text: #include <stdio.h> 
  #include <pcap.h> 
  #include <arpa/inet.h> 
  #include <time.h> 
  #include <stdlib.h> 
  #include <string.h> 
  #include <unistd.h>
  #include <libnet.h>
  #include <pthread.h>
  
  #define BUFSIZE 1514
  
  #ifndef SEND_RECV_H__
  #define SEND_RECV_H__
  
  
  struct recvPktID{
  	int id;
  };
  
  struct switchMSG{
  	int id;
  	char *sendMSG;
  };
  
  struct sender_info{
  	int num;
  	char *bpf_s;
  	char *send_msg;
  };
  
  
  void send_packet(char *send_msg, int num, char *bpf_send_s);
  void recv_packet(char *recv_msg, int num, char *bpf_recv_s);
  void switch_packet(char *recv_payload,char *send_payload,char *bpf_recv_s,char *bpf_send_s);
  
  #endif
  