Update go-runc to abd8eada6a98acdf415d47a8d372dc314494c07f

Signed-off-by: Michael Crosby <crosbymichael@gmail.com>

vendor/github.com/crosbymichael/go-runc/console.go

@@ -0,0 +1,99 @@
+package runc
+
+import (
+	"fmt"
+	"net"
+	"os"
+
+	"github.com/docker/docker/pkg/term"
+	"github.com/opencontainers/runc/libcontainer/utils"
+)
+
+// NewConsoleSocket creates a new unix socket at the provided path to accept a
+// pty master created by runc for use by the container
+func NewConsoleSocket(path string) (*ConsoleSocket, error) {
+	l, err := net.Listen("unix", path)
+	if err != nil {
+		return nil, err
+	}
+	return &ConsoleSocket{
+		l:    l,
+		path: path,
+	}, nil
+}
+
+// ConsoleSocket is a unix socket that accepts the pty master created by runc
+type ConsoleSocket struct {
+	path string
+	l    net.Listener
+}
+
+// Path returns the path to the unix socket on disk
+func (c *ConsoleSocket) Path() string {
+	return c.path
+}
+
+// ReceiveMaster blocks until the socket receives the pty master
+func (c *ConsoleSocket) ReceiveMaster() (*Console, error) {
+	conn, err := c.l.Accept()
+	if err != nil {
+		return nil, err
+	}
+	defer conn.Close()
+	unix, ok := conn.(*net.UnixConn)
+	if !ok {
+		return nil, fmt.Errorf("received connection which was not a unix socket")
+	}
+	sock, err := unix.File()
+	if err != nil {
+		return nil, err
+	}
+	f, err := utils.RecvFd(sock)
+	if err != nil {
+		return nil, err
+	}
+	return &Console{
+		master: f,
+	}, nil
+}
+
+// Close closes the unix socket
+func (c *ConsoleSocket) Close() error {
+	return c.l.Close()
+}
+
+// WinSize specifies the console size
+type WinSize struct {
+	// Width of the console
+	Width uint16
+	// Height of the console
+	Height uint16
+}
+
+// Console is a pty master
+type Console struct {
+	master *os.File
+}
+
+// Read from the console
+func (c *Console) Read(b []byte) (int, error) {
+	return c.master.Read(b)
+}
+
+// Write writes to the console
+func (c *Console) Write(b []byte) (int, error) {
+	return c.master.Write(b)
+}
+
+// Resize the console
+func (c *Console) Resize(ws WinSize) error {
+	return term.SetWinsize(c.master.Fd(), &term.Winsize{
+		Width:  ws.Width,
+		Height: ws.Height,
+	})
+}
+
+// Close the console
+func (c *Console) Close() error {
+	return c.master.Close()
+}