Alan Cox wrote:
Good call. Though I suppose, since it's used 24x7 to aid security on
countless production servers, that security dwarfs testing. Still,
debugging, yes that's valid.
I don't suppose it makes and difference; whatever the purpose, a chroot
that doesn't change the root is buggy.
It does change the root, it just doesn't guarantee you can't change it
back - which is correct POSIX, Unix, SuS behaviour. So either everyone
else is wrong or you are.. I know who I am betting on
Charming. They really say that, do they? Where? I find no such thing,
and I looked. I did find Open Groups SuS which, similar to SCO's UNIX,
says:
The dot-dot entry in the root directory is interpreted to mean the
root directory itself. Thus, dot-dot cannot be used to access files
outside the subtree rooted at the root directory.
I feel I've presented a good case that that it's a bug. You made a
somewhat rude counter-claim, which I don't ascribe to malevolence.
You're simply disinterested. Nobody else cares, so why expend effort on
it, right? I'll let it drop, but it is a bug.
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