From b2e6ef7bebff632fc64e10bdb03b5da02817d172 Mon Sep 17 00:00:00 2001
From: Valentin Bartenev <vbart@nginx.com>
Date: Wed, 20 May 2020 11:18:03 +0300
Subject: [PATCH] Static: fixed potential undefined behavior in memcpy().

According to the C standard, pointer arguments passed to memcpy() calls shall
still have valid values.  NULL is considered as invalid.

Found with GCC Static Analyzer.
---
 src/nxt_http_static.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/nxt_http_static.c b/src/nxt_http_static.c
index 46ae57a7..ee18be1b 100644
--- a/src/nxt_http_static.c
+++ b/src/nxt_http_static.c
@@ -76,7 +76,7 @@ nxt_http_static_handler(nxt_task_t *task, nxt_http_request_t *r,
         nxt_str_set(&extension, ".html");
 
     } else {
-        nxt_str_null(&index);
+        nxt_str_set(&index, "");
         nxt_str_null(&extension);
     }