freebsd-skq/lib/libc/stdio/fputws.c
David Chisnall 3c87aa1d3d Implement xlocale APIs from Darwin, mainly for use by libc++. This adds a
load of _l suffixed versions of various standard library functions that use
the global locale, making them take an explicit locale parameter.  Also
adds support for per-thread locales.  This work was funded by the FreeBSD
Foundation.

Please test any code you have that uses the C standard locale functions!

Reviewed by:    das (gdtoa changes)
Approved by:    dim (mentor)
2011-11-20 14:45:42 +00:00

87 lines
2.6 KiB
C

/*-
* Copyright (c) 2002-2004 Tim J. Robbins.
* All rights reserved.
*
* Copyright (c) 2011 The FreeBSD Foundation
* All rights reserved.
* Portions of this software were developed by David Chisnall
* under sponsorship from the FreeBSD Foundation.
*
* 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.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include "namespace.h"
#include <errno.h>
#include <limits.h>
#include <stdio.h>
#include <wchar.h>
#include "un-namespace.h"
#include "fvwrite.h"
#include "libc_private.h"
#include "local.h"
#include "mblocal.h"
int
fputws_l(const wchar_t * __restrict ws, FILE * __restrict fp, locale_t locale)
{
size_t nbytes;
char buf[BUFSIZ];
struct __suio uio;
struct __siov iov;
const wchar_t *wsp;
FIX_LOCALE(locale);
struct xlocale_ctype *l = XLOCALE_CTYPE(locale);
FLOCKFILE(fp);
ORIENT(fp, 1);
if (prepwrite(fp) != 0)
goto error;
uio.uio_iov = &iov;
uio.uio_iovcnt = 1;
iov.iov_base = buf;
do {
wsp = ws;
nbytes = l->__wcsnrtombs(buf, &wsp, SIZE_T_MAX, sizeof(buf),
&fp->_mbstate);
if (nbytes == (size_t)-1)
goto error;
iov.iov_len = uio.uio_resid = nbytes;
if (__sfvwrite(fp, &uio) != 0)
goto error;
} while (ws != NULL);
FUNLOCKFILE(fp);
return (0);
error:
FUNLOCKFILE(fp);
return (-1);
}
int
fputws(const wchar_t * __restrict ws, FILE * __restrict fp)
{
return fputws_l(ws, fp, __get_locale());
}