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 "getopt.h" 28 29 #if !defined __STDC__ || !__STDC__ 30 /* This is a separate conditional since some stdc systems 31 reject `defined (const)'. */ 32 #ifndef const 33 #define const 34 #endif 35 #endif 36 37 #include <stdio.h> 38 39 /* Comment out all this code if we are using the GNU C Library, and are not 40 actually compiling the library itself. This code is part of the GNU C 41 Library, but also included in many other GNU distributions. Compiling 42 and linking in this code is a waste when using the GNU C library 43 (especially if it is a shared library). Rather than having every GNU 44 program understand `configure --with-gnu-libc' and omit the object files, 45 it is simpler to just do this in the source for each such file. */ 46 47 #define GETOPT_INTERFACE_VERSION 2 48 #if !defined _LIBC && defined __GLIBC__ && __GLIBC__ >= 2 49 #include <gnu-versions.h> 50 #if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION 51 #define ELIDE_CODE 52 #endif 53 #endif 54 55 #ifndef ELIDE_CODE 56 57 58 /* This needs to come after some library #include 59 to get __GNU_LIBRARY__ defined. */ 60 #ifdef __GNU_LIBRARY__ 61 #include <stdlib.h> 62 #endif 63 64 #ifndef NULL 65 #define NULL 0 66 #endif 67 68 int 69 getopt_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 84 int 85 getopt_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> 101 102 int 103 main (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