Writtign to audit with an application

[geckiv]

I was wondering if anyone had a good example of how to write to the 
audit log on linux for a custom application wanting to log events.  Also 
how that would work. I found a little information but I have been unable 
to get anything to work properly.  Does it write to the demon then write 
to the /var/log/auit/audit.log? Also how do yo set this up so not just 
any one or any process write to that log?

Thanks,

Frank