117 lines
3.7 KiB
C
117 lines
3.7 KiB
C
/*-
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* Copyright (c) 2002-2004 Tim J. Robbins. All rights reserved.
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* Copyright (c) 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Paul Borman at Krystal Technologies.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#if defined(LIBC_SCCS) && !defined(lint)
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static char sccsid[] = "@(#)none.c 8.1 (Berkeley) 6/4/93";
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#endif /* LIBC_SCCS and not lint */
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <errno.h>
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#include <limits.h>
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#include <runetype.h>
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#include <stddef.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <wchar.h>
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extern size_t (*__mbrtowc)(wchar_t * __restrict, const char * __restrict,
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size_t, mbstate_t * __restrict);
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extern int (*__mbsinit)(const mbstate_t *);
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extern size_t (*__wcrtomb)(char * __restrict, wchar_t, mbstate_t * __restrict);
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int _none_init(_RuneLocale *);
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size_t _none_mbrtowc(wchar_t * __restrict, const char * __restrict, size_t,
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mbstate_t * __restrict);
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int _none_mbsinit(const mbstate_t *);
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size_t _none_wcrtomb(char * __restrict, wchar_t, mbstate_t * __restrict);
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int
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_none_init(_RuneLocale *rl)
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{
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__mbrtowc = _none_mbrtowc;
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__mbsinit = _none_mbsinit;
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__wcrtomb = _none_wcrtomb;
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_CurrentRuneLocale = rl;
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__mb_cur_max = 1;
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return(0);
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}
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int
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_none_mbsinit(const mbstate_t *ps __unused)
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{
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/*
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* Encoding is not state dependent - we are always in the
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* initial state.
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*/
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return (1);
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}
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size_t
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_none_mbrtowc(wchar_t * __restrict pwc, const char * __restrict s, size_t n,
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mbstate_t * __restrict ps __unused)
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{
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if (s == NULL)
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/* Reset to initial shift state (no-op) */
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return (0);
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if (n == 0)
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/* Incomplete multibyte sequence */
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return ((size_t)-2);
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if (pwc != NULL)
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*pwc = (unsigned char)*s;
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return (*s == '\0' ? 0 : 1);
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}
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size_t
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_none_wcrtomb(char * __restrict s, wchar_t wc,
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mbstate_t * __restrict ps __unused)
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{
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if (s == NULL)
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/* Reset to initial shift state (no-op) */
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return (1);
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if (wc < 0 || wc > UCHAR_MAX) {
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errno = EILSEQ;
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return ((size_t)-1);
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}
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*s = (unsigned char)wc;
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return (1);
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}
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