17f3654a64
- add fputwc, fgetwc, fwide and related functions. - add hooks needed to maintain the orientation of file stream.
88 lines
2.3 KiB
C
88 lines
2.3 KiB
C
/* $NetBSD: fputwc.c,v 1.1 2001/12/07 11:47:42 yamt 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 <assert.h>
|
|
#include <errno.h>
|
|
#include <limits.h>
|
|
#include <stdio.h>
|
|
#include <wchar.h>
|
|
#include "local.h"
|
|
#include "fvwrite.h"
|
|
#include "reentrant.h"
|
|
|
|
wint_t
|
|
fputwc(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;
|
|
|
|
_DIAGASSERT(fp != NULL);
|
|
|
|
/* LINTED we don't play with buf */
|
|
iov.iov_base = (void *)buf;
|
|
uio.uio_iov = &iov;
|
|
uio.uio_iovcnt = 1;
|
|
|
|
FLOCKFILE(fp);
|
|
_SET_ORIENTATION(fp, 1);
|
|
wcio = WCIO_GET(fp);
|
|
if (wcio == 0) {
|
|
FUNLOCKFILE(fp);
|
|
errno = ENOMEM;
|
|
return WEOF;
|
|
}
|
|
|
|
wcio->wcio_ungetwc_inbuf = 0;
|
|
st = &wcio->wcio_mbstate_out;
|
|
|
|
size = wcrtomb(buf, wc, st);
|
|
if (size == (size_t)-1) {
|
|
FUNLOCKFILE(fp);
|
|
errno = EILSEQ;
|
|
return WEOF;
|
|
}
|
|
|
|
_DIAGASSERT(size != 0);
|
|
|
|
uio.uio_resid = iov.iov_len = size;
|
|
if (__sfvwrite(fp, &uio)) {
|
|
FUNLOCKFILE(fp);
|
|
return WEOF;
|
|
}
|
|
|
|
FUNLOCKFILE(fp);
|
|
|
|
return (wint_t)wc;
|
|
}
|