On Apr 27 12:26, Christian Franke wrote:
> access("/proc/registry/...", F_OK) returns 0 for all (including
> nonexistent) entries below a registry key which cannot be opened:
>
> Testcase (run with admin rights):
>
> # cygcheck -f /bin/cygwin1.dll
> cygwin-1.7.9-1
>
> # cd /proc/registry/HKEY_LOCAL_MACHINE
>
> # ls SECURITY
> Cache Policy RXACT SAM
>
> # cygdrop -- ls SECURITY
> ls: reading directory SECURITY: Permission denied
>
> # test -e SECURITY/NoSuchFile && echo yes
>
> # cygdrop -- test -e SECURITY/NoSuchFile && echo yes
> yes
>
>
> Problem was likely introduced by fhandler_registry.cc change 1.52:
>
> fhandler_registry::exists ()
> ...
> if (!val_only)
> hKey = open_key (path, KEY_READ, wow64, false);
> - if (hKey != (HKEY) INVALID_HANDLE_VALUE)
> + if (hKey != (HKEY) INVALID_HANDLE_VALUE || get_errno () == EACCES)
> file_type = 1;
> else
>
> open_key() returns INVALID_HANDLE_VALUE and EACCESS also if an upper
> level key cannot be opened. The exists() function returns 1
> (virt_directory) then, it should return 0 (virt_none).
I don't remember anymore why I did that and naturally I also didn't
write a comment.
But what you say sounds right to me. Please create a patch.
Thanks,
Corinna
--
Corinna Vinschen Please, send mails regarding Cygwin to
Cygwin Project Co-Leader cygwin AT cygwin DOT com
Red Hat
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