Fix ldbl-128ibm iscanonical for -mlong-double-64.
[glibc.git] / login / unlockpt.c
blob695cef913afd4af30e8b1d7df4ce7a494dff6d76
1 /* Copyright (C) 1998-2016 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.
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.
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.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <http://www.gnu.org/licenses/>. */
19 #include <stdlib.h>
20 #include <errno.h>
22 /* Given a fd on a master pseudoterminal, clear a kernel lock so that
23 the slave can be opened. This is to avoid a race between opening the
24 master and calling grantpt() to take possession of the slave. */
25 int
26 unlockpt (int fd __attribute__ ((unused)))
28 __set_errno (ENOSYS);
29 return -1;
32 stub_warning (unlockpt)