1 /* getopt_long and getopt_long_only entry points for GNU getopt. 2 Copyright (C) 1987,88,89,90,91,92,93,94,96,97,98,2004,2006,2009 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 3 of the License, or 9 (at your option) 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 17 along with this program. If not, see <http://www.gnu.org/licenses/>. */ 18 19 #ifdef _LIBC 21 # include <getopt.h> 22 #else 23 # include <config.h> 24 # include "getopt.h" 25 #endif 26 #include "getopt_int.h" 27 28 #include <stdio.h> 29 30 /* This needs to come after some library #include 31 to get __GNU_LIBRARY__ defined. */ 32 #ifdef __GNU_LIBRARY__ 33 #include <stdlib.h> 34 #endif 35 36 #ifndef NULL 37 #define NULL 0 38 #endif 39 40 int 41 getopt_long (int argc, char *__getopt_argv_const *argv, const char *options, 42 const struct option *long_options, int *opt_index) 43 { 44 return _getopt_internal (argc, (char **) argv, options, long_options, 45 opt_index, 0, 0); 46 } 47 48 int 49 _getopt_long_r (int argc, char **argv, const char *options, 50 const struct option *long_options, int *opt_index, 51 struct _getopt_data *d) 52 { 53 return _getopt_internal_r (argc, argv, options, long_options, opt_index, 54 0, 0, d); 55 } 56 57 /* Like getopt_long, but '-' as well as '--' can indicate a long option. 58 If an option that starts with '-' (not '--') doesn't match a long option, 59 but does match a short option, it is parsed as a short option 60 instead. */ 61 62 int 63 getopt_long_only (int argc, char *__getopt_argv_const *argv, 64 const char *options, 65 const struct option *long_options, int *opt_index) 66 { 67 return _getopt_internal (argc, (char **) argv, options, long_options, 68 opt_index, 1, 0); 69 } 70 71 int 72 _getopt_long_only_r (int argc, char **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, 0, d); 78 } 79 80 81 #ifdef TEST 83 84 #include <stdio.h> 85 86 int 87 main (int argc, char **argv) 88 { 89 int c; 90 int digit_optind = 0; 91 92 while (1) 93 { 94 int this_option_optind = optind ? optind : 1; 95 int option_index = 0; 96 static const struct option long_options[] = 97 { 98 {"add", 1, 0, 0}, 99 {"append", 0, 0, 0}, 100 {"delete", 1, 0, 0}, 101 {"verbose", 0, 0, 0}, 102 {"create", 0, 0, 0}, 103 {"file", 1, 0, 0}, 104 {0, 0, 0, 0} 105 }; 106 107 c = getopt_long (argc, argv, "abc:d:0123456789", 108 long_options, &option_index); 109 if (c == -1) 110 break; 111 112 switch (c) 113 { 114 case 0: 115 printf ("option %s", long_options[option_index].name); 116 if (optarg) 117 printf (" with arg %s", optarg); 118 printf ("\n"); 119 break; 120 121 case '0': 122 case '1': 123 case '2': 124 case '3': 125 case '4': 126 case '5': 127 case '6': 128 case '7': 129 case '8': 130 case '9': 131 if (digit_optind != 0 && digit_optind != this_option_optind) 132 printf ("digits occur in two different argv-elements.\n"); 133 digit_optind = this_option_optind; 134 printf ("option %c\n", c); 135 break; 136 137 case 'a': 138 printf ("option a\n"); 139 break; 140 141 case 'b': 142 printf ("option b\n"); 143 break; 144 145 case 'c': 146 printf ("option c with value `%s'\n", optarg); 147 break; 148 149 case 'd': 150 printf ("option d with value `%s'\n", optarg); 151 break; 152 153 case '?': 154 break; 155 156 default: 157 printf ("?? getopt returned character code 0%o ??\n", c); 158 } 159 } 160 161 if (optind < argc) 162 { 163 printf ("non-option ARGV-elements: "); 164 while (optind < argc) 165 printf ("%s ", argv[optind++]); 166 printf ("\n"); 167 } 168 169 exit (0); 170 } 171 172 #endif /* TEST */ 173
