release/src/router/hotplug2/examples/hotplug2.initscript

   1 #! /bin/sh
   2
   3 # Author: iSteve <isteve@bofh.cz>
   4 #
   5 # Note that this script is untested!
   6
   7 # PATH should only include /usr/* if it runs after the mountnfs.sh script
   8 PATH=/sbin:/bin
   9 DESC="Hotplug2"
  10 NAME=hotplug2
  11 DAEMON=/sbin/$NAME
  12 DAEMON_ARGS="--coldplug --persistent"
  13 PIDFILE=/var/run/$NAME.pid
  14 SCRIPTNAME=/etc/init.d/$NAME
  15
  16 # Load the VERBOSE setting and other rcS variables
  17 [ -f /etc/default/rcS ] && . /etc/default/rcS
  18
  19 # Define LSB log_* functions.
  20 # Depend on lsb-base (>= 3.0-6) to ensure that this file is present.
  21 . /lib/lsb/init-functions
  22
  23 #
  24 # Function that starts the daemon/service
  25 #
  26 do_start()
  27 {
  28         start-stop-daemon --start --quiet --pidfile $PIDFILE --exec $DAEMON --test > /dev/null \
  29                 || return 1
  30         start-stop-daemon --start --quiet --pidfile $PIDFILE --exec $DAEMON -- \
  31                 $DAEMON_ARGS \
  32                 || return 2
  33 }
  34
  35 #
  36 # Function that stops the daemon/service
  37 #
  38 do_stop()
  39 {
  40         start-stop-daemon --stop --quiet --retry=TERM/30/KILL/5 --pidfile $PIDFILE --name $NAME
  41         RETVAL="$?"
  42         [ "$RETVAL" = 2 ] && return 2
  43
  44         start-stop-daemon --stop --quiet --oknodo --retry=0/30/KILL/5 --exec $DAEMON
  45         [ "$?" = 2 ] && return 2
  46         # Many daemons don't delete their pidfiles when they exit.
  47         rm -f $PIDFILE
  48         return "$RETVAL"
  49 }
  50
  51 case "$1" in
  52   start)
  53         [ "$VERBOSE" != no ] && log_daemon_msg "Starting $DESC" "$NAME"
  54
  55         case "$(uname -r)" in
  56             2.[0123].*)
  57                     log_end_msg 0
  58                     exit 1;
  59                     ;;
  60             2.[45].*)
  61                     echo "/sbin/hotplug2-dnode" > /proc/sys/kernel/hotplug
  62                     DAEMON_ARGS=${DAEMON_ARGS}" --set-coldplug-cmd /sbin/hotplug2-coldplug-2.4"
  63                     ;;
  64             *)
  65                     # 2.6 needs no extra flags
  66                     ;;
  67         esac
  68
  69         do_start
  70         case "$?" in
  71                 0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
  72                 2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
  73         esac
  74         ;;
  75   stop)
  76         [ "$VERBOSE" != no ] && log_daemon_msg "Stopping $DESC" "$NAME"
  77         do_stop
  78         case "$?" in
  79                 0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
  80                 2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
  81         esac
  82         ;;
  83   *)
  84         echo "Usage: $SCRIPTNAME {start|stop}" >&2
  85         exit 3
  86         ;;
  87 esac