1 /* $NetBSD: newlocale.c,v 1.3 2013/09/13 13:13:32 joerg Exp $ */ 2 3 /*- 4 * Copyright (c)2008, 2011 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 __RCSID("$NetBSD: newlocale.c,v 1.3 2013/09/13 13:13:32 joerg Exp $"); 31 32 #include "namespace.h" 33 #include <assert.h> 34 #include <errno.h> 35 #include <locale.h> 36 #include <stdlib.h> 37 #include <string.h> 38 39 #include "setlocale_local.h" 40 41 __weak_alias(newlocale, _newlocale) 42 43 locale_t 44 newlocale(int mask, const char *name, locale_t src) 45 { 46 struct _locale *dst; 47 char head[_LOCALENAME_LEN_MAX * (_LC_LAST - 1)], *tail; 48 const char *tokens[_LC_LAST - 1]; 49 _locale_set_t l; 50 int i, howmany, categories[_LC_LAST - 1]; 51 52 if (name == NULL) 53 name = _C_LOCALE; 54 dst = malloc(sizeof(*dst)); 55 if (dst == NULL) 56 return (locale_t)NULL; 57 if (src == NULL) 58 src = _current_locale(); 59 memcpy(dst, src, sizeof(*src)); 60 strlcpy(&head[0], name, sizeof(head)); 61 tokens[0] = (const char *)&head[0]; 62 tail = strchr(tokens[0], '/'); 63 if (tail == NULL) { 64 for (i = 1; i < _LC_LAST; ++i) { 65 if (mask & (1 << i)) { 66 l = _find_category(i); 67 _DIAGASSERT(l != NULL); 68 (*l)(tokens[0], dst); 69 } 70 } 71 } else { 72 *tail++ = '\0'; 73 howmany = 0; 74 for (i = 1; i < _LC_LAST; ++i) { 75 if (mask & (1 << i)) 76 categories[howmany++] = i; 77 } 78 if (howmany-- > 0) { 79 for (i = 1; i < howmany; ++i) { 80 tokens[i] = (const char *)tail; 81 tail = strchr(tokens[i], '/'); 82 if (tail == NULL) { 83 free(dst); 84 return NULL; 85 } 86 } 87 tokens[howmany] = tail; 88 tail = strchr(tokens[howmany], '/'); 89 if (tail != NULL) { 90 free(dst); 91 return NULL; 92 } 93 for (i = 0; i <= howmany; ++i) { 94 l = _find_category(categories[i]); 95 _DIAGASSERT(l != NULL); 96 (*l)(tokens[i], dst); 97 } 98 } 99 } 100 if (_setlocale_cache(dst, NULL)) { 101 free(dst); 102 return NULL; 103 } 104 return (locale_t)dst; 105 } 106