Re: [Firebird-devel] Access to UDF is denied

[Alex P. <pes...@ma...>]

On 06/23/13 22:18, Adriano dos Santos Fernandes wrote:
> Hi!
>
> This error is inconsistent in 2.5 and 3.0!
>
> 2.5 accepts a DECLARE for a denied module, but rejects it if a procedure
> references the function. This happens because DFW does not load the just
> declared function, but it happens when it is referenced. This is at
> least strange.

Legacy behavior - exists at least since ib6.

>
> In 3.0 DFW loads it and rejects it right on the declaration. But it
> happens then that restore may not work (I guess it may not work in 2.5
> too

Due to this code (2.5) it's just a warning:

         if (tdbb->getAttachment()->att_flags & ATT_gbak_attachment)
         {
             warning(Arg::Warning(isc_funnotdef) << Arg::Str(name) <<
                     Arg::Warning(isc_modnotfound));
         }
         else {
             csb->csb_blr_reader.seekBackward(count);
             error(csb, Arg::Gds(isc_funnotdef) << Arg::Str(name) <<
                        Arg::Gds(isc_modnotfound));
         }

> ). Currently this error in restore makes metadata wrong and causes
> somewhat unrelated crashes with procedures not completely loaded.
>
>

How do you want to fix this? For me 2.5 is OK - may be with the warning 
when declaring missing function in addittion to what we have now.