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1 /* Copyright (c) 2000 Ben Woodard
2 * All rights reserved.
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public Licence
6 * as published by the Free Software Foundation; either version 2
7 * of the Licence, or (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRENTY; without even the implied warrenty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public Licence in the COPYING file for more
13 * details.
14 *
15 * You should have received a copy of the GNU Library General
16 * Public License along with the GNU C Library; see the file
17 * COPYING.LIB. If not, write to the Free Software Foundation,
18 * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
19 */
20
21 /* getopt_long and getopt_long_only entry points for GNU getopt.
22 Copyright (C) 1987,88,89,90,91,92,93,94,96,97 Free Software Foundation, Inc.
23
24 NOTE: The canonical source of this file is maintained with the GNU C Library.
25 Bugs can be reported to bug-glibc@gnu.org.
26
27 This program is free software; you can redistribute it and/or modify it
28 under the terms of the GNU General Public License as published by the
29 Free Software Foundation; either version 2, or (at your option) any
30 later version.
31
32 This program is distributed in the hope that it will be useful,
33 but WITHOUT ANY WARRANTY; without even the implied warranty of
34 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
35 GNU General Public License for more details.
36
37 You should have received a copy of the GNU General Public License
38 along with this program; if not, write to the Free Software
39 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
40 USA. */
41
42 #ifdef HAVE_CONFIG_H
43 #include <config.h>
44 #endif
45
46 #include "getopt.h"
47
48 #if !defined (__STDC__) || !__STDC__
49 /* This is a separate conditional since some stdc systems
50 reject `defined (const)'. */
51 #ifndef const
52 #define const
53 #endif
54 #endif
55
56 #include <stdio.h>
57
58 /* Comment out all this code if we are using the GNU C Library, and are not
59 actually compiling the library itself. This code is part of the GNU C
60 Library, but also included in many other GNU distributions. Compiling
61 and linking in this code is a waste when using the GNU C library
62 (especially if it is a shared library). Rather than having every GNU
63 program understand `configure --with-gnu-libc' and omit the object files,
64 it is simpler to just do this in the source for each such file. */
65
66 #define GETOPT_INTERFACE_VERSION 2
67 #if !defined (_LIBC) && defined (__GLIBC__) && __GLIBC__ >= 2
68 #include <gnu-versions.h>
69 #if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION
70 #define ELIDE_CODE
71 #endif
72 #endif
73
74 #ifndef ELIDE_CODE
75
76
77 /* This needs to come after some library #include
78 to get __GNU_LIBRARY__ defined. */
79 #ifdef __GNU_LIBRARY__
80 #include <stdlib.h>
81 #endif
82
83 #ifndef NULL
84 #define NULL 0
85 #endif
86
87 int
88 getopt_long (argc, argv, options, long_options, opt_index)
89 int argc;
90 char *const *argv;
91 const char *options;
92 const struct option *long_options;
93 int *opt_index;
94 {
95 return _getopt_internal (argc, argv, options, long_options, opt_index, 0);
96 }
97
98 /* Like getopt_long, but '-' as well as '--' can indicate a long option.
99 If an option that starts with '-' (not '--') doesn't match a long option,
100 but does match a short option, it is parsed as a short option
101 instead. */
102
103 int
104 getopt_long_only (argc, argv, options, long_options, opt_index)
105 int argc;
106 char *const *argv;
107 const char *options;
108 const struct option *long_options;
109 int *opt_index;
110 {
111 return _getopt_internal (argc, argv, options, long_options, opt_index, 1);
112 }
113
114
115 #endif /* Not ELIDE_CODE. */
116
117 #ifdef TEST
118
119 #include <stdio.h>
120
121 int
122 main (argc, argv)
123 int argc;
124 char **argv;
125 {
126 int c;
127 int digit_optind = 0;
128
129 while (1)
130 {
131 int this_option_optind = optind ? optind : 1;
132 int option_index = 0;
133 static struct option long_options[] =
134 {
135 {"add", 1, 0, 0},
136 {"append", 0, 0, 0},
137 {"delete", 1, 0, 0},
138 {"verbose", 0, 0, 0},
139 {"create", 0, 0, 0},
140 {"file", 1, 0, 0},
141 {0, 0, 0, 0}
142 };
143
144 c = getopt_long (argc, argv, "abc:d:0123456789",
145 long_options, &option_index);
146 if (c == -1)
147 break;
148
149 switch (c)
150 {
151 case 0:
152 printf ("option %s", long_options[option_index].name);
153 if (optarg)
154 printf (" with arg %s", optarg);
155 printf ("\n");
156 break;
157
158 case '0':
159 case '1':
160 case '2':
161 case '3':
162 case '4':
163 case '5':
164 case '6':
165 case '7':
166 case '8':
167 case '9':
168 if (digit_optind != 0 && digit_optind != this_option_optind)
169 printf ("digits occur in two different argv-elements.\n");
170 digit_optind = this_option_optind;
171 printf ("option %c\n", c);
172 break;
173
174 case 'a':
175 printf ("option a\n");
176 break;
177
178 case 'b':
179 printf ("option b\n");
180 break;
181
182 case 'c':
183 printf ("option c with value `%s'\n", optarg);
184 break;
185
186 case 'd':
187 printf ("option d with value `%s'\n", optarg);
188 break;
189
190 case '?':
191 break;
192
193 default:
194 printf ("?? getopt returned character code 0%o ??\n", c);
195 }
196 }
197
198 if (optind < argc)
199 {
200 printf ("non-option ARGV-elements: ");
201 while (optind < argc)
202 printf ("%s ", argv[optind++]);
203 printf ("\n");
204 }
205
206 exit (0);
207 }
208
209 #endif /* TEST */