1: /* Copyright (C) 1999, 2000, 2003 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, write to the Free
   16:    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   17:    02111-1307 USA.
   18: 
   19:    As a special exception, if you link the code in this file with
   20:    files compiled with a GNU compiler to produce an executable,
   21:    that does not cause the resulting executable to be covered by
   22:    the GNU Lesser General Public License.  This exception does not
   23:    however invalidate any other reasons why the executable file
   24:    might be covered by the GNU Lesser General Public License.
   25:    This exception applies to code released by its copyright holders
   26:    in files containing the exception.  */
   27: 
   28: #include <libioP.h>
   29: #include <stdio.h>
   30: #include <wchar.h>
   31: 
   32: int
   33: fwide (fp, mode)
   34:      _IO_FILE *fp;
   35:      int mode;
   36: {
   37:   int result;
   38: 
   39:   /* Normalize the value.  */
   40:   mode = mode < 0 ? -1 : (mode == 0 ? 0 : 1);
   41: 
   42:   if (mode == 0 || fp->_mode != 0)
   43:     /* The caller simply wants to know about the current orientation
   44:        or the orientation already has been determined.  */
   45:     return fp->_mode;
   46: 
   47:   _IO_acquire_lock (fp);
   48:   result = _IO_fwide (fp, mode);
   49:   _IO_release_lock (fp);
   50: 
   51:   return result;
   52: }