flashes gpio led whenever pf logs to pflog0
gpioflicker changes the state of a GPIO pin on startup, on reception of
a signal, or whenever a packet arrives on a network interface.  A
popular application is to flash GPIO-connected LEDs on firewall systems
when packets are blocked.

Maintainer: Johan Fredin <johan@spelaroll.se>

WWW: http://www.pro-bono-publico.de/openbsd/gpio/
