diff options
Diffstat (limited to 'miscutils/eject.c')
| -rw-r--r-- | miscutils/eject.c | 152 |
1 files changed, 0 insertions, 152 deletions
diff --git a/miscutils/eject.c b/miscutils/eject.c deleted file mode 100644 index 667932f..0000000 --- a/miscutils/eject.c +++ /dev/null @@ -1,152 +0,0 @@ -/* 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 GPLv2 or later, see file LICENSE in this source tree. - */ - -/* - * 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 =) - */ -//config:config EJECT -//config: bool "eject" -//config: default y -//config: select PLATFORM_LINUX -//config: help -//config: Used to eject cdroms. (defaults to /dev/cdrom) -//config: -//config:config FEATURE_EJECT_SCSI -//config: bool "SCSI support" -//config: default y -//config: depends on EJECT -//config: help -//config: Add the -s option to eject, this allows to eject SCSI-Devices and -//config: usb-storage devices. - -//applet:IF_EJECT(APPLET(eject, BB_DIR_USR_BIN, BB_SUID_DROP)) - -//kbuild:lib-$(CONFIG_EJECT) += eject.o - -//usage:#define eject_trivial_usage -//usage: "[-t] [-T] [DEVICE]" -//usage:#define eject_full_usage "\n\n" -//usage: "Eject DEVICE or default /dev/cdrom\n" -//usage: IF_FEATURE_EJECT_SCSI( -//usage: "\n -s SCSI device" -//usage: ) -//usage: "\n -t Close tray" -//usage: "\n -T Open/close tray (toggle)" - -#include <sys/mount.h> -#include "libbb.h" -#if ENABLE_FEATURE_EJECT_SCSI -/* Must be after libbb.h: they need size_t */ -# include "fix_u32.h" -# include <scsi/sg.h> -# include <scsi/scsi.h> -#endif - -#define dev_fd 3 - -/* Code taken from the original eject (http://eject.sourceforge.net/), - * refactored it a bit for busybox (ne-bb@nicoerfurth.de) */ - -#if ENABLE_FEATURE_EJECT_SCSI -static void eject_scsi(const char *dev) -{ - static const char sg_commands[3][6] ALIGN1 = { - { ALLOW_MEDIUM_REMOVAL, 0, 0, 0, 0, 0 }, - { START_STOP, 0, 0, 0, 1, 0 }, - { START_STOP, 0, 0, 0, 2, 0 } - }; - - unsigned i; - unsigned char sense_buffer[32]; - unsigned char inqBuff[2]; - sg_io_hdr_t io_hdr; - - if ((ioctl(dev_fd, SG_GET_VERSION_NUM, &i) < 0) || (i < 30000)) - bb_error_msg_and_die("not a sg device or old sg driver"); - - memset(&io_hdr, 0, sizeof(sg_io_hdr_t)); - io_hdr.interface_id = 'S'; - io_hdr.cmd_len = 6; - io_hdr.mx_sb_len = sizeof(sense_buffer); - io_hdr.dxfer_direction = SG_DXFER_NONE; - /* io_hdr.dxfer_len = 0; */ - io_hdr.dxferp = inqBuff; - io_hdr.sbp = sense_buffer; - io_hdr.timeout = 2000; - - for (i = 0; i < 3; i++) { - io_hdr.cmdp = (void *)sg_commands[i]; - ioctl_or_perror_and_die(dev_fd, SG_IO, (void *)&io_hdr, "%s", dev); - } - - /* force kernel to reread partition table when new disc is inserted */ - ioctl(dev_fd, BLKRRPART); -} -#else -# define eject_scsi(dev) ((void)0) -#endif - -/* various defines swiped from linux/cdrom.h */ -#define CDROMCLOSETRAY 0x5319 /* pendant of CDROMEJECT */ -#define CDROMEJECT 0x5309 /* Ejects the cdrom media */ -#define CDROM_DRIVE_STATUS 0x5326 /* Get tray position, etc. */ -/* drive status possibilities returned by CDROM_DRIVE_STATUS ioctl */ -#define CDS_TRAY_OPEN 2 - -#define FLAG_CLOSE 1 -#define FLAG_SMART 2 -#define FLAG_SCSI 4 - -static void eject_cdrom(unsigned flags, const char *dev) -{ - int cmd = CDROMEJECT; - - if (flags & FLAG_CLOSE - || ((flags & FLAG_SMART) && ioctl(dev_fd, CDROM_DRIVE_STATUS) == CDS_TRAY_OPEN) - ) { - cmd = CDROMCLOSETRAY; - } - - ioctl_or_perror_and_die(dev_fd, cmd, NULL, "%s", dev); -} - -int eject_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; -int eject_main(int argc UNUSED_PARAM, char **argv) -{ - unsigned flags; - const char *device; - - opt_complementary = "?1:t--T:T--t"; - flags = getopt32(argv, "tT" IF_FEATURE_EJECT_SCSI("s")); - device = argv[optind] ? argv[optind] : "/dev/cdrom"; - - /* We used to do "umount <device>" here, but it was buggy - if something was mounted OVER cdrom and - if cdrom is mounted many times. - - This works equally well (or better): - #!/bin/sh - umount /dev/cdrom - eject /dev/cdrom - */ - - xmove_fd(xopen_nonblocking(device), dev_fd); - - if (ENABLE_FEATURE_EJECT_SCSI && (flags & FLAG_SCSI)) - eject_scsi(device); - else - eject_cdrom(flags, device); - - if (ENABLE_FEATURE_CLEAN_UP) - close(dev_fd); - - return EXIT_SUCCESS; -} |