/// <summary>
/// Sends a service request to the smart card and expects to receive data back from the card.
/// </summary>
/// <param name="apdu">The SmartCard ADPU command and response object.</param>
/// <returns>adpu</returns>
public SCardAdpu Transmit(SCardAdpu apdu)
{
if (_hContext == IntPtr.Zero)
{
throw new SCardException("No card reader context established. Must call SCard.EstablishContext() first.");
}
if (_hCard == IntPtr.Zero)
{
throw new SCardException("Not connected to card. Must call SCard.Connect() method first.");
}
byte[] send = apdu.GetSendBuffer();
byte[] recv = new byte[apdu.GetReceiveBufferSize()];
int recvLen = recv.Length; // this is an in/out value
SCARD_IO_REQUEST ioRequest = new SCARD_IO_REQUEST();
ioRequest.dwProtocol = (uint)_protocol;
ioRequest.cbPciLength = 8;
IntPtr pioRecvPci = IntPtr.Zero;
Debug.WriteLine("SCardTransmit-ADPU-send: " + ArrayUtils.HexEncode(send));
int rtn = SCardDll.SCardTransmit(_hCard, ref ioRequest, ref send[0], send.Length, pioRecvPci, ref recv[0], ref recvLen);
EvalReturnCode(rtn);
// resize the array if the bytes received are less than the buffer size
if (recvLen < recv.Length)
{
Array.Resize <byte>(ref recv, (int)recvLen);
}
Debug.WriteLine("SCardTransmit-ADPU-recv: " + ArrayUtils.HexEncode(recv));
// update the apdu object with the receive data
apdu.SetReceiveData(recv);
return(apdu);
}
//public static extern int SCardTransmit(IntPtr hCard, [In] ref SCard_IO_Request pioSendPci, [MarshalAs(UnmanagedType.LPArray)] byte[] pbSendBuffer, UInt32 cbSendLength, ref IntPtr pioRecvPci, [MarshalAs(UnmanagedType.LPArray)] byte[] pbRecvBuffer, ref UInt32 pcbRecvLength); public static extern int SCardTransmit(IntPtr hCard, ref SCARD_IO_REQUEST pioSendPci, ref byte pbSendBuffer, int cbSendLength, IntPtr pioRecvPci, ref byte pbRecvBuffer, ref int pcbRecvLength);
//public static extern int SCardTransmit(IntPtr hCard, [In] ref SCard_IO_Request pioSendPci, [MarshalAs(UnmanagedType.LPArray)] byte[] pbSendBuffer, UInt32 cbSendLength, ref IntPtr pioRecvPci, [MarshalAs(UnmanagedType.LPArray)] byte[] pbRecvBuffer, ref UInt32 pcbRecvLength); public static extern int SCardTransmit(IntPtr hCard, ref SCARD_IO_REQUEST pioSendPci, ref byte pbSendBuffer, int cbSendLength, IntPtr pioRecvPci, ref byte pbRecvBuffer, ref int pcbRecvLength);
/// <summary>
/// Sends a service request to the smart card and expects to receive data back from the card.
/// </summary>
/// <param name="apdu">The SmartCard ADPU command and response object.</param>
/// <returns>adpu</returns>
public SCardAdpu Transmit(SCardAdpu apdu)
{
if (_hContext == IntPtr.Zero)
throw new SCardException("No card reader context established. Must call SCard.EstablishContext() first.");
if (_hCard == IntPtr.Zero)
throw new SCardException("Not connected to card. Must call SCard.Connect() method first.");
byte[] send = apdu.GetSendBuffer();
byte[] recv = new byte[apdu.GetReceiveBufferSize()];
int recvLen = recv.Length; // this is an in/out value
SCARD_IO_REQUEST ioRequest = new SCARD_IO_REQUEST();
ioRequest.dwProtocol = (uint)_protocol;
ioRequest.cbPciLength = 8;
IntPtr pioRecvPci = IntPtr.Zero;
Debug.WriteLine("SCardTransmit-ADPU-send: " + ArrayUtils.HexEncode(send));
int rtn = SCardDll.SCardTransmit(_hCard, ref ioRequest, ref send[0], send.Length, pioRecvPci, ref recv[0], ref recvLen);
EvalReturnCode(rtn);
// resize the array if the bytes received are less than the buffer size
if (recvLen < recv.Length)
Array.Resize<byte>(ref recv, (int)recvLen);
Debug.WriteLine("SCardTransmit-ADPU-recv: " + ArrayUtils.HexEncode(recv));
// update the apdu object with the receive data
apdu.SetReceiveData(recv);
return apdu;
}