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 (at) 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 25 #include <config.h> 26 #endif 27 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 69 int 70 getopt_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 85 int 86 getopt_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 101 102 #include <stdio.h> 103 104 int 105 main (argc, argv) 106 int argc; 107 char **argv; 108 { 109 int c; 110 int digit_optind = 0; 111 112 while (1) 113 { 114 int this_option_optind = optind ? optind : 1; 115 int option_index = 0; 116 static struct option long_options[] = 117 { 118 {"add", 1, 0, 0}, 119 {"append", 0, 0, 0}, 120 {"delete", 1, 0, 0}, 121 {"verbose", 0, 0, 0}, 122 {"create", 0, 0, 0}, 123 {"file", 1, 0, 0}, 124 {0, 0, 0, 0} 125 }; 126 127 c = getopt_long (argc, argv, "abc:d:0123456789", 128 long_options, &option_index); 129 if (c == -1) 130 break; 131 132 switch (c) 133 { 134 case 0: 135 printf ("option %s", long_options[option_index].name); 136 if (optarg) 137 printf (" with arg %s", optarg); 138 printf ("\n"); 139 break; 140 141 case '0': 142 case '1': 143 case '2': 144 case '3': 145 case '4': 146 case '5': 147 case '6': 148 case '7': 149 case '8': 150 case '9': 151 if (digit_optind != 0 && digit_optind != this_option_optind) 152 printf ("digits occur in two different argv-elements.\n"); 153 digit_optind = this_option_optind; 154 printf ("option %c\n", c); 155 break; 156 157 case 'a': 158 printf ("option a\n"); 159 break; 160 161 case 'b': 162 printf ("option b\n"); 163 break; 164 165 case 'c': 166 printf ("option c with value `%s'\n", optarg); 167 break; 168 169 case 'd': 170 printf ("option d with value `%s'\n", optarg); 171 break; 172 173 case '?': 174 break; 175 176 default: 177 printf ("?? getopt returned character code 0%o ??\n", c); 178 } 179 } 180 181 if (optind < argc) 182 { 183 printf ("non-option ARGV-elements: "); 184 while (optind < argc) 185 printf ("%s ", argv[optind++]); 186 printf ("\n"); 187 } 188 189 exit (0); 190 } 191 192 #endif /* TEST */ 193
