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ndb/dns: cleanup

--- a/sys/src/cmd/ndb/dblookup.c

+++ b/sys/src/cmd/ndb/dblookup.c

@@ -839,7 +839,7 @@

 }

 static void

-addlocaldnsserver(DN *dp, int class, char *ipaddr, int i)

+addlocaldnsserver(DN *dp, int class, char *addr, int i)

 {

 	uchar ip[IPaddrlen];

 	DN *nsdp, *ipdp;

@@ -847,8 +847,8 @@

 	int type, n;

 	char buf[32];

-	if(parseip(ip, ipaddr) == -1 || ipcmp(ip, IPnoaddr) == 0){

-		dnslog("rejecting bad ip %s as local dns server", ipaddr);

+	if(parseip(ip, addr) == -1 || ipcmp(ip, IPnoaddr) == 0){

+		dnslog("rejecting bad ip %s as local dns server", addr);

 		return;

 	}

--- a/sys/src/cmd/ndb/dns.h

+++ b/sys/src/cmd/ndb/dns.h

@@ -494,7 +494,6 @@

 /* dblookup.c */

 int	baddelegation(RR*, RR*, uchar*);

-RR*	dbinaddr(DN*, int);

 RR*	dblookup(char*, int, int, int, int);

 RR*	dnsservers(int);

 RR*	domainlist(int);