snort datasctuctures

[snort user <snort_user2004 () yahoo com>]

hi 
 
i was going through the code of snort to understand the data structures that are being used to store the rules and then 
to detect. is there some material where i can get a head start on this? 
 
thanks.

                
---------------------------------
Do you Yahoo!?
Win 1 of 4,000 free domain names from Yahoo! Enter now.