pub unsafe extern "C" fn sgx_qcnl_get_pck_crl_chain(
    ca: *const c_char,
    ca_size: u16,
    custom_param_b64_string: *const c_char,
    p_crl_chain: *mut *mut u8,
    p_crl_chain_size: *mut u16
) -> QcnlError