Function winapi::um::winsock2::WSAAsyncGetServByPort

pub unsafe extern "system" fn WSAAsyncGetServByPort(
    hWnd: HWND, 
    wMsg: u_int, 
    port: c_int, 
    proto: *const c_char, 
    buf: *mut c_char, 
    buflen: c_int
) -> HANDLE