2 * SPDX-License-Identifier: BSD-3-Clause
4 * Copyright 2013 Garrett D'Amore <garrett@damore.org>
5 * Copyright 2010 Nexenta Systems, Inc. All rights reserved.
6 * Copyright (c) 2002-2004 Tim J. Robbins. All rights reserved.
8 * The Regents of the University of California. All rights reserved.
10 * This code is derived from software contributed to Berkeley by
11 * Paul Borman at Krystal Technologies.
13 * Copyright (c) 2011 The FreeBSD Foundation
14 * All rights reserved.
15 * Portions of this software were developed by David Chisnall
16 * under sponsorship from the FreeBSD Foundation.
18 * Redistribution and use in source and binary forms, with or without
19 * modification, are permitted provided that the following conditions
21 * 1. Redistributions of source code must retain the above copyright
22 * notice, this list of conditions and the following disclaimer.
23 * 2. Redistributions in binary form must reproduce the above copyright
24 * notice, this list of conditions and the following disclaimer in the
25 * documentation and/or other materials provided with the distribution.
26 * 3. Neither the name of the University nor the names of its contributors
27 * may be used to endorse or promote products derived from this software
28 * without specific prior written permission.
30 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
31 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
32 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
33 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
34 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
35 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
36 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
37 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
38 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
39 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
43 #include <sys/cdefs.h>
44 __FBSDID("$FreeBSD$");
46 #include <sys/types.h>
54 extern int __mb_sb_limit;
56 static size_t _GBK_mbrtowc(wchar_t * __restrict, const char * __restrict,
57 size_t, mbstate_t * __restrict);
58 static int _GBK_mbsinit(const mbstate_t *);
59 static size_t _GBK_wcrtomb(char * __restrict, wchar_t,
60 mbstate_t * __restrict);
61 static size_t _GBK_mbsnrtowcs(wchar_t * __restrict,
62 const char ** __restrict, size_t, size_t,
63 mbstate_t * __restrict);
64 static size_t _GBK_wcsnrtombs(char * __restrict,
65 const wchar_t ** __restrict, size_t, size_t,
66 mbstate_t * __restrict);
73 _GBK_init(struct xlocale_ctype *l, _RuneLocale *rl)
76 l->__mbrtowc = _GBK_mbrtowc;
77 l->__wcrtomb = _GBK_wcrtomb;
78 l->__mbsinit = _GBK_mbsinit;
79 l->__mbsnrtowcs = _GBK_mbsnrtowcs;
80 l->__wcsnrtombs = _GBK_wcsnrtombs;
83 l->__mb_sb_limit = 128;
88 _GBK_mbsinit(const mbstate_t *ps)
91 return (ps == NULL || ((const _GBKState *)ps)->ch == 0);
99 return ((c >= 0x81 && c <= 0xfe) ? 2 : 1);
103 _GBK_mbrtowc(wchar_t * __restrict pwc, const char * __restrict s, size_t n,
104 mbstate_t * __restrict ps)
110 gs = (_GBKState *)ps;
112 if ((gs->ch & ~0xFF) != 0) {
113 /* Bad conversion state. */
125 /* Incomplete multibyte sequence */
133 wc = (gs->ch << 8) | (*s & 0xFF);
140 len = (size_t)_gbk_check(*s);
144 /* Incomplete multibyte sequence */
152 wc = (wc << 8) | (*s++ & 0xff);
159 return (wc == L'\0' ? 0 : 1);
164 _GBK_wcrtomb(char * __restrict s, wchar_t wc, mbstate_t * __restrict ps)
168 gs = (_GBKState *)ps;
176 /* Reset to initial shift state (no-op) */
179 *s++ = (wc >> 8) & 0xff;
188 _GBK_mbsnrtowcs(wchar_t * __restrict dst, const char ** __restrict src,
189 size_t nms, size_t len, mbstate_t * __restrict ps)
191 return (__mbsnrtowcs_std(dst, src, nms, len, ps, _GBK_mbrtowc));
195 _GBK_wcsnrtombs(char * __restrict dst, const wchar_t ** __restrict src,
196 size_t nwc, size_t len, mbstate_t * __restrict ps)
198 return (__wcsnrtombs_std(dst, src, nwc, len, ps, _GBK_wcrtomb));