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authorBernhard Kohl <bernhard.kohl@gmx.net>2010-09-06 17:06:02 +0200
committerKevin Wolf <kwolf@redhat.com>2010-09-08 12:39:19 +0200
commit05acda4d1660591ea317619699f6aa7c659a90f1 (patch)
tree2aab83078e4d10214ce0d636329fec701b5a4f59 /block/raw-posix.c
parentebef0bbb1a8b5420a50e887972cc6bf0d150f9b7 (diff)
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raw-posix: improve detection of scsi-generic devices
Allow symbolic links which point to /dev/sgX devices. Signed-off-by: Bernhard Kohl <bernhard.kohl@nsn.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'block/raw-posix.c')
-rw-r--r--block/raw-posix.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/block/raw-posix.c b/block/raw-posix.c
index 0fce449..813372a 100644
--- a/block/raw-posix.c
+++ b/block/raw-posix.c
@@ -48,6 +48,7 @@
#endif
#ifdef __linux__
#include <sys/ioctl.h>
+#include <sys/param.h>
#include <linux/cdrom.h>
#include <linux/fd.h>
#endif
@@ -868,8 +869,13 @@ static int hdev_open(BlockDriverState *bs, const char *filename, int flags)
s->type = FTYPE_FILE;
#if defined(__linux__)
- if (strstart(filename, "/dev/sg", NULL)) {
- bs->sg = 1;
+ {
+ char resolved_path[ MAXPATHLEN ], *temp;
+
+ temp = realpath(filename, resolved_path);
+ if (temp && strstart(temp, "/dev/sg", NULL)) {
+ bs->sg = 1;
+ }
}
#endif