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Date: Tue, 15 Jan 2008 15:03:40 +0100
From: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: Maybe 1.5 Regression: cp failing while working with cygwin 	1.3.22
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On Jan 15 13:21, Roland Schwingel wrote:
> Receipe to reproduce:
>
> 1. Login to your linux box in your homeaccount.
> 2. mkdir -p ~/tmp/test
> 3. cd ~/tmp/test
> 4. mkdir subdir
> 5. ln -s subdir symlink
> 6. logout
> 7. Start cygwin 1.3.22
> 8. cp -rp //server/share/path/to/your/home/tmp/test /tmp
> 9. <everything fine>
> 10. Start cygwin 1.5 installation
> 11. cp -rp //server/share/path/to/your/home/tmp/test /tmp
> 12. Error message appears:
>
> cp: will not create hard link: '/tmp/test/symlink' to directory 
> '/tmp/test/subdir'
>
> Obviously cygwin 1.5 is now detecting the symlink correctly while 1.3 was 
> not because it copied
> the symlinked folder as folder not as link (even when I did cp -a).

Here's the reason:

Cygwin 1.5.25 uses the i-node numbers returned by
Samba > 3.x as ... i-node numbers.  Cygwin 1.3.x generated always pseudo
i-node numbers on remote drives.

When listing the files on Linux, the i-node numbers are different:

linux$ ls -li
total 4
233804 drwxr-xr-x 2 corinna users 4096 Jan 15 14:46 subdir
233805 lrwxrwxrwx 1 corinna users    6 Jan 15 14:47 symlink -> subdir

cygwin-1.5.25$ ls -li
total 0
8808978157900 drwxr-xr-x 1 corinna root 0 Jan 15 14:46 subdir
8808978157900 drwxr-xr-x 1 corinna root 0 Jan 15 14:46 symlink

Usually the i-node numbers returned by Samba are the device id in the
high dword and the actual i-node number in the low d-word:

       233804 == 0x000000000003914C
       233805 == 0x000000000003914D

8808978157900 == 0x000010060003914C

I have no idea why Samba doesn't return the correct i-node number for
symlinks.  This is most unfortunate.

Maybe the smb.conf setting "follow symlinks = no" is an option for you?


Corinna

-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Project Co-Leader          cygwin AT cygwin DOT com
Red Hat

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