1 /* isatty.c -- chek the terminal device.
3 * Copyright (c) 1995 Cygnus Support
5 * The authors hereby grant permission to use, copy, modify, distribute,
6 * and license this software and its documentation for any purpose, provided
7 * that existing copyright notices are retained in all copies and that this
8 * notice is included verbatim in any distributions. No written agreement,
9 * license, or royalty fee is required for any of the authorized uses.
10 * Modifications to this software may be copyrighted by their authors
11 * and need not follow the licensing terms described here, provided that
12 * the new terms are clearly indicated on the first page of each file where
18 * isatty -- returns 1 if connected to a terminal device,
19 * returns 0 if not. Since we're hooked up to a
20 * serial port, we'll say yes _AND return a 1.