jjako | 1d3db97 | 2004-01-16 09:56:56 +0000 | [diff] [blame] | 1 | /* getopt_long and getopt_long_only entry points for GNU getopt. |
| 2 | Copyright (C) 1987,88,89,90,91,92,93,94,96,97,98 |
| 3 | Free Software Foundation, Inc. |
| 4 | This file is part of the GNU C Library. |
| 5 | |
| 6 | The GNU C Library is free software; you can redistribute it and/or |
| 7 | modify it under the terms of the GNU Lesser General Public |
| 8 | License as published by the Free Software Foundation; either |
| 9 | version 2.1 of the License, or (at your option) any later version. |
| 10 | |
| 11 | The GNU C Library is distributed in the hope that it will be useful, |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 14 | Lesser General Public License for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU Lesser General Public |
| 17 | License along with the GNU C Library; if not, write to the Free |
| 18 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 19 | 02111-1307 USA. */ |
| 20 | |
| 21 | #ifdef HAVE_CONFIG_H |
| 22 | #include <config.h> |
| 23 | #endif |
| 24 | |
| 25 | #include "getopt.h" |
| 26 | |
| 27 | #if !defined __STDC__ || !__STDC__ |
| 28 | /* This is a separate conditional since some stdc systems |
| 29 | reject `defined (const)'. */ |
| 30 | #ifndef const |
| 31 | #define const |
| 32 | #endif |
| 33 | #endif |
| 34 | |
| 35 | #include <stdio.h> |
| 36 | |
| 37 | /* Comment out all this code if we are using the GNU C Library, and are not |
| 38 | actually compiling the library itself. This code is part of the GNU C |
| 39 | Library, but also included in many other GNU distributions. Compiling |
| 40 | and linking in this code is a waste when using the GNU C library |
| 41 | (especially if it is a shared library). Rather than having every GNU |
| 42 | program understand `configure --with-gnu-libc' and omit the object files, |
| 43 | it is simpler to just do this in the source for each such file. */ |
| 44 | |
| 45 | #define GETOPT_INTERFACE_VERSION 2 |
| 46 | #if !defined _LIBC && defined __GLIBC__ && __GLIBC__ >= 2 |
| 47 | #include <gnu-versions.h> |
| 48 | #if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION |
| 49 | #define ELIDE_CODE |
| 50 | #endif |
| 51 | #endif |
| 52 | |
| 53 | #ifndef ELIDE_CODE |
| 54 | |
jjako | 1d3db97 | 2004-01-16 09:56:56 +0000 | [diff] [blame] | 55 | /* This needs to come after some library #include |
| 56 | to get __GNU_LIBRARY__ defined. */ |
| 57 | #ifdef __GNU_LIBRARY__ |
| 58 | #include <stdlib.h> |
| 59 | #endif |
| 60 | |
| 61 | #ifndef NULL |
| 62 | #define NULL 0 |
| 63 | #endif |
| 64 | |
Harald Welte | bed35df | 2011-11-02 13:06:18 +0100 | [diff] [blame] | 65 | int getopt_long(argc, argv, options, long_options, opt_index) |
| 66 | int argc; |
| 67 | char *const *argv; |
| 68 | const char *options; |
| 69 | const struct option *long_options; |
| 70 | int *opt_index; |
jjako | 1d3db97 | 2004-01-16 09:56:56 +0000 | [diff] [blame] | 71 | { |
Harald Welte | bed35df | 2011-11-02 13:06:18 +0100 | [diff] [blame] | 72 | return _getopt_internal(argc, argv, options, long_options, opt_index, |
| 73 | 0); |
jjako | 1d3db97 | 2004-01-16 09:56:56 +0000 | [diff] [blame] | 74 | } |
| 75 | |
| 76 | /* Like getopt_long, but '-' as well as '--' can indicate a long option. |
| 77 | If an option that starts with '-' (not '--') doesn't match a long option, |
| 78 | but does match a short option, it is parsed as a short option |
| 79 | instead. */ |
| 80 | |
Harald Welte | bed35df | 2011-11-02 13:06:18 +0100 | [diff] [blame] | 81 | int getopt_long_only(argc, argv, options, long_options, opt_index) |
| 82 | int argc; |
| 83 | char *const *argv; |
| 84 | const char *options; |
| 85 | const struct option *long_options; |
| 86 | int *opt_index; |
jjako | 1d3db97 | 2004-01-16 09:56:56 +0000 | [diff] [blame] | 87 | { |
Harald Welte | bed35df | 2011-11-02 13:06:18 +0100 | [diff] [blame] | 88 | return _getopt_internal(argc, argv, options, long_options, opt_index, |
| 89 | 1); |
jjako | 1d3db97 | 2004-01-16 09:56:56 +0000 | [diff] [blame] | 90 | } |
| 91 | |
Harald Welte | bed35df | 2011-11-02 13:06:18 +0100 | [diff] [blame] | 92 | #endif /* Not ELIDE_CODE. */ |
jjako | 1d3db97 | 2004-01-16 09:56:56 +0000 | [diff] [blame] | 93 | |
| 94 | #ifdef TEST |
| 95 | |
| 96 | #include <stdio.h> |
| 97 | |
Harald Welte | bed35df | 2011-11-02 13:06:18 +0100 | [diff] [blame] | 98 | int main(argc, argv) |
| 99 | int argc; |
| 100 | char **argv; |
jjako | 1d3db97 | 2004-01-16 09:56:56 +0000 | [diff] [blame] | 101 | { |
Harald Welte | bed35df | 2011-11-02 13:06:18 +0100 | [diff] [blame] | 102 | int c; |
| 103 | int digit_optind = 0; |
jjako | 1d3db97 | 2004-01-16 09:56:56 +0000 | [diff] [blame] | 104 | |
Harald Welte | bed35df | 2011-11-02 13:06:18 +0100 | [diff] [blame] | 105 | while (1) { |
| 106 | int this_option_optind = optind ? optind : 1; |
| 107 | int option_index = 0; |
| 108 | static struct option long_options[] = { |
| 109 | {"add", 1, 0, 0}, |
| 110 | {"append", 0, 0, 0}, |
| 111 | {"delete", 1, 0, 0}, |
| 112 | {"verbose", 0, 0, 0}, |
| 113 | {"create", 0, 0, 0}, |
| 114 | {"file", 1, 0, 0}, |
| 115 | {0, 0, 0, 0} |
| 116 | }; |
jjako | 1d3db97 | 2004-01-16 09:56:56 +0000 | [diff] [blame] | 117 | |
Harald Welte | bed35df | 2011-11-02 13:06:18 +0100 | [diff] [blame] | 118 | c = getopt_long(argc, argv, "abc:d:0123456789", |
| 119 | long_options, &option_index); |
| 120 | if (c == -1) |
| 121 | break; |
jjako | 1d3db97 | 2004-01-16 09:56:56 +0000 | [diff] [blame] | 122 | |
Harald Welte | bed35df | 2011-11-02 13:06:18 +0100 | [diff] [blame] | 123 | switch (c) { |
| 124 | case 0: |
| 125 | printf("option %s", long_options[option_index].name); |
| 126 | if (optarg) |
| 127 | printf(" with arg %s", optarg); |
| 128 | printf("\n"); |
| 129 | break; |
jjako | 1d3db97 | 2004-01-16 09:56:56 +0000 | [diff] [blame] | 130 | |
Harald Welte | bed35df | 2011-11-02 13:06:18 +0100 | [diff] [blame] | 131 | case '0': |
| 132 | case '1': |
| 133 | case '2': |
| 134 | case '3': |
| 135 | case '4': |
| 136 | case '5': |
| 137 | case '6': |
| 138 | case '7': |
| 139 | case '8': |
| 140 | case '9': |
| 141 | if (digit_optind != 0 |
| 142 | && digit_optind != this_option_optind) |
| 143 | printf |
| 144 | ("digits occur in two different argv-elements.\n"); |
| 145 | digit_optind = this_option_optind; |
| 146 | printf("option %c\n", c); |
| 147 | break; |
jjako | 1d3db97 | 2004-01-16 09:56:56 +0000 | [diff] [blame] | 148 | |
Harald Welte | bed35df | 2011-11-02 13:06:18 +0100 | [diff] [blame] | 149 | case 'a': |
| 150 | printf("option a\n"); |
| 151 | break; |
jjako | 1d3db97 | 2004-01-16 09:56:56 +0000 | [diff] [blame] | 152 | |
Harald Welte | bed35df | 2011-11-02 13:06:18 +0100 | [diff] [blame] | 153 | case 'b': |
| 154 | printf("option b\n"); |
| 155 | break; |
jjako | 1d3db97 | 2004-01-16 09:56:56 +0000 | [diff] [blame] | 156 | |
Harald Welte | bed35df | 2011-11-02 13:06:18 +0100 | [diff] [blame] | 157 | case 'c': |
| 158 | printf("option c with value `%s'\n", optarg); |
| 159 | break; |
jjako | 1d3db97 | 2004-01-16 09:56:56 +0000 | [diff] [blame] | 160 | |
Harald Welte | bed35df | 2011-11-02 13:06:18 +0100 | [diff] [blame] | 161 | case 'd': |
| 162 | printf("option d with value `%s'\n", optarg); |
| 163 | break; |
jjako | 1d3db97 | 2004-01-16 09:56:56 +0000 | [diff] [blame] | 164 | |
Harald Welte | bed35df | 2011-11-02 13:06:18 +0100 | [diff] [blame] | 165 | case '?': |
| 166 | break; |
jjako | 1d3db97 | 2004-01-16 09:56:56 +0000 | [diff] [blame] | 167 | |
Harald Welte | bed35df | 2011-11-02 13:06:18 +0100 | [diff] [blame] | 168 | default: |
| 169 | printf("?? getopt returned character code 0%o ??\n", c); |
| 170 | } |
jjako | 1d3db97 | 2004-01-16 09:56:56 +0000 | [diff] [blame] | 171 | } |
jjako | 1d3db97 | 2004-01-16 09:56:56 +0000 | [diff] [blame] | 172 | |
Harald Welte | bed35df | 2011-11-02 13:06:18 +0100 | [diff] [blame] | 173 | if (optind < argc) { |
| 174 | printf("non-option ARGV-elements: "); |
| 175 | while (optind < argc) |
| 176 | printf("%s ", argv[optind++]); |
| 177 | printf("\n"); |
| 178 | } |
jjako | 1d3db97 | 2004-01-16 09:56:56 +0000 | [diff] [blame] | 179 | |
Harald Welte | bed35df | 2011-11-02 13:06:18 +0100 | [diff] [blame] | 180 | exit(0); |
jjako | 1d3db97 | 2004-01-16 09:56:56 +0000 | [diff] [blame] | 181 | } |
| 182 | |
| 183 | #endif /* TEST */ |