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- Check for illegal dot sequences in file and path names.

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svn path=/trunk/; revision=7754
This commit is contained in:
Hartmut Birr 2004-01-18 22:31:23 +00:00
parent e7ec8c60bf
commit 01b8638f08
1 changed files with 21 additions and 4 deletions
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25
reactos/drivers/fs/vfat/create.c
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@ -16,7 +16,7 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/* $Id: create.c,v 1.65 2003/11/27 20:49:07 gdalsnes Exp $
/* $Id: create.c,v 1.66 2004/01/18 22:31:23 hbirr Exp $
*
* PROJECT: ReactOS kernel
* FILE: drivers/fs/vfat/create.c
@ -446,9 +446,10 @@ VfatCreateFile (PDEVICE_OBJECT DeviceObject, PIRP Irp)
ULONG RequestedDisposition, RequestedOptions;
PVFATCCB pCcb;
PVFATFCB pFcb;
PWCHAR c;
PWCHAR c, last;
BOOLEAN PagingFileCreate = FALSE;
LARGE_INTEGER AllocationSize;
BOOLEAN Dots;
/* Unpack the various parameters. */
Stack = IoGetCurrentIrpStackLocation (Irp);
@ -498,12 +499,28 @@ VfatCreateFile (PDEVICE_OBJECT DeviceObject, PIRP Irp)
}
/*
* Check for illegal characters in the file name
* Check for illegal characters and illegale dot sequences in the file name
*/
c = FileObject->FileName.Buffer + FileObject->FileName.Length / sizeof(WCHAR);
last = c - 1;
Dots = TRUE;
while (c-- > FileObject->FileName.Buffer)
{
if (*c != '\\' && vfatIsLongIllegal(*c))
if (*c == L'\\' || c == FileObject->FileName.Buffer)
{
if (Dots && last > c)
{
return(STATUS_OBJECT_NAME_INVALID);
}
last = c - 1;
Dots = TRUE;
}
else if (*c != L'.')
{
Dots = FALSE;
}
if (*c != '\\' && vfatIsLongIllegal(*c))
{
return(STATUS_OBJECT_NAME_INVALID);
}