/// <inheritdoc />
public ErrorCode SCardTransmit(IntPtr card, ref AbstractIoRequest sendPci, byte[] sendBuffer, uint sendSize, ref AbstractIoRequest recvPci, ref byte[] recvBuffer, ref uint recvSize)
{
ErrorCode ret;
var ptrsendPci = Marshal.AllocHGlobal(Marshal.SizeOf(((IoRequest)sendPci).ScIoRequest));
Marshal.StructureToPtr(((IoRequest)sendPci).ScIoRequest, ptrsendPci, true);
var ptrrecvPci = Marshal.AllocHGlobal(Marshal.SizeOf(((IoRequest)recvPci).ScIoRequest));
Marshal.StructureToPtr(((IoRequest)recvPci).ScIoRequest, ptrrecvPci, true);
unsafe
{
if (recvSize == AutoAllocate)
{
// winscard.dll supports SCARD_AUTOALLOCATE only since Windows vista; winscard.dll is able to propose l recvSize to be used with all versions (XP+)
// pcsclite does not support recvBuffer = null, so no automatic discovery of recvSize
// For more portability: Wrapper don't use the native winscard.dll's SCARD_AUTOALLOCATE
recvSize = DefaultBufferSize;
recvBuffer = new byte[recvSize];
fixed(byte *psendBuffer = sendBuffer)
{
fixed(uint *precvSize = &recvSize)
{
fixed(byte *precvBuffer = recvBuffer)
{
ret = UnsafePrimitives.SCardTransmit(
(void *)card,
(void *)ptrsendPci,
psendBuffer,
sendSize,
(void *)ptrrecvPci,
precvBuffer,
precvSize
);
}
}
}
if (ret == ErrorCode.Success)
{
Array.Resize(ref recvBuffer, (int)recvSize);
}
}
else
{
//TODO Seems to be problems with pcsclite in this case...
fixed(byte *psendBuffer = sendBuffer)
{
fixed(uint *precvSize = &recvSize)
{
fixed(byte *precvBuffer = recvBuffer)
{
ret = UnsafePrimitives.SCardTransmit(
(void *)card,
(void *)ptrsendPci,
psendBuffer,
sendSize,
(void *)ptrrecvPci,
precvBuffer,
precvSize
);
}
}
}
}
}
Marshal.FreeHGlobal(ptrsendPci);
Marshal.FreeHGlobal(ptrrecvPci);
return(ret);
}
