#!/bin/sh
#
# Copyright 2004-present Facebook. All Rights Reserved.
#
# This program file 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; version 2 of the License.
#
# 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 in a file named COPYING; if not, write to the
# Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor,
# Boston, MA 02110-1301 USA
#
usage() {
    echo "Usage: $0 <on | off>" >&2
}

set -e

if [ "$#" -ne 1 ]; then
    usage
    exit 1
fi

case "$1" in
"on")
    echo "Enabling watchdog. Note: this does not start the watchdog!"
    echo "x" > /dev/watchdog
    ;;
"off")
    echo "Disabling watchdog."
    echo "X" > /dev/watchdog
    ;;
*)
    usage
    exit 1
    ;;
esac
