TCP sort

#pragma comment(lib,"ws2_32.lib")
#include <winsock2.h>
#include <iostream>
#include <conio.h>
#include <string>
using namespace std;

void wyswietl(const int *tab, const int n)
{
    cout << "\nDane\n\n";
    for (int i = 0; i < n; i++)
    {
        cout << tab[i] << endl;
    }
}

void sortuj(int *tab, const int size, const int znak)
{
    if( znak > 0)
        for (int i = size - 1; i >= 0; i--)
        {
            int temp = tab[0];
            int id = 0;
            for (int j = 0; j <= i; j++)
            {
                if (temp < tab[j])
                {
                    temp = tab[j];
                    id = j;
                }
            }
            tab[id] = tab[i];
            tab[i] = temp;
        }

    else if(znak <= 0)
        for (int i = size - 1; i >= 0; i--)
        {
            int temp = tab[0];
            int id = 0;
            for (int j = 0; j <= i; j++)
            {
                if (temp > tab[i])
                {
                    temp = tab[i];
                    id = j;
                }
            }
            tab[id] = tab[i];
            tab[i] = temp;
        }
}

int main()
{
    WSADATA Data;
    WSAStartup(MAKEWORD(2,2), &Data);
    sockaddr_in Adr;
    //Adr.sin_addr.s_addr = inet_addr("192.168.0.104");
    Adr.sin_addr.s_addr = inet_addr("127.1.0.0");
    Adr.sin_port = htons(7700);
    Adr.sin_family = AF_INET;
    SOCKET s;
    s = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
    int iResult;
    if(connect(s, (SOCKADDR*)&Adr, sizeof(Adr)) < 0)
    {
        cout << "Blad w polaczeniu do serwera: " << WSAGetLastError();
        _getch();
        shutdown(s, 2);
        closesocket(s);
        WSACleanup();
        return 0;
    }
    char buff[34] = {0};
    int len = recv(s, buff, sizeof(buff), 0);
    buff[len] = '\0';
    cout << buff << endl;

    if(buff[0] == '4')
    {
        cout << "Blad w polaczeniu do serwera: " << WSAGetLastError();
        _getch();
        shutdown(s, 2);
        closesocket(s);
        WSACleanup();
        return 0;
    }

    //send(s, "SORT", sizeof("SORT"), 0);
    signed char znak;
    do
    {
        send(s, (char*)"SORT", sizeof("SORT"), 0);
        iResult = recv(s, (char*)&znak, sizeof(znak), 0);
        if (iResult == SOCKET_ERROR) {
            printf("send failed: %d\n", WSAGetLastError());
            closesocket(s);
            WSACleanup();
            return 1;
        }
        //signed char znak = liczba;
        int size = abs(znak);
        int *tab = new int[size];

        iResult = recv(s, (char*)&(*tab), sizeof(tab) * size, 0);
        if (iResult == SOCKET_ERROR) {
            printf("send failed: %d\n", WSAGetLastError());
            closesocket(s);
            WSACleanup();
            return 1;
        }
        cout << "Dane przed sortowaniem\n\n";
        wyswietl(tab, size);
        int temp;
        int id;

        sortuj(tab, size, znak);
        cout << "Dane po sortowaniu\n\n";
        wyswietl(tab, size);
        ////odesłanie w postaci binarnej
        //iResult = send(s, (char*)tab, sizeof(tab) * size, 0);
        //if (iResult == SOCKET_ERROR) {
        //    printf("send failed: %d\n", WSAGetLastError());
        //    closesocket(s);
        //    WSACleanup();
        //    return 1;
        //}
        //odesłanie w postaci tekstowej

        iResult = send(s, (char*)&(*tab), sizeof(tab) * size, 0);
        if (iResult == SOCKET_ERROR) {
            printf("send failed: %d\n", WSAGetLastError());
            closesocket(s);
            WSACleanup();
            return 1;
        }
        memset(buff, 0, sizeof(buff));
        recv(s, buff, sizeof(buff), 0);
        cout << buff << endl;
        _getch();
    } while (true);

    _getch();
    shutdown(s, 2);
    closesocket(s);
    WSACleanup();
    return 0;
}