TWSocket.LineLimit

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Main page -> ICS component reference -> TWSocket -> LineLimit

Definition

property LineLimit: integer;

Description

LineLimit defines the maximum length a message may have until the delimiter sequence must occur. If not set the sender might provoke a buffer overflow or something similiar.

Example

If the client always sends data lines which end on CR/LF and the server shall display the lines individually in a memo, the server would set LineMode to true so that he always receives whole lines without needing to look for the end of a line himself.

<syntaxhighlight lang="delphi">

 Socket.LineLimit:=100;             // prevent denial of service or buffer 
                                    // overflows
 Socket.LineEnd  :=chr(10)+chr(13); // the sender has to terminate all 
                                    // messages sent with this character 
                                    // combination
 Socket.LineMode:=true;

</syntaxhighlight>

In OnDataAvailable ReceiveStr is used to fetch the available data packet by packet.

Best practices

How to