1 /* getopt_long and getopt_long_only entry points for GNU getopt.
2 Copyright (C) 1987,88,89,90,91,92,93,94,96,97,98,2004,2006
3 Free Software Foundation, Inc.
4 This file is part of the GNU C Library.
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU Lesser General Public License as published by
8 the Free Software Foundation; either version 2.1, or (at your option)
9 any later version.
10
11 This program 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
14 GNU Lesser General Public License for more details.
15
16 You should have received a copy of the GNU Lesser General Public License along
17 with this program; if not, write to the Free Software Foundation,
18 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
19
20 #ifdef _LIBC
21 # include <getopt.h>
22 #else
23 # include <config.h>
24 # include "getopt.h"
25 #endif
26 #include "getopt_int.h"
27
28 #include <stdio.h>
29
30 /* This needs to come after some library #include
31 to get __GNU_LIBRARY__ defined. */
32 #ifdef __GNU_LIBRARY__
33 #include <stdlib.h>
34 #endif
35
36 #ifndef NULL
37 #define NULL 0
38 #endif
39
40 int
41 getopt_long (int argc, char *__getopt_argv_const *argv, const char *options,
42 const struct option *long_options, int *opt_index)
43 {
44 return _getopt_internal (argc, (char **) argv, options, long_options,
45 opt_index, 0, 0);
46 }
47
48 int
49 _getopt_long_r (int argc, char **argv, const char *options,
50 const struct option *long_options, int *opt_index,
51 struct _getopt_data *d)
52 {
53 return _getopt_internal_r (argc, argv, options, long_options, opt_index,
54 0, 0, d);
55 }
56
57 /* Like getopt_long, but '-' as well as '--' can indicate a long option.
58 If an option that starts with '-' (not '--') doesn't match a long option,
59 but does match a short option, it is parsed as a short option
60 instead. */
61
62 int
63 getopt_long_only (int argc, char *__getopt_argv_const *argv,
64 const char *options,
65 const struct option *long_options, int *opt_index)
66 {
67 return _getopt_internal (argc, (char **) argv, options, long_options,
68 opt_index, 1, 0);
69 }
70
71 int
72 _getopt_long_only_r (int argc, char **argv, const char *options,
73 const struct option *long_options, int *opt_index,
74 struct _getopt_data *d)
75 {
76 return _getopt_internal_r (argc, argv, options, long_options, opt_index,
77 1, 0, d);
78 }
79
80
81 #ifdef TEST
82
83 #include <stdio.h>
84
85 int
86 main (int argc, char **argv)
87 {
88 int c;
89 int digit_optind = 0;
90
91 while (1)
92 {
93 int this_option_optind = optind ? optind : 1;
94 int option_index = 0;
95 static struct option long_options[] =
96 {
97 {"add", 1, 0, 0},
98 {"append", 0, 0, 0},
99 {"delete", 1, 0, 0},
100 {"verbose", 0, 0, 0},
101 {"create", 0, 0, 0},
102 {"file", 1, 0, 0},
103 {0, 0, 0, 0}
104 };
105
106 c = getopt_long (argc, argv, "abc:d:0123456789",
107 long_options, &option_index);
108 if (c == -1)
109 break;
110
111 switch (c)
112 {
113 case 0:
114 printf ("option %s", long_options[option_index].name);
115 if (optarg)
116 printf (" with arg %s", optarg);
117 printf ("\n");
118 break;
119
120 case '0':
121 case '1':
122 case '2':
123 case '3':
124 case '4':
125 case '5':
126 case '6':
127 case '7':
128 case '8':
129 case '9':
130 if (digit_optind != 0 && digit_optind != this_option_optind)
131 printf ("digits occur in two different argv-elements.\n");
132 digit_optind = this_option_optind;
133 printf ("option %c\n", c);
134 break;
135
136 case 'a':
137 printf ("option a\n");
138 break;
139
140 case 'b':
141 printf ("option b\n");
142 break;
143
144 case 'c':
145 printf ("option c with value `%s'\n", optarg);
146 break;
147
148 case 'd':
149 printf ("option d with value `%s'\n", optarg);
150 break;
151
152 case '?':
153 break;
154
155 default:
156 printf ("?? getopt returned character code 0%o ??\n", c);
157 }
158 }
159
160 if (optind < argc)
161 {
162 printf ("non-option ARGV-elements: ");
163 while (optind < argc)
164 printf ("%s ", argv[optind++]);
165 printf ("\n");
166 }
167
168 exit (0);
169 }
170
171 #endif /* TEST */