scripts/powerbook_backlight.sh

   1 #!/bin/sh
   2 ###########################################################################
   3 # powerbook_backlight.sh, version 0.1.1
   4 # 2007-10-15
   5 #
   6 # This vlock plugin script switches off the backlight on Apple Powerbook
   7 # laptops while locking. It requires the fblevel utility to be installed.
   8 #
   9 # Copyright (C) 2007 Rene Kuettner <rene@bitkanal.net>
  10 #
  11 # This program is free software; you can redistribute it and/or
  12 # modify it under the terms of the GNU General Public License as
  13 # published by the Free Software Foundation; version 2.
  14 #
  15 # This program is distributed in the hope that it will be useful, but
  16 # WITHOUT ANY WARRANTY; without even the implied warranty of
  17 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18 # General Public License for more details.
  19 #
  20 # You should have received a copy of the GNU General Public License
  21 # along with this program; if not, write to the Free Software
  22 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  23 # 02111-1307  USA
  24 #
  25 ###########################################################################
  26
  27 set -e
  28
  29 DEPENDS="all"
  30
  31 hooks() {
  32   while read hook_name ; do
  33     case "${hook_name}" in
  34       vlock_save)
  35         sudo fblevel off >/dev/null
  36       ;;
  37       vlock_save_abort)
  38         sudo fblevel on >/dev/null
  39       ;;
  40     esac
  41   done
  42 }
  43
  44 if [ $# -ne 1 ] ; then
  45   echo >&2 "Usage: $0 <command>"
  46   exit 1
  47 fi
  48
  49 case "$1" in
  50   hooks)
  51     hooks
  52   ;;
  53   preceeds)
  54     echo "${PRECEEDS}"
  55   ;;
  56   succeeds)
  57     echo "${SUCCEEDS}"
  58   ;;
  59   requires)
  60     echo "${REQUIRES}"
  61   ;;
  62   needs)
  63     echo "${NEEDS}"
  64   ;;
  65   depends)
  66     echo "${DEPENDS}"
  67   ;;
  68   conflicts)
  69     echo "${CONFLICTS}"
  70   ;;
  71   *)
  72     echo >&2 "$0: unknown command '$1'"
  73     exit 1
  74   ;;
  75 esac