I think I have what is needed.
ACCESS(2) Linux Programmer's Manual
ACCESS(2)
NAME
access - check real user's permissions for a file
SYNOPSIS
#include <unistd.h>
int access(const char *pathname, int mode);
Thierry
Le 02/07/2013 15:12, Camillo Bruni a écrit :
On 2013-07-02, at 15:11, Goubier Thierry <[email protected]> wrote:
Le 02/07/2013 15:02, Camillo Bruni a écrit :
Le 02/07/2013 11:44, Sven Van Caekenberghe a écrit :
Hi Thierry,
On 02 Jul 2013, at 11:34, Goubier Thierry <[email protected]> wrote:
Hi all,
it seems FileSystem permissions are not working at all like intended in Linux,
and it's the case in both 2.0 and 3.0 (but it 3.0 it has the elegance of
rendering the file browser and all file dialogs unusable :().
https://pharo.fogbugz.com/f/cases/11102/FileSystemError-Path-root
(an entry like drwx------ 10 root root 4096 mai 15 13:26 /root is readable
according to FileReference :()
Is there any point in the vm to do a fstat/stat ?
I think the basic information is there, see
FileSystemDirectoryEntry>>posixPermissions. It seems that the way that information
is subsequently handled in Pharo is wrong, or at least way too simple. The question is of
course, what is a good cross platform API. Mac OS X & Linux will be quite similar,
but Windows ?
No, it's not. There are no primitives I could see in FilePlugin (at least the
ones used) to write correct permissions in Pharo... In short, no isReadable,
isWriteable can be made correct in Pharo at the moment.
I wrote test code expecting this to work :(
nope there is indeed no code for this.
We modified the VM to support the permission reading, but we didn't add support
for writing it.
Maybe this is again a nice usecase for NativeBoost?
I'm ready to try. Anybody to explain me how to use NativeBoost for that?
You can check the OSEnvironment classes, they use getenv / setenv to accomplish
simple callouts.
But I think fstat is more complex than that since it returns a struct and pass
in
the proper file descriptors :/...
As an immediate ver short term solution under linux I suggest using OSProcess +
a chmod call :(
--
Thierry Goubier
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