glibc/stdio-common/isoc99_fscanf.c

40 lines
1.2 KiB
C

/* Copyright (C) 1991-2016 Free Software Foundation, Inc.
This file is part of the GNU C Library.
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 <libioP.h>
#include <stdarg.h>
#include <stdio.h>
/* Read formatted input from STREAM according to the format string FORMAT. */
/* VARARGS2 */
int
__isoc99_fscanf (FILE *stream, const char *format, ...)
{
va_list arg;
int done;
_IO_acquire_lock_clear_flags2 (stream);
stream->_flags2 |= _IO_FLAGS2_SCANF_STD;
va_start (arg, format);
done = _IO_vfscanf (stream, format, arg, NULL);
va_end (arg);
_IO_release_lock (stream);
return done;
}