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Re: directory listing differences
- From: Joseph Michaud <jmichaud at sgi dot com>
- To: cygwin at cygwin dot com
- Date: Thu, 07 Jun 2007 11:45:40 -0400
- Subject: Re: directory listing differences
Shankar Unni wrote:
Joseph Michaud wrote:
Administrator@HeadNode /cygdrive/c/windows/system32
$ ls -al tsdiscon.exe tsecimp.exe
ls: cannot access tsdiscon.exe: No such file or directory
That's probably because the file is exclusively locked, and the "stat" performed by "ls" fails.
See if you see the file if you pass in the "-f" option to ls:
$ ls -f tsdiscon.exe tsecimp.exe
If you can, then this is the issue. Looks like CMD.EXE is able to examine whatever it needs from such files, but stat() in the cygwin library cannot (uses different APIs).
I see similar behavior in a file that PointSec drops in my C:\\ (PROT_INS.SYS). In fact, even "ls -f" is not able to get any info on that file!
% cmd /c dir /AH c:\\prot_ins.sys
Volume in drive C has no label.
Volume Serial Number is A8B1-8402
Directory of c:\
03/22/2007 11:03 AM 2,097,152 PROT_INS.SYS
1 File(s) 2,097,152 bytes
0 Dir(s) 4,296,351,744 bytes free
% ls -ln c:\\prot_ins.sys
ls: cannot access c:\prot_ins.sys: Input/Output error
% ls -f c:\\prot_ins.sys
ls: cannot access c:\prot_ins.sys: Input/Output error
Nope, that's not quite it for me. I try "ls -f" but still don't see
the file.
One interesting tidbit is that if, from the bash shell, I invoke
a Windows CMD shell, then that CMD shell similarly doesn't see the
file.
I conclude from this that somehow the bash shell doesn't have
some appropriate privilege and that bash's children similarly
lack this privilege, but I can't figure out why two files with
seemingly similar permissions are different.
I note that I see this problem on a Windows 2003 Compute Cluster Server
domain controller head node (and its compute nodes) but not
not on a Windows XP 64 laptop. (Perhaps something with domain
controller security policy is affecting this...)
Any tips on what other info I can look for would help.
Thanks.
Joe
--
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Joseph Michaud - SGI Apps Eng 978-562-8808 x483-8808 jmichaud@sgi.com
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