# HG changeset patch
# User Valentin Bartenev <vbart@nginx.com>
# Date 1355323728 0
# Node ID ed576bd1d9c012f7fd928612625f42ad2971b02a
# Parent  b39d947fcb82923bbbe061904f544d803956426a
Limit rate: fixed integer overflow in limit calculation (ticket #256).

Patch by Alexey Antropov.

diff --git a/src/http/ngx_http_write_filter_module.c b/src/http/ngx_http_write_filter_module.c
--- a/src/http/ngx_http_write_filter_module.c
+++ b/src/http/ngx_http_write_filter_module.c
@@ -207,7 +207,7 @@ ngx_http_write_filter(ngx_http_request_t
     }
 
     if (r->limit_rate) {
-        limit = r->limit_rate * (ngx_time() - r->start_sec + 1)
+        limit = (off_t) r->limit_rate * (ngx_time() - r->start_sec + 1)
                 - (c->sent - clcf->limit_rate_after);
 
         if (limit <= 0) {