1// +build darwin dragonfly freebsd openbsd netbsd 2 3package term // import "github.com/moby/term" 4 5import ( 6 "unsafe" 7 8 "golang.org/x/sys/unix" 9) 10 11const ( 12 getTermios = unix.TIOCGETA 13 setTermios = unix.TIOCSETA 14) 15 16// Termios is the Unix API for terminal I/O. 17type Termios unix.Termios 18 19// MakeRaw put the terminal connected to the given file descriptor into raw 20// mode and returns the previous state of the terminal so that it can be 21// restored. 22func MakeRaw(fd uintptr) (*State, error) { 23 var oldState State 24 if _, _, err := unix.Syscall(unix.SYS_IOCTL, fd, getTermios, uintptr(unsafe.Pointer(&oldState.termios))); err != 0 { 25 return nil, err 26 } 27 28 newState := oldState.termios 29 newState.Iflag &^= (unix.IGNBRK | unix.BRKINT | unix.PARMRK | unix.ISTRIP | unix.INLCR | unix.IGNCR | unix.ICRNL | unix.IXON) 30 newState.Oflag &^= unix.OPOST 31 newState.Lflag &^= (unix.ECHO | unix.ECHONL | unix.ICANON | unix.ISIG | unix.IEXTEN) 32 newState.Cflag &^= (unix.CSIZE | unix.PARENB) 33 newState.Cflag |= unix.CS8 34 newState.Cc[unix.VMIN] = 1 35 newState.Cc[unix.VTIME] = 0 36 37 if _, _, err := unix.Syscall(unix.SYS_IOCTL, fd, setTermios, uintptr(unsafe.Pointer(&newState))); err != 0 { 38 return nil, err 39 } 40 41 return &oldState, nil 42} 43