From: Daniel Stenberg <daniel@haxx.se>
Date: Wed, 13 Feb 2019 12:20:41 +0000 (+0100)
Subject: strip_trailing_dot: make sure NULL is never used for strlen
X-Git-Tag: curl-7_64_1~133
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=354aa32820914cc95a0a23ce1fc27d2abe1be065;p=curl

strip_trailing_dot: make sure NULL is never used for strlen

scan-build warning: Null pointer passed as an argument to a 'nonnull'
parameter
---

diff --git a/lib/url.c b/lib/url.c
index 46c8fb5fb..335889903 100644
--- a/lib/url.c
+++ b/lib/url.c
@@ -1686,6 +1686,8 @@ static bool is_ASCII_name(const char *hostname)
 static void strip_trailing_dot(struct hostname *host)
 {
   size_t len;
+  if(!host || !host->name)
+    return;
   len = strlen(host->name);
   if(len && (host->name[len-1] == '.'))
     host->name[len-1] = 0;