mirror of
https://github.com/k3s-io/k3s.git
synced 2024-06-07 19:41:36 +00:00
92 lines
2.2 KiB
Go
92 lines
2.2 KiB
Go
// +build darwin freebsd linux openbsd solaris
|
|
|
|
/*
|
|
Copyright The containerd Authors.
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
package console
|
|
|
|
import (
|
|
"golang.org/x/sys/unix"
|
|
)
|
|
|
|
func tcget(fd uintptr, p *unix.Termios) error {
|
|
termios, err := unix.IoctlGetTermios(int(fd), cmdTcGet)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
*p = *termios
|
|
return nil
|
|
}
|
|
|
|
func tcset(fd uintptr, p *unix.Termios) error {
|
|
return unix.IoctlSetTermios(int(fd), cmdTcSet, p)
|
|
}
|
|
|
|
func tcgwinsz(fd uintptr) (WinSize, error) {
|
|
var ws WinSize
|
|
|
|
uws, err := unix.IoctlGetWinsize(int(fd), unix.TIOCGWINSZ)
|
|
if err != nil {
|
|
return ws, err
|
|
}
|
|
|
|
// Translate from unix.Winsize to console.WinSize
|
|
ws.Height = uws.Row
|
|
ws.Width = uws.Col
|
|
ws.x = uws.Xpixel
|
|
ws.y = uws.Ypixel
|
|
return ws, nil
|
|
}
|
|
|
|
func tcswinsz(fd uintptr, ws WinSize) error {
|
|
// Translate from console.WinSize to unix.Winsize
|
|
|
|
var uws unix.Winsize
|
|
uws.Row = ws.Height
|
|
uws.Col = ws.Width
|
|
uws.Xpixel = ws.x
|
|
uws.Ypixel = ws.y
|
|
|
|
return unix.IoctlSetWinsize(int(fd), unix.TIOCSWINSZ, &uws)
|
|
}
|
|
|
|
func setONLCR(fd uintptr, enable bool) error {
|
|
var termios unix.Termios
|
|
if err := tcget(fd, &termios); err != nil {
|
|
return err
|
|
}
|
|
if enable {
|
|
// Set +onlcr so we can act like a real terminal
|
|
termios.Oflag |= unix.ONLCR
|
|
} else {
|
|
// Set -onlcr so we don't have to deal with \r.
|
|
termios.Oflag &^= unix.ONLCR
|
|
}
|
|
return tcset(fd, &termios)
|
|
}
|
|
|
|
func cfmakeraw(t unix.Termios) unix.Termios {
|
|
t.Iflag &^= (unix.IGNBRK | unix.BRKINT | unix.PARMRK | unix.ISTRIP | unix.INLCR | unix.IGNCR | unix.ICRNL | unix.IXON)
|
|
t.Oflag &^= unix.OPOST
|
|
t.Lflag &^= (unix.ECHO | unix.ECHONL | unix.ICANON | unix.ISIG | unix.IEXTEN)
|
|
t.Cflag &^= (unix.CSIZE | unix.PARENB)
|
|
t.Cflag &^= unix.CS8
|
|
t.Cc[unix.VMIN] = 1
|
|
t.Cc[unix.VTIME] = 0
|
|
|
|
return t
|
|
}
|