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#!/sbin/openrc-run
# Copyright 1999-2016 Gentoo Authors
# Copyright 2016 - 2019 ng0, lynX 
# Distributed under the terms of the GNU General Public License v2
# SPDX-License-Identifier: GPL2.0

if [ -d /run ] ; then
	PIDFILE=${PIDFILE:-/run/gnunet/arm-service.pid}
else
	PIDFILE=${PIDFILE:-/var/run/gnunet/arm-service.pid}
fi

depend() {
	# FIXME: refine?
	need net
}

GNUNET_PATH="/usr"
GNUNET_HOME="/var/lib/gnunet"
SUID_ROOT_HELPERS="exit nat-server nat-client transport-bluetooth transport-wlan vpn"

chmodown_execbin() {
	if [ -x $1 ]; then
		if [ "$3" ]; then
			chown $3 $1 2>/dev/null && chmod $2 $1
		else
			chmod $2 $1
		fi
	fi
}

checkconfig() {
	if [ -n "$(find ${GNUNET_HOME}/.local/share/gnunet -maxdepth 1 -name gnunet.conf -perm +0044)" ] ; then
		eerror "${conf} must not be world or group readable. Try:"
		eerror "    chmod 600 ${conf}"
		eerror "    chown gnunet:gnunet ${conf}"
		return 1
	fi
	mkdir -p ${GNUNET_HOME}/.cache/gnunet

	# taken from dangole's lede config.. thx!
	local libexec="${GNUNET_PATH}/lib/gnunet/libexec"		# why not /usr/libexec/gnunet ?
	# not reliable enough:
	#[ -e ${libexec}/.permfix ] && return
	for helper in $SUID_ROOT_HELPERS; do
		chmodown_execbin ${libexec}/gnunet-helper-$helper u+s
	done
	chmodown_execbin ${libexec}/gnunet-helper-dns 4750 root:gnunetdns
	chmodown_execbin ${libexec}/gnunet-service-dns 2750 gnunet:gnunetdns
	#touch ${libexec}/.permfix
}

start() {
	checkconfig || return 1

	local piddir=$(dirname ${PIDFILE})
	if [ ! -d ${piddir} ] ; then
		ebegin "Making ${piddir}"
		mkdir -p ${piddir}
		eend $?
		ebegin "Changing permissions of ${piddir}"
		chown gnunet:gnunet ${piddir}
		eend $?
	fi

	ebegin "Starting ${SVCNAME}"
	# shouldn't be necessary... but
	start-stop-daemon --start --user gnunet --name gnunet --pidfile ${PIDFILE} \
	     --exec ${GNUNET_PATH}/lib/gnunet/libexec/gnunet-service-arm -- -d
		# flags to be passed to the process appear after the double-dash
	eend $?
}

stop() {
	ebegin "Stopping ${SVCNAME}"
	start-stop-daemon --stop --signal QUIT --pidfile ${PIDFILE}
	sleep 1
	killall -u gnunet
	sleep 1
	rm -rf /tmp/gnunet-gnunet-runtime >/dev/null 2>&1
	rm -rf /tmp/gnunet-system-runtime >/dev/null 2>&1
	eend $?
}