nginx-1.2.7-upstream_truncation.patch: worked around an issue in ngx_event_pipe_copy_input_filter because it does not set p->upstream_done when p->length <= 0 like ngx_http_proxy_copy_filter.

patches/nginx-1.2.7-upstream_truncation.patch

@@ -76,7 +76,7 @@ diff --exclude '*~' --exclude '*.swp' -urp nginx-1.2.7/src/http/modules/ngx_http
  {
 diff --exclude '*~' --exclude '*.swp' -urp nginx-1.2.7/src/http/ngx_http_upstream.c nginx-1.2.7-patched/src/http/ngx_http_upstream.c
 --- nginx-1.2.7/src/http/ngx_http_upstream.c	2013-02-11 06:39:49.000000000 -0800
-+++ nginx-1.2.7-patched/src/http/ngx_http_upstream.c	2013-04-06 17:16:54.444520038 -0700
++++ nginx-1.2.7-patched/src/http/ngx_http_upstream.c	2013-04-08 16:37:48.326752696 -0700
 @@ -2399,7 +2399,7 @@ ngx_http_upstream_process_non_buffered_u
  
      if (c->read->timedout) {
@@ -95,7 +95,7 @@ diff --exclude '*~' --exclude '*.swp' -urp nginx-1.2.7/src/http/ngx_http_upstrea
 +                    || (upstream->read->eof
 +                        && u->length == -1
 +                        && u->pipe
-+                        && u->pipe->length == -1))
++                        && u->pipe->length <= 0))
                  {
                      ngx_http_upstream_finalize_request(r, u, 0);
                      return;
@@ -115,7 +115,7 @@ diff --exclude '*~' --exclude '*.swp' -urp nginx-1.2.7/src/http/ngx_http_upstrea
  
 -        if (p->upstream_done || p->upstream_eof || p->upstream_error) {
 +        if (p->upstream_done
-+            || (p->upstream_eof && u->length == -1 && p->length == -1))
++            || (p->upstream_eof && u->length == -1 && p->length <= 0))
 +        {
              ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
                             "http upstream exit: %p", p->out);

util/ver

@@ -2,7 +2,7 @@
 
 #main_ver=1.3.11
 main_ver=1.2.7
-minor_ver=5rc2
+minor_ver=5rc4
 version=$main_ver.$minor_ver
 echo $version