From 8c8a6e5f2f3ae008de82e221c1d45d1c9321c15b Mon Sep 17 00:00:00 2001
From: Igor Sysoev <igor@sysoev.ru>
Date: Sun, 16 Mar 2008 13:29:49 +0000
Subject: [PATCH] use the more correct mask

---
 src/http/ngx_http_parse.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/http/ngx_http_parse.c b/src/http/ngx_http_parse.c
index b83810d2e..2e38434b9 100644
--- a/src/http/ngx_http_parse.c
+++ b/src/http/ngx_http_parse.c
@@ -775,7 +775,7 @@ ngx_http_parse_header_line(ngx_http_request_t *r, ngx_buf_t *b)
             if (c) {
                 hash = ngx_hash(hash, c);
                 r->lowcase_header[i++] = c;
-                i &= ~NGX_HTTP_LC_HEADER_LEN;
+                i &= (NGX_HTTP_LC_HEADER_LEN - 1);
                 break;
             }