Make sure we create correct socket family. #334
Merged
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Motivation:
If a server binds "localhost", and then we try to connect with an
AF_INET socket, then on macOS at least some of the time we will have
a protocol mismatch, as at least some of the time localhost will have
resolved to ::1 before 127.0.0.1.
That's bad.
Modifications:
Create a socket whose address family matches the server's.
Result:
This test will pass more often