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path: root/vendor/github.com/containerd/console/tc_unix.go
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Diffstat (limited to 'vendor/github.com/containerd/console/tc_unix.go')
-rw-r--r--vendor/github.com/containerd/console/tc_unix.go75
1 files changed, 75 insertions, 0 deletions
diff --git a/vendor/github.com/containerd/console/tc_unix.go b/vendor/github.com/containerd/console/tc_unix.go
new file mode 100644
index 000000000..df7dcb933
--- /dev/null
+++ b/vendor/github.com/containerd/console/tc_unix.go
@@ -0,0 +1,75 @@
+// +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
+}