#!/bin/bash
#
#iodine    A IP over DNS tunnel
#
# chkconfig: 2345 90 10
# description: A IP over DNS tunnel
### BEGIN INIT INFO
# Provides: iodine
# Should-Start: $network
# Should-Stop: $network
# Default-Start: 2 3 4 5
# Short-Description: A IP over DNS tunnel
# Description: A IP over DNS tunnel 
### END INIT INFO

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

DAEMON_NAME=iodine
DAEMON_PROCESS=$DAEMON_NAME
DAEMON_BINARY=$DAEMON_NAME
LOCK_FILE=/var/lock/subsys/$DAEMON_NAME
RETVAL=0
PID_FILE=/var/run/$DAEMON_NAME.pid

[ -f /etc/sysconfig/$DAEMON_NAME ] && . /etc/sysconfig/$DAEMON_NAME



start() {
    [ -f $LOCK_FILE ] && return
    # do not use -t, as killproc will be unable to kill the daemon
    COMMAND_LINE="$DAEMON_BINARY -u iodine -F $PID_FILE"

    [ -z "$TOPDOMAIN" ] && echo "TOPDOMAIN is not set in /etc/sysconfig/iodine" && return

    [ -n "$PASSWORD" ] && COMMAND_LINE="$COMMAND_LINE -P $PASSWORD"

    [ -n "$MAXFRAGSIZE" ] && COMMAND_LINE="$COMMAND_LINE -m $MAXFRAGSIZE"

    [ -n "$NAMESERVER" ] && COMMAND_LINE="$COMMAND_LINE $NAMESERVER"
 
    COMMAND_LINE="$COMMAND_LINE $TOPDOMAIN"

    gprintf "Starting %s: " "$DAEMON_NAME"
    daemon --pidfile=$PID_FILE $COMMAND_LINE
    RETVAL=$?
    echo
    [ $RETVAL -eq 0 ] && touch $LOCK_FILE
}


stop() {
    gprintf "Shutting down %s: " "$DAEMON_NAME"
    killproc -p $PID_FILE $DAEMON_PROCESS
    RETVAL=$?
    echo
    [ $RETVAL -eq 0 ] && rm -f $LOCK_FILE
}

case "$1" in
    start)
        start
        ;;
    stop)
        stop
        ;;
    status)
        status -p $PID_FILE $DAEMON_PROCESS
        RETVAL=$?
        ;;
    restart)
        stop
        start
        ;;
    condrestart)
        if [ -f $LOCK_FILE ]; then
            stop
            start
        fi
        ;;
    *)
        gprintf "Usage: %s {start|stop|restart|condrestart|status}\n" "$0"
        RETVAL=1
esac

exit $RETVAL