111 lines
3 KiB
C
111 lines
3 KiB
C
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/* $NetBSD: citrus_ctype_fallback.c,v 1.2 2003/06/27 14:52:25 yamt Exp $ */
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/*-
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* Copyright (c)2003 Citrus Project,
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* All rights reserved.
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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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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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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#include <sys/cdefs.h>
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#if defined(LIBC_SCCS) && !defined(lint)
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__RCSID("$NetBSD: citrus_ctype_fallback.c,v 1.2 2003/06/27 14:52:25 yamt Exp $");
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#endif /* LIBC_SCCS and not lint */
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#include "namespace.h"
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#include <sys/types.h>
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#include <assert.h>
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#include <wchar.h>
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#include <stdio.h>
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#include <string.h>
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#include <limits.h>
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#include "citrus_module.h"
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#include "citrus_ctype.h"
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#include "citrus_ctype_fallback.h"
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/*
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* for ABI version >= 0x00000002
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*/
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int
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_citrus_ctype_btowc_fallback(_citrus_ctype_rec_t * __restrict cc,
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int c, wint_t * __restrict wcresult)
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{
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char mb;
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/*
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* what we need is _PRIVSIZE
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* and we know that it's smaller than sizeof(mbstate_t).
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*/
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char pspriv[sizeof(mbstate_t)];
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wchar_t wc;
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size_t nr;
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int err;
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_DIAGASSERT(cc != NULL && cc->cc_closure != NULL);
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if (c == EOF) {
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*wcresult = WEOF;
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return 0;
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}
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memset(&pspriv, 0, sizeof(pspriv));
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mb = (char)(unsigned)c;
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err = _citrus_ctype_mbrtowc(cc, &wc, &mb, 1, (void *)&pspriv, &nr);
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if (!err && (nr == 0 || nr == 1))
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*wcresult = wc;
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else
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*wcresult = WEOF;
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return 0;
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}
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int
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_citrus_ctype_wctob_fallback(_citrus_ctype_rec_t * __restrict cc,
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wint_t wc, int * __restrict cresult)
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{
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/*
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* what we need is _PRIVSIZE
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* and we know that it's smaller than sizeof(mbstate_t).
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*/
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char pspriv[sizeof(mbstate_t)];
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char buf[MB_LEN_MAX];
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size_t nr;
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int err;
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_DIAGASSERT(cc != NULL && cc->cc_closure != NULL);
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if (wc == WEOF) {
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*cresult = EOF;
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return 0;
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}
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memset(&pspriv, 0, sizeof(pspriv));
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err = _citrus_ctype_wcrtomb(cc, buf, (wchar_t)wc, (void *)&pspriv, &nr);
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if (!err && nr == 1)
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*cresult = buf[0];
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else
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*cresult = EOF;
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return 0;
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}
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