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| 1 /* getopt_long and getopt_long_only entry points for GNU getopt. |
| 2 Copyright (C) 1987,88,89,90,91,92,93,94,96,97,98,2004,2006 |
| 3 Free Software Foundation, Inc. |
| 4 This file is part of the GNU C Library. |
| 5 |
| 6 This program is free software: you can redistribute it and/or modify |
| 7 it under the terms of the GNU General Public License as published by |
| 8 the Free Software Foundation; either version 3 of the License, or |
| 9 (at your option) any later version. |
| 10 |
| 11 This program 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 |
| 14 GNU General Public License for more details. |
| 15 |
| 16 You should have received a copy of the GNU General Public License |
| 17 along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
| 18 |
| 19 #ifdef _LIBC |
| 20 # include <getopt.h> |
| 21 #else |
| 22 # include <config.h> |
| 23 # include "getopt.h" |
| 24 #endif |
| 25 #include "getopt_int.h" |
| 26 |
| 27 #include <stdio.h> |
| 28 |
| 29 /* This needs to come after some library #include |
| 30 to get __GNU_LIBRARY__ defined. */ |
| 31 #ifdef __GNU_LIBRARY__ |
| 32 #include <stdlib.h> |
| 33 #endif |
| 34 |
| 35 #ifndef NULL |
| 36 #define NULL 0 |
| 37 #endif |
| 38 |
| 39 int |
| 40 getopt_long (int argc, char *__getopt_argv_const *argv, const char *options, |
| 41 const struct option *long_options, int *opt_index) |
| 42 { |
| 43 return _getopt_internal (argc, (char **) argv, options, long_options, |
| 44 opt_index, 0, 0); |
| 45 } |
| 46 |
| 47 int |
| 48 _getopt_long_r (int argc, char **argv, const char *options, |
| 49 const struct option *long_options, int *opt_index, |
| 50 struct _getopt_data *d) |
| 51 { |
| 52 return _getopt_internal_r (argc, argv, options, long_options, opt_index, |
| 53 0, 0, d); |
| 54 } |
| 55 |
| 56 /* Like getopt_long, but '-' as well as '--' can indicate a long option. |
| 57 If an option that starts with '-' (not '--') doesn't match a long option, |
| 58 but does match a short option, it is parsed as a short option |
| 59 instead. */ |
| 60 |
| 61 int |
| 62 getopt_long_only (int argc, char *__getopt_argv_const *argv, |
| 63 const char *options, |
| 64 const struct option *long_options, int *opt_index) |
| 65 { |
| 66 return _getopt_internal (argc, (char **) argv, options, long_options, |
| 67 opt_index, 1, 0); |
| 68 } |
| 69 |
| 70 int |
| 71 _getopt_long_only_r (int argc, char **argv, const char *options, |
| 72 const struct option *long_options, int *opt_index, |
| 73 struct _getopt_data *d) |
| 74 { |
| 75 return _getopt_internal_r (argc, argv, options, long_options, opt_index, |
| 76 1, 0, d); |
| 77 } |
| 78 |
| 79 |
| 80 #ifdef TEST |
| 81 |
| 82 #include <stdio.h> |
| 83 |
| 84 int |
| 85 main (int argc, char **argv) |
| 86 { |
| 87 int c; |
| 88 int digit_optind = 0; |
| 89 |
| 90 while (1) |
| 91 { |
| 92 int this_option_optind = optind ? optind : 1; |
| 93 int option_index = 0; |
| 94 static struct option long_options[] = |
| 95 { |
| 96 {"add", 1, 0, 0}, |
| 97 {"append", 0, 0, 0}, |
| 98 {"delete", 1, 0, 0}, |
| 99 {"verbose", 0, 0, 0}, |
| 100 {"create", 0, 0, 0}, |
| 101 {"file", 1, 0, 0}, |
| 102 {0, 0, 0, 0} |
| 103 }; |
| 104 |
| 105 c = getopt_long (argc, argv, "abc:d:0123456789", |
| 106 long_options, &option_index); |
| 107 if (c == -1) |
| 108 break; |
| 109 |
| 110 switch (c) |
| 111 { |
| 112 case 0: |
| 113 printf ("option %s", long_options[option_index].name); |
| 114 if (optarg) |
| 115 printf (" with arg %s", optarg); |
| 116 printf ("\n"); |
| 117 break; |
| 118 |
| 119 case '0': |
| 120 case '1': |
| 121 case '2': |
| 122 case '3': |
| 123 case '4': |
| 124 case '5': |
| 125 case '6': |
| 126 case '7': |
| 127 case '8': |
| 128 case '9': |
| 129 if (digit_optind != 0 && digit_optind != this_option_optind) |
| 130 printf ("digits occur in two different argv-elements.\n"); |
| 131 digit_optind = this_option_optind; |
| 132 printf ("option %c\n", c); |
| 133 break; |
| 134 |
| 135 case 'a': |
| 136 printf ("option a\n"); |
| 137 break; |
| 138 |
| 139 case 'b': |
| 140 printf ("option b\n"); |
| 141 break; |
| 142 |
| 143 case 'c': |
| 144 printf ("option c with value `%s'\n", optarg); |
| 145 break; |
| 146 |
| 147 case 'd': |
| 148 printf ("option d with value `%s'\n", optarg); |
| 149 break; |
| 150 |
| 151 case '?': |
| 152 break; |
| 153 |
| 154 default: |
| 155 printf ("?? getopt returned character code 0%o ??\n", c); |
| 156 } |
| 157 } |
| 158 |
| 159 if (optind < argc) |
| 160 { |
| 161 printf ("non-option ARGV-elements: "); |
| 162 while (optind < argc) |
| 163 printf ("%s ", argv[optind++]); |
| 164 printf ("\n"); |
| 165 } |
| 166 |
| 167 exit (0); |
| 168 } |
| 169 |
| 170 #endif /* TEST */ |
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