1 /* getopt_long and getopt_long_only entry points for GNU getopt.
2 Copyright (C) 1987-1994,1996-1998,2004,2009 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library 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 GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, write to the Free
17 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
29 #include "getopt_int.h"
33 /* Comment out all this code if we are using the GNU C Library, and are not
34 actually compiling the library itself. This code is part of the GNU C
35 Library, but also included in many other GNU distributions. Compiling
36 and linking in this code is a waste when using the GNU C library
37 (especially if it is a shared library). Rather than having every GNU
38 program understand `configure --with-gnu-libc' and omit the object files,
39 it is simpler to just do this in the source for each such file. */
41 #define GETOPT_INTERFACE_VERSION 2
42 #if !defined _LIBC && defined __GLIBC__ && __GLIBC__ >= 2
43 #include <gnu-versions.h>
44 #if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION
52 /* This needs to come after some library #include
53 to get __GNU_LIBRARY__ defined. */
54 #ifdef __GNU_LIBRARY__
63 getopt_long (int argc, char *const *argv, const char *options,
64 const struct option *long_options, int *opt_index)
66 return _getopt_internal (argc, argv, options, long_options, opt_index, 0, 0);
70 _getopt_long_r (int argc, char *const *argv, const char *options,
71 const struct option *long_options, int *opt_index,
72 struct _getopt_data *d)
74 return _getopt_internal_r (argc, argv, options, long_options, opt_index,
78 /* Like getopt_long, but '-' as well as '--' can indicate a long option.
79 If an option that starts with '-' (not '--') doesn't match a long option,
80 but does match a short option, it is parsed as a short option
84 getopt_long_only (int argc, char *const *argv, const char *options,
85 const struct option *long_options, int *opt_index)
87 return _getopt_internal (argc, argv, options, long_options, opt_index, 1, 0);
91 _getopt_long_only_r (int argc, char *const *argv, const char *options,
92 const struct option *long_options, int *opt_index,
93 struct _getopt_data *d)
95 return _getopt_internal_r (argc, argv, options, long_options, opt_index,
99 #endif /* Not ELIDE_CODE. */
106 main (int argc, char **argv)
109 int digit_optind = 0;
113 int this_option_optind = optind ? optind : 1;
114 int option_index = 0;
115 static struct option long_options[] =
120 {"verbose", 0, 0, 0},
126 c = getopt_long (argc, argv, "abc:d:0123456789",
127 long_options, &option_index);
134 printf ("option %s", long_options[option_index].name);
136 printf (" with arg %s", optarg);
150 if (digit_optind != 0 && digit_optind != this_option_optind)
151 printf ("digits occur in two different argv-elements.\n");
152 digit_optind = this_option_optind;
153 printf ("option %c\n", c);
157 printf ("option a\n");
161 printf ("option b\n");
165 printf ("option c with value `%s'\n", optarg);
169 printf ("option d with value `%s'\n", optarg);
176 printf ("?? getopt returned character code 0%o ??\n", c);
182 printf ("non-option ARGV-elements: ");
183 while (optind < argc)
184 printf ("%s ", argv[optind++]);