From b89444da512cb306c8eccee0c52478002fb8ceca Mon Sep 17 00:00:00 2001
From: Brian Wellington <bwelling@xbill.org>
Date: Tue, 19 May 2020 09:51:37 -0700
Subject: [PATCH] Fix metatype check.

IANA has reserved types 128-255 as meta types, so that range should be
checked.
---
 dns/rdatatype.py | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/dns/rdatatype.py b/dns/rdatatype.py
index 4e401af2..68a5c2b9 100644
--- a/dns/rdatatype.py
+++ b/dns/rdatatype.py
@@ -203,9 +203,7 @@ def is_metatype(rdtype):
     Returns a ``bool``.
     """
 
-    if rdtype >= TKEY and rdtype <= ANY or rdtype in _metatypes:
-        return True
-    return False
+    return (256 > rdtype >= 128) or rdtype in _metatypes
 
 
 def is_singleton(rdtype):
-- 
2.47.3