diff -ruN dnshijacker.old/files/dnshijacker.c.patch dnshijacker/files/dnshijacker.c.patch
--- dnshijacker.old/files/dnshijacker.c.patch	Wed Dec 31 16:00:00 1969
+++ dnshijacker/files/dnshijacker.c.patch	Fri Apr 15 18:35:25 2005
@@ -0,0 +1,11 @@
+--- dnshijacker.c.orig	Thu Mar 31 15:00:10 2005
++++ dnshijacker.c	Thu Mar 31 15:01:43 2005
+@@ -733,7 +733,7 @@ void spoof_dns (int socket)   {
+      *  source and destination are swapped here because we are spoofing a reply
+      */
+ 
+-    libnet_build_ip(LIBNET_UDP_H + LIBNET_DNS_H,
++    libnet_build_ip(packet_size - LIBNET_IP_H,
+             0,                                   /* ip tos              */
+             0,                                   /* ip id               */
+             0,                                   /* fragmentation bits  */