if _, err := c.(*UnixConn).WriteToUnix(b, raddr); err == nil {
		t.Fatal("should fail")
	} else if err.(*OpError).Err != ErrWriteToConnected {
		t.Fatalf("should fail as ErrWriteToConnected: %v", err)
	}
	if _, err = c.(*UnixConn).WriteTo(b, raddr); err == nil {
		t.Fatal("should fail")
	} else if err.(*OpError).Err != ErrWriteToConnected {
		t.Fatalf("should fail as ErrWriteToConnected: %v", err)
	}

	if err == nil {
		t.Fatal("should fail")
	}
	if err != nil && err.(*OpError).Err != ErrWriteToConnected {
		t.Fatalf("should fail as ErrWriteToConnected: %v", err)
	}
	_, err = c.(*UDPConn).WriteTo(b, ra)
	if err == nil {
		t.Fatal("should fail")
	}
	if err != nil && err.(*OpError).Err != ErrWriteToConnected {
		t.Fatalf("should fail as ErrWriteToConnected: %v", err)
	}

			ucred.Pid = int32(os.Getpid())
			ucred.Uid = 0
			ucred.Gid = 0
			oob := syscall.UnixCredentials(&ucred)
			_, _, err := cli.(*net.UnixConn).WriteMsgUnix(nil, oob, nil)
			if op, ok := err.(*net.OpError); ok {
				err = op.Err
			}
			if sys, ok := err.(*os.SyscallError); ok {
				err = sys.Err
			}
			switch err {
			case syscall.EPERM, syscall.EINVAL:
			default:

	}
	var buf [16]byte
	n, err := f.Read(buf[:])
	if err != nil {
		f.Close()
		return
	}
	return f, dest, proto, string(buf[:n]), nil
}

func fixErr(err error) {
	oe, ok := err.(*OpError)
	if !ok {
		return
	}
	nonNilInterface := func(a Addr) bool {
		switch a := a.(type) {
		case *TCPAddr:
			return a == nil
		case *UDPAddr:
			return a == nil
		case *IPAddr:

	if errors.Is(err, syscall.EADDRINUSE) {
		return ErrPortAlreadyInUse(err).Msg("Specified port is already in use")
	} else if errors.Is(err, syscall.EACCES) || errors.Is(err, syscall.EPERM) {
		if netErr, ok := err.(*net.OpError); ok {
			return ErrPortAccess(netErr).Msg("Insufficient permissions to use specified port")
		}
	}

	// Failed to identify what type of error this, return a simple UI error
	return Err{msg: err.Error()}
}

		return nil, errExpectedBool
	}
	return FromBool(!b), nil
}

func (e *ConditionOperand) evalNode(r Record, tableAlias string) (*Value, error) {
	opVal, opErr := e.Operand.evalNode(r, tableAlias)
	if opErr != nil || e.ConditionRHS == nil {
		return opVal, opErr
	}

	// Need to evaluate the ConditionRHS
	switch {
	case e.ConditionRHS.Compare != nil:

		if ipnet, ok := addr.(*IPNet); ok && (ipnet.IP.To4() != nil) == have4 {
			_, err = l.ctl.WriteString("addmulti " + ipnet.IP.String() + " " + gaddr.IP.String())
			if err != nil {
				return nil, &OpError{Op: "addmulti", Net: "", Source: nil, Addr: ipnet, Err: err}
			}
		}
	}
	l.data, err = os.OpenFile(l.dir+"/data", os.O_RDWR, 0)
	if err != nil {
		return nil, err
	}
	fd, err := l.netFD()

}

func (c *conn) writeBuffers(v *Buffers) (int64, error) {
	if !c.ok() {
		return 0, syscall.EINVAL
	}
	n, err := c.fd.writeBuffers(v)
	if err != nil {
		return n, &OpError{Op: "wsasend", Net: c.fd.net, Source: c.fd.laddr, Addr: c.fd.raddr, Err: err}
	}
	return n, nil
}

func (fd *netFD) writeBuffers(buf *Buffers) (int64, error) {
	n, err := fd.pfd.Writev((*[][]byte)(buf))

		OpRsh16Ux64, OpLsh8x64, OpRsh8x64, OpRsh8Ux64,
		// safety check
		OpIsInBounds, OpIsSliceInBounds,
		// bit
		OpAnd8, OpAnd16, OpAnd32, OpAnd64,
		OpOr8, OpOr16, OpOr32, OpOr64,
		OpXor8, OpXor16, OpXor32, OpXor64:
		return true
	default:
		return false
	}
}

func (t *worklist) getLatticeCell(val *Value) lattice {
	if !possibleConst(val) {
		// they are always worst

		return true
	}
	l := fd.laddr.(*TCPAddr)
	r := fd.raddr.(*TCPAddr)
	return l.Port == r.Port && l.IP.Equal(r.IP)
}

func spuriousENOTAVAIL(err error) bool {
	if op, ok := err.(*OpError); ok {
		err = op.Err
	}
	if sys, ok := err.(*os.SyscallError); ok {
		err = sys.Err
	}
	return err == syscall.EADDRNOTAVAIL
}

func (ln *TCPListener) ok() bool { return ln != nil && ln.fd != nil }