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[pkg/term] use IoctlGetTermios/IoctlSetTermios from x/sys/unix

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Use IoctlGetTermios/IoctlSetTermios from golang.org/x/sys/unix instead
of manually reimplementing them.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
This commit is contained in:
Tobias Klauser 2017-07-17 10:36:52 +02:00
parent 6c9d715a8c
commit 6476504695
1 changed files with 10 additions and 11 deletions
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21
pkg/term/termios_linux.go
View file

@ -1,8 +1,6 @@
package term
import (
"unsafe"
"golang.org/x/sys/unix"
)
@ -18,20 +16,21 @@ type Termios unix.Termios
// 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 {
termios, err := unix.IoctlGetTermios(int(fd), getTermios)
if err != nil {
return nil, err
}
newState := oldState.termios
var oldState State
oldState.termios = Termios(*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
termios.Iflag &^= (unix.IGNBRK | unix.BRKINT | unix.PARMRK | unix.ISTRIP | unix.INLCR | unix.IGNCR | unix.ICRNL | unix.IXON)
termios.Oflag &^= unix.OPOST
termios.Lflag &^= (unix.ECHO | unix.ECHONL | unix.ICANON | unix.ISIG | unix.IEXTEN)
termios.Cflag &^= (unix.CSIZE | unix.PARENB)
termios.Cflag |= unix.CS8
if _, _, err := unix.Syscall(unix.SYS_IOCTL, fd, setTermios, uintptr(unsafe.Pointer(&newState))); err != 0 {
if err := unix.IoctlSetTermios(int(fd), setTermios, termios); err != nil {
return nil, err
}
return &oldState, nil