+
+ ULONG status = 0;
+ DWORD len;
+ DeviceIoControl(device_handle, TAP_IOCTL_SET_MEDIA_STATUS, &status, sizeof(status), &status, sizeof(status), &len, NULL);
+
+ /* Note that we don't try to cancel ongoing I/O here - we just stop listening.
+ This is because some TAP-Win32 drivers don't seem to handle cancellation very well,
+ especially when combined with other events such as the computer going to sleep - cases
+ were observed where the GetOverlappedResult() would just block indefinitely and never
+ return in that case. */
+}
+
+static void close_device(void) {