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267 giacomo 1
/* getopt_long and getopt_long_only entry points for GNU getopt.
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   Copyright (C) 1987,88,89,90,91,92,93,94,96,97 Free Software Foundation, Inc.
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   This file is part of the GNU C Library.
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   The GNU C Library is free software; you can redistribute it and/or
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   modify it under the terms of the GNU Library General Public License as
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   published by the Free Software Foundation; either version 2 of the
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   License, or (at your option) any later version.
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   The GNU C Library is distributed in the hope that it will be useful,
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   but WITHOUT ANY WARRANTY; without even the implied warranty of
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   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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   Library General Public License for more details.
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   You should have received a copy of the GNU Library General Public
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   License along with the GNU C Library; see the file COPYING.LIB.  If not,
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   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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   Boston, MA 02111-1307, USA.  */
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include "getopt.h"
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#if !defined (__STDC__) || !__STDC__
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/* This is a separate conditional since some stdc systems
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   reject `defined (const)'.  */
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#ifndef const
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#define const
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#endif
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#endif
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#include <stdio.h>
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/* Comment out all this code if we are using the GNU C Library, and are not
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   actually compiling the library itself.  This code is part of the GNU C
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   Library, but also included in many other GNU distributions.  Compiling
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   and linking in this code is a waste when using the GNU C library
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   (especially if it is a shared library).  Rather than having every GNU
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   program understand `configure --with-gnu-libc' and omit the object files,
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   it is simpler to just do this in the source for each such file.  */
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#define GETOPT_INTERFACE_VERSION 2
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#if !defined (_LIBC) && defined (__GLIBC__) && __GLIBC__ >= 2
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#include <gnu-versions.h>
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#if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION
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#define ELIDE_CODE
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#endif
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#endif
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#ifndef ELIDE_CODE
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/* This needs to come after some library #include
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   to get __GNU_LIBRARY__ defined.  */
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#ifdef __GNU_LIBRARY__
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#include <stdlib.h>
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#endif
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#ifndef NULL
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#define NULL 0
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#endif
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int
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getopt_long (argc, argv, options, long_options, opt_index)
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     int argc;
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     char *const *argv;
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     const char *options;
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     const struct option *long_options;
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     int *opt_index;
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{
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  return _getopt_internal (argc, argv, options, long_options, opt_index, 0);
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}
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/* Like getopt_long, but '-' as well as '--' can indicate a long option.
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   If an option that starts with '-' (not '--') doesn't match a long option,
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   but does match a short option, it is parsed as a short option
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   instead.  */
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int
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getopt_long_only (argc, argv, options, long_options, opt_index)
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     int argc;
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     char *const *argv;
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     const char *options;
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     const struct option *long_options;
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     int *opt_index;
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{
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  return _getopt_internal (argc, argv, options, long_options, opt_index, 1);
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}
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#endif  /* Not ELIDE_CODE.  */
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#ifdef TEST
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#include <stdio.h>
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int
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main (argc, argv)
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     int argc;
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     char **argv;
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{
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  int c;
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  int digit_optind = 0;
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  while (1)
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    {
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      int this_option_optind = optind ? optind : 1;
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      int option_index = 0;
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      static struct option long_options[] =
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      {
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        {"add", 1, 0, 0},
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        {"append", 0, 0, 0},
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        {"delete", 1, 0, 0},
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        {"verbose", 0, 0, 0},
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        {"create", 0, 0, 0},
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        {"file", 1, 0, 0},
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        {0, 0, 0, 0}
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      };
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      c = getopt_long (argc, argv, "abc:d:0123456789",
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                       long_options, &option_index);
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      if (c == -1)
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        break;
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      switch (c)
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        {
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        case 0:
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          printf ("option %s", long_options[option_index].name);
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          if (optarg)
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            printf (" with arg %s", optarg);
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          printf ("\n");
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          break;
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        case '0':
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        case '1':
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        case '2':
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        case '3':
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        case '4':
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        case '5':
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        case '6':
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        case '7':
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        case '8':
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        case '9':
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          if (digit_optind != 0 && digit_optind != this_option_optind)
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            printf ("digits occur in two different argv-elements.\n");
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          digit_optind = this_option_optind;
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          printf ("option %c\n", c);
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          break;
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        case 'a':
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          printf ("option a\n");
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          break;
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        case 'b':
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          printf ("option b\n");
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          break;
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        case 'c':
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          printf ("option c with value `%s'\n", optarg);
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          break;
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        case 'd':
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          printf ("option d with value `%s'\n", optarg);
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          break;
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        case '?':
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          break;
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        default:
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          printf ("?? getopt returned character code 0%o ??\n", c);
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        }
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    }
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  if (optind < argc)
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    {
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      printf ("non-option ARGV-elements: ");
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      while (optind < argc)
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        printf ("%s ", argv[optind++]);
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      printf ("\n");
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    }
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  exit (0);
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}
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#endif /* TEST */