diff -ubd ../../nmap-4.20/libdnet-stripped/src/addr-util.c src/addr-util.c
--- ../../nmap-4.20/libdnet-stripped/src/addr-util.c	2005-08-08 04:02:16.000000000 +0000
+++ src/addr-util.c	2006-12-08 06:52:58.000000000 +0000
@@ -182,6 +182,7 @@
 		return (NULL);
 	
 	best.base = cur.base = -1;
+	best.len = cur.len = 0;
 	/*
 	 * Algorithm borrowed from Vixie's inet_pton6()
 	 */
diff -ubd ../../nmap-4.20/libdnet-stripped/src/intf.c src/intf.c
--- ../../nmap-4.20/libdnet-stripped/src/intf.c	2006-06-10 00:12:03.000000000 +0000
+++ src/intf.c	2006-12-08 06:39:48.000000000 +0000
@@ -623,7 +623,7 @@
 		return (-1);
 	
 	n = sizeof(sin);
-	if (getsockname(intf->fd, (struct sockaddr *)&sin, &n) < 0)
+	if (getsockname(intf->fd, (struct sockaddr *)&sin, (socklen_t *)&n) < 0)
 		return (-1);
 	
 	addr_ston((struct sockaddr *)&sin, &entry->intf_addr);
diff -ubd ../../nmap-4.20/libdnet-stripped/src/ip.c src/ip.c
--- ../../nmap-4.20/libdnet-stripped/src/ip.c	2005-01-25 21:30:40.000000000 +0000
+++ src/ip.c	2006-12-08 06:43:15.000000000 +0000
@@ -40,7 +40,7 @@
 #endif
 #ifdef SO_SNDBUF
 	len = sizeof(n);
-	if (getsockopt(i->fd, SOL_SOCKET, SO_SNDBUF, &n, &len) < 0)
+	if (getsockopt(i->fd, SOL_SOCKET, SO_SNDBUF, &n, (socklen_t *)&len) < 0)
 		return (ip_close(i));
 
 	for (n += 128; n < 1048576; n += 128) {