Use:
extract (the future) FreeBSD release package into /usr/local/ -> so your files will be under /usr/local/lldap_server/
save/copy this rc.d script file into /usr/local/etc/rc.d/
finally cat lldap_enable=YES >> /etc/rc.conf
the service script set to run the lldap server as "www" user - make sure the whole lldap_server directory is accessible/runnable by "www". Simplest to run chown -R www:www /usr/local/lldap_server