From d461316625513aa7509f4e906363eec4e3b9af3c Mon Sep 17 00:00:00 2001
From: David Mougeolle <moodule@protonmail.com>
Date: Tue, 7 Jan 2020 23:07:44 +0100
Subject: [PATCH] Comply with mypy

---
 theHarvester/discovery/dnssearch.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/theHarvester/discovery/dnssearch.py b/theHarvester/discovery/dnssearch.py
index 0ab624a2..0a1e07ab 100644
--- a/theHarvester/discovery/dnssearch.py
+++ b/theHarvester/discovery/dnssearch.py
@@ -117,7 +117,7 @@ def run(
             return str(a_record_answer.canonical_name)
 
         except Exception:
-            pass
+            return ''
 
     def process(
             self) -> List[str]:
@@ -135,7 +135,7 @@ def process(
         results = []
         for entry in self._list_ips_in_range():
             host = self.run(entry)
-            if host is not None:
+            if host is not None and host:
                 # print(' : ' + host.split(':')[1])
                 results.append(host)
         return results