Re: unicode build: "comparison is always true" warnings

[Matthieu Lemerre]

>> An attacker could create a symlink with this name file between these
>> two operations, thus the file would be erased.
>
> That does not happen, because the open will fail when the file already
> exists.
>
> Andreas.

You're right, this is the meaning of O_EXCL, that I had forgotten.

Then I agree with you; mkstemp is just a commodity.