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authorMichael Tokarev <mjt@tls.msk.ru>2014-12-20 08:48:44 +0000
committerMichael Tokarev <mjt@tls.msk.ru>2014-12-20 08:48:44 +0000
commit489bea7ee8e1dbecfa517b8415568044ab57c73a (patch)
tree44d4878d4c7da3f4908ea9a765ef9b8f9c141756 /sha1.h
mdadm (3.3.2-5) unstable; urgency=medium
* use-tempnode-not-devnode.patch: change udev rules file to use $tempnode which works both on wheezy and jessie udev, instead of $devnode which only works in jessie. At this stage it is better to make rules file compatible with old version instead of adding versioned dependency. Should be removed for jessie+1. (Closes: #770883) * fix Closes: list in previous entry (Closes: #771852) # imported from the archive
Diffstat (limited to 'sha1.h')
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diff --git a/sha1.h b/sha1.h
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+/* Declarations of functions and data types used for SHA1 sum
+ library functions.
+ Copyright (C) 2000, 2001, 2003, 2005, 2006, 2008
+ Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by the
+ Free Software Foundation; either version 2, or (at your option) any
+ later version.
+
+ This program 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 General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#ifndef SHA1_H
+# define SHA1_H 1
+
+#include <stdio.h>
+
+#if 1 /* defined HAVE_LIMITS_H || _LIBC */
+# include <limits.h>
+#endif
+
+/* The following contortions are an attempt to use the C preprocessor
+ to determine an unsigned integral type that is 32 bits wide. An
+ alternative approach is to use autoconf's AC_CHECK_SIZEOF macro, but
+ doing that would require that the configure script compile and *run*
+ the resulting executable. Locally running cross-compiled executables
+ is usually not possible. */
+
+#if 1 /* def _LIBC */
+# include <stdint.h>
+typedef uint32_t sha1_uint32;
+typedef uintptr_t sha1_uintptr;
+#else
+# define INT_MAX_32_BITS 2147483647
+
+/* If UINT_MAX isn't defined, assume it's a 32-bit type.
+ This should be valid for all systems GNU cares about because
+ that doesn't include 16-bit systems, and only modern systems
+ (that certainly have <limits.h>) have 64+-bit integral types. */
+
+# ifndef INT_MAX
+# define INT_MAX INT_MAX_32_BITS
+# endif
+
+# if INT_MAX == INT_MAX_32_BITS
+ typedef unsigned int sha1_uint32;
+# else
+# if SHRT_MAX == INT_MAX_32_BITS
+ typedef unsigned short sha1_uint32;
+# else
+# if LONG_MAX == INT_MAX_32_BITS
+ typedef unsigned long sha1_uint32;
+# else
+ /* The following line is intended to evoke an error.
+ Using #error is not portable enough. */
+ "Cannot determine unsigned 32-bit data type."
+# endif
+# endif
+# endif
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Structure to save state of computation between the single steps. */
+struct sha1_ctx
+{
+ sha1_uint32 A;
+ sha1_uint32 B;
+ sha1_uint32 C;
+ sha1_uint32 D;
+ sha1_uint32 E;
+
+ sha1_uint32 total[2];
+ sha1_uint32 buflen;
+ sha1_uint32 buffer[32];
+};
+
+/* Initialize structure containing state of computation. */
+extern void sha1_init_ctx (struct sha1_ctx *ctx);
+
+/* Starting with the result of former calls of this function (or the
+ initialization function update the context for the next LEN bytes
+ starting at BUFFER.
+ It is necessary that LEN is a multiple of 64!!! */
+extern void sha1_process_block (const void *buffer, size_t len,
+ struct sha1_ctx *ctx);
+
+/* Starting with the result of former calls of this function (or the
+ initialization function update the context for the next LEN bytes
+ starting at BUFFER.
+ It is NOT required that LEN is a multiple of 64. */
+extern void sha1_process_bytes (const void *buffer, size_t len,
+ struct sha1_ctx *ctx);
+
+/* Process the remaining bytes in the buffer and put result from CTX
+ in first 20 bytes following RESBUF. The result is always in little
+ endian byte order, so that a byte-wise output yields to the wanted
+ ASCII representation of the message digest.
+
+ IMPORTANT: On some systems it is required that RESBUF be correctly
+ aligned for a 32 bits value. */
+extern void *sha1_finish_ctx (struct sha1_ctx *ctx, void *resbuf);
+
+/* Put result from CTX in first 20 bytes following RESBUF. The result is
+ always in little endian byte order, so that a byte-wise output yields
+ to the wanted ASCII representation of the message digest.
+
+ IMPORTANT: On some systems it is required that RESBUF is correctly
+ aligned for a 32 bits value. */
+extern void *sha1_read_ctx (const struct sha1_ctx *ctx, void *resbuf);
+
+/* Compute SHA1 message digest for bytes read from STREAM. The
+ resulting message digest number will be written into the 20 bytes
+ beginning at RESBLOCK. */
+extern int sha1_stream (FILE *stream, void *resblock);
+
+/* Compute SHA1 message digest for LEN bytes beginning at BUFFER. The
+ result is always in little endian byte order, so that a byte-wise
+ output yields to the wanted ASCII representation of the message
+ digest. */
+extern void *sha1_buffer (const char *buffer, size_t len, void *resblock);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif