0f6ef690b3
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)
113 lines
3.1 KiB
C
113 lines
3.1 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 <stdio.h>
|
|
#include <string.h>
|
|
#include <wchar.h>
|
|
#include "un-namespace.h"
|
|
#include "libc_private.h"
|
|
#include "local.h"
|
|
#include "mblocal.h"
|
|
|
|
wchar_t *
|
|
fgetws_l(wchar_t * __restrict ws, int n, FILE * __restrict fp, locale_t locale)
|
|
{
|
|
wchar_t *wsp;
|
|
size_t nconv;
|
|
const char *src;
|
|
unsigned char *nl;
|
|
FIX_LOCALE(locale);
|
|
struct xlocale_ctype *l = XLOCALE_CTYPE(locale);
|
|
|
|
FLOCKFILE(fp);
|
|
ORIENT(fp, 1);
|
|
|
|
if (n <= 0) {
|
|
errno = EINVAL;
|
|
goto error;
|
|
}
|
|
|
|
if (fp->_r <= 0 && __srefill(fp))
|
|
/* EOF */
|
|
goto error;
|
|
wsp = ws;
|
|
do {
|
|
src = fp->_p;
|
|
nl = memchr(fp->_p, '\n', fp->_r);
|
|
nconv = l->__mbsnrtowcs(wsp, &src,
|
|
nl != NULL ? (nl - fp->_p + 1) : fp->_r,
|
|
n - 1, &fp->_mbstate);
|
|
if (nconv == (size_t)-1)
|
|
/* Conversion error */
|
|
goto error;
|
|
if (src == NULL) {
|
|
/*
|
|
* We hit a null byte. Increment the character count,
|
|
* since mbsnrtowcs()'s return value doesn't include
|
|
* the terminating null, then resume conversion
|
|
* after the null.
|
|
*/
|
|
nconv++;
|
|
src = memchr(fp->_p, '\0', fp->_r);
|
|
src++;
|
|
}
|
|
fp->_r -= (unsigned char *)src - fp->_p;
|
|
fp->_p = (unsigned char *)src;
|
|
n -= nconv;
|
|
wsp += nconv;
|
|
} while (wsp[-1] != L'\n' && n > 1 && (fp->_r > 0 ||
|
|
__srefill(fp) == 0));
|
|
if (wsp == ws)
|
|
/* EOF */
|
|
goto error;
|
|
if (!l->__mbsinit(&fp->_mbstate))
|
|
/* Incomplete character */
|
|
goto error;
|
|
*wsp = L'\0';
|
|
FUNLOCKFILE(fp);
|
|
|
|
return (ws);
|
|
|
|
error:
|
|
FUNLOCKFILE(fp);
|
|
return (NULL);
|
|
}
|
|
wchar_t *
|
|
fgetws(wchar_t * __restrict ws, int n, FILE * __restrict fp)
|
|
{
|
|
return fgetws_l(ws, n, fp, __get_locale());
|
|
}
|