// implementation of CTR, like crypto/aes. NewCTR will check for this interface
// and return the specific Stream if found.
type ctrAble interface {
	NewCTR(iv []byte) Stream
}

// NewCTR returns a [Stream] which encrypts/decrypts using the given [Block] in
// counter mode. The length of iv must be the same as the [Block]'s block size.
func NewCTR(block Block, iv []byte) Stream {
	if ctr, ok := block.(ctrAble); ok {

}

func ValidateCertificateSigningRequestUpdate(newCSR, oldCSR *certificates.CertificateSigningRequest) field.ErrorList {
	opts := getValidationOptions(newCSR, oldCSR)
	return validateCertificateSigningRequestUpdate(newCSR, oldCSR, opts)
}

func ValidateCertificateSigningRequestStatusUpdate(newCSR, oldCSR *certificates.CertificateSigningRequest) field.ErrorList {
	opts := getValidationOptions(newCSR, oldCSR)
	opts.allowSettingCertificate = true

		Usages:     validUsages,
		Request:    newCSRPEM(t),
		SignerName: "example.com/something",
	}

	tests := []struct {
		name   string
		newCSR *capi.CertificateSigningRequest
		oldCSR *capi.CertificateSigningRequest
		errs   []string
	}{{
		name:   "no-op",
		newCSR: &capi.CertificateSigningRequest{ObjectMeta: validUpdateMeta, Spec: validSpec},

  TF_ASSIGN_OR_RETURN(Node * new_in, graph_->AddNode(new_in_def));

  for (const Edge* e : n->in_edges()) {
    if (e->IsControlEdge()) {
      graph_->AddControlEdge(e->src(), new_in);
    } else {
      graph_->AddEdge(e->src(), e->src_output(), new_in, e->dst_input());
    }
  }

  new_in->set_assigned_device_name(n->assigned_device_name());
  return new_in;
}

namespace {

			return types.NullValue
		}
		return types.NewErr("invalid data, got null for schema with nullable=false")
	}
	if schema.IsXIntOrString() {
		switch v := unstructured.(type) {
		case string:
			return types.String(v)
		case int:
			return types.Int(v)
		case int32:
			return types.Int(v)
		case int64:
			return types.Int(v)
		}

	}
	name := string(buf[:n])
	ctl, err := os.OpenFile(netdir+"/"+fd.net+"/"+name+"/ctl", os.O_RDWR, 0)
	if err != nil {
		listen.Close()
		return nil, err
	}
	data, err := os.OpenFile(netdir+"/"+fd.net+"/"+name+"/data", os.O_RDWR, 0)
	if err != nil {
		listen.Close()
		ctl.Close()
		return nil, err
	}
	raddr, err := readPlan9Addr(fd.net, netdir+"/"+fd.net+"/"+name+"/remote")
	if err != nil {
		listen.Close()

            if (uri.startsWith("jar:")) {
                int pos = uri.indexOf('!')
                def newURI = uri.substring(0, pos + 2)
                return new URI(newURI).toURL()
            } else {
                def newURI = uri - resource
                return new URI(newURI).toURL()
            }
        }
    }

	t.String = types.Types[types.TSTRING]
	t.BytePtr = types.NewPtr(types.Types[types.TUINT8])
	t.Int32Ptr = types.NewPtr(types.Types[types.TINT32])
	t.UInt32Ptr = types.NewPtr(types.Types[types.TUINT32])
	t.IntPtr = types.NewPtr(types.Types[types.TINT])
	t.UintptrPtr = types.NewPtr(types.Types[types.TUINTPTR])
	t.Float32Ptr = types.NewPtr(types.Types[types.TFLOAT32])
	t.Float64Ptr = types.NewPtr(types.Types[types.TFLOAT64])

		}
		defer close(fd)

		dir := netdir + "/" + comp[n-2]
		ctl = os.NewFile(uintptr(fd), dir+"/"+file)
		ctl.Seek(0, io.SeekStart)
		var buf [16]byte
		n, err := ctl.Read(buf[:])
		if err != nil {
			return nil, err
		}
		name = string(buf[:n])
	default:
		if len(comp) < 4 {
			return nil, errors.New("could not find control file for connection")
		}
		dir := netdir + "/" + comp[1] + "/" + name

	}
	return []Interface{*ifc}, nil
}

func readInterface(i int) (*Interface, error) {
	ifc := &Interface{
		Index: i + 1,                             // Offset the index by one to suit the contract
		Name:  netdir + "/ipifc/" + itoa.Itoa(i), // Name is the full path to the interface path in plan9
	}

	ifcstat := ifc.Name + "/status"
	ifcstatf, err := open(ifcstat)
	if err != nil {
		return nil, err
	}