lib/47570: vis fallout breaks postinstall

[martin%NetBSD.org@localhost]

>Number:         47570
>Category:       lib
>Synopsis:       vis fallout breaks postinstall
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    lib-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Fri Feb 15 09:10:00 +0000 2013
>Originator:     Martin Husemann
>Release:        NetBSD 6.99.17
>Organization:
The NetBSD Foundation, Inc.
>Environment:
System: NetBSD thirdstage.duskware.de 6.99.17 NetBSD 6.99.17 (MODULAR) #44: Thu 
Feb 14 10:29:13 CET 2013 
martin%night-porter.duskware.de@localhost:/usr/src/sys/arch/sparc64/compile/MODULAR
 sparc64
Architecture: sparc64
Machine: sparc64
>Description:

Within the last few days postinstall started failing the pwd.db version
check.

This is caused by output like:

 # db -q -Sb -Ub -To -N hash /etc/pwd.db 'VERSION\0'
 VERSION\000\000 \000\000\000\001V

while expected output would be:
 VERSION\000 \000\000\000\001

or, like on this older and different byte order system:

 # db -q -Sb -Ub -To -N hash /etc/pwd.db 'VERSION\0'
 VERSION\000     \001\000\000\000

>How-To-Repeat:
s/a
>Fix:
n/a