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 |
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 General Public License as published by |
8 | the Free Software Foundation; either version 2, 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 General Public License for more details. |
15 | |
16 | You should have received a copy of the GNU General Public License along |
17 | with this program; if not, write to the Free Software Foundation, |
18 | Inc., 59 Temple Place - Suite 330, Boston, MA 02110-1301, USA. */ |
19 | |
20 | #ifdef HAVE_CONFIG_H |
21 | #include <config.h> |
22 | #endif |
23 | |
24 | #ifdef _LIBC |
25 | # include <getopt.h> |
26 | #else |
27 | # include "getopt.h" |
28 | #endif |
29 | #include "getopt_int.h" |
30 | |
31 | #include <stdio.h> |
32 | |
33 | /* Comment out all this code if we are using the GNU C Library, and are not |
34 | actually compiling the library itself. This code is part of the GNU C |
35 | Library, but also included in many other GNU distributions. Compiling |
36 | and linking in this code is a waste when using the GNU C library |
37 | (especially if it is a shared library). Rather than having every GNU |
38 | program understand `configure --with-gnu-libc' and omit the object files, |
39 | it is simpler to just do this in the source for each such file. */ |
40 | |
41 | #define GETOPT_INTERFACE_VERSION 2 |
42 | #if !defined _LIBC && defined __GLIBC__ && __GLIBC__ >= 2 |
43 | #include <gnu-versions.h> |
44 | #if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION |
45 | #define ELIDE_CODE |
46 | #endif |
47 | #endif |
48 | |
49 | #ifndef ELIDE_CODE |
50 | |
51 | |
52 | /* This needs to come after some library #include |
53 | to get __GNU_LIBRARY__ defined. */ |
54 | #ifdef __GNU_LIBRARY__ |
55 | #include <stdlib.h> |
56 | #endif |
57 | |
58 | #ifndef NULL |
59 | #define NULL 0 |
60 | #endif |
61 | |
62 | int |
63 | getopt_long ( |
64 | int argc, |
65 | char *const *argv, |
66 | const char *options, |
67 | const struct option *long_options, |
68 | int *opt_index |
69 | ) |
70 | { |
71 | return _getopt_internal (argc, argv, options, long_options, opt_index, 0); |
72 | } |
73 | |
74 | int |
75 | _getopt_long_r ( |
76 | int argc, |
77 | char *const *argv, |
78 | const char *options, |
79 | const struct option *long_options, |
80 | int *opt_index, |
81 | struct _getopt_data *d |
82 | ) |
83 | { |
84 | return _getopt_internal_r (argc, argv, options, long_options, opt_index, |
85 | 0, d); |
86 | } |
87 | |
88 | /* Like getopt_long, but '-' as well as '--' can indicate a long option. |
89 | If an option that starts with '-' (not '--') doesn't match a long option, |
90 | but does match a short option, it is parsed as a short option |
91 | instead. */ |
92 | |
93 | int |
94 | getopt_long_only ( |
95 | int argc, |
96 | char *const *argv, |
97 | const char *options, |
98 | const struct option *long_options, |
99 | int *opt_index |
100 | ) |
101 | { |
102 | return _getopt_internal (argc, argv, options, long_options, opt_index, 1); |
103 | } |
104 | |
105 | int |
106 | _getopt_long_only_r ( |
107 | int argc, |
108 | char *const *argv, |
109 | const char *options, |
110 | const struct option *long_options, |
111 | int *opt_index, |
112 | struct _getopt_data *d |
113 | ) |
114 | { |
115 | return _getopt_internal_r (argc, argv, options, long_options, opt_index, |
116 | 1, d); |
117 | } |
118 | |
119 | #endif /* Not ELIDE_CODE. */ |
120 | |
121 | #ifdef TEST |
122 | |
123 | #include <stdio.h> |
124 | |
125 | int |
126 | main ( |
127 | int argc, |
128 | char **argv |
129 | ) |
130 | { |
131 | int c; |
132 | int digit_optind = 0; |
133 | |
134 | while (1) |
135 | { |
136 | int this_option_optind = optind ? optind : 1; |
137 | int option_index = 0; |
138 | static struct option long_options[] = { |
139 | {"add" , 1, 0, 0}, |
140 | {"append" , 0, 0, 0}, |
141 | {"delete" , 1, 0, 0}, |
142 | {"verbose" , 0, 0, 0}, |
143 | {"create" , 0, 0, 0}, |
144 | {"file" , 1, 0, 0}, |
145 | {0, 0, 0, 0} |
146 | }; |
147 | |
148 | c = getopt_long (argc, argv, "abc:d:0123456789" , |
149 | long_options, &option_index); |
150 | if (c == -1) |
151 | break; |
152 | |
153 | switch (c) |
154 | { |
155 | case 0: |
156 | printf ("option %s" , long_options[option_index].name); |
157 | if (optarg) |
158 | printf (" with arg %s" , optarg); |
159 | printf ("\n" ); |
160 | break; |
161 | |
162 | case '0': |
163 | case '1': |
164 | case '2': |
165 | case '3': |
166 | case '4': |
167 | case '5': |
168 | case '6': |
169 | case '7': |
170 | case '8': |
171 | case '9': |
172 | if (digit_optind != 0 && digit_optind != this_option_optind) |
173 | printf ("digits occur in two different argv-elements.\n" ); |
174 | digit_optind = this_option_optind; |
175 | printf ("option %c\n" , c); |
176 | break; |
177 | |
178 | case 'a': |
179 | printf ("option a\n" ); |
180 | break; |
181 | |
182 | case 'b': |
183 | printf ("option b\n" ); |
184 | break; |
185 | |
186 | case 'c': |
187 | printf ("option c with value `%s'\n" , optarg); |
188 | break; |
189 | |
190 | case 'd': |
191 | printf ("option d with value `%s'\n" , optarg); |
192 | break; |
193 | |
194 | case '?': |
195 | break; |
196 | |
197 | default: |
198 | printf ("?? getopt returned character code 0%o ??\n" , c); |
199 | } |
200 | } |
201 | |
202 | if (optind < argc) |
203 | { |
204 | printf ("non-option ARGV-elements: " ); |
205 | while (optind < argc) |
206 | printf ("%s " , argv[optind++]); |
207 | printf ("\n" ); |
208 | } |
209 | |
210 | exit (0); |
211 | } |
212 | |
213 | #endif /* TEST */ |
214 | |