From 6827b6ad512f359fd6bbca99f560eb86dd1cacd4 Mon Sep 17 00:00:00 2001
From: ValdikSS <iam@valdikss.org.ru>
Date: Sun, 17 Dec 2017 01:46:32 +0300
Subject: [PATCH] Do not add hostnames less than 4 characters long

---
 blackwhitelist.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/blackwhitelist.c b/blackwhitelist.c
index f7b6e8d..b04b6ff 100644
--- a/blackwhitelist.c
+++ b/blackwhitelist.c
@@ -72,6 +72,8 @@ int blackwhitelist_load_list(const char *filename) {
                 line);
             continue;
         }
+        if (strlen(line) < 4)
+            continue;
         if (add_hostname(line))
             cnt++;
     }