Mail Archives: cygwin/2006/09/12/15:44:28
Please disregard - the latest McAfee Virus Scan (Enterprise 8) flags
this file and is "trying" to protect hijacks. It'd be nice if that got
logged somewhere.
Disabling my On-Demand Scan, I was able to create the file, rename,
move, etc. So, this is a non-issue. Thanks for your help though, Dave!
-----Original Message-----
From: Brian Davidson
Sent: Tuesday, September 12, 2006 2:35 PM
To: 'cygwin AT cygwin DOT com'
Subject: RE: 1.5.21: Unable to copy/move autorun.inf on mapped drives
Dave -
I have confirmed that I can perform this action to remote network shares
without any problem, and I have simplified the test to "touch a ; mv a
autorun.inf" and it still gives me a permission denied error, so we can
rule out permissions I think.
It's file name specific, as I can do the same test with any other name
and have no problems.
For kicks, I made a C:\a share (different local drive from before), gave
it full NTFS permissions to everyone, shared it to everyone with full
control, and when I mapped my X: drive to it, I encountered the exact
same issue. I can't loosen the permissions any more than that.
Any other ideas?
RE: 1.5.21: Unable to copy/move autorun.inf on mapped drives
* From: "Dave Korn" <dave dot korn at artimi dot com>
* To: <cygwin at cygwin dot com>
* Date: Tue, 12 Sep 2006 14:58:39 +0100
* Subject: RE: 1.5.21: Unable to copy/move autorun.inf on mapped
drives
On 12 September 2006 14:33, Brian Davidson wrote:
> I have been using Cygwin for years to automatically produce
> InstallShield installations for our company. After formatting my PC
> and installing the latest available Cygwin release, I believe I have
> found a very obscure bug which only seems to impact autorun.inf and
> only on mapped drives. I could not reproduce this issue on a local
> drive with the same or different autorun.inf file. Being in software
> QA, I have tried as many scenarios as I could think of, but being
> human, I'm willing to admit I may have missed something.
The fact that cygwin and windows have different permissions schemes,
most likely.
> To reproduce:
> 1. Create a folder on any drive
> 2. Share that folder
> 3. Map that folder to any available drive letter (i.e. net use X:
> \\machinename\share)
> 4. Using Windows Explorer, copy an autorun.inf file into this
> directory.
Is it the name of this file that matters, or the contents?
Or is it the permissions?
Or is it where I get it from? Does it matter whether the autorun.inf
came from a CD or was somewhere on your HD already? Where did you get
yours from.
> 5. Open a Windows Command Prompt and cd to the mapped drive where the
> file was placed.
> 6. Type "ren autorun.inf test.txt"
>
> TEST 1: Proving the process works outside of Cygwin:
>
> 7. Type "copy test.txt autorun.inf". This should succeed and you
> wind up with 2 identical files.
Identical in all respects except perms, I'd bet. copy doesn't
preserve the ACLs, it creates a new file using your user id's default
ACL. You need to use xcopy with the `-O' option.
> 8. Type "del autorun.inf" to revert the environment for the next
test.
>
> TEST 2: Proving the process does not work in Cygwin:
>
> 9. Open Cygwin BASH shell
> 10. cd to the mapped drive (/cygdrive/x for example) 11. Type "cp
> test.txt autorun.inf". You should get a "Permission denied" error.
Nope, worked fine for me. Then again I created an empty .inf file by
using cygwin's touch command.
> As I said, I have used this process for years without incident. To
> work around this, I chose to use subst and endure the consequences on
> Windows, but this is a problem nonetheless.
>
> I would like to know if anyone else can (or has) reproduced this
> issue, as I have not found anything specific on this in the newsgroups
> or FAQ's.
If you copied the .inf file from a CD, it will have ended up with the
readonly attribute set. Check if that's making a difference.
cheers,
DaveK
--
Can't think of a witty .sigline today....
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