public async Task<ApduResponse> QueryApduAsync(ApduRequest request,
CancellationToken cancellationToken = default(CancellationToken))
{
var requestBytes = ApduCodec.EncodeRequest(request);
var responseBytes = await QueryAsync(requestBytes, cancellationToken);
return ApduCodec.DecodeResponse(responseBytes);
}
public static ArraySegment<byte> EncodeRequest(ApduRequest request)
{
if (request.Data.Count > maxDataSize)
{
throw new ArgumentOutOfRangeException(nameof(request), "The data length is too big");
}
var buffer = new byte[7 + request.Data.Count];
using (var stream = new MemoryStream(buffer))
{
stream.WriteByte(0);
stream.WriteByte(request.CommandCode);
stream.WriteByte(request.Parameter1);
stream.WriteByte(request.Parameter2);
Write3ByteIntBigEndian(stream, (uint)request.Data.Count);
stream.Write(request.Data.Array, request.Data.Offset, request.Data.Count);
}
return buffer.Segment();
}
public static ArraySegment <byte> EncodeRequest(ApduRequest request)
{
if (request.Data.Count > maxDataSize)
{
throw new ArgumentOutOfRangeException(nameof(request), "The data length is too big");
}
var buffer = new byte[7 + request.Data.Count];
using (var stream = new MemoryStream(buffer))
{
stream.WriteByte(0);
stream.WriteByte(request.CommandCode);
stream.WriteByte(request.Parameter1);
stream.WriteByte(request.Parameter2);
Write3ByteIntBigEndian(stream, (uint)request.Data.Count);
stream.Write(request.Data.Array, request.Data.Offset, request.Data.Count);
}
return(buffer.Segment());
}
