Hello, the first QT program i'm writing is a NNTP program to post binaries.
Up to now I managed to connect with the server and to read its response to several commands I give (like 'POST' and 'HELP'). So far so good.
Of course I first try to send a small message with only text in the body, and if this works I can focus on sending binaries.

But I have a problem I don't understand ... when I try to send that message I need to do it as in this code:
Qt Code: 
  2. 	QString CRLF("\n");
  3. 	t.clear();
  4. 	t.append("From: " + userName +  + CRLF);
  5. 	t.append("Newsgroups: " + (comboBox->currentText()) + CRLF);
  6. 	 /// and so on with a few other commands more
  7.  
  8.        tcpSocket->write(t.toAscii().data());  //this writes the data to the socket
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With this code the server returns a '500', meaning it doesn't understand the commands.

Now I found out that if I remove the 'CRLF' the newsserver doesn't complain but of course nothing is posted. And I know from an existing program the cr/lf must be there. Here's a snippet from that c-program I sometimes use, called 'newspost' (but this text based program is no longer maintained for Linux).

Qt Code: 
  1. buff = buff_add(buff, "From: %s\r\n", data->from->data);
  2. 	buff = buff_add(buff, "Newsgroups: %s\r\n", data->newsgroup->data);
  3. 	buff = buff_add(buff, "Subject: %s\r\n", subject);
  4. 	buff = buff_add(buff, "User-Agent: %s\r\n", USER_AGENT);
  5.   // and so on ...
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For the CRLF I tried "\r\n" too ... with the same result.
Here's the routine to read the server, it works without problems.

Qt Code: 
  1. void myQtApp::readHost()
  2. {
  3. 	QMessageBox msgWarn;
  6. 	s.clear();
  7. 	t.clear();
  8. 	s=tcpSocket->readLine();
  9.  
  10. 	switch(s.left(3).toInt()){
  11. 	case 100:
  12. 	t.append("request for help granted");
  13. 	break;
  14. 	case 200:
  15. 	t.append("server ready to receive");
  16. 	break;
  17. 	case 211:
  18. 	t.append("newsgroup valid and selected");
  19. 	break;
  20. 	case 221:
  21. 	t.append("no data follows");
  22. 	break;
  23. 	case 340:
  24. 	postFiles();
  25. 	break;
  26. 	case 500:
  27. 	t.append("wrong command");
  28. 	break;
  29. 	case 501:
  30. 	t.append("wrong syntax after command");
  31. 	break;
  32. 	default:
  33. 	t.append(s.left(3));
  34.         // temporarily messageBox for control
  35. 	msgWarn.warning(this, "server says", s.toAscii().data(), QMessageBox::Ok);
  36. 	break;
  37. 	}
  38.  
  39.       label_status->setText(t);
  40. }
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It puzzles me that the server doesn't accept a carriage return ... well, to be honest I do believe it's my code that is in error, not the server. Or is it something with the tcpSocket?
I'm stuck

All info welcome. Thanks in advance for your reply.