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Path: utzoo!watmath!clyde!burl!ulysses!allegra!mit-eddie!think!harvard!seismo!mcvax!ukc!icdoc!ist!pat
From: pat@ist.UUCP (Patrick Place)
Newsgroups: net.bugs.4bsd
Subject: pwd
Message-ID: <454@ist.UUCP>
Date: Mon, 26-Aug-85 12:28:22 EDT
Article-I.D.: ist.454
Posted: Mon Aug 26 12:28:22 1985
Date-Received: Sat, 24-Aug-85 01:08:48 EDT
Organization: Imperial Software Technology, London, England
Lines: 39
Xpath: icdoc ivax

[]

/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2
/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2
/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2
/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2
/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2
/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2
/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2
/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2
/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2
/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2
/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2
/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2
/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir2/dir3

The above was the output of pwd, caused by the following sequence of events.
Note that the above should be all one line.

1) Create directories dir1, dir1/dir2, dir1/dir2/dir3

2) chmod o+r dir1 such that dir1 has permission rwx---r--

3) cd dir1/dir2/dir3

4) su to some id not in the owners group.

5) pwd.

Note that this is not the way I discovered this bug, simply a way
in which it can be demonstrated.  The bug appeared during my normal
use of Unix.

Note that if dir1 had permission rwx------, then pwd produced the
expected "cannot open .." message.

-- 
Patrick Place 		{inset, root44, mcvax, qtlon}!ist!pat
Imperial Software Technology, London England