linux ttyname{_r}: Make tty checks consistent
[glibc.git] / login / getpt.c
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1 /* Copyright (C) 1998-2017 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 /* Open the master side of a pseudoterminal and return its file
23 descriptor, or -1 on error. */
24 int
25 __getpt (void)
27 __set_errno (ENOSYS);
28 return -1;
30 weak_alias (__getpt, getpt)
32 /* We cannot define posix_openpt in general for BSD systems. */
33 int
34 __posix_openpt (int oflag)
36 __set_errno (ENOSYS);
37 return -1;
39 weak_alias (__posix_openpt, posix_openpt)
41 stub_warning (getpt)
42 stub_warning (posix_openpt)