Rules specify that a particular chunk of text is either required or forbidden.
Once all rules have been checked, a report is output listing violations. An exploit for a buffer overrun in the AFS dissector was recently released on BugTraq. Other dissectors were updated as well. Be sure to upgrade to 0.8.14 as soon as possible. You may be wondering what is going on with technotronic and why the updates have slowed down to a trickle.