1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21/*
22 * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
23 * Use is subject to license terms.
24 */
25
26#include <sys/types.h>
27#include <sys/stat.h>
28#include <fcntl.h>
29#include <unistd.h>
30#include <stropts.h>
31#include <sys/vt.h>
32
33/*
34 * return value:
35 *  0: disabled
36 *  1: enabled
37 *  2: An error occured
38 */
39int
40main(void)
41{
42	int result;
43	int fd;
44
45	if ((fd = open("/dev/vt/0", O_RDONLY)) < 0)
46		return (2);
47
48	if (ioctl(fd, VT_ENABLED, &result) != 0) {
49		(void) close(fd);
50		return (2);
51	}
52
53	(void) close(fd);
54
55	if (result == 0)
56		return (0);	/* disabled */
57
58	return (1);		/* enabled */
59}
60