xref: /netbsd-src/lib/libc/locale/generic_lc_all.c (revision 404fbe5fb94ca1e054339640cabb2801ce52dd30)
1 /* $NetBSD: generic_lc_all.c,v 1.2 2009/01/11 02:46:28 christos Exp $ */
2 
3 /*-
4  * Copyright (c)2008 Citrus Project,
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  */
28 
29 #include <sys/cdefs.h>
30 #if defined(LIBC_SCCS) && !defined(lint)
31 __RCSID("$NetBSD: generic_lc_all.c,v 1.2 2009/01/11 02:46:28 christos Exp $");
32 #endif /* LIBC_SCCS and not lint */
33 
34 #include <sys/types.h>
35 #include <assert.h>
36 #include <langinfo.h>
37 #define __SETLOCALE_SOURCE__
38 #include <locale.h>
39 #include <stdio.h>
40 #include <stdlib.h>
41 #include <string.h>
42 
43 #include "setlocale_local.h"
44 
45 /*
46  * macro required by all template headers
47  */
48 #define _PREFIX(name)	__CONCAT(_generic_LC_ALL_, name)
49 
50 #include "generic_lc_template_decl.h"
51 
52 const char *
53 _generic_LC_ALL_setlocale(const char * __restrict name,
54     struct _locale_impl_t * __restrict locale)
55 {
56 	_locale_category_t *l;
57 	char head[_LOCALENAME_LEN_MAX * (_LC_LAST - 1)], *tail;
58 	const char *tokens[_LC_LAST], *s, *t;
59 	int i, j;
60 
61 	l = _find_category(1);
62 	_DIAGASSERT(l != NULL);
63 	if (name != NULL) {
64 		strlcpy(&head[0], name, sizeof(head));
65 		tokens[1] = &head[0];
66 		tail = strchr(tokens[1], '/');
67 		if (tail == NULL) {
68 			for (i = 2; i < _LC_LAST; ++i)
69 				tokens[i] = tokens[1];
70 		} else {
71 			*tail++ = '\0';
72 			for (i = 2; i < _LC_LAST - 1; ++i) {
73 				tokens[i] = (const char *)tail;
74 				tail = strchr(tokens[i], '/');
75 				if (tail == NULL)
76 					return NULL;
77 				*tail++ = '\0';
78 			}
79 			tokens[_LC_LAST - 1] = (const char *)tail;
80 			tail = strchr(tokens[i], '/');
81 			if (tail == NULL)
82 				return NULL;
83 		}
84 		(*l->setlocale)(tokens[1], locale);
85 	}
86 	s = (*l->setlocale)(NULL, locale);
87 	_DIAGASSERT(s != NULL);
88 	strlcpy(&locale->query[0], s, sizeof(locale->query));
89 	for (i = 2, j = 0; i < _LC_LAST; ++i) {
90 		l = _find_category(i);
91 		_DIAGASSERT(l != NULL);
92 		if (name != NULL)
93 			(*l->setlocale)(tokens[1], locale);
94 		t = (*l->setlocale)(NULL, locale);
95 		_DIAGASSERT(t != NULL);
96 		if (j == 0) {
97 			if (!strcmp(s, t))
98 				continue;
99 			for (j = 2; j < i; ++j) {
100 				strlcat(&locale->query[0], "/",
101 				    sizeof(locale->query));
102 				strlcat(&locale->query[0], s,
103 				    sizeof(locale->query));
104 			}
105 		}
106 		strlcat(&locale->query[0], "/", sizeof(locale->query));
107 		strlcat(&locale->query[0], t, sizeof(locale->query));
108 	}
109 	return (const char *)&locale->query[0];
110 }
111 
112 /*
113  * macro requrired by generic_lc_template.h
114  */
115 #define _CATEGORY_ID	LC_ALL
116 
117 #include "generic_lc_template.h"
118 _LOCALE_CATEGORY_ENTRY(_generic_LC_ALL_);
119