bin/117909: BSDtar doesn't match files in a tar that gtar does

[Daniel O'Connor]

>Number:         117909
>Category:       bin
>Synopsis:       BSDtar doesn't match files in a tar that gtar does
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Thu Nov 08 04:40:02 UTC 2007
>Closed-Date:
>Last-Modified:
>Originator:     Daniel O'Connor
>Release:        FreeBSD 6.2-STABLE amd64
>Organization:
>Environment:
System: FreeBSD cain.gsoft.com.au 6.2-STABLE FreeBSD 6.2-STABLE #0: Fri Feb 2 17:35:07 CST 2007 root at new-cain.gsoft.com.au:/usr/obj/usr/src/sys/GENERIC amd64


>Description:
BSDtar doesn't seem to match files that GNUtar does. I have a tape containing
gzip'd tar files from which
I am trying to recover a directory tree.

This works..
gtar -b 128 -zxvf /dev/nsa0 /foo/bar
Whereas using bsdtar does not - it matches no files.

>How-To-Repeat:
I can't repeat this for small test archives but I have seen it happen twice
with large (multi gigabyte) archives.

>Fix:


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