diff options
| author | Kay Sievers <kay.sievers@vrfy.org> | 2009-11-20 03:03:27 +0100 |
|---|---|---|
| committer | Kay Sievers <kay.sievers@vrfy.org> | 2009-11-20 03:03:27 +0100 |
| commit | 160b069c25690bfb0c785994c7c3710289179107 (patch) | |
| tree | 4bda3e40a9a9e533775c2cea5afebd88a7c8cc50 /extras | |
| parent | ecf61aa7fdb5b7e9e19f06584caee9b5eb1c7350 (diff) | |
ata_id: skip ATA commands if we find an optical drive
Some drives are reported to erase CD-RW media with the ATA
commands we send.
Thanks to Christoph Stritt <phoenix@jobob.com> for his debugging.
Original bug is here:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=556635
Diffstat (limited to 'extras')
| -rw-r--r-- | extras/ata_id/ata_id.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/extras/ata_id/ata_id.c b/extras/ata_id/ata_id.c index 66b9f42332..cbd3b5b8d2 100644 --- a/extras/ata_id/ata_id.c +++ b/extras/ata_id/ata_id.c @@ -38,6 +38,7 @@ #include <linux/types.h> #include <linux/hdreg.h> #include <linux/fs.h> +#include <linux/cdrom.h> #include <arpa/inet.h> #include "libudev.h" @@ -210,6 +211,16 @@ static int disk_identify (struct udev *udev, goto fail; } + /* + * do not confuse optical drive firmware with ATA commands + * some drives are reported to blank CD-RWs + */ + if (ioctl(fd, CDROM_GET_CAPABILITY, NULL) >= 0) { + errno = EIO; + ret = -1; + goto fail; + } + /* So, it's a block device. Let's make sure the ioctls work */ if ((ret = ioctl(fd, BLKGETSIZE64, &size)) < 0) goto fail; |