From 345247a596415d6a59c0e2be78b56d1e2c27d303 Mon Sep 17 00:00:00 2001
From: yura <yura>
Date: Sat, 3 Jun 2006 22:09:24 +0000
Subject: [PATCH] ntfs_link(): prevent creating of recursive directary
 structure.

FUSE incorrectly handles case insensitive filesystems: when I try to rename
"/Dir" to "/DIR", ntfsmount receive rename("/Dir", "/DIR/Dir") call.
This patch do not fix rename, but prevent fs corruption. I will mail Miklos
about this problem.
---
 libntfs/dir.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/libntfs/dir.c b/libntfs/dir.c
index 680fd275..aef26af0 100644
--- a/libntfs/dir.c
+++ b/libntfs/dir.c
@@ -1611,7 +1611,8 @@ int ntfs_link(ntfs_inode *ni, ntfs_inode *dir_ni, ntfschar *name, u8 name_len)
 	int fn_len, err;
 
 	ntfs_log_trace("Entering.\n");
-	if (!ni || !dir_ni || !name || !name_len) {
+	if (!ni || !dir_ni || !name || !name_len ||
+			ni->mft_no == dir_ni->mft_no) {
 		err = errno;
 		ntfs_log_error("Invalid arguments.\n");
 		goto err_out;