do not taint ::/124 for IPv6 localhost table.

avoid lookups to localhost.berkeley.edu.

src/etc/namedb/localhost.rev

@@ -7,4 +7,4 @@
 				3600000	; Expire
 				3600 )	; Minimum
 	IN	NS	ucbvax.Berkeley.EDU.
-1	IN	PTR	localhost.Berkeley.EDU.
+1	IN	PTR	localhost.

src/etc/namedb/localhost.v6.rev

@@ -0,0 +1,10 @@
+;	@(#)localhost.rev	5.1 (Berkeley) 6/30/90
+
+@	IN	SOA	ucbvax.Berkeley.EDU. rwh.ucbvax.Berkeley.EDU.  (
+				14	; Serial
+				3600	; Refresh
+				900	; Retry
+				3600000	; Expire
+				3600 )	; Minimum
+	IN	NS	ucbvax.Berkeley.EDU.
+	IN	PTR	localhost.

src/etc/namedb/localhost.zone

@@ -0,0 +1,12 @@
+;	@(#)localhost.rev	5.1 (Berkeley) 6/30/90
+
+@	IN	SOA	ucbvax.Berkeley.EDU. rwh.ucbvax.Berkeley.EDU.  (
+				14	; Serial
+				3600	; Refresh
+				900	; Retry
+				3600000	; Expire
+				3600 )	; Minimum
+	IN	NS	ucbvax.Berkeley.EDU.
+localhost.	IN	NS	localhost.
+		IN	A	127.0.0.1
+		IN	AAAA	::1

src/etc/namedb/named.boot

@@ -12,7 +12,8 @@ directory	/namedb
 
 cache     .							root.cache
 primary   0.0.127.IN-ADDR.ARPA	localhost.rev
-primary   0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.int localhost.rev
+primary   1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.int localhost.v6.rev
+primary   localhost		localhost.zone
 
 ; example secondary server config:
 ; secondary Berkeley.EDU	128.32.130.11 128.32.133.1	ucbhosts.bak