*
* Common run loop APIs for the Common UNIX Printing System (CUPS).
*
- * Copyright 2007 by Apple Inc.
+ * Copyright 2007-2008 by Apple Inc.
* Copyright 2006-2007 by Easy Software Products, all rights reserved.
*
* These coded instructions, statements, and computer programs are the
FD_SET(CUPS_SC_FD, &input);
FD_ZERO(&output);
- if (print_bytes || !use_bc)
+ if (print_bytes || (!use_bc && !side_cb))
FD_SET(device_fd, &output);
if (use_bc || side_cb)