[h323plus] PTLIb / FORTIFY_SOURCE problems.

[Francisco Olarte]

I've hit a problem with PTlib 2.10.9 / h323plus 1.25.0 which surfaces
on linux glibc  systems in which FORTIFY_SOURCE enables checking fd <
FD_SETSIZE on FD_SET/CLR/ISSET. It manifest itselfs as an immediate
core dump when using high fds ( as I'm working with a yate instance
translating h323-sip which uses about 15-16 handles per call, which
made me raise open file limit to 8k, I cannot go above 60 calls ).

I've reported it to ptlib developers (
https://sourceforge.net/p/opalvoip/bugs/496/ ) and developed a patch
against ptlib to try to make it work. I'm presently preparing load
tests for it.

As h323plus uses this ptlib version ( and normally release version has
problem with more recent ones ) and I've verified the same code is
present in ptlibs trunk head, I wonder if I should send the patch when
it's being tested to some place where it can be located and used by
interested h323plus users ( it applies cleanly to ptlib 2.10.9 ).

Any idea?

Regards.
    Francisco Olarte.