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