-#include <netinet/in.h> /* For IPv6 macros */
-#include <netinet/ip.h> /* For IPTOS macros */
-#include <netinet/tcp.h>
-#ifdef HAVE_NET_IF_H
-# include <net/if.h>
-#endif
-#include <arpa/inet.h>
-#if defined(HAVE_NETDB_H)
-# include <netdb.h>
-#endif