From ee6314cb101293a0884247f012ed3e4974826b6b Mon Sep 17 00:00:00 2001
From: Yuan Bai <bybai@cn.ibm.com>
Date: Fri, 27 Jul 2018 17:00:36 +0800
Subject: [PATCH] enhance lsdef Noderange format error (#5442)

* Enhancement for handling lsdef node-range format error
---
 xCAT-server/lib/xcat/plugins/DBobjectdefs.pm | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/xCAT-server/lib/xcat/plugins/DBobjectdefs.pm b/xCAT-server/lib/xcat/plugins/DBobjectdefs.pm
index 1bb2901a5..b1198b346 100755
--- a/xCAT-server/lib/xcat/plugins/DBobjectdefs.pm
+++ b/xCAT-server/lib/xcat/plugins/DBobjectdefs.pm
@@ -765,6 +765,14 @@ sub processArgs
                 #    then set noderange
                 if (($::command ne 'mkdef') && ($a =~ m/^\//))
                 {
+                    eval { /$a/ };
+                    if ($@)
+                    {
+                        my $rsp = {};
+                        $rsp->{data}->[0] = "Invalid regular expression $a, check the noderange syntax.";
+                        xCAT::MsgUtils->message("E", $rsp, $::callback);
+                        return 3;
+                    }
                     @::noderange = &noderange($a, 1); # Use the "verify" option to support regular expression
                 }
                 else