Subject: Re: CVS commit: src/usr.bin/find
To: None <tech-userlevel@NetBSD.org>
From: der Mouse <mouse@Rodents.Montreal.QC.CA>
Date: 02/11/2007 23:46:05
> In this case passing an open file won't help, as it is the directory
> entry (ie the name) that has to be removed, not the open file.
Passing an open file will indeed help, provided it's done right: pass a
fd on the directory along with the name. Then rm can fchdir() to the
directory and unlink() the name, safely.
> I think this means that there is always a race between any stat of
> the name and an attempt to unlink it.
Yes, there is a race in that the name may no longer refer to what it
used to. That doesn't matter for the purposes -delete was added for.
And passing an fd on the directory plus the name is precisely as good
as -delete for this....
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