bin/121158: Tar regression from 6.2 to 6.3 with --strip-components

[Jan Mikkelsen]

>Number:         121158
>Category:       bin
>Synopsis:       Tar regression from 6.2 to 6.3 with --strip-components
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Wed Feb 27 21:20:00 UTC 2008
>Closed-Date:
>Last-Modified:
>Originator:     Jan Mikkelsen
>Release:        6.3-RC2
>Organization:
Transactionware
>Environment:
FreeBSD midgard.transactionware.com 6.3-RC2 FreeBSD 6.3-RC2 #0: Fri Jan 11 10:55:31 EST 2008     root at midgard.transactionware.com:/scratch/janm/p4/image-freebsd-std-2008.1/work/base-freebsd/scratch/janm/p4/image-freebsd-std-2008.1/FreeBSD/src/sys/TW-SMP  amd64

>Description:
I've just noticed a regression in tar from 6.2 to 6.3:

Running this on 6.2 produces no output:

#!/bin/sh
mkdir -p a b output
touch a/file1 b/file2
tar cf test.tar a b
tar -x -C output --strip-components 1 -f test.tar

On 6.3, it produces this output:

: Invalid empty pathname
: Invalid empty pathname
tar: Error exit delayed from previous errors.

And the tar extraction returns a failure.

>How-To-Repeat:
As above.
>Fix:
Not known at this stage.

>Release-Note:
>Audit-Trail:
>Unformatted: