inadyn.init

#!/bin/sh
### BEGIN INIT INFO
# Provides:          inadyn
# Required-Start:    $network $local_fs $remote_fs $syslog
# Required-Stop:     $network $local_fs $remote_fs $syslog
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: DynDNS client
# Description:       Register an Internet name with your IP address
### END INIT INFO

# Author: Timur Birsh <taem@linukz.org>

PATH=/sbin:/usr/sbin:/bin:/usr/bin
DESC="DynDNS client"
NAME=inadyn
DAEMON=/usr/bin/inadyn
CACHEDIR=/run/$NAME
PIDFILE=$CACHEDIR/$NAME.pid
SCRIPTNAME=/etc/init.d/$NAME
DEFAULT=/etc/default/$NAME
CONFIG=/etc/$NAME.conf

[ -x $DAEMON ] || exit 0

[ -r $DEFAULT ] && . $DEFAULT

. /lib/lsb/init-functions

# Set defaults values if no DEFAULT exist
RUN_DAEMON=${RUN_DAEMON:-no}
USER=${USER:-debian-inadyn}
GROUP=${GROUP:-debian-inadyn}

if [ "$RUN_DAEMON" != "yes" ] && [ "$1" != "stop" ]; then
        log_action_msg "$NAME: Not starting. Disabled in $DEFAULT"
        exit 0
fi

DAEMON_ARGS="--pidfile $PIDFILE \
             --config $CONFIG \
             --background \
             --drop-privs $USER:$GROUP"

create_cache_dir() {
    # Create the cache empty dir if necessary
    if [ ! -d $CACHEDIR ]; then
        mkdir $CACHEDIR
        chmod 0755 $CACHEDIR
        chown $USER:$GROUP $CACHEDIR
    fi
}

do_start()
{
        start-stop-daemon --start --quiet --pidfile $PIDFILE --exec $DAEMON --test > /dev/null \
                || return 1
        start-stop-daemon --start --quiet --pidfile $PIDFILE --exec $DAEMON -- \
                $DAEMON_ARGS \
                || return 2
}

do_stop()
{
        start-stop-daemon --stop --quiet --retry=TERM/30/KILL/5 --pidfile $PIDFILE --name $NAME
        RETVAL="$?"
        [ "$RETVAL" = 2 ] && return 2
        rm -f $PIDFILE
        return "$RETVAL"
}

do_reload() {
        start-stop-daemon --stop --signal 1 --quiet --pidfile $PIDFILE --name $NAME
        return 0
}

case "$1" in
  start)
    log_daemon_msg "Starting $DESC " "$NAME"
    create_cache_dir
    do_start
    case "$?" in
                0|1) log_end_msg 0 ;;
                2) log_end_msg 1 ;;
        esac
  ;;
  stop)
        log_daemon_msg "Stopping $DESC" "$NAME"
        do_stop
        case "$?" in
                0|1) log_end_msg 0 ;;
                2) log_end_msg 1 ;;
        esac
        ;;
  status)
       status_of_proc "$DAEMON" "$NAME" && exit 0 || exit $?
       ;;
  reload|force-reload)
        log_daemon_msg "Reloading $DESC" "$NAME"
        do_reload
        log_end_msg $?
        ;;
  restart)
        log_daemon_msg "Restarting $DESC" "$NAME"
        do_stop
        case "$?" in
          0|1)
                do_start
                case "$?" in
                        0) log_end_msg 0 ;;
                        1) log_end_msg 1 ;; # Old process is still running
                        *) log_end_msg 1 ;; # Failed to start
                esac
                ;;
          *)
                # Failed to stop
                log_end_msg 1
                ;;
        esac
        ;;
  *)
        echo "Usage: $SCRIPTNAME {start|stop|status|restart|reload|force-reload}" >&2
        exit 3
        ;;
esac

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