add a check to see if an init script is enabled

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@5727 3c298f89-4303-0410-b956-a3cf2f4a3e73

package/base-files/files/etc/rc.common

@@ -41,6 +41,11 @@ enable() {
 	ln -s "/etc/init.d/$name" "$IPKG_INSTROOT/etc/rc.d/S${START}${name##S[0-9][0-9]}"
 }
 
+enabled() {
+	name="$(basename "${initscript}")"
+	[ -x "$IPKG_INSTROOT/etc/rc.d/S${START}${name##S[0-9][0-9]}" ]
+}
+
 depends() {
 	return 0
 }
@@ -77,6 +82,7 @@ eval "case \"\$action\" in
 	boot) boot;;
 	shutdown) shutdown;;
 	enable) enable;;
+	enabled) enabled;;
 	disable) disable;;
 	$cmds
 	*) help;;