/// <summary>
/// Reads the full COTP TSDU (Transport service data unit)
/// See: https://tools.ietf.org/html/rfc905
/// </summary>
/// <param name="stream">The stream to read from</param>
/// <returns>Data in TSDU</returns>
public static async Task <byte[]> ReadAsync(Stream stream)
{
var segment = await TPDU.ReadAsync(stream);
if (segment == null)
{
return(null);
}
var buffer = new byte[segment.Data.Length];
var output = new MemoryStream(buffer);
output.Write(segment.Data, 0, segment.Data.Length);
while (!segment.LastDataUnit)
{
segment = await TPDU.ReadAsync(stream);
Array.Resize(ref buffer, buffer.Length + segment.Data.Length);
var lastPosition = output.Position;
output = new MemoryStream(buffer);
output.Write(segment.Data, (int)lastPosition, segment.Data.Length);
}
return(buffer.Take((int)output.Position).ToArray());
}
/// <summary>
/// Reads the full COTP TSDU (Transport service data unit)
/// See: https://tools.ietf.org/html/rfc905
/// </summary>
/// <param name="stream">The stream to read from</param>
/// <returns>Data in TSDU</returns>
public static async Task <byte[]> ReadAsync(Stream stream, CancellationToken cancellationToken)
{
var segment = await TPDU.ReadAsync(stream, cancellationToken).ConfigureAwait(false);
if (segment.LastDataUnit)
{
return(segment.Data);
}
// More segments are expected, prepare a buffer to store all data
var buffer = new byte[segment.Data.Length];
Array.Copy(segment.Data, buffer, segment.Data.Length);
while (!segment.LastDataUnit)
{
segment = await TPDU.ReadAsync(stream, cancellationToken).ConfigureAwait(false);
var previousLength = buffer.Length;
Array.Resize(ref buffer, buffer.Length + segment.Data.Length);
Array.Copy(segment.Data, 0, buffer, previousLength, segment.Data.Length);
}
return(buffer);
}
/// <summary>
/// Reads the full COTP TSDU (Transport service data unit)
/// See: https://tools.ietf.org/html/rfc905
/// </summary>
/// <param name="stream">The stream to read from</param>
/// <returns>Data in TSDU</returns>
public static byte[] Read(Stream stream)
{
var segment = TPDU.Read(stream);
if (segment == null)
{
return(null);
}
var buffer = new byte[segment.Data.Length];
var output = new MemoryStream(buffer);
output.Write(segment.Data, 0, segment.Data.Length);
while (!segment.LastDataUnit)
{
segment = TPDU.Read(stream);
Array.Resize(ref buffer, buffer.Length + segment.Data.Length);
var lastPosition = output.Position;
output.Dispose();
output = null;
output = new MemoryStream(buffer);
output.Write(segment.Data, (int)lastPosition, segment.Data.Length);
}
var result = buffer.Take((int)output.Position).ToArray();
output.Dispose();
output = null;
buffer = null;
return(result);
}
/// <summary>
/// Reads the full COTP TSDU (Transport service data unit)
/// See: https://tools.ietf.org/html/rfc905
/// </summary>
/// <returns>Data in TSDU</returns>
public static byte[] Read(Socket socket)
{
var segment = TPDU.Read(socket);
if (segment == null)
{
return(null);
}
var output = new MemoryStream(segment.Data.Length);
output.Write(segment.Data, 0, segment.Data.Length);
while (!segment.LastDataUnit)
{
segment = TPDU.Read(socket);
output.Write(segment.Data, (int)output.Position, segment.Data.Length);
}
return(output.GetBuffer());
}
/// <summary>
/// Reads the full COTP TSDU (Transport service data unit)
/// See: https://tools.ietf.org/html/rfc905
/// </summary>
/// <param name="stream">The stream to read from</param>
/// <returns>Data in TSDU</returns>
public static async Task <byte[]> ReadAsync(Stream stream)
{
var segment = await TPDU.ReadAsync(stream);
if (segment == null)
{
return(null);
}
var output = new MemoryStream(segment.Data.Length);
output.Write(segment.Data, 0, segment.Data.Length);
while (!segment.LastDataUnit)
{
segment = await TPDU.ReadAsync(stream);
output.Write(segment.Data, (int)output.Position, segment.Data.Length);
}
return(output.GetBuffer().Take((int)output.Position).ToArray());
}
/// <summary>
/// Reads the full COTP TSDU (Transport service data unit)
/// See: https://tools.ietf.org/html/rfc905
/// </summary>
/// <param name="stream">The stream to read from</param>
/// <returns>Data in TSDU</returns>
public static byte[] Read(Stream stream)
{
var segment = TPDU.Read(stream);
if (segment.LastDataUnit)
{
return(segment.Data);
}
// More segments are expected, prepare a buffer to store all data
var buffer = new byte[segment.Data.Length];
Array.Copy(segment.Data, buffer, segment.Data.Length);
while (!segment.LastDataUnit)
{
segment = TPDU.Read(stream);
var previousLength = buffer.Length;
Array.Resize(ref buffer, buffer.Length + segment.Data.Length);
Array.Copy(segment.Data, 0, buffer, previousLength, segment.Data.Length);
}
return(buffer);
}
static void Main(string[] args)
{
APDU myApdu = new APDU();
TPDU myTpdu = new TPDU();
List <byte> dnpPkt = new List <byte>();
//params should be in the following order
//confirm, unsolicited, function, group, variation, prefixQualifier, [range] OR [start index, stop index]
myApdu.buildAPDU(ref dnpPkt, 0x00, 0x00, 0x02, 0x0A, 0x02, 0x00, 0x00, 0x02, 0x01, 0x01, 0x01);
myTpdu.buildTPDU(ref dnpPkt);
DPDU myDpdu = new DPDU();
//List<byte> dpdu = new List<byte>();
/*dpdu.Add(0x05);
* dpdu.Add(0x64);
* dpdu.Add(0x05);
* dpdu.Add(0xF2);
* dpdu.Add(0x01);
* dpdu.Add(0x00);
* dpdu.Add(0xEF);
* dpdu.Add(0xFF);*/
myDpdu.buildDPDU(ref dnpPkt, 0xC4, 1, 65519); //dst=1, src=65519
foreach (byte element in dnpPkt)
{
Console.Write(element.ToString("X2") + " ");
}
Console.ReadLine();
}