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
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.
18 If not, see <https://www.gnu.org/licenses/>. */
19 #include <config.h>
20 #if !defined(HAVE_GETOPT_H) || !defined(HAVE_GETOPT_LONG)
21
22 #ifdef HAVE_CONFIG_H
23 #include <config.h>
24 #endif
25
26 #ifdef _LIBC
27 # include <getopt.h>
28 #else
29 # include "../include/lgetopt.h"
30 #endif
31
32 #if !defined __STDC__ || !__STDC__
33 /* This is a separate conditional since some stdc systems
34 reject `defined (const)'. */
35 #ifndef const
36 #define const
37 #endif
38 #endif
39
40 #include <stdio.h>
41
42 /* Comment out all this code if we are using the GNU C Library, and are not
43 actually compiling the library itself. This code is part of the GNU C
44 Library, but also included in many other GNU distributions. Compiling
45 and linking in this code is a waste when using the GNU C library
46 (especially if it is a shared library). Rather than having every GNU
47 program understand `configure --with-gnu-libc' and omit the object files,
48 it is simpler to just do this in the source for each such file. */
49
50 #define GETOPT_INTERFACE_VERSION 2
51 #if !defined _LIBC && defined __GLIBC__ && __GLIBC__ >= 2
52 #include <gnu-versions.h>
53 #if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION
54 #define ELIDE_CODE
55 #endif
56 #endif
57
58 #ifndef ELIDE_CODE
59
60
61 /* This needs to come after some library #include
62 to get __GNU_LIBRARY__ defined. */
63 #ifdef __GNU_LIBRARY__
64 #include <stdlib.h>
65 #endif
66
67 #ifndef NULL
68 #define NULL 0
69 #endif
70
71 int
getopt_longnull72 getopt_long (argc, argv, options, long_options, opt_index)
73 int argc;
74 char *const *argv;
75 const char *options;
76 const struct option *long_options;
77 int *opt_index;
78 {
79 return _getopt_internal (argc, argv, options, long_options, opt_index, 0);
80 }
81
82 /* Like getopt_long, but '-' as well as '--' can indicate a long option.
83 If an option that starts with '-' (not '--') doesn't match a long option,
84 but does match a short option, it is parsed as a short option
85 instead. */
86
87 int
getopt_long_onlynull88 getopt_long_only (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, 1);
96 }
97
98 # ifdef _LIBC
99 libc_hidden_def (getopt_long)
100 libc_hidden_def (getopt_long_only)
101 # endif
102
103 #endif /* Not ELIDE_CODE. */
104
105 #ifdef TEST
106
107 #include <stdio.h>
108
109 int
110 main (argc, argv)
111 int argc;
112 char **argv;
113 {
114 int c;
115 int digit_optind = 0;
116
117 while (1)
118 {
119 int this_option_optind = optind ? optind : 1;
120 int option_index = 0;
121 static struct option long_options[] =
122 {
123 {"add", 1, 0, 0},
124 {"append", 0, 0, 0},
125 {"delete", 1, 0, 0},
126 {"verbose", 0, 0, 0},
127 {"create", 0, 0, 0},
128 {"file", 1, 0, 0},
129 {0, 0, 0, 0}
130 };
131
132 c = getopt_long (argc, argv, "abc:d:0123456789",
133 long_options, &option_index);
134 if (c == -1)
135 break;
136
137 switch (c)
138 {
139 case 0:
140 printf ("option %s", long_options[option_index].name);
141 if (optarg)
142 printf (" with arg %s", optarg);
143 printf ("\n");
144 break;
145
146 case '0':
147 case '1':
148 case '2':
149 case '3':
150 case '4':
151 case '5':
152 case '6':
153 case '7':
154 case '8':
155 case '9':
156 if (digit_optind != 0 && digit_optind != this_option_optind)
157 printf ("digits occur in two different argv-elements.\n");
158 digit_optind = this_option_optind;
159 printf ("option %c\n", c);
160 break;
161
162 case 'a':
163 printf ("option a\n");
164 break;
165
166 case 'b':
167 printf ("option b\n");
168 break;
169
170 case 'c':
171 printf ("option c with value `%s'\n", optarg);
172 break;
173
174 case 'd':
175 printf ("option d with value `%s'\n", optarg);
176 break;
177
178 case '?':
179 break;
180
181 default:
182 printf ("?? getopt returned character code 0%o ??\n", c);
183 }
184 }
185
186 if (optind < argc)
187 {
188 printf ("non-option ARGV-elements: ");
189 while (optind < argc)
190 printf ("%s ", argv[optind++]);
191 printf ("\n");
192 }
193
194 exit (0);
195 }
196
197 #endif /* TEST */
198 #endif /* HAVE_GETOPT_LONG */
199