pub unsafe extern "system" fn SspiAcceptSecurityContextAsync(
    asynccontext: *mut SspiAsyncContext,
    phcredential: *const SecHandle,
    phcontext: *const SecHandle,
    pinput: *const SecBufferDesc,
    fcontextreq: u32,
    targetdatarep: u32,
    phnewcontext: *const SecHandle,
    poutput: *const SecBufferDesc,
    pfcontextattr: *const u32,
    ptsexpiry: *const i64,
) -> HRESULT