Ejemplo n.º 1
0
// wraps SCardTransmit
func (card *Card) Transmit(cmd []byte) ([]byte, error) {
	var sendpci *C.SCARD_IO_REQUEST
	var recvpci C.SCARD_IO_REQUEST

	switch card.activeProtocol {
	case PROTOCOL_T0:
		sendpci = &C.g_rgSCardT0Pci
	case PROTOCOL_T1:
		sendpci = &C.g_rgSCardT1Pci
	case PROTOCOL_RAW:
		sendpci = &C.g_rgSCardRawPci
	default:
		panic("unknown protocol")
	}

	var recv [C.MAX_BUFFER_SIZE_EXTENDED]byte
	var recvlen C.DWORD = C.DWORD(len(recv))

	r := C.SCardTransmit(card.handle, sendpci, (*C.BYTE)(&cmd[0]), C.DWORD(len(cmd)), &recvpci, (*C.BYTE)(&recv[0]), &recvlen)
	if r != C.SCARD_S_SUCCESS {
		return nil, newError(r)
	}

	rsp := make([]byte, recvlen)
	copy(rsp, recv[0:recvlen])

	return rsp, nil
}
Ejemplo n.º 2
0
// wraps SCardTransmit
func (card *Card) Transmit(cmd []byte) ([]byte, error) {
	var sendpci C.SCARD_IO_REQUEST
	var recvpci C.SCARD_IO_REQUEST

	switch card.activeProtocol {
	case PROTOCOL_T0:
		sendpci.dwProtocol = C.SCARD_PROTOCOL_T0
	case PROTOCOL_T1:
		sendpci.dwProtocol = C.SCARD_PROTOCOL_T1
	default:
		panic("unknown protocol")
	}
	sendpci.cbPciLength = C.sizeof_SCARD_IO_REQUEST

	var recv [C.MAX_BUFFER_SIZE_EXTENDED]byte
	var recvlen C.DWORD = C.DWORD(len(recv))

	r := C.SCardTransmit(card.handle, &sendpci, (*C.BYTE)(&cmd[0]), C.DWORD(len(cmd)), &recvpci, (*C.BYTE)(&recv[0]), &recvlen)
	if r != C.SCARD_S_SUCCESS {
		return nil, scardError(r)
	}

	rsp := make([]byte, recvlen)
	copy(rsp, recv[0:recvlen])

	return rsp, nil
}