fwb_ipf(1) on Linux
The text c5c3b2498122, as Debian 5.0 (Lenny), Debian 4.0 (Etch), Debian 3.1 (Sarge) shipped it.
Policy compiler for ipfilter
Flags it lists
-
-V -
-d -
-f -
-o -
-v -
-x