66 lines
1.1 KiB
Go
66 lines
1.1 KiB
Go
package main
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import (
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"io"
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"os"
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"github.com/codegangsta/cli"
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"github.com/docker/docker/pkg/term"
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"github.com/docker/libcontainer"
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)
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func newTty(context *cli.Context, p *libcontainer.Process, rootuid int) (*tty, error) {
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if context.Bool("tty") {
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console, err := p.NewConsole(rootuid)
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if err != nil {
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return nil, err
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}
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return &tty{
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console: console,
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}, nil
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}
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return &tty{}, nil
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}
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type tty struct {
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console libcontainer.Console
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state *term.State
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}
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func (t *tty) Close() error {
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if t.console != nil {
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t.console.Close()
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}
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if t.state != nil {
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term.RestoreTerminal(os.Stdin.Fd(), t.state)
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}
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return nil
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}
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func (t *tty) attach(process *libcontainer.Process) error {
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if t.console != nil {
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go io.Copy(t.console, os.Stdin)
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go io.Copy(os.Stdout, t.console)
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state, err := term.SetRawTerminal(os.Stdin.Fd())
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if err != nil {
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return err
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}
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t.state = state
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process.Stderr = nil
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process.Stdout = nil
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process.Stdin = nil
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}
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return nil
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}
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func (t *tty) resize() error {
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if t.console == nil {
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return nil
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}
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ws, err := term.GetWinsize(os.Stdin.Fd())
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if err != nil {
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return err
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}
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return term.SetWinsize(t.console.Fd(), ws)
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}
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