2 * SPDX-License-Identifier: BSD-3-Clause
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("$FreeBSD$");
54 static size_t _ascii_mbrtowc(wchar_t * __restrict, const char * __restrict,
55 size_t, mbstate_t * __restrict);
56 static int _ascii_mbsinit(const mbstate_t *);
57 static size_t _ascii_mbsnrtowcs(wchar_t * __restrict dst,
58 const char ** __restrict src, size_t nms, size_t len,
59 mbstate_t * __restrict ps __unused);
60 static size_t _ascii_wcrtomb(char * __restrict, wchar_t,
61 mbstate_t * __restrict);
62 static size_t _ascii_wcsnrtombs(char * __restrict, const wchar_t ** __restrict,
63 size_t, size_t, mbstate_t * __restrict);
66 _ascii_init(struct xlocale_ctype *l,_RuneLocale *rl)
69 l->__mbrtowc = _ascii_mbrtowc;
70 l->__mbsinit = _ascii_mbsinit;
71 l->__mbsnrtowcs = _ascii_mbsnrtowcs;
72 l->__wcrtomb = _ascii_wcrtomb;
73 l->__wcsnrtombs = _ascii_wcsnrtombs;
76 l->__mb_sb_limit = 128;
81 _ascii_mbsinit(const mbstate_t *ps __unused)
85 * Encoding is not state dependent - we are always in the
92 _ascii_mbrtowc(wchar_t * __restrict pwc, const char * __restrict s, size_t n,
93 mbstate_t * __restrict ps __unused)
97 /* Reset to initial shift state (no-op) */
100 /* Incomplete multibyte sequence */
107 *pwc = (unsigned char)*s;
108 return (*s == '\0' ? 0 : 1);
112 _ascii_wcrtomb(char * __restrict s, wchar_t wc,
113 mbstate_t * __restrict ps __unused)
117 /* Reset to initial shift state (no-op) */
119 if (wc < 0 || wc > 127) {
123 *s = (unsigned char)wc;
128 _ascii_mbsnrtowcs(wchar_t * __restrict dst, const char ** __restrict src,
129 size_t nms, size_t len, mbstate_t * __restrict ps __unused)
135 for (s = *src; nms > 0 && *s != '\0'; s++, nms--) {
146 while (len-- > 0 && nms-- > 0) {
152 if ((*dst++ = (unsigned char)*s++) == L'\0') {
163 _ascii_wcsnrtombs(char * __restrict dst, const wchar_t ** __restrict src,
164 size_t nwc, size_t len, mbstate_t * __restrict ps __unused)
170 for (s = *src; nwc > 0 && *s != L'\0'; s++, nwc--) {
171 if (*s < 0 || *s > 127) {
181 while (len-- > 0 && nwc-- > 0) {
182 if (*s < 0 || *s > 127) {
187 if ((*dst++ = *s++) == '\0') {