| 1 | /* getopt_long and getopt_long_only entry points for GNU getopt. |
| 2 | Copyright (C) 1987, 88, 89, 90, 91, 92, 1993 |
| 3 | Free Software Foundation, Inc. |
| 4 | |
| 5 | This program is free software; you can redistribute it and/or modify it |
| 6 | under the terms of the GNU General Public License as published by the |
| 7 | Free Software Foundation; either version 2, or (at your option) any |
| 8 | later version. |
| 9 | |
| 10 | This program is distributed in the hope that it will be useful, |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | GNU General Public License for more details. |
| 14 | |
| 15 | You should have received a copy of the GNU General Public License |
| 16 | along with this program; if not, write to the Free Software |
| 17 | Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ |
| 18 | \f |
| 19 | #ifdef HAVE_CONFIG_H |
| 20 | #include "config.h" |
| 21 | #endif |
| 22 | |
| 23 | #include "getopt.h" |
| 24 | |
| 25 | #if !__STDC__ && !defined(const) && IN_GCC |
| 26 | #define const |
| 27 | #endif |
| 28 | |
| 29 | #include <stdio.h> |
| 30 | |
| 31 | /* Comment out all this code if we are using the GNU C Library, and are not |
| 32 | actually compiling the library itself. This code is part of the GNU C |
| 33 | Library, but also included in many other GNU distributions. Compiling |
| 34 | and linking in this code is a waste when using the GNU C library |
| 35 | (especially if it is a shared library). Rather than having every GNU |
| 36 | program understand `configure --with-gnu-libc' and omit the object files, |
| 37 | it is simpler to just do this in the source for each such file. */ |
| 38 | |
| 39 | #if defined (_LIBC) || !defined (__GNU_LIBRARY__) |
| 40 | |
| 41 | |
| 42 | /* This needs to come after some library #include |
| 43 | to get __GNU_LIBRARY__ defined. */ |
| 44 | #ifdef __GNU_LIBRARY__ |
| 45 | #include <stdlib.h> |
| 46 | #else |
| 47 | char *getenv (); |
| 48 | #endif |
| 49 | |
| 50 | #ifndef NULL |
| 51 | #define NULL 0 |
| 52 | #endif |
| 53 | |
| 54 | int |
| 55 | getopt_long (argc, argv, options, long_options, opt_index) |
| 56 | int argc; |
| 57 | char *const *argv; |
| 58 | const char *options; |
| 59 | const struct option *long_options; |
| 60 | int *opt_index; |
| 61 | { |
| 62 | return _getopt_internal (argc, argv, options, long_options, opt_index, 0); |
| 63 | } |
| 64 | |
| 65 | /* Like getopt_long, but '-' as well as '--' can indicate a long option. |
| 66 | If an option that starts with '-' (not '--') doesn't match a long option, |
| 67 | but does match a short option, it is parsed as a short option |
| 68 | instead. */ |
| 69 | |
| 70 | int |
| 71 | getopt_long_only (argc, argv, options, long_options, opt_index) |
| 72 | int argc; |
| 73 | char *const *argv; |
| 74 | const char *options; |
| 75 | const struct option *long_options; |
| 76 | int *opt_index; |
| 77 | { |
| 78 | return _getopt_internal (argc, argv, options, long_options, opt_index, 1); |
| 79 | } |
| 80 | |
| 81 | |
| 82 | #endif /* _LIBC or not __GNU_LIBRARY__. */ |
| 83 | \f |
| 84 | #ifdef TEST |
| 85 | |
| 86 | #include <stdio.h> |
| 87 | |
| 88 | int |
| 89 | main (argc, argv) |
| 90 | int argc; |
| 91 | char **argv; |
| 92 | { |
| 93 | int c; |
| 94 | int digit_optind = 0; |
| 95 | |
| 96 | while (1) |
| 97 | { |
| 98 | int this_option_optind = optind ? optind : 1; |
| 99 | int option_index = 0; |
| 100 | static struct option long_options[] = |
| 101 | { |
| 102 | {"add", 1, 0, 0}, |
| 103 | {"append", 0, 0, 0}, |
| 104 | {"delete", 1, 0, 0}, |
| 105 | {"verbose", 0, 0, 0}, |
| 106 | {"create", 0, 0, 0}, |
| 107 | {"file", 1, 0, 0}, |
| 108 | {0, 0, 0, 0} |
| 109 | }; |
| 110 | |
| 111 | c = getopt_long (argc, argv, "abc:d:0123456789", |
| 112 | long_options, &option_index); |
| 113 | if (c == EOF) |
| 114 | break; |
| 115 | |
| 116 | switch (c) |
| 117 | { |
| 118 | case 0: |
| 119 | printf ("option %s", long_options[option_index].name); |
| 120 | if (optarg) |
| 121 | printf (" with arg %s", optarg); |
| 122 | printf ("\n"); |
| 123 | break; |
| 124 | |
| 125 | case '0': |
| 126 | case '1': |
| 127 | case '2': |
| 128 | case '3': |
| 129 | case '4': |
| 130 | case '5': |
| 131 | case '6': |
| 132 | case '7': |
| 133 | case '8': |
| 134 | case '9': |
| 135 | if (digit_optind != 0 && digit_optind != this_option_optind) |
| 136 | printf ("digits occur in two different argv-elements.\n"); |
| 137 | digit_optind = this_option_optind; |
| 138 | printf ("option %c\n", c); |
| 139 | break; |
| 140 | |
| 141 | case 'a': |
| 142 | printf ("option a\n"); |
| 143 | break; |
| 144 | |
| 145 | case 'b': |
| 146 | printf ("option b\n"); |
| 147 | break; |
| 148 | |
| 149 | case 'c': |
| 150 | printf ("option c with value `%s'\n", optarg); |
| 151 | break; |
| 152 | |
| 153 | case 'd': |
| 154 | printf ("option d with value `%s'\n", optarg); |
| 155 | break; |
| 156 | |
| 157 | case '?': |
| 158 | break; |
| 159 | |
| 160 | default: |
| 161 | printf ("?? getopt returned character code 0%o ??\n", c); |
| 162 | } |
| 163 | } |
| 164 | |
| 165 | if (optind < argc) |
| 166 | { |
| 167 | printf ("non-option ARGV-elements: "); |
| 168 | while (optind < argc) |
| 169 | printf ("%s ", argv[optind++]); |
| 170 | printf ("\n"); |
| 171 | } |
| 172 | |
| 173 | exit (0); |
| 174 | } |
| 175 | |
| 176 | #endif /* TEST */ |