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