C++ First Winsock Client

// Actual client.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"

#include <sdkddkver.h>
#include <conio.h>
#include <stdio.h>
#include <stdlib.h>

#include <Ws2tcpip.h>
#include <WinSock2.h>
#include <Windows.h>
#include <iostream>
#include <signal.h>


#include <sys\types.h>

#pragma comment(lib, "Ws2_32.lib")
#pragma comment(lib, "Mswsock.lib")
#pragma comment(lib, "AdvApi32.lib")


#define WIN32_LEAN_AND_MEAN

#define DEFAULT_BUFLEN 512
#define DEFAULT_PORT "27015"
#define DEFAULT_LOOPBACK "127.0.0.1"



int _tmain(int argc, _TCHAR* argv[])
{

	WSADATA WSAdata1;
	SOCKET connectSocket = INVALID_SOCKET;
	struct addrinfo *result = NULL;
	struct addrinfo *ptr = NULL;
	struct addrinfo hints;

	char *sendbuf = "This is a test";
	char rcvbuf[DEFAULT_BUFLEN];
	int iResult;
	int recvbuflen = DEFAULT_BUFLEN;

	//validate the parameters
	if (argc != 2)
	{
		printf("Usage server-name %s\n", argv[0]);
		return 1;
	}

	//initialize winsock
	iResult = WSAStartup(MAKEWORD(2, 2), &WSAdata1);
	if (iResult != 0)
	{
		std::cout << "Error initializing Winsock\n";
	}

	ZeroMemory(&hints, sizeof(hints));
	hints.ai_family = AF_INET;
	hints.ai_socktype = SOCK_STREAM;
	hints.ai_protocol = IPPROTO_TCP;

	//Resolve server address and port
	iResult = getaddrinfo(argv[1], DEFAULT_PORT, &hints, &result);	//so default address seems to work? test with tyler
																			//but if anything its a problem with cmd's input mroe than anything
																			//right now
	if (iResult != 0)
	{

		std::cout << "Getaddrinfo failed with: " << WSAGetLastError() << '\n';
		WSACleanup();
		return 1;
	}

	//Connect to first address we fine
	for (ptr = result; ptr != NULL; ptr = ptr->ai_next)
	{
		//create file descriptor
		connectSocket = socket(ptr->ai_family, ptr->ai_socktype, ptr->ai_protocol);
		if (connectSocket == INVALID_SOCKET)
		{
			std::cout << "Error getting file descriptor with : " << WSAGetLastError() << '\n';
			WSACleanup();
			return 1;
		}

		//connect to address
		iResult = connect(connectSocket, ptr->ai_addr, (int)ptr->ai_addrlen);
		if (iResult == SOCKET_ERROR)
		{
			closesocket(connectSocket);
			connectSocket = INVALID_SOCKET;
			continue;
		}
		break;
	}

	freeaddrinfo(result);

	if (connectSocket == INVALID_SOCKET)
	{
		std::cout << "Unable to connect to server...\n";
		WSACleanup();
		return 1;
	}

	//send an initial buffer
	iResult = send(connectSocket, sendbuf, (int)strlen(sendbuf), 0);
	if (iResult == SOCKET_ERROR)
	{
		std::cout << "Error sending information with: " << WSAGetLastError() << '\n';
		closesocket(connectSocket);
		WSACleanup();
		return 1;
	}

	std::cout << "Bytes sent: " << iResult;

	//shutdown connection since no more data will be sent
	iResult = shutdown(connectSocket, SD_SEND);
	if (iResult == SOCKET_ERROR)
	{
		std::cout << "Error shutting down socket with: " << WSAGetLastError() << '\n';
		closesocket(connectSocket);
		WSACleanup();
		return 1;
	}

	//recieve till peer closes connection
	do
	{
		iResult = recv(connectSocket, rcvbuf, recvbuflen, 0);
		if (iResult > 0)
		{
			std::cout << "Bytes recieved: " << iResult;
		}
		else if (iResult == 0)
		{
			std::cout << "Connection closed" << '\n';
		}
		else
		{
			std::cout << "Recievure failure with: " << WSAGetLastError();
		}

	} while (iResult > 0);

	//cleanup
	closesocket(connectSocket);
	WSACleanup();


	char a;
	std::cin >> a;
	return 0;
}