From f15ffecda45d9a3b0f1a7783bc49e5d19d8e3951 Mon Sep 17 00:00:00 2001
From: Eric Kohl <eric.kohl@reactos.org>
Date: Tue, 28 Sep 2004 10:52:55 +0000
Subject: [PATCH] Support special FILE_WRITE_TO_END_OF_FILE byte offset to
 append data to a file.

svn path=/trunk/; revision=11102
---
 reactos/drivers/fs/vfat/rw.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/reactos/drivers/fs/vfat/rw.c b/reactos/drivers/fs/vfat/rw.c
index d8615867ef6..412a57f47a0 100644
--- a/reactos/drivers/fs/vfat/rw.c
+++ b/reactos/drivers/fs/vfat/rw.c
@@ -1,5 +1,5 @@
 
-/* $Id: rw.c,v 1.69 2004/08/31 20:02:24 hbirr Exp $
+/* $Id: rw.c,v 1.70 2004/09/28 10:52:55 ekohl Exp $
  *
  * COPYRIGHT:        See COPYING in the top level directory
  * PROJECT:          ReactOS kernel
@@ -828,6 +828,11 @@ NTSTATUS VfatWrite (PVFAT_IRP_CONTEXT IrpContext)
    }
 
    ByteOffset = IrpContext->Stack->Parameters.Write.ByteOffset;
+   if (ByteOffset.u.LowPart == FILE_WRITE_TO_END_OF_FILE &&
+       ByteOffset.u.HighPart == 0xffffffff)
+   {
+      ByteOffset.QuadPart = Fcb->RFCB.FileSize.QuadPart;
+   }
    Length = IrpContext->Stack->Parameters.Write.Length;
    BytesPerSector = IrpContext->DeviceExt->FatInfo.BytesPerSector;