According to this article from msdn ( http://msdn.microsoft.com/en-us/library/windows/desktop/ms740496(v=vs.85).aspx) the struct varies depending on which protocol is selected!

Now I want to use this code from http://www.intelliproject.net/articles/showArticle/index/check_tcp_udp_port to check if a port is open or not!

Now I have the struct sockaddr as follows:

struct sockaddr {
    ushort  sa_family;
    char    sa_data[14];
};

but need this strcuture:

struct sockaddr {
    short   sin_family;
    u_short sin_port;
    struct  in_addr sin_addr;
    char    sin_zero[8];
};

Which changes are necessary?

(Ws2_32.lib is linked and following includes

#define WIN32_LEAN_AND_MEAN

// sockets
#include "windows.h"
#include <winsock2.h>
#include <ws2tcpip.h>

Thx