added freebsd implementation NOTE: bsd's tcp_recv_error does not cover all cases

core/net/socket_freebsd.odin

@@ -153,6 +153,20 @@ _bound_endpoint :: proc(sock: Any_Socket) -> (ep: Endpoint, err: Listen_Error) {
 	return
 }
 
+@(private)
+_peer_endpoint :: proc(sock: Any_Socket) -> (ep: Endpoint, err: TCP_Recv_Error) {
+	sockaddr: freebsd.Socket_Address_Storage
+
+	errno := freebsd.getpeername(cast(Fd)any_socket_to_socket(sock), &sockaddr)
+	if errno != nil {
+		err = _tcp_recv_error(errno)
+		return
+	}
+
+	ep = _sockaddr_to_endpoint(&sockaddr)
+	return
+}
+
 @(private)
 _accept_tcp :: proc(sock: TCP_Socket, options := DEFAULT_TCP_OPTIONS) -> (client: TCP_Socket, source: Endpoint, err: Accept_Error) {
 	sockaddr: freebsd.Socket_Address_Storage