mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-28 15:51:07 +00:00
688903eb3e
* All files with FSF copyright notices: Update copyright dates using scripts/update-copyrights. * locale/programs/charmap-kw.h: Regenerated. * locale/programs/locfile-kw.h: Likewise.
100 lines
2.4 KiB
C
100 lines
2.4 KiB
C
/* Copyright (C) 2005-2018 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
Contributed by Ulrich Drepper <drepper@gnu.org>.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
#include <stdarg.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <wchar.h>
|
|
#include <libioP.h>
|
|
|
|
static int
|
|
locked_vfxprintf (FILE *fp, const char *fmt, va_list ap)
|
|
{
|
|
if (_IO_fwide (fp, 0) <= 0)
|
|
return _IO_vfprintf (fp, fmt, ap);
|
|
|
|
/* We must convert the narrow format string to a wide one.
|
|
Each byte can produce at most one wide character. */
|
|
wchar_t *wfmt;
|
|
mbstate_t mbstate;
|
|
int res;
|
|
int used_malloc = 0;
|
|
size_t len = strlen (fmt) + 1;
|
|
|
|
if (__glibc_unlikely (len > SIZE_MAX / sizeof (wchar_t)))
|
|
{
|
|
__set_errno (EOVERFLOW);
|
|
return -1;
|
|
}
|
|
if (__libc_use_alloca (len * sizeof (wchar_t)))
|
|
wfmt = alloca (len * sizeof (wchar_t));
|
|
else if ((wfmt = malloc (len * sizeof (wchar_t))) == NULL)
|
|
return -1;
|
|
else
|
|
used_malloc = 1;
|
|
|
|
memset (&mbstate, 0, sizeof mbstate);
|
|
res = __mbsrtowcs (wfmt, &fmt, len, &mbstate);
|
|
|
|
if (res != -1)
|
|
res = _IO_vfwprintf (fp, wfmt, ap);
|
|
|
|
if (used_malloc)
|
|
free (wfmt);
|
|
|
|
return res;
|
|
}
|
|
|
|
int
|
|
__fxprintf (FILE *fp, const char *fmt, ...)
|
|
{
|
|
if (fp == NULL)
|
|
fp = stderr;
|
|
|
|
va_list ap;
|
|
va_start (ap, fmt);
|
|
_IO_flockfile (fp);
|
|
|
|
int res = locked_vfxprintf (fp, fmt, ap);
|
|
|
|
_IO_funlockfile (fp);
|
|
va_end (ap);
|
|
return res;
|
|
}
|
|
|
|
int
|
|
__fxprintf_nocancel (FILE *fp, const char *fmt, ...)
|
|
{
|
|
if (fp == NULL)
|
|
fp = stderr;
|
|
|
|
va_list ap;
|
|
va_start (ap, fmt);
|
|
_IO_flockfile (fp);
|
|
int save_flags2 = ((_IO_FILE *)fp)->_flags2;
|
|
((_IO_FILE *)fp)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
|
|
|
|
int res = locked_vfxprintf (fp, fmt, ap);
|
|
|
|
((_IO_FILE *)fp)->_flags2 = save_flags2;
|
|
_IO_funlockfile (fp);
|
|
va_end (ap);
|
|
return res;
|
|
}
|