libdnet stripped and integrated, ARP ping scan starting to work pretty well

libdnet-stripped/include/dnet/udp.h

@@ -0,0 +1,32 @@
+/*
+ * udp.h
+ *
+ * User Datagram Protocol (RFC 768).
+ *
+ * Copyright (c) 2000 Dug Song <dugsong@monkey.org>
+ *
+ * $Id: udp.h,v 1.8 2002/04/02 05:05:39 dugsong Exp $
+ */
+
+#ifndef DNET_UDP_H
+#define DNET_UDP_H
+
+#define UDP_HDR_LEN	8
+
+struct udp_hdr {
+	uint16_t	uh_sport;	/* source port */
+	uint16_t	uh_dport;	/* destination port */
+	uint16_t	uh_ulen;	/* udp length (including header) */
+	uint16_t	uh_sum;		/* udp checksum */
+};
+
+#define UDP_PORT_MAX	65535
+
+#define udp_pack_hdr(hdr, sport, dport, ulen) do {		\
+	struct udp_hdr *udp_pack_p = (struct udp_hdr *)(hdr);	\
+	udp_pack_p->uh_sport = htons(sport);			\
+	udp_pack_p->uh_dport = htons(dport);			\
+	udp_pack_p->uh_ulen = htons(ulen);			\
+} while (0)
+
+#endif /* DNET_UDP_H */