bin/91608: tar(1) reports (Empty error message) on truncated tarballs.

[trasz]

>Number:         91608
>Category:       bin
>Synopsis:       tar(1) reports (Empty error message) on truncated tarballs.
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Tue Jan 10 18:50:02 GMT 2006
>Closed-Date:
>Last-Modified:
>Originator:     trasz
>Release:        6.0-RC1
>Organization:
>Environment:
FreeBSD traszkan.ds7 6.0-RC1 FreeBSD 6.0-RC1 #0: Sat Oct 29 21:42:46 CEST 2005     trasz at traszkan.ds7:/usr/obj/usr/src/sys/TRASHCAN  i386
>Description:
tar(1) reports '(Empty error message)' when trying to list contents or extract truncated archive.

>How-To-Repeat:
[trasz at traszkan:~]$ dd if=mga.tar of=test.tar bs=1k count=100
100+0 records in
100+0 records out
102400 bytes transferred in 0.016331 secs (6270208 bytes/sec)
[trasz at traszkan:~]$ tar tvf test.tar 
drwxr-xr-x  0 root   wheel       0 Feb  9  2005 mga/
-rw-r--r--  0 root   wheel   41592 Apr 23  2004 mga/mgareg_flags.h
-rw-r--r--  0 root   wheel     804 Nov 14  2003 mga/mga_merge.h
-rw-r--r--  0 root   wheel     523 Apr 23  2004 mga/mga_map.h
-rw-r--r--  0 root   wheel    6063 Apr 23  2004 mga/mga_shadow.c
-rw-r--r--  0 root   wheel    6280 Apr 23  2004 mga/mga_arc.c
-rw-r--r--  0 root   wheel    3104 Jun 16  2004 mga/mga_dri.h
-rw-r--r--  0 root   wheel    2922 Apr 23  2004 mga/mga_macros.h
-rw-r--r--  0 root   wheel  180490 Nov 14  2003 mga/mga_ucode.h
tar: (Empty error message)
[trasz at traszkan:~]$ 

>Fix:

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