Service config of auto start a ssh tunnel

aliyuntunnel

#!/bin/sh
# chkconfig: 2345 20 80
# description: auto build ssh tunnel towards aliyun.wangnan.me


# Source function library.
if [ -f /etc/init.d/functions ] ; then
  . /etc/init.d/functions
elif [ -f /etc/rc.d/init.d/functions ] ; then
  . /etc/rc.d/init.d/functions
else
  exit 1
fi

# Avoid using root's TMPDIR
unset TMPDIR

# Source networking configuration.
. /etc/sysconfig/network

if [ -f /etc/sysconfig/samba ]; then
   . /etc/sysconfig/samba
fi

# Check that networking is up.
[ ${NETWORKING} = "no" ] && exit 1
# Check that smb.conf exists.
[ -f /etc/samba/smb.conf ] || exit 6

SCREENNAME=aliyuntunnel
TUNNELCOMMAND="ssh -R 2233:localhost:22 tunnel@aliyun.wangnan.me"

result(){
    if [ $1 -eq 0 ];then
        echo -e "[\e[1;32mOK\e[0m]"
    else
        echo -e "[\e[1;32mOK\e[0m]"
    fi
}
start() {
    echo -n "Starting aliyuntunnel ..."
    screen -dmS $SCREENNAME $TUNNELCOMMAND
    result $?
}

stop() {
    echo -n "Stoping aliyuntunnel ..."
    screen -X -S $SCREENNAME quit
    result $?
}


restart() {
    stop
    start
}

case "$1" in
  start)
    start
    ;;
  stop)
    stop
    ;;
  restart)
    restart
    ;;
  status)
    screen -ls
    ;;
  *)
    echo $"Usage: $0 {start|stop|restart|status}"
    exit 2
esac

exit $?