2 * Copyright (c) 2002-2004 Tim J. Robbins. All rights reserved.
4 * The Regents of the University of California. All rights reserved.
6 * This code is derived from software contributed to Berkeley by
7 * Paul Borman at Krystal Technologies.
9 * Copyright (c) 2011 The FreeBSD Foundation
10 * All rights reserved.
11 * Portions of this software were developed by David Chisnall
12 * under sponsorship from the FreeBSD Foundation.
14 * Redistribution and use in source and binary forms, with or without
15 * modification, are permitted provided that the following conditions
17 * 1. Redistributions of source code must retain the above copyright
18 * notice, this list of conditions and the following disclaimer.
19 * 2. Redistributions in binary form must reproduce the above copyright
20 * notice, this list of conditions and the following disclaimer in the
21 * documentation and/or other materials provided with the distribution.
22 * 4. Neither the name of the University nor the names of its contributors
23 * may be used to endorse or promote products derived from this software
24 * without specific prior written permission.
26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
39 #if defined(LIBC_SCCS) && !defined(lint)
40 static char sccsid[] = "@(#)none.c 8.1 (Berkeley) 6/4/93";
41 #endif /* LIBC_SCCS and not lint */
42 #include <sys/cdefs.h>
43 __FBSDID("$FreeBSD$");
55 static size_t _none_mbrtowc(wchar_t * __restrict, const char * __restrict,
56 size_t, mbstate_t * __restrict);
57 static int _none_mbsinit(const mbstate_t *);
58 static size_t _none_mbsnrtowcs(wchar_t * __restrict dst,
59 const char ** __restrict src, size_t nms, size_t len,
60 mbstate_t * __restrict ps __unused);
61 static size_t _none_wcrtomb(char * __restrict, wchar_t,
62 mbstate_t * __restrict);
63 static size_t _none_wcsnrtombs(char * __restrict, const wchar_t ** __restrict,
64 size_t, size_t, mbstate_t * __restrict);
69 int __mb_sb_limit = 256; /* Expected to be <= _CACHED_RUNES */
72 _none_init(struct xlocale_ctype *l, _RuneLocale *rl)
75 l->__mbrtowc = _none_mbrtowc;
76 l->__mbsinit = _none_mbsinit;
77 l->__mbsnrtowcs = _none_mbsnrtowcs;
78 l->__wcrtomb = _none_wcrtomb;
79 l->__wcsnrtombs = _none_wcsnrtombs;
82 l->__mb_sb_limit = 256;
87 _none_mbsinit(const mbstate_t *ps __unused)
91 * Encoding is not state dependent - we are always in the
98 _none_mbrtowc(wchar_t * __restrict pwc, const char * __restrict s, size_t n,
99 mbstate_t * __restrict ps __unused)
103 /* Reset to initial shift state (no-op) */
106 /* Incomplete multibyte sequence */
109 *pwc = (unsigned char)*s;
110 return (*s == '\0' ? 0 : 1);
114 _none_wcrtomb(char * __restrict s, wchar_t wc,
115 mbstate_t * __restrict ps __unused)
119 /* Reset to initial shift state (no-op) */
121 if (wc < 0 || wc > UCHAR_MAX) {
125 *s = (unsigned char)wc;
130 _none_mbsnrtowcs(wchar_t * __restrict dst, const char ** __restrict src,
131 size_t nms, size_t len, mbstate_t * __restrict ps __unused)
137 s = memchr(*src, '\0', nms);
138 return (s != NULL ? s - *src : nms);
143 while (len-- > 0 && nms-- > 0) {
144 if ((*dst++ = (unsigned char)*s++) == L'\0') {
155 _none_wcsnrtombs(char * __restrict dst, const wchar_t ** __restrict src,
156 size_t nwc, size_t len, mbstate_t * __restrict ps __unused)
162 for (s = *src; nwc > 0 && *s != L'\0'; s++, nwc--) {
163 if (*s < 0 || *s > UCHAR_MAX) {
173 while (len-- > 0 && nwc-- > 0) {
174 if (*s < 0 || *s > UCHAR_MAX) {
179 if ((*dst++ = *s++) == '\0') {
191 size_t (*__mbrtowc)(wchar_t * __restrict, const char * __restrict, size_t,
192 mbstate_t * __restrict) = _none_mbrtowc;
193 int (*__mbsinit)(const mbstate_t *) = _none_mbsinit;
194 size_t (*__mbsnrtowcs)(wchar_t * __restrict, const char ** __restrict,
195 size_t, size_t, mbstate_t * __restrict) = _none_mbsnrtowcs;
196 size_t (*__wcrtomb)(char * __restrict, wchar_t, mbstate_t * __restrict) =
198 size_t (*__wcsnrtombs)(char * __restrict, const wchar_t ** __restrict,
199 size_t, size_t, mbstate_t * __restrict) = _none_wcsnrtombs;
201 struct xlocale_ctype __xlocale_global_ctype = {
203 (_RuneLocale*)&_DefaultRuneLocale,
209 1, /* __mb_cur_max, */
210 256 /* __mb_sb_limit */
213 const struct xlocale_ctype __xlocale_C_ctype = {
215 (_RuneLocale*)&_DefaultRuneLocale,
221 1, /* __mb_cur_max, */
222 256 /* __mb_sb_limit */