Re: deleting content of /tmp
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On 03/24/07 22:19, Roberto C. Sánchez wrote:
> On Sat, Mar 24, 2007 at 10:17:28PM -0500, Ron Johnson wrote:
>> On 03/24/07 21:46, Roberto C. Sánchez wrote:
>>> On Sat, Mar 24, 2007 at 09:31:58PM -0500, Ron Johnson wrote:
>>>> Ah, you're deleting an open file!
>>>>
>>>> The app, then, that deletes an open file is poorly written.
>>>>
>>> On the contrary. It makes it so that the only way that someone can get
>>> to the file is by having cracked the kernel itself. That is, without
>>> the file descriptor, no other process can get to the data. For example,
>>> qemu does this. Lots of other programs do this as well for security.
>>> They open the file, immediately unlink it and then the only access is
>>> via the file descriptor.
>> That reminds me of the Vietnam War philosophy "we had to destroy the
>> village in order to save the village". It was bad "design" 40 years
>> ago, it's a bad design now.
>>
> Out of curiousity, why do you say that it is a bad design?
Destroying something to save it?
- --
Ron Johnson, Jr.
Jefferson LA USA
Give a man a fish, and he eats for a day.
Hit him with a fish, and he goes away for good!
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