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11443f4a 1/* getopt_long and getopt_long_only entry points for GNU getopt.
fc659dfd 2 Copyright (C) 1987,88,89,90,91,92,93,94,96,97,98
11443f4a 3 Free Software Foundation, Inc.
4a0d8936 4 This file is part of the GNU C Library.
11443f4a 5
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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.
11443f4a 10
d5629ce3 11 This program is distributed in the hope that it will be useful,
11443f4a 12 but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
11443f4a 15
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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,
d5629ce3 18 Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
11443f4a
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19\f
20#ifdef HAVE_CONFIG_H
21#include <config.h>
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22#endif
23
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24#ifdef _LIBC
25# include <getopt.h>
26#else
27# include "getopt.h"
28#endif
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
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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
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96# ifdef _LIBC
97libc_hidden_def (getopt_long)
98libc_hidden_def (getopt_long_only)
99# endif
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100
101#endif /* Not ELIDE_CODE. */
102\f
103#ifdef TEST
104
105#include <stdio.h>
106
107int
108main (argc, argv)
109 int argc;
110 char **argv;
111{
112 int c;
113 int digit_optind = 0;
114
115 while (1)
116 {
117 int this_option_optind = optind ? optind : 1;
118 int option_index = 0;
119 static struct option long_options[] =
120 {
121 {"add", 1, 0, 0},
122 {"append", 0, 0, 0},
123 {"delete", 1, 0, 0},
124 {"verbose", 0, 0, 0},
125 {"create", 0, 0, 0},
126 {"file", 1, 0, 0},
127 {0, 0, 0, 0}
128 };
129
130 c = getopt_long (argc, argv, "abc:d:0123456789",
131 long_options, &option_index);
132 if (c == -1)
133 break;
134
135 switch (c)
136 {
137 case 0:
138 printf ("option %s", long_options[option_index].name);
139 if (optarg)
140 printf (" with arg %s", optarg);
141 printf ("\n");
142 break;
143
144 case '0':
145 case '1':
146 case '2':
147 case '3':
148 case '4':
149 case '5':
150 case '6':
151 case '7':
152 case '8':
153 case '9':
154 if (digit_optind != 0 && digit_optind != this_option_optind)
155 printf ("digits occur in two different argv-elements.\n");
156 digit_optind = this_option_optind;
157 printf ("option %c\n", c);
158 break;
159
160 case 'a':
161 printf ("option a\n");
162 break;
163
164 case 'b':
165 printf ("option b\n");
166 break;
167
168 case 'c':
169 printf ("option c with value `%s'\n", optarg);
170 break;
171
172 case 'd':
173 printf ("option d with value `%s'\n", optarg);
174 break;
175
176 case '?':
177 break;
178
179 default:
180 printf ("?? getopt returned character code 0%o ??\n", c);
181 }
182 }
183
184 if (optind < argc)
185 {
186 printf ("non-option ARGV-elements: ");
187 while (optind < argc)
188 printf ("%s ", argv[optind++]);
189 printf ("\n");
190 }
191
192 exit (0);
193}
194
195#endif /* TEST */