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From: ekrell@hector..UUCP (Eduardo Krell)
Newsgroups: comp.unix.wizards
Subject: Re: Symbolic Links
Message-ID: <2894@ulysses.homer.nj.att.com>
Date: Fri, 28-Aug-87 11:29:29 EDT
Article-I.D.: ulysses.2894
Posted: Fri Aug 28 11:29:29 1987
Date-Received: Sun, 30-Aug-87 01:22:57 EDT
References: <8731@brl-adm.ARPA> <2789@ulysses.homer.nj.att.com>
Sender: daemon@ulysses.homer.nj.att.com
Reply-To: ekrell@ulysses (Eduardo Krell)
Organization: AT&T Bell Labs, Murray Hill
Lines: 12

In article <428@ecrcvax.UUCP> johng@ecrcvax.UUCP (John Gregor) writes:
>Another problem I forsee in changing the semantics of .. is that symbolic links
>can be cyclic.  So, a few hundred trips around the cycle and the kernal would
>have to keep that much state information around.

There's already a hard-coded constant in the kernel that allows a maximum of
8 symbolic links during a given pathname expansion (that's how BSD deals with
loops caused by symbolic links).
    
    Eduardo Krell                   AT&T Bell Laboratories, Murray Hill

    {ihnp4,seismo,ucbvax}!ulysses!ekrell