From 5bc5b7e01ffa7a1b5612455ac9d89bbd4b4cac7b Mon Sep 17 00:00:00 2001
From: Unbit <info@unbit.it>
Date: Mon, 15 Sep 2014 06:38:59 +0200
Subject: [PATCH] ensure PSGI response headers are in the right format

---
 plugins/psgi/psgi_response.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/plugins/psgi/psgi_response.c b/plugins/psgi/psgi_response.c
index b5c5614f..b2a81a09 100644
--- a/plugins/psgi/psgi_response.c
+++ b/plugins/psgi/psgi_response.c
@@ -68,7 +68,7 @@ int psgi_response(struct wsgi_request *wsgi_req, AV *response) {
 
 
         hitem = av_fetch(response, 1, 0);
-	if (!hitem) { uwsgi_log("invalid PSGI headers\n"); return UWSGI_OK;}
+	if (!hitem || SvTYPE(*hitem) != SVt_PVAV) { uwsgi_log("invalid PSGI headers\n"); return UWSGI_OK;}
 
         headers = (AV *) SvRV(*hitem);
 	if (!headers) { uwsgi_log("invalid PSGI headers\n"); return UWSGI_OK;}