From 2e9542b9106144e534bc79b8b1589908f73fa4b5 Mon Sep 17 00:00:00 2001
From: Igor Sysoev <igor@sysoev.ru>
Date: Thu, 9 Jul 2009 13:32:51 +0000
Subject: [PATCH] fix ngx_http_send_special() for subrequests handled by perl

---
 src/http/ngx_http_request.c  | 8 +++++++-
 src/http/ngx_http_upstream.c | 2 +-
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/src/http/ngx_http_request.c b/src/http/ngx_http_request.c
index 57128a361..d60384fe1 100644
--- a/src/http/ngx_http_request.c
+++ b/src/http/ngx_http_request.c
@@ -2694,7 +2694,13 @@ ngx_http_send_special(ngx_http_request_t *r, ngx_uint_t flags)
     }
 
     if (flags & NGX_HTTP_LAST) {
-        b->last_buf = 1;
+
+        if (r == r->main && !r->post_action) {
+            b->last_buf = 1;
+
+        } else {
+            b->last_in_chain = 1;
+        }
     }
 
     if (flags & NGX_HTTP_FLUSH) {
diff --git a/src/http/ngx_http_upstream.c b/src/http/ngx_http_upstream.c
index add5b21d9..cc303b431 100644
--- a/src/http/ngx_http_upstream.c
+++ b/src/http/ngx_http_upstream.c
@@ -2888,7 +2888,7 @@ ngx_http_upstream_finalize_request(ngx_http_request_t *r,
 
     r->connection->log->action = "sending to client";
 
-    if (rc == 0 && r == r->main && !r->post_action) {
+    if (rc == 0) {
         rc = ngx_http_send_special(r, NGX_HTTP_LAST);
     }