1. Determine the location of the rndc* binaries relative to $command

so that when using named from the ports (or elsewhere) the proper rndc*
commands will be run.

2. Rework the stop routine using ideas from brooks and delphij.
Specifically I am duplicating a lot of code from rc.subr's stop routine
so that this one will behave more like the one in rc.subr, but use rndc
to kill the daemon (or regular kill if that fails). This also avoids
the problems related to using killall if rndc fails, which is bad if
you're running more than one named on the same box.

3. Take a concept from gshapiro and allow the rndc.key file to be
owned by root OR the named_uid user.

Although I used different solutions, this commit handles issues raised in:
PR:	conf/73929
PR:	conf/103976
PR:	conf/109409

etc/rc.d/named

@@ -82,20 +82,28 @@ make_symlinks()
 
 named_reload()
 {
-	rndc reload
+	${command%/named}/rndc reload
 }
 
 named_stop()
 {
-	echo -n "Stopping named"
-	if rndc stop 2>/dev/null; then
-		echo .
-	else
-		echo -n ": rndc failed, trying killall: "
-		if killall named; then
-			echo .
-		fi
+	# This duplicates an undesirably large amount of code from the stop
+	# routine in rc.subr in order to use rndc to shut down the process,
+	# and to give it a second chance in case rndc fails.
+	rc_pid=$(check_pidfile $pidfile $command)
+	if [ -z "$rc_pid" ]; then
+		[ -n "$rc_fast" ] && return 0
+		_run_rc_notrunning
+		return 1
 	fi
+	echo 'Stopping named.'
+	if ${command%/named}/rndc stop 2>/dev/null; then
+		wait_for_pids $rc_pid
+	else
+		echo -n 'rndc failed, trying kill: '
+		kill -TERM $rc_pid
+		wait_for_pids $rc_pid
+  	fi
 }
 
 named_poststop()
@@ -121,13 +129,13 @@ named_precmd()
 	if [ -s "${named_chrootdir}/etc/namedb/rndc.conf" ]; then
 		return 0
 	fi
-	confgen_command="rndc-confgen -a -b256 -u $named_uid \
+	confgen_command="${command%/named}/rndc-confgen -a -b256 -u $named_uid \
 	    -c ${named_chrootdir}/etc/namedb/rndc.key"
 	if [ -s "${named_chrootdir}/etc/namedb/rndc.key" ]; then
-		if [ ! `stat -f%Su ${named_chrootdir}/etc/namedb/rndc.key` = \
-		    "$named_uid" ]; then
-			$confgen_command
-		fi
+		case `stat -f%Su ${named_chrootdir}/etc/namedb/rndc.key` in
+		root|$named_uid) ;;
+		*) $confgen_command ;;
+		esac
 	else
 		$confgen_command
 	fi