Function restoreTerminal

cli/command/container/hijack.go:211–230

(streams command.Streams, in io.Closer)

}

func restoreTerminal(streams command.Streams, in io.Closer) error {
	streams.In().RestoreTerminal()
	streams.Out().RestoreTerminal()
	// WARNING: DO NOT REMOVE THE OS CHECKS !!!
	// For some reason this Close call blocks on darwin..
	// As the client exits right after, simply discard the close
	// until we find a better solution.
	//
	// This can also cause the client on Windows to get stuck in Win32 CloseHandle()
	// in some cases. See https://github.com/docker/docker/issues/28267#issuecomment-288237442
	// Tracked internally at Microsoft by VSO #11352156. In the
	// Windows case, you hit this if you are using the native/v2 console,
	// not the "legacy" console, and you start the client in a new window. eg
	// `start docker run --rm -it microsoft/nanoserver cmd /s /c echo foobar`
	// will hang. Remove start, and it won't repro.
	if in != nil && runtime.GOOS != "darwin" && runtime.GOOS != "windows" {
		return in.Close()
	}
	return nil
}