1 /* getopt_long and getopt_long_only entry points for GNU getopt.
2 Copyright (C) 1987, 88, 89, 90, 91, 92, 1993, 1994
3 Free Software Foundation, Inc.
4
5 This file is part of the GNU C Library. Its master source is NOT part of
6 the C library, however. The master source lives in /gd/gnu/lib.
7
8 The GNU C Library is free software; you can redistribute it and/or
9 modify it under the terms of the GNU Library General Public License as
10 published by the Free Software Foundation; either version 2 of the
11 License, or (at your option) any later version.
12
13 The GNU C Library is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 Library General Public License for more details.
17
18 You should have received a copy of the GNU Library General Public
19 License along with the GNU C Library; see the file COPYING.LIB. If
20 not, write to the Free Software Foundation, Inc., 675 Mass Ave,
21 Cambridge, MA 02139, USA. */
22
23 #ifdef HAVE_CONFIG_H
24 #include <config.h>
25 #endif
26
27 #include "getopt.h"
28
29 #if !defined (__STDC__) || !__STDC__
30 /* This is a separate conditional since some stdc systems
31 reject `defined (const)'. */
32 #ifndef const
33 #define const
34 #endif
35 #endif
36
37 #include <stdio.h>
38
39 /* Comment out all this code if we are using the GNU C Library, and are not
40 actually compiling the library itself. This code is part of the GNU C
41 Library, but also included in many other GNU distributions. Compiling
42 and linking in this code is a waste when using the GNU C library
43 (especially if it is a shared library). Rather than having every GNU
44 program understand `configure --with-gnu-libc' and omit the object files,
45 it is simpler to just do this in the source for each such file. */
46
47 #if defined (_LIBC) || !defined (__GNU_LIBRARY__)
48
49
50 /* This needs to come after some library #include
51 to get __GNU_LIBRARY__ defined. */
52 #ifdef __GNU_LIBRARY__
53 #include <stdlib.h>
54 #else
55 char *getenv ();
56 #endif
57
58 #ifndef NULL
59 #define NULL 0
60 #endif
61
62 int
getopt_long(argc,argv,options,long_options,opt_index)63 getopt_long (argc, argv, options, long_options, opt_index)
64 int argc;
65 char *const *argv;
66 const char *options;
67 const struct option *long_options;
68 int *opt_index;
69 {
70 return _getopt_internal (argc, argv, options, long_options, opt_index, 0);
71 }
72
73 /* Like getopt_long, but '-' as well as '--' can indicate a long option.
74 If an option that starts with '-' (not '--') doesn't match a long option,
75 but does match a short option, it is parsed as a short option
76 instead. */
77
78 int
getopt_long_only(argc,argv,options,long_options,opt_index)79 getopt_long_only (argc, argv, options, long_options, opt_index)
80 int argc;
81 char *const *argv;
82 const char *options;
83 const struct option *long_options;
84 int *opt_index;
85 {
86 return _getopt_internal (argc, argv, options, long_options, opt_index, 1);
87 }
88
89
90 #endif /* _LIBC or not __GNU_LIBRARY__. */
91
92 #ifdef TEST
93
94 #include <stdio.h>
95
96 int
main(argc,argv)97 main (argc, argv)
98 int argc;
99 char **argv;
100 {
101 int c;
102 int digit_optind = 0;
103
104 while (1)
105 {
106 int this_option_optind = optind ? optind : 1;
107 int option_index = 0;
108 static struct option long_options[] =
109 {
110 {"add", 1, 0, 0},
111 {"append", 0, 0, 0},
112 {"delete", 1, 0, 0},
113 {"verbose", 0, 0, 0},
114 {"create", 0, 0, 0},
115 {"file", 1, 0, 0},
116 {0, 0, 0, 0}
117 };
118
119 c = getopt_long (argc, argv, "abc:d:0123456789",
120 long_options, &option_index);
121 if (c == EOF)
122 break;
123
124 switch (c)
125 {
126 case 0:
127 printf ("option %s", long_options[option_index].name);
128 if (optarg)
129 printf (" with arg %s", optarg);
130 printf ("\n");
131 break;
132
133 case '0':
134 case '1':
135 case '2':
136 case '3':
137 case '4':
138 case '5':
139 case '6':
140 case '7':
141 case '8':
142 case '9':
143 if (digit_optind != 0 && digit_optind != this_option_optind)
144 printf ("digits occur in two different argv-elements.\n");
145 digit_optind = this_option_optind;
146 printf ("option %c\n", c);
147 break;
148
149 case 'a':
150 printf ("option a\n");
151 break;
152
153 case 'b':
154 printf ("option b\n");
155 break;
156
157 case 'c':
158 printf ("option c with value `%s'\n", optarg);
159 break;
160
161 case 'd':
162 printf ("option d with value `%s'\n", optarg);
163 break;
164
165 case '?':
166 break;
167
168 default:
169 printf ("?? getopt returned character code 0%o ??\n", c);
170 }
171 }
172
173 if (optind < argc)
174 {
175 printf ("non-option ARGV-elements: ");
176 while (optind < argc)
177 printf ("%s ", argv[optind++]);
178 printf ("\n");
179 }
180
181 exit (0);
182 }
183
184 #endif /* TEST */
185