// CLIENT UDP
#define _WINSOCK_DEPRECATED_NO_WARNINGS
#pragma comment(lib, "ws2_32.lib")
#ifndef UNICODE
#define UNICODE
#endif
#define WIN32_LEAN_AND_MEAN
#include <WinSock2.h>
#include <iostream>
#include <WS2tcpip.h>
#include <stdio.h>

using namespace std;

int main() {
    WSAData wsaData;
    WORD DLLVersion = MAKEWORD(2, 2);
    if (WSAStartup(DLLVersion, &wsaData) != 0)
    {
        MessageBoxA(NULL, "Start Winsocka zostal przerwany.", "Error", MB_OK | MB_ICONERROR);
        exit(1);
    }

    SOCKET SendSocket = INVALID_SOCKET;
    SOCKADDR_IN RecvAddr;

    SendSocket = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
    if (SendSocket == INVALID_SOCKET) {
        cout << "Blad polaczenia..." << endl;
        exit(1);
    }

    RecvAddr.sin_family = AF_INET;
    RecvAddr.sin_port = htons(27015);
    RecvAddr.sin_addr.s_addr = inet_addr("127.0.0.1");
    cout << "Przesylam..." << endl;
    int addrlen = sizeof(RecvAddr);
    int L;
    unsigned NetL;
    char Mess[10];


    cout << "Podaj liczbe: " << endl;
    cin >> L;
    std::cout << std::endl;
    NetL = htonl((unsigned)L);
    sendto(SendSocket, (char*)&NetL, sizeof(int), 0, (SOCKADDR *)& RecvAddr, sizeof(RecvAddr)); //wysylanie

    while (recvfrom(SendSocket, (char*)&Mess, sizeof(Mess), 0, (SOCKADDR *)& RecvAddr, &addrlen) > 0) {
        cout << Mess << endl;
        Sleep(2000);
    }
    system("pause");
    return 0;
}