Date: Mon, 18 Oct 1999 10:07:17 -0700 (PDT) From: Brian Beattie <beattie@aracnet.com> To: "Aleksandr A.Babaylov" <babolo@links.ru> Cc: Doug <Doug@gorean.org>, freebsd-hackers@FreeBSD.ORG Subject: Re: how mkdir without .. ? Message-ID: <Pine.LNX.4.10.9910180955410.11471-100000@shell2.aracnet.com> In-Reply-To: <199910181324.RAA09383@aaz.links.ru>
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On Mon, 18 Oct 1999, Aleksandr A.Babaylov wrote:
>
> I remember, that in really old UNIXes creating a dirertory
> and populating it with "." and ".." entryes was different
> steps, but I dont remember method (I was young and dumb then)
>
the mkdir command was something along the lines of:
main( argc, argv )
{
...
chdir(parentdir);
mknod("foo",I_DIR|modes);
link("foo", ".");
link(".","..");
...
}
This was on a version 7, or system V, filesystem.
It is no longer possible to use mknod to make a directory inode. The
rasson for this is that some filesystems can not be made to support the
old semantics, and it is a good idea to have an atomic method to make a
directory.
> --
> @BABOLO http://links.ru/
>
>
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Brian Beattie | The only problem with
beattie@aracnet.com | winning the rat race ...
www.aracnet.com/~beattie | in the end you're still a rat
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