From: Daniel Stenberg <daniel@haxx.se>
Date: Mon, 13 May 2019 16:42:05 +0000 (+0200)
Subject: urlapi: require a non-zero host name length when parsing URL
X-Git-Tag: curl-7_65_0~40
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=9f9ec7da570bf1468eafe611023627c9a2b0b5d2;p=thirdparty%2Fcurl.git

urlapi: require a non-zero host name length when parsing URL

Updated test 1560 to verify.

Closes #3880
---

diff --git a/lib/urlapi.c b/lib/urlapi.c
index c66c07f0a8..0d05f4d92a 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;
 }
 
diff --git a/tests/libtest/lib1560.c b/tests/libtest/lib1560.c
index 5ad7134d0b..a18d56a8ef 100644
--- a/tests/libtest/lib1560.c
+++ b/tests/libtest/lib1560.c
@@ -140,6 +140,9 @@ static struct testcase get_parts_list[] ={
    "file | [11] | [12] | [13] | [14] | [15] | C:\\programs\\foo | [16] | [17]",
    CURLU_DEFAULT_SCHEME, 0, CURLUE_OK},
 #endif
+  /* URL without host name */
+  {"http://a:b@/x", "",
+   CURLU_DEFAULT_SCHEME, 0, CURLUE_NO_HOST},
   {"boing:80",
    "https | [11] | [12] | [13] | boing | 80 | / | [16] | [17]",
    CURLU_DEFAULT_SCHEME, 0, CURLUE_OK},