[PATCH] Fix access("/proc/registry/HKEY_PERFORMANCE_DATA", R_OK)

Corinna Vinschen corinna-cygwin@cygwin.com
Fri May 6 07:14:00 GMT 2011

On May  5 23:08, Christian Franke wrote:
> Corinna Vinschen wrote:
> >On May  5 18:51, Christian Franke wrote:
> >>This patch fixes access("/proc/registry/HKEY_PERFORMANCE_DATA",
> >>R_OK) which always fails with EBADF.
> >>
> >>Christian
> >>
> >>2011-05-05  Christian Franke<...>
> >>
> >>	* security.cc (check_registry_access): Handle missing
> >>	security descriptor of HKEY_PERFORMANCE_DATA.
> >Do you have check in rights?  If so, please check in.
> >
> No check in rights, sorry :-)

http://sourceware.org/cgi-bin/pdw/ps_form.cgi, project Cygwin, approver me.

However, I just had another look into your patch and I have a problem
here.  On what system and with what type of user account did you test?

Here's what I get on Windows 2008 and W7:

$ ~/tests/access /proc/registry/HKEY_PERFORMANCE_DATA
access (/proc/registry/HKEY_PERFORMANCE_DATA, F_OK) = 0
access (/proc/registry/HKEY_PERFORMANCE_DATA, R_OK) = -1 <Permission denied>
access (/proc/registry/HKEY_PERFORMANCE_DATA, W_OK) = -1 <Read-only file system>
access (/proc/registry/HKEY_PERFORMANCE_DATA, X_OK) = -1 <Bad file descriptor>

The result is the same on W7 and 2008.  I tried with a normal user
account, as well as with an admin account, with full rights as well as


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

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