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/*-
* Copyright (c) 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Paul Borman at Krystal Technologies.
*
* Copyright (c) 2011 The FreeBSD Foundation
* All rights reserved.
* Portions of this software were developed by David Chisnall
* under sponsorship from the FreeBSD Foundation.
*
* 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.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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>
__FBSDID("$FreeBSD$");
#define __RUNETYPE_INTERNAL 1
#include <runetype.h>
#include <errno.h>
#include <limits.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <wchar.h>
#include "ldpart.h"
#include "mblocal.h"
#include "setlocale.h"
#undef _CurrentRuneLocale
extern _RuneLocale const *_CurrentRuneLocale;
#ifndef __NO_TLS
/*
* A cached version of the runes for this thread. Used by ctype.h
*/
_Thread_local const _RuneLocale *_ThreadRuneLocale;
#endif
extern int __mb_sb_limit;
extern _RuneLocale *_Read_RuneMagi(FILE *);
static int __setrunelocale(struct xlocale_ctype *l, const char *);
#define __collate_load_error (table->__collate_load_error)
#define __collate_substitute_nontrivial (table->__collate_substitute_nontrivial)
#define __collate_substitute_table_ptr (table->__collate_substitute_table_ptr)
#define __collate_char_pri_table_ptr (table->__collate_char_pri_table_ptr)
#define __collate_chain_pri_table (table->__collate_chain_pri_table)
static void destruct_ctype(void *v)
{
struct xlocale_ctype *l = v;
if (strcmp(l->runes->__encoding, "EUC") == 0)
free(l->runes->__variable);
if (&_DefaultRuneLocale != l->runes)
free(l->runes);
free(l);
}
const _RuneLocale *__getCurrentRuneLocale(void)
{
return XLOCALE_CTYPE(__get_locale())->runes;
}
static int
__setrunelocale(struct xlocale_ctype *l, const char *encoding)
{
FILE *fp;
char name[PATH_MAX];
_RuneLocale *rl;
int saverr, ret;
struct xlocale_ctype saved = *l;
/*
* The "C" and "POSIX" locale are always here.
*/
if (strcmp(encoding, "C") == 0 || strcmp(encoding, "POSIX") == 0) {
(void) _none_init(l, (_RuneLocale*)&_DefaultRuneLocale);
return (0);
}
/* Range checking not needed, encoding length already checked before */
(void) strcpy(name, _PathLocale);
(void) strcat(name, "/");
(void) strcat(name, encoding);
(void) strcat(name, "/LC_CTYPE");
if ((fp = fopen(name, "r")) == NULL)
return (errno == 0 ? ENOENT : errno);
if ((rl = _Read_RuneMagi(fp)) == NULL) {
saverr = (errno == 0 ? EFTYPE : errno);
(void)fclose(fp);
return (saverr);
}
(void)fclose(fp);
l->__mbrtowc = NULL;
l->__mbsinit = NULL;
l->__mbsnrtowcs = __mbsnrtowcs_std;
l->__wcrtomb = NULL;
l->__wcsnrtombs = __wcsnrtombs_std;
rl->__sputrune = NULL;
rl->__sgetrune = NULL;
if (strcmp(rl->__encoding, "NONE") == 0)
ret = _none_init(l, rl);
else if (strcmp(rl->__encoding, "ASCII") == 0)
ret = _ascii_init(l, rl);
else if (strcmp(rl->__encoding, "UTF-8") == 0)
ret = _UTF8_init(l, rl);
else if (strcmp(rl->__encoding, "EUC") == 0)
ret = _EUC_init(l, rl);
else if (strcmp(rl->__encoding, "GB18030") == 0)
ret = _GB18030_init(l, rl);
else if (strcmp(rl->__encoding, "GB2312") == 0)
ret = _GB2312_init(l, rl);
else if (strcmp(rl->__encoding, "GBK") == 0)
ret = _GBK_init(l, rl);
else if (strcmp(rl->__encoding, "BIG5") == 0)
ret = _BIG5_init(l, rl);
else if (strcmp(rl->__encoding, "MSKanji") == 0)
ret = _MSKanji_init(l, rl);
else
ret = EFTYPE;
if (ret == 0) {
/* Free the old runes if it exists. */
/* FIXME: The "EUC" check here is a hideous abstraction violation. */
if ((saved.runes != &_DefaultRuneLocale) && (saved.runes)) {
if (strcmp(saved.runes->__encoding, "EUC") == 0) {
free(saved.runes->__variable);
}
free(saved.runes);
}
} else {
/* Restore the saved version if this failed. */
memcpy(l, &saved, sizeof(struct xlocale_ctype));
free(rl);
}
return (ret);
}
int
__wrap_setrunelocale(const char *locale)
{
int ret = __setrunelocale(&__xlocale_global_ctype, locale);
if (ret != 0) {
errno = ret;
return (_LDP_ERROR);
}
__mb_cur_max = __xlocale_global_ctype.__mb_cur_max;
__mb_sb_limit = __xlocale_global_ctype.__mb_sb_limit;
_CurrentRuneLocale = __xlocale_global_ctype.runes;
return (_LDP_LOADED);
}
#ifndef __NO_TLS
void
__set_thread_rune_locale(locale_t loc) {
if (loc == NULL) {
_ThreadRuneLocale = &_DefaultRuneLocale;
} else {
_ThreadRuneLocale = XLOCALE_CTYPE(loc)->runes;
}
}
#endif
void *
__ctype_load(const char *locale, locale_t unused)
{
struct xlocale_ctype *l = calloc(sizeof(struct xlocale_ctype), 1);
l->header.header.destructor = destruct_ctype;
if (__setrunelocale(l, locale))
{
free(l);
return NULL;
}
return l;
}
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