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Date: Tue, 18 Dec 2007 13:58:56 -0500 (EST)
From: Igor Peshansky <pechtcha AT cs DOT nyu DOT edu>
Reply-To: cygwin AT cygwin DOT com
To: Michael Kairys <kairys AT comcast DOT net>
cc: cygwin AT cygwin DOT com
Subject: Re: Intermittent perl crash (Attn: coreutils and bash maintainer)
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Message-ID: <Pine.GSO.4.63.0712181355260.28181@access1.cims.nyu.edu>
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On Tue, 18 Dec 2007, Michael Kairys wrote:

> "Igor Peshansky" <pechtcha AT XX DOT XXX DOT XXX> wrote in message
> news:Pine DOT GSO DOT 4 DOT 63 DOT 0712181009420 DOT 28181 AT access1 DOT cims DOT nyu DOT edu...

Again, <http://cygwin.com/acronyms/#PCYMTNQREAIYR>.  Thanks.

> > I'm guessing one can reconstruct your permissions as follows:
> >
> > $ cd /tmp
> > $ mkdir nw
> > $ setfacl -m g:Users:rwx nw
> > $ chmod a-rwx nw
> > $ ls -ld nw
> > d---------+ 2 igor root 0 Dec 18 10:08 nw/
> > $ touch nw/foo
> > $ ls -l nw/foo
> > -rw------- 1 igor root 0 Dec 18 10:08 nw/foo
> > $ if [ -w nw ]; then echo "Yes"; else echo "No"; fi
> > No
> > $
>
> Not sure about the setfacl but I note that if I repeat your sequence I get
> "dr-xr-xr-x", which is what all my dirs look like:
>
> 1 > cd /tmp
> 2 > mkdir nw
> 3 > setfacl -m g:Users:rwx nw
> 4 > chmod a-rwx nw
> 5 > ls -ld nw
> dr-xr-xr-x 2 michael None 0 Dec 18 11:46 nw
> 6 > touch nw/foo
> 7 > ls -l nw/foo
> -rw-r--r-- 1 michael None 0 Dec 18 11:47 nw/foo
> 8 > if [ -w nw ]; then echo "Yes"; else echo "No"; fi
> No
>
> > One solution is, of course, "chmod u+rwx /tmp".
>
> Well, this has no effect for me:
>
> 9 > ls -ld /tmp
> dr-xr-xr-x 9 michael None 245760 Dec 18 11:46 /tmp
> 10 > chmod u+rwx /tmp
> 11 > ls -ld /tmp
> dr-xr-xr-x 9 michael None 245760 Dec 18 11:46 /tmp

Heh.  I just looked, and it seems you've never posted the output of
"cygcheck -svr" on your system as requested in

> Problem reports:       http://cygwin.com/problems.html

I bet that if you did post one, it would show that your Cygwin is
installed on either FAT or FAT32, not NTFS.  That, and the DOS "Read-only"
bit on the directory is probably set.  Another (less likely) alternative
is that you've installed on a network drive.

If it's FAT32, you're out of luck.  In other cases you would probably
benefit from reviewing <http://cygwin.com/cygwin-ug-net/ntsec.html>.
	Igor
-- 
				http://cs.nyu.edu/~pechtcha/
      |\      _,,,---,,_	    pechtcha AT cs DOT nyu DOT edu | igor AT watson DOT ibm DOT com
ZZZzz /,`.-'`'    -.  ;-;;,_		Igor Peshansky, Ph.D. (name changed!)
     |,4-  ) )-,_. ,\ (  `'-'		old name: Igor Pechtchanski
    '---''(_/--'  `-'\_) fL	a.k.a JaguaR-R-R-r-r-r-.-.-.  Meow!

"That which is hateful to you, do not do to your neighbor.  That is the whole
Torah; the rest is commentary.  Go and study it." -- Rabbi Hillel

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