1/* getopt_long and getopt_long_only entry points for GNU getopt. 2 Copyright (C) 1987, 88, 89, 90, 91, 92, 1993 3 Free Software Foundation, Inc. 4 5 This program is free software; you can redistribute it and/or modify it 6 under the terms of the GNU General Public License as published by the 7 Free Software Foundation; either version 2, or (at your option) any 8 later version. 9 10 This program is distributed in the hope that it will be useful, 11 but WITHOUT ANY WARRANTY; without even the implied warranty of 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 GNU General Public License for more details. 14 15 You should have received a copy of the GNU General Public License 16 along with this program; if not, write to the Free Software 17 Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ 18 19#ifdef HAVE_CONFIG_H 20#include <config.h> 21#endif 22 23#include "getopt.h" 24 25#if !__STDC__ 26/* This is a separate conditional since some stdc systems 27 reject `defined (const)'. */ 28#ifndef const 29#define const 30#endif 31#endif 32 33#include <stdio.h> 34 35/* Comment out all this code if we are using the GNU C Library, and are not 36 actually compiling the library itself. This code is part of the GNU C 37 Library, but also included in many other GNU distributions. Compiling 38 and linking in this code is a waste when using the GNU C library 39 (especially if it is a shared library). Rather than having every GNU 40 program understand `configure --with-gnu-libc' and omit the object files, 41 it is simpler to just do this in the source for each such file. */ 42 43#if defined (_LIBC) || !defined (__GNU_LIBRARY__) 44 45 46/* This needs to come after some library #include 47 to get __GNU_LIBRARY__ defined. */ 48#ifdef __GNU_LIBRARY__ 49#include <stdlib.h> 50#else 51char *getenv (); 52#endif 53 54#ifndef NULL 55#define NULL 0 56#endif 57 58int 59getopt_long (argc, argv, options, long_options, opt_index) 60 int argc; 61 char *const *argv; 62 const char *options; 63 const struct option *long_options; 64 int *opt_index; 65{ 66 return _getopt_internal (argc, argv, options, long_options, opt_index, 0); 67} 68 69/* Like getopt_long, but '-' as well as '--' can indicate a long option. 70 If an option that starts with '-' (not '--') doesn't match a long option, 71 but does match a short option, it is parsed as a short option 72 instead. */ 73 74int 75getopt_long_only (argc, argv, options, long_options, opt_index) 76 int argc; 77 char *const *argv; 78 const char *options; 79 const struct option *long_options; 80 int *opt_index; 81{ 82 return _getopt_internal (argc, argv, options, long_options, opt_index, 1); 83} 84 85 86#endif /* _LIBC or not __GNU_LIBRARY__. */ 87 88#ifdef TEST 89 90#include <stdio.h> 91 92int 93main (argc, argv) 94 int argc; 95 char **argv; 96{ 97 int c; 98 int digit_optind = 0; 99 100 while (1) 101 { 102 int this_option_optind = optind ? optind : 1; 103 int option_index = 0; 104 static struct option long_options[] = 105 { 106 {"add", 1, 0, 0}, 107 {"append", 0, 0, 0}, 108 {"delete", 1, 0, 0}, 109 {"verbose", 0, 0, 0}, 110 {"create", 0, 0, 0}, 111 {"file", 1, 0, 0}, 112 {0, 0, 0, 0} 113 }; 114 115 c = getopt_long (argc, argv, "abc:d:0123456789", 116 long_options, &option_index); 117 if (c == EOF) 118 break; 119 120 switch (c) 121 { 122 case 0: 123 printf ("option %s", long_options[option_index].name); 124 if (optarg) 125 printf (" with arg %s", optarg); 126 printf ("\n"); 127 break; 128 129 case '0': 130 case '1': 131 case '2': 132 case '3': 133 case '4': 134 case '5': 135 case '6': 136 case '7': 137 case '8': 138 case '9': 139 if (digit_optind != 0 && digit_optind != this_option_optind) 140 printf ("digits occur in two different argv-elements.\n"); 141 digit_optind = this_option_optind; 142 printf ("option %c\n", c); 143 break; 144 145 case 'a': 146 printf ("option a\n"); 147 break; 148 149 case 'b': 150 printf ("option b\n"); 151 break; 152 153 case 'c': 154 printf ("option c with value `%s'\n", optarg); 155 break; 156 157 case 'd': 158 printf ("option d with value `%s'\n", optarg); 159 break; 160 161 case '?': 162 break; 163 164 default: 165 printf ("?? getopt returned character code 0%o ??\n", c); 166 } 167 } 168 169 if (optind < argc) 170 { 171 printf ("non-option ARGV-elements: "); 172 while (optind < argc) 173 printf ("%s ", argv[optind++]); 174 printf ("\n"); 175 } 176 177 exit (0); 178} 179 180#endif /* TEST */ 181