xref: /illumos-gate/usr/src/lib/libc/port/locale/lmessages.c (revision 75eba5b6d79ed4d2ce3daf7b2806306b6b69a938)
1 /*
2  * Copyright 2010 Nexenta Systems, Inc.  All rights reserved.
3  * Copyright (c) 2001 Alexey Zelkin <phantom@FreeBSD.org>
4  * All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25  * SUCH DAMAGE.
26  */
27 
28 #include "lint.h"
29 #include <stddef.h>
30 #include "ldpart.h"
31 #include "lmessages.h"
32 
33 #define	LCMESSAGES_SIZE_FULL (sizeof (struct lc_messages_T) / sizeof (char *))
34 #define	LCMESSAGES_SIZE_MIN \
35 	(offsetof(struct lc_messages_T, yesstr) / sizeof (char *))
36 
37 static char empty[] = "";
38 
39 static const struct lc_messages_T _C_messages_locale = {
40 	"^[yY]",	/* yesexpr */
41 	"^[nN]",	/* noexpr */
42 	"yes",		/* yesstr */
43 	"no"		/* nostr */
44 };
45 
46 static struct lc_messages_T _messages_locale;
47 static int	_messages_using_locale;
48 static char	*_messages_locale_buf;
49 
50 int
51 __messages_load_locale(const char *name)
52 {
53 	int ret;
54 
55 	ret = __part_load_locale(name, &_messages_using_locale,
56 	    &_messages_locale_buf, "LC_MESSAGES",
57 	    LCMESSAGES_SIZE_FULL, LCMESSAGES_SIZE_MIN,
58 	    (const char **)&_messages_locale);
59 	if (ret == _LDP_LOADED) {
60 		if (_messages_locale.yesstr == NULL)
61 			_messages_locale.yesstr = empty;
62 		if (_messages_locale.nostr == NULL)
63 			_messages_locale.nostr = empty;
64 	}
65 	return (ret);
66 }
67 
68 struct lc_messages_T *
69 __get_current_messages_locale(void)
70 {
71 	return (_messages_using_locale ? &_messages_locale :
72 	    (struct lc_messages_T *)&_C_messages_locale);
73 }
74