public TelnetSymbol(TelnetCommands myCommand, TelnetOptions myOption) { _Command = myCommand; _Option = myOption; _TelnetSymbolType = TelnetSymbolTypes.Command; }
public TelnetSymbol(TelnetCommands myCommand, TelnetOptions myOption) { _Command = myCommand; _Option = myOption; _TelnetSymbolType = TelnetSymbolTypes.Command; }
public TelnetSymbol(Byte[] myDataBytes) { _Data = myDataBytes; _TelnetSymbolType = TelnetSymbolTypes.Data; }
public TelnetSymbol(TelnetCommands myCommand) { _Command = myCommand; _TelnetSymbolType = TelnetSymbolTypes.Command; }
public Boolean Parse(Byte[] myBytes) { //List<TelnetSymbol> resolvedSymbols = new List<TelnetSymbol>(); TelnetSymbolTypes lastByteType = TelnetSymbolTypes.Unknown; List <Byte> dataBytes = new List <byte>(); List <Byte> subnegotiationBytes = new List <byte>(); for (Int32 i = 0; i < myBytes.Length; i++) { //As required by the Telnet protocol, any occurrence of 255 in the subnegotiation must be doubled to distinguish it from the IAC character (which has a value of 255) if (myBytes[i] == (Byte)TelnetCommands.Iac || lastByteType == TelnetSymbolTypes.Subnegotiation) { if (lastByteType == TelnetSymbolTypes.Data) { HandleData(dataBytes.ToArray()); HandleKeys(dataBytes.ToArray()); dataBytes.Clear(); } #region Read the next command or subnegotiation data TelnetCommands command; if (lastByteType == TelnetSymbolTypes.Subnegotiation) { command = (TelnetCommands)myBytes[i]; } else { command = (TelnetCommands)myBytes[++i]; } if (lastByteType == TelnetSymbolTypes.Subnegotiation) { if (command != TelnetCommands.Iac || myBytes[i + 1] != (Byte)TelnetCommands.SubnegotiationEnd) { Console.Write(myBytes[i] + ", "); subnegotiationBytes.Add(myBytes[i]); //As required by the Telnet protocol, any occurrence of 255 in the subnegotiation must be doubled to distinguish it from the IAC character (which has a value of 255) if (command == TelnetCommands.Iac && i + 1 < myBytes.Length && myBytes[i + 1] == (Byte)TelnetCommands.Iac) { i++; } continue; } else { command = (TelnetCommands)myBytes[++i]; } } #endregion switch (command) { #region Subnegotiation case TelnetCommands.Subnegotiation: //throw new NotImplementedException("TelnetCommands.Subnegotiation"); Console.WriteLine("TelnetCommands.Subnegotiation"); subnegotiationBytes.Clear(); lastByteType = TelnetSymbolTypes.Subnegotiation; break; case TelnetCommands.SubnegotiationEnd: //throw new NotImplementedException("TelnetCommands.SubnegotiationEnd"); Console.WriteLine("TelnetCommands.SubnegotiationEnd"); HandleSubnegotiation(subnegotiationBytes.ToArray()); lastByteType = TelnetSymbolTypes.Unknown; break; #endregion #region Simple commands without option case TelnetCommands.NoOperation: case TelnetCommands.DataMark: case TelnetCommands.Break: case TelnetCommands.InterruptProcess: case TelnetCommands.AbortOutput: case TelnetCommands.AreYouThere: case TelnetCommands.EraseCharacter: case TelnetCommands.EraseLine: case TelnetCommands.GoAhead: //resolvedSymbols.Add(new TelnetSymbol(command)); lastByteType = TelnetSymbolTypes.Command; HandleTelnetCommand(new TelnetSymbol(command)); break; #endregion #region Option commands case TelnetCommands.Will: case TelnetCommands.Wont: case TelnetCommands.Do: case TelnetCommands.Dont: TelnetOptions option = (TelnetOptions)myBytes[++i]; //resolvedSymbols.Add(new TelnetSymbol(command, option)); lastByteType = TelnetSymbolTypes.Command; HandleTelnetOption(new TelnetSymbol(command, option)); break; #endregion default: throw new NotSupportedException("Not supported command: " + command); } } else { lastByteType = TelnetSymbolTypes.Data; //if (myBytes[i] != (Byte)ASCIIControlCodes.CR && myBytes[i] != (Byte)ASCIIControlCodes.LF) dataBytes.Add(myBytes[i]); } } if (lastByteType == TelnetSymbolTypes.Data && dataBytes.Count > 0) { HandleData(dataBytes.ToArray()); HandleKeys(dataBytes.ToArray()); } return(true); }
public TelnetSymbol(Byte[] myDataBytes) { _Data = myDataBytes; _TelnetSymbolType = TelnetSymbolTypes.Data; }
public TelnetSymbol(TelnetCommands myCommand) { _Command = myCommand; _TelnetSymbolType = TelnetSymbolTypes.Command; }