Win32: removed NGX_DIR_MASK concept. Previous interface of ngx_open_dir() assumed that passed directory name has a room for NGX_DIR_MASK at the end (NGX_DIR_MASK_LEN bytes). While all direct users of ngx_dir_open() followed this interface, this also implied similar requirements for indirect uses - in particular, via ngx_walk_tree(). Currently none of ngx_walk_tree() uses provides appropriate space, and fixing this does not look like a right way to go. Instead, ngx_dir_open() interface was changed to not require any additional space and use appropriate allocations instead.

--- a/src/http/modules/ngx_http_random_index_module.c
+++ b/src/http/modules/ngx_http_random_index_module.c
@@ -98,7 +98,7 @@ ngx_http_random_index_handler(ngx_http_r
     }
 
 #if (NGX_HAVE_D_TYPE)
-    len = NGX_DIR_MASK_LEN;
+    len = 0;
 #else
     len = NGX_HTTP_RANDOM_INDEX_PREALLOCATE;
 #endif