| /* Copyright (C) 1998-2018 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| Contributed by Zack Weinberg <zack@rabi.phys.columbia.edu>, 1998. |
| |
| 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 <stdlib.h> |
| #include <errno.h> |
| |
| /* Given a fd on a master pseudoterminal, clear a kernel lock so that |
| the slave can be opened. This is to avoid a race between opening the |
| master and calling grantpt() to take possession of the slave. */ |
| int |
| unlockpt (int fd __attribute__ ((unused))) |
| { |
| __set_errno (ENOSYS); |
| return -1; |
| } |
| |
| stub_warning (unlockpt) |
