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SubjectRe: [RFC] Subtle race in dup2() and permissions on /proc/<pid>/fd/<n>


On Fri, 25 Jun 1999, Peter Benie wrote:

> Alexander Viro writes ("Re: [RFC] Subtle race in dup2() and permissions on /proc/<pid>/fd/<n>"):
> > On Fri, 25 Jun 1999, Peter Benie wrote:
> >
> > > They look like symlinks, but the behaviour is closer to that of
> > > hard links, and the permissions do mean something. Keep them as they are.
> >
> > *Only* if you are doing lstat() on them. Everything else doesn't care.
>
> If I'm looking at /proc/*/fd at all, the chances are that I'm
> investigating what a particular program is up to. 'ls -l' uses lstat()
> and gives me some information about what's going on.

OK, accepted. lstat() is not the best channel for passing such
information, but so be it.


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