/src/compat/getopt1.c
https://code.google.com/ · C · 185 lines · 124 code · 28 blank · 33 comment · 14 complexity · 7046d39b5054d58b664a4426e3ad39e9 MD5 · raw file
- /* getopt_long and getopt_long_only entry points for GNU getopt.
- Copyright (C) 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1996,
- 1997, 1998, 2003 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
- You should have received a copy of the GNU General Public License along
- with this program; if not, write to the Free Software Foundation, Inc.,
- 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */
- #ifdef HAVE_CONFIG_H
- #include <config.h>
- #endif
- #ifdef _LIBC
- # include <getopt.h>
- #else
- # include "getopt.h"
- #endif
- #include <stdio.h>
- /* Comment out all this code if we are using the GNU C Library, and are not
- actually compiling the library itself. This code is part of the GNU C
- Library, but also included in many other GNU distributions. Compiling
- and linking in this code is a waste when using the GNU C library
- (especially if it is a shared library). Rather than having every GNU
- program understand `configure --with-gnu-libc' and omit the object files,
- it is simpler to just do this in the source for each such file. */
- #define GETOPT_INTERFACE_VERSION 2
- #if !defined _LIBC && defined __GLIBC__ && __GLIBC__ >= 2
- #include <gnu-versions.h>
- #if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION
- #define ELIDE_CODE
- #endif
- #endif
- #ifndef ELIDE_CODE
- /* This needs to come after some library #include
- to get __GNU_LIBRARY__ defined. */
- #ifdef __GNU_LIBRARY__
- #include <stdlib.h>
- #endif
- #ifndef NULL
- #define NULL 0
- #endif
- int
- getopt_long (int argc,
- char *const *argv,
- const char *options,
- const struct option *long_options,
- int *opt_index)
- {
- return _getopt_internal (argc, argv, options, long_options, opt_index, 0);
- }
- /* Like getopt_long, but '-' as well as '--' can indicate a long option.
- If an option that starts with '-' (not '--') doesn't match a long option,
- but does match a short option, it is parsed as a short option
- instead. */
- int
- getopt_long_only (int argc,
- char *const *argv,
- const char *options,
- const struct option *long_options,
- int *opt_index)
- {
- return _getopt_internal (argc, argv, options, long_options, opt_index, 1);
- }
- # ifdef _LIBC
- libc_hidden_def (getopt_long)
- libc_hidden_def (getopt_long_only)
- # endif
- #endif /* Not ELIDE_CODE. */
- #ifdef TEST
- #include <stdio.h>
- int
- main (int argc, char **argv)
- {
- int c;
- int digit_optind = 0;
- while (1)
- {
- int this_option_optind = optind ? optind : 1;
- int option_index = 0;
- static struct option long_options[] =
- {
- {"add", 1, 0, 0},
- {"append", 0, 0, 0},
- {"delete", 1, 0, 0},
- {"verbose", 0, 0, 0},
- {"create", 0, 0, 0},
- {"file", 1, 0, 0},
- {0, 0, 0, 0}
- };
- c = getopt_long (argc, argv, "abc:d:0123456789",
- long_options, &option_index);
- if (c == -1)
- break;
- switch (c)
- {
- case 0:
- printf ("option %s", long_options[option_index].name);
- if (optarg)
- printf (" with arg %s", optarg);
- printf ("\n");
- break;
- case '0':
- case '1':
- case '2':
- case '3':
- case '4':
- case '5':
- case '6':
- case '7':
- case '8':
- case '9':
- if (digit_optind != 0 && digit_optind != this_option_optind)
- printf ("digits occur in two different argv-elements.\n");
- digit_optind = this_option_optind;
- printf ("option %c\n", c);
- break;
- case 'a':
- printf ("option a\n");
- break;
- case 'b':
- printf ("option b\n");
- break;
- case 'c':
- printf ("option c with value `%s'\n", optarg);
- break;
- case 'd':
- printf ("option d with value `%s'\n", optarg);
- break;
- case '?':
- break;
- default:
- printf ("?? getopt returned character code 0%o ??\n", c);
- }
- }
- if (optind < argc)
- {
- printf ("non-option ARGV-elements: ");
- while (optind < argc)
- printf ("%s ", argv[optind++]);
- printf ("\n");
- }
- exit (0);
- }
- #endif /* TEST */