[OpenAFS] Determining file ownership under Windows...

Jeffrey Altman jaltman@columbia.edu
Tue, 10 Feb 2004 13:28:23 -0500


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 From the stat() source code:


       /* now set the common fields */

       buf->st_uid = buf->st_gid = buf->st_ino = 0;

UID simply has no meaning on Windows.  FYI, stat() as implemented in the 
C Runtime Library is
broken on a large number of non-FAT, non-NTFS file systems.  I strongly 
recommend not using it.

What is needed is a mapping from UID to SID within the SMB logic; or 
within an IFS.

Jeffrey Altman


Rodney M Dyer wrote:

> All,
>
> Is it possible to determine AFS file ownership under Windows?  It 
> appears that this can't be done because the _stat function call only 
> returns a 0 (zero) UID for a file in AFS space.  Is this because 
> Microsoft hardcoded it to work this way, or because the AFS client 
> isn't providing the UID value to the _stat call?
>
> I understand that Windows can't map the UID to a name because Windows 
> doesn't use a passwd file.  So I was going to write a quick and dirty 
> app to translate the UID via PTS.  I think tokens works this way?  It 
> would be nicer for Windows users if there was a "fs listowner" or fs 
> lo command...a future?
>
> Rodney
>
> _______________________________________________
> OpenAFS-info mailing list
> OpenAFS-info@openafs.org
> https://lists.openafs.org/mailman/listinfo/openafs-info


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<font face="Bitstream Cyberbit">From the stat() source code:<br>
<br>
<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; /* now set the common fields */<br>
<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; buf-&gt;st_uid = buf-&gt;st_gid = buf-&gt;st_ino = 0;<br>
<br>
UID simply has no meaning on Windows.&nbsp; FYI, stat() as implemented in
the C Runtime Library is <br>
broken on a large number of non-FAT, non-NTFS file systems.&nbsp; I strongly
recommend not using it.<br>
<br>
What is needed is a mapping from UID to SID within the SMB logic; or
within an IFS.<br>
<br>
Jeffrey Altman<br>
<br>
<br>
Rodney M Dyer wrote:</font>
<blockquote cite="mid6.0.0.22.0.20040210130521.032f1150@email.uncc.edu"
 type="cite"><font face="Bitstream Cyberbit">All,
  <br>
  <br>
Is it possible to determine AFS file ownership under Windows?&nbsp; It
appears that this can't be done because the _stat function call only
returns a 0 (zero) UID for a file in AFS space.&nbsp; Is this because
Microsoft hardcoded it to work this way, or because the AFS client
isn't providing the UID value to the _stat call?
  <br>
  <br>
I understand that Windows can't map the UID to a name because Windows
doesn't use a passwd file.&nbsp; So I was going to write a quick and dirty
app to translate the UID via PTS.&nbsp; I think tokens works this way?&nbsp; It
would be nicer for Windows users if there was a "fs listowner" or fs lo
command...a future?
  <br>
  <br>
Rodney
  <br>
  <br>
_______________________________________________
  <br>
OpenAFS-info mailing list
  <br>
<a class="moz-txt-link-abbreviated" href="mailto:OpenAFS-info@openafs.org">OpenAFS-info@openafs.org</a>
  <br>
<a class="moz-txt-link-freetext" href="https://lists.openafs.org/mailman/listinfo/openafs-info">https://lists.openafs.org/mailman/listinfo/openafs-info</a>
  <br>
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