Check url whether is NULL in parse_url

Signed-off-by: Jianhui Zhao <jianhuizhao329@gmail.com>
zhaojh329 · Apr 27, 2019 · 0a838be · 0a838be
1 parent 9d4d6b6
commit 0a838be
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/src/utils.c b/src/utils.c
@@ -51,6 +51,9 @@ int parse_url(const char *url, char *host, int host_len,
     const char *host_pos;
     int hl = 0;
 
+    if (!url)
+        return -1;
+
     if (!strncmp(url, "ws://", 5)) {
         *ssl = false;
         url += 5;