1/******************************************************************************/
2/*                                                                            */
3/* Copyright (c) International Business Machines  Corp., 2001                 */
4/*  Jan 8 2003 - Created - Manoj Iyer manjo@mail.utexas.edu                   */
5/*                                                                            */
6/* This program is free software;  you can redistribute it and/or modify      */
7/* it under the terms of the GNU General Public License as published by       */
8/* the Free Software Foundation; either version 2 of the License, or          */
9/* (at your option) any later version.                                        */
10/*                                                                            */
11/* This program is distributed in the hope that it will be useful, but        */
12/* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY */
13/* or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License   */
14/* for more details.                                                          */
15/*                                                                            */
16/* You should have received a copy of the GNU General Public License          */
17/* along with this program;  if not, write to the Free Software Foundation,   */
18/* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA           */
19/******************************************************************************/
20
21/*
22 *
23 * Description: This program checks the status of the cdrom drive, it will
24 *              return the status as to if the cdrom device is open or is
25 *              ready for use.
26 */
27
28#include <sys/stat.h>
29#include <fcntl.h>
30#include <linux/cdrom.h>
31#include <sys/ioctl.h>
32#include <stdlib.h>
33
34/*
35 * Exit Vaules:
36 * 0 - No information.
37 * 1 - No disk in the drive.
38 * 2 - CD tray is open.
39 * 3 - CD drive not ready.
40 * 4 - CD disk in drive & drive closed.
41 */
42int main(int argc, char *argv[])
43{
44	int fd;
45
46	if (argc != 2)
47		exit(-1);
48
49	if ((fd = open(argv[1], O_RDONLY | O_NONBLOCK)) == -1)
50		exit(-2);
51
52	exit(ioctl(fd, CDROM_DRIVE_STATUS));
53}
54