File fixtype.patch of Package ip6nat

Index: ip6nat/packet.cc
===================================================================
--- ip6nat.orig/packet.cc
+++ ip6nat/packet.cc
@@ -355,7 +355,7 @@ int packet_queue::nfqueue_cb(struct nfq_
 int packet_queue::do_nat(struct nfq_q_handle *qh, struct nfq_data *nfqd)
 {
 	int ret = 0;
-	char *data = NULL;
+	unsigned char *data = NULL;
 	struct nfqnl_msg_packet_hdr *ph = nfq_get_msg_packet_hdr(nfqd);
 
 	if (!ph) {