func (d *directProcess) openIO() (*os.File, *os.File, *os.File, error) {
uid, gid, err := getRootIDs(d.specs)
if err != nil {
return nil, nil, nil, err
}
if d.spec.Terminal {
console, err := libcontainer.NewConsole(uid, gid)
if err != nil {
return nil, nil, nil, err
}
d.console = console
d.consolePath = console.Path()
stdin, err := os.OpenFile(d.stdio.Stdin, syscall.O_RDONLY, 0)
if err != nil {
return nil, nil, nil, err
}
go io.Copy(console, stdin)
stdout, err := os.OpenFile(d.stdio.Stdout, syscall.O_RDWR, 0)
if err != nil {
return nil, nil, nil, err
}
d.Add(1)
go func() {
io.Copy(stdout, console)
console.Close()
d.Done()
}()
d.io.stdin = stdin
d.io.stdout = stdout
d.io.stderr = stdout
return nil, nil, nil, nil
}
stdin, err := os.OpenFile(d.stdio.Stdin, syscall.O_RDONLY|syscall.O_NONBLOCK, 0)
if err != nil {
return nil, nil, nil, err
}
stdout, err := os.OpenFile(d.stdio.Stdout, syscall.O_RDWR, 0)
if err != nil {
return nil, nil, nil, err
}
stderr, err := os.OpenFile(d.stdio.Stderr, syscall.O_RDWR, 0)
if err != nil {
return nil, nil, nil, err
}
d.io.stdin = stdin
d.io.stdout = stdout
d.io.stderr = stderr
return stdin, stdout, stderr, nil
}
func attachTty(consolePath *string) error {
console, err := libcontainer.NewConsole(os.Getuid(), os.Getgid())
if err != nil {
return err
}
*consolePath = console.Path()
stdin = console
go func() {
io.Copy(os.Stdout, console)
console.Close()
}()
s, err := term.SetRawTerminal(os.Stdin.Fd())
if err != nil {
return err
}
state = s
return nil
}