From 75c3272a1caf96c3a0e9e1384e5219755588cc0c Mon Sep 17 00:00:00 2001
From: Igor Sysoev <igor@sysoev.ru>
Date: Wed, 2 May 2007 09:02:23 +0000
Subject: [PATCH] fix segfault introduced in r1190

---
 src/http/ngx_http_variables.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/src/http/ngx_http_variables.c b/src/http/ngx_http_variables.c
index 5aac76b76..0bd6b7ec6 100644
--- a/src/http/ngx_http_variables.c
+++ b/src/http/ngx_http_variables.c
@@ -1269,12 +1269,13 @@ ngx_http_variables_init_vars(ngx_conf_t *cf)
 
         for (n = 0; n < cmcf->variables_keys->keys.nelts; n++) {
 
-            if (v[i].name.len == key[n].key.len
+            av = key[n].value;
+
+            if (av->get_handler
+                && v[i].name.len == key[n].key.len
                 && ngx_strncmp(v[i].name.data, key[n].key.data, v[i].name.len)
                    == 0)
             {
-                av = key[n].value;
-
                 v[i].get_handler = av->get_handler;
                 v[i].data = av->data;