bin/104934: bug in some date handling of bsdtar

[Herve Boulouis]

>Number:         104934
>Category:       bin
>Synopsis:       bug in some date handling of bsdtar
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Mon Oct 30 16:30:23 GMT 2006
>Closed-Date:
>Last-Modified:
>Originator:     Herve Boulouis
>Release:        Freebsd 6-STABLE
>Organization:
Nerim
>Environment:
FreeBSD marine.noc.nerim.net 6.2-PRERELEASE FreeBSD 6.2-PRERELEASE #0: Sun Sep 10 23:41:48 CEST 2006 root at marine.noc.nerim.net:/usr/obj/usr/src/sys/GENERIC-NERIM  i386
>Description:
bsdtar does not handle some date forms correctly :

marine:/usr/src/usr.bin/tar# date
Mon Oct 30 17:16:08 CET 2006
marine:/usr/src/usr.bin/tar# tar -cvpf /opt/var.tar --newer-mtime '2006-10-29 17:16:00' /var

-> correctly saves the files modified since yesterday

marine:/usr/src/usr.bin/tar# tar -cvpf /opt/var.tar --newer-mtime '1 day ago' /var

-> saves nothing 

marine:/usr/src/usr.bin/tar# tar -cvpf /opt/var.tar --newer-mtime 'yesterday' /var

-> saves nothing 

The form with '1 day ago' worked ok with gnu tar before it was replaced by bsdtar.

>How-To-Repeat:
see full description
>Fix:

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