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 This program is free software; you can redistribute it and/or modify 7 it under the terms of the GNU General Public License as published by 8 the Free Software Foundation; either version 2, or (at your option) 9 any later version. 10 11 This program 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 14 GNU General Public License for more details. 15 16 You should have received a copy of the GNU General Public License 17 along with this program; if not, write to the Free Software Foundation, 18 Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ 19 20#ifdef HAVE_CONFIG_H 21#include <config.h> 22#endif 23 24#include "getopt.h" 25 26#if !defined __STDC__ || !__STDC__ 27/* This is a separate conditional since some stdc systems 28 reject `defined (const)'. */ 29#ifndef const 30#define const 31#endif 32#endif 33 34#include <stdio.h> 35 36/* Comment out all this code if we are using the GNU C Library, and are not 37 actually compiling the library itself. This code is part of the GNU C 38 Library, but also included in many other GNU distributions. Compiling 39 and linking in this code is a waste when using the GNU C library 40 (especially if it is a shared library). Rather than having every GNU 41 program understand `configure --with-gnu-libc' and omit the object files, 42 it is simpler to just do this in the source for each such file. */ 43 44#define GETOPT_INTERFACE_VERSION 2 45#if !defined _LIBC && defined __GLIBC__ && __GLIBC__ >= 2 46#include <gnu-versions.h> 47#if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION 48#define ELIDE_CODE 49#endif 50#endif 51 52#ifndef ELIDE_CODE 53 54 55/* This needs to come after some library #include 56 to get __GNU_LIBRARY__ defined. */ 57#ifdef __GNU_LIBRARY__ 58#include <stdlib.h> 59#endif 60 61#ifndef NULL 62#define NULL 0 63#endif 64 65int 66getopt_long (argc, argv, options, long_options, opt_index) 67 int argc; 68 char *const *argv; 69 const char *options; 70 const struct option *long_options; 71 int *opt_index; 72{ 73 return _getopt_internal (argc, argv, options, long_options, opt_index, 0); 74} 75 76/* Like getopt_long, but '-' as well as '--' can indicate a long option. 77 If an option that starts with '-' (not '--') doesn't match a long option, 78 but does match a short option, it is parsed as a short option 79 instead. */ 80 81int 82getopt_long_only (argc, argv, options, long_options, opt_index) 83 int argc; 84 char *const *argv; 85 const char *options; 86 const struct option *long_options; 87 int *opt_index; 88{ 89 return _getopt_internal (argc, argv, options, long_options, opt_index, 1); 90} 91 92 93#endif /* Not ELIDE_CODE. */ 94 95#ifdef TEST 96 97#include <stdio.h> 98 99int 100main (argc, argv) 101 int argc; 102 char **argv; 103{ 104 int c; 105 int digit_optind = 0; 106 107 while (1) 108 { 109 int this_option_optind = optind ? optind : 1; 110 int option_index = 0; 111 static struct option long_options[] = 112 { 113 {"add", 1, 0, 0}, 114 {"append", 0, 0, 0}, 115 {"delete", 1, 0, 0}, 116 {"verbose", 0, 0, 0}, 117 {"create", 0, 0, 0}, 118 {"file", 1, 0, 0}, 119 {0, 0, 0, 0} 120 }; 121 122 c = getopt_long (argc, argv, "abc:d:0123456789", 123 long_options, &option_index); 124 if (c == -1) 125 break; 126 127 switch (c) 128 { 129 case 0: 130 printf ("option %s", long_options[option_index].name); 131 if (optarg) 132 printf (" with arg %s", optarg); 133 printf ("\n"); 134 break; 135 136 case '0': 137 case '1': 138 case '2': 139 case '3': 140 case '4': 141 case '5': 142 case '6': 143 case '7': 144 case '8': 145 case '9': 146 if (digit_optind != 0 && digit_optind != this_option_optind) 147 printf ("digits occur in two different argv-elements.\n"); 148 digit_optind = this_option_optind; 149 printf ("option %c\n", c); 150 break; 151 152 case 'a': 153 printf ("option a\n"); 154 break; 155 156 case 'b': 157 printf ("option b\n"); 158 break; 159 160 case 'c': 161 printf ("option c with value `%s'\n", optarg); 162 break; 163 164 case 'd': 165 printf ("option d with value `%s'\n", optarg); 166 break; 167 168 case '?': 169 break; 170 171 default: 172 printf ("?? getopt returned character code 0%o ??\n", c); 173 } 174 } 175 176 if (optind < argc) 177 { 178 printf ("non-option ARGV-elements: "); 179 while (optind < argc) 180 printf ("%s ", argv[optind++]); 181 printf ("\n"); 182 } 183 184 exit (0); 185} 186 187#endif /* TEST */ 188