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newlocale.c revision 1.3.4.2 
      1  1.3.4.2  yamt /* $NetBSD: newlocale.c,v 1.3.4.2 2014/05/22 11:36:52 yamt Exp $ */
      2  1.3.4.2  yamt 
      3  1.3.4.2  yamt /*-
      4  1.3.4.2  yamt  * Copyright (c)2008, 2011 Citrus Project,
      5  1.3.4.2  yamt  * All rights reserved.
      6  1.3.4.2  yamt  *
      7  1.3.4.2  yamt  * Redistribution and use in source and binary forms, with or without
      8  1.3.4.2  yamt  * modification, are permitted provided that the following conditions
      9  1.3.4.2  yamt  * are met:
     10  1.3.4.2  yamt  * 1. Redistributions of source code must retain the above copyright
     11  1.3.4.2  yamt  *    notice, this list of conditions and the following disclaimer.
     12  1.3.4.2  yamt  * 2. Redistributions in binary form must reproduce the above copyright
     13  1.3.4.2  yamt  *    notice, this list of conditions and the following disclaimer in the
     14  1.3.4.2  yamt  *    documentation and/or other materials provided with the distribution.
     15  1.3.4.2  yamt  *
     16  1.3.4.2  yamt  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     17  1.3.4.2  yamt  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     18  1.3.4.2  yamt  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     19  1.3.4.2  yamt  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     20  1.3.4.2  yamt  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     21  1.3.4.2  yamt  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     22  1.3.4.2  yamt  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     23  1.3.4.2  yamt  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     24  1.3.4.2  yamt  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     25  1.3.4.2  yamt  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     26  1.3.4.2  yamt  * SUCH DAMAGE.
     27  1.3.4.2  yamt  */
     28  1.3.4.2  yamt 
     29  1.3.4.2  yamt #include <sys/cdefs.h>
     30  1.3.4.2  yamt __RCSID("$NetBSD: newlocale.c,v 1.3.4.2 2014/05/22 11:36:52 yamt Exp $");
     31  1.3.4.2  yamt 
     32  1.3.4.2  yamt #include "namespace.h"
     33  1.3.4.2  yamt #include <assert.h>
     34  1.3.4.2  yamt #include <errno.h>
     35  1.3.4.2  yamt #include <locale.h>
     36  1.3.4.2  yamt #include <stdlib.h>
     37  1.3.4.2  yamt #include <string.h>
     38  1.3.4.2  yamt 
     39  1.3.4.2  yamt #include "setlocale_local.h"
     40  1.3.4.2  yamt 
     41  1.3.4.2  yamt __weak_alias(newlocale, _newlocale)
     42  1.3.4.2  yamt 
     43  1.3.4.2  yamt locale_t
     44  1.3.4.2  yamt newlocale(int mask, const char *name, locale_t src)
     45  1.3.4.2  yamt {
     46  1.3.4.2  yamt 	struct _locale *dst;
     47  1.3.4.2  yamt 	char head[_LOCALENAME_LEN_MAX * (_LC_LAST - 1)], *tail;
     48  1.3.4.2  yamt 	const char *tokens[_LC_LAST - 1];
     49  1.3.4.2  yamt 	_locale_set_t l;
     50  1.3.4.2  yamt 	int i, howmany, categories[_LC_LAST - 1];
     51  1.3.4.2  yamt 
     52  1.3.4.2  yamt 	if (name == NULL)
     53  1.3.4.2  yamt 		name = _C_LOCALE;
     54  1.3.4.2  yamt 	dst = malloc(sizeof(*dst));
     55  1.3.4.2  yamt 	if (dst == NULL)
     56  1.3.4.2  yamt 		return (locale_t)NULL;
     57  1.3.4.2  yamt 	if (src == NULL)
     58  1.3.4.2  yamt 		src = _current_locale();
     59  1.3.4.2  yamt 	memcpy(dst, src, sizeof(*src));
     60  1.3.4.2  yamt 	strlcpy(&head[0], name, sizeof(head));
     61  1.3.4.2  yamt 	tokens[0] = (const char *)&head[0];
     62  1.3.4.2  yamt 	tail = strchr(tokens[0], '/');
     63  1.3.4.2  yamt 	if (tail == NULL) {
     64  1.3.4.2  yamt 		for (i = 1; i < _LC_LAST; ++i) {
     65  1.3.4.2  yamt 			if (mask & (1 << i)) {
     66  1.3.4.2  yamt 				l = _find_category(i);
     67  1.3.4.2  yamt 				_DIAGASSERT(l != NULL);
     68  1.3.4.2  yamt 				(*l)(tokens[0], dst);
     69  1.3.4.2  yamt 			}
     70  1.3.4.2  yamt 		}
     71  1.3.4.2  yamt 	} else {
     72  1.3.4.2  yamt 		*tail++ = '\0';
     73  1.3.4.2  yamt 		howmany = 0;
     74  1.3.4.2  yamt 		for (i = 1; i < _LC_LAST; ++i) {
     75  1.3.4.2  yamt 			if (mask & (1 << i))
     76  1.3.4.2  yamt 				categories[howmany++] = i;
     77  1.3.4.2  yamt 		}
     78  1.3.4.2  yamt 		if (howmany-- > 0) {
     79  1.3.4.2  yamt 			for (i = 1; i < howmany; ++i) {
     80  1.3.4.2  yamt 				tokens[i] = (const char *)tail;
     81  1.3.4.2  yamt 				tail = strchr(tokens[i], '/');
     82  1.3.4.2  yamt 				if (tail == NULL) {
     83  1.3.4.2  yamt 					free(dst);
     84  1.3.4.2  yamt 					return NULL;
     85  1.3.4.2  yamt 				}
     86  1.3.4.2  yamt 			}
     87  1.3.4.2  yamt 			tokens[howmany] = tail;
     88  1.3.4.2  yamt 			tail = strchr(tokens[howmany], '/');
     89  1.3.4.2  yamt 			if (tail != NULL) {
     90  1.3.4.2  yamt 				free(dst);
     91  1.3.4.2  yamt 				return NULL;
     92  1.3.4.2  yamt 			}
     93  1.3.4.2  yamt 			for (i = 0; i <= howmany; ++i) {
     94  1.3.4.2  yamt 				l = _find_category(categories[i]);
     95  1.3.4.2  yamt 				_DIAGASSERT(l != NULL);
     96  1.3.4.2  yamt 				(*l)(tokens[i], dst);
     97  1.3.4.2  yamt 			}
     98  1.3.4.2  yamt 		}
     99  1.3.4.2  yamt 	}
    100  1.3.4.2  yamt 	if (_setlocale_cache(dst, NULL)) {
    101  1.3.4.2  yamt 		free(dst);
    102  1.3.4.2  yamt 		return NULL;
    103  1.3.4.2  yamt 	}
    104  1.3.4.2  yamt 	return (locale_t)dst;
    105  1.3.4.2  yamt }
    106