1e98f88776
__sFILE. This was supposed to be done in 6.0. Some notes: - Where possible I restored the various lines to their pre-__sFILEX state. - Retire INITEXTRA() and just initialize the wchar bits (orientation and mbstate) explicitly instead. The various places that used INITEXTRA didn't need the locking fields or _up initialized. (Some places needed _up to exist and not be off the end of a NULL or garbage pointer, but they didn't require it to be initialized to a specific value.) - For now, stdio.h "knows" that pthread_t is a 'struct pthread *' to avoid namespace pollution of including all the pthread types in stdio.h. Once we remove all the inlines and make __sFILE private it can go back to using pthread_t, etc. - This does not remove any of the inlines currently and does not change any of the public ABI of 'FILE'. MFC after: 1 month Reviewed by: peter
78 lines
2.1 KiB
C
78 lines
2.1 KiB
C
/*-
|
|
* Copyright (c) 2002-2004 Tim J. Robbins.
|
|
* 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.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include "namespace.h"
|
|
#include <errno.h>
|
|
#include <limits.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <wchar.h>
|
|
#include "un-namespace.h"
|
|
#include "libc_private.h"
|
|
#include "local.h"
|
|
#include "mblocal.h"
|
|
|
|
/*
|
|
* Non-MT-safe version.
|
|
*/
|
|
wint_t
|
|
__ungetwc(wint_t wc, FILE *fp)
|
|
{
|
|
char buf[MB_LEN_MAX];
|
|
size_t len;
|
|
|
|
if (wc == WEOF)
|
|
return (WEOF);
|
|
if ((len = __wcrtomb(buf, wc, &fp->_mbstate)) == (size_t)-1) {
|
|
fp->_flags |= __SERR;
|
|
return (WEOF);
|
|
}
|
|
while (len-- != 0)
|
|
if (__ungetc((unsigned char)buf[len], fp) == EOF)
|
|
return (WEOF);
|
|
|
|
return (wc);
|
|
}
|
|
|
|
/*
|
|
* MT-safe version.
|
|
*/
|
|
wint_t
|
|
ungetwc(wint_t wc, FILE *fp)
|
|
{
|
|
wint_t r;
|
|
|
|
FLOCKFILE(fp);
|
|
ORIENT(fp, 1);
|
|
r = __ungetwc(wc, fp);
|
|
FUNLOCKFILE(fp);
|
|
|
|
return (r);
|
|
}
|