stdio-common/isoc99_vscanf.c

   1 /* Copyright (C) 1991-2017 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, see
  16    <http://www.gnu.org/licenses/>.  */
  17
  18 #include <libioP.h>
  19 #include <stdio.h>
  20
  21 /* Read formatted input from STDIN according to the format string FORMAT.  */
  22 /* VARARGS2 */
  23 int
  24 __isoc99_vscanf (const char *format, _IO_va_list args)
  25 {
  26   int done;
  27
  28   _IO_acquire_lock_clear_flags2 (stdin);
  29   stdin->_flags2 |= _IO_FLAGS2_SCANF_STD;
  30   done = _IO_vfscanf (stdin, format, args, NULL);
  31   _IO_release_lock (stdin);
  32   return done;
  33 }