/// <summary>
/// Sends an APDU to the smartcard.
/// </summary>
/// <param name="apdu">The apdu to send to the smartcard.</param>
/// <returns>An ApduReply instance, representing the reply from the smartcard.</returns>
/// <exception cref="ObjectDisposedException">The SmartcardReader has been closed.</exception>
/// <exception cref="ArgumentNullException"><i>apdu</i> is a null reference.</exception>
/// <exception cref="SmartcardException">An error occurred while communication with the smartcard reader.</exception>
public ApduReply SendCommand(ApduCommand apdu) {
if (m_Disposed)
throw new ObjectDisposedException(this.GetType().FullName);
if (apdu == null)
throw new ArgumentNullException("apdu", ResourceController.GetString("Error_ParamNull"));
if (m_Card == IntPtr.Zero)
throw new SmartcardException(ResourceController.GetString("Error_SmartcardNotConnected"));
SCARD_IO_REQUEST sendPci = new SCARD_IO_REQUEST(m_ActiveProtocol, 8);
byte[] buffer = new byte[1024];
int recvSize = buffer.Length;
// send the message to the smart card
int ret = NativeMethods.SCardTransmit(m_Card, ref sendPci, apdu.InternalBytes, apdu.InternalLength, IntPtr.Zero, buffer, ref recvSize);
if (ret != NativeMethods.SCARD_S_SUCCESS || recvSize < 2)
throw new SmartcardException(ResourceController.GetString("Error_SmartcardTransmit"), ret);
byte[] result = new byte[recvSize - 2];
Array.Copy(buffer, 0, result, 0, result.Length);
byte[] status = new byte[2];
Array.Copy(buffer, recvSize - status.Length, status, 0, status.Length);
return new ApduReply(status, result);
}
internal static extern int SCardTransmit(IntPtr hCard, ref SCARD_IO_REQUEST pioSendPci, byte[] pbSendBuffer, int cbSendLength, IntPtr pioRecvPci, byte[] pbRecvBuffer, ref int pcbRecvLength);
internal static extern int SCardTransmit(IntPtr hCard, ref SCARD_IO_REQUEST pioSendPci, byte[] pbSendBuffer, int cbSendLength, IntPtr pioRecvPci, byte[] pbRecvBuffer, ref int pcbRecvLength);
