#!/bin/sh

# Open Infrastructure: service-tools

# Copyright (C) 2014-2024 Daniel Baumann <daniel.baumann@open-infrastructure.net>
#
# SPDX-License-Identifier: GPL-3.0+
#
# 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 <https://www.gnu.org/licenses/>.

set -e

PROGRAM="$(basename "${0}")"

Usage ()
{
	if [ -z "${OPTIONS}" ]
	then
		echo "'${PROGRAM}': incomplete or invalid configuration in /etc/default/dnsdist" >&2
		exit 1
	fi
}

if [ ! -r /etc/dnsdist/dnsdist.conf ]
then
	Usage
fi

CONTROL_SOCKET="$(awk -F\' '/^controlSocket\(/ { print $2 }' /etc/dnsdist/dnsdist.conf)"
KEY="$(awk -F\' '/^setKey\(/ { print $2 }' /etc/dnsdist/dnsdist.conf)"

OPTIONS=""

if [ -n "${CONTROL_SOCKET}" ]
then
	OPTIONS="${OPTIONS} -c ${CONTROL_SOCKET}"
fi

if [ -n "${KEY}" ]
then
	OPTIONS="${OPTIONS} -k ${KEY}"
fi

if [ -z "${OPTIONS}" ]
then
	Usage
fi

# shellcheck disable=SC2086
dnsdist ${OPTIONS}