Re: [RFC] File flags handling - proposal for API.

Linus Torvalds (torvalds@transmeta.com)
Fri, 25 Jun 1999 11:41:13 -0700 (PDT)


On Fri, 25 Jun 1999, Wolfgang Walter wrote:
>
> how will such a 'directory which can be opened as file' behave compared to
> 2.0?
>
> If a simple
>
> fp = open(<directory>, O_RDONLY)
>
> opens a default-file in <directory> instead of <directory> itself, then we
> have (at least compared to 2.0) a rather subtile change which may implies
> some severe security problems.

But the thing is, that we want to disallow opening the directory that way
_anyway_. It's going to happen: if you want to open the directory, you
will have to use the O_DIRECTORY flag. The current libraries do that
already for opendir().

Linus

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