rawsock_utils.h

示范了Unix和Linux下如何利用Raw Socket构造伪装的TCP、IP、UDP的包

extern void tcp_gen(char *packet,unsigned short sport,
                    unsigned short dport,unsigned long seq,
                    unsigned long ack);

extern void udp_gen(char *packet,unsigned short sport,
                    unsigned short dport,unsigned short length);

extern void ip_gen(char *packet,unsigned char protocol,struct in_addr saddr,
            struct in_addr daddr,unsigned short length);

extern unsigned short trans_check(unsigned char proto,
                                  char *packet,
                                  int length,
                                  struct in_addr source_address,
                                  struct in_addr dest_address);