From 6f9662af50d225db30b5db6e69984842280956a3 Mon Sep 17 00:00:00 2001
From: Mirko Geissler <mirko.geissler@artcom.de>
Date: Thu, 11 Aug 2016 13:02:39 +0200
Subject: [PATCH] Allow multiple hyphens in domain names

---
 plugins/common/functions | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/plugins/common/functions b/plugins/common/functions
index dad241b5a..d60357c71 100755
--- a/plugins/common/functions
+++ b/plugins/common/functions
@@ -1065,7 +1065,7 @@ strip_inline_comments() {
 
 is_valid_hostname() {
   declare desc="return 0 if argument is a valid hostname; else return 1"
-  local hostname_string="${1,,}"; local hostname_regex='^(([a-z0-9\*](-?[a-z0-9])*)\.)+([a-z0-9\*](-?[a-z0-9])*)$'
+  local hostname_string="${1,,}"; local hostname_regex='^([a-z0-9\-\*]+\.)*[a-z0-9\-\*]+$'
   if [[ $hostname_string =~ $hostname_regex ]]; then
     return 0
   else