From 6b53bcf359831bc31d0f92eb851cf67e8e03bda6 Mon Sep 17 00:00:00 2001
From: Sebastian Lohff <seba@someserver.de>
Date: Sat, 14 Jan 2017 00:13:45 +0100
Subject: [PATCH] Socket test if host is online

---
 bin/crawl.py | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/bin/crawl.py b/bin/crawl.py
index 550b525..913f91f 100755
--- a/bin/crawl.py
+++ b/bin/crawl.py
@@ -12,6 +12,7 @@ os.environ.setdefault("DJANGO_SETTINGS_MODULE", "dnmapper.settings")
 import django
 django.setup()
 
+import socket
 import datetime
 from django.utils import timezone
 from django.db.models import Q, Max
@@ -56,6 +57,11 @@ def main():
 			print("%s: %s" % (host, msg))
 			CrawlLog.log(crawl, msg, host=host, severity=CrawlLog.ERROR)
 			continue
+		except socket.error as e:
+			msg = "Could not reach host: %s" % (e,)
+			print("%s: %s" % (host, msg))
+			CrawlLog.log(crawl, msg, host=host, severity=CrawlLog.ERROR)
+			continue
 
 		print(" -- parsing...")