Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!cs.utexas.edu!uunet!pilchuck!amc-gw!thebes!polari!6sigma2
From: 6sigma2@polari.UUCP (Brian Matthews)
Newsgroups: comp.unix.programmer
Subject: Re: getting the current working directory
Message-ID: <3141@polari.UUCP>
Date: 12 Jan 91 19:27:30 GMT
References: <42380@ut-emx.uucp> <5195@idunno.Princeton.EDU>
Distribution: usa
Organization: Seattle Online Public Unix (206) 328-4944
Lines: 14

In article <5195@idunno.Princeton.EDU> pfalstad@phoenix.Princeton.EDU (Paul John Falstad) writes:
|Here is a version of getwd I wrote for zsh.  I'd be interested in what
|people think of it.  I needed a version that didn't fork(), and was
|having problems with the Sun getwd().

[getwd that crawls up the directory tree reading each directory on the way]

The problem with this is that it's quite possible to be in a directory
which has some ancestors that can't be read.  Thus a program calling this
getwd must be running setuid root or in a restricted environment (in which
case it probably shouldn't need to call getwd) where it knows all ancestors
of the current directory are readable.
-- 
Brian L. Matthews	6sigma2@polari.UUCP