#include <errno.h>       /* obligatory includes */
#include <signal.h>
#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/wait.h>
#include <netinet/in.h>
#include <netdb.h>
#include "sockets.h"

#define PORT_NUM 50000

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

	char buf[100];
	int socket = -1;
	int x, y;
	char *hostname;
	int portnum;

	if (argc != 3) {
		printf("%s <hostname> <portnum>\n", argv[0]);
		return -1;
	}
	hostname = argv[1];
	sscanf(argv[2], "%d", &portnum);

	if ((socket = call_socket(hostname, portnum)) < 0){
		perror("call_socket");
		exit (1);
	}
	strcpy(buf, "QUERY");
	write_data(socket, buf, strlen(buf)+1);
	printf("client sent \"%s\" to socket %d\n", buf, socket);
	read_string(socket, buf);
	sscanf(buf, "%d %d", &x, &y);
	printf("client received \"%s\" from socket %d\n", buf, socket);
	printf("x = %d, y = %d\n", x, y);
	/* when done with all communication */
	close(socket);
}