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#ifndef _IP_H
#define _IP_H
#include "stddef.h"
#include "stdint.h"
#include "in.h"
struct iphdr {
uint8_t verhdrlen;
uint8_t service;
uint16_t len;
uint16_t ident;
uint16_t frags;
uint8_t ttl;
uint8_t protocol;
uint16_t chksum;
struct in_addr src;
struct in_addr dest;
} PACKED;
extern uint16_t tcpudpchksum(struct iphdr *ip);
#endif /* _IP_H */
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