1 /* getopt_long and getopt_long_only entry points for GNU getopt. 2 Copyright (C) 1987,88,89,90,91,92,93,94,96,97,98,2004 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 along 17 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 #ifdef _LIBC 25 # include <getopt.h> 26 #else 27 # include "getopt.h" 28 #endif 29 #include "getopt_int.h" 30 31 #include <stdio.h> 32 33 /* This needs to come after some library #include 34 to get __GNU_LIBRARY__ defined. */ 35 #ifdef __GNU_LIBRARY__ 36 #include <stdlib.h> 37 #endif 38 39 #ifndef NULL 40 #define NULL 0 41 #endif 42 43 int 44 getopt_long (int argc, char *const *argv, const char *options, 45 const struct option *long_options, int *opt_index) 46 { 47 return _getopt_internal (argc, argv, options, long_options, opt_index, 0); 48 } 49 50 int 51 _getopt_long_r (int argc, char *const *argv, const char *options, 52 const struct option *long_options, int *opt_index, 53 struct _getopt_data *d) 54 { 55 return _getopt_internal_r (argc, argv, options, long_options, opt_index, 56 0, d); 57 } 58 59 /* Like getopt_long, but '-' as well as '--' can indicate a long option. 60 If an option that starts with '-' (not '--') doesn't match a long option, 61 but does match a short option, it is parsed as a short option 62 instead. */ 63 64 int 65 getopt_long_only (int argc, char *const *argv, const char *options, 66 const struct option *long_options, int *opt_index) 67 { 68 return _getopt_internal (argc, argv, options, long_options, opt_index, 1); 69 } 70 71 int 72 _getopt_long_only_r (int argc, char *const *argv, const char *options, 73 const struct option *long_options, int *opt_index, 74 struct _getopt_data *d) 75 { 76 return _getopt_internal_r (argc, argv, options, long_options, opt_index, 77 1, d); 78 } 79 80 81 #ifdef TEST 82 83 #include <stdio.h> 84 85 int 86 main (int argc, char **argv) 87 { 88 int c; 89 int digit_optind = 0; 90 91 while (1) 92 { 93 int this_option_optind = optind ? optind : 1; 94 int option_index = 0; 95 static struct option long_options[] = 96 { 97 {"add", 1, 0, 0}, 98 {"append", 0, 0, 0}, 99 {"delete", 1, 0, 0}, 100 {"verbose", 0, 0, 0}, 101 {"create", 0, 0, 0}, 102 {"file", 1, 0, 0}, 103 {0, 0, 0, 0} 104 }; 105 106 c = getopt_long (argc, argv, "abc:d:0123456789", 107 long_options, &option_index); 108 if (c == -1) 109 break; 110 111 switch (c) 112 { 113 case 0: 114 printf ("option %s", long_options[option_index].name); 115 if (optarg) 116 printf (" with arg %s", optarg); 117 printf ("\n"); 118 break; 119 120 case '0': 121 case '1': 122 case '2': 123 case '3': 124 case '4': 125 case '5': 126 case '6': 127 case '7': 128 case '8': 129 case '9': 130 if (digit_optind != 0 && digit_optind != this_option_optind) 131 printf ("digits occur in two different argv-elements.\n"); 132 digit_optind = this_option_optind; 133 printf ("option %c\n", c); 134 break; 135 136 case 'a': 137 printf ("option a\n"); 138 break; 139 140 case 'b': 141 printf ("option b\n"); 142 break; 143 144 case 'c': 145 printf ("option c with value `%s'\n", optarg); 146 break; 147 148 case 'd': 149 printf ("option d with value `%s'\n", optarg); 150 break; 151 152 case '?': 153 break; 154 155 default: 156 printf ("?? getopt returned character code 0%o ??\n", c); 157 } 158 } 159 160 if (optind < argc) 161 { 162 printf ("non-option ARGV-elements: "); 163 while (optind < argc) 164 printf ("%s ", argv[optind++]); 165 printf ("\n"); 166 } 167 168 exit (0); 169 } 170 171 #endif /* TEST */ 172