#include <stdio.h>
#include <stdlib.h> 
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>
#include <stdlib.h>
#include <time.h>
#include <math.h>
#include <string.h>
#include <unistd.h>

int make_connection(int port, char *machine) { 
        struct sockaddr_in sin; /* internet endpoint address */
        struct hostent  *phe;   /* name of host to which connection desired */
	int descriptor;
	int flag;

        bzero((char *) &sin, sizeof(sin));

        sin.sin_family = AF_INET;
        sin.sin_port = (unsigned short) port;

/* Map hostname to IP address, allowing for dotted decimal */

        phe = gethostbyname(machine);
        bcopy(phe->h_addr, (char*)&sin.sin_addr, phe->h_length);

/* allocate a socket */

        descriptor = socket(AF_INET, SOCK_STREAM, 0);
        if( descriptor < 0 ) {
                printf("cannot allocate socket\n");
                return NULL;
        }

/* Connect the socket */

        flag = connect(descriptor, (struct sockaddr *)&sin, sizeof(sin));
        if(flag < 0) {
                printf("Connect has failed\n");
                return NULL;
        }


	return descriptor;
}