#!/bin/sh
#
# Slackware init script for milter-greylist

# Copyright 2018 Dave Woodfall <dave@slackbuilds.org>
# All rights reserved.
#
# Redistribution and use of this script, with or without modification, is
# permitted provided that the following conditions are met:
#
# 1. Redistributions of this script must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
#
#  THIS SOFTWARE IS PROVIDED BY THE AUTHOR ''AS IS'' AND ANY EXPRESS OR IMPLIED
#  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
#  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
#  EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
#  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
#  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
#  OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
#  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
#  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
#  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

BIN="milter-greylist"
SOCK="/var/milter-greylist/milter-greylist.sock"

start() {
	if [ -e "$SOCK" ]; then
		PID=$(pgrep -x $BIN)
		if [ -n "$PID" ]; then
			printf "%s\n" "$BIN is already running with pid $PID"
			exit 1
		else
			printf "%s\n" "Removing stale socket..."
			rm -vf "$SOCK"
		fi
	fi
	printf "%s\n" "Starting $BIN"
	$BIN
	sleep 2
	PID=$(pgrep -x $BIN)
	if [ -n "$PID" ]; then
		printf "%s\n" "$BIN is running with pid $PID"
	fi
}

stop() {
	printf "%s\n" "Stopping $BIN"
	pkill -x $BIN
	sleep 2
	printf "%s\n" "Removing socket..."
	rm -vf "$SOCK"
}

status() {
	PID=$(pgrep -x $BIN)
	if [ -n "$PID" ]; then
		printf "%s\n" "$BIN is running with pid $PID"
	else
		printf "%s\n" "$BIN is not running"
	fi
}
case "$1" in
	start)
		start
		;;
	stop)
		stop
		;;
	restart)
		stop
		sleep 3 # allow some time to dump the db
		start
		;;
	status)
		status
		;;
	*)
		echo Usage: $0 "{start|stop|restart|status}"
		exit 1
		;;
esac