Set sockopts on the listen socket and probe the accepted socket (once)  to see which we do not need to set there because they are inherited.
Set sockopts on the listen socket and probe the accepted socket (once) 
to see which we do not need to set there because they are inherited.

This could potentially save three syscalls per session.



git-svn-id: 2c9807fa3ff65b17195bd55dc8a6c4261e10127b@1045 d4fa192b-c00b-0410-8231-f00ffab90ce4

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