1 /****************************************************************************
2 * Copyright (c) 1998-2006,2007 Free Software Foundation, Inc. *
4 * Permission is hereby granted, free of charge, to any person obtaining a *
5 * copy of this software and associated documentation files (the *
6 * "Software"), to deal in the Software without restriction, including *
7 * without limitation the rights to use, copy, modify, merge, publish, *
8 * distribute, distribute with modifications, sublicense, and/or sell *
9 * copies of the Software, and to permit persons to whom the Software is *
10 * furnished to do so, subject to the following conditions: *
12 * The above copyright notice and this permission notice shall be included *
13 * in all copies or substantial portions of the Software. *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
16 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
18 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
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21 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
23 * Except as contained in this notice, the name(s) of the above copyright *
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27 ****************************************************************************/
29 /****************************************************************************
30 * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 *
31 * and: Eric S. Raymond <esr@snark.thyrsus.com> *
32 * and: Thomas E. Dickey 1996-on *
33 ****************************************************************************/
40 #include <curses.priv.h>
41 #include <term.h> /* cur_term, pad_char */
42 #include <termcap.h> /* ospeed */
45 * These systems use similar header files, which define B1200 as 1200, etc.,
46 * but can be overridden by defining USE_OLD_TTY so B1200 is 9, which makes all
47 * of the indices up to B115200 fit nicely in a 'short', allowing us to retain
48 * ospeed's type for compatibility.
50 #if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__)
75 #include <sys/ttydev.h>
78 #endif /* USE_OLD_TTY */
80 MODULE_ID("$Id: lib_baudrate.c,v 1.24 2007/03/10 19:25:57 tom Exp $")
86 * Returns the current terminal's baud rate.
91 int s; /* value for 'ospeed' is an index */
92 int sp; /* the actual speed */
95 static struct speed const speeds[] =
143 _nc_baudrate(int OSpeed)
146 static int last_OSpeed;
147 static int last_baudrate;
154 if (OSpeed == last_OSpeed) {
155 result = last_baudrate;
160 for (i = 0; i < SIZEOF(speeds); i++) {
161 if (speeds[i].s == OSpeed) {
162 result = speeds[i].sp;
168 if (OSpeed == last_OSpeed) {
169 last_OSpeed = OSpeed;
170 last_baudrate = result;
178 _nc_ospeed(int BaudRate)
184 for (i = 0; i < SIZEOF(speeds); i++) {
185 if (speeds[i].sp == BaudRate) {
186 result = speeds[i].s;
199 T((T_CALLED("baudrate()")));
202 * In debugging, allow the environment symbol to override when we're
203 * redirecting to a file, so we can construct repeatable test-cases
204 * that take into account costs that depend on baudrate.
207 if (SP && !isatty(fileno(SP->_ofp))
208 && getenv("BAUDRATE") != 0) {
210 if ((ret = _nc_getenv_num("BAUDRATE")) <= 0)
212 ospeed = _nc_ospeed(ret);
218 result = cfgetospeed(&cur_term->Nttyb);
219 ospeed = _nc_ospeed(result);
220 #else /* !USE_OLD_TTY */
222 ospeed = cfgetospeed(&cur_term->Nttyb);
224 ospeed = cur_term->Nttyb.sg_ospeed;
226 result = _nc_baudrate(ospeed);
229 cur_term->_baudrate = result;