From 3c48fd7c0544652c26b51a6a98e807165a3cd66a Mon Sep 17 00:00:00 2001
From: Roman Arutyunyan <arut@nginx.com>
Date: Wed, 23 Mar 2016 17:45:15 +0300
Subject: [PATCH] Stream: detect port absence in proxy_pass with IP literal.

This is a clone of http commit 26c127bab5ef.
---
 src/stream/ngx_stream_upstream.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/stream/ngx_stream_upstream.c b/src/stream/ngx_stream_upstream.c
index 805ee7029..69dddc5b4 100644
--- a/src/stream/ngx_stream_upstream.c
+++ b/src/stream/ngx_stream_upstream.c
@@ -388,7 +388,7 @@ ngx_stream_upstream_add(ngx_conf_t *cf, ngx_url_t *u, ngx_uint_t flags)
     uscf->port = u->port;
     uscf->no_port = u->no_port;
 
-    if (u->naddrs == 1) {
+    if (u->naddrs == 1 && (u->port || u->family == AF_UNIX)) {
         uscf->servers = ngx_array_create(cf->pool, 1,
                                          sizeof(ngx_stream_upstream_server_t));
         if (uscf->servers == NULL) {