#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <errno.h>
#include <netdb.h>
#include <time.h>
#define PORT 37
#define TIMEDIFF 2208988800UL

int main(int argc, char** argv)
{

	time_t gtime; 
	struct  sockaddr_in AddrServ;
	int SockConnect;
	int iSec =0;

	if ( argc<3)
	{
		printf("Usuage: %s  <IP Address of host>\n", argv[0]);
		exit(EXIT_FAILURE);


	}

	 /* create tcp socket to connect with*/
	 


	 SockConnect = socket(AF_INET, SOCK_DGRAM,0);

	 if (SockConnect <0)
	 {
	 	perror("Socket error: Unable to create");
		exit(EXIT_FAILURE);

	 }
		/* set up the serverr*/

		AddrServ.sin_family = AF_INET; /*tcp/ip*/
		AddrServ.sin_addr.s_addr =inet_addr(argv[1]);/*listen on all interfaces*/
		AddrServ.sin_port = PORT; /*use port 37 to connect*/
		

		memset(&AddrServ.sin_zero, '\0',8);  /*zero padding*/
		/*connect to server*/
		if(sendto(SockConnect,0,0,0,(struct sockaddr*)&AddrServ,sizeof(AddrServ))<0)

		{
				perror("send error");

				exit(EXIT_FAILURE);
		}


	recv(SockConnect, &gtime, sizeof(gtime),0);

	
	if(argc==3)
		iSec=strtol(argv[2],(char**) NULL,10)*3600;  /*use for m68k....(strtol)*/
		gtime=gtime-TIMEDIFF; /* convert to 1970 formatting*/
		gtime=gtime+iSec;   /* to get current time*/
		printf("%s",ctime(&gtime));
	     /*   shutdown(SockConnect,SHUT_RDWR);  close socket*/
		close (SockConnect);
	
		return 0;

}