Shut up a signed/unsigned compiler warning from MSVC++ by converting newlength and oldlength from signed to unsigned in join_nodes().
Shut up a signed/unsigned compiler warning from MSVC++ by converting
newlength and oldlength from signed to unsigned in join_nodes().

Use dns_name_clone for minor efficiency gain in dns_rbt_addnode.

Use fixed names in dns_rbt_findnode() for minor efficiency gain.

each/bind9-collab,each/bind9-collab,each/bind9-collab,pecharmin/bind9,pecharmin/bind9,pecharmin/bind9,pecharmin/bind9,pecharmin/bind9,each/bind9-collab,each/bind9-collab,pecharmin/bind9,each/bind9-collab