# HG changeset patch
# User Maxim Dounin <mdounin@mdounin.ru>
# Date 1341853477 0
# Node ID 149634c98d67e8b79ff8317e4b2aeb9bf842a427
# Parent  613750237b365bc5c427c3a51e4f40f69ed1dad0
Entity tags: empty etags handling in If-Range.

Entity tag may be of length 2 as per RFC 2616, i.e. double quotes only.
Pointed out by Ruslan Ermilov.

diff --git a/src/http/modules/ngx_http_range_filter_module.c b/src/http/modules/ngx_http_range_filter_module.c
--- a/src/http/modules/ngx_http_range_filter_module.c
+++ b/src/http/modules/ngx_http_range_filter_module.c
@@ -179,7 +179,7 @@ ngx_http_range_header_filter(ngx_http_re
 
         if_range = &r->headers_in.if_range->value;
 
-        if (if_range->len > 2 && if_range->data[if_range->len - 1] == '"') {
+        if (if_range->len >= 2 && if_range->data[if_range->len - 1] == '"') {
 
             if (r->headers_out.etag == NULL) {
                 goto next_filter;