1: /* Copyright (C) 1998 Free Software Foundation, Inc.
    2:    This file is part of the GNU C Library.
    3:    Contributed by Zack Weinberg <zack@rabi.phys.columbia.edu>, 1998.
    4: 
    5:    The GNU C Library is free software; you can redistribute it and/or
    6:    modify it under the terms of the GNU Lesser General Public
    7:    License as published by the Free Software Foundation; either
    8:    version 2.1 of the License, or (at your option) any later version.
    9: 
   10:    The GNU C Library is distributed in the hope that it will be useful,
   11:    but WITHOUT ANY WARRANTY; without even the implied warranty of
   12:    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   13:    Lesser General Public License for more details.
   14: 
   15:    You should have received a copy of the GNU Lesser General Public
   16:    License along with the GNU C Library; if not, write to the Free
   17:    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   18:    02111-1307 USA.  */
   19: 
   20: #include <stdlib.h>
   21: #include <errno.h>
   22: 
   23: /* Given a fd on a master pseudoterminal, clear a kernel lock so that
   24:    the slave can be opened.  This is to avoid a race between opening the
   25:    master and calling grantpt() to take possession of the slave. */
   26: int
   27: unlockpt (fd)
   28:      int fd __attribute__ ((unused));
   29: {
   30:   __set_errno (ENOSYS);
   31:   return -1;
   32: }
   33: 
   34: stub_warning (unlockpt)
   35: #include <stub-tag.h>