From: tmerila <tuomas@merila.org>
Date: Wed, 3 Apr 2019 11:28:22 +0000 (+0300)
Subject: Update zone.py
X-Git-Tag: v2.0.0rc1~352^2~1
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b2ce5102bf4224c157060a96253823aab191dadb;p=thirdparty%2Fdnspython.git

Update zone.py

Need to also check that last TTL is known before using it as a fallback, otherwise ttl is never None in the last check, setting it incorrectly to 0 instead.
---

diff --git a/dns/zone.py b/dns/zone.py
index 2b9157b9..7f5cb60d 100644
--- a/dns/zone.py
+++ b/dns/zone.py
@@ -814,7 +814,7 @@ class _MasterReader(object):
                 raise dns.exception.SyntaxError("Missing default TTL value")
             if self.default_ttl_known:
                 ttl = self.default_ttl
-            else:
+            elif self.last_ttl_known:
                 ttl = self.last_ttl
         # Class
         try: