From: Igor Sysoev <igor@sysoev.ru>
Date: Thu, 22 Oct 2009 09:48:42 +0000 (+0000)
Subject: do not run regex for empty host name since regex always fails in this case,
X-Git-Tag: release-0.8.21~4
X-Git-Url: http://www.kaiwu.me/postgresql/commit/?a=commitdiff_plain;h=663e9579575ca7b226ba5efa82253f619fcb7a94;p=nginx.git

do not run regex for empty host name since regex always fails in this case,
the bug had been introduced in r2196
---

diff --git a/src/http/ngx_http_request.c b/src/http/ngx_http_request.c
index 3ae6ddb28..a0c4ea3b8 100644
--- a/src/http/ngx_http_request.c
+++ b/src/http/ngx_http_request.c
@@ -1688,7 +1688,7 @@ ngx_http_find_virtual_server(ngx_http_request_t *r, u_char *host, size_t len)
 
 #if (NGX_PCRE)
 
-    if (r->virtual_names->nregex) {
+    if (len && r->virtual_names->nregex) {
         size_t                   ncaptures;
         ngx_int_t                n;
         ngx_uint_t               i;