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/*-
* 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 <stdio.h>
#include <wchar.h>
#include "un-namespace.h"
#include "libc_private.h"
#include "local.h"
#include "xlocale_private.h"
wchar_t *
fgetwln_l(FILE * __restrict fp, size_t *lenp, locale_t locale)
{
wint_t wc;
size_t len;
FIX_LOCALE(locale);
FLOCKFILE(fp);
ORIENT(fp, 1);
len = 0;
while ((wc = __fgetwc(fp, locale)) != WEOF) {
#define GROW 512
if (len * sizeof(wchar_t) >= fp->_lb._size &&
__slbexpand(fp, (len + GROW) * sizeof(wchar_t)))
goto error;
*((wchar_t *)fp->_lb._base + len++) = wc;
if (wc == L'\n')
break;
}
if (len == 0)
goto error;
FUNLOCKFILE(fp);
*lenp = len;
return ((wchar_t *)fp->_lb._base);
error:
FUNLOCKFILE(fp);
*lenp = 0;
return (NULL);
}
wchar_t *
fgetwln(FILE * __restrict fp, size_t *lenp)
{
return fgetwln_l(fp, lenp, __get_locale());
}
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