1// Copyright 2013 The Go Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style
3// license that can be found in the LICENSE file.
4
5package readline
6
7import (
8	"syscall"
9	"unsafe"
10)
11
12// These constants are declared here, rather than importing
13// them from the syscall package as some syscall packages, even
14// on linux, for example gccgo, do not declare them.
15const ioctlReadTermios = 0x5401  // syscall.TCGETS
16const ioctlWriteTermios = 0x5402 // syscall.TCSETS
17
18func getTermios(fd int) (*Termios, error) {
19	termios := new(Termios)
20	_, _, err := syscall.Syscall6(syscall.SYS_IOCTL, uintptr(fd), ioctlReadTermios, uintptr(unsafe.Pointer(termios)), 0, 0, 0)
21	if err != 0 {
22		return nil, err
23	}
24	return termios, nil
25}
26
27func setTermios(fd int, termios *Termios) error {
28	_, _, err := syscall.Syscall6(syscall.SYS_IOCTL, uintptr(fd), ioctlWriteTermios, uintptr(unsafe.Pointer(termios)), 0, 0, 0)
29	if err != 0 {
30		return err
31	}
32	return nil
33}
34