INSIST that accept() returns a socket of the correct protocol family.  Also assign the "pf" field in the new socket.
INSIST that accept() returns a socket of the correct protocol family.  Also
assign the "pf" field in the new socket.

each/bind9-collab,each/bind9-collab,pecharmin/bind9,pecharmin/bind9,pecharmin/bind9,each/bind9-collab,pecharmin/bind9,each/bind9-collab,pecharmin/bind9,each/bind9-collab,pecharmin/bind9,each/bind9-collab