#!/bin/sh
#
# ex:ts=4:sw=4:noet
#-*- mode: makefile; tab-width: 4; -*-
#
# $FreeBSD$

SPAMDUSER=_spamd
SPAMDGROUP=_spamd
FILE="/etc/services"

check_db() {
	DB=/var/db/spamd
	if [ -f ${DB} ]; then
		OWN=$(stat -f "%Su" ${DB})
		GRP=$(stat -f "%Sg" ${DB})
		if [ "x${OWN}" != "x${SPAMDUSER}" ]; then
			echo "==> chown ${SPAMDUSER} ${DB} (previous ${OWN})"
				chown ${SPAMDUSER} ${DB}
		fi
		if [ "x${GRP}" != "x${SPAMDGROUP}" ]; then
			echo "==> chgrp ${SPAMDGROUP} ${DB} (previous ${GRP})"
			chgrp ${SPAMDGROUP} ${DB}
		fi
	fi
}

check_service() {
	local SERVICE PORT PROTO COMMENT

	SERVICE=$1
	PORT=$2
	PROTO=$3
	COMMENT=$4

	# check
	OK=no
	HAS_SERVICE=no
	COUNT=1
	for i in $(grep ^${SERVICE} ${FILE}); do
		if [ ${COUNT} -eq 1 ] && [ x"${i}" = x"${SERVICE}" ]; then
			HAS_SERVICE=yes
		elif [ ${COUNT} -eq 2 ] && [ "${HAS_SERVICE}" = "yes" ] && \
			[ x"${i}" = x"${PORT}/${PROTO}" ]; then
			OK=yes
			break
		fi
		COUNT=$(( ${COUNT} + 1 ))
	done
	# add an entry for SERVICE to /etc/services
	if [ "${OK}" = "no" ]; then
		echo "==> add entry \"${SERVICE} ${PORT}/${PROTO}\""
		(
			grep -v -e "^${SERVICE}.*${PORT}/${PROTO}" ${FILE}
			echo "${SERVICE}	${PORT}/${PROTO}   # ${COMMENT}"
		) >> ${FILE}.new
		mv ${FILE}.new ${FILE}
	fi
}

# always add service entries
if [ "$2" = "PRE-INSTALL" ]; then
	echo "Checking ${FILE} for missing service entries"
	[ ! -f ${FILE} ] && echo "==> cannot find ${FILE} ... => exit" &&  exit 1
	check_service spamd 8025 tcp "spamd(8)"
	check_service spamd-sync 8025 udp "spamd(8) synchronisation"
	check_service spamd-cfg 8026 tcp "spamd(8) configuration"
fi

if [ "$2" = "POST-INSTALL" ]; then
	check_db
fi
