Freeswitch init script (CentOS 5.9)

#!/bin/bash
#
#       /etc/rc.d/init.d/freeswitch
#
#       The FreeSwitch Open Source Voice Platform
#
#  chkconfig: 345 89 14
#  description: Starts and stops the freeswitch server daemon
#  processname: freeswitch
#  config: /usr/local/freeswitch/conf/freeswitch.conf
#  pidfile: /usr/local/freeswitch/run/freeswitch.pid
#

# Source function library.
. /etc/init.d/functions

PROG_NAME=freeswitch
PID_FILE=${PID_FILE-/opt/freeswitch/run/freeswitch.pid}
FS_USER=${FS_USER-freeswitch}
FS_FILE=${FS_FILE-/opt/freeswitch/bin/freeswitch}
FS_HOME=${FS_HOME-/opt/freeswitch}
LOCK_FILE=/var/lock/subsys/freeswitch
FREESWITCH_ARGS="-nc"
RETVAL=0

# Source usr/localions file
if [ -f /etc/sysconfig/freeswitch ]; then
        . /etc/sysconfig/freeswitch
fi

# <define any local shell functions used by the code that follows>

start() {
        echo -n "Starting $PROG_NAME: "
        if [ -e $LOCK_FILE ]; then
            if [ -e $PID_FILE ] && [ -e /proc/`cat $PID_FILE` ]; then
                echo
                echo -n $"$PROG_NAME is already running.";
                failure $"$PROG_NAME is already running.";
                echo
                return 1
            fi
        fi
        cd $FS_HOME
        daemon --user $FS_USER --pidfile $PID_FILE "$FS_FILE $FREESWITCH_ARGS $FREESWITCH_PARAMS >/dev/null 2>&1"
                RETVAL=$?
                echo
        [ $RETVAL -eq 0 ] && touch $LOCK_FILE;
        echo
        return $RETVAL
}

stop() {
        echo -n "Shutting down $PROG_NAME: "
        if [ ! -e $LOCK_FILE ]; then
            echo
            echo -n $"cannot stop $PROG_NAME: $PROG_NAME is not running."
            failure $"cannot stop $PROG_NAME: $PROG_NAME is not running."
            echo
            return 1;
        fi
        cd $FS_HOME
        $FS_FILE -stop > /dev/null 2>&1
        killproc $PROG_NAME
        RETVAL=$?
        echo
        [ $RETVAL -eq 0 ] &&  rm -f $LOCK_FILE;
        return $RETVAL
}

rhstatus() {
        status $PROG_NAME;
}