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; 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
31 #if !defined __STDC__ || !__STDC__
32 /* This is a separate conditional since some stdc systems
33 reject `defined (const)'. */
34 #ifndef const
35 #define const
36 #endif
37 #endif
38
39 #include <stdio.h>
40
41 /* Comment out all this code if we are using the GNU C Library, and are not
42 actually compiling the library itself. This code is part of the GNU C
43 Library, but also included in many other GNU distributions. Compiling
44 and linking in this code is a waste when using the GNU C library
45 (especially if it is a shared library). Rather than having every GNU
46 program understand `configure --with-gnu-libc' and omit the object files,
47 it is simpler to just do this in the source for each such file. */
48
49 #define GETOPT_INTERFACE_VERSION 2
50 #if !defined _LIBC && defined __GLIBC__ && __GLIBC__ >= 2
51 #include <gnu-versions.h>
52 #if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION
53 #define ELIDE_CODE
54 #endif
55 #endif
56
57 #ifndef ELIDE_CODE
58
59
60 /* This needs to come after some library #include
61 to get __GNU_LIBRARY__ defined. */
62 #ifdef __GNU_LIBRARY__
63 #include <stdlib.h>
64 #endif
65
66 #ifndef NULL
67 #define NULL 0
68 #endif
69
70 int
getopt_long(argc,argv,options,long_options,opt_index)71 getopt_long (argc, argv, options, long_options, opt_index)
72 int argc;
73 char *const *argv;
74 const char *options;
75 const struct option *long_options;
76 int *opt_index;
77 {
78 return _getopt_internal (argc, argv, options, long_options, opt_index, 0);
79 }
80
81 /* Like getopt_long, but '-' as well as '--' can indicate a long option.
82 If an option that starts with '-' (not '--') doesn't match a long option,
83 but does match a short option, it is parsed as a short option
84 instead. */
85
86 int
getopt_long_only(argc,argv,options,long_options,opt_index)87 getopt_long_only (argc, argv, options, long_options, opt_index)
88 int argc;
89 char *const *argv;
90 const char *options;
91 const struct option *long_options;
92 int *opt_index;
93 {
94 return _getopt_internal (argc, argv, options, long_options, opt_index, 1);
95 }
96
97 # ifdef _LIBC
98 libc_hidden_def (getopt_long)
99 libc_hidden_def (getopt_long_only)
100 # endif
101
102 #endif /* Not ELIDE_CODE. */
103
104 #ifdef TEST
105
106 #include <stdio.h>
107
108 int
109 main (argc, argv)
110 int argc;
111 char **argv;
112 {
113 int c;
114 int digit_optind = 0;
115
116 while (1)
117 {
118 int this_option_optind = optind ? optind : 1;
119 int option_index = 0;
120 static struct option long_options[] =
121 {
122 {"add", 1, 0, 0},
123 {"append", 0, 0, 0},
124 {"delete", 1, 0, 0},
125 {"verbose", 0, 0, 0},
126 {"create", 0, 0, 0},
127 {"file", 1, 0, 0},
128 {0, 0, 0, 0}
129 };
130
131 c = getopt_long (argc, argv, "abc:d:0123456789",
132 long_options, &option_index);
133 if (c == -1)
134 break;
135
136 switch (c)
137 {
138 case 0:
139 printf ("option %s", long_options[option_index].name);
140 if (optarg)
141 printf (" with arg %s", optarg);
142 printf ("\n");
143 break;
144
145 case '0':
146 case '1':
147 case '2':
148 case '3':
149 case '4':
150 case '5':
151 case '6':
152 case '7':
153 case '8':
154 case '9':
155 if (digit_optind != 0 && digit_optind != this_option_optind)
156 printf ("digits occur in two different argv-elements.\n");
157 digit_optind = this_option_optind;
158 printf ("option %c\n", c);
159 break;
160
161 case 'a':
162 printf ("option a\n");
163 break;
164
165 case 'b':
166 printf ("option b\n");
167 break;
168
169 case 'c':
170 printf ("option c with value `%s'\n", optarg);
171 break;
172
173 case 'd':
174 printf ("option d with value `%s'\n", optarg);
175 break;
176
177 case '?':
178 break;
179
180 default:
181 printf ("?? getopt returned character code 0%o ??\n", c);
182 }
183 }
184
185 if (optind < argc)
186 {
187 printf ("non-option ARGV-elements: ");
188 while (optind < argc)
189 printf ("%s ", argv[optind++]);
190 printf ("\n");
191 }
192
193 exit (0);
194 }
195
196 #endif /* TEST */
197