/*
----------------------------------
whoisclient code
----------------------------------
*/


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

#define USEPORT         16000
#define USEPORT2        16001


main(argc, argv)
int argc;
char *argv[];

{
int s;
int len,i;
int temp;
struct sockaddr_in sa,isa;
struct hostent *hp;
struct servent *sp;
char buf[1000];
char *myname;
char *host;
char *user;

myname = argv[0];
if (argc != 2) {
	fprintf (stderr, "Usage: %s host \n", myname);
	exit(1);
}
host = argv[1];

if((hp = gethostbyname(host)) == NULL) {
	fprintf(stderr, "%s: %s: no such host?\n", myname, host);
	exit(1);
}

bcopy((char *)hp->h_addr, (char *)&sa.sin_addr, hp->h_length);
sa.sin_family = hp->h_addrtype;


sa.sin_port = htons(USEPORT2);

if ((s = socket(hp->h_addrtype, SOCK_DGRAM, 0)) < 0) {
	perror("socket failed");
	exit(1);
}
isa.sin_family = AF_INET ;
isa.sin_addr.s_addr = INADDR_ANY ;
isa.sin_port = htons(USEPORT);

if (bind(s, &isa, sizeof (isa)) < 0) {
	perror ("BIND FAILED");
	exit (1);
}
i = sizeof(sa);
temp = 1;
while ((len = recvfrom(s, buf, 1000, 0,&sa,&i)) > 0){
	write (1, buf, len); 
	if(temp) {
	printf("\n \n \n");
        temp = 0;
        }
        else {
	printf("\n\n\n\n\n\n");
        temp = 1;
        }

}
close(s);
exit(0);
}