dns_dlzcreate() failed to properly initialize
dlzdb.link. When cloning a rdataset do not copy
the link contents. [RT #32651]
Squashed commit of the following:
commit c36c49cbdaeec8b2506dffadbffa543283702fa2
Author: Mark Andrews <marka@isc.org>
Date: Mon Feb 18 23:24:57 2013 +1100
don't copy the link when cloning a rdataset
commit 9fef5827edcc925075832dcce900eeca9057456d
Author: Mark Andrews <marka@isc.org>
Date: Mon Feb 18 23:23:25 2013 +1100
initialise the dlzdb link; don't return a stale pointer on error
commit a13c584732eae2dde48920a73886b54f1fe6b030
Author: Mark Andrews <marka@isc.org>
Date: Mon Feb 18 23:21:59 2013 +1100
turn on ISC_LIST_CHECKINIT
Conflicts:
lib/dns/dlz.c
(cherry picked from commit c1402b00d3)