Change uipc_sockaddr so that a sockaddr_un without a path is returned nam for an unbound socket instead of leaving nam untouched in that case. This way, the getsockname() output can be used to determine the address family of such sockets (AF_LOCAL).
Change uipc_sockaddr so that a sockaddr_un without a path is returned
nam for an unbound socket instead of leaving nam untouched in that case.
This way, the getsockname() output can be used to determine the address
family of such sockets (AF_LOCAL).

Reviewed by:	iedowse
Approved by:	rwatson

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