pub unsafe extern "system" fn InitializeSecurityContextA(
    phcredential: *const SecHandle,
    phcontext: *const SecHandle,
    psztargetname: *const i8,
    fcontextreq: ISC_REQ_FLAGS,
    reserved1: u32,
    targetdatarep: u32,
    pinput: *const SecBufferDesc,
    reserved2: u32,
    phnewcontext: *mut SecHandle,
    poutput: *mut SecBufferDesc,
    pfcontextattr: *mut u32,
    ptsexpiry: *mut i64,
) -> HRESULT