dumpfs incorrectly displays ufsid

[Trond Endrestøl]

On Tue, 26 May 2015 12:31+0200, rank1seeker at gmail.com wrote:

> I've reported this at REL 8.2, long ago at May 2011
>     https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=156908
> 
> Now at 10.1-RELEASE-p10 #0 r282952   i386
> 
> This happens, ONLY when first chars are 0 (zeros) in second pair of 8
> chars, in which case dumpfs, ommits them.
> I.e; For:
>     /dev/ufsid/3b9aca0000000001
> 
> # dumpfs ada0s1h | head -2
> magic   19540119 (UFS2) time    Sun Sep  9 03:46:40 2001
> superblock location     65536   id      [ 3b9aca00 1 ]
> 
> Problem is in '[ 3b9aca00 1 ]'

If you apply this patch, then the case for UFS2 is treated similar to 
the case for UFS1:

Index: sbin/dumpfs/dumpfs.c
===================================================================
--- sbin/dumpfs/dumpfs.c	(revision 283516)
+++ sbin/dumpfs/dumpfs.c	(working copy)
@@ -165,7 +165,7 @@
 		fstime = afs.fs_time;
 		printf("magic\t%x (UFS2)\ttime\t%s",
 		    afs.fs_magic, ctime(&fstime));
-		printf("superblock location\t%jd\tid\t[ %x %x ]\n",
+		printf("superblock location\t%jd\tid\t[ %08x %08x ]\n",
 		    (intmax_t)afs.fs_sblockloc, afs.fs_id[0], afs.fs_id[1]);
 		printf("ncg\t%d\tsize\t%jd\tblocks\t%jd\n",
 		    afs.fs_ncg, (intmax_t)fssize, (intmax_t)afs.fs_dsize);

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