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/* $OpenBSD: fputwc.c,v 1.7 2016/01/26 13:57:02 schwarze Exp $ */
/* $NetBSD: fputwc.c,v 1.3 2003/03/07 07:11:37 tshiozak Exp $ */
/*-
* Copyright (c)2001 Citrus Project,
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Citrus$
*/
#include <errno.h>
#include <limits.h>
#include <stdio.h>
#include <wchar.h>
#include "local.h"
#include "fvwrite.h"
wint_t
__fputwc_unlock(wchar_t wc, FILE *fp)
{
struct wchar_io_data *wcio;
mbstate_t *st;
size_t size;
char buf[MB_LEN_MAX];
struct __suio uio;
struct __siov iov;
iov.iov_base = buf;
uio.uio_iov = &iov;
uio.uio_iovcnt = 1;
_SET_ORIENTATION(fp, 1);
wcio = WCIO_GET(fp);
if (wcio == 0) {
errno = ENOMEM;
return WEOF;
}
wcio->wcio_ungetwc_inbuf = 0;
st = &wcio->wcio_mbstate_out;
size = wcrtomb(buf, wc, st);
if (size == (size_t)-1) {
fp->_flags |= __SERR;
return WEOF;
}
uio.uio_resid = iov.iov_len = size;
if (__sfvwrite(fp, &uio)) {
return WEOF;
}
return (wint_t)wc;
}
wint_t
fputwc(wchar_t wc, FILE *fp)
{
wint_t r;
FLOCKFILE(fp);
r = __fputwc_unlock(wc, fp);
FUNLOCKFILE(fp);
return (r);
}
DEF_STRONG(fputwc);
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