freebsd-dev/lib/libc/locale/mblocal.h
Yuri Pankov 9eb7d595e1 Reset persistent mbstates when rune locale encoding changes.
This was shown to be a problem by side effect of now-enabled test case,
which was going through C, en_US.UTF-8, ja_JP.SJIS, and ja_JP.eucJP,
and failing eventually as data in mbrtowc's mbstate, that was
perfectly correct for en_US.UTF-8 was treated as incorrect for
ja_JP.SJIS, failing the entire test case.

This makes the persistent mbstates to be per ctype-component,
and not per-locale so we could easily reset the mbstates when
only LC_CTYPE is changed.

Reviewed by:	bapt, pfg
Approved by:	kib (mentor, implicit)
Differential Revision:	https://reviews.freebsd.org/D17796
2018-11-09 03:32:53 +00:00

121 lines
4.9 KiB
C

/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright 2013 Garrett D'Amore <garrett@damore.org>
* Copyright 2011 Nexenta Systems, Inc. All rights reserved.
* Copyright (c) 2004 Tim J. Robbins.
* All rights reserved.
*
* 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.
*
* 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.
*
* $FreeBSD$
*/
#ifndef _MBLOCAL_H_
#define _MBLOCAL_H_
#include <runetype.h>
#include "xlocale_private.h"
#define SS2 0x008e
#define SS3 0x008f
/*
* Conversion function pointers for current encoding.
*/
struct xlocale_ctype {
struct xlocale_component header;
_RuneLocale *runes;
size_t (*__mbrtowc)(wchar_t * __restrict, const char * __restrict,
size_t, mbstate_t * __restrict);
int (*__mbsinit)(const mbstate_t *);
size_t (*__mbsnrtowcs)(wchar_t * __restrict, const char ** __restrict,
size_t, size_t, mbstate_t * __restrict);
size_t (*__wcrtomb)(char * __restrict, wchar_t, mbstate_t * __restrict);
size_t (*__wcsnrtombs)(char * __restrict, const wchar_t ** __restrict,
size_t, size_t, mbstate_t * __restrict);
int __mb_cur_max;
int __mb_sb_limit;
/** Persistent state used by mblen() calls. */
__mbstate_t mblen;
/** Persistent state used by mbrlen() calls. */
__mbstate_t mbrlen;
/** Persistent state used by mbrtoc16() calls. */
__mbstate_t mbrtoc16;
/** Persistent state used by mbrtoc32() calls. */
__mbstate_t mbrtoc32;
/** Persistent state used by mbrtowc() calls. */
__mbstate_t mbrtowc;
/** Persistent state used by mbsnrtowcs() calls. */
__mbstate_t mbsnrtowcs;
/** Persistent state used by mbsrtowcs() calls. */
__mbstate_t mbsrtowcs;
/** Persistent state used by mbtowc() calls. */
__mbstate_t mbtowc;
/** Persistent state used by c16rtomb() calls. */
__mbstate_t c16rtomb;
/** Persistent state used by c32rtomb() calls. */
__mbstate_t c32rtomb;
/** Persistent state used by wcrtomb() calls. */
__mbstate_t wcrtomb;
/** Persistent state used by wcsnrtombs() calls. */
__mbstate_t wcsnrtombs;
/** Persistent state used by wcsrtombs() calls. */
__mbstate_t wcsrtombs;
/** Persistent state used by wctomb() calls. */
__mbstate_t wctomb;
};
#define XLOCALE_CTYPE(x) ((struct xlocale_ctype*)(x)->components[XLC_CTYPE])
extern struct xlocale_ctype __xlocale_global_ctype;
/*
* Rune initialization function prototypes.
*/
int _none_init(struct xlocale_ctype *, _RuneLocale *) __hidden;
int _UTF8_init(struct xlocale_ctype *, _RuneLocale *) __hidden;
int _EUC_CN_init(struct xlocale_ctype *, _RuneLocale *) __hidden;
int _EUC_JP_init(struct xlocale_ctype *, _RuneLocale *) __hidden;
int _EUC_KR_init(struct xlocale_ctype *, _RuneLocale *) __hidden;
int _EUC_TW_init(struct xlocale_ctype *, _RuneLocale *) __hidden;
int _GB18030_init(struct xlocale_ctype *, _RuneLocale *) __hidden;
int _GB2312_init(struct xlocale_ctype *, _RuneLocale *) __hidden;
int _GBK_init(struct xlocale_ctype *, _RuneLocale *) __hidden;
int _BIG5_init(struct xlocale_ctype *, _RuneLocale *) __hidden;
int _MSKanji_init(struct xlocale_ctype *, _RuneLocale *) __hidden;
int _ascii_init(struct xlocale_ctype *, _RuneLocale *) __hidden;
typedef size_t (*mbrtowc_pfn_t)(wchar_t * __restrict,
const char * __restrict, size_t, mbstate_t * __restrict);
typedef size_t (*wcrtomb_pfn_t)(char * __restrict, wchar_t,
mbstate_t * __restrict);
size_t __mbsnrtowcs_std(wchar_t * __restrict, const char ** __restrict,
size_t, size_t, mbstate_t * __restrict, mbrtowc_pfn_t);
size_t __wcsnrtombs_std(char * __restrict, const wchar_t ** __restrict,
size_t, size_t, mbstate_t * __restrict, wcrtomb_pfn_t);
#endif /* _MBLOCAL_H_ */