[CFT] net/gatekeeper: fixed DoS, CVE-2012-3534

[Eygene Ryabinkin]

I had backported denial-of-service fixes from version 3.1,
  http://codelabs.ru/fbsd/ports/gatekeeper/gnugk-fix-cve-2012-3534.diff
but I don't use GNU gatekeeper in production.

Patched version contains new configuration knob, MaxStatusClients,
that is 20 by-default and is used to limit the number of simultaneous
connections.  I am interested in
 - testing that the patched version works and has no regressions;
 - MaxStatusClients really works.

Thanks in advance.
-- 
Eygene Ryabinkin                                        ,,,^..^,,,
[ Life's unfair - but root password helps!           | codelabs.ru ]
[ 82FE 06BC D497 C0DE 49EC  4FF0 16AF 9EAE 8152 ECFB | freebsd.org ]
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