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f7a9f785 | 1 | /* Copyright (C) 1998-2016 Free Software Foundation, Inc. |
ae1025be | 2 | This file is part of the GNU C Library. |
6591c335 | 3 | Contributed by Zack Weinberg <zack@rabi.phys.columbia.edu>, 1998. |
46d7de19 | 4 | |
ae1025be | 5 | The GNU C Library is free software; you can redistribute it and/or |
41bdb6e2 AJ |
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. | |
46d7de19 | 9 | |
ae1025be UD |
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 | |
41bdb6e2 | 13 | Lesser General Public License for more details. |
46d7de19 | 14 | |
41bdb6e2 | 15 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 PE |
16 | License along with the GNU C Library; if not, see |
17 | <http://www.gnu.org/licenses/>. */ | |
46d7de19 | 18 | |
6591c335 UD |
19 | #include <stdlib.h> |
20 | #include <errno.h> | |
46d7de19 | 21 | |
6591c335 UD |
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 | |
80d9be81 | 26 | unlockpt (int fd __attribute__ ((unused))) |
6591c335 UD |
27 | { |
28 | __set_errno (ENOSYS); | |
29 | return -1; | |
30 | } | |
46d7de19 | 31 | |
6591c335 | 32 | stub_warning (unlockpt) |