Files
runc/vendor/github.com/containerd/console/tc_unix.go
Michael Crosby 9ba16b6d5a Update console and golang/sys deps
This bumps the console and golang/sys deps for runc.

The major change is that the console package does not clear ONLCR within
the package and leaves it up to the client to handle this if they
please.

Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
2017-09-25 13:23:50 -04:00

76 lines
1.6 KiB
Go

// +build darwin freebsd linux solaris
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
}