spieleprogrammierer.de - Forum und Wiki zur Spieleprogrammierung und Spieleentwicklung

C-/C++-Quelltext

#include <stdio.h>
#include <cstdlib>
#include <iostream>
#include <windows.h>
#include <winsock.h>

int StartWinsock();

int main()
{   
    long            Winsock;
    SOCKET          soTest;
    SOCKADDR_IN     soAdress;
    
    if (Winsock = StartWinsock() == 0)
        std::cout << "Winsock erfolgreich gestartet!" << std::endl;
    else {
        std::cout << "Winsock error!!!" << std::endl;
        exit(1);}
        
    if (soTest = socket (AF_INET, SOCK_STREAM, 0) == INVALID_SOCKET) {
        std::cout << "Socketerstellung fehlgeschlagen!" << std::endl;
        exit(1);}
    else
        std::cout << "Socket erfolgreich erstellt!" << std::endl;
        
    // Bis Port 1000 prüfen
    for (unsigned short port=0; port<=1000; port++)
    {       
        memset(&soAdress,0,sizeof(SOCKADDR_IN));                        // Alles auf 0


        soAdress.sin_family=AF_INET;
        soAdress.sin_port=htons(port);                                  // Zielport
        soAdress.sin_addr.s_addr = inet_addr("192.168.111.17");         // Zieladresse
       
        Winsock = connect(soTest,(SOCKADDR*)&soAdress,sizeof(SOCKADDR));
        
        if(Winsock == SOCKET_ERROR) 
            std::cout << "Port " << port << ": " << WSAGetLastError() << std::endl;   
        else    
            std::cout << "Port " << port << " offen\a" << std::endl;
    }
    std::cout << "Alle ports geprueft!\a" << std::endl;
                
    
    system("PAUSE");
    return 0;
}

///////////////////////////////////////////

int StartWinsock()
{
    WSADATA wsa;
    return WSAStartup(MAKEWORD(2,0),&wsa);
}