1 /* $NetBSD: getopt1.c,v 1.1.1.1 2016/01/13 03:15:30 christos Exp $ */ 2 3 /* getopt_long and getopt_long_only entry points for GNU getopt. 4 Copyright (C) 1987,88,89,90,91,92,93,94,96,97,98 5 Free Software Foundation, Inc. 6 This file is part of the GNU C Library. 7 8 This program is free software; you can redistribute it and/or modify 9 it under the terms of the GNU General Public License as published by 10 the Free Software Foundation; either version 2, or (at your option) 11 any 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 Foundation, 20 Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ 21 22 #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 98 99 #include <stdio.h> 100 101 int 102 main (argc, argv) 103 int argc; 104 char **argv; 105 { 106 int c; 107 int digit_optind = 0; 108 109 while (1) 110 { 111 int this_option_optind = optind ? optind : 1; 112 int option_index = 0; 113 static struct option long_options[] = 114 { 115 {"add", 1, 0, 0}, 116 {"append", 0, 0, 0}, 117 {"delete", 1, 0, 0}, 118 {"verbose", 0, 0, 0}, 119 {"create", 0, 0, 0}, 120 {"file", 1, 0, 0}, 121 {0, 0, 0, 0} 122 }; 123 124 c = getopt_long (argc, argv, "abc:d:0123456789", 125 long_options, &option_index); 126 if (c == -1) 127 break; 128 129 switch (c) 130 { 131 case 0: 132 printf ("option %s", long_options[option_index].name); 133 if (optarg) 134 printf (" with arg %s", optarg); 135 printf ("\n"); 136 break; 137 138 case '0': 139 case '1': 140 case '2': 141 case '3': 142 case '4': 143 case '5': 144 case '6': 145 case '7': 146 case '8': 147 case '9': 148 if (digit_optind != 0 && digit_optind != this_option_optind) 149 printf ("digits occur in two different argv-elements.\n"); 150 digit_optind = this_option_optind; 151 printf ("option %c\n", c); 152 break; 153 154 case 'a': 155 printf ("option a\n"); 156 break; 157 158 case 'b': 159 printf ("option b\n"); 160 break; 161 162 case 'c': 163 printf ("option c with value `%s'\n", optarg); 164 break; 165 166 case 'd': 167 printf ("option d with value `%s'\n", optarg); 168 break; 169 170 case '?': 171 break; 172 173 default: 174 printf ("?? getopt returned character code 0%o ??\n", c); 175 } 176 } 177 178 if (optind < argc) 179 { 180 printf ("non-option ARGV-elements: "); 181 while (optind < argc) 182 printf ("%s ", argv[optind++]); 183 printf ("\n"); 184 } 185 186 exit (0); 187 } 188 189 #endif /* TEST */ 190