1: /* Copyright (C) 2004 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: #include <stdlib.h>
   20: 
   21: /* Return 1 if the whole area PTR .. PTR+SIZE is not writable.
   22:    Return -1 if it is writable.  */
   23: 
   24: int
   25: __readonly_area (const void *ptr, size_t size)
   26: {
   27:   /* We cannot determine in general whether memory is writable or not.
   28:      This must be handled in a system-dependent manner.  to not
   29:      unconditionally break code we need to return here a positive
   30:      answer.  This disables this security measure but that is the
   31:      price people have to pay for using systems without a real
   32:      implementation of this interface.  */
   33:   return 1;
   34: }