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Date: Fri, 11 Mar 2005 18:12:58 -0500 (EST)
From: Igor Pechtchanski <pechtcha AT cs DOT nyu DOT edu>
Reply-To: cygwin AT cygwin DOT com
To: Yitzchak Scott-Thoennes <sthoenna AT efn DOT org>
cc: cygwin AT cygwin DOT com
Subject: Re: Problem with the "-r" test in Perl 5.8.6-4
In-Reply-To: <20050311230211.GA2872@efn.org>
Message-ID: <Pine.GSO.4.61.0503111811490.23792@slinky.cs.nyu.edu>
References: <Pine DOT GSO DOT 4 DOT 61 DOT 0503102033040 DOT 2884 AT slinky DOT cs DOT nyu DOT edu> <20050311230211 DOT GA2872 AT efn DOT org>
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On Fri, 11 Mar 2005, Yitzchak Scott-Thoennes wrote:

> On Thu, Mar 10, 2005 at 08:44:40PM -0500, Igor Pechtchanski wrote:
> > Hi,
> >
> > I'm having trouble with Perl 5.8.6-4 under Cygwin 1.5.12.
> >
> > $ perl -e 'exit !(-r $ARGV[0])' /cygdrive/c/Program\ Files/ThinkPad/Utilities && echo "yep"
> > $ test -r /cygdrive/c/Program\ Files/ThinkPad/Utilities && echo "yep"
> > yep
> >
> > Is this behavior by design, or does perl actually check ACLs and something
> > is wrong with my installation?
> > 	Igor
>
> perldoc -f -r:
>
>               The interpretation of the file permission operators "-r", "-R",
>               "-w", "-W", "-x", and "-X" is by default based solely on the
>               mode of the file and the uids and gids of the user.  There may
>               be other reasons you can't actually read, write, or execute the
>               file.  Such reasons may be for example network filesystem
>               access controls, ACLs (access control lists), read-only
>               filesystems, and unrecognized executable formats.
>
> You can try the filetest pragma: use filetest 'access';
> see perldoc filetest.

I see.  So basically this isn't likely to change in Perl, and so is a bug
in the program that uses -r here.  I'll report this as a bug, then.
Thanks,
	Igor
-- 
				http://cs.nyu.edu/~pechtcha/
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