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authorGravatar Denis Vlasenko <vda.linux@googlemail.com>2008-03-17 09:29:43 +0000
committerGravatar Denis Vlasenko <vda.linux@googlemail.com>2008-03-17 09:29:43 +0000
commitb44c790e41e281965955a83408f35ea53ecdb3d2 (patch)
tree98514dba64f7b74b9d60882bfeca1e2c4976b033 /miscutils/eject.c
parentd25c33f186c7cf3618c34ce79af94fe156f9ab02 (diff)
downloadbusybox-b44c790e41e281965955a83408f35ea53ecdb3d2.tar.gz
busybox-b44c790e41e281965955a83408f35ea53ecdb3d2.tar.bz2
*: fix various kinds of damage to letter 'c' in Arkadiusz Mickiewicz' surname.
chrt,taskset,dc,eject: shrink crontab: call "vi" with just name, no path watchdog: intercept all fatal signals function old new delta xstrtoull_range - 35 +35 static.sg_commands - 18 +18 packed_usage 23698 23712 +14 watchdog_main 148 151 +3 crontab_main 637 638 +1 base 1 - -1 static.ps 4 - -4 pointer 4 - -4 stack_machine 99 92 -7 run_command 273 260 -13 eject_main 360 343 -17 static.C 30 12 -18 ptok 61 38 -23 xstrtol_range 27 - -27 get_token 35 - -35 taskset_main 586 550 -36 chrt_main 411 372 -39 dc_main 158 117 -41 time_main 1127 1037 -90 ------------------------------------------------------------------------------ (add/remove: 2/5 grow/shrink: 3/9 up/down: 71/-355) Total: -284 bytes text data bss dec hex filename 793680 662 7420 801762 c3be2 busybox_old 793327 662 7412 801401 c3a79 busybox_unstripped
Diffstat (limited to 'miscutils/eject.c')
-rw-r--r--miscutils/eject.c95
1 files changed, 49 insertions, 46 deletions
diff --git a/miscutils/eject.c b/miscutils/eject.c
index 3d27ce545..42e071941 100644
--- a/miscutils/eject.c
+++ b/miscutils/eject.c
@@ -22,68 +22,71 @@
/* drive status possibilities returned by CDROM_DRIVE_STATUS ioctl */
#define CDS_TRAY_OPEN 2
-#define FLAG_CLOSE 1
-#define FLAG_SMART 2
-
+#define dev_fd 3
/* Code taken from the original eject (http://eject.sourceforge.net/),
* refactored it a bit for busybox (ne-bb@nicoerfurth.de) */
-#define FLAG_SCSI 4
#include <scsi/sg.h>
#include <scsi/scsi.h>
-static void eject_scsi(const int fd, const char * const dev)
+
+static void eject_scsi(const char *dev)
{
- int i;
- unsigned char sense_buffer[32];
- unsigned char inqBuff[2];
- sg_io_hdr_t io_hdr;
- char sg_commands[3][6] = {
- {ALLOW_MEDIUM_REMOVAL, 0, 0, 0, 0, 0},
- {START_STOP, 0, 0, 0, 1, 0},
- {START_STOP, 0, 0, 0, 2, 0}
- };
-
- if ((ioctl(fd, SG_GET_VERSION_NUM, &i) < 0) || (i < 30000))
- bb_error_msg_and_die("not an 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 = sg_commands[i];
- ioctl_or_perror_and_die(fd, SG_IO, (void *)&io_hdr, "%s", dev);
- }
-
- /* force kernel to reread partition table when new disc inserted */
- ioctl(fd, BLKRRPART);
+ static const char sg_commands[3][6] = {
+ { ALLOW_MEDIUM_REMOVAL, 0, 0, 0, 0, 0 },
+ { START_STOP, 0, 0, 0, 1, 0 },
+ { START_STOP, 0, 0, 0, 2, 0 }
+ };
+
+ int 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 = (char*)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);
}
-static void eject_cdrom(const int fd, const unsigned long flags,
- const char * const dev)
+#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(fd, CDROM_DRIVE_STATUS) == CDS_TRAY_OPEN))
+ || (flags & FLAG_SMART && ioctl(dev_fd, CDROM_DRIVE_STATUS) == CDS_TRAY_OPEN)
+ ) {
cmd = CDROMCLOSETRAY;
+ }
- return ioctl_or_perror_and_die(fd, cmd, NULL, "%s", dev);
+ 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 ATTRIBUTE_UNUSED, char **argv)
{
- unsigned long flags;
+ unsigned flags;
const char *device;
- int dev;
opt_complementary = "?1:t--T:T--t";
flags = getopt32(argv, "tT" USE_FEATURE_EJECT_SCSI("s"));
@@ -96,18 +99,18 @@ int eject_main(int argc ATTRIBUTE_UNUSED, char **argv)
This works equally well (or better):
#!/bin/sh
umount /dev/cdrom
- eject
+ eject /dev/cdrom
*/
- dev = xopen(device, O_RDONLY|O_NONBLOCK);
+ xmove_fd(xopen(device, O_RDONLY|O_NONBLOCK), dev_fd);
if (ENABLE_FEATURE_EJECT_SCSI && (flags & FLAG_SCSI))
- eject_scsi(dev, device);
+ eject_scsi(device);
else
- eject_cdrom(dev, flags, device);
+ eject_cdrom(flags, device);
if (ENABLE_FEATURE_CLEAN_UP)
- close(dev);
+ close(dev_fd);
return EXIT_SUCCESS;
}