dpkg (1.18.25) stretch; urgency=medium
[dpkg] / lib / compat / getopt1.c
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1479465f
GJ
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 the C library, however. The master source lives in /gd/gnu/lib.
5
6NOTE: The canonical source of this file is maintained with the GNU C Library.
7Bugs can be reported to bug-glibc@prep.ai.mit.edu.
8
9This program is free software; you can redistribute it and/or modify it
10under the terms of the GNU General Public License as published by the
11Free Software Foundation; either version 2, or (at your option) any
12later version.
13
14This program is distributed in the hope that it will be useful,
15but WITHOUT ANY WARRANTY; without even the implied warranty of
16MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17GNU General Public License for more details.
18
19You should have received a copy of the GNU General Public License
20along with this program; if not, write to the Free Software
21Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
22USA. */
23\f
24#ifdef HAVE_CONFIG_H
25#include <config.h>
26#endif
27
28#include "getopt.h"
29
30#if !defined (__STDC__) || !__STDC__
31/* This is a separate conditional since some stdc systems
32 reject `defined (const)'. */
33#ifndef const
34#define const
35#endif
36#endif
37
38#include <stdio.h>
39
40/* Comment out all this code if we are using the GNU C Library, and are not
41 actually compiling the library itself. This code is part of the GNU C
42 Library, but also included in many other GNU distributions. Compiling
43 and linking in this code is a waste when using the GNU C library
44 (especially if it is a shared library). Rather than having every GNU
45 program understand `configure --with-gnu-libc' and omit the object files,
46 it is simpler to just do this in the source for each such file. */
47
48#define GETOPT_INTERFACE_VERSION 2
49#if !defined (_LIBC) && defined (__GLIBC__) && __GLIBC__ >= 2
50#include <gnu-versions.h>
51#if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION
52#define ELIDE_CODE
53#endif
54#endif
55
56#ifndef ELIDE_CODE
57
58
59/* This needs to come after some library #include
60 to get __GNU_LIBRARY__ defined. */
61#ifdef __GNU_LIBRARY__
62#include <stdlib.h>
63#endif
64
65#ifndef NULL
66#define NULL 0
67#endif
68
69int
70getopt_long (argc, argv, options, long_options, opt_index)
71 int argc;
72 char *const *argv;
73 const char *options;
74 const struct option *long_options;
75 int *opt_index;
76{
77 return _getopt_internal (argc, argv, options, long_options, opt_index, 0);
78}
79
80/* Like getopt_long, but '-' as well as '--' can indicate a long option.
81 If an option that starts with '-' (not '--') doesn't match a long option,
82 but does match a short option, it is parsed as a short option
83 instead. */
84
85int
86getopt_long_only (argc, argv, options, long_options, opt_index)
87 int argc;
88 char *const *argv;
89 const char *options;
90 const struct option *long_options;
91 int *opt_index;
92{
93 return _getopt_internal (argc, argv, options, long_options, opt_index, 1);
94}
95
96
97#endif /* Not ELIDE_CODE. */
98\f
99#ifdef TEST
100
101#include <stdio.h>
102
103int
104main (argc, argv)
105 int argc;
106 char **argv;
107{
108 int c;
109 int digit_optind = 0;
110
111 while (1)
112 {
113 int this_option_optind = optind ? optind : 1;
114 int option_index = 0;
115 static struct option long_options[] =
116 {
117 {"add", 1, 0, 0},
118 {"append", 0, 0, 0},
119 {"delete", 1, 0, 0},
120 {"verbose", 0, 0, 0},
121 {"create", 0, 0, 0},
122 {"file", 1, 0, 0},
123 {0, 0, 0, 0}
124 };
125
126 c = getopt_long (argc, argv, "abc:d:0123456789",
127 long_options, &option_index);
128 if (c == -1)
129 break;
130
131 switch (c)
132 {
133 case 0:
134 printf ("option %s", long_options[option_index].name);
135 if (optarg)
136 printf (" with arg %s", optarg);
137 printf ("\n");
138 break;
139
140 case '0':
141 case '1':
142 case '2':
143 case '3':
144 case '4':
145 case '5':
146 case '6':
147 case '7':
148 case '8':
149 case '9':
150 if (digit_optind != 0 && digit_optind != this_option_optind)
151 printf ("digits occur in two different argv-elements.\n");
152 digit_optind = this_option_optind;
153 printf ("option %c\n", c);
154 break;
155
156 case 'a':
157 printf ("option a\n");
158 break;
159
160 case 'b':
161 printf ("option b\n");
162 break;
163
164 case 'c':
165 printf ("option c with value `%s'\n", optarg);
166 break;
167
168 case 'd':
169 printf ("option d with value `%s'\n", optarg);
170 break;
171
172 case '?':
173 break;
174
175 default:
176 printf ("?? getopt returned character code 0%o ??\n", c);
177 }
178 }
179
180 if (optind < argc)
181 {
182 printf ("non-option ARGV-elements: ");
183 while (optind < argc)
184 printf ("%s ", argv[optind++]);
185 printf ("\n");
186 }
187
188 exit (0);
189}
190
191#endif /* TEST */