// which consists of network facility information, states and
// parameters.
//
// Deprecated: Use golang.org/x/net/route instead.
func RouteRIB(facility, param int) ([]byte, error) {
	mib := []_C_int{CTL_NET, AF_ROUTE, 0, 0, _C_int(facility), _C_int(param)}
	// Find size.
	n := uintptr(0)
	if err := sysctl(mib, nil, &n, nil, 0); err != nil {
		return nil, err
	}
	if n == 0 {
		return nil, nil
	}

		{"CSIZE", Const, 0},
		{"CSTART", Const, 1},
		{"CSTATUS", Const, 1},
		{"CSTOP", Const, 1},
		{"CSTOPB", Const, 0},
		{"CSUSP", Const, 1},
		{"CTL_MAXNAME", Const, 0},
		{"CTL_NET", Const, 0},
		{"CTL_QUERY", Const, 1},
		{"CTRL_BREAK_EVENT", Const, 1},
		{"CTRL_CLOSE_EVENT", Const, 14},
		{"CTRL_C_EVENT", Const, 1},
		{"CTRL_LOGOFF_EVENT", Const, 14},