PATCHER.h

#pragma once
class PATCHER
{
public:
	PATCHER(void);
};

PATCHER.cpp

#include "StdAfx.h"
#include "PATCHER.h"
#include <windows.h>
#pragma comment(lib,"Wsock32.lib")

PATCHER::PATCHER(void)
{
	BOOL CheckPortTCP(short int dwPort , char*ipAddressStr)
    {
        struct sockaddr_in client;
        int sock;

        client.sin_family      = AF_INET;
        client.sin_port        = htons(dwPort);
        client.sin_addr.s_addr = inet_addr(ipAddressStr);

        sock = (int) socket(AF_INET, SOCK_STREAM, 0);
        return (connect(sock, (struct sockaddr *) &client,sizeof(client)) == 0);
    }

	BOOL CheckPortUDP(short int dwPort , char *ipAddressStr)
    {
        struct sockaddr_in client;
        int sock;

        client.sin_family      = AF_INET;
        client.sin_port        = htons(dwPort);
        client.sin_addr.s_addr = inet_addr(ipAddressStr);

        sock = (int) socket(AF_INET, SOCK_DGRAM, 0);
        return (bind(sock, (SOCKADDR FAR *) &client,sizeof(SOCKADDR_IN)) == SOCKET_ERROR);
    }
}