96 lines
2.4 KiB
C
96 lines
2.4 KiB
C
/* $NetBSD: fputwc.c,v 1.3 2003/03/07 07:11:37 tshiozak Exp $ */
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/*-
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* Copyright (c)2001 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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* $Citrus$
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*/
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#include <assert.h>
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#include <errno.h>
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#include <limits.h>
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#include <stdio.h>
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#include <wchar.h>
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#include "reentrant.h"
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#include "local.h"
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#include "fvwrite.h"
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wint_t
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__fputwc_unlock(wchar_t wc, FILE *fp)
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{
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struct wchar_io_data *wcio;
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mbstate_t *st;
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size_t size;
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char buf[MB_LEN_MAX];
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struct __suio uio;
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struct __siov iov;
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_DIAGASSERT(fp != NULL);
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/* LINTED we don't play with buf */
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iov.iov_base = (void *)buf;
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uio.uio_iov = &iov;
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uio.uio_iovcnt = 1;
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_SET_ORIENTATION(fp, 1);
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wcio = WCIO_GET(fp);
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if (wcio == 0) {
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errno = ENOMEM;
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return WEOF;
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}
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wcio->wcio_ungetwc_inbuf = 0;
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st = &wcio->wcio_mbstate_out;
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size = wcrtomb(buf, wc, st);
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if (size == (size_t)-1) {
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errno = EILSEQ;
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return WEOF;
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}
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_DIAGASSERT(size != 0);
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uio.uio_resid = iov.iov_len = size;
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if (__sfvwrite(fp, &uio)) {
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return WEOF;
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}
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return (wint_t)wc;
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}
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wint_t
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fputwc(wchar_t wc, FILE *fp)
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{
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wint_t r;
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_DIAGASSERT(fp != NULL);
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FLOCKFILE(fp);
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r = __fputwc_unlock(wc, fp);
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FUNLOCKFILE(fp);
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return (r);
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}
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