -# ifdef MSDOS -/* vsnprintf may exist on some MS-DOS compilers (DJGPP?), - but for now we just assume it doesn't. */ -# define NO_vsnprintf -# endif -# ifdef __TURBOC__ -# define NO_vsnprintf -# endif -# ifdef WIN32 -/* In Win32, vsnprintf is available as the "non-ANSI" _vsnprintf. */ -# if !defined(vsnprintf) && !defined(NO_vsnprintf) -# if !defined(_MSC_VER) || ( defined(_MSC_VER) && _MSC_VER < 1500 ) -# define vsnprintf _vsnprintf -# endif -# endif -# endif -# ifdef __SASC -# define NO_vsnprintf -# endif -# ifdef VMS -# define NO_vsnprintf -# endif -# ifdef __OS400__ -# define NO_vsnprintf -# endif -# ifdef __MVS__ -# define NO_vsnprintf -# endif -#endif - -/* unlike snprintf (which is required in C99, yet still not supported by - Microsoft more than a decade later!), _snprintf does not guarantee null - termination of the result -- however this is only used in gzlib.c where - the result is assured to fit in the space provided */ -#ifdef _MSC_VER -# define snprintf _snprintf -#endif - -#ifndef local -# define local static -#endif -/* compile with -Dlocal if your debugger can't find static symbols */ - -/* gz* functions always use library allocation functions */ -#ifndef STDC - extern voidp malloc OF((uInt size)); - extern void free OF((voidpf ptr)); -#endif - -/* get errno and strerror definition */ -#if defined UNDER_CE -# include <windows.h> -# define zstrerror() gz_strwinerror((DWORD)GetLastError()) -#else -# ifndef NO_STRERROR -# include <errno.h> -# define zstrerror() strerror(errno) -# else -# define zstrerror() "stdio error (consult errno)" -# endif -#endif - -/* provide prototypes for these when building zlib without LFS */ -#if !defined(_LARGEFILE64_SOURCE) || _LFS64_LARGEFILE-0 == 0 - ZEXTERN gzFile ZEXPORT gzopen64 OF((const char *, const char *)); - ZEXTERN z_off64_t ZEXPORT gzseek64 OF((gzFile, z_off64_t, int)); - ZEXTERN z_off64_t ZEXPORT gztell64 OF((gzFile)); - ZEXTERN z_off64_t ZEXPORT gzoffset64 OF((gzFile)); -#endif - -/* default memLevel */ -#if MAX_MEM_LEVEL >= 8 -# define DEF_MEM_LEVEL 8 -#else -# define DEF_MEM_LEVEL MAX_MEM_LEVEL -#endif - -/* default i/o buffer size -- double this for output when reading (this and - twice this must be able to fit in an unsigned type) */ -#define GZBUFSIZE 8192 - -/* gzip modes, also provide a little integrity check on the passed structure */ -#define GZ_NONE 0 -#define GZ_READ 7247 -#define GZ_WRITE 31153 -#define GZ_APPEND 1 /* mode set to GZ_WRITE after the file is opened */ - -/* values for gz_state how */ -#define LOOK 0 /* look for a gzip header */ -#define COPY 1 /* copy input directly */ -#define GZIP 2 /* decompress a gzip stream */ - -/* internal gzip file state data structure */ -typedef struct { - /* exposed contents for gzgetc() macro */ - struct gzFile_s x; /* "x" for exposed */ - /* x.have: number of bytes available at x.next */ - /* x.next: next output data to deliver or write */ - /* x.pos: current position in uncompressed data */ - /* used for both reading and writing */ - int mode; /* see gzip modes above */ - int fd; /* file descriptor */ - char *path; /* path or fd for error messages */ - unsigned size; /* buffer size, zero if not allocated yet */ - unsigned want; /* requested buffer size, default is GZBUFSIZE */ - unsigned char *in; /* input buffer */ - unsigned char *out; /* output buffer (double-sized when reading) */ - int direct; /* 0 if processing gzip, 1 if transparent */ - /* just for reading */ - int how; /* 0: get header, 1: copy, 2: decompress */ - z_off64_t start; /* where the gzip data started, for rewinding */ - int eof; /* true if end of input file reached */ - int past; /* true if read requested past end */ - /* just for writing */ - int level; /* compression level */ - int strategy; /* compression strategy */ - /* seek request */ - z_off64_t skip; /* amount to skip (already rewound if backwards) */ - int seek; /* true if seek request pending */ - /* error information */ - int err; /* error code */ - char *msg; /* error message */ - /* zlib inflate or deflate stream */ - z_stream strm; /* stream structure in-place (not a pointer) */ -} gz_state; -typedef gz_state FAR *gz_statep; - -/* shared functions */ -void ZLIB_INTERNAL gz_error OF((gz_statep, int, const char *)); -#if defined UNDER_CE -char ZLIB_INTERNAL *gz_strwinerror OF((DWORD error)); -#endif - -/* GT_OFF(x), where x is an unsigned value, is true if x > maximum z_off64_t - value -- needed when comparing unsigned to z_off64_t, which is signed - (possible z_off64_t types off_t, off64_t, and long are all signed) */ -#ifdef INT_MAX -# define GT_OFF(x) (sizeof(int) == sizeof(z_off64_t) && (x) > INT_MAX) -#else -unsigned ZLIB_INTERNAL gz_intmax OF((void)); -# define GT_OFF(x) (sizeof(int) == sizeof(z_off64_t) && (x) > gz_intmax()) -#endif diff --git a/src/utilfuns/zlib/gzlib.c b/src/utilfuns/zlib/gzlib.c deleted file mode 100644 index a089787..0000000 --- a/src/utilfuns/zlib/gzlib.c +++ /dev/null @@ -1,642 +0,0 @@ -/* gzlib.c -- zlib functions common to reading and writing gzip files - * Copyright (C) 2004, 2010, 2011, 2012, 2013 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -#include "gzguts.h" - -#if defined(_WIN32) && !defined(__BORLANDC__) -# define LSEEK _lseeki64 -#else -#if defined(_LARGEFILE64_SOURCE) && _LFS64_LARGEFILE-0 -# define LSEEK lseek64 -#else -# define LSEEK lseek -#endif -#endif - -#if !defined(__GNUC__) && !defined(_WIN32_WCE) -#include <io.h> -#include <direct.h> -#else -#include <unistd.h> -#endif - - -/* Local functions */ -local void gz_reset OF((gz_statep)); -local gzFile gz_open OF((const void *, int, const char *)); - -#if defined UNDER_CE - -/* Map the Windows error number in ERROR to a locale-dependent error message - string and return a pointer to it. Typically, the values for ERROR come - from GetLastError. - - The string pointed to shall not be modified by the application, but may be - overwritten by a subsequent call to gz_strwinerror - - The gz_strwinerror function does not change the current setting of - GetLastError. */ -char ZLIB_INTERNAL *gz_strwinerror (error) - DWORD error; -{ - static char buf[1024]; - - wchar_t *msgbuf; - DWORD lasterr = GetLastError(); - DWORD chars = FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM - | FORMAT_MESSAGE_ALLOCATE_BUFFER, - NULL, - error, - 0, /* Default language */ - (LPVOID)&msgbuf, - 0, - NULL); - if (chars != 0) { - /* If there is an \r\n appended, zap it. */ - if (chars >= 2 - && msgbuf[chars - 2] == '\r' && msgbuf[chars - 1] == '\n') { - chars -= 2; - msgbuf[chars] = 0; - } - - if (chars > sizeof (buf) - 1) { - chars = sizeof (buf) - 1; - msgbuf[chars] = 0; - } - - wcstombs(buf, msgbuf, chars + 1); - LocalFree(msgbuf); - } - else { - sprintf(buf, "unknown win32 error (%ld)", error); - } - - SetLastError(lasterr); - return buf; -} - -#endif /* UNDER_CE */ - -/* Reset gzip file state */ -local void gz_reset(state) - gz_statep state; -{ - state->x.have = 0; /* no output data available */ - if (state->mode == GZ_READ) { /* for reading ... */ - state->eof = 0; /* not at end of file */ - state->past = 0; /* have not read past end yet */ - state->how = LOOK; /* look for gzip header */ - } - state->seek = 0; /* no seek request pending */ - gz_error(state, Z_OK, NULL); /* clear error */ - state->x.pos = 0; /* no uncompressed data yet */ - state->strm.avail_in = 0; /* no input data yet */ -} - -/* Open a gzip file either by name or file descriptor. */ -local gzFile gz_open(path, fd, mode) - const void *path; - int fd; - const char *mode; -{ - gz_statep state; - size_t len; - int oflag; -#ifdef O_CLOEXEC - int cloexec = 0; -#endif -#ifdef O_EXCL - int exclusive = 0; -#endif - - /* check input */ - if (path == NULL) - return NULL; - - /* allocate gzFile structure to return */ - state = (gz_statep)malloc(sizeof(gz_state)); - if (state == NULL) - return NULL; - state->size = 0; /* no buffers allocated yet */ - state->want = GZBUFSIZE; /* requested buffer size */ - state->msg = NULL; /* no error message yet */ - - /* interpret mode */ - state->mode = GZ_NONE; - state->level = Z_DEFAULT_COMPRESSION; - state->strategy = Z_DEFAULT_STRATEGY; - state->direct = 0; - while (*mode) { - if (*mode >= '0' && *mode <= '9') - state->level = *mode - '0'; - else - switch (*mode) { - case 'r': - state->mode = GZ_READ; - break; -#ifndef NO_GZCOMPRESS - case 'w': - state->mode = GZ_WRITE; - break; - case 'a': - state->mode = GZ_APPEND; - break; -#endif - case '+': /* can't read and write at the same time */ - free(state); - return NULL; - case 'b': /* ignore -- will request binary anyway */ - break; -#ifdef O_CLOEXEC - case 'e': - cloexec = 1; - break; -#endif -#ifdef O_EXCL - case 'x': - exclusive = 1; - break; -#endif - case 'f': - state->strategy = Z_FILTERED; - break; - case 'h': - state->strategy = Z_HUFFMAN_ONLY; - break; - case 'R': - state->strategy = Z_RLE; - break; - case 'F': - state->strategy = Z_FIXED; - break; - case 'T': - state->direct = 1; - break; - default: /* could consider as an error, but just ignore */ - ; - } - mode++; - } - - /* must provide an "r", "w", or "a" */ - if (state->mode == GZ_NONE) { - free(state); - return NULL; - } - - /* can't force transparent read */ - if (state->mode == GZ_READ) { - if (state->direct) { - free(state); - return NULL; - } - state->direct = 1; /* for empty file */ - } - - /* save the path name for error messages */ -#ifdef _WIN32 - if (fd == -2) { - len = wcstombs(NULL, path, 0); - if (len == (size_t)-1) - len = 0; - } - else -#endif - len = strlen((const char *)path); - state->path = (char *)malloc(len + 1); - if (state->path == NULL) { - free(state); - return NULL; - } -#ifdef _WIN32 - if (fd == -2) - if (len) - wcstombs(state->path, path, len + 1); - else - *(state->path) = 0; - else -#endif -#if !defined(NO_snprintf) && !defined(NO_vsnprintf) - snprintf(state->path, len + 1, "%s", (const char *)path); -#else - strcpy(state->path, path); -#endif - - /* compute the flags for open() */ - oflag = -#ifdef O_LARGEFILE - O_LARGEFILE | -#endif -#ifdef O_BINARY - O_BINARY | -#endif -#ifdef O_CLOEXEC - (cloexec ? O_CLOEXEC : 0) | -#endif - (state->mode == GZ_READ ? - O_RDONLY : - (O_WRONLY | O_CREAT | -#ifdef O_EXCL - (exclusive ? O_EXCL : 0) | -#endif - (state->mode == GZ_WRITE ? - O_TRUNC : - O_APPEND))); - - /* open the file with the appropriate flags (or just use fd) */ - state->fd = fd > -1 ? fd : ( -#ifdef _WIN32 - fd == -2 ? _wopen(path, oflag, 0666) : -#endif - open((const char *)path, oflag, 0666)); - if (state->fd == -1) { - free(state->path); - free(state); - return NULL; - } - if (state->mode == GZ_APPEND) - state->mode = GZ_WRITE; /* simplify later checks */ - - /* save the current position for rewinding (only if reading) */ - if (state->mode == GZ_READ) { - state->start = LSEEK(state->fd, 0, SEEK_CUR); - if (state->start == -1) state->start = 0; - } - - /* initialize stream */ - gz_reset(state); - - /* return stream */ - return (gzFile)state; -} - -/* -- see zlib.h -- */ -gzFile ZEXPORT gzopen(path, mode) - const char *path; - const char *mode; -{ - return gz_open(path, -1, mode); -} - -/* -- see zlib.h -- */ -gzFile ZEXPORT gzopen64(path, mode) - const char *path; - const char *mode; -{ - return gz_open(path, -1, mode); -} - -/* -- see zlib.h -- */ -gzFile ZEXPORT gzdopen(fd, mode) - int fd; - const char *mode; -{ - char *path; /* identifier for error messages */ - gzFile gz; - - if (fd == -1 || (path = (char *)malloc(7 + 3 * sizeof(int))) == NULL) - return NULL; -#if !defined(NO_snprintf) && !defined(NO_vsnprintf) - snprintf(path, 7 + 3 * sizeof(int), "<fd:%d>", fd); /* for debugging */ -#else - sprintf(path, "<fd:%d>", fd); /* for debugging */ -#endif - gz = gz_open(path, fd, mode); - free(path); - return gz; -} - -/* -- see zlib.h -- */ -#ifdef _WIN32 -gzFile ZEXPORT gzopen_w(path, mode) - const wchar_t *path; - const char *mode; -{ - return gz_open(path, -2, mode); -} -#endif - -/* -- see zlib.h -- */ -int ZEXPORT gzbuffer(file, size) - gzFile file; - unsigned size; -{ - gz_statep state; - - /* get internal structure and check integrity */ - if (file == NULL) - return -1; - state = (gz_statep)file; - if (state->mode != GZ_READ && state->mode != GZ_WRITE) - return -1; - - /* make sure we haven't already allocated memory */ - if (state->size != 0) - return -1; - - /* check and set requested size */ - if (size < 2) - size = 2; /* need two bytes to check magic header */ - state->want = size; - return 0; -} - -/* -- see zlib.h -- */ -int ZEXPORT gzrewind(file) - gzFile file; -{ - gz_statep state; - - /* get internal structure */ - if (file == NULL) - return -1; - state = (gz_statep)file; - - /* check that we're reading and that there's no error */ - if (state->mode != GZ_READ || - (state->err != Z_OK && state->err != Z_BUF_ERROR)) - return -1; - - /* back up and start over */ - if (LSEEK(state->fd, state->start, SEEK_SET) == -1) - return -1; - gz_reset(state); - return 0; -} - -/* -- see zlib.h -- */ -z_off64_t ZEXPORT gzseek64(file, offset, whence) - gzFile file; - z_off64_t offset; - int whence; -{ - unsigned n; - z_off64_t ret; - gz_statep state; - - /* get internal structure and check integrity */ - if (file == NULL) - return -1; - state = (gz_statep)file; - if (state->mode != GZ_READ && state->mode != GZ_WRITE) - return -1; - - /* check that there's no error */ - if (state->err != Z_OK && state->err != Z_BUF_ERROR) - return -1; - - /* can only seek from start or relative to current position */ - if (whence != SEEK_SET && whence != SEEK_CUR) - return -1; - - /* normalize offset to a SEEK_CUR specification */ - if (whence == SEEK_SET) - offset -= state->x.pos; - else if (state->seek) - offset += state->skip; - state->seek = 0; - - /* if within raw area while reading, just go there */ - if (state->mode == GZ_READ && state->how == COPY && - state->x.pos + offset >= 0) { - ret = LSEEK(state->fd, offset - state->x.have, SEEK_CUR); - if (ret == -1) - return -1; - state->x.have = 0; - state->eof = 0; - state->past = 0; - state->seek = 0; - gz_error(state, Z_OK, NULL); - state->strm.avail_in = 0; - state->x.pos += offset; - return state->x.pos; - } - - /* calculate skip amount, rewinding if needed for back seek when reading */ - if (offset < 0) { - if (state->mode != GZ_READ) /* writing -- can't go backwards */ - return -1; - offset += state->x.pos; - if (offset < 0) /* before start of file! */ - return -1; - if (gzrewind(file) == -1) /* rewind, then skip to offset */ - return -1; - } - - /* if reading, skip what's in output buffer (one less gzgetc() check) */ - if (state->mode == GZ_READ) { - n = GT_OFF(state->x.have) || (z_off64_t)state->x.have > offset ? - (unsigned)offset : state->x.have; - state->x.have -= n; - state->x.next += n; - state->x.pos += n; - offset -= n; - } - - /* request skip (if not zero) */ - if (offset) { - state->seek = 1; - state->skip = offset; - } - return state->x.pos + offset; -} - -/* -- see zlib.h -- */ -z_off_t ZEXPORT gzseek(file, offset, whence) - gzFile file; - z_off_t offset; - int whence; -{ - z_off64_t ret; - - ret = gzseek64(file, (z_off64_t)offset, whence); - return ret == (z_off_t)ret ? (z_off_t)ret : -1; -} - -/* -- see zlib.h -- */ -z_off64_t ZEXPORT gztell64(file) - gzFile file; -{ - gz_statep state; - - /* get internal structure and check integrity */ - if (file == NULL) - return -1; - state = (gz_statep)file; - if (state->mode != GZ_READ && state->mode != GZ_WRITE) - return -1; - - /* return position */ - return state->x.pos + (state->seek ? state->skip : 0); -} - -/* -- see zlib.h -- */ -z_off_t ZEXPORT gztell(file) - gzFile file; -{ - z_off64_t ret; - - ret = gztell64(file); - return ret == (z_off_t)ret ? (z_off_t)ret : -1; -} - -/* -- see zlib.h -- */ -z_off64_t ZEXPORT gzoffset64(file) - gzFile file; -{ - z_off64_t offset; - gz_statep state; - - /* get internal structure and check integrity */ - if (file == NULL) - return -1; - state = (gz_statep)file; - if (state->mode != GZ_READ && state->mode != GZ_WRITE) - return -1; - - /* compute and return effective offset in file */ - offset = LSEEK(state->fd, 0, SEEK_CUR); - if (offset == -1) - return -1; - if (state->mode == GZ_READ) /* reading */ - offset -= state->strm.avail_in; /* don't count buffered input */ - return offset; -} - -/* -- see zlib.h -- */ -z_off_t ZEXPORT gzoffset(file) - gzFile file; -{ - z_off64_t ret; - - ret = gzoffset64(file); - return ret == (z_off_t)ret ? (z_off_t)ret : -1; -} - -/* -- see zlib.h -- */ -int ZEXPORT gzeof(file) - gzFile file; -{ - gz_statep state; - - /* get internal structure and check integrity */ - if (file == NULL) - return 0; - state = (gz_statep)file; - if (state->mode != GZ_READ && state->mode != GZ_WRITE) - return 0; - - /* return end-of-file state */ - return state->mode == GZ_READ ? state->past : 0; -} - -/* -- see zlib.h -- */ -const char * ZEXPORT gzerror(file, errnum) - gzFile file; - int *errnum; -{ - gz_statep state; - - /* get internal structure and check integrity */ - if (file == NULL) - return NULL; - state = (gz_statep)file; - if (state->mode != GZ_READ && state->mode != GZ_WRITE) - return NULL; - - /* return error information */ - if (errnum != NULL) - *errnum = state->err; - return state->err == Z_MEM_ERROR ? "out of memory" : - (state->msg == NULL ? "" : state->msg); -} - -/* -- see zlib.h -- */ -void ZEXPORT gzclearerr(file) - gzFile file; -{ - gz_statep state; - - /* get internal structure and check integrity */ - if (file == NULL) - return; - state = (gz_statep)file; - if (state->mode != GZ_READ && state->mode != GZ_WRITE) - return; - - /* clear error and end-of-file */ - if (state->mode == GZ_READ) { - state->eof = 0; - state->past = 0; - } - gz_error(state, Z_OK, NULL); -} - -/* Create an error message in allocated memory and set state->err and - state->msg accordingly. Free any previous error message already there. Do - not try to free or allocate space if the error is Z_MEM_ERROR (out of - memory). Simply save the error message as a static string. If there is an - allocation failure constructing the error message, then convert the error to - out of memory. */ -void ZLIB_INTERNAL gz_error(state, err, msg) - gz_statep state; - int err; - const char *msg; -{ - /* free previously allocated message and clear */ - if (state->msg != NULL) { - if (state->err != Z_MEM_ERROR) - free(state->msg); - state->msg = NULL; - } - - /* if fatal, set state->x.have to 0 so that the gzgetc() macro fails */ - if (err != Z_OK && err != Z_BUF_ERROR) - state->x.have = 0; - - /* set error code, and if no message, then done */ - state->err = err; - if (msg == NULL) - return; - - /* for an out of memory error, return literal string when requested */ - if (err == Z_MEM_ERROR) - return; - - /* construct error message with path */ - if ((state->msg = (char *)malloc(strlen(state->path) + strlen(msg) + 3)) == - NULL) { - state->err = Z_MEM_ERROR; - return; - } -#if !defined(NO_snprintf) && !defined(NO_vsnprintf) - snprintf(state->msg, strlen(state->path) + strlen(msg) + 3, - "%s%s%s", state->path, ": ", msg); -#else - strcpy(state->msg, state->path); - strcat(state->msg, ": "); - strcat(state->msg, msg); -#endif - return; -} - -#ifndef INT_MAX -/* portably return maximum value for an int (when limits.h presumed not - available) -- we need to do this to cover cases where 2's complement not - used, since C standard permits 1's complement and sign-bit representations, - otherwise we could just use ((unsigned)-1) >> 1 */ -unsigned ZLIB_INTERNAL gz_intmax() -{ - unsigned p, q; - - p = 1; - do { - q = p; - p <<= 1; - p++; - } while (p > q); - return q >> 1; -} -#endif diff --git a/src/utilfuns/zlib/gzread.c b/src/utilfuns/zlib/gzread.c deleted file mode 100644 index b6c99cd..0000000 --- a/src/utilfuns/zlib/gzread.c +++ /dev/null @@ -1,601 +0,0 @@ -/* gzread.c -- zlib functions for reading gzip files - * Copyright (C) 2004, 2005, 2010, 2011, 2012, 2013 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -#include "gzguts.h" - -#if !defined(__GNUC__) && !defined(_WIN32_WCE) -#include <io.h> -#include <direct.h> -#else -#include <unistd.h> -#endif - -/* Local functions */ -local int gz_load OF((gz_statep, unsigned char *, unsigned, unsigned *)); -local int gz_avail OF((gz_statep)); -local int gz_look OF((gz_statep)); -local int gz_decomp OF((gz_statep)); -local int gz_fetch OF((gz_statep)); -local int gz_skip OF((gz_statep, z_off64_t)); - -/* Use read() to load a buffer -- return -1 on error, otherwise 0. Read from - state->fd, and update state->eof, state->err, and state->msg as appropriate. - This function needs to loop on read(), since read() is not guaranteed to - read the number of bytes requested, depending on the type of descriptor. */ -local int gz_load(state, buf, len, have) - gz_statep state; - unsigned char *buf; - unsigned len; - unsigned *have; -{ - int ret; - - *have = 0; - do { - ret = (int)read(state->fd, buf + *have, len - *have); - if (ret <= 0) - break; - *have += ret; - } while (*have < len); - if (ret < 0) { - gz_error(state, Z_ERRNO, zstrerror()); - return -1; - } - if (ret == 0) - state->eof = 1; - return 0; -} - -/* Load up input buffer and set eof flag if last data loaded -- return -1 on - error, 0 otherwise. Note that the eof flag is set when the end of the input - file is reached, even though there may be unused data in the buffer. Once - that data has been used, no more attempts will be made to read the file. - If strm->avail_in != 0, then the current data is moved to the beginning of - the input buffer, and then the remainder of the buffer is loaded with the - available data from the input file. */ -local int gz_avail(state) - gz_statep state; -{ - unsigned got; - z_streamp strm = &(state->strm); - - if (state->err != Z_OK && state->err != Z_BUF_ERROR) - return -1; - if (state->eof == 0) { - if (strm->avail_in) { /* copy what's there to the start */ - unsigned char *p = state->in; - unsigned const char *q = strm->next_in; - unsigned n = strm->avail_in; - do { - *p++ = *q++; - } while (--n); - } - if (gz_load(state, state->in + strm->avail_in, - state->size - strm->avail_in, &got) == -1) - return -1; - strm->avail_in += got; - strm->next_in = state->in; - } - return 0; -} - -/* Look for gzip header, set up for inflate or copy. state->x.have must be 0. - If this is the first time in, allocate required memory. state->how will be - left unchanged if there is no more input data available, will be set to COPY - if there is no gzip header and direct copying will be performed, or it will - be set to GZIP for decompression. If direct copying, then leftover input - data from the input buffer will be copied to the output buffer. In that - case, all further file reads will be directly to either the output buffer or - a user buffer. If decompressing, the inflate state will be initialized. - gz_look() will return 0 on success or -1 on failure. */ -local int gz_look(state) - gz_statep state; -{ - z_streamp strm = &(state->strm); - - /* allocate read buffers and inflate memory */ - if (state->size == 0) { - /* allocate buffers */ - state->in = (unsigned char *)malloc(state->want); - state->out = (unsigned char *)malloc(state->want << 1); - if (state->in == NULL || state->out == NULL) { - if (state->out != NULL) - free(state->out); - if (state->in != NULL) - free(state->in); - gz_error(state, Z_MEM_ERROR, "out of memory"); - return -1; - } - state->size = state->want; - - /* allocate inflate memory */ - state->strm.zalloc = Z_NULL; - state->strm.zfree = Z_NULL; - state->strm.opaque = Z_NULL; - state->strm.avail_in = 0; - state->strm.next_in = Z_NULL; - if (inflateInit2(&(state->strm), 15 + 16) != Z_OK) { /* gunzip */ - free(state->out); - free(state->in); - state->size = 0; - gz_error(state, Z_MEM_ERROR, "out of memory"); - return -1; - } - } - - /* get at least the magic bytes in the input buffer */ - if (strm->avail_in < 2) { - if (gz_avail(state) == -1) - return -1; - if (strm->avail_in == 0) - return 0; - } - - /* look for gzip magic bytes -- if there, do gzip decoding (note: there is - a logical dilemma here when considering the case of a partially written - gzip file, to wit, if a single 31 byte is written, then we cannot tell - whether this is a single-byte file, or just a partially written gzip - file -- for here we assume that if a gzip file is being written, then - the header will be written in a single operation, so that reading a - single byte is sufficient indication that it is not a gzip file) */ - if (strm->avail_in > 1 && - strm->next_in[0] == 31 && strm->next_in[1] == 139) { - inflateReset(strm); - state->how = GZIP; - state->direct = 0; - return 0; - } - - /* no gzip header -- if we were decoding gzip before, then this is trailing - garbage. Ignore the trailing garbage and finish. */ - if (state->direct == 0) { - strm->avail_in = 0; - state->eof = 1; - state->x.have = 0; - return 0; - } - - /* doing raw i/o, copy any leftover input to output -- this assumes that - the output buffer is larger than the input buffer, which also assures - space for gzungetc() */ - state->x.next = state->out; - if (strm->avail_in) { - memcpy(state->x.next, strm->next_in, strm->avail_in); - state->x.have = strm->avail_in; - strm->avail_in = 0; - } - state->how = COPY; - state->direct = 1; - return 0; -} - -/* Decompress from input to the provided next_out and avail_out in the state. - On return, state->x.have and state->x.next point to the just decompressed - data. If the gzip stream completes, state->how is reset to LOOK to look for - the next gzip stream or raw data, once state->x.have is depleted. Returns 0 - on success, -1 on failure. */ -local int gz_decomp(state) - gz_statep state; -{ - int ret = Z_OK; - unsigned had; - z_streamp strm = &(state->strm); - - /* fill output buffer up to end of deflate stream */ - had = strm->avail_out; - do { - /* get more input for inflate() */ - if (strm->avail_in == 0 && gz_avail(state) == -1) - return -1; - if (strm->avail_in == 0) { - gz_error(state, Z_BUF_ERROR, "unexpected end of file"); - break; - } - - /* decompress and handle errors */ - ret = inflate(strm, Z_NO_FLUSH); - if (ret == Z_STREAM_ERROR || ret == Z_NEED_DICT) { - gz_error(state, Z_STREAM_ERROR, - "internal error: inflate stream corrupt"); - return -1; - } - if (ret == Z_MEM_ERROR) { - gz_error(state, Z_MEM_ERROR, "out of memory"); - return -1; - } - if (ret == Z_DATA_ERROR) { /* deflate stream invalid */ - gz_error(state, Z_DATA_ERROR, - strm->msg == NULL ? "compressed data error" : strm->msg); - return -1; - } - } while (strm->avail_out && ret != Z_STREAM_END); - - /* update available output */ - state->x.have = had - strm->avail_out; - state->x.next = strm->next_out - state->x.have; - - /* if the gzip stream completed successfully, look for another */ - if (ret == Z_STREAM_END) - state->how = LOOK; - - /* good decompression */ - return 0; -} - -/* Fetch data and put it in the output buffer. Assumes state->x.have is 0. - Data is either copied from the input file or decompressed from the input - file depending on state->how. If state->how is LOOK, then a gzip header is - looked for to determine whether to copy or decompress. Returns -1 on error, - otherwise 0. gz_fetch() will leave state->how as COPY or GZIP unless the - end of the input file has been reached and all data has been processed. */ -local int gz_fetch(state) - gz_statep state; -{ - z_streamp strm = &(state->strm); - - do { - switch(state->how) { - case LOOK: /* -> LOOK, COPY (only if never GZIP), or GZIP */ - if (gz_look(state) == -1) - return -1; - if (state->how == LOOK) - return 0; - break; - case COPY: /* -> COPY */ - if (gz_load(state, state->out, state->size << 1, &(state->x.have)) - == -1) - return -1; - state->x.next = state->out; - return 0; - case GZIP: /* -> GZIP or LOOK (if end of gzip stream) */ - strm->avail_out = state->size << 1; - strm->next_out = state->out; - if (gz_decomp(state) == -1) - return -1; - } - } while (state->x.have == 0 && (!state->eof || strm->avail_in)); - return 0; -} - -/* Skip len uncompressed bytes of output. Return -1 on error, 0 on success. */ -local int gz_skip(state, len) - gz_statep state; - z_off64_t len; -{ - unsigned n; - - /* skip over len bytes or reach end-of-file, whichever comes first */ - while (len) - /* skip over whatever is in output buffer */ - if (state->x.have) { - n = GT_OFF(state->x.have) || (z_off64_t)state->x.have > len ? - (unsigned)len : state->x.have; - state->x.have -= n; - state->x.next += n; - state->x.pos += n; - len -= n; - } - - /* output buffer empty -- return if we're at the end of the input */ - else if (state->eof && state->strm.avail_in == 0) - break; - - /* need more data to skip -- load up output buffer */ - else { - /* get more output, looking for header if required */ - if (gz_fetch(state) == -1) - return -1; - } - return 0; -} - -/* -- see zlib.h -- */ -int ZEXPORT gzread(file, buf, len) - gzFile file; - voidp buf; - unsigned len; -{ - unsigned got, n; - gz_statep state; - z_streamp strm; - - /* get internal structure */ - if (file == NULL) - return -1; - state = (gz_statep)file; - strm = &(state->strm); - - /* check that we're reading and that there's no (serious) error */ - if (state->mode != GZ_READ || - (state->err != Z_OK && state->err != Z_BUF_ERROR)) - return -1; - - /* since an int is returned, make sure len fits in one, otherwise return - with an error (this avoids the flaw in the interface) */ - if ((int)len < 0) { - gz_error(state, Z_DATA_ERROR, "requested length does not fit in int"); - return -1; - } - - /* if len is zero, avoid unnecessary operations */ - if (len == 0) - return 0; - - /* process a skip request */ - if (state->seek) { - state->seek = 0; - if (gz_skip(state, state->skip) == -1) - return -1; - } - - /* get len bytes to buf, or less than len if at the end */ - got = 0; - do { - /* first just try copying data from the output buffer */ - if (state->x.have) { - n = state->x.have > len ? len : state->x.have; - memcpy(buf, state->x.next, n); - state->x.next += n; - state->x.have -= n; - } - - /* output buffer empty -- return if we're at the end of the input */ - else if (state->eof && strm->avail_in == 0) { - state->past = 1; /* tried to read past end */ - break; - } - - /* need output data -- for small len or new stream load up our output - buffer */ - else if (state->how == LOOK || len < (state->size << 1)) { - /* get more output, looking for header if required */ - if (gz_fetch(state) == -1) - return -1; - continue; /* no progress yet -- go back to copy above */ - /* the copy above assures that we will leave with space in the - output buffer, allowing at least one gzungetc() to succeed */ - } - - /* large len -- read directly into user buffer */ - else if (state->how == COPY) { /* read directly */ - if (gz_load(state, (unsigned char *)buf, len, &n) == -1) - return -1; - } - - /* large len -- decompress directly into user buffer */ - else { /* state->how == GZIP */ - strm->avail_out = len; - strm->next_out = (unsigned char *)buf; - if (gz_decomp(state) == -1) - return -1; - n = state->x.have; - state->x.have = 0; - } - - /* update progress */ - len -= n; - buf = (char *)buf + n; - got += n; - state->x.pos += n; - } while (len); - - /* return number of bytes read into user buffer (will fit in int) */ - return (int)got; -} - -/* -- see zlib.h -- */ -#ifdef Z_PREFIX_SET -# undef z_gzgetc -#else -# undef gzgetc -#endif -int ZEXPORT gzgetc(file) - gzFile file; -{ - int ret; - unsigned char buf[1]; - gz_statep state; - - /* get internal structure */ - if (file == NULL) - return -1; - state = (gz_statep)file; - - /* check that we're reading and that there's no (serious) error */ - if (state->mode != GZ_READ || - (state->err != Z_OK && state->err != Z_BUF_ERROR)) - return -1; - - /* try output buffer (no need to check for skip request) */ - if (state->x.have) { - state->x.have--; - state->x.pos++; - return *(state->x.next)++; - } - - /* nothing there -- try gzread() */ - ret = gzread(file, buf, 1); - return ret < 1 ? -1 : buf[0]; -} - -int ZEXPORT gzgetc_(file) -gzFile file; -{ - return gzgetc(file); -} - -/* -- see zlib.h -- */ -int ZEXPORT gzungetc(c, file) - int c; - gzFile file; -{ - gz_statep state; - - /* get internal structure */ - if (file == NULL) - return -1; - state = (gz_statep)file; - - /* check that we're reading and that there's no (serious) error */ - if (state->mode != GZ_READ || - (state->err != Z_OK && state->err != Z_BUF_ERROR)) - return -1; - - /* process a skip request */ - if (state->seek) { - state->seek = 0; - if (gz_skip(state, state->skip) == -1) - return -1; - } - - /* can't push EOF */ - if (c < 0) - return -1; - - /* if output buffer empty, put byte at end (allows more pushing) */ - if (state->x.have == 0) { - state->x.have = 1; - state->x.next = state->out + (state->size << 1) - 1; - state->x.next[0] = c; - state->x.pos--; - state->past = 0; - return c; - } - - /* if no room, give up (must have already done a gzungetc()) */ - if (state->x.have == (state->size << 1)) { - gz_error(state, Z_DATA_ERROR, "out of room to push characters"); - return -1; - } - - /* slide output data if needed and insert byte before existing data */ - if (state->x.next == state->out) { - unsigned char *src = state->out + state->x.have; - unsigned char *dest = state->out + (state->size << 1); - while (src > state->out) - *--dest = *--src; - state->x.next = dest; - } - state->x.have++; - state->x.next--; - state->x.next[0] = c; - state->x.pos--; - state->past = 0; - return c; -} - -/* -- see zlib.h -- */ -char * ZEXPORT gzgets(file, buf, len) - gzFile file; - char *buf; - int len; -{ - unsigned left, n; - char *str; - unsigned char *eol; - gz_statep state; - - /* check parameters and get internal structure */ - if (file == NULL || buf == NULL || len < 1) - return NULL; - state = (gz_statep)file; - - /* check that we're reading and that there's no (serious) error */ - if (state->mode != GZ_READ || - (state->err != Z_OK && state->err != Z_BUF_ERROR)) - return NULL; - - /* process a skip request */ - if (state->seek) { - state->seek = 0; - if (gz_skip(state, state->skip) == -1) - return NULL; - } - - /* copy output bytes up to new line or len - 1, whichever comes first -- - append a terminating zero to the string (we don't check for a zero in - the contents, let the user worry about that) */ - str = buf; - left = (unsigned)len - 1; - if (left) do { - /* assure that something is in the output buffer */ - if (state->x.have == 0 && gz_fetch(state) == -1) - return NULL; /* error */ - if (state->x.have == 0) { /* end of file */ - state->past = 1; /* read past end */ - break; /* return what we have */ - } - - /* look for end-of-line in current output buffer */ - n = state->x.have > left ? left : state->x.have; - eol = (unsigned char *)memchr(state->x.next, '\n', n); - if (eol != NULL) - n = (unsigned)(eol - state->x.next) + 1; - - /* copy through end-of-line, or remainder if not found */ - memcpy(buf, state->x.next, n); - state->x.have -= n; - state->x.next += n; - state->x.pos += n; - left -= n; - buf += n; - } while (left && eol == NULL); - - /* return terminated string, or if nothing, end of file */ - if (buf == str) - return NULL; - buf[0] = 0; - return str; -} - -/* -- see zlib.h -- */ -int ZEXPORT gzdirect(file) - gzFile file; -{ - gz_statep state; - - /* get internal structure */ - if (file == NULL) - return 0; - state = (gz_statep)file; - - /* if the state is not known, but we can find out, then do so (this is - mainly for right after a gzopen() or gzdopen()) */ - if (state->mode == GZ_READ && state->how == LOOK && state->x.have == 0) - (void)gz_look(state); - - /* return 1 if transparent, 0 if processing a gzip stream */ - return state->direct; -} - -/* -- see zlib.h -- */ -int ZEXPORT gzclose_r(file) - gzFile file; -{ - int ret, err; - gz_statep state; - - /* get internal structure */ - if (file == NULL) - return Z_STREAM_ERROR; - state = (gz_statep)file; - - /* check that we're reading */ - if (state->mode != GZ_READ) - return Z_STREAM_ERROR; - - /* free memory and close file */ - if (state->size) { - inflateEnd(&(state->strm)); - free(state->out); - free(state->in); - } - err = state->err == Z_BUF_ERROR ? Z_BUF_ERROR : Z_OK; - gz_error(state, Z_OK, NULL); - free(state->path); - ret = close(state->fd); - free(state); - return ret ? Z_ERRNO : err; -} diff --git a/src/utilfuns/zlib/gzwrite.c b/src/utilfuns/zlib/gzwrite.c deleted file mode 100644 index 5b4c677..0000000 --- a/src/utilfuns/zlib/gzwrite.c +++ /dev/null @@ -1,582 +0,0 @@ -/* gzwrite.c -- zlib functions for writing gzip files - * Copyright (C) 2004, 2005, 2010, 2011, 2012, 2013 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -#include "gzguts.h" -#if !defined(__GNUC__) && !defined(_WIN32_WCE) -#include <io.h> -#include <direct.h> -#else -#include <unistd.h> -#endif -/* Local functions */ -local int gz_init OF((gz_statep)); -local int gz_comp OF((gz_statep, int)); -local int gz_zero OF((gz_statep, z_off64_t)); - -/* Initialize state for writing a gzip file. Mark initialization by setting - state->size to non-zero. Return -1 on failure or 0 on success. */ -local int gz_init(state) - gz_statep state; -{ - int ret; - z_streamp strm = &(state->strm); - - /* allocate input buffer */ - state->in = (unsigned char *)malloc(state->want); - if (state->in == NULL) { - gz_error(state, Z_MEM_ERROR, "out of memory"); - return -1; - } - - /* only need output buffer and deflate state if compressing */ - if (!state->direct) { - /* allocate output buffer */ - state->out = (unsigned char *)malloc(state->want); - if (state->out == NULL) { - free(state->in); - gz_error(state, Z_MEM_ERROR, "out of memory"); - return -1; - } - - /* allocate deflate memory, set up for gzip compression */ - strm->zalloc = Z_NULL; - strm->zfree = Z_NULL; - strm->opaque = Z_NULL; - ret = deflateInit2(strm, state->level, Z_DEFLATED, - MAX_WBITS + 16, DEF_MEM_LEVEL, state->strategy); - if (ret != Z_OK) { - free(state->out); - free(state->in); - gz_error(state, Z_MEM_ERROR, "out of memory"); - return -1; - } - } - - /* mark state as initialized */ - state->size = state->want; - - /* initialize write buffer if compressing */ - if (!state->direct) { - strm->avail_out = state->size; - strm->next_out = state->out; - state->x.next = strm->next_out; - } - return 0; -} - -/* Compress whatever is at avail_in and next_in and write to the output file. - Return -1 if there is an error writing to the output file, otherwise 0. - flush is assumed to be a valid deflate() flush value. If flush is Z_FINISH, - then the deflate() state is reset to start a new gzip stream. If gz->direct - is true, then simply write to the output file without compressing, and - ignore flush. */ -local int gz_comp(state, flush) - gz_statep state; - int flush; -{ - int ret, got; - unsigned have; - z_streamp strm = &(state->strm); - - /* allocate memory if this is the first time through */ - if (state->size == 0 && gz_init(state) == -1) - return -1; - - /* write directly if requested */ - if (state->direct) { - got = (int)write(state->fd, strm->next_in, strm->avail_in); - if (got < 0 || (unsigned)got != strm->avail_in) { - gz_error(state, Z_ERRNO, zstrerror()); - return -1; - } - strm->avail_in = 0; - return 0; - } - - /* run deflate() on provided input until it produces no more output */ - ret = Z_OK; - do { - /* write out current buffer contents if full, or if flushing, but if - doing Z_FINISH then don't write until we get to Z_STREAM_END */ - if (strm->avail_out == 0 || (flush != Z_NO_FLUSH && - (flush != Z_FINISH || ret == Z_STREAM_END))) { - have = (unsigned)(strm->next_out - state->x.next); - if (have && ((got = (int)write(state->fd, state->x.next, have)) < 0 || - (unsigned)got != have)) { - gz_error(state, Z_ERRNO, zstrerror()); - return -1; - } - if (strm->avail_out == 0) { - strm->avail_out = state->size; - strm->next_out = state->out; - } - state->x.next = strm->next_out; - } - - /* compress */ - have = strm->avail_out; - ret = deflate(strm, flush); - if (ret == Z_STREAM_ERROR) { - gz_error(state, Z_STREAM_ERROR, - "internal error: deflate stream corrupt"); - return -1; - } - have -= strm->avail_out; - } while (have); - - /* if that completed a deflate stream, allow another to start */ - if (flush == Z_FINISH) - deflateReset(strm); - - /* all done, no errors */ - return 0; -} - -/* Compress len zeros to output. Return -1 on error, 0 on success. */ -local int gz_zero(state, len) - gz_statep state; - z_off64_t len; -{ - int first; - unsigned n; - z_streamp strm = &(state->strm); - - /* consume whatever's left in the input buffer */ - if (strm->avail_in && gz_comp(state, Z_NO_FLUSH) == -1) - return -1; - - /* compress len zeros (len guaranteed > 0) */ - first = 1; - while (len) { - n = GT_OFF(state->size) || (z_off64_t)state->size > len ? - (unsigned)len : state->size; - if (first) { - memset(state->in, 0, n); - first = 0; - } - strm->avail_in = n; - strm->next_in = state->in; - state->x.pos += n; - if (gz_comp(state, Z_NO_FLUSH) == -1) - return -1; - len -= n; - } - return 0; -} - -/* -- see zlib.h -- */ -int ZEXPORT gzwrite(file, buf, len) - gzFile file; - voidpc buf; - unsigned len; -{ - unsigned put = len; - gz_statep state; - z_streamp strm; - - /* get internal structure */ - if (file == NULL) - return 0; - state = (gz_statep)file; - strm = &(state->strm); - - /* check that we're writing and that there's no error */ - if (state->mode != GZ_WRITE || state->err != Z_OK) - return 0; - - /* since an int is returned, make sure len fits in one, otherwise return - with an error (this avoids the flaw in the interface) */ - if ((int)len < 0) { - gz_error(state, Z_DATA_ERROR, "requested length does not fit in int"); - return 0; - } - - /* if len is zero, avoid unnecessary operations */ - if (len == 0) - return 0; - - /* allocate memory if this is the first time through */ - if (state->size == 0 && gz_init(state) == -1) - return 0; - - /* check for seek request */ - if (state->seek) { - state->seek = 0; - if (gz_zero(state, state->skip) == -1) - return 0; - } - - /* for small len, copy to input buffer, otherwise compress directly */ - if (len < state->size) { - /* copy to input buffer, compress when full */ - do { - unsigned have, copy; - - if (strm->avail_in == 0) - strm->next_in = state->in; - have = (unsigned)((strm->next_in + strm->avail_in) - state->in); - copy = state->size - have; - if (copy > len) - copy = len; - memcpy(state->in + have, buf, copy); - strm->avail_in += copy; - state->x.pos += copy; - buf = (const char *)buf + copy; - len -= copy; - if (len && gz_comp(state, Z_NO_FLUSH) == -1) - return 0; - } while (len); - } - else { - /* consume whatever's left in the input buffer */ - if (strm->avail_in && gz_comp(state, Z_NO_FLUSH) == -1) - return 0; - - /* directly compress user buffer to file */ - strm->avail_in = len; - strm->next_in = (z_const Bytef *)buf; - state->x.pos += len; - if (gz_comp(state, Z_NO_FLUSH) == -1) - return 0; - } - - /* input was all buffered or compressed (put will fit in int) */ - return (int)put; -} - -/* -- see zlib.h -- */ -int ZEXPORT gzputc(file, c) - gzFile file; - int c; -{ - unsigned have; - unsigned char buf[1]; - gz_statep state; - z_streamp strm; - - /* get internal structure */ - if (file == NULL) - return -1; - state = (gz_statep)file; - strm = &(state->strm); - - /* check that we're writing and that there's no error */ - if (state->mode != GZ_WRITE || state->err != Z_OK) - return -1; - - /* check for seek request */ - if (state->seek) { - state->seek = 0; - if (gz_zero(state, state->skip) == -1) - return -1; - } - - /* try writing to input buffer for speed (state->size == 0 if buffer not - initialized) */ - if (state->size) { - if (strm->avail_in == 0) - strm->next_in = state->in; - have = (unsigned)((strm->next_in + strm->avail_in) - state->in); - if (have < state->size) { - state->in[have] = c; - strm->avail_in++; - state->x.pos++; - return c & 0xff; - } - } - - /* no room in buffer or not initialized, use gz_write() */ - buf[0] = c; - if (gzwrite(file, buf, 1) != 1) - return -1; - return c & 0xff; -} - -/* -- see zlib.h -- */ -int ZEXPORT gzputs(file, str) - gzFile file; - const char *str; -{ - int ret; - unsigned len; - - /* write string */ - len = (unsigned)strlen(str); - ret = gzwrite(file, str, len); - return ret == 0 && len != 0 ? -1 : ret; -} - -#if defined(STDC) || defined(Z_HAVE_STDARG_H) -#include <stdarg.h> - -/* -- see zlib.h -- */ -int ZEXPORTVA gzvprintf(gzFile file, const char *format, va_list va) -{ - int size, len; - gz_statep state; - z_streamp strm; - - /* get internal structure */ - if (file == NULL) - return -1; - state = (gz_statep)file; - strm = &(state->strm); - - /* check that we're writing and that there's no error */ - if (state->mode != GZ_WRITE || state->err != Z_OK) - return 0; - - /* make sure we have some buffer space */ - if (state->size == 0 && gz_init(state) == -1) - return 0; - - /* check for seek request */ - if (state->seek) { - state->seek = 0; - if (gz_zero(state, state->skip) == -1) - return 0; - } - - /* consume whatever's left in the input buffer */ - if (strm->avail_in && gz_comp(state, Z_NO_FLUSH) == -1) - return 0; - - /* do the printf() into the input buffer, put length in len */ - size = (int)(state->size); - state->in[size - 1] = 0; -#ifdef NO_vsnprintf -# ifdef HAS_vsprintf_void - (void)vsprintf((char *)(state->in), format, va); - for (len = 0; len < size; len++) - if (state->in[len] == 0) break; -# else - len = vsprintf((char *)(state->in), format, va); -# endif -#else -# ifdef HAS_vsnprintf_void - (void)vsnprintf((char *)(state->in), size, format, va); - len = strlen((char *)(state->in)); -# else - len = vsnprintf((char *)(state->in), size, format, va); -# endif -#endif - - /* check that printf() results fit in buffer */ - if (len <= 0 || len >= (int)size || state->in[size - 1] != 0) - return 0; - - /* update buffer and position, defer compression until needed */ - strm->avail_in = (unsigned)len; - strm->next_in = state->in; - state->x.pos += len; - return len; -} - -int ZEXPORTVA gzprintf(gzFile file, const char *format, ...) -{ - va_list va; - int ret; - - va_start(va, format); - ret = gzvprintf(file, format, va); - va_end(va); - return ret; -} - -#else /* !STDC && !Z_HAVE_STDARG_H */ - -/* -- see zlib.h -- */ -int ZEXPORTVA gzprintf (file, format, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, - a11, a12, a13, a14, a15, a16, a17, a18, a19, a20) - gzFile file; - const char *format; - int a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, - a11, a12, a13, a14, a15, a16, a17, a18, a19, a20; -{ - int size, len; - gz_statep state; - z_streamp strm; - - /* get internal structure */ - if (file == NULL) - return -1; - state = (gz_statep)file; - strm = &(state->strm); - - /* check that can really pass pointer in ints */ - if (sizeof(int) != sizeof(void *)) - return 0; - - /* check that we're writing and that there's no error */ - if (state->mode != GZ_WRITE || state->err != Z_OK) - return 0; - - /* make sure we have some buffer space */ - if (state->size == 0 && gz_init(state) == -1) - return 0; - - /* check for seek request */ - if (state->seek) { - state->seek = 0; - if (gz_zero(state, state->skip) == -1) - return 0; - } - - /* consume whatever's left in the input buffer */ - if (strm->avail_in && gz_comp(state, Z_NO_FLUSH) == -1) - return 0; - - /* do the printf() into the input buffer, put length in len */ - size = (int)(state->size); - state->in[size - 1] = 0; -#ifdef NO_snprintf -# ifdef HAS_sprintf_void - sprintf((char *)(state->in), format, a1, a2, a3, a4, a5, a6, a7, a8, - a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20); - for (len = 0; len < size; len++) - if (state->in[len] == 0) break; -# else - len = sprintf((char *)(state->in), format, a1, a2, a3, a4, a5, a6, a7, a8, - a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20); -# endif -#else -# ifdef HAS_snprintf_void - snprintf((char *)(state->in), size, format, a1, a2, a3, a4, a5, a6, a7, a8, - a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20); - len = strlen((char *)(state->in)); -# else - len = snprintf((char *)(state->in), size, format, a1, a2, a3, a4, a5, a6, - a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, - a19, a20); -# endif -#endif - - /* check that printf() results fit in buffer */ - if (len <= 0 || len >= (int)size || state->in[size - 1] != 0) - return 0; - - /* update buffer and position, defer compression until needed */ - strm->avail_in = (unsigned)len; - strm->next_in = state->in; - state->x.pos += len; - return len; -} - -#endif - -/* -- see zlib.h -- */ -int ZEXPORT gzflush(file, flush) - gzFile file; - int flush; -{ - gz_statep state; - - /* get internal structure */ - if (file == NULL) - return -1; - state = (gz_statep)file; - - /* check that we're writing and that there's no error */ - if (state->mode != GZ_WRITE || state->err != Z_OK) - return Z_STREAM_ERROR; - - /* check flush parameter */ - if (flush < 0 || flush > Z_FINISH) - return Z_STREAM_ERROR; - - /* check for seek request */ - if (state->seek) { - state->seek = 0; - if (gz_zero(state, state->skip) == -1) - return -1; - } - - /* compress remaining data with requested flush */ - gz_comp(state, flush); - return state->err; -} - -/* -- see zlib.h -- */ -int ZEXPORT gzsetparams(file, level, strategy) - gzFile file; - int level; - int strategy; -{ - gz_statep state; - z_streamp strm; - - /* get internal structure */ - if (file == NULL) - return Z_STREAM_ERROR; - state = (gz_statep)file; - strm = &(state->strm); - - /* check that we're writing and that there's no error */ - if (state->mode != GZ_WRITE || state->err != Z_OK) - return Z_STREAM_ERROR; - - /* if no change is requested, then do nothing */ - if (level == state->level && strategy == state->strategy) - return Z_OK; - - /* check for seek request */ - if (state->seek) { - state->seek = 0; - if (gz_zero(state, state->skip) == -1) - return -1; - } - - /* change compression parameters for subsequent input */ - if (state->size) { - /* flush previous input with previous parameters before changing */ - if (strm->avail_in && gz_comp(state, Z_PARTIAL_FLUSH) == -1) - return state->err; - deflateParams(strm, level, strategy); - } - state->level = level; - state->strategy = strategy; - return Z_OK; -} - -/* -- see zlib.h -- */ -int ZEXPORT gzclose_w(file) - gzFile file; -{ - int ret = Z_OK; - gz_statep state; - - /* get internal structure */ - if (file == NULL) - return Z_STREAM_ERROR; - state = (gz_statep)file; - - /* check that we're writing */ - if (state->mode != GZ_WRITE) - return Z_STREAM_ERROR; - - /* check for seek request */ - if (state->seek) { - state->seek = 0; - if (gz_zero(state, state->skip) == -1) - ret = state->err; - } - - /* flush, free memory, and close file */ - if (gz_comp(state, Z_FINISH) == -1) - ret = state->err; - if (state->size) { - if (!state->direct) { - (void)deflateEnd(&(state->strm)); - free(state->out); - } - free(state->in); - } - gz_error(state, Z_OK, NULL); - free(state->path); - if (close(state->fd) == -1) - ret = Z_ERRNO; - free(state); - return ret; -} diff --git a/src/utilfuns/zlib/infback.c b/src/utilfuns/zlib/infback.c deleted file mode 100644 index f3833c2..0000000 --- a/src/utilfuns/zlib/infback.c +++ /dev/null @@ -1,640 +0,0 @@ -/* infback.c -- inflate using a call-back interface - * Copyright (C) 1995-2011 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* - This code is largely copied from inflate.c. Normally either infback.o or - inflate.o would be linked into an application--not both. The interface - with inffast.c is retained so that optimized assembler-coded versions of - inflate_fast() can be used with either inflate.c or infback.c. - */ - -#include "zutil.h" -#include "inftrees.h" -#include "inflate.h" -#include "inffast.h" - -/* function prototypes */ -local void fixedtables OF((struct inflate_state FAR *state)); - -/* - strm provides memory allocation functions in zalloc and zfree, or - Z_NULL to use the library memory allocation functions. - - windowBits is in the range 8..15, and window is a user-supplied - window and output buffer that is 2**windowBits bytes. - */ -int ZEXPORT inflateBackInit_(strm, windowBits, window, version, stream_size) -z_streamp strm; -int windowBits; -unsigned char FAR *window; -const char *version; -int stream_size; -{ - struct inflate_state FAR *state; - - if (version == Z_NULL || version[0] != ZLIB_VERSION[0] || - stream_size != (int)(sizeof(z_stream))) - return Z_VERSION_ERROR; - if (strm == Z_NULL || window == Z_NULL || - windowBits < 8 || windowBits > 15) - return Z_STREAM_ERROR; - strm->msg = Z_NULL; /* in case we return an error */ - if (strm->zalloc == (alloc_func)0) { -#ifdef Z_SOLO - return Z_STREAM_ERROR; -#else - strm->zalloc = zcalloc; - strm->opaque = (voidpf)0; -#endif - } - if (strm->zfree == (free_func)0) -#ifdef Z_SOLO - return Z_STREAM_ERROR; -#else - strm->zfree = zcfree; -#endif - state = (struct inflate_state FAR *)ZALLOC(strm, 1, - sizeof(struct inflate_state)); - if (state == Z_NULL) return Z_MEM_ERROR; - Tracev((stderr, "inflate: allocated\n")); - strm->state = (struct internal_state FAR *)state; - state->dmax = 32768U; - state->wbits = windowBits; - state->wsize = 1U << windowBits; - state->window = window; - state->wnext = 0; - state->whave = 0; - return Z_OK; -} - -/* - Return state with length and distance decoding tables and index sizes set to - fixed code decoding. Normally this returns fixed tables from inffixed.h. - If BUILDFIXED is defined, then instead this routine builds the tables the - first time it's called, and returns those tables the first time and - thereafter. This reduces the size of the code by about 2K bytes, in - exchange for a little execution time. However, BUILDFIXED should not be - used for threaded applications, since the rewriting of the tables and virgin - may not be thread-safe. - */ -local void fixedtables(state) -struct inflate_state FAR *state; -{ -#ifdef BUILDFIXED - static int virgin = 1; - static code *lenfix, *distfix; - static code fixed[544]; - - /* build fixed huffman tables if first call (may not be thread safe) */ - if (virgin) { - unsigned sym, bits; - static code *next; - - /* literal/length table */ - sym = 0; - while (sym < 144) state->lens[sym++] = 8; - while (sym < 256) state->lens[sym++] = 9; - while (sym < 280) state->lens[sym++] = 7; - while (sym < 288) state->lens[sym++] = 8; - next = fixed; - lenfix = next; - bits = 9; - inflate_table(LENS, state->lens, 288, &(next), &(bits), state->work); - - /* distance table */ - sym = 0; - while (sym < 32) state->lens[sym++] = 5; - distfix = next; - bits = 5; - inflate_table(DISTS, state->lens, 32, &(next), &(bits), state->work); - - /* do this just once */ - virgin = 0; - } -#else /* !BUILDFIXED */ -# include "inffixed.h" -#endif /* BUILDFIXED */ - state->lencode = lenfix; - state->lenbits = 9; - state->distcode = distfix; - state->distbits = 5; -} - -/* Macros for inflateBack(): */ - -/* Load returned state from inflate_fast() */ -#define LOAD() \ - do { \ - put = strm->next_out; \ - left = strm->avail_out; \ - next = strm->next_in; \ - have = strm->avail_in; \ - hold = state->hold; \ - bits = state->bits; \ - } while (0) - -/* Set state from registers for inflate_fast() */ -#define RESTORE() \ - do { \ - strm->next_out = put; \ - strm->avail_out = left; \ - strm->next_in = next; \ - strm->avail_in = have; \ - state->hold = hold; \ - state->bits = bits; \ - } while (0) - -/* Clear the input bit accumulator */ -#define INITBITS() \ - do { \ - hold = 0; \ - bits = 0; \ - } while (0) - -/* Assure that some input is available. If input is requested, but denied, - then return a Z_BUF_ERROR from inflateBack(). */ -#define PULL() \ - do { \ - if (have == 0) { \ - have = in(in_desc, &next); \ - if (have == 0) { \ - next = Z_NULL; \ - ret = Z_BUF_ERROR; \ - goto inf_leave; \ - } \ - } \ - } while (0) - -/* Get a byte of input into the bit accumulator, or return from inflateBack() - with an error if there is no input available. */ -#define PULLBYTE() \ - do { \ - PULL(); \ - have--; \ - hold += (unsigned long)(*next++) << bits; \ - bits += 8; \ - } while (0) - -/* Assure that there are at least n bits in the bit accumulator. If there is - not enough available input to do that, then return from inflateBack() with - an error. */ -#define NEEDBITS(n) \ - do { \ - while (bits < (unsigned)(n)) \ - PULLBYTE(); \ - } while (0) - -/* Return the low n bits of the bit accumulator (n < 16) */ -#define BITS(n) \ - ((unsigned)hold & ((1U << (n)) - 1)) - -/* Remove n bits from the bit accumulator */ -#define DROPBITS(n) \ - do { \ - hold >>= (n); \ - bits -= (unsigned)(n); \ - } while (0) - -/* Remove zero to seven bits as needed to go to a byte boundary */ -#define BYTEBITS() \ - do { \ - hold >>= bits & 7; \ - bits -= bits & 7; \ - } while (0) - -/* Assure that some output space is available, by writing out the window - if it's full. If the write fails, return from inflateBack() with a - Z_BUF_ERROR. */ -#define ROOM() \ - do { \ - if (left == 0) { \ - put = state->window; \ - left = state->wsize; \ - state->whave = left; \ - if (out(out_desc, put, left)) { \ - ret = Z_BUF_ERROR; \ - goto inf_leave; \ - } \ - } \ - } while (0) - -/* - strm provides the memory allocation functions and window buffer on input, - and provides information on the unused input on return. For Z_DATA_ERROR - returns, strm will also provide an error message. - - in() and out() are the call-back input and output functions. When - inflateBack() needs more input, it calls in(). When inflateBack() has - filled the window with output, or when it completes with data in the - window, it calls out() to write out the data. The application must not - change the provided input until in() is called again or inflateBack() - returns. The application must not change the window/output buffer until - inflateBack() returns. - - in() and out() are called with a descriptor parameter provided in the - inflateBack() call. This parameter can be a structure that provides the - information required to do the read or write, as well as accumulated - information on the input and output such as totals and check values. - - in() should return zero on failure. out() should return non-zero on - failure. If either in() or out() fails, than inflateBack() returns a - Z_BUF_ERROR. strm->next_in can be checked for Z_NULL to see whether it - was in() or out() that caused in the error. Otherwise, inflateBack() - returns Z_STREAM_END on success, Z_DATA_ERROR for an deflate format - error, or Z_MEM_ERROR if it could not allocate memory for the state. - inflateBack() can also return Z_STREAM_ERROR if the input parameters - are not correct, i.e. strm is Z_NULL or the state was not initialized. - */ -int ZEXPORT inflateBack(strm, in, in_desc, out, out_desc) -z_streamp strm; -in_func in; -void FAR *in_desc; -out_func out; -void FAR *out_desc; -{ - struct inflate_state FAR *state; - z_const unsigned char FAR *next; /* next input */ - unsigned char FAR *put; /* next output */ - unsigned have, left; /* available input and output */ - unsigned long hold; /* bit buffer */ - unsigned bits; /* bits in bit buffer */ - unsigned copy; /* number of stored or match bytes to copy */ - unsigned char FAR *from; /* where to copy match bytes from */ - code here; /* current decoding table entry */ - code last; /* parent table entry */ - unsigned len; /* length to copy for repeats, bits to drop */ - int ret; /* return code */ - static const unsigned short order[19] = /* permutation of code lengths */ - {16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15}; - - /* Check that the strm exists and that the state was initialized */ - if (strm == Z_NULL || strm->state == Z_NULL) - return Z_STREAM_ERROR; - state = (struct inflate_state FAR *)strm->state; - - /* Reset the state */ - strm->msg = Z_NULL; - state->mode = TYPE; - state->last = 0; - state->whave = 0; - next = strm->next_in; - have = next != Z_NULL ? strm->avail_in : 0; - hold = 0; - bits = 0; - put = state->window; - left = state->wsize; - - /* Inflate until end of block marked as last */ - for (;;) - switch (state->mode) { - case TYPE: - /* determine and dispatch block type */ - if (state->last) { - BYTEBITS(); - state->mode = DONE; - break; - } - NEEDBITS(3); - state->last = BITS(1); - DROPBITS(1); - switch (BITS(2)) { - case 0: /* stored block */ - Tracev((stderr, "inflate: stored block%s\n", - state->last ? " (last)" : "")); - state->mode = STORED; - break; - case 1: /* fixed block */ - fixedtables(state); - Tracev((stderr, "inflate: fixed codes block%s\n", - state->last ? " (last)" : "")); - state->mode = LEN; /* decode codes */ - break; - case 2: /* dynamic block */ - Tracev((stderr, "inflate: dynamic codes block%s\n", - state->last ? " (last)" : "")); - state->mode = TABLE; - break; - case 3: - strm->msg = (char *)"invalid block type"; - state->mode = BAD; - } - DROPBITS(2); - break; - - case STORED: - /* get and verify stored block length */ - BYTEBITS(); /* go to byte boundary */ - NEEDBITS(32); - if ((hold & 0xffff) != ((hold >> 16) ^ 0xffff)) { - strm->msg = (char *)"invalid stored block lengths"; - state->mode = BAD; - break; - } - state->length = (unsigned)hold & 0xffff; - Tracev((stderr, "inflate: stored length %u\n", - state->length)); - INITBITS(); - - /* copy stored block from input to output */ - while (state->length != 0) { - copy = state->length; - PULL(); - ROOM(); - if (copy > have) copy = have; - if (copy > left) copy = left; - zmemcpy(put, next, copy); - have -= copy; - next += copy; - left -= copy; - put += copy; - state->length -= copy; - } - Tracev((stderr, "inflate: stored end\n")); - state->mode = TYPE; - break; - - case TABLE: - /* get dynamic table entries descriptor */ - NEEDBITS(14); - state->nlen = BITS(5) + 257; - DROPBITS(5); - state->ndist = BITS(5) + 1; - DROPBITS(5); - state->ncode = BITS(4) + 4; - DROPBITS(4); -#ifndef PKZIP_BUG_WORKAROUND - if (state->nlen > 286 || state->ndist > 30) { - strm->msg = (char *)"too many length or distance symbols"; - state->mode = BAD; - break; - } -#endif - Tracev((stderr, "inflate: table sizes ok\n")); - - /* get code length code lengths (not a typo) */ - state->have = 0; - while (state->have < state->ncode) { - NEEDBITS(3); - state->lens[order[state->have++]] = (unsigned short)BITS(3); - DROPBITS(3); - } - while (state->have < 19) - state->lens[order[state->have++]] = 0; - state->next = state->codes; - state->lencode = (code const FAR *)(state->next); - state->lenbits = 7; - ret = inflate_table(CODES, state->lens, 19, &(state->next), - &(state->lenbits), state->work); - if (ret) { - strm->msg = (char *)"invalid code lengths set"; - state->mode = BAD; - break; - } - Tracev((stderr, "inflate: code lengths ok\n")); - - /* get length and distance code code lengths */ - state->have = 0; - while (state->have < state->nlen + state->ndist) { - for (;;) { - here = state->lencode[BITS(state->lenbits)]; - if ((unsigned)(here.bits) <= bits) break; - PULLBYTE(); - } - if (here.val < 16) { - DROPBITS(here.bits); - state->lens[state->have++] = here.val; - } - else { - if (here.val == 16) { - NEEDBITS(here.bits + 2); - DROPBITS(here.bits); - if (state->have == 0) { - strm->msg = (char *)"invalid bit length repeat"; - state->mode = BAD; - break; - } - len = (unsigned)(state->lens[state->have - 1]); - copy = 3 + BITS(2); - DROPBITS(2); - } - else if (here.val == 17) { - NEEDBITS(here.bits + 3); - DROPBITS(here.bits); - len = 0; - copy = 3 + BITS(3); - DROPBITS(3); - } - else { - NEEDBITS(here.bits + 7); - DROPBITS(here.bits); - len = 0; - copy = 11 + BITS(7); - DROPBITS(7); - } - if (state->have + copy > state->nlen + state->ndist) { - strm->msg = (char *)"invalid bit length repeat"; - state->mode = BAD; - break; - } - while (copy--) - state->lens[state->have++] = (unsigned short)len; - } - } - - /* handle error breaks in while */ - if (state->mode == BAD) break; - - /* check for end-of-block code (better have one) */ - if (state->lens[256] == 0) { - strm->msg = (char *)"invalid code -- missing end-of-block"; - state->mode = BAD; - break; - } - - /* build code tables -- note: do not change the lenbits or distbits - values here (9 and 6) without reading the comments in inftrees.h - concerning the ENOUGH constants, which depend on those values */ - state->next = state->codes; - state->lencode = (code const FAR *)(state->next); - state->lenbits = 9; - ret = inflate_table(LENS, state->lens, state->nlen, &(state->next), - &(state->lenbits), state->work); - if (ret) { - strm->msg = (char *)"invalid literal/lengths set"; - state->mode = BAD; - break; - } - state->distcode = (code const FAR *)(state->next); - state->distbits = 6; - ret = inflate_table(DISTS, state->lens + state->nlen, state->ndist, - &(state->next), &(state->distbits), state->work); - if (ret) { - strm->msg = (char *)"invalid distances set"; - state->mode = BAD; - break; - } - Tracev((stderr, "inflate: codes ok\n")); - state->mode = LEN; - - case LEN: - /* use inflate_fast() if we have enough input and output */ - if (have >= 6 && left >= 258) { - RESTORE(); - if (state->whave < state->wsize) - state->whave = state->wsize - left; - inflate_fast(strm, state->wsize); - LOAD(); - break; - } - - /* get a literal, length, or end-of-block code */ - for (;;) { - here = state->lencode[BITS(state->lenbits)]; - if ((unsigned)(here.bits) <= bits) break; - PULLBYTE(); - } - if (here.op && (here.op & 0xf0) == 0) { - last = here; - for (;;) { - here = state->lencode[last.val + - (BITS(last.bits + last.op) >> last.bits)]; - if ((unsigned)(last.bits + here.bits) <= bits) break; - PULLBYTE(); - } - DROPBITS(last.bits); - } - DROPBITS(here.bits); - state->length = (unsigned)here.val; - - /* process literal */ - if (here.op == 0) { - Tracevv((stderr, here.val >= 0x20 && here.val < 0x7f ? - "inflate: literal '%c'\n" : - "inflate: literal 0x%02x\n", here.val)); - ROOM(); - *put++ = (unsigned char)(state->length); - left--; - state->mode = LEN; - break; - } - - /* process end of block */ - if (here.op & 32) { - Tracevv((stderr, "inflate: end of block\n")); - state->mode = TYPE; - break; - } - - /* invalid code */ - if (here.op & 64) { - strm->msg = (char *)"invalid literal/length code"; - state->mode = BAD; - break; - } - - /* length code -- get extra bits, if any */ - state->extra = (unsigned)(here.op) & 15; - if (state->extra != 0) { - NEEDBITS(state->extra); - state->length += BITS(state->extra); - DROPBITS(state->extra); - } - Tracevv((stderr, "inflate: length %u\n", state->length)); - - /* get distance code */ - for (;;) { - here = state->distcode[BITS(state->distbits)]; - if ((unsigned)(here.bits) <= bits) break; - PULLBYTE(); - } - if ((here.op & 0xf0) == 0) { - last = here; - for (;;) { - here = state->distcode[last.val + - (BITS(last.bits + last.op) >> last.bits)]; - if ((unsigned)(last.bits + here.bits) <= bits) break; - PULLBYTE(); - } - DROPBITS(last.bits); - } - DROPBITS(here.bits); - if (here.op & 64) { - strm->msg = (char *)"invalid distance code"; - state->mode = BAD; - break; - } - state->offset = (unsigned)here.val; - - /* get distance extra bits, if any */ - state->extra = (unsigned)(here.op) & 15; - if (state->extra != 0) { - NEEDBITS(state->extra); - state->offset += BITS(state->extra); - DROPBITS(state->extra); - } - if (state->offset > state->wsize - (state->whave < state->wsize ? - left : 0)) { - strm->msg = (char *)"invalid distance too far back"; - state->mode = BAD; - break; - } - Tracevv((stderr, "inflate: distance %u\n", state->offset)); - - /* copy match from window to output */ - do { - ROOM(); - copy = state->wsize - state->offset; - if (copy < left) { - from = put + copy; - copy = left - copy; - } - else { - from = put - state->offset; - copy = left; - } - if (copy > state->length) copy = state->length; - state->length -= copy; - left -= copy; - do { - *put++ = *from++; - } while (--copy); - } while (state->length != 0); - break; - - case DONE: - /* inflate stream terminated properly -- write leftover output */ - ret = Z_STREAM_END; - if (left < state->wsize) { - if (out(out_desc, state->window, state->wsize - left)) - ret = Z_BUF_ERROR; - } - goto inf_leave; - - case BAD: - ret = Z_DATA_ERROR; - goto inf_leave; - - default: /* can't happen, but makes compilers happy */ - ret = Z_STREAM_ERROR; - goto inf_leave; - } - - /* Return unused input */ - inf_leave: - strm->next_in = next; - strm->avail_in = have; - return ret; -} - -int ZEXPORT inflateBackEnd(strm) -z_streamp strm; -{ - if (strm == Z_NULL || strm->state == Z_NULL || strm->zfree == (free_func)0) - return Z_STREAM_ERROR; - ZFREE(strm, strm->state); - strm->state = Z_NULL; - Tracev((stderr, "inflate: end\n")); - return Z_OK; -} diff --git a/src/utilfuns/zlib/inffast.c b/src/utilfuns/zlib/inffast.c deleted file mode 100644 index bda59ce..0000000 --- a/src/utilfuns/zlib/inffast.c +++ /dev/null @@ -1,340 +0,0 @@ -/* inffast.c -- fast decoding - * Copyright (C) 1995-2008, 2010, 2013 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -#include "zutil.h" -#include "inftrees.h" -#include "inflate.h" -#include "inffast.h" - -#ifndef ASMINF - -/* Allow machine dependent optimization for post-increment or pre-increment. - Based on testing to date, - Pre-increment preferred for: - - PowerPC G3 (Adler) - - MIPS R5000 (Randers-Pehrson) - Post-increment preferred for: - - none - No measurable difference: - - Pentium III (Anderson) - - M68060 (Nikl) - */ -#ifdef POSTINC -# define OFF 0 -# define PUP(a) *(a)++ -#else -# define OFF 1 -# define PUP(a) *++(a) -#endif - -/* - Decode literal, length, and distance codes and write out the resulting - literal and match bytes until either not enough input or output is - available, an end-of-block is encountered, or a data error is encountered. - When large enough input and output buffers are supplied to inflate(), for - example, a 16K input buffer and a 64K output buffer, more than 95% of the - inflate execution time is spent in this routine. - - Entry assumptions: - - state->mode == LEN - strm->avail_in >= 6 - strm->avail_out >= 258 - start >= strm->avail_out - state->bits < 8 - - On return, state->mode is one of: - - LEN -- ran out of enough output space or enough available input - TYPE -- reached end of block code, inflate() to interpret next block - BAD -- error in block data - - Notes: - - - The maximum input bits used by a length/distance pair is 15 bits for the - length code, 5 bits for the length extra, 15 bits for the distance code, - and 13 bits for the distance extra. This totals 48 bits, or six bytes. - Therefore if strm->avail_in >= 6, then there is enough input to avoid - checking for available input while decoding. - - - The maximum bytes that a single length/distance pair can output is 258 - bytes, which is the maximum length that can be coded. inflate_fast() - requires strm->avail_out >= 258 for each loop to avoid checking for - output space. - */ -void ZLIB_INTERNAL inflate_fast(strm, start) -z_streamp strm; -unsigned start; /* inflate()'s starting value for strm->avail_out */ -{ - struct inflate_state FAR *state; - z_const unsigned char FAR *in; /* local strm->next_in */ - z_const unsigned char FAR *last; /* have enough input while in < last */ - unsigned char FAR *out; /* local strm->next_out */ - unsigned char FAR *beg; /* inflate()'s initial strm->next_out */ - unsigned char FAR *end; /* while out < end, enough space available */ -#ifdef INFLATE_STRICT - unsigned dmax; /* maximum distance from zlib header */ -#endif - unsigned wsize; /* window size or zero if not using window */ - unsigned whave; /* valid bytes in the window */ - unsigned wnext; /* window write index */ - unsigned char FAR *window; /* allocated sliding window, if wsize != 0 */ - unsigned long hold; /* local strm->hold */ - unsigned bits; /* local strm->bits */ - code const FAR *lcode; /* local strm->lencode */ - code const FAR *dcode; /* local strm->distcode */ - unsigned lmask; /* mask for first level of length codes */ - unsigned dmask; /* mask for first level of distance codes */ - code here; /* retrieved table entry */ - unsigned op; /* code bits, operation, extra bits, or */ - /* window position, window bytes to copy */ - unsigned len; /* match length, unused bytes */ - unsigned dist; /* match distance */ - unsigned char FAR *from; /* where to copy match from */ - - /* copy state to local variables */ - state = (struct inflate_state FAR *)strm->state; - in = strm->next_in - OFF; - last = in + (strm->avail_in - 5); - out = strm->next_out - OFF; - beg = out - (start - strm->avail_out); - end = out + (strm->avail_out - 257); -#ifdef INFLATE_STRICT - dmax = state->dmax; -#endif - wsize = state->wsize; - whave = state->whave; - wnext = state->wnext; - window = state->window; - hold = state->hold; - bits = state->bits; - lcode = state->lencode; - dcode = state->distcode; - lmask = (1U << state->lenbits) - 1; - dmask = (1U << state->distbits) - 1; - - /* decode literals and length/distances until end-of-block or not enough - input data or output space */ - do { - if (bits < 15) { - hold += (unsigned long)(PUP(in)) << bits; - bits += 8; - hold += (unsigned long)(PUP(in)) << bits; - bits += 8; - } - here = lcode[hold & lmask]; - dolen: - op = (unsigned)(here.bits); - hold >>= op; - bits -= op; - op = (unsigned)(here.op); - if (op == 0) { /* literal */ - Tracevv((stderr, here.val >= 0x20 && here.val < 0x7f ? - "inflate: literal '%c'\n" : - "inflate: literal 0x%02x\n", here.val)); - PUP(out) = (unsigned char)(here.val); - } - else if (op & 16) { /* length base */ - len = (unsigned)(here.val); - op &= 15; /* number of extra bits */ - if (op) { - if (bits < op) { - hold += (unsigned long)(PUP(in)) << bits; - bits += 8; - } - len += (unsigned)hold & ((1U << op) - 1); - hold >>= op; - bits -= op; - } - Tracevv((stderr, "inflate: length %u\n", len)); - if (bits < 15) { - hold += (unsigned long)(PUP(in)) << bits; - bits += 8; - hold += (unsigned long)(PUP(in)) << bits; - bits += 8; - } - here = dcode[hold & dmask]; - dodist: - op = (unsigned)(here.bits); - hold >>= op; - bits -= op; - op = (unsigned)(here.op); - if (op & 16) { /* distance base */ - dist = (unsigned)(here.val); - op &= 15; /* number of extra bits */ - if (bits < op) { - hold += (unsigned long)(PUP(in)) << bits; - bits += 8; - if (bits < op) { - hold += (unsigned long)(PUP(in)) << bits; - bits += 8; - } - } - dist += (unsigned)hold & ((1U << op) - 1); -#ifdef INFLATE_STRICT - if (dist > dmax) { - strm->msg = (char *)"invalid distance too far back"; - state->mode = BAD; - break; - } -#endif - hold >>= op; - bits -= op; - Tracevv((stderr, "inflate: distance %u\n", dist)); - op = (unsigned)(out - beg); /* max distance in output */ - if (dist > op) { /* see if copy from window */ - op = dist - op; /* distance back in window */ - if (op > whave) { - if (state->sane) { - strm->msg = - (char *)"invalid distance too far back"; - state->mode = BAD; - break; - } -#ifdef INFLATE_ALLOW_INVALID_DISTANCE_TOOFAR_ARRR - if (len <= op - whave) { - do { - PUP(out) = 0; - } while (--len); - continue; - } - len -= op - whave; - do { - PUP(out) = 0; - } while (--op > whave); - if (op == 0) { - from = out - dist; - do { - PUP(out) = PUP(from); - } while (--len); - continue; - } -#endif - } - from = window - OFF; - if (wnext == 0) { /* very common case */ - from += wsize - op; - if (op < len) { /* some from window */ - len -= op; - do { - PUP(out) = PUP(from); - } while (--op); - from = out - dist; /* rest from output */ - } - } - else if (wnext < op) { /* wrap around window */ - from += wsize + wnext - op; - op -= wnext; - if (op < len) { /* some from end of window */ - len -= op; - do { - PUP(out) = PUP(from); - } while (--op); - from = window - OFF; - if (wnext < len) { /* some from start of window */ - op = wnext; - len -= op; - do { - PUP(out) = PUP(from); - } while (--op); - from = out - dist; /* rest from output */ - } - } - } - else { /* contiguous in window */ - from += wnext - op; - if (op < len) { /* some from window */ - len -= op; - do { - PUP(out) = PUP(from); - } while (--op); - from = out - dist; /* rest from output */ - } - } - while (len > 2) { - PUP(out) = PUP(from); - PUP(out) = PUP(from); - PUP(out) = PUP(from); - len -= 3; - } - if (len) { - PUP(out) = PUP(from); - if (len > 1) - PUP(out) = PUP(from); - } - } - else { - from = out - dist; /* copy direct from output */ - do { /* minimum length is three */ - PUP(out) = PUP(from); - PUP(out) = PUP(from); - PUP(out) = PUP(from); - len -= 3; - } while (len > 2); - if (len) { - PUP(out) = PUP(from); - if (len > 1) - PUP(out) = PUP(from); - } - } - } - else if ((op & 64) == 0) { /* 2nd level distance code */ - here = dcode[here.val + (hold & ((1U << op) - 1))]; - goto dodist; - } - else { - strm->msg = (char *)"invalid distance code"; - state->mode = BAD; - break; - } - } - else if ((op & 64) == 0) { /* 2nd level length code */ - here = lcode[here.val + (hold & ((1U << op) - 1))]; - goto dolen; - } - else if (op & 32) { /* end-of-block */ - Tracevv((stderr, "inflate: end of block\n")); - state->mode = TYPE; - break; - } - else { - strm->msg = (char *)"invalid literal/length code"; - state->mode = BAD; - break; - } - } while (in < last && out < end); - - /* return unused bytes (on entry, bits < 8, so in won't go too far back) */ - len = bits >> 3; - in -= len; - bits -= len << 3; - hold &= (1U << bits) - 1; - - /* update state and return */ - strm->next_in = in + OFF; - strm->next_out = out + OFF; - strm->avail_in = (unsigned)(in < last ? 5 + (last - in) : 5 - (in - last)); - strm->avail_out = (unsigned)(out < end ? - 257 + (end - out) : 257 - (out - end)); - state->hold = hold; - state->bits = bits; - return; -} - -/* - inflate_fast() speedups that turned out slower (on a PowerPC G3 750CXe): - - Using bit fields for code structure - - Different op definition to avoid & for extra bits (do & for table bits) - - Three separate decoding do-loops for direct, window, and wnext == 0 - - Special case for distance > 1 copies to do overlapped load and store copy - - Explicit branch predictions (based on measured branch probabilities) - - Deferring match copy and interspersed it with decoding subsequent codes - - Swapping literal/length else - - Swapping window/direct else - - Larger unrolled copy loops (three is about right) - - Moving len -= 3 statement into middle of loop - */ - -#endif /* !ASMINF */ diff --git a/src/utilfuns/zlib/inffast.h b/src/utilfuns/zlib/inffast.h deleted file mode 100644 index e5c1aa4..0000000 --- a/src/utilfuns/zlib/inffast.h +++ /dev/null @@ -1,11 +0,0 @@ -/* inffast.h -- header to use inffast.c - * Copyright (C) 1995-2003, 2010 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* WARNING: this file should *not* be used by applications. It is - part of the implementation of the compression library and is - subject to change. Applications should only use zlib.h. - */ - -void ZLIB_INTERNAL inflate_fast OF((z_streamp strm, unsigned start)); diff --git a/src/utilfuns/zlib/inffixed.h b/src/utilfuns/zlib/inffixed.h deleted file mode 100644 index d628327..0000000 --- a/src/utilfuns/zlib/inffixed.h +++ /dev/null @@ -1,94 +0,0 @@ - /* inffixed.h -- table for decoding fixed codes - * Generated automatically by makefixed(). - */ - - /* WARNING: this file should *not* be used by applications. - It is part of the implementation of this library and is - subject to change. Applications should only use zlib.h. - */ - - static const code lenfix[512] = { - {96,7,0},{0,8,80},{0,8,16},{20,8,115},{18,7,31},{0,8,112},{0,8,48}, - {0,9,192},{16,7,10},{0,8,96},{0,8,32},{0,9,160},{0,8,0},{0,8,128}, - {0,8,64},{0,9,224},{16,7,6},{0,8,88},{0,8,24},{0,9,144},{19,7,59}, - {0,8,120},{0,8,56},{0,9,208},{17,7,17},{0,8,104},{0,8,40},{0,9,176}, - {0,8,8},{0,8,136},{0,8,72},{0,9,240},{16,7,4},{0,8,84},{0,8,20}, - {21,8,227},{19,7,43},{0,8,116},{0,8,52},{0,9,200},{17,7,13},{0,8,100}, - {0,8,36},{0,9,168},{0,8,4},{0,8,132},{0,8,68},{0,9,232},{16,7,8}, - {0,8,92},{0,8,28},{0,9,152},{20,7,83},{0,8,124},{0,8,60},{0,9,216}, - {18,7,23},{0,8,108},{0,8,44},{0,9,184},{0,8,12},{0,8,140},{0,8,76}, - {0,9,248},{16,7,3},{0,8,82},{0,8,18},{21,8,163},{19,7,35},{0,8,114}, - {0,8,50},{0,9,196},{17,7,11},{0,8,98},{0,8,34},{0,9,164},{0,8,2}, - {0,8,130},{0,8,66},{0,9,228},{16,7,7},{0,8,90},{0,8,26},{0,9,148}, - {20,7,67},{0,8,122},{0,8,58},{0,9,212},{18,7,19},{0,8,106},{0,8,42}, - {0,9,180},{0,8,10},{0,8,138},{0,8,74},{0,9,244},{16,7,5},{0,8,86}, - {0,8,22},{64,8,0},{19,7,51},{0,8,118},{0,8,54},{0,9,204},{17,7,15}, - {0,8,102},{0,8,38},{0,9,172},{0,8,6},{0,8,134},{0,8,70},{0,9,236}, - {16,7,9},{0,8,94},{0,8,30},{0,9,156},{20,7,99},{0,8,126},{0,8,62}, - {0,9,220},{18,7,27},{0,8,110},{0,8,46},{0,9,188},{0,8,14},{0,8,142}, - {0,8,78},{0,9,252},{96,7,0},{0,8,81},{0,8,17},{21,8,131},{18,7,31}, - {0,8,113},{0,8,49},{0,9,194},{16,7,10},{0,8,97},{0,8,33},{0,9,162}, - {0,8,1},{0,8,129},{0,8,65},{0,9,226},{16,7,6},{0,8,89},{0,8,25}, - {0,9,146},{19,7,59},{0,8,121},{0,8,57},{0,9,210},{17,7,17},{0,8,105}, - {0,8,41},{0,9,178},{0,8,9},{0,8,137},{0,8,73},{0,9,242},{16,7,4}, - {0,8,85},{0,8,21},{16,8,258},{19,7,43},{0,8,117},{0,8,53},{0,9,202}, - {17,7,13},{0,8,101},{0,8,37},{0,9,170},{0,8,5},{0,8,133},{0,8,69}, - {0,9,234},{16,7,8},{0,8,93},{0,8,29},{0,9,154},{20,7,83},{0,8,125}, - {0,8,61},{0,9,218},{18,7,23},{0,8,109},{0,8,45},{0,9,186},{0,8,13}, - {0,8,141},{0,8,77},{0,9,250},{16,7,3},{0,8,83},{0,8,19},{21,8,195}, - {19,7,35},{0,8,115},{0,8,51},{0,9,198},{17,7,11},{0,8,99},{0,8,35}, - {0,9,166},{0,8,3},{0,8,131},{0,8,67},{0,9,230},{16,7,7},{0,8,91}, - {0,8,27},{0,9,150},{20,7,67},{0,8,123},{0,8,59},{0,9,214},{18,7,19}, - {0,8,107},{0,8,43},{0,9,182},{0,8,11},{0,8,139},{0,8,75},{0,9,246}, - {16,7,5},{0,8,87},{0,8,23},{64,8,0},{19,7,51},{0,8,119},{0,8,55}, - {0,9,206},{17,7,15},{0,8,103},{0,8,39},{0,9,174},{0,8,7},{0,8,135}, - {0,8,71},{0,9,238},{16,7,9},{0,8,95},{0,8,31},{0,9,158},{20,7,99}, - {0,8,127},{0,8,63},{0,9,222},{18,7,27},{0,8,111},{0,8,47},{0,9,190}, - {0,8,15},{0,8,143},{0,8,79},{0,9,254},{96,7,0},{0,8,80},{0,8,16}, - {20,8,115},{18,7,31},{0,8,112},{0,8,48},{0,9,193},{16,7,10},{0,8,96}, - {0,8,32},{0,9,161},{0,8,0},{0,8,128},{0,8,64},{0,9,225},{16,7,6}, - {0,8,88},{0,8,24},{0,9,145},{19,7,59},{0,8,120},{0,8,56},{0,9,209}, - {17,7,17},{0,8,104},{0,8,40},{0,9,177},{0,8,8},{0,8,136},{0,8,72}, - {0,9,241},{16,7,4},{0,8,84},{0,8,20},{21,8,227},{19,7,43},{0,8,116}, - {0,8,52},{0,9,201},{17,7,13},{0,8,100},{0,8,36},{0,9,169},{0,8,4}, - {0,8,132},{0,8,68},{0,9,233},{16,7,8},{0,8,92},{0,8,28},{0,9,153}, - {20,7,83},{0,8,124},{0,8,60},{0,9,217},{18,7,23},{0,8,108},{0,8,44}, - {0,9,185},{0,8,12},{0,8,140},{0,8,76},{0,9,249},{16,7,3},{0,8,82}, - {0,8,18},{21,8,163},{19,7,35},{0,8,114},{0,8,50},{0,9,197},{17,7,11}, - {0,8,98},{0,8,34},{0,9,165},{0,8,2},{0,8,130},{0,8,66},{0,9,229}, - {16,7,7},{0,8,90},{0,8,26},{0,9,149},{20,7,67},{0,8,122},{0,8,58}, - {0,9,213},{18,7,19},{0,8,106},{0,8,42},{0,9,181},{0,8,10},{0,8,138}, - {0,8,74},{0,9,245},{16,7,5},{0,8,86},{0,8,22},{64,8,0},{19,7,51}, - {0,8,118},{0,8,54},{0,9,205},{17,7,15},{0,8,102},{0,8,38},{0,9,173}, - {0,8,6},{0,8,134},{0,8,70},{0,9,237},{16,7,9},{0,8,94},{0,8,30}, - {0,9,157},{20,7,99},{0,8,126},{0,8,62},{0,9,221},{18,7,27},{0,8,110}, - {0,8,46},{0,9,189},{0,8,14},{0,8,142},{0,8,78},{0,9,253},{96,7,0}, - {0,8,81},{0,8,17},{21,8,131},{18,7,31},{0,8,113},{0,8,49},{0,9,195}, - {16,7,10},{0,8,97},{0,8,33},{0,9,163},{0,8,1},{0,8,129},{0,8,65}, - {0,9,227},{16,7,6},{0,8,89},{0,8,25},{0,9,147},{19,7,59},{0,8,121}, - {0,8,57},{0,9,211},{17,7,17},{0,8,105},{0,8,41},{0,9,179},{0,8,9}, - {0,8,137},{0,8,73},{0,9,243},{16,7,4},{0,8,85},{0,8,21},{16,8,258}, - {19,7,43},{0,8,117},{0,8,53},{0,9,203},{17,7,13},{0,8,101},{0,8,37}, - {0,9,171},{0,8,5},{0,8,133},{0,8,69},{0,9,235},{16,7,8},{0,8,93}, - {0,8,29},{0,9,155},{20,7,83},{0,8,125},{0,8,61},{0,9,219},{18,7,23}, - {0,8,109},{0,8,45},{0,9,187},{0,8,13},{0,8,141},{0,8,77},{0,9,251}, - {16,7,3},{0,8,83},{0,8,19},{21,8,195},{19,7,35},{0,8,115},{0,8,51}, - {0,9,199},{17,7,11},{0,8,99},{0,8,35},{0,9,167},{0,8,3},{0,8,131}, - {0,8,67},{0,9,231},{16,7,7},{0,8,91},{0,8,27},{0,9,151},{20,7,67}, - {0,8,123},{0,8,59},{0,9,215},{18,7,19},{0,8,107},{0,8,43},{0,9,183}, - {0,8,11},{0,8,139},{0,8,75},{0,9,247},{16,7,5},{0,8,87},{0,8,23}, - {64,8,0},{19,7,51},{0,8,119},{0,8,55},{0,9,207},{17,7,15},{0,8,103}, - {0,8,39},{0,9,175},{0,8,7},{0,8,135},{0,8,71},{0,9,239},{16,7,9}, - {0,8,95},{0,8,31},{0,9,159},{20,7,99},{0,8,127},{0,8,63},{0,9,223}, - {18,7,27},{0,8,111},{0,8,47},{0,9,191},{0,8,15},{0,8,143},{0,8,79}, - {0,9,255} - }; - - static const code distfix[32] = { - {16,5,1},{23,5,257},{19,5,17},{27,5,4097},{17,5,5},{25,5,1025}, - {21,5,65},{29,5,16385},{16,5,3},{24,5,513},{20,5,33},{28,5,8193}, - {18,5,9},{26,5,2049},{22,5,129},{64,5,0},{16,5,2},{23,5,385}, - {19,5,25},{27,5,6145},{17,5,7},{25,5,1537},{21,5,97},{29,5,24577}, - {16,5,4},{24,5,769},{20,5,49},{28,5,12289},{18,5,13},{26,5,3073}, - {22,5,193},{64,5,0} - }; diff --git a/src/utilfuns/zlib/inflate.c b/src/utilfuns/zlib/inflate.c deleted file mode 100644 index 870f89b..0000000 --- a/src/utilfuns/zlib/inflate.c +++ /dev/null @@ -1,1512 +0,0 @@ -/* inflate.c -- zlib decompression - * Copyright (C) 1995-2012 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* - * Change history: - * - * 1.2.beta0 24 Nov 2002 - * - First version -- complete rewrite of inflate to simplify code, avoid - * creation of window when not needed, minimize use of window when it is - * needed, make inffast.c even faster, implement gzip decoding, and to - * improve code readability and style over the previous zlib inflate code - * - * 1.2.beta1 25 Nov 2002 - * - Use pointers for available input and output checking in inffast.c - * - Remove input and output counters in inffast.c - * - Change inffast.c entry and loop from avail_in >= 7 to >= 6 - * - Remove unnecessary second byte pull from length extra in inffast.c - * - Unroll direct copy to three copies per loop in inffast.c - * - * 1.2.beta2 4 Dec 2002 - * - Change external routine names to reduce potential conflicts - * - Correct filename to inffixed.h for fixed tables in inflate.c - * - Make hbuf[] unsigned char to match parameter type in inflate.c - * - Change strm->next_out[-state->offset] to *(strm->next_out - state->offset) - * to avoid negation problem on Alphas (64 bit) in inflate.c - * - * 1.2.beta3 22 Dec 2002 - * - Add comments on state->bits assertion in inffast.c - * - Add comments on op field in inftrees.h - * - Fix bug in reuse of allocated window after inflateReset() - * - Remove bit fields--back to byte structure for speed - * - Remove distance extra == 0 check in inflate_fast()--only helps for lengths - * - Change post-increments to pre-increments in inflate_fast(), PPC biased? - * - Add compile time option, POSTINC, to use post-increments instead (Intel?) - * - Make MATCH copy in inflate() much faster for when inflate_fast() not used - * - Use local copies of stream next and avail values, as well as local bit - * buffer and bit count in inflate()--for speed when inflate_fast() not used - * - * 1.2.beta4 1 Jan 2003 - * - Split ptr - 257 statements in inflate_table() to avoid compiler warnings - * - Move a comment on output buffer sizes from inffast.c to inflate.c - * - Add comments in inffast.c to introduce the inflate_fast() routine - * - Rearrange window copies in inflate_fast() for speed and simplification - * - Unroll last copy for window match in inflate_fast() - * - Use local copies of window variables in inflate_fast() for speed - * - Pull out common wnext == 0 case for speed in inflate_fast() - * - Make op and len in inflate_fast() unsigned for consistency - * - Add FAR to lcode and dcode declarations in inflate_fast() - * - Simplified bad distance check in inflate_fast() - * - Added inflateBackInit(), inflateBack(), and inflateBackEnd() in new - * source file infback.c to provide a call-back interface to inflate for - * programs like gzip and unzip -- uses window as output buffer to avoid - * window copying - * - * 1.2.beta5 1 Jan 2003 - * - Improved inflateBack() interface to allow the caller to provide initial - * input in strm. - * - Fixed stored blocks bug in inflateBack() - * - * 1.2.beta6 4 Jan 2003 - * - Added comments in inffast.c on effectiveness of POSTINC - * - Typecasting all around to reduce compiler warnings - * - Changed loops from while (1) or do {} while (1) to for (;;), again to - * make compilers happy - * - Changed type of window in inflateBackInit() to unsigned char * - * - * 1.2.beta7 27 Jan 2003 - * - Changed many types to unsigned or unsigned short to avoid warnings - * - Added inflateCopy() function - * - * 1.2.0 9 Mar 2003 - * - Changed inflateBack() interface to provide separate opaque descriptors - * for the in() and out() functions - * - Changed inflateBack() argument and in_func typedef to swap the length - * and buffer address return values for the input function - * - Check next_in and next_out for Z_NULL on entry to inflate() - * - * The history for versions after 1.2.0 are in ChangeLog in zlib distribution. - */ - -#include "zutil.h" -#include "inftrees.h" -#include "inflate.h" -#include "inffast.h" - -#ifdef MAKEFIXED -# ifndef BUILDFIXED -# define BUILDFIXED -# endif -#endif - -/* function prototypes */ -local void fixedtables OF((struct inflate_state FAR *state)); -local int updatewindow OF((z_streamp strm, const unsigned char FAR *end, - unsigned copy)); -#ifdef BUILDFIXED - void makefixed OF((void)); -#endif -local unsigned syncsearch OF((unsigned FAR *have, const unsigned char FAR *buf, - unsigned len)); - -int ZEXPORT inflateResetKeep(strm) -z_streamp strm; -{ - struct inflate_state FAR *state; - - if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; - state = (struct inflate_state FAR *)strm->state; - strm->total_in = strm->total_out = state->total = 0; - strm->msg = Z_NULL; - if (state->wrap) /* to support ill-conceived Java test suite */ - strm->adler = state->wrap & 1; - state->mode = HEAD; - state->last = 0; - state->havedict = 0; - state->dmax = 32768U; - state->head = Z_NULL; - state->hold = 0; - state->bits = 0; - state->lencode = state->distcode = state->next = state->codes; - state->sane = 1; - state->back = -1; - Tracev((stderr, "inflate: reset\n")); - return Z_OK; -} - -int ZEXPORT inflateReset(strm) -z_streamp strm; -{ - struct inflate_state FAR *state; - - if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; - state = (struct inflate_state FAR *)strm->state; - state->wsize = 0; - state->whave = 0; - state->wnext = 0; - return inflateResetKeep(strm); -} - -int ZEXPORT inflateReset2(strm, windowBits) -z_streamp strm; -int windowBits; -{ - int wrap; - struct inflate_state FAR *state; - - /* get the state */ - if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; - state = (struct inflate_state FAR *)strm->state; - - /* extract wrap request from windowBits parameter */ - if (windowBits < 0) { - wrap = 0; - windowBits = -windowBits; - } - else { - wrap = (windowBits >> 4) + 1; -#ifdef GUNZIP - if (windowBits < 48) - windowBits &= 15; -#endif - } - - /* set number of window bits, free window if different */ - if (windowBits && (windowBits < 8 || windowBits > 15)) - return Z_STREAM_ERROR; - if (state->window != Z_NULL && state->wbits != (unsigned)windowBits) { - ZFREE(strm, state->window); - state->window = Z_NULL; - } - - /* update state and reset the rest of it */ - state->wrap = wrap; - state->wbits = (unsigned)windowBits; - return inflateReset(strm); -} - -int ZEXPORT inflateInit2_(strm, windowBits, version, stream_size) -z_streamp strm; -int windowBits; -const char *version; -int stream_size; -{ - int ret; - struct inflate_state FAR *state; - - if (version == Z_NULL || version[0] != ZLIB_VERSION[0] || - stream_size != (int)(sizeof(z_stream))) - return Z_VERSION_ERROR; - if (strm == Z_NULL) return Z_STREAM_ERROR; - strm->msg = Z_NULL; /* in case we return an error */ - if (strm->zalloc == (alloc_func)0) { -#ifdef Z_SOLO - return Z_STREAM_ERROR; -#else - strm->zalloc = zcalloc; - strm->opaque = (voidpf)0; -#endif - } - if (strm->zfree == (free_func)0) -#ifdef Z_SOLO - return Z_STREAM_ERROR; -#else - strm->zfree = zcfree; -#endif - state = (struct inflate_state FAR *) - ZALLOC(strm, 1, sizeof(struct inflate_state)); - if (state == Z_NULL) return Z_MEM_ERROR; - Tracev((stderr, "inflate: allocated\n")); - strm->state = (struct internal_state FAR *)state; - state->window = Z_NULL; - ret = inflateReset2(strm, windowBits); - if (ret != Z_OK) { - ZFREE(strm, state); - strm->state = Z_NULL; - } - return ret; -} - -int ZEXPORT inflateInit_(strm, version, stream_size) -z_streamp strm; -const char *version; -int stream_size; -{ - return inflateInit2_(strm, DEF_WBITS, version, stream_size); -} - -int ZEXPORT inflatePrime(strm, bits, value) -z_streamp strm; -int bits; -int value; -{ - struct inflate_state FAR *state; - - if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; - state = (struct inflate_state FAR *)strm->state; - if (bits < 0) { - state->hold = 0; - state->bits = 0; - return Z_OK; - } - if (bits > 16 || state->bits + bits > 32) return Z_STREAM_ERROR; - value &= (1L << bits) - 1; - state->hold += value << state->bits; - state->bits += bits; - return Z_OK; -} - -/* - Return state with length and distance decoding tables and index sizes set to - fixed code decoding. Normally this returns fixed tables from inffixed.h. - If BUILDFIXED is defined, then instead this routine builds the tables the - first time it's called, and returns those tables the first time and - thereafter. This reduces the size of the code by about 2K bytes, in - exchange for a little execution time. However, BUILDFIXED should not be - used for threaded applications, since the rewriting of the tables and virgin - may not be thread-safe. - */ -local void fixedtables(state) -struct inflate_state FAR *state; -{ -#ifdef BUILDFIXED - static int virgin = 1; - static code *lenfix, *distfix; - static code fixed[544]; - - /* build fixed huffman tables if first call (may not be thread safe) */ - if (virgin) { - unsigned sym, bits; - static code *next; - - /* literal/length table */ - sym = 0; - while (sym < 144) state->lens[sym++] = 8; - while (sym < 256) state->lens[sym++] = 9; - while (sym < 280) state->lens[sym++] = 7; - while (sym < 288) state->lens[sym++] = 8; - next = fixed; - lenfix = next; - bits = 9; - inflate_table(LENS, state->lens, 288, &(next), &(bits), state->work); - - /* distance table */ - sym = 0; - while (sym < 32) state->lens[sym++] = 5; - distfix = next; - bits = 5; - inflate_table(DISTS, state->lens, 32, &(next), &(bits), state->work); - - /* do this just once */ - virgin = 0; - } -#else /* !BUILDFIXED */ -# include "inffixed.h" -#endif /* BUILDFIXED */ - state->lencode = lenfix; - state->lenbits = 9; - state->distcode = distfix; - state->distbits = 5; -} - -#ifdef MAKEFIXED -#include <stdio.h> - -/* - Write out the inffixed.h that is #include'd above. Defining MAKEFIXED also - defines BUILDFIXED, so the tables are built on the fly. makefixed() writes - those tables to stdout, which would be piped to inffixed.h. A small program - can simply call makefixed to do this: - - void makefixed(void); - - int main(void) - { - makefixed(); - return 0; - } - - Then that can be linked with zlib built with MAKEFIXED defined and run: - - a.out > inffixed.h - */ -void makefixed() -{ - unsigned low, size; - struct inflate_state state; - - fixedtables(&state); - puts(" /* inffixed.h -- table for decoding fixed codes"); - puts(" * Generated automatically by makefixed()."); - puts(" */"); - puts(""); - puts(" /* WARNING: this file should *not* be used by applications."); - puts(" It is part of the implementation of this library and is"); - puts(" subject to change. Applications should only use zlib.h."); - puts(" */"); - puts(""); - size = 1U << 9; - printf(" static const code lenfix[%u] = {", size); - low = 0; - for (;;) { - if ((low % 7) == 0) printf("\n "); - printf("{%u,%u,%d}", (low & 127) == 99 ? 64 : state.lencode[low].op, - state.lencode[low].bits, state.lencode[low].val); - if (++low == size) break; - putchar(','); - } - puts("\n };"); - size = 1U << 5; - printf("\n static const code distfix[%u] = {", size); - low = 0; - for (;;) { - if ((low % 6) == 0) printf("\n "); - printf("{%u,%u,%d}", state.distcode[low].op, state.distcode[low].bits, - state.distcode[low].val); - if (++low == size) break; - putchar(','); - } - puts("\n };"); -} -#endif /* MAKEFIXED */ - -/* - Update the window with the last wsize (normally 32K) bytes written before - returning. If window does not exist yet, create it. This is only called - when a window is already in use, or when output has been written during this - inflate call, but the end of the deflate stream has not been reached yet. - It is also called to create a window for dictionary data when a dictionary - is loaded. - - Providing output buffers larger than 32K to inflate() should provide a speed - advantage, since only the last 32K of output is copied to the sliding window - upon return from inflate(), and since all distances after the first 32K of - output will fall in the output data, making match copies simpler and faster. - The advantage may be dependent on the size of the processor's data caches. - */ -local int updatewindow(strm, end, copy) -z_streamp strm; -const Bytef *end; -unsigned copy; -{ - struct inflate_state FAR *state; - unsigned dist; - - state = (struct inflate_state FAR *)strm->state; - - /* if it hasn't been done already, allocate space for the window */ - if (state->window == Z_NULL) { - state->window = (unsigned char FAR *) - ZALLOC(strm, 1U << state->wbits, - sizeof(unsigned char)); - if (state->window == Z_NULL) return 1; - } - - /* if window not in use yet, initialize */ - if (state->wsize == 0) { - state->wsize = 1U << state->wbits; - state->wnext = 0; - state->whave = 0; - } - - /* copy state->wsize or less output bytes into the circular window */ - if (copy >= state->wsize) { - zmemcpy(state->window, end - state->wsize, state->wsize); - state->wnext = 0; - state->whave = state->wsize; - } - else { - dist = state->wsize - state->wnext; - if (dist > copy) dist = copy; - zmemcpy(state->window + state->wnext, end - copy, dist); - copy -= dist; - if (copy) { - zmemcpy(state->window, end - copy, copy); - state->wnext = copy; - state->whave = state->wsize; - } - else { - state->wnext += dist; - if (state->wnext == state->wsize) state->wnext = 0; - if (state->whave < state->wsize) state->whave += dist; - } - } - return 0; -} - -/* Macros for inflate(): */ - -/* check function to use adler32() for zlib or crc32() for gzip */ -#ifdef GUNZIP -# define UPDATE(check, buf, len) \ - (state->flags ? crc32(check, buf, len) : adler32(check, buf, len)) -#else -# define UPDATE(check, buf, len) adler32(check, buf, len) -#endif - -/* check macros for header crc */ -#ifdef GUNZIP -# define CRC2(check, word) \ - do { \ - hbuf[0] = (unsigned char)(word); \ - hbuf[1] = (unsigned char)((word) >> 8); \ - check = crc32(check, hbuf, 2); \ - } while (0) - -# define CRC4(check, word) \ - do { \ - hbuf[0] = (unsigned char)(word); \ - hbuf[1] = (unsigned char)((word) >> 8); \ - hbuf[2] = (unsigned char)((word) >> 16); \ - hbuf[3] = (unsigned char)((word) >> 24); \ - check = crc32(check, hbuf, 4); \ - } while (0) -#endif - -/* Load registers with state in inflate() for speed */ -#define LOAD() \ - do { \ - put = strm->next_out; \ - left = strm->avail_out; \ - next = strm->next_in; \ - have = strm->avail_in; \ - hold = state->hold; \ - bits = state->bits; \ - } while (0) - -/* Restore state from registers in inflate() */ -#define RESTORE() \ - do { \ - strm->next_out = put; \ - strm->avail_out = left; \ - strm->next_in = next; \ - strm->avail_in = have; \ - state->hold = hold; \ - state->bits = bits; \ - } while (0) - -/* Clear the input bit accumulator */ -#define INITBITS() \ - do { \ - hold = 0; \ - bits = 0; \ - } while (0) - -/* Get a byte of input into the bit accumulator, or return from inflate() - if there is no input available. */ -#define PULLBYTE() \ - do { \ - if (have == 0) goto inf_leave; \ - have--; \ - hold += (unsigned long)(*next++) << bits; \ - bits += 8; \ - } while (0) - -/* Assure that there are at least n bits in the bit accumulator. If there is - not enough available input to do that, then return from inflate(). */ -#define NEEDBITS(n) \ - do { \ - while (bits < (unsigned)(n)) \ - PULLBYTE(); \ - } while (0) - -/* Return the low n bits of the bit accumulator (n < 16) */ -#define BITS(n) \ - ((unsigned)hold & ((1U << (n)) - 1)) - -/* Remove n bits from the bit accumulator */ -#define DROPBITS(n) \ - do { \ - hold >>= (n); \ - bits -= (unsigned)(n); \ - } while (0) - -/* Remove zero to seven bits as needed to go to a byte boundary */ -#define BYTEBITS() \ - do { \ - hold >>= bits & 7; \ - bits -= bits & 7; \ - } while (0) - -/* - inflate() uses a state machine to process as much input data and generate as - much output data as possible before returning. The state machine is - structured roughly as follows: - - for (;;) switch (state) { - ... - case STATEn: - if (not enough input data or output space to make progress) - return; - ... make progress ... - state = STATEm; - break; - ... - } - - so when inflate() is called again, the same case is attempted again, and - if the appropriate resources are provided, the machine proceeds to the - next state. The NEEDBITS() macro is usually the way the state evaluates - whether it can proceed or should return. NEEDBITS() does the return if - the requested bits are not available. The typical use of the BITS macros - is: - - NEEDBITS(n); - ... do something with BITS(n) ... - DROPBITS(n); - - where NEEDBITS(n) either returns from inflate() if there isn't enough - input left to load n bits into the accumulator, or it continues. BITS(n) - gives the low n bits in the accumulator. When done, DROPBITS(n) drops - the low n bits off the accumulator. INITBITS() clears the accumulator - and sets the number of available bits to zero. BYTEBITS() discards just - enough bits to put the accumulator on a byte boundary. After BYTEBITS() - and a NEEDBITS(8), then BITS(8) would return the next byte in the stream. - - NEEDBITS(n) uses PULLBYTE() to get an available byte of input, or to return - if there is no input available. The decoding of variable length codes uses - PULLBYTE() directly in order to pull just enough bytes to decode the next - code, and no more. - - Some states loop until they get enough input, making sure that enough - state information is maintained to continue the loop where it left off - if NEEDBITS() returns in the loop. For example, want, need, and keep - would all have to actually be part of the saved state in case NEEDBITS() - returns: - - case STATEw: - while (want < need) { - NEEDBITS(n); - keep[want++] = BITS(n); - DROPBITS(n); - } - state = STATEx; - case STATEx: - - As shown above, if the next state is also the next case, then the break - is omitted. - - A state may also return if there is not enough output space available to - complete that state. Those states are copying stored data, writing a - literal byte, and copying a matching string. - - When returning, a "goto inf_leave" is used to update the total counters, - update the check value, and determine whether any progress has been made - during that inflate() call in order to return the proper return code. - Progress is defined as a change in either strm->avail_in or strm->avail_out. - When there is a window, goto inf_leave will update the window with the last - output written. If a goto inf_leave occurs in the middle of decompression - and there is no window currently, goto inf_leave will create one and copy - output to the window for the next call of inflate(). - - In this implementation, the flush parameter of inflate() only affects the - return code (per zlib.h). inflate() always writes as much as possible to - strm->next_out, given the space available and the provided input--the effect - documented in zlib.h of Z_SYNC_FLUSH. Furthermore, inflate() always defers - the allocation of and copying into a sliding window until necessary, which - provides the effect documented in zlib.h for Z_FINISH when the entire input - stream available. So the only thing the flush parameter actually does is: - when flush is set to Z_FINISH, inflate() cannot return Z_OK. Instead it - will return Z_BUF_ERROR if it has not reached the end of the stream. - */ - -int ZEXPORT inflate(strm, flush) -z_streamp strm; -int flush; -{ - struct inflate_state FAR *state; - z_const unsigned char FAR *next; /* next input */ - unsigned char FAR *put; /* next output */ - unsigned have, left; /* available input and output */ - unsigned long hold; /* bit buffer */ - unsigned bits; /* bits in bit buffer */ - unsigned in, out; /* save starting available input and output */ - unsigned copy; /* number of stored or match bytes to copy */ - unsigned char FAR *from; /* where to copy match bytes from */ - code here; /* current decoding table entry */ - code last; /* parent table entry */ - unsigned len; /* length to copy for repeats, bits to drop */ - int ret; /* return code */ -#ifdef GUNZIP - unsigned char hbuf[4]; /* buffer for gzip header crc calculation */ -#endif - static const unsigned short order[19] = /* permutation of code lengths */ - {16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15}; - - if (strm == Z_NULL || strm->state == Z_NULL || strm->next_out == Z_NULL || - (strm->next_in == Z_NULL && strm->avail_in != 0)) - return Z_STREAM_ERROR; - - state = (struct inflate_state FAR *)strm->state; - if (state->mode == TYPE) state->mode = TYPEDO; /* skip check */ - LOAD(); - in = have; - out = left; - ret = Z_OK; - for (;;) - switch (state->mode) { - case HEAD: - if (state->wrap == 0) { - state->mode = TYPEDO; - break; - } - NEEDBITS(16); -#ifdef GUNZIP - if ((state->wrap & 2) && hold == 0x8b1f) { /* gzip header */ - state->check = crc32(0L, Z_NULL, 0); - CRC2(state->check, hold); - INITBITS(); - state->mode = FLAGS; - break; - } - state->flags = 0; /* expect zlib header */ - if (state->head != Z_NULL) - state->head->done = -1; - if (!(state->wrap & 1) || /* check if zlib header allowed */ -#else - if ( -#endif - ((BITS(8) << 8) + (hold >> 8)) % 31) { - strm->msg = (char *)"incorrect header check"; - state->mode = BAD; - break; - } - if (BITS(4) != Z_DEFLATED) { - strm->msg = (char *)"unknown compression method"; - state->mode = BAD; - break; - } - DROPBITS(4); - len = BITS(4) + 8; - if (state->wbits == 0) - state->wbits = len; - else if (len > state->wbits) { - strm->msg = (char *)"invalid window size"; - state->mode = BAD; - break; - } - state->dmax = 1U << len; - Tracev((stderr, "inflate: zlib header ok\n")); - strm->adler = state->check = adler32(0L, Z_NULL, 0); - state->mode = hold & 0x200 ? DICTID : TYPE; - INITBITS(); - break; -#ifdef GUNZIP - case FLAGS: - NEEDBITS(16); - state->flags = (int)(hold); - if ((state->flags & 0xff) != Z_DEFLATED) { - strm->msg = (char *)"unknown compression method"; - state->mode = BAD; - break; - } - if (state->flags & 0xe000) { - strm->msg = (char *)"unknown header flags set"; - state->mode = BAD; - break; - } - if (state->head != Z_NULL) - state->head->text = (int)((hold >> 8) & 1); - if (state->flags & 0x0200) CRC2(state->check, hold); - INITBITS(); - state->mode = TIME; - case TIME: - NEEDBITS(32); - if (state->head != Z_NULL) - state->head->time = hold; - if (state->flags & 0x0200) CRC4(state->check, hold); - INITBITS(); - state->mode = OS; - case OS: - NEEDBITS(16); - if (state->head != Z_NULL) { - state->head->xflags = (int)(hold & 0xff); - state->head->os = (int)(hold >> 8); - } - if (state->flags & 0x0200) CRC2(state->check, hold); - INITBITS(); - state->mode = EXLEN; - case EXLEN: - if (state->flags & 0x0400) { - NEEDBITS(16); - state->length = (unsigned)(hold); - if (state->head != Z_NULL) - state->head->extra_len = (unsigned)hold; - if (state->flags & 0x0200) CRC2(state->check, hold); - INITBITS(); - } - else if (state->head != Z_NULL) - state->head->extra = Z_NULL; - state->mode = EXTRA; - case EXTRA: - if (state->flags & 0x0400) { - copy = state->length; - if (copy > have) copy = have; - if (copy) { - if (state->head != Z_NULL && - state->head->extra != Z_NULL) { - len = state->head->extra_len - state->length; - zmemcpy(state->head->extra + len, next, - len + copy > state->head->extra_max ? - state->head->extra_max - len : copy); - } - if (state->flags & 0x0200) - state->check = crc32(state->check, next, copy); - have -= copy; - next += copy; - state->length -= copy; - } - if (state->length) goto inf_leave; - } - state->length = 0; - state->mode = NAME; - case NAME: - if (state->flags & 0x0800) { - if (have == 0) goto inf_leave; - copy = 0; - do { - len = (unsigned)(next[copy++]); - if (state->head != Z_NULL && - state->head->name != Z_NULL && - state->length < state->head->name_max) - state->head->name[state->length++] = len; - } while (len && copy < have); - if (state->flags & 0x0200) - state->check = crc32(state->check, next, copy); - have -= copy; - next += copy; - if (len) goto inf_leave; - } - else if (state->head != Z_NULL) - state->head->name = Z_NULL; - state->length = 0; - state->mode = COMMENT; - case COMMENT: - if (state->flags & 0x1000) { - if (have == 0) goto inf_leave; - copy = 0; - do { - len = (unsigned)(next[copy++]); - if (state->head != Z_NULL && - state->head->comment != Z_NULL && - state->length < state->head->comm_max) - state->head->comment[state->length++] = len; - } while (len && copy < have); - if (state->flags & 0x0200) - state->check = crc32(state->check, next, copy); - have -= copy; - next += copy; - if (len) goto inf_leave; - } - else if (state->head != Z_NULL) - state->head->comment = Z_NULL; - state->mode = HCRC; - case HCRC: - if (state->flags & 0x0200) { - NEEDBITS(16); - if (hold != (state->check & 0xffff)) { - strm->msg = (char *)"header crc mismatch"; - state->mode = BAD; - break; - } - INITBITS(); - } - if (state->head != Z_NULL) { - state->head->hcrc = (int)((state->flags >> 9) & 1); - state->head->done = 1; - } - strm->adler = state->check = crc32(0L, Z_NULL, 0); - state->mode = TYPE; - break; -#endif - case DICTID: - NEEDBITS(32); - strm->adler = state->check = ZSWAP32(hold); - INITBITS(); - state->mode = DICT; - case DICT: - if (state->havedict == 0) { - RESTORE(); - return Z_NEED_DICT; - } - strm->adler = state->check = adler32(0L, Z_NULL, 0); - state->mode = TYPE; - case TYPE: - if (flush == Z_BLOCK || flush == Z_TREES) goto inf_leave; - case TYPEDO: - if (state->last) { - BYTEBITS(); - state->mode = CHECK; - break; - } - NEEDBITS(3); - state->last = BITS(1); - DROPBITS(1); - switch (BITS(2)) { - case 0: /* stored block */ - Tracev((stderr, "inflate: stored block%s\n", - state->last ? " (last)" : "")); - state->mode = STORED; - break; - case 1: /* fixed block */ - fixedtables(state); - Tracev((stderr, "inflate: fixed codes block%s\n", - state->last ? " (last)" : "")); - state->mode = LEN_; /* decode codes */ - if (flush == Z_TREES) { - DROPBITS(2); - goto inf_leave; - } - break; - case 2: /* dynamic block */ - Tracev((stderr, "inflate: dynamic codes block%s\n", - state->last ? " (last)" : "")); - state->mode = TABLE; - break; - case 3: - strm->msg = (char *)"invalid block type"; - state->mode = BAD; - } - DROPBITS(2); - break; - case STORED: - BYTEBITS(); /* go to byte boundary */ - NEEDBITS(32); - if ((hold & 0xffff) != ((hold >> 16) ^ 0xffff)) { - strm->msg = (char *)"invalid stored block lengths"; - state->mode = BAD; - break; - } - state->length = (unsigned)hold & 0xffff; - Tracev((stderr, "inflate: stored length %u\n", - state->length)); - INITBITS(); - state->mode = COPY_; - if (flush == Z_TREES) goto inf_leave; - case COPY_: - state->mode = COPY; - case COPY: - copy = state->length; - if (copy) { - if (copy > have) copy = have; - if (copy > left) copy = left; - if (copy == 0) goto inf_leave; - zmemcpy(put, next, copy); - have -= copy; - next += copy; - left -= copy; - put += copy; - state->length -= copy; - break; - } - Tracev((stderr, "inflate: stored end\n")); - state->mode = TYPE; - break; - case TABLE: - NEEDBITS(14); - state->nlen = BITS(5) + 257; - DROPBITS(5); - state->ndist = BITS(5) + 1; - DROPBITS(5); - state->ncode = BITS(4) + 4; - DROPBITS(4); -#ifndef PKZIP_BUG_WORKAROUND - if (state->nlen > 286 || state->ndist > 30) { - strm->msg = (char *)"too many length or distance symbols"; - state->mode = BAD; - break; - } -#endif - Tracev((stderr, "inflate: table sizes ok\n")); - state->have = 0; - state->mode = LENLENS; - case LENLENS: - while (state->have < state->ncode) { - NEEDBITS(3); - state->lens[order[state->have++]] = (unsigned short)BITS(3); - DROPBITS(3); - } - while (state->have < 19) - state->lens[order[state->have++]] = 0; - state->next = state->codes; - state->lencode = (const code FAR *)(state->next); - state->lenbits = 7; - ret = inflate_table(CODES, state->lens, 19, &(state->next), - &(state->lenbits), state->work); - if (ret) { - strm->msg = (char *)"invalid code lengths set"; - state->mode = BAD; - break; - } - Tracev((stderr, "inflate: code lengths ok\n")); - state->have = 0; - state->mode = CODELENS; - case CODELENS: - while (state->have < state->nlen + state->ndist) { - for (;;) { - here = state->lencode[BITS(state->lenbits)]; - if ((unsigned)(here.bits) <= bits) break; - PULLBYTE(); - } - if (here.val < 16) { - DROPBITS(here.bits); - state->lens[state->have++] = here.val; - } - else { - if (here.val == 16) { - NEEDBITS(here.bits + 2); - DROPBITS(here.bits); - if (state->have == 0) { - strm->msg = (char *)"invalid bit length repeat"; - state->mode = BAD; - break; - } - len = state->lens[state->have - 1]; - copy = 3 + BITS(2); - DROPBITS(2); - } - else if (here.val == 17) { - NEEDBITS(here.bits + 3); - DROPBITS(here.bits); - len = 0; - copy = 3 + BITS(3); - DROPBITS(3); - } - else { - NEEDBITS(here.bits + 7); - DROPBITS(here.bits); - len = 0; - copy = 11 + BITS(7); - DROPBITS(7); - } - if (state->have + copy > state->nlen + state->ndist) { - strm->msg = (char *)"invalid bit length repeat"; - state->mode = BAD; - break; - } - while (copy--) - state->lens[state->have++] = (unsigned short)len; - } - } - - /* handle error breaks in while */ - if (state->mode == BAD) break; - - /* check for end-of-block code (better have one) */ - if (state->lens[256] == 0) { - strm->msg = (char *)"invalid code -- missing end-of-block"; - state->mode = BAD; - break; - } - - /* build code tables -- note: do not change the lenbits or distbits - values here (9 and 6) without reading the comments in inftrees.h - concerning the ENOUGH constants, which depend on those values */ - state->next = state->codes; - state->lencode = (const code FAR *)(state->next); - state->lenbits = 9; - ret = inflate_table(LENS, state->lens, state->nlen, &(state->next), - &(state->lenbits), state->work); - if (ret) { - strm->msg = (char *)"invalid literal/lengths set"; - state->mode = BAD; - break; - } - state->distcode = (const code FAR *)(state->next); - state->distbits = 6; - ret = inflate_table(DISTS, state->lens + state->nlen, state->ndist, - &(state->next), &(state->distbits), state->work); - if (ret) { - strm->msg = (char *)"invalid distances set"; - state->mode = BAD; - break; - } - Tracev((stderr, "inflate: codes ok\n")); - state->mode = LEN_; - if (flush == Z_TREES) goto inf_leave; - case LEN_: - state->mode = LEN; - case LEN: - if (have >= 6 && left >= 258) { - RESTORE(); - inflate_fast(strm, out); - LOAD(); - if (state->mode == TYPE) - state->back = -1; - break; - } - state->back = 0; - for (;;) { - here = state->lencode[BITS(state->lenbits)]; - if ((unsigned)(here.bits) <= bits) break; - PULLBYTE(); - } - if (here.op && (here.op & 0xf0) == 0) { - last = here; - for (;;) { - here = state->lencode[last.val + - (BITS(last.bits + last.op) >> last.bits)]; - if ((unsigned)(last.bits + here.bits) <= bits) break; - PULLBYTE(); - } - DROPBITS(last.bits); - state->back += last.bits; - } - DROPBITS(here.bits); - state->back += here.bits; - state->length = (unsigned)here.val; - if ((int)(here.op) == 0) { - Tracevv((stderr, here.val >= 0x20 && here.val < 0x7f ? - "inflate: literal '%c'\n" : - "inflate: literal 0x%02x\n", here.val)); - state->mode = LIT; - break; - } - if (here.op & 32) { - Tracevv((stderr, "inflate: end of block\n")); - state->back = -1; - state->mode = TYPE; - break; - } - if (here.op & 64) { - strm->msg = (char *)"invalid literal/length code"; - state->mode = BAD; - break; - } - state->extra = (unsigned)(here.op) & 15; - state->mode = LENEXT; - case LENEXT: - if (state->extra) { - NEEDBITS(state->extra); - state->length += BITS(state->extra); - DROPBITS(state->extra); - state->back += state->extra; - } - Tracevv((stderr, "inflate: length %u\n", state->length)); - state->was = state->length; - state->mode = DIST; - case DIST: - for (;;) { - here = state->distcode[BITS(state->distbits)]; - if ((unsigned)(here.bits) <= bits) break; - PULLBYTE(); - } - if ((here.op & 0xf0) == 0) { - last = here; - for (;;) { - here = state->distcode[last.val + - (BITS(last.bits + last.op) >> last.bits)]; - if ((unsigned)(last.bits + here.bits) <= bits) break; - PULLBYTE(); - } - DROPBITS(last.bits); - state->back += last.bits; - } - DROPBITS(here.bits); - state->back += here.bits; - if (here.op & 64) { - strm->msg = (char *)"invalid distance code"; - state->mode = BAD; - break; - } - state->offset = (unsigned)here.val; - state->extra = (unsigned)(here.op) & 15; - state->mode = DISTEXT; - case DISTEXT: - if (state->extra) { - NEEDBITS(state->extra); - state->offset += BITS(state->extra); - DROPBITS(state->extra); - state->back += state->extra; - } -#ifdef INFLATE_STRICT - if (state->offset > state->dmax) { - strm->msg = (char *)"invalid distance too far back"; - state->mode = BAD; - break; - } -#endif - Tracevv((stderr, "inflate: distance %u\n", state->offset)); - state->mode = MATCH; - case MATCH: - if (left == 0) goto inf_leave; - copy = out - left; - if (state->offset > copy) { /* copy from window */ - copy = state->offset - copy; - if (copy > state->whave) { - if (state->sane) { - strm->msg = (char *)"invalid distance too far back"; - state->mode = BAD; - break; - } -#ifdef INFLATE_ALLOW_INVALID_DISTANCE_TOOFAR_ARRR - Trace((stderr, "inflate.c too far\n")); - copy -= state->whave; - if (copy > state->length) copy = state->length; - if (copy > left) copy = left; - left -= copy; - state->length -= copy; - do { - *put++ = 0; - } while (--copy); - if (state->length == 0) state->mode = LEN; - break; -#endif - } - if (copy > state->wnext) { - copy -= state->wnext; - from = state->window + (state->wsize - copy); - } - else - from = state->window + (state->wnext - copy); - if (copy > state->length) copy = state->length; - } - else { /* copy from output */ - from = put - state->offset; - copy = state->length; - } - if (copy > left) copy = left; - left -= copy; - state->length -= copy; - do { - *put++ = *from++; - } while (--copy); - if (state->length == 0) state->mode = LEN; - break; - case LIT: - if (left == 0) goto inf_leave; - *put++ = (unsigned char)(state->length); - left--; - state->mode = LEN; - break; - case CHECK: - if (state->wrap) { - NEEDBITS(32); - out -= left; - strm->total_out += out; - state->total += out; - if (out) - strm->adler = state->check = - UPDATE(state->check, put - out, out); - out = left; - if (( -#ifdef GUNZIP - state->flags ? hold : -#endif - ZSWAP32(hold)) != state->check) { - strm->msg = (char *)"incorrect data check"; - state->mode = BAD; - break; - } - INITBITS(); - Tracev((stderr, "inflate: check matches trailer\n")); - } -#ifdef GUNZIP - state->mode = LENGTH; - case LENGTH: - if (state->wrap && state->flags) { - NEEDBITS(32); - if (hold != (state->total & 0xffffffffUL)) { - strm->msg = (char *)"incorrect length check"; - state->mode = BAD; - break; - } - INITBITS(); - Tracev((stderr, "inflate: length matches trailer\n")); - } -#endif - state->mode = DONE; - case DONE: - ret = Z_STREAM_END; - goto inf_leave; - case BAD: - ret = Z_DATA_ERROR; - goto inf_leave; - case MEM: - return Z_MEM_ERROR; - case SYNC: - default: - return Z_STREAM_ERROR; - } - - /* - Return from inflate(), updating the total counts and the check value. - If there was no progress during the inflate() call, return a buffer - error. Call updatewindow() to create and/or update the window state. - Note: a memory error from inflate() is non-recoverable. - */ - inf_leave: - RESTORE(); - if (state->wsize || (out != strm->avail_out && state->mode < BAD && - (state->mode < CHECK || flush != Z_FINISH))) - if (updatewindow(strm, strm->next_out, out - strm->avail_out)) { - state->mode = MEM; - return Z_MEM_ERROR; - } - in -= strm->avail_in; - out -= strm->avail_out; - strm->total_in += in; - strm->total_out += out; - state->total += out; - if (state->wrap && out) - strm->adler = state->check = - UPDATE(state->check, strm->next_out - out, out); - strm->data_type = state->bits + (state->last ? 64 : 0) + - (state->mode == TYPE ? 128 : 0) + - (state->mode == LEN_ || state->mode == COPY_ ? 256 : 0); - if (((in == 0 && out == 0) || flush == Z_FINISH) && ret == Z_OK) - ret = Z_BUF_ERROR; - return ret; -} - -int ZEXPORT inflateEnd(strm) -z_streamp strm; -{ - struct inflate_state FAR *state; - if (strm == Z_NULL || strm->state == Z_NULL || strm->zfree == (free_func)0) - return Z_STREAM_ERROR; - state = (struct inflate_state FAR *)strm->state; - if (state->window != Z_NULL) ZFREE(strm, state->window); - ZFREE(strm, strm->state); - strm->state = Z_NULL; - Tracev((stderr, "inflate: end\n")); - return Z_OK; -} - -int ZEXPORT inflateGetDictionary(strm, dictionary, dictLength) -z_streamp strm; -Bytef *dictionary; -uInt *dictLength; -{ - struct inflate_state FAR *state; - - /* check state */ - if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; - state = (struct inflate_state FAR *)strm->state; - - /* copy dictionary */ - if (state->whave && dictionary != Z_NULL) { - zmemcpy(dictionary, state->window + state->wnext, - state->whave - state->wnext); - zmemcpy(dictionary + state->whave - state->wnext, - state->window, state->wnext); - } - if (dictLength != Z_NULL) - *dictLength = state->whave; - return Z_OK; -} - -int ZEXPORT inflateSetDictionary(strm, dictionary, dictLength) -z_streamp strm; -const Bytef *dictionary; -uInt dictLength; -{ - struct inflate_state FAR *state; - unsigned long dictid; - int ret; - - /* check state */ - if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; - state = (struct inflate_state FAR *)strm->state; - if (state->wrap != 0 && state->mode != DICT) - return Z_STREAM_ERROR; - - /* check for correct dictionary identifier */ - if (state->mode == DICT) { - dictid = adler32(0L, Z_NULL, 0); - dictid = adler32(dictid, dictionary, dictLength); - if (dictid != state->check) - return Z_DATA_ERROR; - } - - /* copy dictionary to window using updatewindow(), which will amend the - existing dictionary if appropriate */ - ret = updatewindow(strm, dictionary + dictLength, dictLength); - if (ret) { - state->mode = MEM; - return Z_MEM_ERROR; - } - state->havedict = 1; - Tracev((stderr, "inflate: dictionary set\n")); - return Z_OK; -} - -int ZEXPORT inflateGetHeader(strm, head) -z_streamp strm; -gz_headerp head; -{ - struct inflate_state FAR *state; - - /* check state */ - if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; - state = (struct inflate_state FAR *)strm->state; - if ((state->wrap & 2) == 0) return Z_STREAM_ERROR; - - /* save header structure */ - state->head = head; - head->done = 0; - return Z_OK; -} - -/* - Search buf[0..len-1] for the pattern: 0, 0, 0xff, 0xff. Return when found - or when out of input. When called, *have is the number of pattern bytes - found in order so far, in 0..3. On return *have is updated to the new - state. If on return *have equals four, then the pattern was found and the - return value is how many bytes were read including the last byte of the - pattern. If *have is less than four, then the pattern has not been found - yet and the return value is len. In the latter case, syncsearch() can be - called again with more data and the *have state. *have is initialized to - zero for the first call. - */ -local unsigned syncsearch(have, buf, len) -unsigned FAR *have; -const unsigned char FAR *buf; -unsigned len; -{ - unsigned got; - unsigned next; - - got = *have; - next = 0; - while (next < len && got < 4) { - if ((int)(buf[next]) == (got < 2 ? 0 : 0xff)) - got++; - else if (buf[next]) - got = 0; - else - got = 4 - got; - next++; - } - *have = got; - return next; -} - -int ZEXPORT inflateSync(strm) -z_streamp strm; -{ - unsigned len; /* number of bytes to look at or looked at */ - unsigned long in, out; /* temporary to save total_in and total_out */ - unsigned char buf[4]; /* to restore bit buffer to byte string */ - struct inflate_state FAR *state; - - /* check parameters */ - if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; - state = (struct inflate_state FAR *)strm->state; - if (strm->avail_in == 0 && state->bits < 8) return Z_BUF_ERROR; - - /* if first time, start search in bit buffer */ - if (state->mode != SYNC) { - state->mode = SYNC; - state->hold <<= state->bits & 7; - state->bits -= state->bits & 7; - len = 0; - while (state->bits >= 8) { - buf[len++] = (unsigned char)(state->hold); - state->hold >>= 8; - state->bits -= 8; - } - state->have = 0; - syncsearch(&(state->have), buf, len); - } - - /* search available input */ - len = syncsearch(&(state->have), strm->next_in, strm->avail_in); - strm->avail_in -= len; - strm->next_in += len; - strm->total_in += len; - - /* return no joy or set up to restart inflate() on a new block */ - if (state->have != 4) return Z_DATA_ERROR; - in = strm->total_in; out = strm->total_out; - inflateReset(strm); - strm->total_in = in; strm->total_out = out; - state->mode = TYPE; - return Z_OK; -} - -/* - Returns true if inflate is currently at the end of a block generated by - Z_SYNC_FLUSH or Z_FULL_FLUSH. This function is used by one PPP - implementation to provide an additional safety check. PPP uses - Z_SYNC_FLUSH but removes the length bytes of the resulting empty stored - block. When decompressing, PPP checks that at the end of input packet, - inflate is waiting for these length bytes. - */ -int ZEXPORT inflateSyncPoint(strm) -z_streamp strm; -{ - struct inflate_state FAR *state; - - if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; - state = (struct inflate_state FAR *)strm->state; - return state->mode == STORED && state->bits == 0; -} - -int ZEXPORT inflateCopy(dest, source) -z_streamp dest; -z_streamp source; -{ - struct inflate_state FAR *state; - struct inflate_state FAR *copy; - unsigned char FAR *window; - unsigned wsize; - - /* check input */ - if (dest == Z_NULL || source == Z_NULL || source->state == Z_NULL || - source->zalloc == (alloc_func)0 || source->zfree == (free_func)0) - return Z_STREAM_ERROR; - state = (struct inflate_state FAR *)source->state; - - /* allocate space */ - copy = (struct inflate_state FAR *) - ZALLOC(source, 1, sizeof(struct inflate_state)); - if (copy == Z_NULL) return Z_MEM_ERROR; - window = Z_NULL; - if (state->window != Z_NULL) { - window = (unsigned char FAR *) - ZALLOC(source, 1U << state->wbits, sizeof(unsigned char)); - if (window == Z_NULL) { - ZFREE(source, copy); - return Z_MEM_ERROR; - } - } - - /* copy state */ - zmemcpy((voidpf)dest, (voidpf)source, sizeof(z_stream)); - zmemcpy((voidpf)copy, (voidpf)state, sizeof(struct inflate_state)); - if (state->lencode >= state->codes && - state->lencode <= state->codes + ENOUGH - 1) { - copy->lencode = copy->codes + (state->lencode - state->codes); - copy->distcode = copy->codes + (state->distcode - state->codes); - } - copy->next = copy->codes + (state->next - state->codes); - if (window != Z_NULL) { - wsize = 1U << state->wbits; - zmemcpy(window, state->window, wsize); - } - copy->window = window; - dest->state = (struct internal_state FAR *)copy; - return Z_OK; -} - -int ZEXPORT inflateUndermine(strm, subvert) -z_streamp strm; -int subvert; -{ - struct inflate_state FAR *state; - - if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; - state = (struct inflate_state FAR *)strm->state; - state->sane = !subvert; -#ifdef INFLATE_ALLOW_INVALID_DISTANCE_TOOFAR_ARRR - return Z_OK; -#else - state->sane = 1; - return Z_DATA_ERROR; -#endif -} - -long ZEXPORT inflateMark(strm) -z_streamp strm; -{ - struct inflate_state FAR *state; - - if (strm == Z_NULL || strm->state == Z_NULL) return -1L << 16; - state = (struct inflate_state FAR *)strm->state; - return ((long)(state->back) << 16) + - (state->mode == COPY ? state->length : - (state->mode == MATCH ? state->was - state->length : 0)); -} diff --git a/src/utilfuns/zlib/inflate.h b/src/utilfuns/zlib/inflate.h deleted file mode 100644 index 95f4986..0000000 --- a/src/utilfuns/zlib/inflate.h +++ /dev/null @@ -1,122 +0,0 @@ -/* inflate.h -- internal inflate state definition - * Copyright (C) 1995-2009 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* WARNING: this file should *not* be used by applications. It is - part of the implementation of the compression library and is - subject to change. Applications should only use zlib.h. - */ - -/* define NO_GZIP when compiling if you want to disable gzip header and - trailer decoding by inflate(). NO_GZIP would be used to avoid linking in - the crc code when it is not needed. For shared libraries, gzip decoding - should be left enabled. */ -#ifndef NO_GZIP -# define GUNZIP -#endif - -/* Possible inflate modes between inflate() calls */ -typedef enum { - HEAD, /* i: waiting for magic header */ - FLAGS, /* i: waiting for method and flags (gzip) */ - TIME, /* i: waiting for modification time (gzip) */ - OS, /* i: waiting for extra flags and operating system (gzip) */ - EXLEN, /* i: waiting for extra length (gzip) */ - EXTRA, /* i: waiting for extra bytes (gzip) */ - NAME, /* i: waiting for end of file name (gzip) */ - COMMENT, /* i: waiting for end of comment (gzip) */ - HCRC, /* i: waiting for header crc (gzip) */ - DICTID, /* i: waiting for dictionary check value */ - DICT, /* waiting for inflateSetDictionary() call */ - TYPE, /* i: waiting for type bits, including last-flag bit */ - TYPEDO, /* i: same, but skip check to exit inflate on new block */ - STORED, /* i: waiting for stored size (length and complement) */ - COPY_, /* i/o: same as COPY below, but only first time in */ - COPY, /* i/o: waiting for input or output to copy stored block */ - TABLE, /* i: waiting for dynamic block table lengths */ - LENLENS, /* i: waiting for code length code lengths */ - CODELENS, /* i: waiting for length/lit and distance code lengths */ - LEN_, /* i: same as LEN below, but only first time in */ - LEN, /* i: waiting for length/lit/eob code */ - LENEXT, /* i: waiting for length extra bits */ - DIST, /* i: waiting for distance code */ - DISTEXT, /* i: waiting for distance extra bits */ - MATCH, /* o: waiting for output space to copy string */ - LIT, /* o: waiting for output space to write literal */ - CHECK, /* i: waiting for 32-bit check value */ - LENGTH, /* i: waiting for 32-bit length (gzip) */ - DONE, /* finished check, done -- remain here until reset */ - BAD, /* got a data error -- remain here until reset */ - MEM, /* got an inflate() memory error -- remain here until reset */ - SYNC /* looking for synchronization bytes to restart inflate() */ -} inflate_mode; - -/* - State transitions between above modes - - - (most modes can go to BAD or MEM on error -- not shown for clarity) - - Process header: - HEAD -> (gzip) or (zlib) or (raw) - (gzip) -> FLAGS -> TIME -> OS -> EXLEN -> EXTRA -> NAME -> COMMENT -> - HCRC -> TYPE - (zlib) -> DICTID or TYPE - DICTID -> DICT -> TYPE - (raw) -> TYPEDO - Read deflate blocks: - TYPE -> TYPEDO -> STORED or TABLE or LEN_ or CHECK - STORED -> COPY_ -> COPY -> TYPE - TABLE -> LENLENS -> CODELENS -> LEN_ - LEN_ -> LEN - Read deflate codes in fixed or dynamic block: - LEN -> LENEXT or LIT or TYPE - LENEXT -> DIST -> DISTEXT -> MATCH -> LEN - LIT -> LEN - Process trailer: - CHECK -> LENGTH -> DONE - */ - -/* state maintained between inflate() calls. Approximately 10K bytes. */ -struct inflate_state { - inflate_mode mode; /* current inflate mode */ - int last; /* true if processing last block */ - int wrap; /* bit 0 true for zlib, bit 1 true for gzip */ - int havedict; /* true if dictionary provided */ - int flags; /* gzip header method and flags (0 if zlib) */ - unsigned dmax; /* zlib header max distance (INFLATE_STRICT) */ - unsigned long check; /* protected copy of check value */ - unsigned long total; /* protected copy of output count */ - gz_headerp head; /* where to save gzip header information */ - /* sliding window */ - unsigned wbits; /* log base 2 of requested window size */ - unsigned wsize; /* window size or zero if not using window */ - unsigned whave; /* valid bytes in the window */ - unsigned wnext; /* window write index */ - unsigned char FAR *window; /* allocated sliding window, if needed */ - /* bit accumulator */ - unsigned long hold; /* input bit accumulator */ - unsigned bits; /* number of bits in "in" */ - /* for string and stored block copying */ - unsigned length; /* literal or length of data to copy */ - unsigned offset; /* distance back to copy string from */ - /* for table and code decoding */ - unsigned extra; /* extra bits needed */ - /* fixed and dynamic code tables */ - code const FAR *lencode; /* starting table for length/literal codes */ - code const FAR *distcode; /* starting table for distance codes */ - unsigned lenbits; /* index bits for lencode */ - unsigned distbits; /* index bits for distcode */ - /* dynamic table building */ - unsigned ncode; /* number of code length code lengths */ - unsigned nlen; /* number of length code lengths */ - unsigned ndist; /* number of distance code lengths */ - unsigned have; /* number of code lengths in lens[] */ - code FAR *next; /* next available space in codes[] */ - unsigned short lens[320]; /* temporary storage for code lengths */ - unsigned short work[288]; /* work area for code table building */ - code codes[ENOUGH]; /* space for code tables */ - int sane; /* if false, allow invalid distance too far */ - int back; /* bits back of last unprocessed length/lit */ - unsigned was; /* initial length of match */ -}; diff --git a/src/utilfuns/zlib/inftrees.c b/src/utilfuns/zlib/inftrees.c deleted file mode 100644 index 44d89cf..0000000 --- a/src/utilfuns/zlib/inftrees.c +++ /dev/null @@ -1,306 +0,0 @@ -/* inftrees.c -- generate Huffman trees for efficient decoding - * Copyright (C) 1995-2013 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -#include "zutil.h" -#include "inftrees.h" - -#define MAXBITS 15 - -const char inflate_copyright[] = - " inflate 1.2.8 Copyright 1995-2013 Mark Adler "; -/* - If you use the zlib library in a product, an acknowledgment is welcome - in the documentation of your product. If for some reason you cannot - include such an acknowledgment, I would appreciate that you keep this - copyright string in the executable of your product. - */ - -/* - Build a set of tables to decode the provided canonical Huffman code. - The code lengths are lens[0..codes-1]. The result starts at *table, - whose indices are 0..2^bits-1. work is a writable array of at least - lens shorts, which is used as a work area. type is the type of code - to be generated, CODES, LENS, or DISTS. On return, zero is success, - -1 is an invalid code, and +1 means that ENOUGH isn't enough. table - on return points to the next available entry's address. bits is the - requested root table index bits, and on return it is the actual root - table index bits. It will differ if the request is greater than the - longest code or if it is less than the shortest code. - */ -int ZLIB_INTERNAL inflate_table(type, lens, codes, table, bits, work) -codetype type; -unsigned short FAR *lens; -unsigned codes; -code FAR * FAR *table; -unsigned FAR *bits; -unsigned short FAR *work; -{ - unsigned len; /* a code's length in bits */ - unsigned sym; /* index of code symbols */ - unsigned min, max; /* minimum and maximum code lengths */ - unsigned root; /* number of index bits for root table */ - unsigned curr; /* number of index bits for current table */ - unsigned drop; /* code bits to drop for sub-table */ - int left; /* number of prefix codes available */ - unsigned used; /* code entries in table used */ - unsigned huff; /* Huffman code */ - unsigned incr; /* for incrementing code, index */ - unsigned fill; /* index for replicating entries */ - unsigned low; /* low bits for current root entry */ - unsigned mask; /* mask for low root bits */ - code here; /* table entry for duplication */ - code FAR *next; /* next available space in table */ - const unsigned short FAR *base; /* base value table to use */ - const unsigned short FAR *extra; /* extra bits table to use */ - int end; /* use base and extra for symbol > end */ - unsigned short count[MAXBITS+1]; /* number of codes of each length */ - unsigned short offs[MAXBITS+1]; /* offsets in table for each length */ - static const unsigned short lbase[31] = { /* Length codes 257..285 base */ - 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, 19, 23, 27, 31, - 35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258, 0, 0}; - static const unsigned short lext[31] = { /* Length codes 257..285 extra */ - 16, 16, 16, 16, 16, 16, 16, 16, 17, 17, 17, 17, 18, 18, 18, 18, - 19, 19, 19, 19, 20, 20, 20, 20, 21, 21, 21, 21, 16, 72, 78}; - static const unsigned short dbase[32] = { /* Distance codes 0..29 base */ - 1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193, - 257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145, - 8193, 12289, 16385, 24577, 0, 0}; - static const unsigned short dext[32] = { /* Distance codes 0..29 extra */ - 16, 16, 16, 16, 17, 17, 18, 18, 19, 19, 20, 20, 21, 21, 22, 22, - 23, 23, 24, 24, 25, 25, 26, 26, 27, 27, - 28, 28, 29, 29, 64, 64}; - - /* - Process a set of code lengths to create a canonical Huffman code. The - code lengths are lens[0..codes-1]. Each length corresponds to the - symbols 0..codes-1. The Huffman code is generated by first sorting the - symbols by length from short to long, and retaining the symbol order - for codes with equal lengths. Then the code starts with all zero bits - for the first code of the shortest length, and the codes are integer - increments for the same length, and zeros are appended as the length - increases. For the deflate format, these bits are stored backwards - from their more natural integer increment ordering, and so when the - decoding tables are built in the large loop below, the integer codes - are incremented backwards. - - This routine assumes, but does not check, that all of the entries in - lens[] are in the range 0..MAXBITS. The caller must assure this. - 1..MAXBITS is interpreted as that code length. zero means that that - symbol does not occur in this code. - - The codes are sorted by computing a count of codes for each length, - creating from that a table of starting indices for each length in the - sorted table, and then entering the symbols in order in the sorted - table. The sorted table is work[], with that space being provided by - the caller. - - The length counts are used for other purposes as well, i.e. finding - the minimum and maximum length codes, determining if there are any - codes at all, checking for a valid set of lengths, and looking ahead - at length counts to determine sub-table sizes when building the - decoding tables. - */ - - /* accumulate lengths for codes (assumes lens[] all in 0..MAXBITS) */ - for (len = 0; len <= MAXBITS; len++) - count[len] = 0; - for (sym = 0; sym < codes; sym++) - count[lens[sym]]++; - - /* bound code lengths, force root to be within code lengths */ - root = *bits; - for (max = MAXBITS; max >= 1; max--) - if (count[max] != 0) break; - if (root > max) root = max; - if (max == 0) { /* no symbols to code at all */ - here.op = (unsigned char)64; /* invalid code marker */ - here.bits = (unsigned char)1; - here.val = (unsigned short)0; - *(*table)++ = here; /* make a table to force an error */ - *(*table)++ = here; - *bits = 1; - return 0; /* no symbols, but wait for decoding to report error */ - } - for (min = 1; min < max; min++) - if (count[min] != 0) break; - if (root < min) root = min; - - /* check for an over-subscribed or incomplete set of lengths */ - left = 1; - for (len = 1; len <= MAXBITS; len++) { - left <<= 1; - left -= count[len]; - if (left < 0) return -1; /* over-subscribed */ - } - if (left > 0 && (type == CODES || max != 1)) - return -1; /* incomplete set */ - - /* generate offsets into symbol table for each length for sorting */ - offs[1] = 0; - for (len = 1; len < MAXBITS; len++) - offs[len + 1] = offs[len] + count[len]; - - /* sort symbols by length, by symbol order within each length */ - for (sym = 0; sym < codes; sym++) - if (lens[sym] != 0) work[offs[lens[sym]]++] = (unsigned short)sym; - - /* - Create and fill in decoding tables. In this loop, the table being - filled is at next and has curr index bits. The code being used is huff - with length len. That code is converted to an index by dropping drop - bits off of the bottom. For codes where len is less than drop + curr, - those top drop + curr - len bits are incremented through all values to - fill the table with replicated entries. - - root is the number of index bits for the root table. When len exceeds - root, sub-tables are created pointed to by the root entry with an index - of the low root bits of huff. This is saved in low to check for when a - new sub-table should be started. drop is zero when the root table is - being filled, and drop is root when sub-tables are being filled. - - When a new sub-table is needed, it is necessary to look ahead in the - code lengths to determine what size sub-table is needed. The length - counts are used for this, and so count[] is decremented as codes are - entered in the tables. - - used keeps track of how many table entries have been allocated from the - provided *table space. It is checked for LENS and DIST tables against - the constants ENOUGH_LENS and ENOUGH_DISTS to guard against changes in - the initial root table size constants. See the comments in inftrees.h - for more information. - - sym increments through all symbols, and the loop terminates when - all codes of length max, i.e. all codes, have been processed. This - routine permits incomplete codes, so another loop after this one fills - in the rest of the decoding tables with invalid code markers. - */ - - /* set up for code type */ - switch (type) { - case CODES: - base = extra = work; /* dummy value--not used */ - end = 19; - break; - case LENS: - base = lbase; - base -= 257; - extra = lext; - extra -= 257; - end = 256; - break; - default: /* DISTS */ - base = dbase; - extra = dext; - end = -1; - } - - /* initialize state for loop */ - huff = 0; /* starting code */ - sym = 0; /* starting code symbol */ - len = min; /* starting code length */ - next = *table; /* current table to fill in */ - curr = root; /* current table index bits */ - drop = 0; /* current bits to drop from code for index */ - low = (unsigned)(-1); /* trigger new sub-table when len > root */ - used = 1U << root; /* use root table entries */ - mask = used - 1; /* mask for comparing low */ - - /* check available table space */ - if ((type == LENS && used > ENOUGH_LENS) || - (type == DISTS && used > ENOUGH_DISTS)) - return 1; - - /* process all codes and make table entries */ - for (;;) { - /* create table entry */ - here.bits = (unsigned char)(len - drop); - if ((int)(work[sym]) < end) { - here.op = (unsigned char)0; - here.val = work[sym]; - } - else if ((int)(work[sym]) > end) { - here.op = (unsigned char)(extra[work[sym]]); - here.val = base[work[sym]]; - } - else { - here.op = (unsigned char)(32 + 64); /* end of block */ - here.val = 0; - } - - /* replicate for those indices with low len bits equal to huff */ - incr = 1U << (len - drop); - fill = 1U << curr; - min = fill; /* save offset to next table */ - do { - fill -= incr; - next[(huff >> drop) + fill] = here; - } while (fill != 0); - - /* backwards increment the len-bit code huff */ - incr = 1U << (len - 1); - while (huff & incr) - incr >>= 1; - if (incr != 0) { - huff &= incr - 1; - huff += incr; - } - else - huff = 0; - - /* go to next symbol, update count, len */ - sym++; - if (--(count[len]) == 0) { - if (len == max) break; - len = lens[work[sym]]; - } - - /* create new sub-table if needed */ - if (len > root && (huff & mask) != low) { - /* if first time, transition to sub-tables */ - if (drop == 0) - drop = root; - - /* increment past last table */ - next += min; /* here min is 1 << curr */ - - /* determine length of next table */ - curr = len - drop; - left = (int)(1 << curr); - while (curr + drop < max) { - left -= count[curr + drop]; - if (left <= 0) break; - curr++; - left <<= 1; - } - - /* check for enough space */ - used += 1U << curr; - if ((type == LENS && used > ENOUGH_LENS) || - (type == DISTS && used > ENOUGH_DISTS)) - return 1; - - /* point entry in root table to sub-table */ - low = huff & mask; - (*table)[low].op = (unsigned char)curr; - (*table)[low].bits = (unsigned char)root; - (*table)[low].val = (unsigned short)(next - *table); - } - } - - /* fill in remaining table entry if code is incomplete (guaranteed to have - at most one remaining entry, since if the code is incomplete, the - maximum code length that was allowed to get this far is one bit) */ - if (huff != 0) { - here.op = (unsigned char)64; /* invalid code marker */ - here.bits = (unsigned char)(len - drop); - here.val = (unsigned short)0; - next[huff] = here; - } - - /* set return parameters */ - *table += used; - *bits = root; - return 0; -} diff --git a/src/utilfuns/zlib/inftrees.h b/src/utilfuns/zlib/inftrees.h deleted file mode 100644 index baa53a0..0000000 --- a/src/utilfuns/zlib/inftrees.h +++ /dev/null @@ -1,62 +0,0 @@ -/* inftrees.h -- header to use inftrees.c - * Copyright (C) 1995-2005, 2010 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* WARNING: this file should *not* be used by applications. It is - part of the implementation of the compression library and is - subject to change. Applications should only use zlib.h. - */ - -/* Structure for decoding tables. Each entry provides either the - information needed to do the operation requested by the code that - indexed that table entry, or it provides a pointer to another - table that indexes more bits of the code. op indicates whether - the entry is a pointer to another table, a literal, a length or - distance, an end-of-block, or an invalid code. For a table - pointer, the low four bits of op is the number of index bits of - that table. For a length or distance, the low four bits of op - is the number of extra bits to get after the code. bits is - the number of bits in this code or part of the code to drop off - of the bit buffer. val is the actual byte to output in the case - of a literal, the base length or distance, or the offset from - the current table to the next table. Each entry is four bytes. */ -typedef struct { - unsigned char op; /* operation, extra bits, table bits */ - unsigned char bits; /* bits in this part of the code */ - unsigned short val; /* offset in table or code value */ -} code; - -/* op values as set by inflate_table(): - 00000000 - literal - 0000tttt - table link, tttt != 0 is the number of table index bits - 0001eeee - length or distance, eeee is the number of extra bits - 01100000 - end of block - 01000000 - invalid code - */ - -/* Maximum size of the dynamic table. The maximum number of code structures is - 1444, which is the sum of 852 for literal/length codes and 592 for distance - codes. These values were found by exhaustive searches using the program - examples/enough.c found in the zlib distribtution. The arguments to that - program are the number of symbols, the initial root table size, and the - maximum bit length of a code. "enough 286 9 15" for literal/length codes - returns returns 852, and "enough 30 6 15" for distance codes returns 592. - The initial root table size (9 or 6) is found in the fifth argument of the - inflate_table() calls in inflate.c and infback.c. If the root table size is - changed, then these maximum sizes would be need to be recalculated and - updated. */ -#define ENOUGH_LENS 852 -#define ENOUGH_DISTS 592 -#define ENOUGH (ENOUGH_LENS+ENOUGH_DISTS) - -/* Type of code to build for inflate_table() */ -typedef enum { - CODES, - LENS, - DISTS -} codetype; - -int ZLIB_INTERNAL inflate_table OF((codetype type, unsigned short FAR *lens, - unsigned codes, code FAR * FAR *table, - unsigned FAR *bits, unsigned short FAR *work)); diff --git a/src/utilfuns/zlib/trees.c b/src/utilfuns/zlib/trees.c deleted file mode 100644 index 63f8616..0000000 --- a/src/utilfuns/zlib/trees.c +++ /dev/null @@ -1,1226 +0,0 @@ -/* trees.c -- output deflated data using Huffman coding - * Copyright (C) 1995-2012 Jean-loup Gailly - * detect_data_type() function provided freely by Cosmin Truta, 2006 - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* - * ALGORITHM - * - * The "deflation" process uses several Huffman trees. The more - * common source values are represented by shorter bit sequences. - * - * Each code tree is stored in a compressed form which is itself - * a Huffman encoding of the lengths of all the code strings (in - * ascending order by source values). The actual code strings are - * reconstructed from the lengths in the inflate process, as described - * in the deflate specification. - * - * REFERENCES - * - * Deutsch, L.P.,"'Deflate' Compressed Data Format Specification". - * Available in ftp.uu.net:/pub/archiving/zip/doc/deflate-1.1.doc - * - * Storer, James A. - * Data Compression: Methods and Theory, pp. 49-50. - * Computer Science Press, 1988. ISBN 0-7167-8156-5. - * - * Sedgewick, R. - * Algorithms, p290. - * Addison-Wesley, 1983. ISBN 0-201-06672-6. - */ - -/* @(#) $Id: trees.c 2809 2013-06-10 06:24:27Z chrislit $ */ - -/* #define GEN_TREES_H */ - -#include "deflate.h" - -#ifdef DEBUG -# include <ctype.h> -#endif - -/* =========================================================================== - * Constants - */ - -#define MAX_BL_BITS 7 -/* Bit length codes must not exceed MAX_BL_BITS bits */ - -#define END_BLOCK 256 -/* end of block literal code */ - -#define REP_3_6 16 -/* repeat previous bit length 3-6 times (2 bits of repeat count) */ - -#define REPZ_3_10 17 -/* repeat a zero length 3-10 times (3 bits of repeat count) */ - -#define REPZ_11_138 18 -/* repeat a zero length 11-138 times (7 bits of repeat count) */ - -local const int extra_lbits[LENGTH_CODES] /* extra bits for each length code */ - = {0,0,0,0,0,0,0,0,1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,5,5,5,5,0}; - -local const int extra_dbits[D_CODES] /* extra bits for each distance code */ - = {0,0,0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13}; - -local const int extra_blbits[BL_CODES]/* extra bits for each bit length code */ - = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,3,7}; - -local const uch bl_order[BL_CODES] - = {16,17,18,0,8,7,9,6,10,5,11,4,12,3,13,2,14,1,15}; -/* The lengths of the bit length codes are sent in order of decreasing - * probability, to avoid transmitting the lengths for unused bit length codes. - */ - -/* =========================================================================== - * Local data. These are initialized only once. - */ - -#define DIST_CODE_LEN 512 /* see definition of array dist_code below */ - -#if defined(GEN_TREES_H) || !defined(STDC) -/* non ANSI compilers may not accept trees.h */ - -local ct_data static_ltree[L_CODES+2]; -/* The static literal tree. Since the bit lengths are imposed, there is no - * need for the L_CODES extra codes used during heap construction. However - * The codes 286 and 287 are needed to build a canonical tree (see _tr_init - * below). - */ - -local ct_data static_dtree[D_CODES]; -/* The static distance tree. (Actually a trivial tree since all codes use - * 5 bits.) - */ - -uch _dist_code[DIST_CODE_LEN]; -/* Distance codes. The first 256 values correspond to the distances - * 3 .. 258, the last 256 values correspond to the top 8 bits of - * the 15 bit distances. - */ - -uch _length_code[MAX_MATCH-MIN_MATCH+1]; -/* length code for each normalized match length (0 == MIN_MATCH) */ - -local int base_length[LENGTH_CODES]; -/* First normalized length for each code (0 = MIN_MATCH) */ - -local int base_dist[D_CODES]; -/* First normalized distance for each code (0 = distance of 1) */ - -#else -# include "trees.h" -#endif /* GEN_TREES_H */ - -struct static_tree_desc_s { - const ct_data *static_tree; /* static tree or NULL */ - const intf *extra_bits; /* extra bits for each code or NULL */ - int extra_base; /* base index for extra_bits */ - int elems; /* max number of elements in the tree */ - int max_length; /* max bit length for the codes */ -}; - -local static_tree_desc static_l_desc = -{static_ltree, extra_lbits, LITERALS+1, L_CODES, MAX_BITS}; - -local static_tree_desc static_d_desc = -{static_dtree, extra_dbits, 0, D_CODES, MAX_BITS}; - -local static_tree_desc static_bl_desc = -{(const ct_data *)0, extra_blbits, 0, BL_CODES, MAX_BL_BITS}; - -/* =========================================================================== - * Local (static) routines in this file. - */ - -local void tr_static_init OF((void)); -local void init_block OF((deflate_state *s)); -local void pqdownheap OF((deflate_state *s, ct_data *tree, int k)); -local void gen_bitlen OF((deflate_state *s, tree_desc *desc)); -local void gen_codes OF((ct_data *tree, int max_code, ushf *bl_count)); -local void build_tree OF((deflate_state *s, tree_desc *desc)); -local void scan_tree OF((deflate_state *s, ct_data *tree, int max_code)); -local void send_tree OF((deflate_state *s, ct_data *tree, int max_code)); -local int build_bl_tree OF((deflate_state *s)); -local void send_all_trees OF((deflate_state *s, int lcodes, int dcodes, - int blcodes)); -local void compress_block OF((deflate_state *s, const ct_data *ltree, - const ct_data *dtree)); -local int detect_data_type OF((deflate_state *s)); -local unsigned bi_reverse OF((unsigned value, int length)); -local void bi_windup OF((deflate_state *s)); -local void bi_flush OF((deflate_state *s)); -local void copy_block OF((deflate_state *s, charf *buf, unsigned len, - int header)); - -#ifdef GEN_TREES_H -local void gen_trees_header OF((void)); -#endif - -#ifndef DEBUG -# define send_code(s, c, tree) send_bits(s, tree[c].Code, tree[c].Len) - /* Send a code of the given tree. c and tree must not have side effects */ - -#else /* DEBUG */ -# define send_code(s, c, tree) \ - { if (z_verbose>2) fprintf(stderr,"\ncd %3d ",(c)); \ - send_bits(s, tree[c].Code, tree[c].Len); } -#endif - -/* =========================================================================== - * Output a short LSB first on the stream. - * IN assertion: there is enough room in pendingBuf. - */ -#define put_short(s, w) { \ - put_byte(s, (uch)((w) & 0xff)); \ - put_byte(s, (uch)((ush)(w) >> 8)); \ -} - -/* =========================================================================== - * Send a value on a given number of bits. - * IN assertion: length <= 16 and value fits in length bits. - */ -#ifdef DEBUG -local void send_bits OF((deflate_state *s, int value, int length)); - -local void send_bits(s, value, length) - deflate_state *s; - int value; /* value to send */ - int length; /* number of bits */ -{ - Tracevv((stderr," l %2d v %4x ", length, value)); - Assert(length > 0 && length <= 15, "invalid length"); - s->bits_sent += (ulg)length; - - /* If not enough room in bi_buf, use (valid) bits from bi_buf and - * (16 - bi_valid) bits from value, leaving (width - (16-bi_valid)) - * unused bits in value. - */ - if (s->bi_valid > (int)Buf_size - length) { - s->bi_buf |= (ush)value << s->bi_valid; - put_short(s, s->bi_buf); - s->bi_buf = (ush)value >> (Buf_size - s->bi_valid); - s->bi_valid += length - Buf_size; - } else { - s->bi_buf |= (ush)value << s->bi_valid; - s->bi_valid += length; - } -} -#else /* !DEBUG */ - -#define send_bits(s, value, length) \ -{ int len = length;\ - if (s->bi_valid > (int)Buf_size - len) {\ - int val = value;\ - s->bi_buf |= (ush)val << s->bi_valid;\ - put_short(s, s->bi_buf);\ - s->bi_buf = (ush)val >> (Buf_size - s->bi_valid);\ - s->bi_valid += len - Buf_size;\ - } else {\ - s->bi_buf |= (ush)(value) << s->bi_valid;\ - s->bi_valid += len;\ - }\ -} -#endif /* DEBUG */ - - -/* the arguments must not have side effects */ - -/* =========================================================================== - * Initialize the various 'constant' tables. - */ -local void tr_static_init() -{ -#if defined(GEN_TREES_H) || !defined(STDC) - static int static_init_done = 0; - int n; /* iterates over tree elements */ - int bits; /* bit counter */ - int length; /* length value */ - int code; /* code value */ - int dist; /* distance index */ - ush bl_count[MAX_BITS+1]; - /* number of codes at each bit length for an optimal tree */ - - if (static_init_done) return; - - /* For some embedded targets, global variables are not initialized: */ -#ifdef NO_INIT_GLOBAL_POINTERS - static_l_desc.static_tree = static_ltree; - static_l_desc.extra_bits = extra_lbits; - static_d_desc.static_tree = static_dtree; - static_d_desc.extra_bits = extra_dbits; - static_bl_desc.extra_bits = extra_blbits; -#endif - - /* Initialize the mapping length (0..255) -> length code (0..28) */ - length = 0; - for (code = 0; code < LENGTH_CODES-1; code++) { - base_length[code] = length; - for (n = 0; n < (1<<extra_lbits[code]); n++) { - _length_code[length++] = (uch)code; - } - } - Assert (length == 256, "tr_static_init: length != 256"); - /* Note that the length 255 (match length 258) can be represented - * in two different ways: code 284 + 5 bits or code 285, so we - * overwrite length_code[255] to use the best encoding: - */ - _length_code[length-1] = (uch)code; - - /* Initialize the mapping dist (0..32K) -> dist code (0..29) */ - dist = 0; - for (code = 0 ; code < 16; code++) { - base_dist[code] = dist; - for (n = 0; n < (1<<extra_dbits[code]); n++) { - _dist_code[dist++] = (uch)code; - } - } - Assert (dist == 256, "tr_static_init: dist != 256"); - dist >>= 7; /* from now on, all distances are divided by 128 */ - for ( ; code < D_CODES; code++) { - base_dist[code] = dist << 7; - for (n = 0; n < (1<<(extra_dbits[code]-7)); n++) { - _dist_code[256 + dist++] = (uch)code; - } - } - Assert (dist == 256, "tr_static_init: 256+dist != 512"); - - /* Construct the codes of the static literal tree */ - for (bits = 0; bits <= MAX_BITS; bits++) bl_count[bits] = 0; - n = 0; - while (n <= 143) static_ltree[n++].Len = 8, bl_count[8]++; - while (n <= 255) static_ltree[n++].Len = 9, bl_count[9]++; - while (n <= 279) static_ltree[n++].Len = 7, bl_count[7]++; - while (n <= 287) static_ltree[n++].Len = 8, bl_count[8]++; - /* Codes 286 and 287 do not exist, but we must include them in the - * tree construction to get a canonical Huffman tree (longest code - * all ones) - */ - gen_codes((ct_data *)static_ltree, L_CODES+1, bl_count); - - /* The static distance tree is trivial: */ - for (n = 0; n < D_CODES; n++) { - static_dtree[n].Len = 5; - static_dtree[n].Code = bi_reverse((unsigned)n, 5); - } - static_init_done = 1; - -# ifdef GEN_TREES_H - gen_trees_header(); -# endif -#endif /* defined(GEN_TREES_H) || !defined(STDC) */ -} - -/* =========================================================================== - * Genererate the file trees.h describing the static trees. - */ -#ifdef GEN_TREES_H -# ifndef DEBUG -# include <stdio.h> -# endif - -# define SEPARATOR(i, last, width) \ - ((i) == (last)? "\n};\n\n" : \ - ((i) % (width) == (width)-1 ? ",\n" : ", ")) - -void gen_trees_header() -{ - FILE *header = fopen("trees.h", "w"); - int i; - - Assert (header != NULL, "Can't open trees.h"); - fprintf(header, - "/* header created automatically with -DGEN_TREES_H */\n\n"); - - fprintf(header, "local const ct_data static_ltree[L_CODES+2] = {\n"); - for (i = 0; i < L_CODES+2; i++) { - fprintf(header, "{{%3u},{%3u}}%s", static_ltree[i].Code, - static_ltree[i].Len, SEPARATOR(i, L_CODES+1, 5)); - } - - fprintf(header, "local const ct_data static_dtree[D_CODES] = {\n"); - for (i = 0; i < D_CODES; i++) { - fprintf(header, "{{%2u},{%2u}}%s", static_dtree[i].Code, - static_dtree[i].Len, SEPARATOR(i, D_CODES-1, 5)); - } - - fprintf(header, "const uch ZLIB_INTERNAL _dist_code[DIST_CODE_LEN] = {\n"); - for (i = 0; i < DIST_CODE_LEN; i++) { - fprintf(header, "%2u%s", _dist_code[i], - SEPARATOR(i, DIST_CODE_LEN-1, 20)); - } - - fprintf(header, - "const uch ZLIB_INTERNAL _length_code[MAX_MATCH-MIN_MATCH+1]= {\n"); - for (i = 0; i < MAX_MATCH-MIN_MATCH+1; i++) { - fprintf(header, "%2u%s", _length_code[i], - SEPARATOR(i, MAX_MATCH-MIN_MATCH, 20)); - } - - fprintf(header, "local const int base_length[LENGTH_CODES] = {\n"); - for (i = 0; i < LENGTH_CODES; i++) { - fprintf(header, "%1u%s", base_length[i], - SEPARATOR(i, LENGTH_CODES-1, 20)); - } - - fprintf(header, "local const int base_dist[D_CODES] = {\n"); - for (i = 0; i < D_CODES; i++) { - fprintf(header, "%5u%s", base_dist[i], - SEPARATOR(i, D_CODES-1, 10)); - } - - fclose(header); -} -#endif /* GEN_TREES_H */ - -/* =========================================================================== - * Initialize the tree data structures for a new zlib stream. - */ -void ZLIB_INTERNAL _tr_init(s) - deflate_state *s; -{ - tr_static_init(); - - s->l_desc.dyn_tree = s->dyn_ltree; - s->l_desc.stat_desc = &static_l_desc; - - s->d_desc.dyn_tree = s->dyn_dtree; - s->d_desc.stat_desc = &static_d_desc; - - s->bl_desc.dyn_tree = s->bl_tree; - s->bl_desc.stat_desc = &static_bl_desc; - - s->bi_buf = 0; - s->bi_valid = 0; -#ifdef DEBUG - s->compressed_len = 0L; - s->bits_sent = 0L; -#endif - - /* Initialize the first block of the first file: */ - init_block(s); -} - -/* =========================================================================== - * Initialize a new block. - */ -local void init_block(s) - deflate_state *s; -{ - int n; /* iterates over tree elements */ - - /* Initialize the trees. */ - for (n = 0; n < L_CODES; n++) s->dyn_ltree[n].Freq = 0; - for (n = 0; n < D_CODES; n++) s->dyn_dtree[n].Freq = 0; - for (n = 0; n < BL_CODES; n++) s->bl_tree[n].Freq = 0; - - s->dyn_ltree[END_BLOCK].Freq = 1; - s->opt_len = s->static_len = 0L; - s->last_lit = s->matches = 0; -} - -#define SMALLEST 1 -/* Index within the heap array of least frequent node in the Huffman tree */ - - -/* =========================================================================== - * Remove the smallest element from the heap and recreate the heap with - * one less element. Updates heap and heap_len. - */ -#define pqremove(s, tree, top) \ -{\ - top = s->heap[SMALLEST]; \ - s->heap[SMALLEST] = s->heap[s->heap_len--]; \ - pqdownheap(s, tree, SMALLEST); \ -} - -/* =========================================================================== - * Compares to subtrees, using the tree depth as tie breaker when - * the subtrees have equal frequency. This minimizes the worst case length. - */ -#define smaller(tree, n, m, depth) \ - (tree[n].Freq < tree[m].Freq || \ - (tree[n].Freq == tree[m].Freq && depth[n] <= depth[m])) - -/* =========================================================================== - * Restore the heap property by moving down the tree starting at node k, - * exchanging a node with the smallest of its two sons if necessary, stopping - * when the heap property is re-established (each father smaller than its - * two sons). - */ -local void pqdownheap(s, tree, k) - deflate_state *s; - ct_data *tree; /* the tree to restore */ - int k; /* node to move down */ -{ - int v = s->heap[k]; - int j = k << 1; /* left son of k */ - while (j <= s->heap_len) { - /* Set j to the smallest of the two sons: */ - if (j < s->heap_len && - smaller(tree, s->heap[j+1], s->heap[j], s->depth)) { - j++; - } - /* Exit if v is smaller than both sons */ - if (smaller(tree, v, s->heap[j], s->depth)) break; - - /* Exchange v with the smallest son */ - s->heap[k] = s->heap[j]; k = j; - - /* And continue down the tree, setting j to the left son of k */ - j <<= 1; - } - s->heap[k] = v; -} - -/* =========================================================================== - * Compute the optimal bit lengths for a tree and update the total bit length - * for the current block. - * IN assertion: the fields freq and dad are set, heap[heap_max] and - * above are the tree nodes sorted by increasing frequency. - * OUT assertions: the field len is set to the optimal bit length, the - * array bl_count contains the frequencies for each bit length. - * The length opt_len is updated; static_len is also updated if stree is - * not null. - */ -local void gen_bitlen(s, desc) - deflate_state *s; - tree_desc *desc; /* the tree descriptor */ -{ - ct_data *tree = desc->dyn_tree; - int max_code = desc->max_code; - const ct_data *stree = desc->stat_desc->static_tree; - const intf *extra = desc->stat_desc->extra_bits; - int base = desc->stat_desc->extra_base; - int max_length = desc->stat_desc->max_length; - int h; /* heap index */ - int n, m; /* iterate over the tree elements */ - int bits; /* bit length */ - int xbits; /* extra bits */ - ush f; /* frequency */ - int overflow = 0; /* number of elements with bit length too large */ - - for (bits = 0; bits <= MAX_BITS; bits++) s->bl_count[bits] = 0; - - /* In a first pass, compute the optimal bit lengths (which may - * overflow in the case of the bit length tree). - */ - tree[s->heap[s->heap_max]].Len = 0; /* root of the heap */ - - for (h = s->heap_max+1; h < HEAP_SIZE; h++) { - n = s->heap[h]; - bits = tree[tree[n].Dad].Len + 1; - if (bits > max_length) bits = max_length, overflow++; - tree[n].Len = (ush)bits; - /* We overwrite tree[n].Dad which is no longer needed */ - - if (n > max_code) continue; /* not a leaf node */ - - s->bl_count[bits]++; - xbits = 0; - if (n >= base) xbits = extra[n-base]; - f = tree[n].Freq; - s->opt_len += (ulg)f * (bits + xbits); - if (stree) s->static_len += (ulg)f * (stree[n].Len + xbits); - } - if (overflow == 0) return; - - Trace((stderr,"\nbit length overflow\n")); - /* This happens for example on obj2 and pic of the Calgary corpus */ - - /* Find the first bit length which could increase: */ - do { - bits = max_length-1; - while (s->bl_count[bits] == 0) bits--; - s->bl_count[bits]--; /* move one leaf down the tree */ - s->bl_count[bits+1] += 2; /* move one overflow item as its brother */ - s->bl_count[max_length]--; - /* The brother of the overflow item also moves one step up, - * but this does not affect bl_count[max_length] - */ - overflow -= 2; - } while (overflow > 0); - - /* Now recompute all bit lengths, scanning in increasing frequency. - * h is still equal to HEAP_SIZE. (It is simpler to reconstruct all - * lengths instead of fixing only the wrong ones. This idea is taken - * from 'ar' written by Haruhiko Okumura.) - */ - for (bits = max_length; bits != 0; bits--) { - n = s->bl_count[bits]; - while (n != 0) { - m = s->heap[--h]; - if (m > max_code) continue; - if ((unsigned) tree[m].Len != (unsigned) bits) { - Trace((stderr,"code %d bits %d->%d\n", m, tree[m].Len, bits)); - s->opt_len += ((long)bits - (long)tree[m].Len) - *(long)tree[m].Freq; - tree[m].Len = (ush)bits; - } - n--; - } - } -} - -/* =========================================================================== - * Generate the codes for a given tree and bit counts (which need not be - * optimal). - * IN assertion: the array bl_count contains the bit length statistics for - * the given tree and the field len is set for all tree elements. - * OUT assertion: the field code is set for all tree elements of non - * zero code length. - */ -local void gen_codes (tree, max_code, bl_count) - ct_data *tree; /* the tree to decorate */ - int max_code; /* largest code with non zero frequency */ - ushf *bl_count; /* number of codes at each bit length */ -{ - ush next_code[MAX_BITS+1]; /* next code value for each bit length */ - ush code = 0; /* running code value */ - int bits; /* bit index */ - int n; /* code index */ - - /* The distribution counts are first used to generate the code values - * without bit reversal. - */ - for (bits = 1; bits <= MAX_BITS; bits++) { - next_code[bits] = code = (code + bl_count[bits-1]) << 1; - } - /* Check that the bit counts in bl_count are consistent. The last code - * must be all ones. - */ - Assert (code + bl_count[MAX_BITS]-1 == (1<<MAX_BITS)-1, - "inconsistent bit counts"); - Tracev((stderr,"\ngen_codes: max_code %d ", max_code)); - - for (n = 0; n <= max_code; n++) { - int len = tree[n].Len; - if (len == 0) continue; - /* Now reverse the bits */ - tree[n].Code = bi_reverse(next_code[len]++, len); - - Tracecv(tree != static_ltree, (stderr,"\nn %3d %c l %2d c %4x (%x) ", - n, (isgraph(n) ? n : ' '), len, tree[n].Code, next_code[len]-1)); - } -} - -/* =========================================================================== - * Construct one Huffman tree and assigns the code bit strings and lengths. - * Update the total bit length for the current block. - * IN assertion: the field freq is set for all tree elements. - * OUT assertions: the fields len and code are set to the optimal bit length - * and corresponding code. The length opt_len is updated; static_len is - * also updated if stree is not null. The field max_code is set. - */ -local void build_tree(s, desc) - deflate_state *s; - tree_desc *desc; /* the tree descriptor */ -{ - ct_data *tree = desc->dyn_tree; - const ct_data *stree = desc->stat_desc->static_tree; - int elems = desc->stat_desc->elems; - int n, m; /* iterate over heap elements */ - int max_code = -1; /* largest code with non zero frequency */ - int node; /* new node being created */ - - /* Construct the initial heap, with least frequent element in - * heap[SMALLEST]. The sons of heap[n] are heap[2*n] and heap[2*n+1]. - * heap[0] is not used. - */ - s->heap_len = 0, s->heap_max = HEAP_SIZE; - - for (n = 0; n < elems; n++) { - if (tree[n].Freq != 0) { - s->heap[++(s->heap_len)] = max_code = n; - s->depth[n] = 0; - } else { - tree[n].Len = 0; - } - } - - /* The pkzip format requires that at least one distance code exists, - * and that at least one bit should be sent even if there is only one - * possible code. So to avoid special checks later on we force at least - * two codes of non zero frequency. - */ - while (s->heap_len < 2) { - node = s->heap[++(s->heap_len)] = (max_code < 2 ? ++max_code : 0); - tree[node].Freq = 1; - s->depth[node] = 0; - s->opt_len--; if (stree) s->static_len -= stree[node].Len; - /* node is 0 or 1 so it does not have extra bits */ - } - desc->max_code = max_code; - - /* The elements heap[heap_len/2+1 .. heap_len] are leaves of the tree, - * establish sub-heaps of increasing lengths: - */ - for (n = s->heap_len/2; n >= 1; n--) pqdownheap(s, tree, n); - - /* Construct the Huffman tree by repeatedly combining the least two - * frequent nodes. - */ - node = elems; /* next internal node of the tree */ - do { - pqremove(s, tree, n); /* n = node of least frequency */ - m = s->heap[SMALLEST]; /* m = node of next least frequency */ - - s->heap[--(s->heap_max)] = n; /* keep the nodes sorted by frequency */ - s->heap[--(s->heap_max)] = m; - - /* Create a new node father of n and m */ - tree[node].Freq = tree[n].Freq + tree[m].Freq; - s->depth[node] = (uch)((s->depth[n] >= s->depth[m] ? - s->depth[n] : s->depth[m]) + 1); - tree[n].Dad = tree[m].Dad = (ush)node; -#ifdef DUMP_BL_TREE - if (tree == s->bl_tree) { - fprintf(stderr,"\nnode %d(%d), sons %d(%d) %d(%d)", - node, tree[node].Freq, n, tree[n].Freq, m, tree[m].Freq); - } -#endif - /* and insert the new node in the heap */ - s->heap[SMALLEST] = node++; - pqdownheap(s, tree, SMALLEST); - - } while (s->heap_len >= 2); - - s->heap[--(s->heap_max)] = s->heap[SMALLEST]; - - /* At this point, the fields freq and dad are set. We can now - * generate the bit lengths. - */ - gen_bitlen(s, (tree_desc *)desc); - - /* The field len is now set, we can generate the bit codes */ - gen_codes ((ct_data *)tree, max_code, s->bl_count); -} - -/* =========================================================================== - * Scan a literal or distance tree to determine the frequencies of the codes - * in the bit length tree. - */ -local void scan_tree (s, tree, max_code) - deflate_state *s; - ct_data *tree; /* the tree to be scanned */ - int max_code; /* and its largest code of non zero frequency */ -{ - int n; /* iterates over all tree elements */ - int prevlen = -1; /* last emitted length */ - int curlen; /* length of current code */ - int nextlen = tree[0].Len; /* length of next code */ - int count = 0; /* repeat count of the current code */ - int max_count = 7; /* max repeat count */ - int min_count = 4; /* min repeat count */ - - if (nextlen == 0) max_count = 138, min_count = 3; - tree[max_code+1].Len = (ush)0xffff; /* guard */ - - for (n = 0; n <= max_code; n++) { - curlen = nextlen; nextlen = tree[n+1].Len; - if (++count < max_count && curlen == nextlen) { - continue; - } else if (count < min_count) { - s->bl_tree[curlen].Freq += count; - } else if (curlen != 0) { - if (curlen != prevlen) s->bl_tree[curlen].Freq++; - s->bl_tree[REP_3_6].Freq++; - } else if (count <= 10) { - s->bl_tree[REPZ_3_10].Freq++; - } else { - s->bl_tree[REPZ_11_138].Freq++; - } - count = 0; prevlen = curlen; - if (nextlen == 0) { - max_count = 138, min_count = 3; - } else if (curlen == nextlen) { - max_count = 6, min_count = 3; - } else { - max_count = 7, min_count = 4; - } - } -} - -/* =========================================================================== - * Send a literal or distance tree in compressed form, using the codes in - * bl_tree. - */ -local void send_tree (s, tree, max_code) - deflate_state *s; - ct_data *tree; /* the tree to be scanned */ - int max_code; /* and its largest code of non zero frequency */ -{ - int n; /* iterates over all tree elements */ - int prevlen = -1; /* last emitted length */ - int curlen; /* length of current code */ - int nextlen = tree[0].Len; /* length of next code */ - int count = 0; /* repeat count of the current code */ - int max_count = 7; /* max repeat count */ - int min_count = 4; /* min repeat count */ - - /* tree[max_code+1].Len = -1; */ /* guard already set */ - if (nextlen == 0) max_count = 138, min_count = 3; - - for (n = 0; n <= max_code; n++) { - curlen = nextlen; nextlen = tree[n+1].Len; - if (++count < max_count && curlen == nextlen) { - continue; - } else if (count < min_count) { - do { send_code(s, curlen, s->bl_tree); } while (--count != 0); - - } else if (curlen != 0) { - if (curlen != prevlen) { - send_code(s, curlen, s->bl_tree); count--; - } - Assert(count >= 3 && count <= 6, " 3_6?"); - send_code(s, REP_3_6, s->bl_tree); send_bits(s, count-3, 2); - - } else if (count <= 10) { - send_code(s, REPZ_3_10, s->bl_tree); send_bits(s, count-3, 3); - - } else { - send_code(s, REPZ_11_138, s->bl_tree); send_bits(s, count-11, 7); - } - count = 0; prevlen = curlen; - if (nextlen == 0) { - max_count = 138, min_count = 3; - } else if (curlen == nextlen) { - max_count = 6, min_count = 3; - } else { - max_count = 7, min_count = 4; - } - } -} - -/* =========================================================================== - * Construct the Huffman tree for the bit lengths and return the index in - * bl_order of the last bit length code to send. - */ -local int build_bl_tree(s) - deflate_state *s; -{ - int max_blindex; /* index of last bit length code of non zero freq */ - - /* Determine the bit length frequencies for literal and distance trees */ - scan_tree(s, (ct_data *)s->dyn_ltree, s->l_desc.max_code); - scan_tree(s, (ct_data *)s->dyn_dtree, s->d_desc.max_code); - - /* Build the bit length tree: */ - build_tree(s, (tree_desc *)(&(s->bl_desc))); - /* opt_len now includes the length of the tree representations, except - * the lengths of the bit lengths codes and the 5+5+4 bits for the counts. - */ - - /* Determine the number of bit length codes to send. The pkzip format - * requires that at least 4 bit length codes be sent. (appnote.txt says - * 3 but the actual value used is 4.) - */ - for (max_blindex = BL_CODES-1; max_blindex >= 3; max_blindex--) { - if (s->bl_tree[bl_order[max_blindex]].Len != 0) break; - } - /* Update opt_len to include the bit length tree and counts */ - s->opt_len += 3*(max_blindex+1) + 5+5+4; - Tracev((stderr, "\ndyn trees: dyn %ld, stat %ld", - s->opt_len, s->static_len)); - - return max_blindex; -} - -/* =========================================================================== - * Send the header for a block using dynamic Huffman trees: the counts, the - * lengths of the bit length codes, the literal tree and the distance tree. - * IN assertion: lcodes >= 257, dcodes >= 1, blcodes >= 4. - */ -local void send_all_trees(s, lcodes, dcodes, blcodes) - deflate_state *s; - int lcodes, dcodes, blcodes; /* number of codes for each tree */ -{ - int rank; /* index in bl_order */ - - Assert (lcodes >= 257 && dcodes >= 1 && blcodes >= 4, "not enough codes"); - Assert (lcodes <= L_CODES && dcodes <= D_CODES && blcodes <= BL_CODES, - "too many codes"); - Tracev((stderr, "\nbl counts: ")); - send_bits(s, lcodes-257, 5); /* not +255 as stated in appnote.txt */ - send_bits(s, dcodes-1, 5); - send_bits(s, blcodes-4, 4); /* not -3 as stated in appnote.txt */ - for (rank = 0; rank < blcodes; rank++) { - Tracev((stderr, "\nbl code %2d ", bl_order[rank])); - send_bits(s, s->bl_tree[bl_order[rank]].Len, 3); - } - Tracev((stderr, "\nbl tree: sent %ld", s->bits_sent)); - - send_tree(s, (ct_data *)s->dyn_ltree, lcodes-1); /* literal tree */ - Tracev((stderr, "\nlit tree: sent %ld", s->bits_sent)); - - send_tree(s, (ct_data *)s->dyn_dtree, dcodes-1); /* distance tree */ - Tracev((stderr, "\ndist tree: sent %ld", s->bits_sent)); -} - -/* =========================================================================== - * Send a stored block - */ -void ZLIB_INTERNAL _tr_stored_block(s, buf, stored_len, last) - deflate_state *s; - charf *buf; /* input block */ - ulg stored_len; /* length of input block */ - int last; /* one if this is the last block for a file */ -{ - send_bits(s, (STORED_BLOCK<<1)+last, 3); /* send block type */ -#ifdef DEBUG - s->compressed_len = (s->compressed_len + 3 + 7) & (ulg)~7L; - s->compressed_len += (stored_len + 4) << 3; -#endif - copy_block(s, buf, (unsigned)stored_len, 1); /* with header */ -} - -/* =========================================================================== - * Flush the bits in the bit buffer to pending output (leaves at most 7 bits) - */ -void ZLIB_INTERNAL _tr_flush_bits(s) - deflate_state *s; -{ - bi_flush(s); -} - -/* =========================================================================== - * Send one empty static block to give enough lookahead for inflate. - * This takes 10 bits, of which 7 may remain in the bit buffer. - */ -void ZLIB_INTERNAL _tr_align(s) - deflate_state *s; -{ - send_bits(s, STATIC_TREES<<1, 3); - send_code(s, END_BLOCK, static_ltree); -#ifdef DEBUG - s->compressed_len += 10L; /* 3 for block type, 7 for EOB */ -#endif - bi_flush(s); -} - -/* =========================================================================== - * Determine the best encoding for the current block: dynamic trees, static - * trees or store, and output the encoded block to the zip file. - */ -void ZLIB_INTERNAL _tr_flush_block(s, buf, stored_len, last) - deflate_state *s; - charf *buf; /* input block, or NULL if too old */ - ulg stored_len; /* length of input block */ - int last; /* one if this is the last block for a file */ -{ - ulg opt_lenb, static_lenb; /* opt_len and static_len in bytes */ - int max_blindex = 0; /* index of last bit length code of non zero freq */ - - /* Build the Huffman trees unless a stored block is forced */ - if (s->level > 0) { - - /* Check if the file is binary or text */ - if (s->strm->data_type == Z_UNKNOWN) - s->strm->data_type = detect_data_type(s); - - /* Construct the literal and distance trees */ - build_tree(s, (tree_desc *)(&(s->l_desc))); - Tracev((stderr, "\nlit data: dyn %ld, stat %ld", s->opt_len, - s->static_len)); - - build_tree(s, (tree_desc *)(&(s->d_desc))); - Tracev((stderr, "\ndist data: dyn %ld, stat %ld", s->opt_len, - s->static_len)); - /* At this point, opt_len and static_len are the total bit lengths of - * the compressed block data, excluding the tree representations. - */ - - /* Build the bit length tree for the above two trees, and get the index - * in bl_order of the last bit length code to send. - */ - max_blindex = build_bl_tree(s); - - /* Determine the best encoding. Compute the block lengths in bytes. */ - opt_lenb = (s->opt_len+3+7)>>3; - static_lenb = (s->static_len+3+7)>>3; - - Tracev((stderr, "\nopt %lu(%lu) stat %lu(%lu) stored %lu lit %u ", - opt_lenb, s->opt_len, static_lenb, s->static_len, stored_len, - s->last_lit)); - - if (static_lenb <= opt_lenb) opt_lenb = static_lenb; - - } else { - Assert(buf != (char*)0, "lost buf"); - opt_lenb = static_lenb = stored_len + 5; /* force a stored block */ - } - -#ifdef FORCE_STORED - if (buf != (char*)0) { /* force stored block */ -#else - if (stored_len+4 <= opt_lenb && buf != (char*)0) { - /* 4: two words for the lengths */ -#endif - /* The test buf != NULL is only necessary if LIT_BUFSIZE > WSIZE. - * Otherwise we can't have processed more than WSIZE input bytes since - * the last block flush, because compression would have been - * successful. If LIT_BUFSIZE <= WSIZE, it is never too late to - * transform a block into a stored block. - */ - _tr_stored_block(s, buf, stored_len, last); - -#ifdef FORCE_STATIC - } else if (static_lenb >= 0) { /* force static trees */ -#else - } else if (s->strategy == Z_FIXED || static_lenb == opt_lenb) { -#endif - send_bits(s, (STATIC_TREES<<1)+last, 3); - compress_block(s, (const ct_data *)static_ltree, - (const ct_data *)static_dtree); -#ifdef DEBUG - s->compressed_len += 3 + s->static_len; -#endif - } else { - send_bits(s, (DYN_TREES<<1)+last, 3); - send_all_trees(s, s->l_desc.max_code+1, s->d_desc.max_code+1, - max_blindex+1); - compress_block(s, (const ct_data *)s->dyn_ltree, - (const ct_data *)s->dyn_dtree); -#ifdef DEBUG - s->compressed_len += 3 + s->opt_len; -#endif - } - Assert (s->compressed_len == s->bits_sent, "bad compressed size"); - /* The above check is made mod 2^32, for files larger than 512 MB - * and uLong implemented on 32 bits. - */ - init_block(s); - - if (last) { - bi_windup(s); -#ifdef DEBUG - s->compressed_len += 7; /* align on byte boundary */ -#endif - } - Tracev((stderr,"\ncomprlen %lu(%lu) ", s->compressed_len>>3, - s->compressed_len-7*last)); -} - -/* =========================================================================== - * Save the match info and tally the frequency counts. Return true if - * the current block must be flushed. - */ -int ZLIB_INTERNAL _tr_tally (s, dist, lc) - deflate_state *s; - unsigned dist; /* distance of matched string */ - unsigned lc; /* match length-MIN_MATCH or unmatched char (if dist==0) */ -{ - s->d_buf[s->last_lit] = (ush)dist; - s->l_buf[s->last_lit++] = (uch)lc; - if (dist == 0) { - /* lc is the unmatched char */ - s->dyn_ltree[lc].Freq++; - } else { - s->matches++; - /* Here, lc is the match length - MIN_MATCH */ - dist--; /* dist = match distance - 1 */ - Assert((ush)dist < (ush)MAX_DIST(s) && - (ush)lc <= (ush)(MAX_MATCH-MIN_MATCH) && - (ush)d_code(dist) < (ush)D_CODES, "_tr_tally: bad match"); - - s->dyn_ltree[_length_code[lc]+LITERALS+1].Freq++; - s->dyn_dtree[d_code(dist)].Freq++; - } - -#ifdef TRUNCATE_BLOCK - /* Try to guess if it is profitable to stop the current block here */ - if ((s->last_lit & 0x1fff) == 0 && s->level > 2) { - /* Compute an upper bound for the compressed length */ - ulg out_length = (ulg)s->last_lit*8L; - ulg in_length = (ulg)((long)s->strstart - s->block_start); - int dcode; - for (dcode = 0; dcode < D_CODES; dcode++) { - out_length += (ulg)s->dyn_dtree[dcode].Freq * - (5L+extra_dbits[dcode]); - } - out_length >>= 3; - Tracev((stderr,"\nlast_lit %u, in %ld, out ~%ld(%ld%%) ", - s->last_lit, in_length, out_length, - 100L - out_length*100L/in_length)); - if (s->matches < s->last_lit/2 && out_length < in_length/2) return 1; - } -#endif - return (s->last_lit == s->lit_bufsize-1); - /* We avoid equality with lit_bufsize because of wraparound at 64K - * on 16 bit machines and because stored blocks are restricted to - * 64K-1 bytes. - */ -} - -/* =========================================================================== - * Send the block data compressed using the given Huffman trees - */ -local void compress_block(s, ltree, dtree) - deflate_state *s; - const ct_data *ltree; /* literal tree */ - const ct_data *dtree; /* distance tree */ -{ - unsigned dist; /* distance of matched string */ - int lc; /* match length or unmatched char (if dist == 0) */ - unsigned lx = 0; /* running index in l_buf */ - unsigned code; /* the code to send */ - int extra; /* number of extra bits to send */ - - if (s->last_lit != 0) do { - dist = s->d_buf[lx]; - lc = s->l_buf[lx++]; - if (dist == 0) { - send_code(s, lc, ltree); /* send a literal byte */ - Tracecv(isgraph(lc), (stderr," '%c' ", lc)); - } else { - /* Here, lc is the match length - MIN_MATCH */ - code = _length_code[lc]; - send_code(s, code+LITERALS+1, ltree); /* send the length code */ - extra = extra_lbits[code]; - if (extra != 0) { - lc -= base_length[code]; - send_bits(s, lc, extra); /* send the extra length bits */ - } - dist--; /* dist is now the match distance - 1 */ - code = d_code(dist); - Assert (code < D_CODES, "bad d_code"); - - send_code(s, code, dtree); /* send the distance code */ - extra = extra_dbits[code]; - if (extra != 0) { - dist -= base_dist[code]; - send_bits(s, dist, extra); /* send the extra distance bits */ - } - } /* literal or match pair ? */ - - /* Check that the overlay between pending_buf and d_buf+l_buf is ok: */ - Assert((uInt)(s->pending) < s->lit_bufsize + 2*lx, - "pendingBuf overflow"); - - } while (lx < s->last_lit); - - send_code(s, END_BLOCK, ltree); -} - -/* =========================================================================== - * Check if the data type is TEXT or BINARY, using the following algorithm: - * - TEXT if the two conditions below are satisfied: - * a) There are no non-portable control characters belonging to the - * "black list" (0..6, 14..25, 28..31). - * b) There is at least one printable character belonging to the - * "white list" (9 {TAB}, 10 {LF}, 13 {CR}, 32..255). - * - BINARY otherwise. - * - The following partially-portable control characters form a - * "gray list" that is ignored in this detection algorithm: - * (7 {BEL}, 8 {BS}, 11 {VT}, 12 {FF}, 26 {SUB}, 27 {ESC}). - * IN assertion: the fields Freq of dyn_ltree are set. - */ -local int detect_data_type(s) - deflate_state *s; -{ - /* black_mask is the bit mask of black-listed bytes - * set bits 0..6, 14..25, and 28..31 - * 0xf3ffc07f = binary 11110011111111111100000001111111 - */ - unsigned long black_mask = 0xf3ffc07fUL; - int n; - - /* Check for non-textual ("black-listed") bytes. */ - for (n = 0; n <= 31; n++, black_mask >>= 1) - if ((black_mask & 1) && (s->dyn_ltree[n].Freq != 0)) - return Z_BINARY; - - /* Check for textual ("white-listed") bytes. */ - if (s->dyn_ltree[9].Freq != 0 || s->dyn_ltree[10].Freq != 0 - || s->dyn_ltree[13].Freq != 0) - return Z_TEXT; - for (n = 32; n < LITERALS; n++) - if (s->dyn_ltree[n].Freq != 0) - return Z_TEXT; - - /* There are no "black-listed" or "white-listed" bytes: - * this stream either is empty or has tolerated ("gray-listed") bytes only. - */ - return Z_BINARY; -} - -/* =========================================================================== - * Reverse the first len bits of a code, using straightforward code (a faster - * method would use a table) - * IN assertion: 1 <= len <= 15 - */ -local unsigned bi_reverse(code, len) - unsigned code; /* the value to invert */ - int len; /* its bit length */ -{ - register unsigned res = 0; - do { - res |= code & 1; - code >>= 1, res <<= 1; - } while (--len > 0); - return res >> 1; -} - -/* =========================================================================== - * Flush the bit buffer, keeping at most 7 bits in it. - */ -local void bi_flush(s) - deflate_state *s; -{ - if (s->bi_valid == 16) { - put_short(s, s->bi_buf); - s->bi_buf = 0; - s->bi_valid = 0; - } else if (s->bi_valid >= 8) { - put_byte(s, (Byte)s->bi_buf); - s->bi_buf >>= 8; - s->bi_valid -= 8; - } -} - -/* =========================================================================== - * Flush the bit buffer and align the output on a byte boundary - */ -local void bi_windup(s) - deflate_state *s; -{ - if (s->bi_valid > 8) { - put_short(s, s->bi_buf); - } else if (s->bi_valid > 0) { - put_byte(s, (Byte)s->bi_buf); - } - s->bi_buf = 0; - s->bi_valid = 0; -#ifdef DEBUG - s->bits_sent = (s->bits_sent+7) & ~7; -#endif -} - -/* =========================================================================== - * Copy a stored block, storing first the length and its - * one's complement if requested. - */ -local void copy_block(s, buf, len, header) - deflate_state *s; - charf *buf; /* the input data */ - unsigned len; /* its length */ - int header; /* true if block header must be written */ -{ - bi_windup(s); /* align on byte boundary */ - - if (header) { - put_short(s, (ush)len); - put_short(s, (ush)~len); -#ifdef DEBUG - s->bits_sent += 2*16; -#endif - } -#ifdef DEBUG - s->bits_sent += (ulg)len<<3; -#endif - while (len--) { - put_byte(s, *buf++); - } -} diff --git a/src/utilfuns/zlib/trees.h b/src/utilfuns/zlib/trees.h deleted file mode 100644 index d35639d..0000000 --- a/src/utilfuns/zlib/trees.h +++ /dev/null @@ -1,128 +0,0 @@ -/* header created automatically with -DGEN_TREES_H */ - -local const ct_data static_ltree[L_CODES+2] = { -{{ 12},{ 8}}, {{140},{ 8}}, {{ 76},{ 8}}, {{204},{ 8}}, {{ 44},{ 8}}, -{{172},{ 8}}, {{108},{ 8}}, {{236},{ 8}}, {{ 28},{ 8}}, {{156},{ 8}}, -{{ 92},{ 8}}, {{220},{ 8}}, {{ 60},{ 8}}, {{188},{ 8}}, {{124},{ 8}}, -{{252},{ 8}}, {{ 2},{ 8}}, {{130},{ 8}}, {{ 66},{ 8}}, {{194},{ 8}}, -{{ 34},{ 8}}, {{162},{ 8}}, {{ 98},{ 8}}, {{226},{ 8}}, {{ 18},{ 8}}, -{{146},{ 8}}, {{ 82},{ 8}}, {{210},{ 8}}, {{ 50},{ 8}}, {{178},{ 8}}, -{{114},{ 8}}, {{242},{ 8}}, {{ 10},{ 8}}, {{138},{ 8}}, {{ 74},{ 8}}, -{{202},{ 8}}, {{ 42},{ 8}}, {{170},{ 8}}, {{106},{ 8}}, {{234},{ 8}}, -{{ 26},{ 8}}, {{154},{ 8}}, {{ 90},{ 8}}, {{218},{ 8}}, {{ 58},{ 8}}, -{{186},{ 8}}, {{122},{ 8}}, {{250},{ 8}}, {{ 6},{ 8}}, {{134},{ 8}}, -{{ 70},{ 8}}, {{198},{ 8}}, {{ 38},{ 8}}, {{166},{ 8}}, {{102},{ 8}}, -{{230},{ 8}}, {{ 22},{ 8}}, {{150},{ 8}}, {{ 86},{ 8}}, {{214},{ 8}}, -{{ 54},{ 8}}, {{182},{ 8}}, {{118},{ 8}}, {{246},{ 8}}, {{ 14},{ 8}}, -{{142},{ 8}}, {{ 78},{ 8}}, {{206},{ 8}}, {{ 46},{ 8}}, {{174},{ 8}}, -{{110},{ 8}}, {{238},{ 8}}, {{ 30},{ 8}}, {{158},{ 8}}, {{ 94},{ 8}}, -{{222},{ 8}}, {{ 62},{ 8}}, {{190},{ 8}}, {{126},{ 8}}, {{254},{ 8}}, -{{ 1},{ 8}}, {{129},{ 8}}, {{ 65},{ 8}}, {{193},{ 8}}, {{ 33},{ 8}}, -{{161},{ 8}}, {{ 97},{ 8}}, {{225},{ 8}}, {{ 17},{ 8}}, {{145},{ 8}}, -{{ 81},{ 8}}, {{209},{ 8}}, {{ 49},{ 8}}, {{177},{ 8}}, {{113},{ 8}}, -{{241},{ 8}}, {{ 9},{ 8}}, {{137},{ 8}}, {{ 73},{ 8}}, {{201},{ 8}}, -{{ 41},{ 8}}, {{169},{ 8}}, {{105},{ 8}}, {{233},{ 8}}, {{ 25},{ 8}}, -{{153},{ 8}}, {{ 89},{ 8}}, {{217},{ 8}}, {{ 57},{ 8}}, {{185},{ 8}}, -{{121},{ 8}}, {{249},{ 8}}, {{ 5},{ 8}}, {{133},{ 8}}, {{ 69},{ 8}}, -{{197},{ 8}}, {{ 37},{ 8}}, {{165},{ 8}}, {{101},{ 8}}, {{229},{ 8}}, -{{ 21},{ 8}}, {{149},{ 8}}, {{ 85},{ 8}}, {{213},{ 8}}, {{ 53},{ 8}}, -{{181},{ 8}}, {{117},{ 8}}, {{245},{ 8}}, {{ 13},{ 8}}, {{141},{ 8}}, -{{ 77},{ 8}}, {{205},{ 8}}, {{ 45},{ 8}}, {{173},{ 8}}, {{109},{ 8}}, -{{237},{ 8}}, {{ 29},{ 8}}, {{157},{ 8}}, {{ 93},{ 8}}, {{221},{ 8}}, -{{ 61},{ 8}}, {{189},{ 8}}, {{125},{ 8}}, {{253},{ 8}}, {{ 19},{ 9}}, -{{275},{ 9}}, {{147},{ 9}}, {{403},{ 9}}, {{ 83},{ 9}}, {{339},{ 9}}, -{{211},{ 9}}, {{467},{ 9}}, {{ 51},{ 9}}, {{307},{ 9}}, {{179},{ 9}}, -{{435},{ 9}}, {{115},{ 9}}, {{371},{ 9}}, {{243},{ 9}}, {{499},{ 9}}, -{{ 11},{ 9}}, {{267},{ 9}}, {{139},{ 9}}, {{395},{ 9}}, {{ 75},{ 9}}, -{{331},{ 9}}, {{203},{ 9}}, {{459},{ 9}}, {{ 43},{ 9}}, {{299},{ 9}}, -{{171},{ 9}}, {{427},{ 9}}, {{107},{ 9}}, {{363},{ 9}}, {{235},{ 9}}, -{{491},{ 9}}, {{ 27},{ 9}}, {{283},{ 9}}, {{155},{ 9}}, {{411},{ 9}}, -{{ 91},{ 9}}, {{347},{ 9}}, {{219},{ 9}}, {{475},{ 9}}, {{ 59},{ 9}}, -{{315},{ 9}}, {{187},{ 9}}, {{443},{ 9}}, {{123},{ 9}}, {{379},{ 9}}, -{{251},{ 9}}, {{507},{ 9}}, {{ 7},{ 9}}, {{263},{ 9}}, {{135},{ 9}}, -{{391},{ 9}}, {{ 71},{ 9}}, {{327},{ 9}}, {{199},{ 9}}, {{455},{ 9}}, -{{ 39},{ 9}}, {{295},{ 9}}, {{167},{ 9}}, {{423},{ 9}}, {{103},{ 9}}, -{{359},{ 9}}, {{231},{ 9}}, {{487},{ 9}}, {{ 23},{ 9}}, {{279},{ 9}}, -{{151},{ 9}}, {{407},{ 9}}, {{ 87},{ 9}}, {{343},{ 9}}, {{215},{ 9}}, -{{471},{ 9}}, {{ 55},{ 9}}, {{311},{ 9}}, {{183},{ 9}}, {{439},{ 9}}, -{{119},{ 9}}, {{375},{ 9}}, {{247},{ 9}}, {{503},{ 9}}, {{ 15},{ 9}}, -{{271},{ 9}}, {{143},{ 9}}, {{399},{ 9}}, {{ 79},{ 9}}, {{335},{ 9}}, -{{207},{ 9}}, {{463},{ 9}}, {{ 47},{ 9}}, {{303},{ 9}}, {{175},{ 9}}, -{{431},{ 9}}, {{111},{ 9}}, {{367},{ 9}}, {{239},{ 9}}, {{495},{ 9}}, -{{ 31},{ 9}}, {{287},{ 9}}, {{159},{ 9}}, {{415},{ 9}}, {{ 95},{ 9}}, -{{351},{ 9}}, {{223},{ 9}}, {{479},{ 9}}, {{ 63},{ 9}}, {{319},{ 9}}, -{{191},{ 9}}, {{447},{ 9}}, {{127},{ 9}}, {{383},{ 9}}, {{255},{ 9}}, -{{511},{ 9}}, {{ 0},{ 7}}, {{ 64},{ 7}}, {{ 32},{ 7}}, {{ 96},{ 7}}, -{{ 16},{ 7}}, {{ 80},{ 7}}, {{ 48},{ 7}}, {{112},{ 7}}, {{ 8},{ 7}}, -{{ 72},{ 7}}, {{ 40},{ 7}}, {{104},{ 7}}, {{ 24},{ 7}}, {{ 88},{ 7}}, -{{ 56},{ 7}}, {{120},{ 7}}, {{ 4},{ 7}}, {{ 68},{ 7}}, {{ 36},{ 7}}, -{{100},{ 7}}, {{ 20},{ 7}}, {{ 84},{ 7}}, {{ 52},{ 7}}, {{116},{ 7}}, -{{ 3},{ 8}}, {{131},{ 8}}, {{ 67},{ 8}}, {{195},{ 8}}, {{ 35},{ 8}}, -{{163},{ 8}}, {{ 99},{ 8}}, {{227},{ 8}} -}; - -local const ct_data static_dtree[D_CODES] = { -{{ 0},{ 5}}, {{16},{ 5}}, {{ 8},{ 5}}, {{24},{ 5}}, {{ 4},{ 5}}, -{{20},{ 5}}, {{12},{ 5}}, {{28},{ 5}}, {{ 2},{ 5}}, {{18},{ 5}}, -{{10},{ 5}}, {{26},{ 5}}, {{ 6},{ 5}}, {{22},{ 5}}, {{14},{ 5}}, -{{30},{ 5}}, {{ 1},{ 5}}, {{17},{ 5}}, {{ 9},{ 5}}, {{25},{ 5}}, -{{ 5},{ 5}}, {{21},{ 5}}, {{13},{ 5}}, {{29},{ 5}}, {{ 3},{ 5}}, -{{19},{ 5}}, {{11},{ 5}}, {{27},{ 5}}, {{ 7},{ 5}}, {{23},{ 5}} -}; - -const uch ZLIB_INTERNAL _dist_code[DIST_CODE_LEN] = { - 0, 1, 2, 3, 4, 4, 5, 5, 6, 6, 6, 6, 7, 7, 7, 7, 8, 8, 8, 8, - 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 9, 9, 10, 10, 10, 10, 10, 10, 10, 10, -10, 10, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, -11, 11, 11, 11, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, -12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 13, 13, 13, 13, -13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, -13, 13, 13, 13, 13, 13, 13, 13, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, -14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, -14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, -14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 15, 15, 15, 15, 15, 15, 15, 15, -15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, -15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, -15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 0, 0, 16, 17, -18, 18, 19, 19, 20, 20, 20, 20, 21, 21, 21, 21, 22, 22, 22, 22, 22, 22, 22, 22, -23, 23, 23, 23, 23, 23, 23, 23, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, -24, 24, 24, 24, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, -26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, -26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 27, 27, 27, 27, 27, 27, 27, 27, -27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, -27, 27, 27, 27, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, -28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, -28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, -28, 28, 28, 28, 28, 28, 28, 28, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, -29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, -29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, -29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29 -}; - -const uch ZLIB_INTERNAL _length_code[MAX_MATCH-MIN_MATCH+1]= { - 0, 1, 2, 3, 4, 5, 6, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 12, 12, -13, 13, 13, 13, 14, 14, 14, 14, 15, 15, 15, 15, 16, 16, 16, 16, 16, 16, 16, 16, -17, 17, 17, 17, 17, 17, 17, 17, 18, 18, 18, 18, 18, 18, 18, 18, 19, 19, 19, 19, -19, 19, 19, 19, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, -21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 22, 22, 22, 22, -22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 23, 23, 23, 23, 23, 23, 23, 23, -23, 23, 23, 23, 23, 23, 23, 23, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, -24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, -25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, -25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 26, 26, 26, 26, 26, 26, 26, 26, -26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, -26, 26, 26, 26, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, -27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 28 -}; - -local const int base_length[LENGTH_CODES] = { -0, 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 16, 20, 24, 28, 32, 40, 48, 56, -64, 80, 96, 112, 128, 160, 192, 224, 0 -}; - -local const int base_dist[D_CODES] = { - 0, 1, 2, 3, 4, 6, 8, 12, 16, 24, - 32, 48, 64, 96, 128, 192, 256, 384, 512, 768, - 1024, 1536, 2048, 3072, 4096, 6144, 8192, 12288, 16384, 24576 -}; - diff --git a/src/utilfuns/zlib/uncompr.c b/src/utilfuns/zlib/uncompr.c deleted file mode 100644 index 3d362d6..0000000 --- a/src/utilfuns/zlib/uncompr.c +++ /dev/null @@ -1,59 +0,0 @@ -/* uncompr.c -- decompress a memory buffer - * Copyright (C) 1995-2003, 2010 Jean-loup Gailly. - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* @(#) $Id: uncompr.c 2809 2013-06-10 06:24:27Z chrislit $ */ - -#define ZLIB_INTERNAL -#include "zlib.h" - -/* =========================================================================== - Decompresses the source buffer into the destination buffer. sourceLen is - the byte length of the source buffer. Upon entry, destLen is the total - size of the destination buffer, which must be large enough to hold the - entire uncompressed data. (The size of the uncompressed data must have - been saved previously by the compressor and transmitted to the decompressor - by some mechanism outside the scope of this compression library.) - Upon exit, destLen is the actual size of the compressed buffer. - - uncompress returns Z_OK if success, Z_MEM_ERROR if there was not - enough memory, Z_BUF_ERROR if there was not enough room in the output - buffer, or Z_DATA_ERROR if the input data was corrupted. -*/ -int ZEXPORT uncompress (dest, destLen, source, sourceLen) - Bytef *dest; - uLongf *destLen; - const Bytef *source; - uLong sourceLen; -{ - z_stream stream; - int err; - - stream.next_in = (z_const Bytef *)source; - stream.avail_in = (uInt)sourceLen; - /* Check for source > 64K on 16-bit machine: */ - if ((uLong)stream.avail_in != sourceLen) return Z_BUF_ERROR; - - stream.next_out = dest; - stream.avail_out = (uInt)*destLen; - if ((uLong)stream.avail_out != *destLen) return Z_BUF_ERROR; - - stream.zalloc = (alloc_func)0; - stream.zfree = (free_func)0; - - err = inflateInit(&stream); - if (err != Z_OK) return err; - - err = inflate(&stream, Z_FINISH); - if (err != Z_STREAM_END) { - inflateEnd(&stream); - if (err == Z_NEED_DICT || (err == Z_BUF_ERROR && stream.avail_in == 0)) - return Z_DATA_ERROR; - return err; - } - *destLen = stream.total_out; - - err = inflateEnd(&stream); - return err; -} diff --git a/src/utilfuns/zlib/zconf.h b/src/utilfuns/zlib/zconf.h deleted file mode 100644 index 9987a77..0000000 --- a/src/utilfuns/zlib/zconf.h +++ /dev/null @@ -1,511 +0,0 @@ -/* zconf.h -- configuration of the zlib compression library - * Copyright (C) 1995-2013 Jean-loup Gailly. - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* @(#) $Id$ */ - -#ifndef ZCONF_H -#define ZCONF_H - -/* - * If you *really* need a unique prefix for all types and library functions, - * compile with -DZ_PREFIX. The "standard" zlib should be compiled without it. - * Even better than compiling with -DZ_PREFIX would be to use configure to set - * this permanently in zconf.h using "./configure --zprefix". - */ -#ifdef Z_PREFIX /* may be set to #if 1 by ./configure */ -# define Z_PREFIX_SET - -/* all linked symbols */ -# define _dist_code z__dist_code -# define _length_code z__length_code -# define _tr_align z__tr_align -# define _tr_flush_bits z__tr_flush_bits -# define _tr_flush_block z__tr_flush_block -# define _tr_init z__tr_init -# define _tr_stored_block z__tr_stored_block -# define _tr_tally z__tr_tally -# define adler32 z_adler32 -# define adler32_combine z_adler32_combine -# define adler32_combine64 z_adler32_combine64 -# ifndef Z_SOLO -# define compress z_compress -# define compress2 z_compress2 -# define compressBound z_compressBound -# endif -# define crc32 z_crc32 -# define crc32_combine z_crc32_combine -# define crc32_combine64 z_crc32_combine64 -# define deflate z_deflate -# define deflateBound z_deflateBound -# define deflateCopy z_deflateCopy -# define deflateEnd z_deflateEnd -# define deflateInit2_ z_deflateInit2_ -# define deflateInit_ z_deflateInit_ -# define deflateParams z_deflateParams -# define deflatePending z_deflatePending -# define deflatePrime z_deflatePrime -# define deflateReset z_deflateReset -# define deflateResetKeep z_deflateResetKeep -# define deflateSetDictionary z_deflateSetDictionary -# define deflateSetHeader z_deflateSetHeader -# define deflateTune z_deflateTune -# define deflate_copyright z_deflate_copyright -# define get_crc_table z_get_crc_table -# ifndef Z_SOLO -# define gz_error z_gz_error -# define gz_intmax z_gz_intmax -# define gz_strwinerror z_gz_strwinerror -# define gzbuffer z_gzbuffer -# define gzclearerr z_gzclearerr -# define gzclose z_gzclose -# define gzclose_r z_gzclose_r -# define gzclose_w z_gzclose_w -# define gzdirect z_gzdirect -# define gzdopen z_gzdopen -# define gzeof z_gzeof -# define gzerror z_gzerror -# define gzflush z_gzflush -# define gzgetc z_gzgetc -# define gzgetc_ z_gzgetc_ -# define gzgets z_gzgets -# define gzoffset z_gzoffset -# define gzoffset64 z_gzoffset64 -# define gzopen z_gzopen -# define gzopen64 z_gzopen64 -# ifdef _WIN32 -# define gzopen_w z_gzopen_w -# endif -# define gzprintf z_gzprintf -# define gzvprintf z_gzvprintf -# define gzputc z_gzputc -# define gzputs z_gzputs -# define gzread z_gzread -# define gzrewind z_gzrewind -# define gzseek z_gzseek -# define gzseek64 z_gzseek64 -# define gzsetparams z_gzsetparams -# define gztell z_gztell -# define gztell64 z_gztell64 -# define gzungetc z_gzungetc -# define gzwrite z_gzwrite -# endif -# define inflate z_inflate -# define inflateBack z_inflateBack -# define inflateBackEnd z_inflateBackEnd -# define inflateBackInit_ z_inflateBackInit_ -# define inflateCopy z_inflateCopy -# define inflateEnd z_inflateEnd -# define inflateGetHeader z_inflateGetHeader -# define inflateInit2_ z_inflateInit2_ -# define inflateInit_ z_inflateInit_ -# define inflateMark z_inflateMark -# define inflatePrime z_inflatePrime -# define inflateReset z_inflateReset -# define inflateReset2 z_inflateReset2 -# define inflateSetDictionary z_inflateSetDictionary -# define inflateGetDictionary z_inflateGetDictionary -# define inflateSync z_inflateSync -# define inflateSyncPoint z_inflateSyncPoint -# define inflateUndermine z_inflateUndermine -# define inflateResetKeep z_inflateResetKeep -# define inflate_copyright z_inflate_copyright -# define inflate_fast z_inflate_fast -# define inflate_table z_inflate_table -# ifndef Z_SOLO -# define uncompress z_uncompress -# endif -# define zError z_zError -# ifndef Z_SOLO -# define zcalloc z_zcalloc -# define zcfree z_zcfree -# endif -# define zlibCompileFlags z_zlibCompileFlags -# define zlibVersion z_zlibVersion - -/* all zlib typedefs in zlib.h and zconf.h */ -# define Byte z_Byte -# define Bytef z_Bytef -# define alloc_func z_alloc_func -# define charf z_charf -# define free_func z_free_func -# ifndef Z_SOLO -# define gzFile z_gzFile -# endif -# define gz_header z_gz_header -# define gz_headerp z_gz_headerp -# define in_func z_in_func -# define intf z_intf -# define out_func z_out_func -# define uInt z_uInt -# define uIntf z_uIntf -# define uLong z_uLong -# define uLongf z_uLongf -# define voidp z_voidp -# define voidpc z_voidpc -# define voidpf z_voidpf - -/* all zlib structs in zlib.h and zconf.h */ -# define gz_header_s z_gz_header_s -# define internal_state z_internal_state - -#endif - -#if defined(__MSDOS__) && !defined(MSDOS) -# define MSDOS -#endif -#if (defined(OS_2) || defined(__OS2__)) && !defined(OS2) -# define OS2 -#endif -#if defined(_WINDOWS) && !defined(WINDOWS) -# define WINDOWS -#endif -#if defined(_WIN32) || defined(_WIN32_WCE) || defined(__WIN32__) -# ifndef WIN32 -# define WIN32 -# endif -#endif -#if (defined(MSDOS) || defined(OS2) || defined(WINDOWS)) && !defined(WIN32) -# if !defined(__GNUC__) && !defined(__FLAT__) && !defined(__386__) -# ifndef SYS16BIT -# define SYS16BIT -# endif -# endif -#endif - -/* - * Compile with -DMAXSEG_64K if the alloc function cannot allocate more - * than 64k bytes at a time (needed on systems with 16-bit int). - */ -#ifdef SYS16BIT -# define MAXSEG_64K -#endif -#ifdef MSDOS -# define UNALIGNED_OK -#endif - -#ifdef __STDC_VERSION__ -# ifndef STDC -# define STDC -# endif -# if __STDC_VERSION__ >= 199901L -# ifndef STDC99 -# define STDC99 -# endif -# endif -#endif -#if !defined(STDC) && (defined(__STDC__) || defined(__cplusplus)) -# define STDC -#endif -#if !defined(STDC) && (defined(__GNUC__) || defined(__BORLANDC__)) -# define STDC -#endif -#if !defined(STDC) && (defined(MSDOS) || defined(WINDOWS) || defined(WIN32)) -# define STDC -#endif -#if !defined(STDC) && (defined(OS2) || defined(__HOS_AIX__)) -# define STDC -#endif - -#if defined(__OS400__) && !defined(STDC) /* iSeries (formerly AS/400). */ -# define STDC -#endif - -#ifndef STDC -# ifndef const /* cannot use !defined(STDC) && !defined(const) on Mac */ -# define const /* note: need a more gentle solution here */ -# endif -#endif - -#if defined(ZLIB_CONST) && !defined(z_const) -# define z_const const -#else -# define z_const -#endif - -/* Some Mac compilers merge all .h files incorrectly: */ -#if defined(__MWERKS__)||defined(applec)||defined(THINK_C)||defined(__SC__) -# define NO_DUMMY_DECL -#endif - -/* Maximum value for memLevel in deflateInit2 */ -#ifndef MAX_MEM_LEVEL -# ifdef MAXSEG_64K -# define MAX_MEM_LEVEL 8 -# else -# define MAX_MEM_LEVEL 9 -# endif -#endif - -/* Maximum value for windowBits in deflateInit2 and inflateInit2. - * WARNING: reducing MAX_WBITS makes minigzip unable to extract .gz files - * created by gzip. (Files created by minigzip can still be extracted by - * gzip.) - */ -#ifndef MAX_WBITS -# define MAX_WBITS 15 /* 32K LZ77 window */ -#endif - -/* The memory requirements for deflate are (in bytes): - (1 << (windowBits+2)) + (1 << (memLevel+9)) - that is: 128K for windowBits=15 + 128K for memLevel = 8 (default values) - plus a few kilobytes for small objects. For example, if you want to reduce - the default memory requirements from 256K to 128K, compile with - make CFLAGS="-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7" - Of course this will generally degrade compression (there's no free lunch). - - The memory requirements for inflate are (in bytes) 1 << windowBits - that is, 32K for windowBits=15 (default value) plus a few kilobytes - for small objects. -*/ - - /* Type declarations */ - -#ifndef OF /* function prototypes */ -# ifdef STDC -# define OF(args) args -# else -# define OF(args) () -# endif -#endif - -#ifndef Z_ARG /* function prototypes for stdarg */ -# if defined(STDC) || defined(Z_HAVE_STDARG_H) -# define Z_ARG(args) args -# else -# define Z_ARG(args) () -# endif -#endif - -/* The following definitions for FAR are needed only for MSDOS mixed - * model programming (small or medium model with some far allocations). - * This was tested only with MSC; for other MSDOS compilers you may have - * to define NO_MEMCPY in zutil.h. If you don't need the mixed model, - * just define FAR to be empty. - */ -#ifdef SYS16BIT -# if defined(M_I86SM) || defined(M_I86MM) - /* MSC small or medium model */ -# define SMALL_MEDIUM -# ifdef _MSC_VER -# define FAR _far -# else -# define FAR far -# endif -# endif -# if (defined(__SMALL__) || defined(__MEDIUM__)) - /* Turbo C small or medium model */ -# define SMALL_MEDIUM -# ifdef __BORLANDC__ -# define FAR _far -# else -# define FAR far -# endif -# endif -#endif - -#if defined(WINDOWS) || defined(WIN32) - /* If building or using zlib as a DLL, define ZLIB_DLL. - * This is not mandatory, but it offers a little performance increase. - */ -# ifdef ZLIB_DLL -# if defined(WIN32) && (!defined(__BORLANDC__) || (__BORLANDC__ >= 0x500)) -# ifdef ZLIB_INTERNAL -# define ZEXTERN extern __declspec(dllexport) -# else -# define ZEXTERN extern __declspec(dllimport) -# endif -# endif -# endif /* ZLIB_DLL */ - /* If building or using zlib with the WINAPI/WINAPIV calling convention, - * define ZLIB_WINAPI. - * Caution: the standard ZLIB1.DLL is NOT compiled using ZLIB_WINAPI. - */ -# ifdef ZLIB_WINAPI -# ifdef FAR -# undef FAR -# endif -# include <windows.h> - /* No need for _export, use ZLIB.DEF instead. */ - /* For complete Windows compatibility, use WINAPI, not __stdcall. */ -# define ZEXPORT WINAPI -# ifdef WIN32 -# define ZEXPORTVA WINAPIV -# else -# define ZEXPORTVA FAR CDECL -# endif -# endif -#endif - -#if defined (__BEOS__) -# ifdef ZLIB_DLL -# ifdef ZLIB_INTERNAL -# define ZEXPORT __declspec(dllexport) -# define ZEXPORTVA __declspec(dllexport) -# else -# define ZEXPORT __declspec(dllimport) -# define ZEXPORTVA __declspec(dllimport) -# endif -# endif -#endif - -#ifndef ZEXTERN -# define ZEXTERN extern -#endif -#ifndef ZEXPORT -# define ZEXPORT -#endif -#ifndef ZEXPORTVA -# define ZEXPORTVA -#endif - -#ifndef FAR -# define FAR -#endif - -#if !defined(__MACTYPES__) -typedef unsigned char Byte; /* 8 bits */ -#endif -typedef unsigned int uInt; /* 16 bits or more */ -typedef unsigned long uLong; /* 32 bits or more */ - -#ifdef SMALL_MEDIUM - /* Borland C/C++ and some old MSC versions ignore FAR inside typedef */ -# define Bytef Byte FAR -#else - typedef Byte FAR Bytef; -#endif -typedef char FAR charf; -typedef int FAR intf; -typedef uInt FAR uIntf; -typedef uLong FAR uLongf; - -#ifdef STDC - typedef void const *voidpc; - typedef void FAR *voidpf; - typedef void *voidp; -#else - typedef Byte const *voidpc; - typedef Byte FAR *voidpf; - typedef Byte *voidp; -#endif - -#if !defined(Z_U4) && !defined(Z_SOLO) && defined(STDC) -# include <limits.h> -# if (UINT_MAX == 0xffffffffUL) -# define Z_U4 unsigned -# elif (ULONG_MAX == 0xffffffffUL) -# define Z_U4 unsigned long -# elif (USHRT_MAX == 0xffffffffUL) -# define Z_U4 unsigned short -# endif -#endif - -#ifdef Z_U4 - typedef Z_U4 z_crc_t; -#else - typedef unsigned long z_crc_t; -#endif - -#ifdef HAVE_UNISTD_H /* may be set to #if 1 by ./configure */ -# define Z_HAVE_UNISTD_H -#endif - -#ifdef HAVE_STDARG_H /* may be set to #if 1 by ./configure */ -# define Z_HAVE_STDARG_H -#endif - -#ifdef STDC -# ifndef Z_SOLO -# include <sys/types.h> /* for off_t */ -# endif -#endif - -#if defined(STDC) || defined(Z_HAVE_STDARG_H) -# ifndef Z_SOLO -# include <stdarg.h> /* for va_list */ -# endif -#endif - -#ifdef _WIN32 -# ifndef Z_SOLO -# include <stddef.h> /* for wchar_t */ -# endif -#endif - -/* a little trick to accommodate both "#define _LARGEFILE64_SOURCE" and - * "#define _LARGEFILE64_SOURCE 1" as requesting 64-bit operations, (even - * though the former does not conform to the LFS document), but considering - * both "#undef _LARGEFILE64_SOURCE" and "#define _LARGEFILE64_SOURCE 0" as - * equivalently requesting no 64-bit operations - */ -#if defined(_LARGEFILE64_SOURCE) && -_LARGEFILE64_SOURCE - -1 == 1 -# undef _LARGEFILE64_SOURCE -#endif - -#if defined(__WATCOMC__) && !defined(Z_HAVE_UNISTD_H) -# define Z_HAVE_UNISTD_H -#endif -#ifndef Z_SOLO -# if defined(Z_HAVE_UNISTD_H) || defined(_LARGEFILE64_SOURCE) -# include <unistd.h> /* for SEEK_*, off_t, and _LFS64_LARGEFILE */ -# ifdef VMS -# include <unixio.h> /* for off_t */ -# endif -# ifndef z_off_t -# define z_off_t off_t -# endif -# endif -#endif - -#if defined(_LFS64_LARGEFILE) && _LFS64_LARGEFILE-0 -# define Z_LFS64 -#endif - -#if defined(_LARGEFILE64_SOURCE) && defined(Z_LFS64) -# define Z_LARGE64 -#endif - -#if defined(_FILE_OFFSET_BITS) && _FILE_OFFSET_BITS-0 == 64 && defined(Z_LFS64) -# define Z_WANT64 -#endif - -#if !defined(SEEK_SET) && !defined(Z_SOLO) -# define SEEK_SET 0 /* Seek from beginning of file. */ -# define SEEK_CUR 1 /* Seek from current position. */ -# define SEEK_END 2 /* Set file pointer to EOF plus "offset" */ -#endif - -#ifndef z_off_t -# define z_off_t long -#endif - -#if !defined(_WIN32) && defined(Z_LARGE64) -# define z_off64_t off64_t -#else -# if defined(_WIN32) && !defined(__GNUC__) && !defined(Z_SOLO) -# define z_off64_t __int64 -# else -# define z_off64_t z_off_t -# endif -#endif - -/* MVS linker does not support external names larger than 8 bytes */ -#if defined(__MVS__) - #pragma map(deflateInit_,"DEIN") - #pragma map(deflateInit2_,"DEIN2") - #pragma map(deflateEnd,"DEEND") - #pragma map(deflateBound,"DEBND") - #pragma map(inflateInit_,"ININ") - #pragma map(inflateInit2_,"ININ2") - #pragma map(inflateEnd,"INEND") - #pragma map(inflateSync,"INSY") - #pragma map(inflateSetDictionary,"INSEDI") - #pragma map(compressBound,"CMBND") - #pragma map(inflate_table,"INTABL") - #pragma map(inflate_fast,"INFA") - #pragma map(inflate_copyright,"INCOPY") -#endif - -#endif /* ZCONF_H */ diff --git a/src/utilfuns/zlib/zlib.h b/src/utilfuns/zlib/zlib.h deleted file mode 100644 index 3e0c767..0000000 --- a/src/utilfuns/zlib/zlib.h +++ /dev/null @@ -1,1768 +0,0 @@ -/* zlib.h -- interface of the 'zlib' general purpose compression library - version 1.2.8, April 28th, 2013 - - Copyright (C) 1995-2013 Jean-loup Gailly and Mark Adler - - This software is provided 'as-is', without any express or implied - warranty. In no event will the authors be held liable for any damages - arising from the use of this software. - - Permission is granted to anyone to use this software for any purpose, - including commercial applications, and to alter it and redistribute it - freely, subject to the following restrictions: - - 1. The origin of this software must not be misrepresented; you must not - claim that you wrote the original software. If you use this software - in a product, an acknowledgment in the product documentation would be - appreciated but is not required. - 2. Altered source versions must be plainly marked as such, and must not be - misrepresented as being the original software. - 3. This notice may not be removed or altered from any source distribution. - - Jean-loup Gailly Mark Adler - jloup@gzip.org madler@alumni.caltech.edu - - - The data format used by the zlib library is described by RFCs (Request for - Comments) 1950 to 1952 in the files http://tools.ietf.org/html/rfc1950 - (zlib format), rfc1951 (deflate format) and rfc1952 (gzip format). -*/ - -#ifndef ZLIB_H -#define ZLIB_H - -#include "zconf.h" - -#ifdef __cplusplus -extern "C" { -#endif - -#define ZLIB_VERSION "1.2.8" -#define ZLIB_VERNUM 0x1280 -#define ZLIB_VER_MAJOR 1 -#define ZLIB_VER_MINOR 2 -#define ZLIB_VER_REVISION 8 -#define ZLIB_VER_SUBREVISION 0 - -/* - The 'zlib' compression library provides in-memory compression and - decompression functions, including integrity checks of the uncompressed data. - This version of the library supports only one compression method (deflation) - but other algorithms will be added later and will have the same stream - interface. - - Compression can be done in a single step if the buffers are large enough, - or can be done by repeated calls of the compression function. In the latter - case, the application must provide more input and/or consume the output - (providing more output space) before each call. - - The compressed data format used by default by the in-memory functions is - the zlib format, which is a zlib wrapper documented in RFC 1950, wrapped - around a deflate stream, which is itself documented in RFC 1951. - - The library also supports reading and writing files in gzip (.gz) format - with an interface similar to that of stdio using the functions that start - with "gz". The gzip format is different from the zlib format. gzip is a - gzip wrapper, documented in RFC 1952, wrapped around a deflate stream. - - This library can optionally read and write gzip streams in memory as well. - - The zlib format was designed to be compact and fast for use in memory - and on communications channels. The gzip format was designed for single- - file compression on file systems, has a larger header than zlib to maintain - directory information, and uses a different, slower check method than zlib. - - The library does not install any signal handler. The decoder checks - the consistency of the compressed data, so the library should never crash - even in case of corrupted input. -*/ - -typedef voidpf (*alloc_func) OF((voidpf opaque, uInt items, uInt size)); -typedef void (*free_func) OF((voidpf opaque, voidpf address)); - -struct internal_state; - -typedef struct z_stream_s { - z_const Bytef *next_in; /* next input byte */ - uInt avail_in; /* number of bytes available at next_in */ - uLong total_in; /* total number of input bytes read so far */ - - Bytef *next_out; /* next output byte should be put there */ - uInt avail_out; /* remaining free space at next_out */ - uLong total_out; /* total number of bytes output so far */ - - z_const char *msg; /* last error message, NULL if no error */ - struct internal_state FAR *state; /* not visible by applications */ - - alloc_func zalloc; /* used to allocate the internal state */ - free_func zfree; /* used to free the internal state */ - voidpf opaque; /* private data object passed to zalloc and zfree */ - - int data_type; /* best guess about the data type: binary or text */ - uLong adler; /* adler32 value of the uncompressed data */ - uLong reserved; /* reserved for future use */ -} z_stream; - -typedef z_stream FAR *z_streamp; - -/* - gzip header information passed to and from zlib routines. See RFC 1952 - for more details on the meanings of these fields. -*/ -typedef struct gz_header_s { - int text; /* true if compressed data believed to be text */ - uLong time; /* modification time */ - int xflags; /* extra flags (not used when writing a gzip file) */ - int os; /* operating system */ - Bytef *extra; /* pointer to extra field or Z_NULL if none */ - uInt extra_len; /* extra field length (valid if extra != Z_NULL) */ - uInt extra_max; /* space at extra (only when reading header) */ - Bytef *name; /* pointer to zero-terminated file name or Z_NULL */ - uInt name_max; /* space at name (only when reading header) */ - Bytef *comment; /* pointer to zero-terminated comment or Z_NULL */ - uInt comm_max; /* space at comment (only when reading header) */ - int hcrc; /* true if there was or will be a header crc */ - int done; /* true when done reading gzip header (not used - when writing a gzip file) */ -} gz_header; - -typedef gz_header FAR *gz_headerp; - -/* - The application must update next_in and avail_in when avail_in has dropped - to zero. It must update next_out and avail_out when avail_out has dropped - to zero. The application must initialize zalloc, zfree and opaque before - calling the init function. All other fields are set by the compression - library and must not be updated by the application. - - The opaque value provided by the application will be passed as the first - parameter for calls of zalloc and zfree. This can be useful for custom - memory management. The compression library attaches no meaning to the - opaque value. - - zalloc must return Z_NULL if there is not enough memory for the object. - If zlib is used in a multi-threaded application, zalloc and zfree must be - thread safe. - - On 16-bit systems, the functions zalloc and zfree must be able to allocate - exactly 65536 bytes, but will not be required to allocate more than this if - the symbol MAXSEG_64K is defined (see zconf.h). WARNING: On MSDOS, pointers - returned by zalloc for objects of exactly 65536 bytes *must* have their - offset normalized to zero. The default allocation function provided by this - library ensures this (see zutil.c). To reduce memory requirements and avoid - any allocation of 64K objects, at the expense of compression ratio, compile - the library with -DMAX_WBITS=14 (see zconf.h). - - The fields total_in and total_out can be used for statistics or progress - reports. After compression, total_in holds the total size of the - uncompressed data and may be saved for use in the decompressor (particularly - if the decompressor wants to decompress everything in a single step). -*/ - - /* constants */ - -#define Z_NO_FLUSH 0 -#define Z_PARTIAL_FLUSH 1 -#define Z_SYNC_FLUSH 2 -#define Z_FULL_FLUSH 3 -#define Z_FINISH 4 -#define Z_BLOCK 5 -#define Z_TREES 6 -/* Allowed flush values; see deflate() and inflate() below for details */ - -#define Z_OK 0 -#define Z_STREAM_END 1 -#define Z_NEED_DICT 2 -#define Z_ERRNO (-1) -#define Z_STREAM_ERROR (-2) -#define Z_DATA_ERROR (-3) -#define Z_MEM_ERROR (-4) -#define Z_BUF_ERROR (-5) -#define Z_VERSION_ERROR (-6) -/* Return codes for the compression/decompression functions. Negative values - * are errors, positive values are used for special but normal events. - */ - -#define Z_NO_COMPRESSION 0 -#define Z_BEST_SPEED 1 -#define Z_BEST_COMPRESSION 9 -#define Z_DEFAULT_COMPRESSION (-1) -/* compression levels */ - -#define Z_FILTERED 1 -#define Z_HUFFMAN_ONLY 2 -#define Z_RLE 3 -#define Z_FIXED 4 -#define Z_DEFAULT_STRATEGY 0 -/* compression strategy; see deflateInit2() below for details */ - -#define Z_BINARY 0 -#define Z_TEXT 1 -#define Z_ASCII Z_TEXT /* for compatibility with 1.2.2 and earlier */ -#define Z_UNKNOWN 2 -/* Possible values of the data_type field (though see inflate()) */ - -#define Z_DEFLATED 8 -/* The deflate compression method (the only one supported in this version) */ - -#define Z_NULL 0 /* for initializing zalloc, zfree, opaque */ - -#define zlib_version zlibVersion() -/* for compatibility with versions < 1.0.2 */ - - - /* basic functions */ - -ZEXTERN const char * ZEXPORT zlibVersion OF((void)); -/* The application can compare zlibVersion and ZLIB_VERSION for consistency. - If the first character differs, the library code actually used is not - compatible with the zlib.h header file used by the application. This check - is automatically made by deflateInit and inflateInit. - */ - -/* -ZEXTERN int ZEXPORT deflateInit OF((z_streamp strm, int level)); - - Initializes the internal stream state for compression. The fields - zalloc, zfree and opaque must be initialized before by the caller. If - zalloc and zfree are set to Z_NULL, deflateInit updates them to use default - allocation functions. - - The compression level must be Z_DEFAULT_COMPRESSION, or between 0 and 9: - 1 gives best speed, 9 gives best compression, 0 gives no compression at all - (the input data is simply copied a block at a time). Z_DEFAULT_COMPRESSION - requests a default compromise between speed and compression (currently - equivalent to level 6). - - deflateInit returns Z_OK if success, Z_MEM_ERROR if there was not enough - memory, Z_STREAM_ERROR if level is not a valid compression level, or - Z_VERSION_ERROR if the zlib library version (zlib_version) is incompatible - with the version assumed by the caller (ZLIB_VERSION). msg is set to null - if there is no error message. deflateInit does not perform any compression: - this will be done by deflate(). -*/ - - -ZEXTERN int ZEXPORT deflate OF((z_streamp strm, int flush)); -/* - deflate compresses as much data as possible, and stops when the input - buffer becomes empty or the output buffer becomes full. It may introduce - some output latency (reading input without producing any output) except when - forced to flush. - - The detailed semantics are as follows. deflate performs one or both of the - following actions: - - - Compress more input starting at next_in and update next_in and avail_in - accordingly. If not all input can be processed (because there is not - enough room in the output buffer), next_in and avail_in are updated and - processing will resume at this point for the next call of deflate(). - - - Provide more output starting at next_out and update next_out and avail_out - accordingly. This action is forced if the parameter flush is non zero. - Forcing flush frequently degrades the compression ratio, so this parameter - should be set only when necessary (in interactive applications). Some - output may be provided even if flush is not set. - - Before the call of deflate(), the application should ensure that at least - one of the actions is possible, by providing more input and/or consuming more - output, and updating avail_in or avail_out accordingly; avail_out should - never be zero before the call. The application can consume the compressed - output when it wants, for example when the output buffer is full (avail_out - == 0), or after each call of deflate(). If deflate returns Z_OK and with - zero avail_out, it must be called again after making room in the output - buffer because there might be more output pending. - - Normally the parameter flush is set to Z_NO_FLUSH, which allows deflate to - decide how much data to accumulate before producing output, in order to - maximize compression. - - If the parameter flush is set to Z_SYNC_FLUSH, all pending output is - flushed to the output buffer and the output is aligned on a byte boundary, so - that the decompressor can get all input data available so far. (In - particular avail_in is zero after the call if enough output space has been - provided before the call.) Flushing may degrade compression for some - compression algorithms and so it should be used only when necessary. This - completes the current deflate block and follows it with an empty stored block - that is three bits plus filler bits to the next byte, followed by four bytes - (00 00 ff ff). - - If flush is set to Z_PARTIAL_FLUSH, all pending output is flushed to the - output buffer, but the output is not aligned to a byte boundary. All of the - input data so far will be available to the decompressor, as for Z_SYNC_FLUSH. - This completes the current deflate block and follows it with an empty fixed - codes block that is 10 bits long. This assures that enough bytes are output - in order for the decompressor to finish the block before the empty fixed code - block. - - If flush is set to Z_BLOCK, a deflate block is completed and emitted, as - for Z_SYNC_FLUSH, but the output is not aligned on a byte boundary, and up to - seven bits of the current block are held to be written as the next byte after - the next deflate block is completed. In this case, the decompressor may not - be provided enough bits at this point in order to complete decompression of - the data provided so far to the compressor. It may need to wait for the next - block to be emitted. This is for advanced applications that need to control - the emission of deflate blocks. - - If flush is set to Z_FULL_FLUSH, all output is flushed as with - Z_SYNC_FLUSH, and the compression state is reset so that decompression can - restart from this point if previous compressed data has been damaged or if - random access is desired. Using Z_FULL_FLUSH too often can seriously degrade - compression. - - If deflate returns with avail_out == 0, this function must be called again - with the same value of the flush parameter and more output space (updated - avail_out), until the flush is complete (deflate returns with non-zero - avail_out). In the case of a Z_FULL_FLUSH or Z_SYNC_FLUSH, make sure that - avail_out is greater than six to avoid repeated flush markers due to - avail_out == 0 on return. - - If the parameter flush is set to Z_FINISH, pending input is processed, - pending output is flushed and deflate returns with Z_STREAM_END if there was - enough output space; if deflate returns with Z_OK, this function must be - called again with Z_FINISH and more output space (updated avail_out) but no - more input data, until it returns with Z_STREAM_END or an error. After - deflate has returned Z_STREAM_END, the only possible operations on the stream - are deflateReset or deflateEnd. - - Z_FINISH can be used immediately after deflateInit if all the compression - is to be done in a single step. In this case, avail_out must be at least the - value returned by deflateBound (see below). Then deflate is guaranteed to - return Z_STREAM_END. If not enough output space is provided, deflate will - not return Z_STREAM_END, and it must be called again as described above. - - deflate() sets strm->adler to the adler32 checksum of all input read - so far (that is, total_in bytes). - - deflate() may update strm->data_type if it can make a good guess about - the input data type (Z_BINARY or Z_TEXT). In doubt, the data is considered - binary. This field is only for information purposes and does not affect the - compression algorithm in any manner. - - deflate() returns Z_OK if some progress has been made (more input - processed or more output produced), Z_STREAM_END if all input has been - consumed and all output has been produced (only when flush is set to - Z_FINISH), Z_STREAM_ERROR if the stream state was inconsistent (for example - if next_in or next_out was Z_NULL), Z_BUF_ERROR if no progress is possible - (for example avail_in or avail_out was zero). Note that Z_BUF_ERROR is not - fatal, and deflate() can be called again with more input and more output - space to continue compressing. -*/ - - -ZEXTERN int ZEXPORT deflateEnd OF((z_streamp strm)); -/* - All dynamically allocated data structures for this stream are freed. - This function discards any unprocessed input and does not flush any pending - output. - - deflateEnd returns Z_OK if success, Z_STREAM_ERROR if the - stream state was inconsistent, Z_DATA_ERROR if the stream was freed - prematurely (some input or output was discarded). In the error case, msg - may be set but then points to a static string (which must not be - deallocated). -*/ - - -/* -ZEXTERN int ZEXPORT inflateInit OF((z_streamp strm)); - - Initializes the internal stream state for decompression. The fields - next_in, avail_in, zalloc, zfree and opaque must be initialized before by - the caller. If next_in is not Z_NULL and avail_in is large enough (the - exact value depends on the compression method), inflateInit determines the - compression method from the zlib header and allocates all data structures - accordingly; otherwise the allocation will be deferred to the first call of - inflate. If zalloc and zfree are set to Z_NULL, inflateInit updates them to - use default allocation functions. - - inflateInit returns Z_OK if success, Z_MEM_ERROR if there was not enough - memory, Z_VERSION_ERROR if the zlib library version is incompatible with the - version assumed by the caller, or Z_STREAM_ERROR if the parameters are - invalid, such as a null pointer to the structure. msg is set to null if - there is no error message. inflateInit does not perform any decompression - apart from possibly reading the zlib header if present: actual decompression - will be done by inflate(). (So next_in and avail_in may be modified, but - next_out and avail_out are unused and unchanged.) The current implementation - of inflateInit() does not process any header information -- that is deferred - until inflate() is called. -*/ - - -ZEXTERN int ZEXPORT inflate OF((z_streamp strm, int flush)); -/* - inflate decompresses as much data as possible, and stops when the input - buffer becomes empty or the output buffer becomes full. It may introduce - some output latency (reading input without producing any output) except when - forced to flush. - - The detailed semantics are as follows. inflate performs one or both of the - following actions: - - - Decompress more input starting at next_in and update next_in and avail_in - accordingly. If not all input can be processed (because there is not - enough room in the output buffer), next_in is updated and processing will - resume at this point for the next call of inflate(). - - - Provide more output starting at next_out and update next_out and avail_out - accordingly. inflate() provides as much output as possible, until there is - no more input data or no more space in the output buffer (see below about - the flush parameter). - - Before the call of inflate(), the application should ensure that at least - one of the actions is possible, by providing more input and/or consuming more - output, and updating the next_* and avail_* values accordingly. The - application can consume the uncompressed output when it wants, for example - when the output buffer is full (avail_out == 0), or after each call of - inflate(). If inflate returns Z_OK and with zero avail_out, it must be - called again after making room in the output buffer because there might be - more output pending. - - The flush parameter of inflate() can be Z_NO_FLUSH, Z_SYNC_FLUSH, Z_FINISH, - Z_BLOCK, or Z_TREES. Z_SYNC_FLUSH requests that inflate() flush as much - output as possible to the output buffer. Z_BLOCK requests that inflate() - stop if and when it gets to the next deflate block boundary. When decoding - the zlib or gzip format, this will cause inflate() to return immediately - after the header and before the first block. When doing a raw inflate, - inflate() will go ahead and process the first block, and will return when it - gets to the end of that block, or when it runs out of data. - - The Z_BLOCK option assists in appending to or combining deflate streams. - Also to assist in this, on return inflate() will set strm->data_type to the - number of unused bits in the last byte taken from strm->next_in, plus 64 if - inflate() is currently decoding the last block in the deflate stream, plus - 128 if inflate() returned immediately after decoding an end-of-block code or - decoding the complete header up to just before the first byte of the deflate - stream. The end-of-block will not be indicated until all of the uncompressed - data from that block has been written to strm->next_out. The number of - unused bits may in general be greater than seven, except when bit 7 of - data_type is set, in which case the number of unused bits will be less than - eight. data_type is set as noted here every time inflate() returns for all - flush options, and so can be used to determine the amount of currently - consumed input in bits. - - The Z_TREES option behaves as Z_BLOCK does, but it also returns when the - end of each deflate block header is reached, before any actual data in that - block is decoded. This allows the caller to determine the length of the - deflate block header for later use in random access within a deflate block. - 256 is added to the value of strm->data_type when inflate() returns - immediately after reaching the end of the deflate block header. - - inflate() should normally be called until it returns Z_STREAM_END or an - error. However if all decompression is to be performed in a single step (a - single call of inflate), the parameter flush should be set to Z_FINISH. In - this case all pending input is processed and all pending output is flushed; - avail_out must be large enough to hold all of the uncompressed data for the - operation to complete. (The size of the uncompressed data may have been - saved by the compressor for this purpose.) The use of Z_FINISH is not - required to perform an inflation in one step. However it may be used to - inform inflate that a faster approach can be used for the single inflate() - call. Z_FINISH also informs inflate to not maintain a sliding window if the - stream completes, which reduces inflate's memory footprint. If the stream - does not complete, either because not all of the stream is provided or not - enough output space is provided, then a sliding window will be allocated and - inflate() can be called again to continue the operation as if Z_NO_FLUSH had - been used. - - In this implementation, inflate() always flushes as much output as - possible to the output buffer, and always uses the faster approach on the - first call. So the effects of the flush parameter in this implementation are - on the return value of inflate() as noted below, when inflate() returns early - when Z_BLOCK or Z_TREES is used, and when inflate() avoids the allocation of - memory for a sliding window when Z_FINISH is used. - - If a preset dictionary is needed after this call (see inflateSetDictionary - below), inflate sets strm->adler to the Adler-32 checksum of the dictionary - chosen by the compressor and returns Z_NEED_DICT; otherwise it sets - strm->adler to the Adler-32 checksum of all output produced so far (that is, - total_out bytes) and returns Z_OK, Z_STREAM_END or an error code as described - below. At the end of the stream, inflate() checks that its computed adler32 - checksum is equal to that saved by the compressor and returns Z_STREAM_END - only if the checksum is correct. - - inflate() can decompress and check either zlib-wrapped or gzip-wrapped - deflate data. The header type is detected automatically, if requested when - initializing with inflateInit2(). Any information contained in the gzip - header is not retained, so applications that need that information should - instead use raw inflate, see inflateInit2() below, or inflateBack() and - perform their own processing of the gzip header and trailer. When processing - gzip-wrapped deflate data, strm->adler32 is set to the CRC-32 of the output - producted so far. The CRC-32 is checked against the gzip trailer. - - inflate() returns Z_OK if some progress has been made (more input processed - or more output produced), Z_STREAM_END if the end of the compressed data has - been reached and all uncompressed output has been produced, Z_NEED_DICT if a - preset dictionary is needed at this point, Z_DATA_ERROR if the input data was - corrupted (input stream not conforming to the zlib format or incorrect check - value), Z_STREAM_ERROR if the stream structure was inconsistent (for example - next_in or next_out was Z_NULL), Z_MEM_ERROR if there was not enough memory, - Z_BUF_ERROR if no progress is possible or if there was not enough room in the - output buffer when Z_FINISH is used. Note that Z_BUF_ERROR is not fatal, and - inflate() can be called again with more input and more output space to - continue decompressing. If Z_DATA_ERROR is returned, the application may - then call inflateSync() to look for a good compression block if a partial - recovery of the data is desired. -*/ - - -ZEXTERN int ZEXPORT inflateEnd OF((z_streamp strm)); -/* - All dynamically allocated data structures for this stream are freed. - This function discards any unprocessed input and does not flush any pending - output. - - inflateEnd returns Z_OK if success, Z_STREAM_ERROR if the stream state - was inconsistent. In the error case, msg may be set but then points to a - static string (which must not be deallocated). -*/ - - - /* Advanced functions */ - -/* - The following functions are needed only in some special applications. -*/ - -/* -ZEXTERN int ZEXPORT deflateInit2 OF((z_streamp strm, - int level, - int method, - int windowBits, - int memLevel, - int strategy)); - - This is another version of deflateInit with more compression options. The - fields next_in, zalloc, zfree and opaque must be initialized before by the - caller. - - The method parameter is the compression method. It must be Z_DEFLATED in - this version of the library. - - The windowBits parameter is the base two logarithm of the window size - (the size of the history buffer). It should be in the range 8..15 for this - version of the library. Larger values of this parameter result in better - compression at the expense of memory usage. The default value is 15 if - deflateInit is used instead. - - windowBits can also be -8..-15 for raw deflate. In this case, -windowBits - determines the window size. deflate() will then generate raw deflate data - with no zlib header or trailer, and will not compute an adler32 check value. - - windowBits can also be greater than 15 for optional gzip encoding. Add - 16 to windowBits to write a simple gzip header and trailer around the - compressed data instead of a zlib wrapper. The gzip header will have no - file name, no extra data, no comment, no modification time (set to zero), no - header crc, and the operating system will be set to 255 (unknown). If a - gzip stream is being written, strm->adler is a crc32 instead of an adler32. - - The memLevel parameter specifies how much memory should be allocated - for the internal compression state. memLevel=1 uses minimum memory but is - slow and reduces compression ratio; memLevel=9 uses maximum memory for - optimal speed. The default value is 8. See zconf.h for total memory usage - as a function of windowBits and memLevel. - - The strategy parameter is used to tune the compression algorithm. Use the - value Z_DEFAULT_STRATEGY for normal data, Z_FILTERED for data produced by a - filter (or predictor), Z_HUFFMAN_ONLY to force Huffman encoding only (no - string match), or Z_RLE to limit match distances to one (run-length - encoding). Filtered data consists mostly of small values with a somewhat - random distribution. In this case, the compression algorithm is tuned to - compress them better. The effect of Z_FILTERED is to force more Huffman - coding and less string matching; it is somewhat intermediate between - Z_DEFAULT_STRATEGY and Z_HUFFMAN_ONLY. Z_RLE is designed to be almost as - fast as Z_HUFFMAN_ONLY, but give better compression for PNG image data. The - strategy parameter only affects the compression ratio but not the - correctness of the compressed output even if it is not set appropriately. - Z_FIXED prevents the use of dynamic Huffman codes, allowing for a simpler - decoder for special applications. - - deflateInit2 returns Z_OK if success, Z_MEM_ERROR if there was not enough - memory, Z_STREAM_ERROR if any parameter is invalid (such as an invalid - method), or Z_VERSION_ERROR if the zlib library version (zlib_version) is - incompatible with the version assumed by the caller (ZLIB_VERSION). msg is - set to null if there is no error message. deflateInit2 does not perform any - compression: this will be done by deflate(). -*/ - -ZEXTERN int ZEXPORT deflateSetDictionary OF((z_streamp strm, - const Bytef *dictionary, - uInt dictLength)); -/* - Initializes the compression dictionary from the given byte sequence - without producing any compressed output. When using the zlib format, this - function must be called immediately after deflateInit, deflateInit2 or - deflateReset, and before any call of deflate. When doing raw deflate, this - function must be called either before any call of deflate, or immediately - after the completion of a deflate block, i.e. after all input has been - consumed and all output has been delivered when using any of the flush - options Z_BLOCK, Z_PARTIAL_FLUSH, Z_SYNC_FLUSH, or Z_FULL_FLUSH. The - compressor and decompressor must use exactly the same dictionary (see - inflateSetDictionary). - - The dictionary should consist of strings (byte sequences) that are likely - to be encountered later in the data to be compressed, with the most commonly - used strings preferably put towards the end of the dictionary. Using a - dictionary is most useful when the data to be compressed is short and can be - predicted with good accuracy; the data can then be compressed better than - with the default empty dictionary. - - Depending on the size of the compression data structures selected by - deflateInit or deflateInit2, a part of the dictionary may in effect be - discarded, for example if the dictionary is larger than the window size - provided in deflateInit or deflateInit2. Thus the strings most likely to be - useful should be put at the end of the dictionary, not at the front. In - addition, the current implementation of deflate will use at most the window - size minus 262 bytes of the provided dictionary. - - Upon return of this function, strm->adler is set to the adler32 value - of the dictionary; the decompressor may later use this value to determine - which dictionary has been used by the compressor. (The adler32 value - applies to the whole dictionary even if only a subset of the dictionary is - actually used by the compressor.) If a raw deflate was requested, then the - adler32 value is not computed and strm->adler is not set. - - deflateSetDictionary returns Z_OK if success, or Z_STREAM_ERROR if a - parameter is invalid (e.g. dictionary being Z_NULL) or the stream state is - inconsistent (for example if deflate has already been called for this stream - or if not at a block boundary for raw deflate). deflateSetDictionary does - not perform any compression: this will be done by deflate(). -*/ - -ZEXTERN int ZEXPORT deflateCopy OF((z_streamp dest, - z_streamp source)); -/* - Sets the destination stream as a complete copy of the source stream. - - This function can be useful when several compression strategies will be - tried, for example when there are several ways of pre-processing the input - data with a filter. The streams that will be discarded should then be freed - by calling deflateEnd. Note that deflateCopy duplicates the internal - compression state which can be quite large, so this strategy is slow and can - consume lots of memory. - - deflateCopy returns Z_OK if success, Z_MEM_ERROR if there was not - enough memory, Z_STREAM_ERROR if the source stream state was inconsistent - (such as zalloc being Z_NULL). msg is left unchanged in both source and - destination. -*/ - -ZEXTERN int ZEXPORT deflateReset OF((z_streamp strm)); -/* - This function is equivalent to deflateEnd followed by deflateInit, - but does not free and reallocate all the internal compression state. The - stream will keep the same compression level and any other attributes that - may have been set by deflateInit2. - - deflateReset returns Z_OK if success, or Z_STREAM_ERROR if the source - stream state was inconsistent (such as zalloc or state being Z_NULL). -*/ - -ZEXTERN int ZEXPORT deflateParams OF((z_streamp strm, - int level, - int strategy)); -/* - Dynamically update the compression level and compression strategy. The - interpretation of level and strategy is as in deflateInit2. This can be - used to switch between compression and straight copy of the input data, or - to switch to a different kind of input data requiring a different strategy. - If the compression level is changed, the input available so far is - compressed with the old level (and may be flushed); the new level will take - effect only at the next call of deflate(). - - Before the call of deflateParams, the stream state must be set as for - a call of deflate(), since the currently available input may have to be - compressed and flushed. In particular, strm->avail_out must be non-zero. - - deflateParams returns Z_OK if success, Z_STREAM_ERROR if the source - stream state was inconsistent or if a parameter was invalid, Z_BUF_ERROR if - strm->avail_out was zero. -*/ - -ZEXTERN int ZEXPORT deflateTune OF((z_streamp strm, - int good_length, - int max_lazy, - int nice_length, - int max_chain)); -/* - Fine tune deflate's internal compression parameters. This should only be - used by someone who understands the algorithm used by zlib's deflate for - searching for the best matching string, and even then only by the most - fanatic optimizer trying to squeeze out the last compressed bit for their - specific input data. Read the deflate.c source code for the meaning of the - max_lazy, good_length, nice_length, and max_chain parameters. - - deflateTune() can be called after deflateInit() or deflateInit2(), and - returns Z_OK on success, or Z_STREAM_ERROR for an invalid deflate stream. - */ - -ZEXTERN uLong ZEXPORT deflateBound OF((z_streamp strm, - uLong sourceLen)); -/* - deflateBound() returns an upper bound on the compressed size after - deflation of sourceLen bytes. It must be called after deflateInit() or - deflateInit2(), and after deflateSetHeader(), if used. This would be used - to allocate an output buffer for deflation in a single pass, and so would be - called before deflate(). If that first deflate() call is provided the - sourceLen input bytes, an output buffer allocated to the size returned by - deflateBound(), and the flush value Z_FINISH, then deflate() is guaranteed - to return Z_STREAM_END. Note that it is possible for the compressed size to - be larger than the value returned by deflateBound() if flush options other - than Z_FINISH or Z_NO_FLUSH are used. -*/ - -ZEXTERN int ZEXPORT deflatePending OF((z_streamp strm, - unsigned *pending, - int *bits)); -/* - deflatePending() returns the number of bytes and bits of output that have - been generated, but not yet provided in the available output. The bytes not - provided would be due to the available output space having being consumed. - The number of bits of output not provided are between 0 and 7, where they - await more bits to join them in order to fill out a full byte. If pending - or bits are Z_NULL, then those values are not set. - - deflatePending returns Z_OK if success, or Z_STREAM_ERROR if the source - stream state was inconsistent. - */ - -ZEXTERN int ZEXPORT deflatePrime OF((z_streamp strm, - int bits, - int value)); -/* - deflatePrime() inserts bits in the deflate output stream. The intent - is that this function is used to start off the deflate output with the bits - leftover from a previous deflate stream when appending to it. As such, this - function can only be used for raw deflate, and must be used before the first - deflate() call after a deflateInit2() or deflateReset(). bits must be less - than or equal to 16, and that many of the least significant bits of value - will be inserted in the output. - - deflatePrime returns Z_OK if success, Z_BUF_ERROR if there was not enough - room in the internal buffer to insert the bits, or Z_STREAM_ERROR if the - source stream state was inconsistent. -*/ - -ZEXTERN int ZEXPORT deflateSetHeader OF((z_streamp strm, - gz_headerp head)); -/* - deflateSetHeader() provides gzip header information for when a gzip - stream is requested by deflateInit2(). deflateSetHeader() may be called - after deflateInit2() or deflateReset() and before the first call of - deflate(). The text, time, os, extra field, name, and comment information - in the provided gz_header structure are written to the gzip header (xflag is - ignored -- the extra flags are set according to the compression level). The - caller must assure that, if not Z_NULL, name and comment are terminated with - a zero byte, and that if extra is not Z_NULL, that extra_len bytes are - available there. If hcrc is true, a gzip header crc is included. Note that - the current versions of the command-line version of gzip (up through version - 1.3.x) do not support header crc's, and will report that it is a "multi-part - gzip file" and give up. - - If deflateSetHeader is not used, the default gzip header has text false, - the time set to zero, and os set to 255, with no extra, name, or comment - fields. The gzip header is returned to the default state by deflateReset(). - - deflateSetHeader returns Z_OK if success, or Z_STREAM_ERROR if the source - stream state was inconsistent. -*/ - -/* -ZEXTERN int ZEXPORT inflateInit2 OF((z_streamp strm, - int windowBits)); - - This is another version of inflateInit with an extra parameter. The - fields next_in, avail_in, zalloc, zfree and opaque must be initialized - before by the caller. - - The windowBits parameter is the base two logarithm of the maximum window - size (the size of the history buffer). It should be in the range 8..15 for - this version of the library. The default value is 15 if inflateInit is used - instead. windowBits must be greater than or equal to the windowBits value - provided to deflateInit2() while compressing, or it must be equal to 15 if - deflateInit2() was not used. If a compressed stream with a larger window - size is given as input, inflate() will return with the error code - Z_DATA_ERROR instead of trying to allocate a larger window. - - windowBits can also be zero to request that inflate use the window size in - the zlib header of the compressed stream. - - windowBits can also be -8..-15 for raw inflate. In this case, -windowBits - determines the window size. inflate() will then process raw deflate data, - not looking for a zlib or gzip header, not generating a check value, and not - looking for any check values for comparison at the end of the stream. This - is for use with other formats that use the deflate compressed data format - such as zip. Those formats provide their own check values. If a custom - format is developed using the raw deflate format for compressed data, it is - recommended that a check value such as an adler32 or a crc32 be applied to - the uncompressed data as is done in the zlib, gzip, and zip formats. For - most applications, the zlib format should be used as is. Note that comments - above on the use in deflateInit2() applies to the magnitude of windowBits. - - windowBits can also be greater than 15 for optional gzip decoding. Add - 32 to windowBits to enable zlib and gzip decoding with automatic header - detection, or add 16 to decode only the gzip format (the zlib format will - return a Z_DATA_ERROR). If a gzip stream is being decoded, strm->adler is a - crc32 instead of an adler32. - - inflateInit2 returns Z_OK if success, Z_MEM_ERROR if there was not enough - memory, Z_VERSION_ERROR if the zlib library version is incompatible with the - version assumed by the caller, or Z_STREAM_ERROR if the parameters are - invalid, such as a null pointer to the structure. msg is set to null if - there is no error message. inflateInit2 does not perform any decompression - apart from possibly reading the zlib header if present: actual decompression - will be done by inflate(). (So next_in and avail_in may be modified, but - next_out and avail_out are unused and unchanged.) The current implementation - of inflateInit2() does not process any header information -- that is - deferred until inflate() is called. -*/ - -ZEXTERN int ZEXPORT inflateSetDictionary OF((z_streamp strm, - const Bytef *dictionary, - uInt dictLength)); -/* - Initializes the decompression dictionary from the given uncompressed byte - sequence. This function must be called immediately after a call of inflate, - if that call returned Z_NEED_DICT. The dictionary chosen by the compressor - can be determined from the adler32 value returned by that call of inflate. - The compressor and decompressor must use exactly the same dictionary (see - deflateSetDictionary). For raw inflate, this function can be called at any - time to set the dictionary. If the provided dictionary is smaller than the - window and there is already data in the window, then the provided dictionary - will amend what's there. The application must insure that the dictionary - that was used for compression is provided. - - inflateSetDictionary returns Z_OK if success, Z_STREAM_ERROR if a - parameter is invalid (e.g. dictionary being Z_NULL) or the stream state is - inconsistent, Z_DATA_ERROR if the given dictionary doesn't match the - expected one (incorrect adler32 value). inflateSetDictionary does not - perform any decompression: this will be done by subsequent calls of - inflate(). -*/ - -ZEXTERN int ZEXPORT inflateGetDictionary OF((z_streamp strm, - Bytef *dictionary, - uInt *dictLength)); -/* - Returns the sliding dictionary being maintained by inflate. dictLength is - set to the number of bytes in the dictionary, and that many bytes are copied - to dictionary. dictionary must have enough space, where 32768 bytes is - always enough. If inflateGetDictionary() is called with dictionary equal to - Z_NULL, then only the dictionary length is returned, and nothing is copied. - Similary, if dictLength is Z_NULL, then it is not set. - - inflateGetDictionary returns Z_OK on success, or Z_STREAM_ERROR if the - stream state is inconsistent. -*/ - -ZEXTERN int ZEXPORT inflateSync OF((z_streamp strm)); -/* - Skips invalid compressed data until a possible full flush point (see above - for the description of deflate with Z_FULL_FLUSH) can be found, or until all - available input is skipped. No output is provided. - - inflateSync searches for a 00 00 FF FF pattern in the compressed data. - All full flush points have this pattern, but not all occurrences of this - pattern are full flush points. - - inflateSync returns Z_OK if a possible full flush point has been found, - Z_BUF_ERROR if no more input was provided, Z_DATA_ERROR if no flush point - has been found, or Z_STREAM_ERROR if the stream structure was inconsistent. - In the success case, the application may save the current current value of - total_in which indicates where valid compressed data was found. In the - error case, the application may repeatedly call inflateSync, providing more - input each time, until success or end of the input data. -*/ - -ZEXTERN int ZEXPORT inflateCopy OF((z_streamp dest, - z_streamp source)); -/* - Sets the destination stream as a complete copy of the source stream. - - This function can be useful when randomly accessing a large stream. The - first pass through the stream can periodically record the inflate state, - allowing restarting inflate at those points when randomly accessing the - stream. - - inflateCopy returns Z_OK if success, Z_MEM_ERROR if there was not - enough memory, Z_STREAM_ERROR if the source stream state was inconsistent - (such as zalloc being Z_NULL). msg is left unchanged in both source and - destination. -*/ - -ZEXTERN int ZEXPORT inflateReset OF((z_streamp strm)); -/* - This function is equivalent to inflateEnd followed by inflateInit, - but does not free and reallocate all the internal decompression state. The - stream will keep attributes that may have been set by inflateInit2. - - inflateReset returns Z_OK if success, or Z_STREAM_ERROR if the source - stream state was inconsistent (such as zalloc or state being Z_NULL). -*/ - -ZEXTERN int ZEXPORT inflateReset2 OF((z_streamp strm, - int windowBits)); -/* - This function is the same as inflateReset, but it also permits changing - the wrap and window size requests. The windowBits parameter is interpreted - the same as it is for inflateInit2. - - inflateReset2 returns Z_OK if success, or Z_STREAM_ERROR if the source - stream state was inconsistent (such as zalloc or state being Z_NULL), or if - the windowBits parameter is invalid. -*/ - -ZEXTERN int ZEXPORT inflatePrime OF((z_streamp strm, - int bits, - int value)); -/* - This function inserts bits in the inflate input stream. The intent is - that this function is used to start inflating at a bit position in the - middle of a byte. The provided bits will be used before any bytes are used - from next_in. This function should only be used with raw inflate, and - should be used before the first inflate() call after inflateInit2() or - inflateReset(). bits must be less than or equal to 16, and that many of the - least significant bits of value will be inserted in the input. - - If bits is negative, then the input stream bit buffer is emptied. Then - inflatePrime() can be called again to put bits in the buffer. This is used - to clear out bits leftover after feeding inflate a block description prior - to feeding inflate codes. - - inflatePrime returns Z_OK if success, or Z_STREAM_ERROR if the source - stream state was inconsistent. -*/ - -ZEXTERN long ZEXPORT inflateMark OF((z_streamp strm)); -/* - This function returns two values, one in the lower 16 bits of the return - value, and the other in the remaining upper bits, obtained by shifting the - return value down 16 bits. If the upper value is -1 and the lower value is - zero, then inflate() is currently decoding information outside of a block. - If the upper value is -1 and the lower value is non-zero, then inflate is in - the middle of a stored block, with the lower value equaling the number of - bytes from the input remaining to copy. If the upper value is not -1, then - it is the number of bits back from the current bit position in the input of - the code (literal or length/distance pair) currently being processed. In - that case the lower value is the number of bytes already emitted for that - code. - - A code is being processed if inflate is waiting for more input to complete - decoding of the code, or if it has completed decoding but is waiting for - more output space to write the literal or match data. - - inflateMark() is used to mark locations in the input data for random - access, which may be at bit positions, and to note those cases where the - output of a code may span boundaries of random access blocks. The current - location in the input stream can be determined from avail_in and data_type - as noted in the description for the Z_BLOCK flush parameter for inflate. - - inflateMark returns the value noted above or -1 << 16 if the provided - source stream state was inconsistent. -*/ - -ZEXTERN int ZEXPORT inflateGetHeader OF((z_streamp strm, - gz_headerp head)); -/* - inflateGetHeader() requests that gzip header information be stored in the - provided gz_header structure. inflateGetHeader() may be called after - inflateInit2() or inflateReset(), and before the first call of inflate(). - As inflate() processes the gzip stream, head->done is zero until the header - is completed, at which time head->done is set to one. If a zlib stream is - being decoded, then head->done is set to -1 to indicate that there will be - no gzip header information forthcoming. Note that Z_BLOCK or Z_TREES can be - used to force inflate() to return immediately after header processing is - complete and before any actual data is decompressed. - - The text, time, xflags, and os fields are filled in with the gzip header - contents. hcrc is set to true if there is a header CRC. (The header CRC - was valid if done is set to one.) If extra is not Z_NULL, then extra_max - contains the maximum number of bytes to write to extra. Once done is true, - extra_len contains the actual extra field length, and extra contains the - extra field, or that field truncated if extra_max is less than extra_len. - If name is not Z_NULL, then up to name_max characters are written there, - terminated with a zero unless the length is greater than name_max. If - comment is not Z_NULL, then up to comm_max characters are written there, - terminated with a zero unless the length is greater than comm_max. When any - of extra, name, or comment are not Z_NULL and the respective field is not - present in the header, then that field is set to Z_NULL to signal its - absence. This allows the use of deflateSetHeader() with the returned - structure to duplicate the header. However if those fields are set to - allocated memory, then the application will need to save those pointers - elsewhere so that they can be eventually freed. - - If inflateGetHeader is not used, then the header information is simply - discarded. The header is always checked for validity, including the header - CRC if present. inflateReset() will reset the process to discard the header - information. The application would need to call inflateGetHeader() again to - retrieve the header from the next gzip stream. - - inflateGetHeader returns Z_OK if success, or Z_STREAM_ERROR if the source - stream state was inconsistent. -*/ - -/* -ZEXTERN int ZEXPORT inflateBackInit OF((z_streamp strm, int windowBits, - unsigned char FAR *window)); - - Initialize the internal stream state for decompression using inflateBack() - calls. The fields zalloc, zfree and opaque in strm must be initialized - before the call. If zalloc and zfree are Z_NULL, then the default library- - derived memory allocation routines are used. windowBits is the base two - logarithm of the window size, in the range 8..15. window is a caller - supplied buffer of that size. Except for special applications where it is - assured that deflate was used with small window sizes, windowBits must be 15 - and a 32K byte window must be supplied to be able to decompress general - deflate streams. - - See inflateBack() for the usage of these routines. - - inflateBackInit will return Z_OK on success, Z_STREAM_ERROR if any of - the parameters are invalid, Z_MEM_ERROR if the internal state could not be - allocated, or Z_VERSION_ERROR if the version of the library does not match - the version of the header file. -*/ - -typedef unsigned (*in_func) OF((void FAR *, - z_const unsigned char FAR * FAR *)); -typedef int (*out_func) OF((void FAR *, unsigned char FAR *, unsigned)); - -ZEXTERN int ZEXPORT inflateBack OF((z_streamp strm, - in_func in, void FAR *in_desc, - out_func out, void FAR *out_desc)); -/* - inflateBack() does a raw inflate with a single call using a call-back - interface for input and output. This is potentially more efficient than - inflate() for file i/o applications, in that it avoids copying between the - output and the sliding window by simply making the window itself the output - buffer. inflate() can be faster on modern CPUs when used with large - buffers. inflateBack() trusts the application to not change the output - buffer passed by the output function, at least until inflateBack() returns. - - inflateBackInit() must be called first to allocate the internal state - and to initialize the state with the user-provided window buffer. - inflateBack() may then be used multiple times to inflate a complete, raw - deflate stream with each call. inflateBackEnd() is then called to free the - allocated state. - - A raw deflate stream is one with no zlib or gzip header or trailer. - This routine would normally be used in a utility that reads zip or gzip - files and writes out uncompressed files. The utility would decode the - header and process the trailer on its own, hence this routine expects only - the raw deflate stream to decompress. This is different from the normal - behavior of inflate(), which expects either a zlib or gzip header and - trailer around the deflate stream. - - inflateBack() uses two subroutines supplied by the caller that are then - called by inflateBack() for input and output. inflateBack() calls those - routines until it reads a complete deflate stream and writes out all of the - uncompressed data, or until it encounters an error. The function's - parameters and return types are defined above in the in_func and out_func - typedefs. inflateBack() will call in(in_desc, &buf) which should return the - number of bytes of provided input, and a pointer to that input in buf. If - there is no input available, in() must return zero--buf is ignored in that - case--and inflateBack() will return a buffer error. inflateBack() will call - out(out_desc, buf, len) to write the uncompressed data buf[0..len-1]. out() - should return zero on success, or non-zero on failure. If out() returns - non-zero, inflateBack() will return with an error. Neither in() nor out() - are permitted to change the contents of the window provided to - inflateBackInit(), which is also the buffer that out() uses to write from. - The length written by out() will be at most the window size. Any non-zero - amount of input may be provided by in(). - - For convenience, inflateBack() can be provided input on the first call by - setting strm->next_in and strm->avail_in. If that input is exhausted, then - in() will be called. Therefore strm->next_in must be initialized before - calling inflateBack(). If strm->next_in is Z_NULL, then in() will be called - immediately for input. If strm->next_in is not Z_NULL, then strm->avail_in - must also be initialized, and then if strm->avail_in is not zero, input will - initially be taken from strm->next_in[0 .. strm->avail_in - 1]. - - The in_desc and out_desc parameters of inflateBack() is passed as the - first parameter of in() and out() respectively when they are called. These - descriptors can be optionally used to pass any information that the caller- - supplied in() and out() functions need to do their job. - - On return, inflateBack() will set strm->next_in and strm->avail_in to - pass back any unused input that was provided by the last in() call. The - return values of inflateBack() can be Z_STREAM_END on success, Z_BUF_ERROR - if in() or out() returned an error, Z_DATA_ERROR if there was a format error - in the deflate stream (in which case strm->msg is set to indicate the nature - of the error), or Z_STREAM_ERROR if the stream was not properly initialized. - In the case of Z_BUF_ERROR, an input or output error can be distinguished - using strm->next_in which will be Z_NULL only if in() returned an error. If - strm->next_in is not Z_NULL, then the Z_BUF_ERROR was due to out() returning - non-zero. (in() will always be called before out(), so strm->next_in is - assured to be defined if out() returns non-zero.) Note that inflateBack() - cannot return Z_OK. -*/ - -ZEXTERN int ZEXPORT inflateBackEnd OF((z_streamp strm)); -/* - All memory allocated by inflateBackInit() is freed. - - inflateBackEnd() returns Z_OK on success, or Z_STREAM_ERROR if the stream - state was inconsistent. -*/ - -ZEXTERN uLong ZEXPORT zlibCompileFlags OF((void)); -/* Return flags indicating compile-time options. - - Type sizes, two bits each, 00 = 16 bits, 01 = 32, 10 = 64, 11 = other: - 1.0: size of uInt - 3.2: size of uLong - 5.4: size of voidpf (pointer) - 7.6: size of z_off_t - - Compiler, assembler, and debug options: - 8: DEBUG - 9: ASMV or ASMINF -- use ASM code - 10: ZLIB_WINAPI -- exported functions use the WINAPI calling convention - 11: 0 (reserved) - - One-time table building (smaller code, but not thread-safe if true): - 12: BUILDFIXED -- build static block decoding tables when needed - 13: DYNAMIC_CRC_TABLE -- build CRC calculation tables when needed - 14,15: 0 (reserved) - - Library content (indicates missing functionality): - 16: NO_GZCOMPRESS -- gz* functions cannot compress (to avoid linking - deflate code when not needed) - 17: NO_GZIP -- deflate can't write gzip streams, and inflate can't detect - and decode gzip streams (to avoid linking crc code) - 18-19: 0 (reserved) - - Operation variations (changes in library functionality): - 20: PKZIP_BUG_WORKAROUND -- slightly more permissive inflate - 21: FASTEST -- deflate algorithm with only one, lowest compression level - 22,23: 0 (reserved) - - The sprintf variant used by gzprintf (zero is best): - 24: 0 = vs*, 1 = s* -- 1 means limited to 20 arguments after the format - 25: 0 = *nprintf, 1 = *printf -- 1 means gzprintf() not secure! - 26: 0 = returns value, 1 = void -- 1 means inferred string length returned - - Remainder: - 27-31: 0 (reserved) - */ - -#ifndef Z_SOLO - - /* utility functions */ - -/* - The following utility functions are implemented on top of the basic - stream-oriented functions. To simplify the interface, some default options - are assumed (compression level and memory usage, standard memory allocation - functions). The source code of these utility functions can be modified if - you need special options. -*/ - -ZEXTERN int ZEXPORT compress OF((Bytef *dest, uLongf *destLen, - const Bytef *source, uLong sourceLen)); -/* - Compresses the source buffer into the destination buffer. sourceLen is - the byte length of the source buffer. Upon entry, destLen is the total size - of the destination buffer, which must be at least the value returned by - compressBound(sourceLen). Upon exit, destLen is the actual size of the - compressed buffer. - - compress returns Z_OK if success, Z_MEM_ERROR if there was not - enough memory, Z_BUF_ERROR if there was not enough room in the output - buffer. -*/ - -ZEXTERN int ZEXPORT compress2 OF((Bytef *dest, uLongf *destLen, - const Bytef *source, uLong sourceLen, - int level)); -/* - Compresses the source buffer into the destination buffer. The level - parameter has the same meaning as in deflateInit. sourceLen is the byte - length of the source buffer. Upon entry, destLen is the total size of the - destination buffer, which must be at least the value returned by - compressBound(sourceLen). Upon exit, destLen is the actual size of the - compressed buffer. - - compress2 returns Z_OK if success, Z_MEM_ERROR if there was not enough - memory, Z_BUF_ERROR if there was not enough room in the output buffer, - Z_STREAM_ERROR if the level parameter is invalid. -*/ - -ZEXTERN uLong ZEXPORT compressBound OF((uLong sourceLen)); -/* - compressBound() returns an upper bound on the compressed size after - compress() or compress2() on sourceLen bytes. It would be used before a - compress() or compress2() call to allocate the destination buffer. -*/ - -ZEXTERN int ZEXPORT uncompress OF((Bytef *dest, uLongf *destLen, - const Bytef *source, uLong sourceLen)); -/* - Decompresses the source buffer into the destination buffer. sourceLen is - the byte length of the source buffer. Upon entry, destLen is the total size - of the destination buffer, which must be large enough to hold the entire - uncompressed data. (The size of the uncompressed data must have been saved - previously by the compressor and transmitted to the decompressor by some - mechanism outside the scope of this compression library.) Upon exit, destLen - is the actual size of the uncompressed buffer. - - uncompress returns Z_OK if success, Z_MEM_ERROR if there was not - enough memory, Z_BUF_ERROR if there was not enough room in the output - buffer, or Z_DATA_ERROR if the input data was corrupted or incomplete. In - the case where there is not enough room, uncompress() will fill the output - buffer with the uncompressed data up to that point. -*/ - - /* gzip file access functions */ - -/* - This library supports reading and writing files in gzip (.gz) format with - an interface similar to that of stdio, using the functions that start with - "gz". The gzip format is different from the zlib format. gzip is a gzip - wrapper, documented in RFC 1952, wrapped around a deflate stream. -*/ - -typedef struct gzFile_s *gzFile; /* semi-opaque gzip file descriptor */ - -/* -ZEXTERN gzFile ZEXPORT gzopen OF((const char *path, const char *mode)); - - Opens a gzip (.gz) file for reading or writing. The mode parameter is as - in fopen ("rb" or "wb") but can also include a compression level ("wb9") or - a strategy: 'f' for filtered data as in "wb6f", 'h' for Huffman-only - compression as in "wb1h", 'R' for run-length encoding as in "wb1R", or 'F' - for fixed code compression as in "wb9F". (See the description of - deflateInit2 for more information about the strategy parameter.) 'T' will - request transparent writing or appending with no compression and not using - the gzip format. - - "a" can be used instead of "w" to request that the gzip stream that will - be written be appended to the file. "+" will result in an error, since - reading and writing to the same gzip file is not supported. The addition of - "x" when writing will create the file exclusively, which fails if the file - already exists. On systems that support it, the addition of "e" when - reading or writing will set the flag to close the file on an execve() call. - - These functions, as well as gzip, will read and decode a sequence of gzip - streams in a file. The append function of gzopen() can be used to create - such a file. (Also see gzflush() for another way to do this.) When - appending, gzopen does not test whether the file begins with a gzip stream, - nor does it look for the end of the gzip streams to begin appending. gzopen - will simply append a gzip stream to the existing file. - - gzopen can be used to read a file which is not in gzip format; in this - case gzread will directly read from the file without decompression. When - reading, this will be detected automatically by looking for the magic two- - byte gzip header. - - gzopen returns NULL if the file could not be opened, if there was - insufficient memory to allocate the gzFile state, or if an invalid mode was - specified (an 'r', 'w', or 'a' was not provided, or '+' was provided). - errno can be checked to determine if the reason gzopen failed was that the - file could not be opened. -*/ - -ZEXTERN gzFile ZEXPORT gzdopen OF((int fd, const char *mode)); -/* - gzdopen associates a gzFile with the file descriptor fd. File descriptors - are obtained from calls like open, dup, creat, pipe or fileno (if the file - has been previously opened with fopen). The mode parameter is as in gzopen. - - The next call of gzclose on the returned gzFile will also close the file - descriptor fd, just like fclose(fdopen(fd, mode)) closes the file descriptor - fd. If you want to keep fd open, use fd = dup(fd_keep); gz = gzdopen(fd, - mode);. The duplicated descriptor should be saved to avoid a leak, since - gzdopen does not close fd if it fails. If you are using fileno() to get the - file descriptor from a FILE *, then you will have to use dup() to avoid - double-close()ing the file descriptor. Both gzclose() and fclose() will - close the associated file descriptor, so they need to have different file - descriptors. - - gzdopen returns NULL if there was insufficient memory to allocate the - gzFile state, if an invalid mode was specified (an 'r', 'w', or 'a' was not - provided, or '+' was provided), or if fd is -1. The file descriptor is not - used until the next gz* read, write, seek, or close operation, so gzdopen - will not detect if fd is invalid (unless fd is -1). -*/ - -ZEXTERN int ZEXPORT gzbuffer OF((gzFile file, unsigned size)); -/* - Set the internal buffer size used by this library's functions. The - default buffer size is 8192 bytes. This function must be called after - gzopen() or gzdopen(), and before any other calls that read or write the - file. The buffer memory allocation is always deferred to the first read or - write. Two buffers are allocated, either both of the specified size when - writing, or one of the specified size and the other twice that size when - reading. A larger buffer size of, for example, 64K or 128K bytes will - noticeably increase the speed of decompression (reading). - - The new buffer size also affects the maximum length for gzprintf(). - - gzbuffer() returns 0 on success, or -1 on failure, such as being called - too late. -*/ - -ZEXTERN int ZEXPORT gzsetparams OF((gzFile file, int level, int strategy)); -/* - Dynamically update the compression level or strategy. See the description - of deflateInit2 for the meaning of these parameters. - - gzsetparams returns Z_OK if success, or Z_STREAM_ERROR if the file was not - opened for writing. -*/ - -ZEXTERN int ZEXPORT gzread OF((gzFile file, voidp buf, unsigned len)); -/* - Reads the given number of uncompressed bytes from the compressed file. If - the input file is not in gzip format, gzread copies the given number of - bytes into the buffer directly from the file. - - After reaching the end of a gzip stream in the input, gzread will continue - to read, looking for another gzip stream. Any number of gzip streams may be - concatenated in the input file, and will all be decompressed by gzread(). - If something other than a gzip stream is encountered after a gzip stream, - that remaining trailing garbage is ignored (and no error is returned). - - gzread can be used to read a gzip file that is being concurrently written. - Upon reaching the end of the input, gzread will return with the available - data. If the error code returned by gzerror is Z_OK or Z_BUF_ERROR, then - gzclearerr can be used to clear the end of file indicator in order to permit - gzread to be tried again. Z_OK indicates that a gzip stream was completed - on the last gzread. Z_BUF_ERROR indicates that the input file ended in the - middle of a gzip stream. Note that gzread does not return -1 in the event - of an incomplete gzip stream. This error is deferred until gzclose(), which - will return Z_BUF_ERROR if the last gzread ended in the middle of a gzip - stream. Alternatively, gzerror can be used before gzclose to detect this - case. - - gzread returns the number of uncompressed bytes actually read, less than - len for end of file, or -1 for error. -*/ - -ZEXTERN int ZEXPORT gzwrite OF((gzFile file, - voidpc buf, unsigned len)); -/* - Writes the given number of uncompressed bytes into the compressed file. - gzwrite returns the number of uncompressed bytes written or 0 in case of - error. -*/ - -ZEXTERN int ZEXPORTVA gzprintf Z_ARG((gzFile file, const char *format, ...)); -/* - Converts, formats, and writes the arguments to the compressed file under - control of the format string, as in fprintf. gzprintf returns the number of - uncompressed bytes actually written, or 0 in case of error. The number of - uncompressed bytes written is limited to 8191, or one less than the buffer - size given to gzbuffer(). The caller should assure that this limit is not - exceeded. If it is exceeded, then gzprintf() will return an error (0) with - nothing written. In this case, there may also be a buffer overflow with - unpredictable consequences, which is possible only if zlib was compiled with - the insecure functions sprintf() or vsprintf() because the secure snprintf() - or vsnprintf() functions were not available. This can be determined using - zlibCompileFlags(). -*/ - -ZEXTERN int ZEXPORT gzputs OF((gzFile file, const char *s)); -/* - Writes the given null-terminated string to the compressed file, excluding - the terminating null character. - - gzputs returns the number of characters written, or -1 in case of error. -*/ - -ZEXTERN char * ZEXPORT gzgets OF((gzFile file, char *buf, int len)); -/* - Reads bytes from the compressed file until len-1 characters are read, or a - newline character is read and transferred to buf, or an end-of-file - condition is encountered. If any characters are read or if len == 1, the - string is terminated with a null character. If no characters are read due - to an end-of-file or len < 1, then the buffer is left untouched. - - gzgets returns buf which is a null-terminated string, or it returns NULL - for end-of-file or in case of error. If there was an error, the contents at - buf are indeterminate. -*/ - -ZEXTERN int ZEXPORT gzputc OF((gzFile file, int c)); -/* - Writes c, converted to an unsigned char, into the compressed file. gzputc - returns the value that was written, or -1 in case of error. -*/ - -ZEXTERN int ZEXPORT gzgetc OF((gzFile file)); -/* - Reads one byte from the compressed file. gzgetc returns this byte or -1 - in case of end of file or error. This is implemented as a macro for speed. - As such, it does not do all of the checking the other functions do. I.e. - it does not check to see if file is NULL, nor whether the structure file - points to has been clobbered or not. -*/ - -ZEXTERN int ZEXPORT gzungetc OF((int c, gzFile file)); -/* - Push one character back onto the stream to be read as the first character - on the next read. At least one character of push-back is allowed. - gzungetc() returns the character pushed, or -1 on failure. gzungetc() will - fail if c is -1, and may fail if a character has been pushed but not read - yet. If gzungetc is used immediately after gzopen or gzdopen, at least the - output buffer size of pushed characters is allowed. (See gzbuffer above.) - The pushed character will be discarded if the stream is repositioned with - gzseek() or gzrewind(). -*/ - -ZEXTERN int ZEXPORT gzflush OF((gzFile file, int flush)); -/* - Flushes all pending output into the compressed file. The parameter flush - is as in the deflate() function. The return value is the zlib error number - (see function gzerror below). gzflush is only permitted when writing. - - If the flush parameter is Z_FINISH, the remaining data is written and the - gzip stream is completed in the output. If gzwrite() is called again, a new - gzip stream will be started in the output. gzread() is able to read such - concatented gzip streams. - - gzflush should be called only when strictly necessary because it will - degrade compression if called too often. -*/ - -/* -ZEXTERN z_off_t ZEXPORT gzseek OF((gzFile file, - z_off_t offset, int whence)); - - Sets the starting position for the next gzread or gzwrite on the given - compressed file. The offset represents a number of bytes in the - uncompressed data stream. The whence parameter is defined as in lseek(2); - the value SEEK_END is not supported. - - If the file is opened for reading, this function is emulated but can be - extremely slow. If the file is opened for writing, only forward seeks are - supported; gzseek then compresses a sequence of zeroes up to the new - starting position. - - gzseek returns the resulting offset location as measured in bytes from - the beginning of the uncompressed stream, or -1 in case of error, in - particular if the file is opened for writing and the new starting position - would be before the current position. -*/ - -ZEXTERN int ZEXPORT gzrewind OF((gzFile file)); -/* - Rewinds the given file. This function is supported only for reading. - - gzrewind(file) is equivalent to (int)gzseek(file, 0L, SEEK_SET) -*/ - -/* -ZEXTERN z_off_t ZEXPORT gztell OF((gzFile file)); - - Returns the starting position for the next gzread or gzwrite on the given - compressed file. This position represents a number of bytes in the - uncompressed data stream, and is zero when starting, even if appending or - reading a gzip stream from the middle of a file using gzdopen(). - - gztell(file) is equivalent to gzseek(file, 0L, SEEK_CUR) -*/ - -/* -ZEXTERN z_off_t ZEXPORT gzoffset OF((gzFile file)); - - Returns the current offset in the file being read or written. This offset - includes the count of bytes that precede the gzip stream, for example when - appending or when using gzdopen() for reading. When reading, the offset - does not include as yet unused buffered input. This information can be used - for a progress indicator. On error, gzoffset() returns -1. -*/ - -ZEXTERN int ZEXPORT gzeof OF((gzFile file)); -/* - Returns true (1) if the end-of-file indicator has been set while reading, - false (0) otherwise. Note that the end-of-file indicator is set only if the - read tried to go past the end of the input, but came up short. Therefore, - just like feof(), gzeof() may return false even if there is no more data to - read, in the event that the last read request was for the exact number of - bytes remaining in the input file. This will happen if the input file size - is an exact multiple of the buffer size. - - If gzeof() returns true, then the read functions will return no more data, - unless the end-of-file indicator is reset by gzclearerr() and the input file - has grown since the previous end of file was detected. -*/ - -ZEXTERN int ZEXPORT gzdirect OF((gzFile file)); -/* - Returns true (1) if file is being copied directly while reading, or false - (0) if file is a gzip stream being decompressed. - - If the input file is empty, gzdirect() will return true, since the input - does not contain a gzip stream. - - If gzdirect() is used immediately after gzopen() or gzdopen() it will - cause buffers to be allocated to allow reading the file to determine if it - is a gzip file. Therefore if gzbuffer() is used, it should be called before - gzdirect(). - - When writing, gzdirect() returns true (1) if transparent writing was - requested ("wT" for the gzopen() mode), or false (0) otherwise. (Note: - gzdirect() is not needed when writing. Transparent writing must be - explicitly requested, so the application already knows the answer. When - linking statically, using gzdirect() will include all of the zlib code for - gzip file reading and decompression, which may not be desired.) -*/ - -ZEXTERN int ZEXPORT gzclose OF((gzFile file)); -/* - Flushes all pending output if necessary, closes the compressed file and - deallocates the (de)compression state. Note that once file is closed, you - cannot call gzerror with file, since its structures have been deallocated. - gzclose must not be called more than once on the same file, just as free - must not be called more than once on the same allocation. - - gzclose will return Z_STREAM_ERROR if file is not valid, Z_ERRNO on a - file operation error, Z_MEM_ERROR if out of memory, Z_BUF_ERROR if the - last read ended in the middle of a gzip stream, or Z_OK on success. -*/ - -ZEXTERN int ZEXPORT gzclose_r OF((gzFile file)); -ZEXTERN int ZEXPORT gzclose_w OF((gzFile file)); -/* - Same as gzclose(), but gzclose_r() is only for use when reading, and - gzclose_w() is only for use when writing or appending. The advantage to - using these instead of gzclose() is that they avoid linking in zlib - compression or decompression code that is not used when only reading or only - writing respectively. If gzclose() is used, then both compression and - decompression code will be included the application when linking to a static - zlib library. -*/ - -ZEXTERN const char * ZEXPORT gzerror OF((gzFile file, int *errnum)); -/* - Returns the error message for the last error which occurred on the given - compressed file. errnum is set to zlib error number. If an error occurred - in the file system and not in the compression library, errnum is set to - Z_ERRNO and the application may consult errno to get the exact error code. - - The application must not modify the returned string. Future calls to - this function may invalidate the previously returned string. If file is - closed, then the string previously returned by gzerror will no longer be - available. - - gzerror() should be used to distinguish errors from end-of-file for those - functions above that do not distinguish those cases in their return values. -*/ - -ZEXTERN void ZEXPORT gzclearerr OF((gzFile file)); -/* - Clears the error and end-of-file flags for file. This is analogous to the - clearerr() function in stdio. This is useful for continuing to read a gzip - file that is being written concurrently. -*/ - -#endif /* !Z_SOLO */ - - /* checksum functions */ - -/* - These functions are not related to compression but are exported - anyway because they might be useful in applications using the compression - library. -*/ - -ZEXTERN uLong ZEXPORT adler32 OF((uLong adler, const Bytef *buf, uInt len)); -/* - Update a running Adler-32 checksum with the bytes buf[0..len-1] and - return the updated checksum. If buf is Z_NULL, this function returns the - required initial value for the checksum. - - An Adler-32 checksum is almost as reliable as a CRC32 but can be computed - much faster. - - Usage example: - - uLong adler = adler32(0L, Z_NULL, 0); - - while (read_buffer(buffer, length) != EOF) { - adler = adler32(adler, buffer, length); - } - if (adler != original_adler) error(); -*/ - -/* -ZEXTERN uLong ZEXPORT adler32_combine OF((uLong adler1, uLong adler2, - z_off_t len2)); - - Combine two Adler-32 checksums into one. For two sequences of bytes, seq1 - and seq2 with lengths len1 and len2, Adler-32 checksums were calculated for - each, adler1 and adler2. adler32_combine() returns the Adler-32 checksum of - seq1 and seq2 concatenated, requiring only adler1, adler2, and len2. Note - that the z_off_t type (like off_t) is a signed integer. If len2 is - negative, the result has no meaning or utility. -*/ - -ZEXTERN uLong ZEXPORT crc32 OF((uLong crc, const Bytef *buf, uInt len)); -/* - Update a running CRC-32 with the bytes buf[0..len-1] and return the - updated CRC-32. If buf is Z_NULL, this function returns the required - initial value for the crc. Pre- and post-conditioning (one's complement) is - performed within this function so it shouldn't be done by the application. - - Usage example: - - uLong crc = crc32(0L, Z_NULL, 0); - - while (read_buffer(buffer, length) != EOF) { - crc = crc32(crc, buffer, length); - } - if (crc != original_crc) error(); -*/ - -/* -ZEXTERN uLong ZEXPORT crc32_combine OF((uLong crc1, uLong crc2, z_off_t len2)); - - Combine two CRC-32 check values into one. For two sequences of bytes, - seq1 and seq2 with lengths len1 and len2, CRC-32 check values were - calculated for each, crc1 and crc2. crc32_combine() returns the CRC-32 - check value of seq1 and seq2 concatenated, requiring only crc1, crc2, and - len2. -*/ - - - /* various hacks, don't look :) */ - -/* deflateInit and inflateInit are macros to allow checking the zlib version - * and the compiler's view of z_stream: - */ -ZEXTERN int ZEXPORT deflateInit_ OF((z_streamp strm, int level, - const char *version, int stream_size)); -ZEXTERN int ZEXPORT inflateInit_ OF((z_streamp strm, - const char *version, int stream_size)); -ZEXTERN int ZEXPORT deflateInit2_ OF((z_streamp strm, int level, int method, - int windowBits, int memLevel, - int strategy, const char *version, - int stream_size)); -ZEXTERN int ZEXPORT inflateInit2_ OF((z_streamp strm, int windowBits, - const char *version, int stream_size)); -ZEXTERN int ZEXPORT inflateBackInit_ OF((z_streamp strm, int windowBits, - unsigned char FAR *window, - const char *version, - int stream_size)); -#define deflateInit(strm, level) \ - deflateInit_((strm), (level), ZLIB_VERSION, (int)sizeof(z_stream)) -#define inflateInit(strm) \ - inflateInit_((strm), ZLIB_VERSION, (int)sizeof(z_stream)) -#define deflateInit2(strm, level, method, windowBits, memLevel, strategy) \ - deflateInit2_((strm),(level),(method),(windowBits),(memLevel),\ - (strategy), ZLIB_VERSION, (int)sizeof(z_stream)) -#define inflateInit2(strm, windowBits) \ - inflateInit2_((strm), (windowBits), ZLIB_VERSION, \ - (int)sizeof(z_stream)) -#define inflateBackInit(strm, windowBits, window) \ - inflateBackInit_((strm), (windowBits), (window), \ - ZLIB_VERSION, (int)sizeof(z_stream)) - -#ifndef Z_SOLO - -/* gzgetc() macro and its supporting function and exposed data structure. Note - * that the real internal state is much larger than the exposed structure. - * This abbreviated structure exposes just enough for the gzgetc() macro. The - * user should not mess with these exposed elements, since their names or - * behavior could change in the future, perhaps even capriciously. They can - * only be used by the gzgetc() macro. You have been warned. - */ -struct gzFile_s { - unsigned have; - unsigned char *next; - z_off64_t pos; -}; -ZEXTERN int ZEXPORT gzgetc_ OF((gzFile file)); /* backward compatibility */ -#ifdef Z_PREFIX_SET -# undef z_gzgetc -# define z_gzgetc(g) \ - ((g)->have ? ((g)->have--, (g)->pos++, *((g)->next)++) : gzgetc(g)) -#else -# define gzgetc(g) \ - ((g)->have ? ((g)->have--, (g)->pos++, *((g)->next)++) : gzgetc(g)) -#endif - -/* provide 64-bit offset functions if _LARGEFILE64_SOURCE defined, and/or - * change the regular functions to 64 bits if _FILE_OFFSET_BITS is 64 (if - * both are true, the application gets the *64 functions, and the regular - * functions are changed to 64 bits) -- in case these are set on systems - * without large file support, _LFS64_LARGEFILE must also be true - */ -#ifdef Z_LARGE64 - ZEXTERN gzFile ZEXPORT gzopen64 OF((const char *, const char *)); - ZEXTERN z_off64_t ZEXPORT gzseek64 OF((gzFile, z_off64_t, int)); - ZEXTERN z_off64_t ZEXPORT gztell64 OF((gzFile)); - ZEXTERN z_off64_t ZEXPORT gzoffset64 OF((gzFile)); - ZEXTERN uLong ZEXPORT adler32_combine64 OF((uLong, uLong, z_off64_t)); - ZEXTERN uLong ZEXPORT crc32_combine64 OF((uLong, uLong, z_off64_t)); -#endif - -#if !defined(ZLIB_INTERNAL) && defined(Z_WANT64) -# ifdef Z_PREFIX_SET -# define z_gzopen z_gzopen64 -# define z_gzseek z_gzseek64 -# define z_gztell z_gztell64 -# define z_gzoffset z_gzoffset64 -# define z_adler32_combine z_adler32_combine64 -# define z_crc32_combine z_crc32_combine64 -# else -# define gzopen gzopen64 -# define gzseek gzseek64 -# define gztell gztell64 -# define gzoffset gzoffset64 -# define adler32_combine adler32_combine64 -# define crc32_combine crc32_combine64 -# endif -# ifndef Z_LARGE64 - ZEXTERN gzFile ZEXPORT gzopen64 OF((const char *, const char *)); - ZEXTERN z_off_t ZEXPORT gzseek64 OF((gzFile, z_off_t, int)); - ZEXTERN z_off_t ZEXPORT gztell64 OF((gzFile)); - ZEXTERN z_off_t ZEXPORT gzoffset64 OF((gzFile)); - ZEXTERN uLong ZEXPORT adler32_combine64 OF((uLong, uLong, z_off_t)); - ZEXTERN uLong ZEXPORT crc32_combine64 OF((uLong, uLong, z_off_t)); -# endif -#else - ZEXTERN gzFile ZEXPORT gzopen OF((const char *, const char *)); - ZEXTERN z_off_t ZEXPORT gzseek OF((gzFile, z_off_t, int)); - ZEXTERN z_off_t ZEXPORT gztell OF((gzFile)); - ZEXTERN z_off_t ZEXPORT gzoffset OF((gzFile)); - ZEXTERN uLong ZEXPORT adler32_combine OF((uLong, uLong, z_off_t)); - ZEXTERN uLong ZEXPORT crc32_combine OF((uLong, uLong, z_off_t)); -#endif - -#else /* Z_SOLO */ - - ZEXTERN uLong ZEXPORT adler32_combine OF((uLong, uLong, z_off_t)); - ZEXTERN uLong ZEXPORT crc32_combine OF((uLong, uLong, z_off_t)); - -#endif /* !Z_SOLO */ - -/* hack for buggy compilers */ -#if !defined(ZUTIL_H) && !defined(NO_DUMMY_DECL) - struct internal_state {int dummy;}; -#endif - -/* undocumented functions */ -ZEXTERN const char * ZEXPORT zError OF((int)); -ZEXTERN int ZEXPORT inflateSyncPoint OF((z_streamp)); -ZEXTERN const z_crc_t FAR * ZEXPORT get_crc_table OF((void)); -ZEXTERN int ZEXPORT inflateUndermine OF((z_streamp, int)); -ZEXTERN int ZEXPORT inflateResetKeep OF((z_streamp)); -ZEXTERN int ZEXPORT deflateResetKeep OF((z_streamp)); -#if defined(_WIN32) && !defined(Z_SOLO) -ZEXTERN gzFile ZEXPORT gzopen_w OF((const wchar_t *path, - const char *mode)); -#endif -#if defined(STDC) || defined(Z_HAVE_STDARG_H) -# ifndef Z_SOLO -ZEXTERN int ZEXPORTVA gzvprintf Z_ARG((gzFile file, - const char *format, - va_list va)); -# endif -#endif - -#ifdef __cplusplus -} -#endif - -#endif /* ZLIB_H */ diff --git a/src/utilfuns/zlib/zutil.c b/src/utilfuns/zlib/zutil.c deleted file mode 100644 index 710cc4d..0000000 --- a/src/utilfuns/zlib/zutil.c +++ /dev/null @@ -1,324 +0,0 @@ -/* zutil.c -- target dependent utility functions for the compression library - * Copyright (C) 1995-2005, 2010, 2011, 2012 Jean-loup Gailly. - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* @(#) $Id: zutil.c 2809 2013-06-10 06:24:27Z chrislit $ */ - -#include "zutil.h" -#ifndef Z_SOLO -# include "gzguts.h" -#endif - -#ifndef NO_DUMMY_DECL -struct internal_state {int dummy;}; /* for buggy compilers */ -#endif - -z_const char * const z_errmsg[10] = { -"need dictionary", /* Z_NEED_DICT 2 */ -"stream end", /* Z_STREAM_END 1 */ -"", /* Z_OK 0 */ -"file error", /* Z_ERRNO (-1) */ -"stream error", /* Z_STREAM_ERROR (-2) */ -"data error", /* Z_DATA_ERROR (-3) */ -"insufficient memory", /* Z_MEM_ERROR (-4) */ -"buffer error", /* Z_BUF_ERROR (-5) */ -"incompatible version",/* Z_VERSION_ERROR (-6) */ -""}; - - -const char * ZEXPORT zlibVersion() -{ - return ZLIB_VERSION; -} - -uLong ZEXPORT zlibCompileFlags() -{ - uLong flags; - - flags = 0; - switch ((int)(sizeof(uInt))) { - case 2: break; - case 4: flags += 1; break; - case 8: flags += 2; break; - default: flags += 3; - } - switch ((int)(sizeof(uLong))) { - case 2: break; - case 4: flags += 1 << 2; break; - case 8: flags += 2 << 2; break; - default: flags += 3 << 2; - } - switch ((int)(sizeof(voidpf))) { - case 2: break; - case 4: flags += 1 << 4; break; - case 8: flags += 2 << 4; break; - default: flags += 3 << 4; - } - switch ((int)(sizeof(z_off_t))) { - case 2: break; - case 4: flags += 1 << 6; break; - case 8: flags += 2 << 6; break; - default: flags += 3 << 6; - } -#ifdef DEBUG - flags += 1 << 8; -#endif -#if defined(ASMV) || defined(ASMINF) - flags += 1 << 9; -#endif -#ifdef ZLIB_WINAPI - flags += 1 << 10; -#endif -#ifdef BUILDFIXED - flags += 1 << 12; -#endif -#ifdef DYNAMIC_CRC_TABLE - flags += 1 << 13; -#endif -#ifdef NO_GZCOMPRESS - flags += 1L << 16; -#endif -#ifdef NO_GZIP - flags += 1L << 17; -#endif -#ifdef PKZIP_BUG_WORKAROUND - flags += 1L << 20; -#endif -#ifdef FASTEST - flags += 1L << 21; -#endif -#if defined(STDC) || defined(Z_HAVE_STDARG_H) -# ifdef NO_vsnprintf - flags += 1L << 25; -# ifdef HAS_vsprintf_void - flags += 1L << 26; -# endif -# else -# ifdef HAS_vsnprintf_void - flags += 1L << 26; -# endif -# endif -#else - flags += 1L << 24; -# ifdef NO_snprintf - flags += 1L << 25; -# ifdef HAS_sprintf_void - flags += 1L << 26; -# endif -# else -# ifdef HAS_snprintf_void - flags += 1L << 26; -# endif -# endif -#endif - return flags; -} - -#ifdef DEBUG - -# ifndef verbose -# define verbose 0 -# endif -int ZLIB_INTERNAL z_verbose = verbose; - -void ZLIB_INTERNAL z_error (m) - char *m; -{ - fprintf(stderr, "%s\n", m); - exit(1); -} -#endif - -/* exported to allow conversion of error code to string for compress() and - * uncompress() - */ -const char * ZEXPORT zError(err) - int err; -{ - return ERR_MSG(err); -} - -#if defined(_WIN32_WCE) - /* The Microsoft C Run-Time Library for Windows CE doesn't have - * errno. We define it as a global variable to simplify porting. - * Its value is always 0 and should not be used. - */ - int errno = 0; -#endif - -#ifndef HAVE_MEMCPY - -void ZLIB_INTERNAL zmemcpy(dest, source, len) - Bytef* dest; - const Bytef* source; - uInt len; -{ - if (len == 0) return; - do { - *dest++ = *source++; /* ??? to be unrolled */ - } while (--len != 0); -} - -int ZLIB_INTERNAL zmemcmp(s1, s2, len) - const Bytef* s1; - const Bytef* s2; - uInt len; -{ - uInt j; - - for (j = 0; j < len; j++) { - if (s1[j] != s2[j]) return 2*(s1[j] > s2[j])-1; - } - return 0; -} - -void ZLIB_INTERNAL zmemzero(dest, len) - Bytef* dest; - uInt len; -{ - if (len == 0) return; - do { - *dest++ = 0; /* ??? to be unrolled */ - } while (--len != 0); -} -#endif - -#ifndef Z_SOLO - -#ifdef SYS16BIT - -#ifdef __TURBOC__ -/* Turbo C in 16-bit mode */ - -# define MY_ZCALLOC - -/* Turbo C malloc() does not allow dynamic allocation of 64K bytes - * and farmalloc(64K) returns a pointer with an offset of 8, so we - * must fix the pointer. Warning: the pointer must be put back to its - * original form in order to free it, use zcfree(). - */ - -#define MAX_PTR 10 -/* 10*64K = 640K */ - -local int next_ptr = 0; - -typedef struct ptr_table_s { - voidpf org_ptr; - voidpf new_ptr; -} ptr_table; - -local ptr_table table[MAX_PTR]; -/* This table is used to remember the original form of pointers - * to large buffers (64K). Such pointers are normalized with a zero offset. - * Since MSDOS is not a preemptive multitasking OS, this table is not - * protected from concurrent access. This hack doesn't work anyway on - * a protected system like OS/2. Use Microsoft C instead. - */ - -voidpf ZLIB_INTERNAL zcalloc (voidpf opaque, unsigned items, unsigned size) -{ - voidpf buf = opaque; /* just to make some compilers happy */ - ulg bsize = (ulg)items*size; - - /* If we allocate less than 65520 bytes, we assume that farmalloc - * will return a usable pointer which doesn't have to be normalized. - */ - if (bsize < 65520L) { - buf = farmalloc(bsize); - if (*(ush*)&buf != 0) return buf; - } else { - buf = farmalloc(bsize + 16L); - } - if (buf == NULL || next_ptr >= MAX_PTR) return NULL; - table[next_ptr].org_ptr = buf; - - /* Normalize the pointer to seg:0 */ - *((ush*)&buf+1) += ((ush)((uch*)buf-0) + 15) >> 4; - *(ush*)&buf = 0; - table[next_ptr++].new_ptr = buf; - return buf; -} - -void ZLIB_INTERNAL zcfree (voidpf opaque, voidpf ptr) -{ - int n; - if (*(ush*)&ptr != 0) { /* object < 64K */ - farfree(ptr); - return; - } - /* Find the original pointer */ - for (n = 0; n < next_ptr; n++) { - if (ptr != table[n].new_ptr) continue; - - farfree(table[n].org_ptr); - while (++n < next_ptr) { - table[n-1] = table[n]; - } - next_ptr--; - return; - } - ptr = opaque; /* just to make some compilers happy */ - Assert(0, "zcfree: ptr not found"); -} - -#endif /* __TURBOC__ */ - - -#ifdef M_I86 -/* Microsoft C in 16-bit mode */ - -# define MY_ZCALLOC - -#if (!defined(_MSC_VER) || (_MSC_VER <= 600)) -# define _halloc halloc -# define _hfree hfree -#endif - -voidpf ZLIB_INTERNAL zcalloc (voidpf opaque, uInt items, uInt size) -{ - if (opaque) opaque = 0; /* to make compiler happy */ - return _halloc((long)items, size); -} - -void ZLIB_INTERNAL zcfree (voidpf opaque, voidpf ptr) -{ - if (opaque) opaque = 0; /* to make compiler happy */ - _hfree(ptr); -} - -#endif /* M_I86 */ - -#endif /* SYS16BIT */ - - -#ifndef MY_ZCALLOC /* Any system without a special alloc function */ - -#ifndef STDC -extern voidp malloc OF((uInt size)); -extern voidp calloc OF((uInt items, uInt size)); -extern void free OF((voidpf ptr)); -#endif - -voidpf ZLIB_INTERNAL zcalloc (opaque, items, size) - voidpf opaque; - unsigned items; - unsigned size; -{ - if (opaque) items += size - size; /* make compiler happy */ - return sizeof(uInt) > 2 ? (voidpf)malloc(items * size) : - (voidpf)calloc(items, size); -} - -void ZLIB_INTERNAL zcfree (opaque, ptr) - voidpf opaque; - voidpf ptr; -{ - free(ptr); - if (opaque) return; /* make compiler happy */ -} - -#endif /* MY_ZCALLOC */ - -#endif /* !Z_SOLO */ diff --git a/src/utilfuns/zlib/zutil.h b/src/utilfuns/zlib/zutil.h deleted file mode 100644 index a1e7f31..0000000 --- a/src/utilfuns/zlib/zutil.h +++ /dev/null @@ -1,253 +0,0 @@ -/* zutil.h -- internal interface and configuration of the compression library - * Copyright (C) 1995-2013 Jean-loup Gailly. - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* WARNING: this file should *not* be used by applications. It is - part of the implementation of the compression library and is - subject to change. Applications should only use zlib.h. - */ - -/* @(#) $Id: zutil.h 2809 2013-06-10 06:24:27Z chrislit $ */ - -#ifndef ZUTIL_H -#define ZUTIL_H - -#ifdef HAVE_HIDDEN -# define ZLIB_INTERNAL __attribute__((visibility ("hidden"))) -#else -# define ZLIB_INTERNAL -#endif - -#include "zlib.h" - -#if defined(STDC) && !defined(Z_SOLO) -# if !(defined(_WIN32_WCE) && defined(_MSC_VER)) -# include <stddef.h> -# endif -# include <string.h> -# include <stdlib.h> -#endif - -#ifdef Z_SOLO - typedef long ptrdiff_t; /* guess -- will be caught if guess is wrong */ -#endif - -#ifndef local -# define local static -#endif -/* compile with -Dlocal if your debugger can't find static symbols */ - -typedef unsigned char uch; -typedef uch FAR uchf; -typedef unsigned short ush; -typedef ush FAR ushf; -typedef unsigned long ulg; - -extern z_const char * const z_errmsg[10]; /* indexed by 2-zlib_error */ -/* (size given to avoid silly warnings with Visual C++) */ - -#define ERR_MSG(err) z_errmsg[Z_NEED_DICT-(err)] - -#define ERR_RETURN(strm,err) \ - return (strm->msg = ERR_MSG(err), (err)) -/* To be used only when the state is known to be valid */ - - /* common constants */ - -#ifndef DEF_WBITS -# define DEF_WBITS MAX_WBITS -#endif -/* default windowBits for decompression. MAX_WBITS is for compression only */ - -#if MAX_MEM_LEVEL >= 8 -# define DEF_MEM_LEVEL 8 -#else -# define DEF_MEM_LEVEL MAX_MEM_LEVEL -#endif -/* default memLevel */ - -#define STORED_BLOCK 0 -#define STATIC_TREES 1 -#define DYN_TREES 2 -/* The three kinds of block type */ - -#define MIN_MATCH 3 -#define MAX_MATCH 258 -/* The minimum and maximum match lengths */ - -#define PRESET_DICT 0x20 /* preset dictionary flag in zlib header */ - - /* target dependencies */ - -#if defined(MSDOS) || (defined(WINDOWS) && !defined(WIN32)) -# define OS_CODE 0x00 -# ifndef Z_SOLO -# if defined(__TURBOC__) || defined(__BORLANDC__) -# if (__STDC__ == 1) && (defined(__LARGE__) || defined(__COMPACT__)) - /* Allow compilation with ANSI keywords only enabled */ - void _Cdecl farfree( void *block ); - void *_Cdecl farmalloc( unsigned long nbytes ); -# else -# include <alloc.h> -# endif -# else /* MSC or DJGPP */ -# include <malloc.h> -# endif -# endif -#endif - -#ifdef AMIGA -# define OS_CODE 0x01 -#endif - -#if defined(VAXC) || defined(VMS) -# define OS_CODE 0x02 -# define F_OPEN(name, mode) \ - fopen((name), (mode), "mbc=60", "ctx=stm", "rfm=fix", "mrs=512") -#endif - -#if defined(ATARI) || defined(atarist) -# define OS_CODE 0x05 -#endif - -#ifdef OS2 -# define OS_CODE 0x06 -# if defined(M_I86) && !defined(Z_SOLO) -# include <malloc.h> -# endif -#endif - -#if defined(MACOS) || defined(TARGET_OS_MAC) -# define OS_CODE 0x07 -# ifndef Z_SOLO -# if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os -# include <unix.h> /* for fdopen */ -# else -# ifndef fdopen -# define fdopen(fd,mode) NULL /* No fdopen() */ -# endif -# endif -# endif -#endif - -#ifdef TOPS20 -# define OS_CODE 0x0a -#endif - -#ifdef WIN32 -# ifndef __CYGWIN__ /* Cygwin is Unix, not Win32 */ -# define OS_CODE 0x0b -# endif -#endif - -#ifdef __50SERIES /* Prime/PRIMOS */ -# define OS_CODE 0x0f -#endif - -#if defined(_BEOS_) || defined(RISCOS) -# define fdopen(fd,mode) NULL /* No fdopen() */ -#endif - -#if (defined(_MSC_VER) && (_MSC_VER > 600)) && !defined __INTERIX -# if defined(_WIN32_WCE) -# define fdopen(fd,mode) NULL /* No fdopen() */ -# ifndef _PTRDIFF_T_DEFINED - typedef int ptrdiff_t; -# define _PTRDIFF_T_DEFINED -# endif -# else -# define fdopen(fd,type) _fdopen(fd,type) -# endif -#endif - -#if defined(__BORLANDC__) && !defined(MSDOS) - #pragma warn -8004 - #pragma warn -8008 - #pragma warn -8066 -#endif - -/* provide prototypes for these when building zlib without LFS */ -#if !defined(_WIN32) && \ - (!defined(_LARGEFILE64_SOURCE) || _LFS64_LARGEFILE-0 == 0) - ZEXTERN uLong ZEXPORT adler32_combine64 OF((uLong, uLong, z_off_t)); - ZEXTERN uLong ZEXPORT crc32_combine64 OF((uLong, uLong, z_off_t)); -#endif - - /* common defaults */ - -#ifndef OS_CODE -# define OS_CODE 0x03 /* assume Unix */ -#endif - -#ifndef F_OPEN -# define F_OPEN(name, mode) fopen((name), (mode)) -#endif - - /* functions */ - -#if defined(pyr) || defined(Z_SOLO) -# define NO_MEMCPY -#endif -#if defined(SMALL_MEDIUM) && !defined(_MSC_VER) && !defined(__SC__) - /* Use our own functions for small and medium model with MSC <= 5.0. - * You may have to use the same strategy for Borland C (untested). - * The __SC__ check is for Symantec. - */ -# define NO_MEMCPY -#endif -#if defined(STDC) && !defined(HAVE_MEMCPY) && !defined(NO_MEMCPY) -# define HAVE_MEMCPY -#endif -#ifdef HAVE_MEMCPY -# ifdef SMALL_MEDIUM /* MSDOS small or medium model */ -# define zmemcpy _fmemcpy -# define zmemcmp _fmemcmp -# define zmemzero(dest, len) _fmemset(dest, 0, len) -# else -# define zmemcpy memcpy -# define zmemcmp memcmp -# define zmemzero(dest, len) memset(dest, 0, len) -# endif -#else - void ZLIB_INTERNAL zmemcpy OF((Bytef* dest, const Bytef* source, uInt len)); - int ZLIB_INTERNAL zmemcmp OF((const Bytef* s1, const Bytef* s2, uInt len)); - void ZLIB_INTERNAL zmemzero OF((Bytef* dest, uInt len)); -#endif - -/* Diagnostic functions */ -#ifdef DEBUG -# include <stdio.h> - extern int ZLIB_INTERNAL z_verbose; - extern void ZLIB_INTERNAL z_error OF((char *m)); -# define Assert(cond,msg) {if(!(cond)) z_error(msg);} -# define Trace(x) {if (z_verbose>=0) fprintf x ;} -# define Tracev(x) {if (z_verbose>0) fprintf x ;} -# define Tracevv(x) {if (z_verbose>1) fprintf x ;} -# define Tracec(c,x) {if (z_verbose>0 && (c)) fprintf x ;} -# define Tracecv(c,x) {if (z_verbose>1 && (c)) fprintf x ;} -#else -# define Assert(cond,msg) -# define Trace(x) -# define Tracev(x) -# define Tracevv(x) -# define Tracec(c,x) -# define Tracecv(c,x) -#endif - -#ifndef Z_SOLO - voidpf ZLIB_INTERNAL zcalloc OF((voidpf opaque, unsigned items, - unsigned size)); - void ZLIB_INTERNAL zcfree OF((voidpf opaque, voidpf ptr)); -#endif - -#define ZALLOC(strm, items, size) \ - (*((strm)->zalloc))((strm)->opaque, (items), (size)) -#define ZFREE(strm, addr) (*((strm)->zfree))((strm)->opaque, (voidpf)(addr)) -#define TRY_FREE(s, p) {if (p) ZFREE(s, p);} - -/* Reverse the bytes in a 32-bit value */ -#define ZSWAP32(q) ((((q) >> 24) & 0xff) + (((q) >> 8) & 0xff00) + \ - (((q) & 0xff00) << 8) + (((q) & 0xff) << 24)) - -#endif /* ZUTIL_H */ |