#include <stdio.h>
#include <stdlib.h>
#include <winsock2.h>
#include <unistd.h>

//Must add followin line to linker parameters: -lws2_32
//links the winsock 2 library

//#define PORT 5000
#define NETWORK_ERROR -1
#define BUFFERSIZE 1

int main(int argc, char *argv[])
{
    //basic declarations
    SOCKET clientSocket;
    SOCKADDR_IN ipAddr;
    WSADATA wsaData;
    int status;
    int port;
    char *dataBuffer = argv[3];
    char readBuffer[BUFFERSIZE];
    //readBuffer[BUFFERSIZE] = *"";

    port = strtoul(argv[2],NULL,0);

    // WSAStartup function initiates use of WS2_32.DLL by a process
    // MAKEWORD(2,2) - use version 2.2 of winsockets
    if((status = WSAStartup(MAKEWORD(2,2), &wsaData)) != 0)
    {
               printf("failed startup\n");
               WSACleanup();
               return NETWORK_ERROR; //starup failed
    }

    if((clientSocket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)) == INVALID_SOCKET)
    {
               printf("invalid socket...");
               WSACleanup();
               return NETWORK_ERROR;
    }

    ipAddr.sin_family = AF_INET;
    ipAddr.sin_port = htons(port);
    ipAddr.sin_addr.s_addr = inet_addr(argv[1]);

    if((connect(clientSocket, (SOCKADDR*)&ipAddr, sizeof(SOCKADDR_IN))) != 0)
    {
               printf("could not connect...\n");
               WSACleanup();
               return NETWORK_ERROR;
    }

    status = send(clientSocket, dataBuffer, strlen(dataBuffer), 0);

    if(status < strlen(dataBuffer))
              printf("data not sent...\n");



    printf("Message received:\n");
    while (recv(clientSocket, readBuffer, BUFFERSIZE, 0) > 0)
    {
              write(1,readBuffer, 1);
    }
    printf("\n");


    closesocket(clientSocket);
    WSACleanup();

  return 0;
}