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., 51 Franklin St, Fifth Floor, Boston,
  19    MA 02110-1301, 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_ONLY
  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 (int argc, char * const *argv, const char *options, const struct option *long_options, int *opt_index)
  78 {
  79   return _getopt_internal (argc, argv, options, long_options, opt_index, 0);
  80 }
  81
  82 /* Like getopt_long, but '-' as well as '--' can indicate a long option.
  83    If an option that starts with '-' (not '--') doesn't match a long option,
  84    but does match a short option, it is parsed as a short option
  85    instead.  */
  86
  87 int
  88 getopt_long_only (int argc, char * const *argv, const char *options, const struct option *long_options, int *opt_index)
  89 {
  90   return _getopt_internal (argc, argv, options, long_options, opt_index, 1);
  91 }
  92
  93 # ifdef _LIBC
  94 libc_hidden_def (getopt_long)
  95 libc_hidden_def (getopt_long_only)
  96 # endif
  97
  98 #endif  /* Not ELIDE_CODE.  */
  99
 100 #ifdef TEST
 101
 102 #include <stdio.h>
 103
 104 int
 105 main (argc, argv)
 106      int argc;
 107      char **argv;
 108 {
 109   int c;
 110   int digit_optind = 0;
 111
 112   while (1)
 113     {
 114       int this_option_optind = optind ? optind : 1;
 115       int option_index = 0;
 116       static struct option long_options[] =
 117       {
 118         {"add", 1, 0, 0},
 119         {"append", 0, 0, 0},
 120         {"delete", 1, 0, 0},
 121         {"verbose", 0, 0, 0},
 122         {"create", 0, 0, 0},
 123         {"file", 1, 0, 0},
 124         {0, 0, 0, 0}
 125       };
 126
 127       c = getopt_long (argc, argv, "abc:d:0123456789",
 128                        long_options, &option_index);
 129       if (c == -1)
 130         break;
 131
 132       switch (c)
 133         {
 134         case 0:
 135           printf ("option %s", long_options[option_index].name);
 136           if (optarg)
 137             printf (" with arg %s", optarg);
 138           printf ("\n");
 139           break;
 140
 141         case '0':
 142         case '1':
 143         case '2':
 144         case '3':
 145         case '4':
 146         case '5':
 147         case '6':
 148         case '7':
 149         case '8':
 150         case '9':
 151           if (digit_optind != 0 && digit_optind != this_option_optind)
 152             printf ("digits occur in two different argv-elements.\n");
 153           digit_optind = this_option_optind;
 154           printf ("option %c\n", c);
 155           break;
 156
 157         case 'a':
 158           printf ("option a\n");
 159           break;
 160
 161         case 'b':
 162           printf ("option b\n");
 163           break;
 164
 165         case 'c':
 166           printf ("option c with value `%s'\n", optarg);
 167           break;
 168
 169         case 'd':
 170           printf ("option d with value `%s'\n", optarg);
 171           break;
 172
 173         case '?':
 174           break;
 175
 176         default:
 177           printf ("?? getopt returned character code 0%o ??\n", c);
 178         }
 179     }
 180
 181   if (optind < argc)
 182     {
 183       printf ("non-option ARGV-elements: ");
 184       while (optind < argc)
 185         printf ("%s ", argv[optind++]);
 186       printf ("\n");
 187     }
 188
 189   exit (0);
 190 }
 191
 192 #endif /* TEST */