blob: 988403891fd4c821b302021d8cddf4a2c32511ee [file] [log] [blame]
xf.libdd93d52023-05-12 07:10:14 -07001/* Determine if a file descriptor refers to a terminal. NaCl version.
2 Copyright (C) 2015-2016 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
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.
9
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.
14
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/>. */
18
19#include <errno.h>
20#include <unistd.h>
21#include <nacl-interfaces.h>
22
23/* Return 1 if FD is a terminal, 0 if not. */
24int
25__isatty (int fd)
26{
27 int result;
28 int error = __nacl_irt_dev_fdio.isatty (fd, &result);
29 if (error == 0)
30 {
31 if (result)
32 return 1;
33 error = ENOTTY;
34 }
35 errno = error;
36 return 0;
37}
38weak_alias (__isatty, isatty)