didn't find logrotate..

Could I somehow use the Apache rotlogs.nlm outside of Apache to rotate
other log files too?

I need to rotate the dhcpsrvr.log, by size if possible, in order to keep
history of leased ip addresses.

Currently I have a cron job with toolbox copy that just copies few
backup files but it is a bit poor solution.. I didn't even find a way to
include date in the filename (no variables?).