etc/rc.shutdown

   1 #!/bin/sh
   2 #
   3 # $NetBSD: rc.shutdown,v 1.9 2012/06/25 07:22:45 jnemeth Exp $
   4 #
   5 # rc.shutdown --
   6 #       Run the scripts in /etc/rc.d with reverse rcorder.
   7
   8 #       System shutdown script run by shutdown(8) at system shutdown time.
   9 #       Note that halt(8) and reboot(8) do NOT invoke this script.
  10
  11 export HOME=/
  12 export PATH=/sbin:/bin:/usr/sbin:/usr/bin
  13
  14 . /etc/rc.subr
  15 . /etc/rc.conf
  16
  17 if ! checkyesno do_rcshutdown; then
  18         echo "Skipping shutdown hooks."
  19         exit 0
  20 fi
  21
  22 stty status '^T'
  23
  24 #       Set shell to ignore SIGINT, but not children;
  25 #       shell catches SIGQUIT and returns to single user.
  26 #
  27 trap : INT
  28 trap "echo 'Shutdown interrupted.'; exit 1" QUIT
  29
  30 #       If requested, start a watchdog timer in the background which
  31 #       will terminate rc.shutdown if rc.shutdown doesn't complete
  32 #       within the specified time.
  33 #
  34 _rcshutdown_watchdog=
  35 if [ -n "$rcshutdown_timeout" ]; then
  36         sleep $rcshutdown_timeout && (
  37             _msg="$rcshutdown_timeout second watchdog timeout expired. Shutdown terminated."
  38             logger -t rc.shutdown "$_msg"
  39             echo "$_msg"
  40             date
  41             kill -KILL $$ >/dev/null 2>&1
  42             ) &
  43         _rcshutdown_watchdog=$!
  44 fi
  45
  46
  47 #       Determine the shutdown order of the rc.d scripts,
  48 #       and perform the operation
  49 #
  50 scripts=$(for rcd in ${rc_directories:-/etc/rc.d}; do
  51         test -d ${rcd} && echo ${rcd}/*; done)
  52 files=$(rcorder -k shutdown ${rcshutdown_rcorder_flags} ${scripts})
  53
  54 for _rc_elem in $(reverse_list $files); do
  55         run_rc_script $_rc_elem stop
  56 done
  57
  58
  59 #       Terminate the background watchdog timer (if it is running)
  60 #
  61 if [ -n "$_rcshutdown_watchdog" ]; then
  62         kill -TERM $_rcshutdown_watchdog >/dev/null 2>&1
  63 fi
  64
  65 date
  66 exit 0