Re: VFAT: Can't create file named 'aux.h'?

From: linux-os (Dick Johnson)
Date: Tue Mar 21 2006 - 06:44:19 EST



On Tue, 21 Mar 2006, Yaroslav Rastrigin wrote:

> Hi,
> On 21 March 2006 00:46, you wrote:
>>> Hi everybody,
>>>
>>> while trying to back up a couple Linux directories to a FAT disk I ran
>>> into a weird situation: I can't create a file called aux.h on the FAT
>>> system!
>>>
>> On DOS et al, there are a number of special filenames, such as
>>
>> com1:
>> com2: (and so on)
>> lpt1:
>> lpt2: (and so on)
>> con:
>> aux
>> nul
>>
>> (Try `dir >nul`, it's equivalent to unix's `ls -l >/dev/null` --
>> aux is the auxiliary port, whatever that is)
>>
>> It seems only fair to me to not allow creating these files under Linux
>> either, to avoid problems when booting back to Dos/Windows.
> This is true. smbfs, OTOH, has no such checks, so creating aux.h on an smb share is one easy way to DoS
> all WinXP machines using(browsing) this share. Explorer hangs on reading directory with this file.
>>
>>
>> Jan Engelhardt
>
> --
> Managing your Territory since the dawn of times ...

Also, CON is a sensitive name on WIN/2000. This can hang the
browser. The "@#+^%!@#" devices still exist:

C:\> copy con xxx.xxx

.... from the shell will wait forever.



Cheers,
Dick Johnson
Penguin : Linux version 2.6.15.4 on an i686 machine (5589.48 BogoMips).
Warning : 98.36% of all statistics are fiction, book release in April.
_


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