#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <sys/types.h>
#include <netinet/in.h>
#include <sys/socket.h>
#include <arpa/inet.h>
#include <iostream.h>

#define ERROR -1			// Signifies an error has occured
#define COMM_DOMAIN AF_INET             // Sets up the communication domain
#define PORT_NUMBER 11611294            // Sets up the port number to be used
#define IP_ADDRESS "130.194.166.9"      // Machine to bind to (ie. ant.sd)
#define PROTOCOL 0                      // Use the default Protocol
#define NUMBER_OF_CONNECTIONS 25        // Maximum number of concurrent
					//  connections


struct packet                           // Data structure which is
                                        //  transmitted between the server
                                        //  and client
{
 short returnShort;                     // Equivalent to CORBA::Short
 long returnLong;                       // Equivalent to CORBA::Long
 unsigned short returnUnsignedShort;    // Equivalent to CORBA::UShort
 unsigned long returnUnsignedLong;      // Equivalent to CORBA::ULong
 float returnFloat;                     // Equivalent to CORBA::Float
 double returnDouble;                   // Equivalent to CORBA::Double
 char returnCharacter;                  // Equivalent to CORBA::Char
 char returnBoolean;                    // Equivalent to CORBA::Boolean
 char returnString[70];                 // Equivalent to CORBA::String
 float bFloat;				// Equivalent to CORBA::Float
 double bDouble;			// Equivalent to CORBA::Double
 short bShort;				// Equivalent to CORBA::Short
 long bLong;				// Equivalent to CORBA::bLong
};

main()
{
 int serverId,clientId,clientLen=0;	// Declare the file descriptor
					//  handlers for the server
					//  connection and client
					//  connection

 int nread=0;				// Declare a variable which is used
					//  to record how many bytes were
					//  sent and how many are received

 struct packet aPacket;			// Declare the data structure for
				  	//  transmission

 struct sockaddr_in server;		// Declare a socket structure for
					//  the server

 struct sockaddr_in client;		// Declare a socket structure for
					//  the client

 server.sin_family = COMM_DOMAIN;       // Inform the socket structure of
					//  the communication domain

 server.sin_port = htons(PORT_NUMBER);  // Inform the socket structure of
					//  the port number to be used 
					//  expressed in network byte order

 server.sin_addr.s_addr = inet_addr (IP_ADDRESS); // Set the IP address

					// Try to build a socket
 serverId = socket(COMM_DOMAIN,SOCK_STREAM,PROTOCOL);
 if (serverId == ERROR)
  exit(1);				// Error on building the socket

					// Try and bind the socket to the
					//  system
 if (bind(serverId,(sockaddr*) &server,sizeof(server)) == ERROR)
  exit(1);

					// Start to listen for connections
 if (listen(serverId,NUMBER_OF_CONNECTIONS) == ERROR)
  exit(1);

					// Accept connection
 clientId = accept(serverId,(sockaddr*) &server,&clientLen);
 if (clientId == ERROR)
  exit(1);

 for (int counter=0;counter<10000;counter++)
					// Looping construct for 10,000 times
 {
  nread=read(clientId,&aPacket,sizeof(struct packet)); // Read the data in
  nread=write(clientId,&aPacket,sizeof(struct packet)); // Write the data out
 }
 shutdown(serverId,2);			// Do a full shutdown of the socket
					// upon completion
}