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 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 #include <sys/cdefs.h>
35 __FBSDID("$FreeBSD$");
47 static size_t _ascii_mbrtowc(wchar_t * __restrict, const char * __restrict,
48 size_t, mbstate_t * __restrict);
49 static int _ascii_mbsinit(const mbstate_t *);
50 static size_t _ascii_mbsnrtowcs(wchar_t * __restrict dst,
51 const char ** __restrict src, size_t nms, size_t len,
52 mbstate_t * __restrict ps __unused);
53 static size_t _ascii_wcrtomb(char * __restrict, wchar_t,
54 mbstate_t * __restrict);
55 static size_t _ascii_wcsnrtombs(char * __restrict, const wchar_t ** __restrict,
56 size_t, size_t, mbstate_t * __restrict);
59 _ascii_init(_RuneLocale *rl)
62 __mbrtowc = _ascii_mbrtowc;
63 __mbsinit = _ascii_mbsinit;
64 __mbsnrtowcs = _ascii_mbsnrtowcs;
65 __wcrtomb = _ascii_wcrtomb;
66 __wcsnrtombs = _ascii_wcsnrtombs;
67 _CurrentRuneLocale = rl;
74 _ascii_mbsinit(const mbstate_t *ps __unused)
78 * Encoding is not state dependent - we are always in the
85 _ascii_mbrtowc(wchar_t * __restrict pwc, const char * __restrict s, size_t n,
86 mbstate_t * __restrict ps __unused)
90 /* Reset to initial shift state (no-op) */
93 /* Incomplete multibyte sequence */
100 *pwc = (unsigned char)*s;
101 return (*s == '\0' ? 0 : 1);
105 _ascii_wcrtomb(char * __restrict s, wchar_t wc,
106 mbstate_t * __restrict ps __unused)
110 /* Reset to initial shift state (no-op) */
112 if (wc < 0 || wc > 127) {
116 *s = (unsigned char)wc;
121 _ascii_mbsnrtowcs(wchar_t * __restrict dst, const char ** __restrict src,
122 size_t nms, size_t len, mbstate_t * __restrict ps __unused)
128 for (s = *src; nms > 0 && *s != '\0'; s++, nms--) {
139 while (len-- > 0 && nms-- > 0) {
144 if ((*dst++ = (unsigned char)*s++) == L'\0') {
155 _ascii_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 > 127) {
173 while (len-- > 0 && nwc-- > 0) {
174 if (*s < 0 || *s > 127) {
178 if ((*dst++ = *s++) == '\0') {