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