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#!/bin/sh
# This file is part of cloud-init. See LICENSE file for license information.
# This script is used on non-systemd systems. It is called by the
# cloud-init-hotplug init.d script.
#
# Creates a named pipe and then continually listens to this pipe. The pipe
# is written to by the hook-hotplug script (which is called by a udev rule
# upon a network device event). Anything received via the pipe is then
# passed on via the "cloud-init devel hotplug-hook handle" command.
PIPE="/run/cloud-init/share/hook-hotplug-cmd"
[ -p $PIPE ] || mkfifo -m700 $PIPE
while true; do
# shellcheck disable=SC2162
if read args < $PIPE; then
# shellcheck disable=SC2086
/usr/bin/cloud-init devel hotplug-hook $args
fi
done
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