11 Recognised signals

pppd returns 0 for okay and 1 for error. This was not good enough for dwun. As a solution, dwun can use signals from the the dialup scripts to recognise the connection status. Dwun writes its pid to /var/run/dwun.pid5. The following signals are recognised:

SIGHUP

shutdown server.

SIGINT

fatal commandon error, alert users and stop dialing.

SIGUSR1

connection is up and working.

SIGUSR2

bad connection, need to disconnect and redial.