#ifndef _UDP_H
#define _UDP_H

/* We need 'uint16_t' and 'uint8_t'  */
#include "types.h"
/* We need 'in_addr' */
#include "in.h"

struct udp_pseudo_hdr {
        in_addr  src;
        in_addr  dest;
        uint8_t  unused;
        uint8_t  protocol;
        uint16_t len;
};
struct udphdr {
        uint16_t src;
        uint16_t dest;
        uint16_t len;
        uint16_t chksum;
};

extern void build_udp_hdr(unsigned long __destip, unsigned int __srcsock, 
              unsigned int __destsock, int __ttl, int __len, 
              const void * __buf);

extern int udp_transmit(unsigned long __destip, unsigned int __srcsock,
                        unsigned int __destsock, int __len, const void * __buf);

#endif  /* _UDP_H */