| package term // import "github.com/docker/docker/pkg/term" |
| |
| import ( |
| "golang.org/x/sys/unix" |
| ) |
| |
| const ( |
| getTermios = unix.TCGETS |
| setTermios = unix.TCSETS |
| ) |
| |
| // Termios is the Unix API for terminal I/O. |
| type Termios unix.Termios |
| |
| // MakeRaw put the terminal connected to the given file descriptor into raw |
| // mode and returns the previous state of the terminal so that it can be |
| // restored. |
| func MakeRaw(fd uintptr) (*State, error) { |
| termios, err := unix.IoctlGetTermios(int(fd), getTermios) |
| if err != nil { |
| return nil, err |
| } |
| |
| var oldState State |
| oldState.termios = Termios(*termios) |
| |
| termios.Iflag &^= (unix.IGNBRK | unix.BRKINT | unix.PARMRK | unix.ISTRIP | unix.INLCR | unix.IGNCR | unix.ICRNL | unix.IXON) |
| termios.Oflag &^= unix.OPOST |
| termios.Lflag &^= (unix.ECHO | unix.ECHONL | unix.ICANON | unix.ISIG | unix.IEXTEN) |
| termios.Cflag &^= (unix.CSIZE | unix.PARENB) |
| termios.Cflag |= unix.CS8 |
| termios.Cc[unix.VMIN] = 1 |
| termios.Cc[unix.VTIME] = 0 |
| |
| if err := unix.IoctlSetTermios(int(fd), setTermios, termios); err != nil { |
| return nil, err |
| } |
| return &oldState, nil |
| } |