| package term |
| |
| import ( |
| "syscall" |
| "unsafe" |
| ) |
| |
| const ( |
| getTermios = syscall.TIOCGETA |
| setTermios = syscall.TIOCSETA |
| ) |
| |
| // 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 int) (*State, error) { |
| var oldState State |
| if _, _, err := syscall.Syscall6(syscall.SYS_IOCTL, uintptr(fd), uintptr(getTermios), uintptr(unsafe.Pointer(&oldState.termios)), 0, 0, 0); err != 0 { |
| return nil, err |
| } |
| |
| newState := oldState.termios |
| newState.Iflag &^= ISTRIP | INLCR | IGNCR | IXON | IXOFF |
| newState.Iflag |= ICRNL |
| newState.Oflag |= ONLCR |
| newState.Lflag &^= ECHO | ICANON | ISIG |
| if _, _, err := syscall.Syscall6(syscall.SYS_IOCTL, uintptr(fd), uintptr(setTermios), uintptr(unsafe.Pointer(&newState)), 0, 0, 0); err != 0 { |
| return nil, err |
| } |
| |
| return &oldState, nil |
| } |