From 0d2c8b5961d461913557795e8d99c0fa0be87448 Mon Sep 17 00:00:00 2001
From: rxu <rxu@mail.ru>
Date: Mon, 4 May 2015 16:51:09 +0700
Subject: [PATCH] [ticket/13814] Prevent phpbb_is_writable() method from
 truncating files

phpbb_is_writable() of filesystem class uses 'w' mode to fopen files
which causes checked files to be truncated. Use the 'c' mode instead.

PHPBB3-13814
---
 phpBB/phpbb/filesystem/filesystem.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/phpBB/phpbb/filesystem/filesystem.php b/phpBB/phpbb/filesystem/filesystem.php
index 370dff77e5..2112882d1d 100644
--- a/phpBB/phpbb/filesystem/filesystem.php
+++ b/phpBB/phpbb/filesystem/filesystem.php
@@ -613,7 +613,7 @@ class filesystem implements filesystem_interface
 			}
 			else
 			{
-				$handle = @fopen($file, 'w');
+				$handle = @fopen($file, 'c');
 
 				if (is_resource($handle))
 				{