Database backed virtual directories for pure-ftpd

[draco2003]

This is the code to allow pure-ftpd to present virtual directories to the ftp client.

[feralbob]

Is there any progress on getting this integrated into master? This would be real handy for something I'm looking into.

[reikoshea]

So there was one big issue with this patch. Fasmide mentioned it, there's a buffer overrun possible in this patch (which is what causes that random client disconnect after auth).

fakechroot.c (line 253):

Current:
memcpy(curdir_virtual, dir_storage, sizeof dir_storage + (size_t) 1U);
Proposed:
memcpy(curdir_virtual, dir_storage, MAXPATHLEN);

I'm running the patch in my testing, and it's working quite well (Before I was getting the same issue as fasmide).

[yuzer]

Hi,
Any news to have this patch + reikoshea correction integrated into master branch ?
Line 253 in fakechroot.c cause a buffer overflow (*** buffer overflow detected ***: pure-ftpd (IDLE) terminated)
@reikoshea : When I change line 253 in fakechroot.c . I can login to ftp but I don't see virtual directory.
I tested to launch pure-ftpd with/without -A; -d shows no interesting information, no error.
I tested different --with parameter during configure (like --with-virtualchroot, --with-everything).
Strace shows MySQLGetVirtualDirs query and mysql log too.

@fasmide : Have you finally managed to got it working ?

Any Idea ?

[jedisct1]

Sorry, I'm not very comfortable with changes to the virtual chroot code, especially when the data comes from an SQL database.