diff options
Diffstat (limited to 'Linux-PAM/modules/pam_namespace/argv_parse.c')
| -rw-r--r-- | Linux-PAM/modules/pam_namespace/argv_parse.c | 165 |
1 files changed, 0 insertions, 165 deletions
diff --git a/Linux-PAM/modules/pam_namespace/argv_parse.c b/Linux-PAM/modules/pam_namespace/argv_parse.c deleted file mode 100644 index acc76d74..00000000 --- a/Linux-PAM/modules/pam_namespace/argv_parse.c +++ /dev/null @@ -1,165 +0,0 @@ -/* - * argv_parse.c --- utility function for parsing a string into a - * argc, argv array. - * - * This file defines a function argv_parse() which parsing a - * passed-in string, handling double quotes and backslashes, and - * creates an allocated argv vector which can be freed using the - * argv_free() function. - * - * See argv_parse.h for the formal definition of the functions. - * - * Copyright 1999 by Theodore Ts'o. - * - * Permission to use, copy, modify, and distribute this software for - * any purpose with or without fee is hereby granted, provided that - * the above copyright notice and this permission notice appear in all - * copies. THE SOFTWARE IS PROVIDED "AS IS" AND THEODORE TS'O (THE - * AUTHOR) DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, - * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. - * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, - * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER - * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION - * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR - * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. (Isn't - * it sick that the U.S. culture of lawsuit-happy lawyers requires - * this kind of disclaimer?) - * - * Version 1.1, modified 2/27/1999 - */ - -#include <stdlib.h> -#include <ctype.h> -#include <string.h> -#include "argv_parse.h" - -#define STATE_WHITESPACE 1 -#define STATE_TOKEN 2 -#define STATE_QUOTED 3 - -/* - * Returns 0 on success, -1 on failure. - */ -int argv_parse(const char *in_buf, int *ret_argc, char ***ret_argv) -{ - int argc = 0, max_argc = 0; - char **argv, **new_argv, *buf, ch; - const char *cp = 0; - char *outcp = 0; - int state = STATE_WHITESPACE; - - buf = malloc(strlen(in_buf)+1); - if (!buf) - return -1; - - max_argc = 0; argc = 0; argv = 0; - outcp = buf; - for (cp = in_buf; (ch = *cp); cp++) { - if (state == STATE_WHITESPACE) { - if (isspace((int) ch)) - continue; - /* Not whitespace, so start a new token */ - state = STATE_TOKEN; - if (argc >= max_argc) { - max_argc += 3; - new_argv = realloc(argv, - (max_argc+1)*sizeof(char *)); - if (!new_argv) { - if (argv) free(argv); - free(buf); - return -1; - } - argv = new_argv; - } - argv[argc++] = outcp; - } - if (state == STATE_QUOTED) { - if (ch == '"') - state = STATE_TOKEN; - else - *outcp++ = ch; - continue; - } - /* Must be processing characters in a word */ - if (isspace((int) ch)) { - /* - * Terminate the current word and start - * looking for the beginning of the next word. - */ - *outcp++ = 0; - state = STATE_WHITESPACE; - continue; - } - if (ch == '"') { - state = STATE_QUOTED; - continue; - } - if (ch == '\\') { - ch = *++cp; - switch (ch) { - case '\0': - ch = '\\'; cp--; break; - case 'n': - ch = '\n'; break; - case 't': - ch = '\t'; break; - case 'b': - ch = '\b'; break; - } - } - *outcp++ = ch; - } - if (state != STATE_WHITESPACE) - *outcp++ = '\0'; - if (argv == 0) { - argv = malloc(sizeof(char *)); - free(buf); - } - argv[argc] = 0; - if (ret_argc) - *ret_argc = argc; - if (ret_argv) - *ret_argv = argv; - return 0; -} - -void argv_free(char **argv) -{ - if (*argv) - free(*argv); - free(argv); -} - -#ifdef DEBUG_ARGV_PARSE -/* - * For debugging - */ - -#include <stdio.h> - -int main(int argc, char **argv) -{ - int ac, ret; - char **av, **cpp; - char buf[256]; - - while (!feof(stdin)) { - if (fgets(buf, sizeof(buf), stdin) == NULL) - break; - ret = argv_parse(buf, &ac, &av); - if (ret != 0) { - printf("Argv_parse returned %d!\n", ret); - continue; - } - printf("Argv_parse returned %d arguments...\n", ac); - for (cpp = av; *cpp; cpp++) { - if (cpp != av) - printf(", "); - printf("'%s'", *cpp); - } - printf("\n"); - argv_free(av); - } - exit(0); -} -#endif |