From 1244d637333db72c62622dd55f845d012be912ab Mon Sep 17 00:00:00 2001
From: Knut Ahlers <knut@ahlers.me>
Date: Tue, 6 Feb 2018 22:59:54 +0100
Subject: [PATCH] Handle error in alias targets

Signed-off-by: Knut Ahlers <knut@ahlers.me>
---
 checkZonefile.py | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/checkZonefile.py b/checkZonefile.py
index fe3fba4..c9c03a9 100644
--- a/checkZonefile.py
+++ b/checkZonefile.py
@@ -55,7 +55,12 @@ def check_entry(zone_name, entry):
             warn('Zone "{}" - Entry "{}" - Unexpected key in entry found: {}'.format(
                 zone_name, entry['name'], k))
 
-    parsed_entries = generator.sanitize(entry)
+    try:
+        parsed_entries = generator.sanitize(entry)
+    except:
+        error('Zone "{}" - Entry "{}" - Alias is not resolvable'.format(
+              zone_name, entry['name']))
+        return
 
     if len(parsed_entries) == 0:
         warn('Zone "{}" - Entry "{}" - Resolved to 0 resource records!'.format(