[ekohl] 61260: [FASTFAT] Fail, if we try to overwrite an eixting read-only file.

Author: ekohl
Date: Wed Dec 11 11:42:44 2013
New Revision: 61260

URL: http://svn.reactos.org/svn/reactos?rev=61260&view=rev
Log:
[FASTFAT]
Fail, if we try to overwrite an eixting read-only file.

Modified:
    trunk/reactos/drivers/filesystems/fastfat/create.c

Modified: trunk/reactos/drivers/filesystems/fastfat/create.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/filesystems/fastfa…
==============================================================================
--- trunk/reactos/drivers/filesystems/fastfat/create.c	[iso-8859-1] (original)
+++ trunk/reactos/drivers/filesystems/fastfat/create.c	[iso-8859-1] Wed Dec 11 11:42:44
2013
@@ -349,6 +349,7 @@
     PDEVICE_EXTENSION DeviceExt,
     PUNICODE_STRING PathNameU,
     PFILE_OBJECT FileObject,
+    ULONG RequestedDisposition,
     PVFATFCB *ParentFcb)
 {
     PVFATFCB Fcb;
@@ -404,6 +405,15 @@
         vfatReleaseFCB (DeviceExt, Fcb);
         return STATUS_DELETE_PENDING;
     }
+
+    /* Fail, if we try to overwrite a read-only file */
+    if ((*Fcb->Attributes & FILE_ATTRIBUTE_READONLY) &&
+        (RequestedDisposition == FILE_OVERWRITE))
+    {
+        vfatReleaseFCB(DeviceExt, Fcb);
+        return STATUS_ACCESS_DENIED;
+    }
+
     DPRINT("Attaching FCB to fileObject\n");
     Status = vfatAttachFCBToFileObject(DeviceExt, Fcb, FileObject);
     if (!NT_SUCCESS(Status))
@@ -519,7 +529,7 @@
     }
 
     /* Try opening the file. */
-    Status = VfatOpenFile(DeviceExt, &PathNameU, FileObject, &ParentFcb);
+    Status = VfatOpenFile(DeviceExt, &PathNameU, FileObject, RequestedDisposition,
&ParentFcb);
 
     /*
      * If the directory containing the file to open doesn't exist then