#ifndef sys_udp_h
/*
* This header file must find the definition of the kernel's in_pcb struct,
* and anything related to that struct that our code needs.
*/
#ifndef   sys_socket_h
#include "sys_socket.h"
#endif
#ifndef   sys_ip_h
#include "sys_ip.h"
#endif

#if !defined(sys_udp_h) && defined(SUN4)
#include <netinet/udp.h>
#include <netinet/udp_var.h>
#define sys_udp_h
#endif

#endif