1 /* vi: set sw=4 ts=4: */
3 * eject implementation for busybox
5 * Copyright (C) 2004 Peter Willis <psyphreak@phreaker.net>
6 * Copyright (C) 2005 Tito Ragusa <farmatito@tiscali.it>
8 * Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
12 * This is a simple hack of eject based on something Erik posted in #uclibc.
13 * Most of the dirty work blatantly ripped off from cat.c =)
18 /* various defines swiped from linux/cdrom.h */
19 #define CDROMCLOSETRAY 0x5319 /* pendant of CDROMEJECT */
20 #define CDROMEJECT 0x5309 /* Ejects the cdrom media */
21 #define CDROM_DRIVE_STATUS 0x5326 /* Get tray position, etc. */
22 /* drive status possibilities returned by CDROM_DRIVE_STATUS ioctl */
23 #define CDS_TRAY_OPEN 2
28 int eject_main(int argc, char **argv)
34 opt_complementary = "?:?1:t--T:T--t";
35 flags = getopt32(argc, argv, "tT");
36 device = argv[optind] ? : "/dev/cdrom";
38 // We used to do "umount <device>" here, but it was buggy
39 // if something was mounted OVER cdrom and
40 // if cdrom is mounted many times.
42 // This works equally well (or better):
47 dev = xopen(device, O_RDONLY|O_NONBLOCK);
49 if (flags & FLAG_CLOSE
50 || (flags & FLAG_SMART && ioctl(dev, CDROM_DRIVE_STATUS) == CDS_TRAY_OPEN))
52 if (ioctl(dev, cmd)) {
53 bb_perror_msg_and_die("%s", device);
56 if (ENABLE_FEATURE_CLEAN_UP)