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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ 19 #include <sys/cdefs.h> 20 __RCSID("$NetBSD: getopt1.c,v 1.2 2016/05/17 14:00:09 christos Exp $"); 21 22 23 #ifdef HAVE_CONFIG_H 24 # include <config.h> 25 #endif 26 27 #ifdef _LIBC 28 # include <getopt.h> 29 #else 30 # include "getopt.h" 31 #endif 32 #include "getopt_int.h" 33 34 #include <stdio.h> 35 36 /* This needs to come after some library #include 37 to get __GNU_LIBRARY__ defined. */ 38 #ifdef __GNU_LIBRARY__ 39 #include <stdlib.h> 40 #endif 41 42 #ifndef NULL 43 #define NULL 0 44 #endif 45 46 int 47 getopt_long (int argc, char *__getopt_argv_const *argv, const char *options, 48 const struct option *long_options, int *opt_index) 49 { 50 return _getopt_internal (argc, (char **) argv, options, long_options, 51 opt_index, 0, 0); 52 } 53 54 int 55 _getopt_long_r (int argc, char **argv, const char *options, 56 const struct option *long_options, int *opt_index, 57 struct _getopt_data *d) 58 { 59 return _getopt_internal_r (argc, argv, options, long_options, opt_index, 60 0, 0, d); 61 } 62 63 /* Like getopt_long, but '-' as well as '--' can indicate a long option. 64 If an option that starts with '-' (not '--') doesn't match a long option, 65 but does match a short option, it is parsed as a short option 66 instead. */ 67 68 int 69 getopt_long_only (int argc, char *__getopt_argv_const *argv, 70 const char *options, 71 const struct option *long_options, int *opt_index) 72 { 73 return _getopt_internal (argc, (char **) argv, options, long_options, 74 opt_index, 1, 0); 75 } 76 77 int 78 _getopt_long_only_r (int argc, char **argv, const char *options, 79 const struct option *long_options, int *opt_index, 80 struct _getopt_data *d) 81 { 82 return _getopt_internal_r (argc, argv, options, long_options, opt_index, 83 1, 0, d); 84 } 85 86 87 #ifdef TEST 88 89 #include <stdio.h> 90 91 int 92 main (int argc, char **argv) 93 { 94 int c; 95 int digit_optind = 0; 96 97 while (1) 98 { 99 int this_option_optind = optind ? optind : 1; 100 int option_index = 0; 101 static struct option long_options[] = 102 { 103 {"add", 1, 0, 0}, 104 {"append", 0, 0, 0}, 105 {"delete", 1, 0, 0}, 106 {"verbose", 0, 0, 0}, 107 {"create", 0, 0, 0}, 108 {"file", 1, 0, 0}, 109 {0, 0, 0, 0} 110 }; 111 112 c = getopt_long (argc, argv, "abc:d:0123456789", 113 long_options, &option_index); 114 if (c == -1) 115 break; 116 117 switch (c) 118 { 119 case 0: 120 printf ("option %s", long_options[option_index].name); 121 if (optarg) 122 printf (" with arg %s", optarg); 123 printf ("\n"); 124 break; 125 126 case '0': 127 case '1': 128 case '2': 129 case '3': 130 case '4': 131 case '5': 132 case '6': 133 case '7': 134 case '8': 135 case '9': 136 if (digit_optind != 0 && digit_optind != this_option_optind) 137 printf ("digits occur in two different argv-elements.\n"); 138 digit_optind = this_option_optind; 139 printf ("option %c\n", c); 140 break; 141 142 case 'a': 143 printf ("option a\n"); 144 break; 145 146 case 'b': 147 printf ("option b\n"); 148 break; 149 150 case 'c': 151 printf ("option c with value `%s'\n", optarg); 152 break; 153 154 case 'd': 155 printf ("option d with value `%s'\n", optarg); 156 break; 157 158 case '?': 159 break; 160 161 default: 162 printf ("?? getopt returned character code 0%o ??\n", c); 163 } 164 } 165 166 if (optind < argc) 167 { 168 printf ("non-option ARGV-elements: "); 169 while (optind < argc) 170 printf ("%s ", argv[optind++]); 171 printf ("\n"); 172 } 173 174 exit (0); 175 } 176 177 #endif /* TEST */ 178