111730Sweijun/* getopt_long and getopt_long_only entry points for GNU getopt. 211730Sweijun Copyright (C) 1987,88,89,90,91,92,93,94,96,97,98 311730Sweijun Free Software Foundation, Inc. 411730Sweijun 511730Sweijun NOTE: The canonical source of this file is maintained with the GNU C Library. 611730Sweijun Bugs can be reported to bug-glibc@gnu.org. 711730Sweijun 811730Sweijun This program is free software; you can redistribute it and/or modify it 911730Sweijun under the terms of the GNU General Public License as published by the 1011730Sweijun Free Software Foundation; either version 2, or (at your option) any 1111730Sweijun later version. 1211730Sweijun 1311730Sweijun This program is distributed in the hope that it will be useful, 1411730Sweijun but WITHOUT ANY WARRANTY; without even the implied warranty of 1511730Sweijun MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 1611730Sweijun GNU General Public License for more details. 1711730Sweijun 1811730Sweijun You should have received a copy of the GNU General Public License 1911730Sweijun along with this program; if not, write to the Free Software 2011730Sweijun Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 2111730Sweijun USA. */ 2211730Sweijun 2311730Sweijun#ifdef HAVE_CONFIG_H 2411730Sweijun#include <config.h> 2511730Sweijun#endif 2611730Sweijun 2711730Sweijun#include "getopt.h" 2811730Sweijun 2911730Sweijun#if !defined __STDC__ || !__STDC__ 3011730Sweijun/* This is a separate conditional since some stdc systems 3111730Sweijun reject `defined (const)'. */ 3211730Sweijun#ifndef const 3311730Sweijun#define const 3411730Sweijun#endif 3511730Sweijun#endif 3611730Sweijun 3711730Sweijun#include <stdio.h> 3811730Sweijun 3911730Sweijun/* Comment out all this code if we are using the GNU C Library, and are not 4011730Sweijun actually compiling the library itself. This code is part of the GNU C 4111730Sweijun Library, but also included in many other GNU distributions. Compiling 4211730Sweijun and linking in this code is a waste when using the GNU C library 4311730Sweijun (especially if it is a shared library). Rather than having every GNU 4411730Sweijun program understand `configure --with-gnu-libc' and omit the object files, 4511730Sweijun it is simpler to just do this in the source for each such file. */ 4611730Sweijun 4711730Sweijun#define GETOPT_INTERFACE_VERSION 2 4811730Sweijun#if !defined _LIBC && defined __GLIBC__ && __GLIBC__ >= 2 4911730Sweijun#include <gnu-versions.h> 5011730Sweijun#if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION 5111730Sweijun#define ELIDE_CODE 5211730Sweijun#endif 5311730Sweijun#endif 5411730Sweijun 5511730Sweijun#ifndef ELIDE_CODE 5611730Sweijun 5711730Sweijun 5811730Sweijun/* This needs to come after some library #include 5911730Sweijun to get __GNU_LIBRARY__ defined. */ 6011730Sweijun#ifdef __GNU_LIBRARY__ 6111730Sweijun#include <stdlib.h> 6211730Sweijun#endif 6311730Sweijun 64#ifndef NULL 65#define NULL 0 66#endif 67 68int 69getopt_long (argc, argv, options, long_options, opt_index) 70 int argc; 71 char *const *argv; 72 const char *options; 73 const struct option *long_options; 74 int *opt_index; 75{ 76 return _getopt_internal (argc, argv, options, long_options, opt_index, 0); 77} 78 79/* Like getopt_long, but '-' as well as '--' can indicate a long option. 80 If an option that starts with '-' (not '--') doesn't match a long option, 81 but does match a short option, it is parsed as a short option 82 instead. */ 83 84int 85getopt_long_only (argc, argv, options, long_options, opt_index) 86 int argc; 87 char *const *argv; 88 const char *options; 89 const struct option *long_options; 90 int *opt_index; 91{ 92 return _getopt_internal (argc, argv, options, long_options, opt_index, 1); 93} 94 95 96#endif /* Not ELIDE_CODE. */ 97 98#ifdef TEST 99 100#include <stdio.h> 101 102int 103main (argc, argv) 104 int argc; 105 char **argv; 106{ 107 int c; 108 int digit_optind = 0; 109 110 while (1) 111 { 112 int this_option_optind = optind ? optind : 1; 113 int option_index = 0; 114 static struct option long_options[] = 115 { 116 {"add", 1, 0, 0}, 117 {"append", 0, 0, 0}, 118 {"delete", 1, 0, 0}, 119 {"verbose", 0, 0, 0}, 120 {"create", 0, 0, 0}, 121 {"file", 1, 0, 0}, 122 {0, 0, 0, 0} 123 }; 124 125 c = getopt_long (argc, argv, "abc:d:0123456789", 126 long_options, &option_index); 127 if (c == -1) 128 break; 129 130 switch (c) 131 { 132 case 0: 133 printf ("option %s", long_options[option_index].name); 134 if (optarg) 135 printf (" with arg %s", optarg); 136 printf ("\n"); 137 break; 138 139 case '0': 140 case '1': 141 case '2': 142 case '3': 143 case '4': 144 case '5': 145 case '6': 146 case '7': 147 case '8': 148 case '9': 149 if (digit_optind != 0 && digit_optind != this_option_optind) 150 printf ("digits occur in two different argv-elements.\n"); 151 digit_optind = this_option_optind; 152 printf ("option %c\n", c); 153 break; 154 155 case 'a': 156 printf ("option a\n"); 157 break; 158 159 case 'b': 160 printf ("option b\n"); 161 break; 162 163 case 'c': 164 printf ("option c with value `%s'\n", optarg); 165 break; 166 167 case 'd': 168 printf ("option d with value `%s'\n", optarg); 169 break; 170 171 case '?': 172 break; 173 174 default: 175 printf ("?? getopt returned character code 0%o ??\n", c); 176 } 177 } 178 179 if (optind < argc) 180 { 181 printf ("non-option ARGV-elements: "); 182 while (optind < argc) 183 printf ("%s ", argv[optind++]); 184 printf ("\n"); 185 } 186 187 exit (0); 188} 189 190#endif /* TEST */ 191