rwatson 585452751e Add a regression test for listen()'s backlog argument, both at time of
creation and at time of update using an additional call to listen().
This test also exercises SO_LISTENQLIMIT, a forthcoming socket option
that allows the retrieval (but not setting) of the queue limit.

Discussed with:	andre
2005-09-18 13:42:19 +00:00
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