Subject: Re: bug#23615: 25.1.50; Which platforms can safely use getsockopt(,,SO_ERROR,,)?

From: Paul Eggert <[email-masked]>
Date: Thu, 2 Jun 2016 09:00:00 -0700

On Solaris 10 on a host with only IPv4 configured, socket_test.c fails 
with the diagnostic "Can't start server." 'truss' says connect(3, 
0x00021EE8, 16, SOV_DEFAULT) failed with errno == EOPNOTSUPP.

On Solaris 11 with both IPv4 and IPv6, the same symptoms except errno == 
EADDRNOTAVAIL.