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/*
* eject implementation for busybox
*
* Copyright (C) 2004 Peter Willis <psyphreak@phreaker.net>
* Copyright (C) 2005 Tito Ragusa <farmatito@tiscali.it>
*
* Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
*/
/*
* This is a simple hack of eject based on something Erik posted in #uclibc.
* Most of the dirty work blatantly ripped off from cat.c =)
*/
#include <fcntl.h>
#include <sys/ioctl.h>
#include <unistd.h>
#include <sys/mount.h>
#include <mntent.h>
#include "busybox.h"
/* various defines swiped from linux/cdrom.h */
#define CDROMCLOSETRAY 0x5319 /* pendant of CDROMEJECT */
#define CDROMEJECT 0x5309 /* Ejects the cdrom media */
#define DEFAULT_CDROM "/dev/cdrom"
int eject_main(int argc, char **argv)
{
unsigned long flags;
char *device;
struct mntent *m;
flags = bb_getopt_ulflags(argc, argv, "t");
device = argv[optind] ? : DEFAULT_CDROM;
if ((m = find_mount_point(device, bb_path_mtab_file))) {
if (umount(m->mnt_dir)) {
bb_error_msg_and_die("Can't umount");
} else if (ENABLE_FEATURE_MTAB_SUPPORT) {
erase_mtab(m->mnt_fsname);
}
}
if (ioctl(bb_xopen(device, (O_RDONLY | O_NONBLOCK)),
(flags ? CDROMCLOSETRAY : CDROMEJECT))) {
bb_perror_msg_and_die("%s", device);
}
return (EXIT_SUCCESS);
}
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