Index: head/net/relayd/files/relayd.in
===================================================================
--- head/net/relayd/files/relayd.in	(revision 415588)
+++ head/net/relayd/files/relayd.in	(revision 415589)
@@ -1,32 +1,41 @@
 #!/bin/sh
 #
 # $FreeBSD$
 #
 # PROVIDE: relayd
 # REQUIRE: NETWORKING syslogd
 # BEFORE:  DAEMON
 # KEYWORD: shutdown
 
 # Add the following lines to /etc/rc.conf to enable relayd:
 # relayd_enable="YES"
 # relayd_flags="<set as needed>"
 
 . /etc/rc.subr
 
 name=relayd
 rcvar=relayd_enable
 
 load_rc_config $name
 
 : ${relayd_enable="NO"}
 
 command="%%PREFIX%%/sbin/relayd"
 relayctl="%%PREFIX%%/sbin/relayctl"
+start_precmd="relayd_checkconfig"
+reload_precmd="relayd_checkconfig"
+restart_precmd="relayd_checkconfig"
 reload_cmd="relayd_reload_cmd"
 extra_commands="reload"
+
+relayd_checkconfig()
+{
+	echo "Performing sanity check on relayd configuration:"
+	eval ${command} ${relayd_flags} -n
+}
 
 relayd_reload_cmd () {
 	${relayctl} reload
 }
 
 run_rc_command "$1"