| // +build darwin freebsd openbsd |
| |
| package term // import "github.com/docker/docker/pkg/term" |
| |
| import ( |
| "unsafe" |
| |
| "golang.org/x/sys/unix" |
| ) |
| |
| const ( |
| getTermios = unix.TIOCGETA |
| setTermios = unix.TIOCSETA |
| ) |
| |
| // 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) { |
| var oldState State |
| if _, _, err := unix.Syscall(unix.SYS_IOCTL, fd, getTermios, uintptr(unsafe.Pointer(&oldState.termios))); err != 0 { |
| return nil, err |
| } |
| |
| newState := oldState.termios |
| newState.Iflag &^= (unix.IGNBRK | unix.BRKINT | unix.PARMRK | unix.ISTRIP | unix.INLCR | unix.IGNCR | unix.ICRNL | unix.IXON) |
| newState.Oflag &^= unix.OPOST |
| newState.Lflag &^= (unix.ECHO | unix.ECHONL | unix.ICANON | unix.ISIG | unix.IEXTEN) |
| newState.Cflag &^= (unix.CSIZE | unix.PARENB) |
| newState.Cflag |= unix.CS8 |
| newState.Cc[unix.VMIN] = 1 |
| newState.Cc[unix.VTIME] = 0 |
| |
| if _, _, err := unix.Syscall(unix.SYS_IOCTL, fd, setTermios, uintptr(unsafe.Pointer(&newState))); err != 0 { |
| return nil, err |
| } |
| |
| return &oldState, nil |
| } |