libs/port/getopt1.c

   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
   3      Free Software Foundation, Inc.
   4    This file is part of the GNU C Library.
   5
   6    The GNU C Library is free software; you can redistribute it and/or
   7    modify it under the terms of the GNU Lesser General Public
   8    License as published by the Free Software Foundation; either
   9    version 2.1 of the License, or (at your option) any later version.
  10
  11    The GNU C Library 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 GNU
  14    Lesser General Public License for more details.
  15
  16    You should have received a copy of the GNU Lesser General Public
  17    License along with the GNU C Library; if not, write to the Free
  18    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  19    02111-1307 USA.  */
  20
  21 #define HAVE_CONFIG_H  /* needed for Wine */
  22
  23 #ifdef HAVE_CONFIG_H
  24 #include <config.h>
  25 #endif
  26
  27 #ifdef HAVE_GETOPT_LONG
  28 #define ELIDE_CODE
  29 #endif
  30
  31 #ifdef _LIBC
  32 # include <getopt.h>
  33 #else
  34 # include "getopt.h"
  35 #endif
  36
  37 #if !defined __STDC__ || !__STDC__
  38 /* This is a separate conditional since some stdc systems
  39    reject `defined (const)'.  */
  40 #ifndef const
  41 #define const
  42 #endif
  43 #endif
  44
  45 #include <stdio.h>
  46
  47 /* Comment out all this code if we are using the GNU C Library, and are not
  48    actually compiling the library itself.  This code is part of the GNU C
  49    Library, but also included in many other GNU distributions.  Compiling
  50    and linking in this code is a waste when using the GNU C library
  51    (especially if it is a shared library).  Rather than having every GNU
  52    program understand `configure --with-gnu-libc' and omit the object files,
  53    it is simpler to just do this in the source for each such file.  */
  54
  55 #define GETOPT_INTERFACE_VERSION 2
  56 #if !defined _LIBC && defined __GLIBC__ && __GLIBC__ >= 2
  57 #include <gnu-versions.h>
  58 #if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION
  59 #define ELIDE_CODE
  60 #endif
  61 #endif
  62
  63 #ifndef ELIDE_CODE
  64
  65
  66 /* This needs to come after some library #include
  67    to get __GNU_LIBRARY__ defined.  */
  68 #ifdef __GNU_LIBRARY__
  69 #include <stdlib.h>
  70 #endif
  71
  72 #ifndef NULL
  73 #define NULL 0
  74 #endif
  75
  76 int
  77 getopt_long (argc, argv, options, long_options, opt_index)
  78      int argc;
  79      char *const *argv;
  80      const char *options;
  81      const struct option *long_options;
  82      int *opt_index;
  83 {
  84   return _getopt_internal (argc, argv, options, long_options, opt_index, 0);
  85 }
  86
  87 /* Like getopt_long, but '-' as well as '--' can indicate a long option.
  88    If an option that starts with '-' (not '--') doesn't match a long option,
  89    but does match a short option, it is parsed as a short option
  90    instead.  */
  91
  92 int
  93 getopt_long_only (argc, argv, options, long_options, opt_index)
  94      int argc;
  95      char *const *argv;
  96      const char *options;
  97      const struct option *long_options;
  98      int *opt_index;
  99 {
 100   return _getopt_internal (argc, argv, options, long_options, opt_index, 1);
 101 }
 102
 103 # ifdef _LIBC
 104 libc_hidden_def (getopt_long)
 105 libc_hidden_def (getopt_long_only)
 106 # endif
 107
 108 #endif  /* Not ELIDE_CODE.  */
 109
 110 #ifdef TEST
 111
 112 #include <stdio.h>
 113
 114 int
 115 main (argc, argv)
 116      int argc;
 117      char **argv;
 118 {
 119   int c;
 120   int digit_optind = 0;
 121
 122   while (1)
 123     {
 124       int this_option_optind = optind ? optind : 1;
 125       int option_index = 0;
 126       static struct option long_options[] =
 127       {
 128         {"add", 1, 0, 0},
 129         {"append", 0, 0, 0},
 130         {"delete", 1, 0, 0},
 131         {"verbose", 0, 0, 0},
 132         {"create", 0, 0, 0},
 133         {"file", 1, 0, 0},
 134         {0, 0, 0, 0}
 135       };
 136
 137       c = getopt_long (argc, argv, "abc:d:0123456789",
 138                        long_options, &option_index);
 139       if (c == -1)
 140         break;
 141
 142       switch (c)
 143         {
 144         case 0:
 145           printf ("option %s", long_options[option_index].name);
 146           if (optarg)
 147             printf (" with arg %s", optarg);
 148           printf ("\n");
 149           break;
 150
 151         case '0':
 152         case '1':
 153         case '2':
 154         case '3':
 155         case '4':
 156         case '5':
 157         case '6':
 158         case '7':
 159         case '8':
 160         case '9':
 161           if (digit_optind != 0 && digit_optind != this_option_optind)
 162             printf ("digits occur in two different argv-elements.\n");
 163           digit_optind = this_option_optind;
 164           printf ("option %c\n", c);
 165           break;
 166
 167         case 'a':
 168           printf ("option a\n");
 169           break;
 170
 171         case 'b':
 172           printf ("option b\n");
 173           break;
 174
 175         case 'c':
 176           printf ("option c with value `%s'\n", optarg);
 177           break;
 178
 179         case 'd':
 180           printf ("option d with value `%s'\n", optarg);
 181           break;
 182
 183         case '?':
 184           break;
 185
 186         default:
 187           printf ("?? getopt returned character code 0%o ??\n", c);
 188         }
 189     }
 190
 191   if (optind < argc)
 192     {
 193       printf ("non-option ARGV-elements: ");
 194       while (optind < argc)
 195         printf ("%s ", argv[optind++]);
 196       printf ("\n");
 197     }
 198
 199   exit (0);
 200 }
 201
 202 #endif /* TEST */