Fix udev_volume_id for reiserfs v3.5

[Hannes Reinecke <hare@suse.de>]

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Hi Kay,

the attached patch fixes udev_volume_id for old reiserfs volumes.

How are we supposed to handle old/invalid labels?
The one I'm reading here is
eb 4d 72 17 06 4e 72 17 09 4e 72 17 53 4e 72 17
which is clearly bogus. I'll check with our fs-gurus but I think
we should filter them out in udev_volume_id.
Can't we test for isascii(rs->label[0]) ?

Cheers,

Hannes
-- 
Dr. Hannes Reinecke			hare@suse.de
SuSE Linux AG				S390 & zSeries
Maxfeldstraße 5				+49 911 74053 688
90409 Nürnberg				http://www.suse.de

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===== extras/volume_id/volume_id/reiserfs.c 1.7 vs edited =====
--- 1.7/extras/volume_id/volume_id/reiserfs.c	2005-03-09 16:58:00 +01:00
+++ edited/extras/volume_id/volume_id/reiserfs.c	2005-03-15 13:31:53 +01:00
@@ -80,6 +80,10 @@
 		return -1;
 
 	rs = (struct reiserfs_super_block *) buf;;
+	if (memcmp(rs->magic, "ReIsErFs", 9) == 0) {
+		strcpy(id->type_version, "3.5");
+		goto found_v3;
+	}
 	if (memcmp(rs->magic, "ReIsEr2Fs", 9) == 0) {
 		strcpy(id->type_version, "3.6");
 		goto found_v3;