blob: 37a894b139a4d30c499089b225b9968b1b4e7234 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
|
/* Device numbers of devices used in the implementation. Linux version.
Copyright (C) 2000-2017 Free Software Foundation, Inc.
This file is part of the GNU C Library.
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/>. */
#ifndef _DEVICE_NRS_H
#define _DEVICE_NRS_H 1
#include <sys/sysmacros.h>
/* /dev/null is (1,3). */
#define DEV_NULL_MAJOR 1
#define DEV_NULL_MINOR 3
/* /dev/full is (1,7). */
#define DEV_FULL_MAJOR 1
#define DEV_FULL_MINOR 7
/* Pseudo tty slaves. For Linux we use the Unix98 ttys. We could
also include the old BSD-style tty buts they should not be used and
the extra test would only slow down correctly set up systems. If a
system still uses those device the slower tests performed (using
isatty) will catch it. */
#define DEV_TTY_LOW_MAJOR 136
#define DEV_TTY_HIGH_MAJOR 143
/* Test whether given device is a tty. */
#define DEV_TTY_P(statp) \
({ int __dev_major = major ((statp)->st_rdev); \
__dev_major >= DEV_TTY_LOW_MAJOR && __dev_major <= DEV_TTY_HIGH_MAJOR; })
#endif /* device-nrs.h */
|
