minix/lib/libc/locale/setlocale.c

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/* $NetBSD: setlocale.c,v 1.60 2012/03/04 21:14:56 tnozaki Exp $ */
/*-
* Copyright (c)2008 Citrus Project,
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#if defined(LIBC_SCCS) && !defined(lint)
__RCSID("$NetBSD: setlocale.c,v 1.60 2012/03/04 21:14:56 tnozaki Exp $");
#endif /* LIBC_SCCS and not lint */
#include <sys/types.h>
#include <locale.h>
#include <limits.h>
#include <paths.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "setlocale_local.h"
const char *_PathLocale = NULL;
static _locale_set_t all_categories[_LC_LAST] = {
[LC_ALL ] = &_generic_LC_ALL_setlocale,
[LC_COLLATE ] = &_dummy_LC_COLLATE_setlocale,
[LC_CTYPE ] = &_citrus_LC_CTYPE_setlocale,
[LC_MONETARY] = &_citrus_LC_MONETARY_setlocale,
[LC_NUMERIC ] = &_citrus_LC_NUMERIC_setlocale,
[LC_TIME ] = &_citrus_LC_TIME_setlocale,
[LC_MESSAGES] = &_citrus_LC_MESSAGES_setlocale,
};
_locale_set_t
_find_category(int category)
{
if (category >= LC_ALL && category < _LC_LAST)
return all_categories[category];
return NULL;
}
const char *
_get_locale_env(const char *category)
{
const char *name;
/* 1. check LC_ALL */
name = (const char *)getenv("LC_ALL");
if (name == NULL || *name == '\0') {
/* 2. check LC_* */
name = (const char *)getenv(category);
if (name == NULL || *name == '\0') {
/* 3. check LANG */
name = getenv("LANG");
}
}
if (name == NULL || *name == '\0' || strchr(name, '/'))
/* 4. if none is set, fall to "C" */
name = _C_LOCALE;
return name;
}
char *
__setlocale(int category, const char *name)
{
_locale_set_t sl;
struct _locale_impl_t *impl;
sl = _find_category(category);
if (sl == NULL)
return NULL;
if (issetugid() || ((_PathLocale == NULL &&
(_PathLocale = getenv("PATH_LOCALE")) == NULL) ||
*_PathLocale == '\0'))
_PathLocale = _PATH_LOCALE;
impl = *_current_locale();
return __UNCONST((*sl)(name, impl));
}
char *
setlocale(int category, const char *locale)
{
/* locale may be NULL */
__mb_len_max_runtime = MB_LEN_MAX;
return __setlocale(category, locale);
}
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#if defined(__minix) && defined(__weak_alias)
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__weak_alias(setlocale, __setlocale50)
#endif