/// <inheritdoc />
public ErrorCode SCardStatus(IntPtr card, ref State status, ref Protocol protocol)
{
ErrorCode ret;
unsafe
{
var ustatus = (ulong)status;
var uprotocol = (ulong)protocol;
ulong readerNameSize = 0;
ulong atrSize = 0;
ret = UnsafePrimitives.SCardStatus((void *)card, null, &readerNameSize, &ustatus, &uprotocol, null, &atrSize);
status = (State)ustatus;
protocol = (Protocol)uprotocol;
}
return(ret);
}
/// <inheritdoc />
public ErrorCode SCardStatus(IntPtr card, ref IntPtr readerName, ref uint readerNameSize, ref State status, ref Protocol protocol, ref IntPtr atr, ref uint atrSize)
{
ErrorCode ret;
ulong ulreaderNameSize = readerNameSize;
ulong ulatrSize = atrSize;
unsafe
{
var ustatus = (ulong)status;
var uprotocol = (ulong)protocol;
fixed(uint *preaderNameSize = &readerNameSize)
{
fixed(uint *patrSize = &atrSize)
{
if (readerNameSize != AutoAllocate && atrSize != AutoAllocate)
{
ret = UnsafePrimitives.SCardStatus(
(void *)card,
(char *)readerName,
&ulreaderNameSize,
&ustatus,
&uprotocol,
(byte *)atr,
&ulatrSize
);
}
else
{
//TODO
throw new NotImplementedException();
}
status = (State)ustatus;
protocol = (Protocol)uprotocol;
readerNameSize = *preaderNameSize;
atrSize = *patrSize;
}
}
}
readerNameSize = (uint)ulreaderNameSize;
atrSize = (uint)ulatrSize;
return(ret);
}
/// <inheritdoc />
public ErrorCode SCardStatus(IntPtr card, ref string readerName, ref State state, ref Protocol protocol, ref byte[] atr)
{
var atrPtr = IntPtr.Zero;
ulong zReaderNameSize = AutoAllocate;
var zReaderNamePtr = new IntPtr();
ulong atrSize = AutoAllocate;
var ret = UnsafePrimitives.SCardStatus(
card,
ref zReaderNamePtr,
ref zReaderNameSize,
ref state,
ref protocol,
ref atrPtr,
ref atrSize
);
if (zReaderNamePtr == IntPtr.Zero)
{
readerName = "";
}
else
{
var readerStr = Marshal.PtrToStringAuto(zReaderNamePtr, (int)zReaderNameSize - 2);
readerName = readerStr.Split('\0')[0];
}
if (atrPtr == IntPtr.Zero)
{
atr = new byte[0];
}
else
{
atr = new byte[atrSize];
Marshal.Copy(atrPtr, atr, 0, (int)atrSize);
}
return(ret);
}
