release/src/router/pptpd/getopt1.c

   1 /*
   2  * getopt1.c
   3  *
   4  * Ripped from GLIBC - original copyright follows
   5  *
   6  * NOTE: Changed to make dependencies work better:
   7  *        * <config.h> changed to "config.h"
   8  *
   9  * $Id: getopt1.c,v 1.1.1.1 2002/06/21 08:51:58 fenix_nl Exp $
  10  */
  11
  12 /* getopt_long and getopt_long_only entry points for GNU getopt.
  13    Copyright (C) 1987,88,89,90,91,92,93,94,96,97,98
  14      Free Software Foundation, Inc.
  15    This file is part of the GNU C Library.
  16
  17    The GNU C Library is free software; you can redistribute it and/or
  18    modify it under the terms of the GNU Library General Public License as
  19    published by the Free Software Foundation; either version 2 of the
  20    License, or (at your option) any later version.
  21
  22    The GNU C Library is distributed in the hope that it will be useful,
  23    but WITHOUT ANY WARRANTY; without even the implied warranty of
  24    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  25    Library General Public License for more details.
  26
  27    You should have received a copy of the GNU Library General Public
  28    License along with the GNU C Library; see the file COPYING.LIB.  If not,
  29    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  30    Boston, MA 02111-1307, USA.  */
  31 \f
  32 #ifdef HAVE_CONFIG_H
  33 #include "config.h"
  34 #endif
  35
  36 #include "our_getopt.h"
  37
  38 #if !defined __STDC__ || !__STDC__
  39 /* This is a separate conditional since some stdc systems
  40    reject `defined (const)'.  */
  41 #ifndef const
  42 #define const
  43 #endif
  44 #endif
  45
  46 #include <stdio.h>
  47
  48 /* Comment out all this code if we are using the GNU C Library, and are not
  49    actually compiling the library itself.  This code is part of the GNU C
  50    Library, but also included in many other GNU distributions.  Compiling
  51    and linking in this code is a waste when using the GNU C library
  52    (especially if it is a shared library).  Rather than having every GNU
  53    program understand `configure --with-gnu-libc' and omit the object files,
  54    it is simpler to just do this in the source for each such file.  */
  55
  56 #define GETOPT_INTERFACE_VERSION 2
  57 #if !defined _LIBC && defined __GLIBC__ && __GLIBC__ >= 2
  58 #include <gnu-versions.h>
  59 #if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION
  60 #define ELIDE_CODE
  61 #endif
  62 #endif
  63
  64 #ifndef ELIDE_CODE
  65
  66
  67 /* This needs to come after some library #include
  68    to get __GNU_LIBRARY__ defined.  */
  69 #ifdef __GNU_LIBRARY__
  70 #include <stdlib.h>
  71 #endif
  72
  73 #ifndef NULL
  74 #define NULL 0
  75 #endif
  76
  77 int
  78 getopt_long (argc, argv, options, long_options, opt_index)
  79      int argc;
  80      char *const *argv;
  81      const char *options;
  82      const struct option *long_options;
  83      int *opt_index;
  84 {
  85   return _getopt_internal (argc, argv, options, long_options, opt_index, 0);
  86 }
  87
  88 /* Like getopt_long, but '-' as well as '--' can indicate a long option.
  89    If an option that starts with '-' (not '--') doesn't match a long option,
  90    but does match a short option, it is parsed as a short option
  91    instead.  */
  92
  93 int
  94 getopt_long_only (argc, argv, options, long_options, opt_index)
  95      int argc;
  96      char *const *argv;
  97      const char *options;
  98      const struct option *long_options;
  99      int *opt_index;
 100 {
 101   return _getopt_internal (argc, argv, options, long_options, opt_index, 1);
 102 }
 103
 104
 105 #endif  /* Not ELIDE_CODE.  */
 106 \f
 107 #ifdef TEST
 108
 109 #include <stdio.h>
 110
 111 int
 112 main (argc, argv)
 113      int argc;
 114      char **argv;
 115 {
 116   int c;
 117   int digit_optind = 0;
 118
 119   while (1)
 120     {
 121       int this_option_optind = optind ? optind : 1;
 122       int option_index = 0;
 123       static struct option long_options[] =
 124       {
 125         {"add", 1, 0, 0},
 126         {"append", 0, 0, 0},
 127         {"delete", 1, 0, 0},
 128         {"verbose", 0, 0, 0},
 129         {"create", 0, 0, 0},
 130         {"file", 1, 0, 0},
 131         {0, 0, 0, 0}
 132       };
 133
 134       c = getopt_long (argc, argv, "abc:d:0123456789",
 135                        long_options, &option_index);
 136       if (c == -1)
 137         break;
 138
 139       switch (c)
 140         {
 141         case 0:
 142           printf ("option %s", long_options[option_index].name);
 143           if (optarg)
 144             printf (" with arg %s", optarg);
 145           printf ("\n");
 146           break;
 147
 148         case '0':
 149         case '1':
 150         case '2':
 151         case '3':
 152         case '4':
 153         case '5':
 154         case '6':
 155         case '7':
 156         case '8':
 157         case '9':
 158           if (digit_optind != 0 && digit_optind != this_option_optind)
 159             printf ("digits occur in two different argv-elements.\n");
 160           digit_optind = this_option_optind;
 161           printf ("option %c\n", c);
 162           break;
 163
 164         case 'a':
 165           printf ("option a\n");
 166           break;
 167
 168         case 'b':
 169           printf ("option b\n");
 170           break;
 171
 172         case 'c':
 173           printf ("option c with value `%s'\n", optarg);
 174           break;
 175
 176         case 'd':
 177           printf ("option d with value `%s'\n", optarg);
 178           break;
 179
 180         case '?':
 181           break;
 182
 183         default:
 184           printf ("?? getopt returned character code 0%o ??\n", c);
 185         }
 186     }
 187
 188   if (optind < argc)
 189     {
 190       printf ("non-option ARGV-elements: ");
 191       while (optind < argc)
 192         printf ("%s ", argv[optind++]);
 193       printf ("\n");
 194     }
 195
 196   exit (0);
 197 }
 198
 199 #endif /* TEST */