open-nomad/vendor/github.com/containerd/console/tc_unix.go
Nick Ethier 66ff12e5f7 Update runc/libcontainer and friends (#4655)
* vendor: bump libcontainer and docker to remove Sirupsen imports

* vendor: fix bad vendoring of archive package

* vendor: fix api changes to cgroups in executor

* vendor: fix docker api changes

* vendor: update github.com/Azure/go-ansiterm to use non capitalized logrus import
2018-10-16 16:53:30 -07:00

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
}