Path: utzoo!attcan!uunet!husc6!uwvax!oddjob!mimsy!chris
From: chris@mimsy.UUCP (Chris Torek)
Newsgroups: comp.unix.questions
Subject: Re: Rename bug?
Message-ID: <11658@mimsy.UUCP>
Date: 24 May 88 22:10:16 GMT
References: <9312@eddie.MIT.EDU>
Organization: U of Maryland, Dept. of Computer Science, Coll. Pk., MD 20742
Lines: 21

In article <9312@eddie.MIT.EDU> nathan@eddie.MIT.EDU (Nathan Glasser) writes:
>On my vax running 4.3bsd ... rename("foo","foo"); ...
>will remove the file foo.

Sounds like you have a hacked 4.3BSD.  From /sys/sys/ufs_syscalls.c:

                /*
                 * Short circuit rename(foo, foo).
                 */
                if (xp->i_number == ip->i_number)
                        goto bad;

This is, of course, not quite right:

    link("foo", "bar"); rename("foo", "bar");

leaves both foo and bar around, where one would expect it to remove
file foo.
-- 
In-Real-Life: Chris Torek, Univ of MD Comp Sci Dept (+1 301 454 7163)
Domain:	chris@mimsy.umd.edu	Path:	uunet!mimsy!chris