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 #include <sys/cdefs.h>
40 __FBSDID("$FreeBSD$");
52 static size_t _ascii_mbrtowc(wchar_t * __restrict, const char * __restrict,
53 size_t, mbstate_t * __restrict);
54 static int _ascii_mbsinit(const mbstate_t *);
55 static size_t _ascii_mbsnrtowcs(wchar_t * __restrict dst,
56 const char ** __restrict src, size_t nms, size_t len,
57 mbstate_t * __restrict ps __unused);
58 static size_t _ascii_wcrtomb(char * __restrict, wchar_t,
59 mbstate_t * __restrict);
60 static size_t _ascii_wcsnrtombs(char * __restrict, const wchar_t ** __restrict,
61 size_t, size_t, mbstate_t * __restrict);
64 _ascii_init(struct xlocale_ctype *l,_RuneLocale *rl)
67 l->__mbrtowc = _ascii_mbrtowc;
68 l->__mbsinit = _ascii_mbsinit;
69 l->__mbsnrtowcs = _ascii_mbsnrtowcs;
70 l->__wcrtomb = _ascii_wcrtomb;
71 l->__wcsnrtombs = _ascii_wcsnrtombs;
74 l->__mb_sb_limit = 128;
79 _ascii_mbsinit(const mbstate_t *ps __unused)
83 * Encoding is not state dependent - we are always in the
90 _ascii_mbrtowc(wchar_t * __restrict pwc, const char * __restrict s, size_t n,
91 mbstate_t * __restrict ps __unused)
95 /* Reset to initial shift state (no-op) */
98 /* Incomplete multibyte sequence */
105 *pwc = (unsigned char)*s;
106 return (*s == '\0' ? 0 : 1);
110 _ascii_wcrtomb(char * __restrict s, wchar_t wc,
111 mbstate_t * __restrict ps __unused)
115 /* Reset to initial shift state (no-op) */
117 if (wc < 0 || wc > 127) {
121 *s = (unsigned char)wc;
126 _ascii_mbsnrtowcs(wchar_t * __restrict dst, const char ** __restrict src,
127 size_t nms, size_t len, mbstate_t * __restrict ps __unused)
133 for (s = *src; nms > 0 && *s != '\0'; s++, nms--) {
144 while (len-- > 0 && nms-- > 0) {
149 if ((*dst++ = (unsigned char)*s++) == L'\0') {
160 _ascii_wcsnrtombs(char * __restrict dst, const wchar_t ** __restrict src,
161 size_t nwc, size_t len, mbstate_t * __restrict ps __unused)
167 for (s = *src; nwc > 0 && *s != L'\0'; s++, nwc--) {
168 if (*s < 0 || *s > 127) {
178 while (len-- > 0 && nwc-- > 0) {
179 if (*s < 0 || *s > 127) {
183 if ((*dst++ = *s++) == '\0') {