1/* Copyright (C) 2016-2017 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public License as
6 published by the Free Software Foundation; either version 2.1 of the
7 License, or (at your option) any later version.
8
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; see the file COPYING.LIB. If
16 not, see <http://www.gnu.org/licenses/>. */
17
18#include <unistd.h>
19#include <sys/sysmacros.h>
20#include <sys/types.h>
21#include <sys/stat.h>
22
23/* Return true if this is a UNIX98 pty device, as defined in
24 linux/Documentation/devices.txt. */
25static inline int
26is_pty (struct stat64 *sb)
27{
28#ifdef _STATBUF_ST_RDEV
29 int m = major (sb->st_rdev);
30 return (136 <= m && m <= 143);
31#else
32 return false;
33#endif
34}
35