From a5586f6b2cac1351833dbc629ee06388b5250dce Mon Sep 17 00:00:00 2001
From: AJ ONeal <aj@daplie.com>
Date: Fri, 6 Oct 2017 19:13:21 -0600
Subject: [PATCH] allow 0 as valid value

---
 packer/type.soa.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packer/type.soa.js b/packer/type.soa.js
index eccb416..40c86d8 100644
--- a/packer/type.soa.js
+++ b/packer/type.soa.js
@@ -15,7 +15,7 @@
 
 exports.DNS_PACKER_TYPE_SOA = function (ab, dv, total, record) {
   function notNumber(n) {
-    return 'number' === typeof n && !isNaN(n);
+    return 'number' !== typeof n || isNaN(n);
   }
 
   if (!record.primary && !record.name_server) {