*     goes away.
 *
 */
static cackey_ret cackey_send_apdu(struct cackey_slot *slot, unsigned char class, unsigned char instruction, unsigned char p1, unsigned char p2, unsigned int lc, unsigned char *data, unsigned int le, uint16_t *respcode, unsigned char *respdata, size_t *respdata_len) {
	uint8_t major_rc, minor_rc;
	size_t bytes_to_copy, tmp_respdata_len;
	LPCSCARD_IO_REQUEST pioSendPci;
	SCARD_IO_REQUEST pioRecvPci;
	DWORD xmit_len, recv_len;
	LONG scard_xmit_ret, scard_reconn_ret;
	BYTE xmit_buf[1024], recv_buf[1024];
	int pcsc_connect_ret, pcsc_getresp_ret;
	int idx;

	CACKEY_DEBUG_PRINTF("Called.");

	if (class == GSCIS_CLASS_ISO7816 && (instruction == GSCIS_INSTR_VERIFY || instruction == GSCIS_INSTR_CHANGE_REFERENCE) && p1 == 0x00) {
		CACKEY_DEBUG_PRINTF("Sending APDU: <<censored>>");
	} else {
		CACKEY_DEBUG_PRINTBUF("Sending APDU:", xmit_buf, xmit_len);
	}

	recv_len = sizeof(recv_buf);
	memcpy(&pioRecvPci, pioSendPci, sizeof(pioRecvPci));
	scard_xmit_ret = SCardTransmit(slot->pcsc_card, pioSendPci, xmit_buf, xmit_len, &pioRecvPci, recv_buf, &recv_len);

	if (scard_xmit_ret == SCARD_E_NOT_TRANSACTED) {
		CACKEY_DEBUG_PRINTF("Failed to send APDU to card (SCardTransmit() = %s/%lx), will ask calling function to retry (not resetting card)...", CACKEY_DEBUG_FUNC_SCARDERR_TO_STR(scard_xmit_ret), (unsigned long) scard_xmit_ret);

		/* End Smartcard Transaction */
		cackey_end_transaction(slot);

					slot->transaction_need_hw_lock = 1;
					cackey_begin_transaction(slot);
				}

				CACKEY_DEBUG_PRINTF("Reset successful, retransmitting");

				recv_len = sizeof(recv_buf);
				memcpy(&pioRecvPci, pioSendPci, sizeof(pioRecvPci));
				scard_xmit_ret = SCardTransmit(slot->pcsc_card, pioSendPci, xmit_buf, xmit_len, &pioRecvPci, recv_buf, &recv_len);

				if (scard_xmit_ret != SCARD_S_SUCCESS) {
					CACKEY_DEBUG_PRINTF("Retransmit failed, returning in failure after disconnecting the card (SCardTransmit = %s/%li)", CACKEY_DEBUG_FUNC_SCARDERR_TO_STR(scard_xmit_ret), (long) scard_xmit_ret);

					SCardDisconnect(slot->pcsc_card, SCARD_LEAVE_CARD);
					slot->pcsc_card_connected = 0;