Created attachment 186100 [details] Changes to rc.d/hostapd and associated man page.
Not really sure if that will work when 2+ interfaces with HOSTAP keyword in rc.conf... Anyway, for now it should work for one hostapd per interface; probably, there should be some keyword (hostapd_group?) for one hostapd instance which can handle more than one interface (hostapd /etc/hostapd-wlan1.conf /etc/hostapd-wlan2.conf ...)
I think that this works now? As far as I can tell, the rc framework now starts a hostapd daemon for each interface configured in hostap mode.