#! /bin/sh
### BEGIN INIT INFO
# Provides:          osspd
# Required-Start:    $remote_fs $syslog
# Required-Stop:     $remote_fs $syslog
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: OSS Proxy Daemon: Userland OSS emulation
# Description:       Daemon providing a userland implementation of OSS devices.
#                    Currently it supports forwarding OSS sound streams to
#                    PulseAudio and ALSA.
### END INIT INFO

# Author: Ralf Jung <post@ralfj.de>

PATH=/sbin:/usr/sbin:/bin:/usr/bin
DESC="OSS Proxy Daemon"
NAME=osspd
DAEMON=/usr/sbin/$NAME
DAEMON_ARGS="--dsp-slave=/usr/lib/osspd/ossp-slave"
PIDFILE=/var/run/$NAME.pid
SCRIPTNAME=/etc/init.d/$NAME

# Exit if the package is not installed
[ -x "$DAEMON" ] || exit 0

# Define LSB log_* functions.
. /lib/lsb/init-functions

#
# Function that starts the daemon/service
#
do_start()
{
	# Return
	#   0 if daemon has been started
	#   1 if daemon was already running
	#   2 if daemon could not be started
	start-stop-daemon --start --background --quiet --pidfile $PIDFILE --make-pidfile --exec $DAEMON --test > /dev/null \
		|| return 1
	# -f: run in foreground, start-stop-daemon does the forking - this is required to let start-stop-daemon handle the pidfile
	start-stop-daemon --start --background --quiet --pidfile $PIDFILE --make-pidfile --exec $DAEMON -- -f \
		$DAEMON_ARGS \
		|| return 2
}

#
# Function that stops the daemon/service
#
do_stop()
{
	# Return
	#   0 if daemon has been stopped
	#   1 if daemon was already stopped
	#   2 if daemon could not be stopped
	#   other if a failure occurred
	start-stop-daemon --stop --quiet --retry=TERM/30/KILL/5 --pidfile $PIDFILE --name $NAME
	return "$?"
}

case "$1" in
  start)
	log_daemon_msg "Starting $DESC" "$NAME"
	do_start
	case "$?" in
		0|1) log_end_msg 0 ;;
		2) log_end_msg 1 ;;
	esac
	;;
  stop)
	log_daemon_msg "Stopping $DESC" "$NAME"
	do_stop
	case "$?" in
		0|1) log_end_msg 0 ;;
		2) log_end_msg 1 ;;
	esac
	;;
  status)
	status_of_proc "$DAEMON" "$NAME" && exit 0 || exit $?
	;;
  restart|force-reload)
	log_daemon_msg "Restarting $DESC" "$NAME"
	do_stop
	case "$?" in
	  0|1)
		do_start
		case "$?" in
			0) log_end_msg 0 ;;
			1) log_end_msg 1 ;; # Old process is still running
			*) log_end_msg 1 ;; # Failed to start
		esac
		;;
	  *)
		# Failed to stop
		log_end_msg 1
		;;
	esac
	;;
  *)
	echo "Usage: $SCRIPTNAME {start|stop|status|restart|force-reload}" >&2
	exit 3
	;;
esac

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