diff --git a/vendor.conf b/vendor.conf
index da971bef83..1c1c75f24a 100644
--- a/vendor.conf
+++ b/vendor.conf
@@ -108,7 +108,7 @@ github.com/containerd/btrfs 2e1aa0ddf94f91fa282b6ed87c23bf0d64911244
 github.com/containerd/fifo fbfb6a11ec671efbe94ad1c12c2e98773f19e1e6
 github.com/containerd/continuity 35d55c5e8dd23b32037d56cf97174aff3efdfa83
 github.com/containerd/cgroups 29da22c6171a4316169f9205ab6c49f59b5b852f
-github.com/containerd/console 84eeaae905fa414d03e07bcd6c8d3f19e7cf180e
+github.com/containerd/console 5d1b48d6114b8c9666f0c8b916f871af97b0a761
 github.com/containerd/go-runc ed1cbe1fc31f5fb2359d3a54b6330d1a097858b7
 github.com/containerd/typeurl f6943554a7e7e88b3c14aad190bf05932da84788
 github.com/dmcgowan/go-tar go1.10
diff --git a/vendor/github.com/containerd/console/console.go b/vendor/github.com/containerd/console/console.go
index bf2798fda3..c187a9b412 100644
--- a/vendor/github.com/containerd/console/console.go
+++ b/vendor/github.com/containerd/console/console.go
@@ -1,3 +1,19 @@
+/*
+   Copyright The containerd Authors.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
 package console
 
 import (
diff --git a/vendor/github.com/containerd/console/console_linux.go b/vendor/github.com/containerd/console/console_linux.go
index c963729296..42274e100e 100644
--- a/vendor/github.com/containerd/console/console_linux.go
+++ b/vendor/github.com/containerd/console/console_linux.go
@@ -1,5 +1,21 @@
 // +build linux
 
+/*
+   Copyright The containerd Authors.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
 package console
 
 import (
@@ -56,7 +72,7 @@ func NewEpoller() (*Epoller, error) {
 	}, nil
 }
 
-// Add creates a epoll console based on the provided console. The console will
+// Add creates an epoll console based on the provided console. The console will
 // be registered with EPOLLET (i.e. using edge-triggered notification) and its
 // file descriptor will be set to non-blocking mode. After this, user should use
 // the return console to perform I/O.
@@ -118,7 +134,7 @@ func (e *Epoller) Wait() error {
 	}
 }
 
-// Close unregister the console's file descriptor from epoll interface
+// CloseConsole unregisters the console's file descriptor from epoll interface
 func (e *Epoller) CloseConsole(fd int) error {
 	e.mu.Lock()
 	defer e.mu.Unlock()
@@ -133,12 +149,12 @@ func (e *Epoller) getConsole(sysfd int) *EpollConsole {
 	return f
 }
 
-// Close the epoll fd
+// Close closes the epoll fd
 func (e *Epoller) Close() error {
 	return unix.Close(e.efd)
 }
 
-// EpollConsole acts like a console but register its file descriptor with a
+// EpollConsole acts like a console but registers its file descriptor with an
 // epoll fd and uses epoll API to perform I/O.
 type EpollConsole struct {
 	Console
@@ -151,7 +167,7 @@ type EpollConsole struct {
 // Read reads up to len(p) bytes into p. It returns the number of bytes read
 // (0 <= n <= len(p)) and any error encountered.
 //
-// If the console's read returns EAGAIN or EIO, we assumes that its a
+// If the console's read returns EAGAIN or EIO, we assume that it's a
 // temporary error because the other side went away and wait for the signal
 // generated by epoll event to continue.
 func (ec *EpollConsole) Read(p []byte) (n int, err error) {
@@ -191,7 +207,7 @@ func (ec *EpollConsole) Read(p []byte) (n int, err error) {
 // written from p (0 <= n <= len(p)) and any error encountered that caused
 // the write to stop early.
 //
-// If writes to the console returns EAGAIN or EIO, we assumes that its a
+// If writes to the console returns EAGAIN or EIO, we assume that it's a
 // temporary error because the other side went away and wait for the signal
 // generated by epoll event to continue.
 func (ec *EpollConsole) Write(p []byte) (n int, err error) {
@@ -208,7 +224,7 @@ func (ec *EpollConsole) Write(p []byte) (n int, err error) {
 			} else {
 				hangup = (err == unix.EAGAIN || err == unix.EIO)
 			}
-			// if the other end disappear, assume this is temporary and wait for the
+			// if the other end disappears, assume this is temporary and wait for the
 			// signal to continue again.
 			if hangup {
 				ec.writec.Wait()
@@ -226,7 +242,7 @@ func (ec *EpollConsole) Write(p []byte) (n int, err error) {
 	return n, err
 }
 
-// Close closed the file descriptor and signal call waiters for this fd.
+// Shutdown closes the file descriptor and signals call waiters for this fd.
 // It accepts a callback which will be called with the console's fd. The
 // callback typically will be used to do further cleanup such as unregister the
 // console's fd from the epoll interface.
@@ -246,10 +262,14 @@ func (ec *EpollConsole) Shutdown(close func(int) error) error {
 
 // signalRead signals that the console is readable.
 func (ec *EpollConsole) signalRead() {
+	ec.readc.L.Lock()
 	ec.readc.Signal()
+	ec.readc.L.Unlock()
 }
 
 // signalWrite signals that the console is writable.
 func (ec *EpollConsole) signalWrite() {
+	ec.writec.L.Lock()
 	ec.writec.Signal()
+	ec.writec.L.Unlock()
 }
diff --git a/vendor/github.com/containerd/console/console_unix.go b/vendor/github.com/containerd/console/console_unix.go
index 118c8c3abf..a4a8d1267b 100644
--- a/vendor/github.com/containerd/console/console_unix.go
+++ b/vendor/github.com/containerd/console/console_unix.go
@@ -1,4 +1,20 @@
-// +build darwin freebsd linux solaris
+// +build darwin freebsd linux openbsd solaris
+
+/*
+   Copyright The containerd Authors.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
 
 package console
 
diff --git a/vendor/github.com/containerd/console/console_windows.go b/vendor/github.com/containerd/console/console_windows.go
index d78a0b8419..ff0174df4f 100644
--- a/vendor/github.com/containerd/console/console_windows.go
+++ b/vendor/github.com/containerd/console/console_windows.go
@@ -1,7 +1,22 @@
+/*
+   Copyright The containerd Authors.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
 package console
 
 import (
-	"fmt"
 	"os"
 
 	"github.com/pkg/errors"
@@ -13,90 +28,55 @@ var (
 	ErrNotImplemented = errors.New("not implemented")
 )
 
-func (m *master) initStdios() {
-	m.in = windows.Handle(os.Stdin.Fd())
-	if err := windows.GetConsoleMode(m.in, &m.inMode); err == nil {
-		// Validate that windows.ENABLE_VIRTUAL_TERMINAL_INPUT is supported, but do not set it.
-		if err = windows.SetConsoleMode(m.in, m.inMode|windows.ENABLE_VIRTUAL_TERMINAL_INPUT); err == nil {
-			vtInputSupported = true
-		}
-		// Unconditionally set the console mode back even on failure because SetConsoleMode
-		// remembers invalid bits on input handles.
-		windows.SetConsoleMode(m.in, m.inMode)
-	} else {
-		fmt.Printf("failed to get console mode for stdin: %v\n", err)
-	}
-
-	m.out = windows.Handle(os.Stdout.Fd())
-	if err := windows.GetConsoleMode(m.out, &m.outMode); err == nil {
-		if err := windows.SetConsoleMode(m.out, m.outMode|windows.ENABLE_VIRTUAL_TERMINAL_PROCESSING); err == nil {
-			m.outMode |= windows.ENABLE_VIRTUAL_TERMINAL_PROCESSING
+func (m *master) init() {
+	m.h = windows.Handle(m.f.Fd())
+	if err := windows.GetConsoleMode(m.h, &m.mode); err == nil {
+		if m.f == os.Stdin {
+			// Validate that windows.ENABLE_VIRTUAL_TERMINAL_INPUT is supported, but do not set it.
+			if err = windows.SetConsoleMode(m.h, m.mode|windows.ENABLE_VIRTUAL_TERMINAL_INPUT); err == nil {
+				vtInputSupported = true
+			}
+			// Unconditionally set the console mode back even on failure because SetConsoleMode
+			// remembers invalid bits on input handles.
+			windows.SetConsoleMode(m.h, m.mode)
+		} else if err := windows.SetConsoleMode(m.h, m.mode|windows.ENABLE_VIRTUAL_TERMINAL_PROCESSING); err == nil {
+			m.mode |= windows.ENABLE_VIRTUAL_TERMINAL_PROCESSING
 		} else {
-			windows.SetConsoleMode(m.out, m.outMode)
+			windows.SetConsoleMode(m.h, m.mode)
 		}
-	} else {
-		fmt.Printf("failed to get console mode for stdout: %v\n", err)
-	}
-
-	m.err = windows.Handle(os.Stderr.Fd())
-	if err := windows.GetConsoleMode(m.err, &m.errMode); err == nil {
-		if err := windows.SetConsoleMode(m.err, m.errMode|windows.ENABLE_VIRTUAL_TERMINAL_PROCESSING); err == nil {
-			m.errMode |= windows.ENABLE_VIRTUAL_TERMINAL_PROCESSING
-		} else {
-			windows.SetConsoleMode(m.err, m.errMode)
-		}
-	} else {
-		fmt.Printf("failed to get console mode for stderr: %v\n", err)
 	}
 }
 
 type master struct {
-	in     windows.Handle
-	inMode uint32
-
-	out     windows.Handle
-	outMode uint32
-
-	err     windows.Handle
-	errMode uint32
+	h    windows.Handle
+	mode uint32
+	f    *os.File
 }
 
 func (m *master) SetRaw() error {
-	if err := makeInputRaw(m.in, m.inMode); err != nil {
-		return err
+	if m.f == os.Stdin {
+		if err := makeInputRaw(m.h, m.mode); err != nil {
+			return err
+		}
+	} else {
+		// Set StdOut and StdErr to raw mode, we ignore failures since
+		// windows.DISABLE_NEWLINE_AUTO_RETURN might not be supported on this version of
+		// Windows.
+		windows.SetConsoleMode(m.h, m.mode|windows.DISABLE_NEWLINE_AUTO_RETURN)
 	}
-
-	// Set StdOut and StdErr to raw mode, we ignore failures since
-	// windows.DISABLE_NEWLINE_AUTO_RETURN might not be supported on this version of
-	// Windows.
-
-	windows.SetConsoleMode(m.out, m.outMode|windows.DISABLE_NEWLINE_AUTO_RETURN)
-
-	windows.SetConsoleMode(m.err, m.errMode|windows.DISABLE_NEWLINE_AUTO_RETURN)
-
 	return nil
 }
 
 func (m *master) Reset() error {
-	for _, s := range []struct {
-		fd   windows.Handle
-		mode uint32
-	}{
-		{m.in, m.inMode},
-		{m.out, m.outMode},
-		{m.err, m.errMode},
-	} {
-		if err := windows.SetConsoleMode(s.fd, s.mode); err != nil {
-			return errors.Wrap(err, "unable to restore console mode")
-		}
+	if err := windows.SetConsoleMode(m.h, m.mode); err != nil {
+		return errors.Wrap(err, "unable to restore console mode")
 	}
-
 	return nil
 }
 
 func (m *master) Size() (WinSize, error) {
 	var info windows.ConsoleScreenBufferInfo
-	err := windows.GetConsoleScreenBufferInfo(m.out, &info)
+	err := windows.GetConsoleScreenBufferInfo(m.h, &info)
 	if err != nil {
 		return WinSize{}, errors.Wrap(err, "unable to get console info")
 	}
@@ -118,11 +98,11 @@ func (m *master) ResizeFrom(c Console) error {
 }
 
 func (m *master) DisableEcho() error {
-	mode := m.inMode &^ windows.ENABLE_ECHO_INPUT
+	mode := m.mode &^ windows.ENABLE_ECHO_INPUT
 	mode |= windows.ENABLE_PROCESSED_INPUT
 	mode |= windows.ENABLE_LINE_INPUT
 
-	if err := windows.SetConsoleMode(m.in, mode); err != nil {
+	if err := windows.SetConsoleMode(m.h, mode); err != nil {
 		return errors.Wrap(err, "unable to set console to disable echo")
 	}
 
@@ -134,15 +114,15 @@ func (m *master) Close() error {
 }
 
 func (m *master) Read(b []byte) (int, error) {
-	panic("not implemented on windows")
+	return m.f.Read(b)
 }
 
 func (m *master) Write(b []byte) (int, error) {
-	panic("not implemented on windows")
+	return m.f.Write(b)
 }
 
 func (m *master) Fd() uintptr {
-	return uintptr(m.in)
+	return uintptr(m.h)
 }
 
 // on windows, console can only be made from os.Std{in,out,err}, hence there
@@ -194,7 +174,7 @@ func newMaster(f *os.File) (Console, error) {
 	if f != os.Stdin && f != os.Stdout && f != os.Stderr {
 		return nil, errors.New("creating a console from a file is not supported on windows")
 	}
-	m := &master{}
-	m.initStdios()
+	m := &master{f: f}
+	m.init()
 	return m, nil
 }
diff --git a/vendor/github.com/containerd/console/tc_darwin.go b/vendor/github.com/containerd/console/tc_darwin.go
index b102bad743..b0128abb0c 100644
--- a/vendor/github.com/containerd/console/tc_darwin.go
+++ b/vendor/github.com/containerd/console/tc_darwin.go
@@ -1,3 +1,19 @@
+/*
+   Copyright The containerd Authors.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
 package console
 
 import (
diff --git a/vendor/github.com/containerd/console/tc_freebsd.go b/vendor/github.com/containerd/console/tc_freebsd.go
index e2a10e4413..04583a6156 100644
--- a/vendor/github.com/containerd/console/tc_freebsd.go
+++ b/vendor/github.com/containerd/console/tc_freebsd.go
@@ -1,3 +1,19 @@
+/*
+   Copyright The containerd Authors.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
 package console
 
 import (
diff --git a/vendor/github.com/containerd/console/tc_linux.go b/vendor/github.com/containerd/console/tc_linux.go
index 80ef2f6fb3..1bdd68e6d5 100644
--- a/vendor/github.com/containerd/console/tc_linux.go
+++ b/vendor/github.com/containerd/console/tc_linux.go
@@ -1,3 +1,19 @@
+/*
+   Copyright The containerd Authors.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
 package console
 
 import (
@@ -13,25 +29,21 @@ const (
 	cmdTcSet = unix.TCSETS
 )
 
-func ioctl(fd, flag, data uintptr) error {
-	if _, _, err := unix.Syscall(unix.SYS_IOCTL, fd, flag, data); err != 0 {
-		return err
-	}
-	return nil
-}
-
 // unlockpt unlocks the slave pseudoterminal device corresponding to the master pseudoterminal referred to by f.
 // unlockpt should be called before opening the slave side of a pty.
 func unlockpt(f *os.File) error {
 	var u int32
-	return ioctl(f.Fd(), unix.TIOCSPTLCK, uintptr(unsafe.Pointer(&u)))
+	if _, _, err := unix.Syscall(unix.SYS_IOCTL, f.Fd(), unix.TIOCSPTLCK, uintptr(unsafe.Pointer(&u))); err != 0 {
+		return err
+	}
+	return nil
 }
 
 // ptsname retrieves the name of the first available pts for the given master.
 func ptsname(f *os.File) (string, error) {
-	n, err := unix.IoctlGetInt(int(f.Fd()), unix.TIOCGPTN)
-	if err != nil {
+	var u uint32
+	if _, _, err := unix.Syscall(unix.SYS_IOCTL, f.Fd(), unix.TIOCGPTN, uintptr(unsafe.Pointer(&u))); err != 0 {
 		return "", err
 	}
-	return fmt.Sprintf("/dev/pts/%d", n), nil
+	return fmt.Sprintf("/dev/pts/%d", u), nil
 }
diff --git a/vendor/github.com/containerd/console/tc_openbsd_cgo.go b/vendor/github.com/containerd/console/tc_openbsd_cgo.go
new file mode 100644
index 0000000000..f0cec06a72
--- /dev/null
+++ b/vendor/github.com/containerd/console/tc_openbsd_cgo.go
@@ -0,0 +1,51 @@
+// +build openbsd,cgo
+
+/*
+   Copyright The containerd Authors.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+package console
+
+import (
+	"os"
+
+	"golang.org/x/sys/unix"
+)
+
+//#include <stdlib.h>
+import "C"
+
+const (
+	cmdTcGet = unix.TIOCGETA
+	cmdTcSet = unix.TIOCSETA
+)
+
+// ptsname retrieves the name of the first available pts for the given master.
+func ptsname(f *os.File) (string, error) {
+	ptspath, err := C.ptsname(C.int(f.Fd()))
+	if err != nil {
+		return "", err
+	}
+	return C.GoString(ptspath), nil
+}
+
+// unlockpt unlocks the slave pseudoterminal device corresponding to the master pseudoterminal referred to by f.
+// unlockpt should be called before opening the slave side of a pty.
+func unlockpt(f *os.File) error {
+	if _, err := C.grantpt(C.int(f.Fd())); err != nil {
+		return err
+	}
+	return nil
+}
diff --git a/vendor/github.com/containerd/console/tc_openbsd_nocgo.go b/vendor/github.com/containerd/console/tc_openbsd_nocgo.go
new file mode 100644
index 0000000000..daccce2058
--- /dev/null
+++ b/vendor/github.com/containerd/console/tc_openbsd_nocgo.go
@@ -0,0 +1,47 @@
+// +build openbsd,!cgo
+
+/*
+   Copyright The containerd Authors.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+//
+// Implementing the functions below requires cgo support.  Non-cgo stubs
+// versions are defined below to enable cross-compilation of source code
+// that depends on these functions, but the resultant cross-compiled
+// binaries cannot actually be used.  If the stub function(s) below are
+// actually invoked they will display an error message and cause the
+// calling process to exit.
+//
+
+package console
+
+import (
+	"os"
+
+	"golang.org/x/sys/unix"
+)
+
+const (
+	cmdTcGet = unix.TIOCGETA
+	cmdTcSet = unix.TIOCSETA
+)
+
+func ptsname(f *os.File) (string, error) {
+	panic("ptsname() support requires cgo.")
+}
+
+func unlockpt(f *os.File) error {
+	panic("unlockpt() support requires cgo.")
+}
diff --git a/vendor/github.com/containerd/console/tc_solaris_cgo.go b/vendor/github.com/containerd/console/tc_solaris_cgo.go
index f8066d8e39..e36a68edd1 100644
--- a/vendor/github.com/containerd/console/tc_solaris_cgo.go
+++ b/vendor/github.com/containerd/console/tc_solaris_cgo.go
@@ -1,5 +1,21 @@
 // +build solaris,cgo
 
+/*
+   Copyright The containerd Authors.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
 package console
 
 import (
diff --git a/vendor/github.com/containerd/console/tc_solaris_nocgo.go b/vendor/github.com/containerd/console/tc_solaris_nocgo.go
index 0aefa0d2bb..eb0bd2c36b 100644
--- a/vendor/github.com/containerd/console/tc_solaris_nocgo.go
+++ b/vendor/github.com/containerd/console/tc_solaris_nocgo.go
@@ -1,5 +1,21 @@
 // +build solaris,!cgo
 
+/*
+   Copyright The containerd Authors.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
 //
 // Implementing the functions below requires cgo support.  Non-cgo stubs
 // versions are defined below to enable cross-compilation of source code
diff --git a/vendor/github.com/containerd/console/tc_unix.go b/vendor/github.com/containerd/console/tc_unix.go
index df7dcb9334..7ae773c53e 100644
--- a/vendor/github.com/containerd/console/tc_unix.go
+++ b/vendor/github.com/containerd/console/tc_unix.go
@@ -1,4 +1,20 @@
-// +build darwin freebsd linux solaris
+// +build darwin freebsd linux openbsd solaris
+
+/*
+   Copyright The containerd Authors.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
 
 package console