1 | /* Internal defenitions and declarations for pseudo terminal functions. |
2 | Copyright (C) 1998-2020 Free Software Foundation, Inc. |
3 | This file is part of the GNU C Library. |
4 | Contributed by Zack Weinberg <zack@rabi.phys.columbia.edu>, 1998. |
5 | |
6 | The GNU C Library is free software; you can redistribute it and/or |
7 | modify it under the terms of the GNU Lesser General Public |
8 | License as published by the Free Software Foundation; either |
9 | version 2.1 of the License, or (at your option) any later version. |
10 | |
11 | The GNU C Library is distributed in the hope that it will be useful, |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
14 | Lesser General Public License for more details. |
15 | |
16 | You should have received a copy of the GNU Lesser General Public |
17 | License along with the GNU C Library; if not, see |
18 | <https://www.gnu.org/licenses/>. */ |
19 | |
20 | #ifndef _PTY_PRIVATE_H |
21 | #define _PTY_PRIVATE_H 1 |
22 | |
23 | /* The group slave pseudo terminals belong to. */ |
24 | #define TTY_GROUP "tty" |
25 | |
26 | /* The file descriptor connected to the master pseudo terminal. */ |
27 | #define PTY_FILENO 3 |
28 | |
29 | /* Path to the helper program that implements `grantpt' in user space. */ |
30 | #define _PATH_PT_CHOWN LIBEXECDIR "/pt_chown" |
31 | |
32 | /* Test whether given TTY is really a Unix98 pseudo terminal. */ |
33 | /* #define unix98_pseudo_p(Dev) ... */ |
34 | |
35 | /* Exit codes for the helper program. */ |
36 | enum /* failure modes */ |
37 | { |
38 | FAIL_EBADF = 1, |
39 | FAIL_EINVAL, |
40 | FAIL_EACCES, |
41 | FAIL_EXEC, |
42 | FAIL_ENOMEM |
43 | }; |
44 | |
45 | #endif /* pty-private.h */ |
46 | |