HAproxy + Stunnel (https) + CentOS 6

#!/bin/bash

# VARIAVEIS
GREP="/bin/grep"
EGREP="/bin/egrep"
PROG="stunnel"
KILLALL="/usr/bin/killall"

# TESTANDO SE EXISTE O ARQUIVO
test -x /usr/bin/stunnel || exit 0
RETVAL=0

########## START ##########
start() {
        if [ ! -f /var/lock/subsys/stunnel ]; then
        /usr/bin/stunnel
                RETVAL=$?
                if [ $RETVAL = 0 ]; then
                        touch /var/lock/subsys/stunnel
                        echo  $"Starting $PROG: OK"
                else
                        exit 1
                fi
        fi
                return $RETVAL
}
stop() {
        if [ -e /var/lock/subsys/stunnel ]; then
        $KILLALL /usr/bin/stunnel
                RETVAL=$?
                if [ $RETVAL = 0 ]; then
                        rm -rf /var/lock/subsys/stunnel
                        echo  $"Stop $PROG: OK"
                else
                        exit 1
                fi
        fi
                return $RETVAL
}
restart(){
         if [ -e /var/lock/subsys/stunnel ]; then
        $KILLALL /usr/bin/stunnel
                RETVAL=$?
                if [ $RETVAL = 0 ]; then
                        rm -rf /var/lock/subsys/stunnel
                        echo  $"Stop $PROG: OK"
                else
                        exit 1
                fi
        fi

        if [ ! -f /var/lock/subsys/stunnel ]; then
        /usr/bin/stunnel
                RETVAL=$?
                if [ $RETVAL = 0 ]; then
                        touch /var/lock/subsys/stunnel
                        echo  $"Starting $PROG: OK"
                else
                        exit 1
                fi
        fi

                return $RETVAL
}
case "$1" in
  start)
        start
        ;;
  stop)
        stop
        ;;
  restart)
        restart
        ;;
  *)
        echo $"ESCOLHA UM ITEM AO LADO: $0 {start|stop|restart}"
        exit 2
esac

exit $?