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 The GNU C Library is free software; you can redistribute it and/or 7 modify it under the terms of the GNU Lesser General Public 8 License as published by the Free Software Foundation; either 9 version 2.1 of the License, or (at your option) any later version. 10 11 The GNU C Library 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 GNU 14 Lesser General Public License for more details. 15 16 You should have received a copy of the GNU Lesser General Public 17 License along with the GNU C Library; if not, write to the Free 18 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 19 02111-1307 USA. */ 20 21 #ifdef HAVE_CONFIG_H 23 #include <config.h> 24 #endif 25 26 #include "getopt.h" 27 28 #if !defined __STDC__ || !__STDC__ 29 /* This is a separate conditional since some stdc systems 30 reject `defined (const)'. */ 31 #ifndef const 32 #define const 33 #endif 34 #endif 35 36 #include <stdio.h> 37 38 /* Comment out all this code if we are using the GNU C Library, and are not 39 actually compiling the library itself. This code is part of the GNU C 40 Library, but also included in many other GNU distributions. Compiling 41 and linking in this code is a waste when using the GNU C library 42 (especially if it is a shared library). Rather than having every GNU 43 program understand `configure --with-gnu-libc' and omit the object files, 44 it is simpler to just do this in the source for each such file. */ 45 46 #define GETOPT_INTERFACE_VERSION 2 47 #if !defined _LIBC && defined __GLIBC__ && __GLIBC__ >= 2 48 #include <gnu-versions.h> 49 #if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION 50 #define ELIDE_CODE 51 #endif 52 #endif 53 54 #ifndef ELIDE_CODE 55 56 57 /* This needs to come after some library #include 58 to get __GNU_LIBRARY__ defined. */ 59 #ifdef __GNU_LIBRARY__ 60 #include <stdlib.h> 61 #endif 62 63 #ifndef NULL 64 #define NULL 0 65 #endif 66 67 int 68 getopt_long (argc, argv, options, long_options, opt_index) 69 int argc; 70 char *const *argv; 71 const char *options; 72 const struct option *long_options; 73 int *opt_index; 74 { 75 return _getopt_internal (argc, argv, options, long_options, opt_index, 0); 76 } 77 78 /* Like getopt_long, but '-' as well as '--' can indicate a long option. 79 If an option that starts with '-' (not '--') doesn't match a long option, 80 but does match a short option, it is parsed as a short option 81 instead. */ 82 83 int 84 getopt_long_only (argc, argv, options, long_options, opt_index) 85 int argc; 86 char *const *argv; 87 const char *options; 88 const struct option *long_options; 89 int *opt_index; 90 { 91 return _getopt_internal (argc, argv, options, long_options, opt_index, 1); 92 } 93 94 95 #endif /* Not ELIDE_CODE. */ 96 97 #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
