--- bro/src/nb_dns.c	2008-04-22 10:29:04.000000000 +0800
+++ bro-work/src/nb_dns.c	2008-04-24 09:29:25.000000000 +0800
@@ -298,7 +298,7 @@
 	    NULL,			/* data */
 	    0,				/* length of data */
 	    NULL,			/* new rr */
-	    (char *)msg,		/* buffer */
+	    (u_char *)msg,		/* buffer */
 	    sizeof(msg));		/* size of buffer */
 	if (n < 0) {
 		snprintf(errstr, NB_DNS_ERRSIZE, "res_mkquery() failed");
@@ -448,10 +448,10 @@
 {
 	register int msglen, qtype, atype, n, i;
 	register struct nb_dns_entry *ne, *lastne;
-	int fromlen;
+	socklen_t fromlen;
 	struct sockaddr from;
 	u_long msg[MAXPACKET / sizeof(u_long)];
-	register u_char *bp, *ep;
+	register char *bp, *ep;
 	register char **ap, **hap;
 	register u_int16_t id;
 	register const u_char *rdata;