/// <summary>
/// Get data from the socket
/// </summary>
/// <param name="expectLongResponse">flag indicates whether to expect a long response or not</param>
/// <param name="writer">used for writing the response from the server</param>
/// <returns>returns true if the operation was successful and false if an error occured</returns>
private void GetData(bool expectLongResponse, TextWriter writer)
{
int iBytes;
sb.Length = 0;
bool bFirstLine = true;
bool bLookForDotEnd = false;
bool bError = false;
do
{
try
{
// We use Receive so we don't have to wait for timeouts at the
// end of variable-sized responses from the NNTP server.
iBytes = socket.Receive(bRecv, 0, bRecv.Length);
for (int i = 0; i < iBytes; i++)
{
bRecvChars[i] = (char)bRecv[i];
}
writer.Write(bRecvChars, 0, iBytes);
//sb.Append(bRecvChars,0,iBytes);
if (bFirstLine)
{
if (sb.Length >= 3)
{
string codeString = sb.ToString(0, 3);
int code = Convert.ToInt32(codeString);
bFirstLine = false;
if (code < 299)
{
if (expectLongResponse)
{
bLookForDotEnd = true;
}
}
else
{
bError = true;
}
}
}
if (bLookForDotEnd && sb.Length >= 5 && sb.ToString(sb.Length - 5, 5) == "\r\n.\r\n")
{
break;
}
if ((bError || !expectLongResponse) && sb.Length >= 2 && sb.ToString(sb.Length - 2, 2) == "\r\n")
{
break;
}
}
catch (Exception ex)
{
throw new NntpWebException(ex.Message, ex);
}
}while(iBytes > 0);
}