From 9f9ec7da570bf1468eafe611023627c9a2b0b5d2 Mon Sep 17 00:00:00 2001
From: Daniel Stenberg <daniel@haxx.se>
Date: Mon, 13 May 2019 18:42:05 +0200
Subject: urlapi: require a non-zero host name length when parsing URL

Updated test 1560 to verify.

Closes #3880
---
 lib/urlapi.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'lib')

diff --git a/lib/urlapi.c b/lib/urlapi.c
index c66c07f0a..0d05f4d92 100644
--- a/lib/urlapi.c
+++ b/lib/urlapi.c
@@ -636,6 +636,8 @@ static CURLUcode hostname_check(struct Curl_URL *u, char *hostname)
       /* hostname with bad content */
       return CURLUE_MALFORMED_INPUT;
   }
+  if(!hostname[0])
+    return CURLUE_NO_HOST;
   return CURLUE_OK;
 }
 
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