428
+ − 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 Free Software Foundation, Inc.
+ − 3
+ − 4 NOTE: The canonical source of this file is maintained with the GNU C Library.
+ − 5 Bugs can be reported to bug-glibc@prep.ai.mit.edu.
+ − 6
+ − 7 This program is free software; you can redistribute it and/or modify it
+ − 8 under the terms of the GNU General Public License as published by the
+ − 9 Free Software Foundation; either version 2, or (at your option) any
+ − 10 later version.
+ − 11
+ − 12 This program is distributed in the hope that it will be useful,
+ − 13 but WITHOUT ANY WARRANTY; without even the implied warranty of
+ − 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ − 15 GNU General Public License for more details.
+ − 16
+ − 17 You should have received a copy of the GNU General Public License
+ − 18 along with this program; if not, write to the Free Software
+ − 19 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
+ − 20 USA. */
+ − 21
+ − 22 #ifdef HAVE_CONFIG_H
438
+ − 23 #include <config.h>
428
+ − 24 #endif
+ − 25
+ − 26 #include "getopt.h"
+ − 27
+ − 28 #include <stdio.h>
+ − 29
+ − 30 /* Comment out all this code if we are using the GNU C Library, and are not
+ − 31 actually compiling the library itself. This code is part of the GNU C
+ − 32 Library, but also included in many other GNU distributions. Compiling
+ − 33 and linking in this code is a waste when using the GNU C library
+ − 34 (especially if it is a shared library). Rather than having every GNU
+ − 35 program understand `configure --with-gnu-libc' and omit the object files,
+ − 36 it is simpler to just do this in the source for each such file. */
+ − 37
+ − 38 #define GETOPT_INTERFACE_VERSION 2
+ − 39 #if !defined (_LIBC) && defined (__GLIBC__) && __GLIBC__ >= 2
+ − 40 #include <gnu-versions.h>
+ − 41 #if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION
+ − 42 #define ELIDE_CODE
+ − 43 #endif
+ − 44 #endif
+ − 45
+ − 46 #ifndef ELIDE_CODE
+ − 47
+ − 48
+ − 49 /* This needs to come after some library #include
+ − 50 to get __GNU_LIBRARY__ defined. */
+ − 51 #ifdef __GNU_LIBRARY__
+ − 52 #include <stdlib.h>
+ − 53 #endif
+ − 54
+ − 55 #ifndef NULL
+ − 56 #define NULL 0
+ − 57 #endif
+ − 58
+ − 59 int
+ − 60 getopt_long (int argc, char *const *argv, const char *options,
+ − 61 const struct option *long_options, int *opt_index)
+ − 62 {
+ − 63 return _getopt_internal (argc, argv, options, long_options, opt_index, 0);
+ − 64 }
+ − 65
+ − 66 /* Like getopt_long, but '-' as well as '--' can indicate a long option.
+ − 67 If an option that starts with '-' (not '--') doesn't match a long option,
+ − 68 but does match a short option, it is parsed as a short option
+ − 69 instead. */
+ − 70
+ − 71 int
+ − 72 getopt_long_only (int argc, char *const *argv, const char *options,
+ − 73 const struct option *long_options, int *opt_index)
+ − 74 {
+ − 75 return _getopt_internal (argc, argv, options, long_options, opt_index, 1);
+ − 76 }
+ − 77
+ − 78
+ − 79 #endif /* Not ELIDE_CODE. */
+ − 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 */