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@@ -0,0 +1,42 @@
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+// +build darwin freebsd openbsd
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+
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+package term
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+
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+import (
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+ "unsafe"
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+
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+ "golang.org/x/sys/unix"
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+)
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+
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+const (
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+ getTermios = unix.TIOCGETA
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+ setTermios = unix.TIOCSETA
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+)
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+
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+// Termios is the Unix API for terminal I/O.
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+type Termios unix.Termios
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+
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+// MakeRaw put the terminal connected to the given file descriptor into raw
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+// mode and returns the previous state of the terminal so that it can be
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+// restored.
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+func MakeRaw(fd uintptr) (*State, error) {
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+ var oldState State
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+ if _, _, err := unix.Syscall(unix.SYS_IOCTL, fd, getTermios, uintptr(unsafe.Pointer(&oldState.termios))); err != 0 {
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+ return nil, err
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+ }
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+
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+ newState := oldState.termios
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+ newState.Iflag &^= (unix.IGNBRK | unix.BRKINT | unix.PARMRK | unix.ISTRIP | unix.INLCR | unix.IGNCR | unix.ICRNL | unix.IXON)
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+ newState.Oflag &^= unix.OPOST
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+ newState.Lflag &^= (unix.ECHO | unix.ECHONL | unix.ICANON | unix.ISIG | unix.IEXTEN)
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+ newState.Cflag &^= (unix.CSIZE | unix.PARENB)
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+ newState.Cflag |= unix.CS8
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+ newState.Cc[unix.VMIN] = 1
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+ newState.Cc[unix.VTIME] = 0
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+
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+ if _, _, err := unix.Syscall(unix.SYS_IOCTL, fd, setTermios, uintptr(unsafe.Pointer(&newState))); err != 0 {
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+ return nil, err
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+ }
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+
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+ return &oldState, nil
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+}
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