#include <sys/time.h>
#include <stdio.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>



main(){
   int sock;
   struct sockaddr_in from;
   if (fork()==0) {
      sendProbingMsg(msgsock);
      exit();
   }
   receiveProbingMsg(msgsock);
}