/* ![[previous]](../icons/n_left.png)
![[next]](../icons/n_right.png)
![[first]](../icons/first.png)
![[last]](../icons/last.png)
![[top]](../icons/n_top.png)
![[bottom]](../icons/bottom.png)
![[index]](../icons/index.png)
![[help]](../icons/help.png)
*/
This source file includes following definitions.
- getopt_long
- _getopt_long_r
- getopt_long_only
- _getopt_long_only_r
- main
1 /* getopt_long and getopt_long_only entry points for GNU getopt.
2 Copyright (C) 1987,88,89,90,91,92,93,94,96,97,98,2004
3 Free Software Foundation, Inc.
4 This file is part of the GNU C Library.
5
6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Lesser General Public
8 License as published by the Free Software Foundation; either
9 version 2.1 of the License, or (at your option) any later version.
10
11 The GNU C Library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
15
16 You should have received a copy of the GNU Lesser General Public
17 License along with the GNU C Library; if not, write to the Free
18 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
19 02111-1307 USA. */
20
21 #ifdef HAVE_CONFIG_H
22 #include <config.h>
23 #endif
24
25 #ifdef _LIBC
26 # include <getopt.h>
27 #else
28 # include "getopt.h"
29 #endif
30 #include "getopt_int.h"
31
32 #include <stdio.h>
33
34 /* Comment out all this code if we are using the GNU C Library, and are not
35 actually compiling the library itself. This code is part of the GNU C
36 Library, but also included in many other GNU distributions. Compiling
37 and linking in this code is a waste when using the GNU C library
38 (especially if it is a shared library). Rather than having every GNU
39 program understand `configure --with-gnu-libc' and omit the object files,
40 it is simpler to just do this in the source for each such file. */
41
42 #define GETOPT_INTERFACE_VERSION 2
43 #if !defined _LIBC && defined __GLIBC__ && __GLIBC__ >= 2
44 #include <gnu-versions.h>
45 #if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION
46 #define ELIDE_CODE
47 #endif
48 #endif
49
50 #ifndef ELIDE_CODE
51
52
53 /* This needs to come after some library #include
54 to get __GNU_LIBRARY__ defined. */
55 #ifdef __GNU_LIBRARY__
56 #include <stdlib.h>
57 #endif
58
59 #ifndef NULL
60 #define NULL 0
61 #endif
62
63 int
64 getopt_long (int argc, char *const *argv, const char *options,
65 const struct option *long_options, int *opt_index)
66 {
67 return _getopt_internal (argc, argv, options, long_options, opt_index, 0);
68 }
69
70 int
71 _getopt_long_r (int argc, char *const *argv, const char *options,
72 const struct option *long_options, int *opt_index,
73 struct _getopt_data *d)
74 {
75 return _getopt_internal_r (argc, argv, options, long_options, opt_index,
76 0, d);
77 }
78
79 /* Like getopt_long, but '-' as well as '--' can indicate a long option.
80 If an option that starts with '-' (not '--') doesn't match a long option,
81 but does match a short option, it is parsed as a short option
82 instead. */
83
84 int
85 getopt_long_only (int argc, char *const *argv, const char *options,
86 const struct option *long_options, int *opt_index)
87 {
88 return _getopt_internal (argc, argv, options, long_options, opt_index, 1);
89 }
90
91 int
92 _getopt_long_only_r (int argc, char *const *argv, const char *options,
93 const struct option *long_options, int *opt_index,
94 struct _getopt_data *d)
95 {
96 return _getopt_internal_r (argc, argv, options, long_options, opt_index,
97 1, d);
98 }
99
100 #endif /* Not ELIDE_CODE. */
101
102 #ifdef TEST
103
104 #include <stdio.h>
105
106 int
107 main (int argc, char **argv)
108 {
109 int c;
110 int digit_optind = 0;
111
112 while (1)
113 {
114 int this_option_optind = optind ? optind : 1;
115 int option_index = 0;
116 static struct option long_options[] =
117 {
118 {"add", 1, 0, 0},
119 {"append", 0, 0, 0},
120 {"delete", 1, 0, 0},
121 {"verbose", 0, 0, 0},
122 {"create", 0, 0, 0},
123 {"file", 1, 0, 0},
124 {0, 0, 0, 0}
125 };
126
127 c = getopt_long (argc, argv, "abc:d:0123456789",
128 long_options, &option_index);
129 if (c == -1)
130 break;
131
132 switch (c)
133 {
134 case 0:
135 printf ("option %s", long_options[option_index].name);
136 if (optarg)
137 printf (" with arg %s", optarg);
138 printf ("\n");
139 break;
140
141 case '0':
142 case '1':
143 case '2':
144 case '3':
145 case '4':
146 case '5':
147 case '6':
148 case '7':
149 case '8':
150 case '9':
151 if (digit_optind != 0 && digit_optind != this_option_optind)
152 printf ("digits occur in two different argv-elements.\n");
153 digit_optind = this_option_optind;
154 printf ("option %c\n", c);
155 break;
156
157 case 'a':
158 printf ("option a\n");
159 break;
160
161 case 'b':
162 printf ("option b\n");
163 break;
164
165 case 'c':
166 printf ("option c with value `%s'\n", optarg);
167 break;
168
169 case 'd':
170 printf ("option d with value `%s'\n", optarg);
171 break;
172
173 case '?':
174 break;
175
176 default:
177 printf ("?? getopt returned character code 0%o ??\n", c);
178 }
179 }
180
181 if (optind < argc)
182 {
183 printf ("non-option ARGV-elements: ");
184 while (optind < argc)
185 printf ("%s ", argv[optind++]);
186 printf ("\n");
187 }
188
189 exit (0);
190 }
191
192 #endif /* TEST */
/* ![[top]](../icons/top.png)
![[bottom]](../icons/n_bottom.png)
*/