pub unsafe extern "system" fn DsCrackSpn4W(
    pszspn: PCWSTR,
    cspn: u32,
    pchostname: *mut u32,
    hostname: PWSTR,
    pcinstancename: *mut u32,
    instancename: PWSTR,
    pcportname: *mut u32,
    portname: PWSTR,
    pcdomainname: *mut u32,
    domainname: PWSTR,
    pcrealmname: *mut u32,
    realmname: PWSTR
) -> u32