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