# HG changeset patch
# User Maxim Dounin <mdounin@mdounin.ru>
# Date 1533078718 -10800
# Node ID 3c357206a3b8777ed6fca3d9ce5971cd3a35c5c1
# Parent  f7e79596baf209151682f2f7d220161c034657ac
Dav: fixed ngx_copy_file() to truncate destination file.

Previously, ngx_open_file(NGX_FILE_CREATE_OR_OPEN) was used, resulting
in destination file being partially rewritten if exists.  Notably,
this affected WebDAV COPY command (ticket #1576).

diff --git a/src/core/ngx_file.c b/src/core/ngx_file.c
--- a/src/core/ngx_file.c
+++ b/src/core/ngx_file.c
@@ -839,8 +839,7 @@ ngx_copy_file(u_char *from, u_char *to, 
         goto failed;
     }
 
-    nfd = ngx_open_file(to, NGX_FILE_WRONLY, NGX_FILE_CREATE_OR_OPEN,
-                        cf->access);
+    nfd = ngx_open_file(to, NGX_FILE_WRONLY, NGX_FILE_TRUNCATE, cf->access);
 
     if (nfd == NGX_INVALID_FILE) {
         ngx_log_error(NGX_LOG_CRIT, cf->log, ngx_errno,