From: Rich Mahn <rich@lat.com>
Date: Mon, 4 Apr 2011 22:46:06 +0000 (-0700)
Subject: vfat: Fix mangling of directory names starting with ..
X-Git-Tag: syslinux-4.04-pre19~1
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=da9c8bcfbb899975a8254e0a97945074c359ff19;p=profile%2Fivi%2Fsyslinux.git

vfat: Fix mangling of directory names starting with ..

We need to handle directory names starting with .. correctly.

Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
---

diff --git a/core/fs/fat/fat.c b/core/fs/fat/fat.c
index c896b5e..d307926 100644
--- a/core/fs/fat/fat.c
+++ b/core/fs/fat/fat.c
@@ -254,8 +254,10 @@ static void vfat_mangle_name(char *dst, const char *src)
     while (1) {
         if (dst == p)
             break;
-		if (*(dst-1) == '/' && dst-1 == p) /* it's the '/' case */
-			break;
+	if (*(dst-1) == '/' && dst-1 == p) /* it's the '/' case */
+		break;
+	if (dst-2 == p && *(dst-2) == '.' && *(dst-1) == '.' )	/* the '..' case */
+		break;
         if ((*(dst-1) != '/') && (*(dst-1) != '.'))
             break;