#! /bin/sh
#
### BEGIN INIT INFO
# Provides:          eraagent
# Required-Start:    $remote_fs $syslog $network
# Required-Stop:     $remote_fs $syslog $network
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: ESET Management Agent
#
### END INIT INFO
#
# chkconfig: 2345 99 1
# description: ESET Management Agent
#
# Copyright (c) 2025 ESET, spol. s r.o.

PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
DESC="ESET Management Agent"
NAME=ERAAgent
DAEMON=/opt/eset/RemoteAdministrator/Agent/$NAME
PIDFILE=/var/run/eraagent.pid
DAEMON_ARGS="--daemon --pidfile=${PIDFILE}"

# Exit if the package is not installed
[ -x "$DAEMON" ] || exit 0

# Load the VERBOSE setting and other rcS variables
if [ -f /lib/init/vars.sh ]; then
	. /lib/init/vars.sh
fi

log_daemon_msg () { ERASTART="$1"; }
log_end_msg () { [ "$1" = 0 ] && log_success_msg "$ERASTART" || log_failure_msg "$ERASTART failed!"; }
status () { pidofproc "$@" >/dev/null; }
status_of_proc () { status "$1" "$2" "$3"; }

if [ -f /etc/init.d/functions ]; then
	. /etc/init.d/functions
	log_daemon_msg () { echo -n "$1"; }
	log_end_msg () { [ "$1" = 0 ] && success || failure; echo; }
elif [ -f /etc/rc.status ]; then
	. /etc/rc.status
	rc_reset
	log_daemon_msg () { echo -n "$1"; }
	log_end_msg () { [ "$1" = 0 ] && true || false; rc_status -v; }
	status () { echo -n "Checking for $DESC"; checkproc "$@"; rc_status -v; rc_exit; }
elif [ -f /lib/lsb/init-functions ]; then
	. /lib/lsb/init-functions
else
	log_success_msg () { echo "$@"; }
	log_failure_msg () { echo "$@"; }
	pidofproc () {
		if [ -e "$PIDFILE" ]; then
			read P < "$PIDFILE"
			if kill -0 "$P" 2>/dev/null; then
				echo $P
				return 0
			else
				return 1
			fi
		fi
		return 3
	}
fi


do_start()
{
	# Return
	#   0 if daemon has been started
	#   1 if daemon was already running
	#   2 if daemon could not be started

	P=`pidofproc -p $PIDFILE $DAEMON`
	if [ "$?" != "0" ]; then
		if ! $DAEMON $DAEMON_ARGS; then
			RETVAL=2
		else
			RETVAL=0
		fi
	else
		RETVAL=1
	fi

	return "$RETVAL"
}


do_stop()
{
	# Return
	#   0 if daemon has been stopped
	#   1 if daemon was already stopped
	#   2 if daemon could not be stopped
	#   other if a failure occurred

	P=`pidofproc -p $PIDFILE $DAEMON`
	if [ "$?" = "0" ]; then
		kill -TERM $P
		while kill -0 $P 2>/dev/null; do sleep 1; done
		RETVAL=0
	else
		RETVAL=1
	fi

	rm -f $PIDFILE
	return "$RETVAL"
}




case "$1" in
	start)
		log_daemon_msg "Starting $DESC"
		do_start
		case "$?" in
			0|1) log_end_msg 0 ;;
			2)   log_end_msg 1 ;;
		esac
		;;
	stop)
		log_daemon_msg "Stopping $DESC"
		do_stop
		case "$?" in
			0|1) log_end_msg 0 ;;
			2)   log_end_msg 1 ;;
		esac
		;;
	status)
		status_of_proc "$DAEMON" "$DESC" && exit 0 || exit $?
		;;
	restart|force-reload)
		log_daemon_msg "Stopping $DESC"
		do_stop
		case "$?" in
			0|1)
			log_end_msg 0
			log_daemon_msg "Starting $DESC"
			do_start
			case "$?" in
				0) log_end_msg 0 ;;
				1) log_end_msg 1 ;; # Old process is still running
				*) log_end_msg 1 ;; # Failed to start
			esac
			;;
		*)
			# Failed to stop
			log_end_msg 1
			;;
		esac
		;;
	*)
		echo "Usage: $0 {start|stop|status|restart|force-reload}" >&2
		exit 3
		;;
esac

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