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/* vi: set sw=4 ts=4: */
/*
* 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 "busybox.h"
#include <mntent.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"
#define FLAG_CLOSE 1
#define FLAG_SMART 2
int eject_main(int argc, char **argv)
{
unsigned long flags;
char *device;
struct mntent *m;
int dev;
/*bb_opt_complementally = "t--T:T--t";*/
flags = bb_getopt_ulflags(argc, argv, "tT");
device = argv[optind] ? : DEFAULT_CDROM;
m = find_mount_point(device, bb_path_mtab_file);
if (m) {
if (umount(m->mnt_dir)) {
bb_error_msg_and_die("can't umount");
} else if (ENABLE_FEATURE_MTAB_SUPPORT) {
erase_mtab(m->mnt_fsname);
}
}
dev = xopen(device, O_RDONLY|O_NONBLOCK);
if (flags & FLAG_CLOSE) goto close_tray;
if (ioctl(dev, CDROMEJECT)) {
close_tray:
if (ioctl(dev, CDROMCLOSETRAY))
bb_perror_msg_and_die("%s", device);
}
if (ENABLE_FEATURE_CLEAN_UP) close(dev);
return EXIT_SUCCESS;
}
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