1 /* getopt_long and getopt_long_only entry points for GNU getopt.
2 Copyright (C) 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1996, 1997,
3 1998, 2004, 2006, 2009, 2010 Free Software Foundation, Inc.
4 This file is part of the GNU C Library.
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.
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.
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/>. */
25 #include "getopt_int.h"
29 /* This needs to come after some library #include
30 to get __GNU_LIBRARY__ defined. */
31 #ifdef __GNU_LIBRARY__
40 getopt_long (int argc, char *__getopt_argv_const *argv, const char *options,
41 const struct option *long_options, int *opt_index)
43 return _getopt_internal (argc, (char **) argv, options, long_options,
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)
52 return _getopt_internal_r (argc, argv, options, long_options, opt_index,
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
62 getopt_long_only (int argc, char *__getopt_argv_const *argv,
64 const struct option *long_options, int *opt_index)
66 return _getopt_internal (argc, (char **) argv, options, long_options,
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)
75 return _getopt_internal_r (argc, argv, options, long_options, opt_index,
85 main (int argc, char **argv)
92 int this_option_optind = optind ? optind : 1;
94 static const struct option long_options[] =
105 c = getopt_long (argc, argv, "abc:d:0123456789",
106 long_options, &option_index);
113 printf ("option %s", long_options[option_index].name);
115 printf (" with arg %s", optarg);
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);
136 printf ("option a\n");
140 printf ("option b\n");
144 printf ("option c with value `%s'\n", optarg);
148 printf ("option d with value `%s'\n", optarg);
155 printf ("?? getopt returned character code 0%o ??\n", c);
161 printf ("non-option ARGV-elements: ");
162 while (optind < argc)
163 printf ("%s ", argv[optind++]);