1 rizwank 1.1 /* getopt_long and getopt_long_only entry points for GNU getopt.
  2                Copyright (C) 1987,88,89,90,91,92,93,94,96,97 Free Software Foundation, Inc.
  3             
  4                This file is part of the GNU C Library.  Its master source is NOT part of
  5                the C library, however.  The master source lives in /gd/gnu/lib.
  6             
  7                The GNU C Library is free software; you can redistribute it and/or
  8                modify it under the terms of the GNU Library General Public License as
  9                published by the Free Software Foundation; either version 2 of the
 10                License, or (at your option) any later version.
 11             
 12                The GNU C Library is distributed in the hope that it will be useful,
 13                but WITHOUT ANY WARRANTY; without even the implied warranty of
 14                MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 15                Library General Public License for more details.
 16             
 17                You should have received a copy of the GNU Library General Public
 18                License along with the GNU C Library; see the file COPYING.LIB.  If not,
 19                write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 20                Boston, MA 02111-1307, USA.  */
 21             
 22 rizwank 1.1 #ifdef HAVE_CONFIG_H
 23             #include <config.h>
 24             #endif
 25             
 26             #include "getopt.h"
 27             
 28             #if !defined (__STDC__) || !__STDC__
 29             /* This is a separate conditional since some stdc systems
 30                reject `defined (const)'.  */
 31             #ifndef const
 32             #define const
 33             #endif
 34             #endif
 35             
 36             #include <stdio.h>
 37             
 38             /* Comment out all this code if we are using the GNU C Library, and are not
 39                actually compiling the library itself.  This code is part of the GNU C
 40                Library, but also included in many other GNU distributions.  Compiling
 41                and linking in this code is a waste when using the GNU C library
 42                (especially if it is a shared library).  Rather than having every GNU
 43 rizwank 1.1    program understand `configure --with-gnu-libc' and omit the object files,
 44                it is simpler to just do this in the source for each such file.  */
 45             
 46             #define GETOPT_INTERFACE_VERSION 2
 47             #if !defined (_LIBC) && defined (__GLIBC__) && __GLIBC__ >= 2
 48             #include <gnu-versions.h>
 49             #if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION
 50             #define ELIDE_CODE
 51             #endif
 52             #endif
 53             
 54             #ifndef ELIDE_CODE
 55             
 56             
 57             /* This needs to come after some library #include
 58                to get __GNU_LIBRARY__ defined.  */
 59             #ifdef __GNU_LIBRARY__
 60             #include <stdlib.h>
 61             #endif
 62             
 63             #ifndef	NULL
 64 rizwank 1.1 #define NULL 0
 65             #endif
 66             
 67             int
 68             getopt_long (argc, argv, options, long_options, opt_index)
 69                  int argc;
 70                  char *const *argv;
 71                  const char *options;
 72                  const struct option *long_options;
 73                  int *opt_index;
 74             {
 75               return _getopt_internal (argc, argv, options, long_options, opt_index, 0);
 76             }
 77             
 78             /* Like getopt_long, but '-' as well as '--' can indicate a long option.
 79                If an option that starts with '-' (not '--') doesn't match a long option,
 80                but does match a short option, it is parsed as a short option
 81                instead.  */
 82             
 83             int
 84             getopt_long_only (argc, argv, options, long_options, opt_index)
 85 rizwank 1.1      int argc;
 86                  char *const *argv;
 87                  const char *options;
 88                  const struct option *long_options;
 89                  int *opt_index;
 90             {
 91               return _getopt_internal (argc, argv, options, long_options, opt_index, 1);
 92             }
 93             
 94             
 95             #endif	/* Not ELIDE_CODE.  */
 96             
 97             #ifdef TEST
 98             
 99             #include <stdio.h>
100             
101             int
102             main (argc, argv)
103                  int argc;
104                  char **argv;
105             {
106 rizwank 1.1   int c;
107               int digit_optind = 0;
108             
109               while (1)
110                 {
111                   int this_option_optind = optind ? optind : 1;
112                   int option_index = 0;
113                   static struct option long_options[] =
114                   {
115             	{"add", 1, 0, 0},
116             	{"append", 0, 0, 0},
117             	{"delete", 1, 0, 0},
118             	{"verbose", 0, 0, 0},
119             	{"create", 0, 0, 0},
120             	{"file", 1, 0, 0},
121             	{0, 0, 0, 0}
122                   };
123             
124                   c = getopt_long (argc, argv, "abc:d:0123456789",
125             		       long_options, &option_index);
126                   if (c == -1)
127 rizwank 1.1 	break;
128             
129                   switch (c)
130             	{
131             	case 0:
132             	  printf ("option %s", long_options[option_index].name);
133             	  if (optarg)
134             	    printf (" with arg %s", optarg);
135             	  printf ("\n");
136             	  break;
137             
138             	case '0':
139             	case '1':
140             	case '2':
141             	case '3':
142             	case '4':
143             	case '5':
144             	case '6':
145             	case '7':
146             	case '8':
147             	case '9':
148 rizwank 1.1 	  if (digit_optind != 0 && digit_optind != this_option_optind)
149             	    printf ("digits occur in two different argv-elements.\n");
150             	  digit_optind = this_option_optind;
151             	  printf ("option %c\n", c);
152             	  break;
153             
154             	case 'a':
155             	  printf ("option a\n");
156             	  break;
157             
158             	case 'b':
159             	  printf ("option b\n");
160             	  break;
161             
162             	case 'c':
163             	  printf ("option c with value `%s'\n", optarg);
164             	  break;
165             
166             	case 'd':
167             	  printf ("option d with value `%s'\n", optarg);
168             	  break;
169 rizwank 1.1 
170             	case '?':
171             	  break;
172             
173             	default:
174             	  printf ("?? getopt returned character code 0%o ??\n", c);
175             	}
176                 }
177             
178               if (optind < argc)
179                 {
180                   printf ("non-option ARGV-elements: ");
181                   while (optind < argc)
182             	printf ("%s ", argv[optind++]);
183                   printf ("\n");
184                 }
185             
186               exit (0);
187             }
188             
189             #endif /* TEST */