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 Free Software Foundation, Inc.
3
4 This file is part of the GNU C Library. Its master source is NOT part of
5 the C library, however. The master source lives in /gd/gnu/lib.
6
7 The GNU C Library is free software; you can redistribute it and/or
8 modify it under the terms of the GNU Library General Public License as
9 published by the Free Software Foundation; either version 2 of the
10 License, or (at your option) any later version.
11
12 The GNU C Library is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 Library General Public License for more details.
16
17 You should have received a copy of the GNU Library General Public
18 License along with the GNU C Library; see the file COPYING.LIB. If not,
19 write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, USA. */
21
22 #ifdef HAVE_CONFIG_H
23 #include <config.h>
24 #endif
25
26 #include "getopt.h"
27
28 #if !defined (__STDC__) || !__STDC__
29 /* This is a separate conditional since some stdc systems
30 reject `defined (const)'. */
31 #ifndef MSDOS
32 #ifndef const
33 #define const
34 #endif
35 #endif
36 #endif
37
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
69 int
getopt_long(argc,argv,options,long_options,opt_index)70 getopt_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
85 int
getopt_long_only(argc,argv,options,long_options,opt_index)86 getopt_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
96
97 #endif /* Not ELIDE_CODE. */
98
99 #ifdef TEST
100
101 #include <stdio.h>
102
103 int
main(argc,argv)104 main (argc, argv)
105 int argc;
106 char **argv;
107 {
108 int c;
109 int digit_optind = 0;
110
111 while (1)
112 {
113 int this_option_optind = optind ? optind : 1;
114 int option_index = 0;
115 static struct option long_options[] =
116 {
117 {"add", 1, 0, 0},
118 {"append", 0, 0, 0},
119 {"delete", 1, 0, 0},
120 {"verbose", 0, 0, 0},
121 {"create", 0, 0, 0},
122 {"file", 1, 0, 0},
123 {0, 0, 0, 0}
124 };
125
126 c = getopt_long (argc, argv, "abc:d:0123456789",
127 long_options, &option_index);
128 if (c == -1)
129 break;
130
131 switch (c)
132 {
133 case 0:
134 printf ("option %s", long_options[option_index].name);
135 if (optarg)
136 printf (" with arg %s", optarg);
137 printf ("\n");
138 break;
139
140 case '0':
141 case '1':
142 case '2':
143 case '3':
144 case '4':
145 case '5':
146 case '6':
147 case '7':
148 case '8':
149 case '9':
150 if (digit_optind != 0 && digit_optind != this_option_optind)
151 printf ("digits occur in two different argv-elements.\n");
152 digit_optind = this_option_optind;
153 printf ("option %c\n", c);
154 break;
155
156 case 'a':
157 printf ("option a\n");
158 break;
159
160 case 'b':
161 printf ("option b\n");
162 break;
163
164 case 'c':
165 printf ("option c with value `%s'\n", optarg);
166 break;
167
168 case 'd':
169 printf ("option d with value `%s'\n", optarg);
170 break;
171
172 case '?':
173 break;
174
175 default:
176 printf ("?? getopt returned character code 0%o ??\n", c);
177 }
178 }
179
180 if (optind < argc)
181 {
182 printf ("non-option ARGV-elements: ");
183 while (optind < argc)
184 printf ("%s ", argv[optind++]);
185 printf ("\n");
186 }
187
188 exit (0);
189 }
190
191 #endif /* TEST */
192