| 1 | /* (C) 1998 Red Hat Software, Inc. -- Licensing details are in the COPYING |
| 2 | file accompanying popt source distributions, available from |
| 3 | ftp://ftp.redhat.com/pub/code/popt */ |
| 4 | |
| 5 | #ifdef HAVE_CONFIG_H |
| 6 | #include "config.h" |
| 7 | #endif |
| 8 | |
| 9 | #include <ctype.h> |
| 10 | #include <stdlib.h> |
| 11 | #include <string.h> |
| 12 | |
| 13 | #include "popt.h" |
| 14 | |
| 15 | int poptParseArgvString(char * s, int * argcPtr, char *** argvPtr) { |
| 16 | char * buf = strcpy(alloca(strlen(s) + 1), s); |
| 17 | char * bufStart = buf; |
| 18 | char * src, * dst; |
| 19 | char quote = '\0'; |
| 20 | int argvAlloced = 5; |
| 21 | char ** argv = malloc(sizeof(*argv) * argvAlloced); |
| 22 | char ** argv2; |
| 23 | int argc = 0; |
| 24 | int i; |
| 25 | |
| 26 | src = s; |
| 27 | dst = buf; |
| 28 | argv[argc] = buf; |
| 29 | |
| 30 | memset(buf, '\0', strlen(s) + 1); |
| 31 | |
| 32 | while (*src) { |
| 33 | if (quote == *src) { |
| 34 | quote = '\0'; |
| 35 | } else if (quote) { |
| 36 | if (*src == '\\') { |
| 37 | src++; |
| 38 | if (!*src) { |
| 39 | free(argv); |
| 40 | return POPT_ERROR_BADQUOTE; |
| 41 | } |
| 42 | if (*src != quote) *buf++ = '\\'; |
| 43 | } |
| 44 | *buf++ = *src; |
| 45 | } else if (isspace(*src)) { |
| 46 | if (*argv[argc]) { |
| 47 | buf++, argc++; |
| 48 | if (argc == argvAlloced) { |
| 49 | argvAlloced += 5; |
| 50 | argv = realloc(argv, sizeof(*argv) * argvAlloced); |
| 51 | } |
| 52 | argv[argc] = buf; |
| 53 | } |
| 54 | } else switch (*src) { |
| 55 | case '"': |
| 56 | case '\'': |
| 57 | quote = *src; |
| 58 | break; |
| 59 | case '\\': |
| 60 | src++; |
| 61 | if (!*src) { |
| 62 | free(argv); |
| 63 | return POPT_ERROR_BADQUOTE; |
| 64 | } |
| 65 | /* fallthrough */ |
| 66 | default: |
| 67 | *buf++ = *src; |
| 68 | } |
| 69 | |
| 70 | src++; |
| 71 | } |
| 72 | |
| 73 | if (strlen(argv[argc])) { |
| 74 | argc++, buf++; |
| 75 | } |
| 76 | |
| 77 | dst = malloc(argc * sizeof(*argv) + (buf - bufStart)); |
| 78 | argv2 = (void *) dst; |
| 79 | dst += argc * sizeof(*argv); |
| 80 | memcpy(argv2, argv, argc * sizeof(*argv)); |
| 81 | memcpy(dst, bufStart, buf - bufStart); |
| 82 | |
| 83 | for (i = 0; i < argc; i++) { |
| 84 | argv2[i] = dst + (argv[i] - bufStart); |
| 85 | } |
| 86 | |
| 87 | free(argv); |
| 88 | |
| 89 | *argvPtr = argv2; |
| 90 | *argcPtr = argc; |
| 91 | |
| 92 | return 0; |
| 93 | } |