public Query5250Response(InputByteArray InputArray)
{
InputByteArray buf = null;
if (InputArray.RemainingLength < 58)
{
this.Errmsg = "Insufficient bytes in byte stream for 5250 query response.";
}
if (this.Errmsg == null)
{
this.Length = InputArray.PeekBigEndianShort(0);
if (InputArray.RemainingLength < this.Length)
{
this.Errmsg = "response length exceeds byte stream.";
}
}
if (this.Errmsg == null)
{
this.RawBytes = InputArray.PeekBytes(this.Length);
buf = new InputByteArray(this.RawBytes);
buf.AdvanceIndex(2); // the length
this.cField = buf.GetByte();
var tField = buf.GetByte();
this.RequestCode = tField.ToRequestCode();
this.ResponseByte = buf.GetByte(); // 0x80 fixed code
if ((cField != 0xd9) || (this.RequestCode == null) ||
(this.ResponseByte != 0x80))
{
this.Errmsg = "invalid c Field, t Field or response byte in 5250 "
+ "query response.";
}
}
// isolate other 5250 query response fields.
if (this.Errmsg == null)
{
this.ControlUnitCode = buf.GetBytes(2);
this.CodeLevel = buf.GetBytes(3);
this.Reserve1 = buf.GetBytes(16);
this.WorkstationByte = buf.GetByte();
this.MachineType = buf.GetEbcdicBytes(7);
this.KeyboardId = buf.GetByte();
buf.AdvanceIndex(2);
this.SerialNumber = buf.GetBytes(4);
this.MaxInputFields = buf.GetBigEndianShort();
this.Reserve2 = buf.GetBytes(3);
this.Capabilities = buf.GetBytes(5);
}
// is a valid query 5250 response byte stream. Advance index of input bytes.
if (this.Errmsg == null)
{
InputArray.AdvanceIndex(this.Length);
}
}
private void ProcessAndPostBytesReceived(byte[] recvBytes)
{
// load bytes received from the server into InputArray.
var inputArray = new InputByteArray(recvBytes);
WorkstationCommandList wipCmdList = null;
bool badDataLogged = false;
while (inputArray.IsEof() == false)
{
var rv = ParseAndPostInputArray(inputArray, wipCmdList);
wipCmdList = rv.Item1;
var gotSomething = rv.Item2;
// nothing parsed. And there is data remaining. This is an error.
if ((gotSomething == false) && (inputArray.IsEof() == false))
{
if (badDataLogged == false)
{
LogBadData(inputArray);
badDataLogged = true;
}
inputArray.GetByte(); // advance by 1 byte in byte stream.
}
}
}
public ClearUnitAlternateCommand(InputByteArray InputArray)
: base(InputArray, WorkstationCode.ClearUnitAlternate)
{
if (InputArray.RemainingLength < 3)
{
this.Errmsg = "too few bytes in input stream";
}
if (this.Errmsg == null)
{
InputArray.AdvanceIndex(2);
this.RequestByte = InputArray.GetByte();
}
}
public TelnetCommand(InputByteArray InputArray, CommandCode CmdCode, TelnetSubject Subject)
: this(InputArray, CmdCode)
{
this.Subject = Subject;
this.RawBytes.Append(InputArray.GetByte());
}