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 #include "getopt.h"
26
27 #if !defined __STDC__ || !__STDC__
28 /* This is a separate conditional since some stdc systems
29 reject `defined (const)'. */
30 #ifndef const
31 #define const
32 #endif
33 #endif
34
35 #include <stdio.h>
36
37 /* Comment out all this code if we are using the GNU C Library, and are not
38 actually compiling the library itself. This code is part of the GNU C
39 Library, but also included in many other GNU distributions. Compiling
40 and linking in this code is a waste when using the GNU C library
41 (especially if it is a shared library). Rather than having every GNU
42 program understand `configure --with-gnu-libc' and omit the object files,
43 it is simpler to just do this in the source for each such file. */
44
45 #define GETOPT_INTERFACE_VERSION 2
46 #if !defined _LIBC && defined __GLIBC__ && __GLIBC__ >= 2
47 #include <gnu-versions.h>
48 #if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION
49 #define ELIDE_CODE
50 #endif
51 #endif
52
53
54 /* This needs to come after some library #include
55 to get __GNU_LIBRARY__ defined. */
56 #ifdef __GNU_LIBRARY__
57 #include <stdlib.h>
58 #endif
59
60 #ifndef NULL
61 #define NULL 0
62 #endif
63
64 int
getopt_long(argc,argv,options,long_options,opt_index)65 getopt_long (argc, argv, options, long_options, opt_index)
66 int argc;
67 char *const *argv;
68 const char *options;
69 const struct option *long_options;
70 int *opt_index;
71 {
72 return _getopt_internal (argc, argv, options, long_options, opt_index, 0);
73 }
74
75 /* Like getopt_long, but '-' as well as '--' can indicate a long option.
76 If an option that starts with '-' (not '--') doesn't match a long option,
77 but does match a short option, it is parsed as a short option
78 instead. */
79
80 int
getopt_long_only(argc,argv,options,long_options,opt_index)81 getopt_long_only (argc, argv, options, long_options, opt_index)
82 int argc;
83 char *const *argv;
84 const char *options;
85 const struct option *long_options;
86 int *opt_index;
87 {
88 return _getopt_internal (argc, argv, options, long_options, opt_index, 1);
89 }
90
91
92
93 #ifdef TEST
94
95 #include <stdio.h>
96
97 int
main(argc,argv)98 main (argc, argv)
99 int argc;
100 char **argv;
101 {
102 int c;
103 int digit_optind = 0;
104
105 while (1)
106 {
107 int this_option_optind = optind ? optind : 1;
108 int option_index = 0;
109 static struct option long_options[] =
110 {
111 {"add", 1, 0, 0},
112 {"append", 0, 0, 0},
113 {"delete", 1, 0, 0},
114 {"verbose", 0, 0, 0},
115 {"create", 0, 0, 0},
116 {"file", 1, 0, 0},
117 {0, 0, 0, 0}
118 };
119
120 c = getopt_long (argc, argv, "abc:d:0123456789",
121 long_options, &option_index);
122 if (c == -1)
123 break;
124
125 switch (c)
126 {
127 case 0:
128 printf ("option %s", long_options[option_index].name);
129 if (optarg)
130 printf (" with arg %s", optarg);
131 printf ("\n");
132 break;
133
134 case '0':
135 case '1':
136 case '2':
137 case '3':
138 case '4':
139 case '5':
140 case '6':
141 case '7':
142 case '8':
143 case '9':
144 if (digit_optind != 0 && digit_optind != this_option_optind)
145 printf ("digits occur in two different argv-elements.\n");
146 digit_optind = this_option_optind;
147 printf ("option %c\n", c);
148 break;
149
150 case 'a':
151 printf ("option a\n");
152 break;
153
154 case 'b':
155 printf ("option b\n");
156 break;
157
158 case 'c':
159 printf ("option c with value `%s'\n", optarg);
160 break;
161
162 case 'd':
163 printf ("option d with value `%s'\n", optarg);
164 break;
165
166 case '?':
167 break;
168
169 default:
170 printf ("?? getopt returned character code 0%o ??\n", c);
171 }
172 }
173
174 if (optind < argc)
175 {
176 printf ("non-option ARGV-elements: ");
177 while (optind < argc)
178 printf ("%s ", argv[optind++]);
179 printf ("\n");
180 }
181
182 exit (0);
183 }
184
185 #endif /* TEST */
186