#! /bin/sh
# $Id$
#
# Mon Jun 04 2007 Iñaki Baz Castillo <ibc@in.ilimit.es>
# - Eliminated SAFE_ASTERISK since it doesn't work as LSB script (it could require a independent "safe_asterisk" init script).
# - Load and use the standard "/lib/lsb/init-functions".
# - Added "--oknodo" to "start-stop-daemon" for compatibility with LSB:
#   http://www.linux-foundation.org/spec/refspecs/LSB_3.0.0/LSB-Core-generic/LSB-Core-generic/iniscrptact.html
#
# Thu Nov 17 2005 Gregory Boehnlein <damin@nacs.net>
# - Reversed behavior of LD_ASSUME_KERNEL=2.4.1
# - Added detailed failure messages
#
# Sun Jul 18 2004 Gregory Boehnlein <damin@nacs.net>
# - Added test for safe_asterisk
# - Changed "stop gracefully" to "stop now"
# - Added support for -U and -G command line options
# - Modified "reload" to call asterisk -rx 'reload'

PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
NAME=asterisk
DESC="Asterisk PBX"
# Full path to asterisk binary
DAEMON=__ASTERISK_SBIN_DIR__/asterisk
ASTVARRUNDIR=__ASTERISK_VARRUN_DIR__
ASTETCDIR=__ASTERISK_ETC_DIR__
TRUE=/bin/true

### BEGIN INIT INFO
# Provides:		asterisk
# Required-Start:    $network $syslog $named $local_fs $remote_fs
# Required-Stop:     $network $syslog $named $local_fs $remote_fs
# Should-Start:      dahdi misdn lcr wanrouter mysql postgresql
# Should-Stop:       dahdi misdn lcr wanrouter mysql postgresql
# Default-Start:	2 3 4 5
# Default-Stop:		0 1 6
# Short-Description:	Asterisk PBX
# Description:		the Asterisk Open Source PBX
### END INIT INFO

set -e

if ! [ -x $DAEMON ] ; then
        echo "ERROR: $DAEMON not found"
        exit 0
fi

if ! [ -d $ASTETCDIR ] ; then
        echo "ERROR: $ASTETCDIR directory not found"
        exit 0
fi

# Use the LSB standard functions for services management
. /lib/lsb/init-functions

# Allow configuration overrides in /etc/default/asterisk
CONFIG0=`readlink $0 || :` # readlink returns 1 when something isn't a symlink
if [ "$CONFIG0" = "" ]; then
	CONFIGFILE=/etc/default/`basename $0`
else
	CONFIGFILE=/etc/default/`basename $CONFIG0`
fi
[ -r $CONFIGFILE ] && . $CONFIGFILE

case "$1" in
  start)
	# Check if Asterisk is already running.  If it is, then bug out, because
	# starting up Asterisk when Asterisk is already running is very bad.
	VERSION=`${DAEMON} -rx 'core show version' 2>/dev/null || ${TRUE}`
	if [ "`echo $VERSION | cut -c 1-8`" = "Asterisk" ]; then
		echo "Asterisk is already running.  $0 will exit now."
		exit 0
	fi

	log_begin_msg "Starting $DESC: $NAME"
	if [ ! -d $ASTVARRUNDIR ]; then
		mkdir -p $ASTVARRUNDIR
	fi
	if [ $AST_USER ] ; then
		ASTARGS="-U $AST_USER"
		chown $AST_USER $ASTVARRUNDIR
	fi
	if [ $AST_GROUP ] ; then
		ASTARGS="$ASTARGS -G $AST_GROUP"
		chgrp $AST_GROUP $ASTVARRUNDIR
	fi
	if [ $ALTCONF ]; then
		ASTARGS="$ASTARGS -C $ALTCONF"
	fi
	if [ "x$COREDUMP" = "xyes" ]; then
		ASTARGS="$ASTARGS -g"
	fi
	if [ "0$MAXLOAD" -gt "0" ]; then
		ASTARGS="$ASTARGS -L $MAXLOAD"
	fi
	if [ "0$MAXCALLS" -gt "0" ]; then
		ASTARGS="$ASTARGS -M $MAXCALLS"
	fi
	if [ "0$VERBOSITY" -gt "0" ]; then
		for i in `seq 1 $VERBOSITY`; do
			ASTARGS="$ASTARGS -v"
		done
		# -v implies -f, so we override that implicit specification here
		ASTARGS="$ASTARGS -F"
	fi
	if [ "x$INTERNALTIMING" = "xyes" ]; then
		ASTARGS="$ASTARGS -I"
	fi
	if [ "x$TEMPRECORDINGLOCATION" = "xyes" -o "x$TMPRECORDINGLOCATION" = "xyes" ]; then
		ASTARGS="$ASTARGS -t"
	fi
	if test "x$COLOR" = "xno" ; then
		ASTARGS="$ASTARGS -n"
	fi
	# "start-stop-daemon --oknodo" returns 0 even if Asterisk was already running (as LSB expects):
	start-stop-daemon --start --oknodo --exec $DAEMON -- $ASTARGS
	log_end_msg $?
	;;
  stop)
	log_begin_msg "Stopping $DESC: $NAME"
	# "start-stop-daemon --oknodo" returns 0 even if Asterisk was already stopped (as LSB expects):
	start-stop-daemon --stop --oknodo --exec $DAEMON
	log_end_msg $?
	;;
  reload)
	echo "Reloading $DESC configuration files."
	$DAEMON -rx 'module reload' > /dev/null 2> /dev/null
	;;
  restart|force-reload)
	$0 stop
	sleep 2  # It needs some time to really be stopped.
	$0 start
	# "restart|force-reload" starts Asterisk and returns 0 even if Asterisk was stopped (as LSB expects).
	;;
  status)
       status_of_proc "$DAEMON" "$NAME" && exit 0 || exit $?
       ;;
  *)
	N=/etc/init.d/$NAME
	echo "Usage: $N {start|stop|restart|reload|force-reload|status}" >&2
	exit 1
	;;
esac
