ifacedown

#!/bin/bash
# Copyright (C) 2014 Julien Bonjean <julien@bonjean.info>
# Copyright (C) 2014 Alexander Keller <github@nycroth.com>

# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.

# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.

# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

#------------------------------------------------------------------------

# Use the provided interface, otherwise the device used for the default route.
if [[ -n $BLOCK_INSTANCE ]]; then
  IF=$BLOCK_INSTANCE
else
  IF=$(ip route | awk '/^default/ { print $5 ; exit }')
fi

## si pas de réseau dispo, alors IF sera vide : on affiche un réseau down
if [[ $IF == "" ]];
then
  echo " " # full text
  echo " " # short text
  echo \#FF0000 # color
  exit
fi