/**************************************************************************** * Copyright (c) 1998,2000,2002 Free Software Foundation, Inc.              * *                                                                          * * Permission is hereby granted, free of charge, to any person obtaining a  * * copy of this software and associated documentation files (the            * * "Software"), to deal in the Software without restriction, including      * * without limitation the rights to use, copy, modify, merge, publish,      * * distribute, distribute with modifications, sublicense, and/or sell       * * copies of the Software, and to permit persons to whom the Software is    * * furnished to do so, subject to the following conditions:                 * *                                                                          * * The above copyright notice and this permission notice shall be included  * * in all copies or substantial portions of the Software.                   * *                                                                          * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  * * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               * * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   * * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   * * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    * * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    * * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               * *                                                                          * * Except as contained in this notice, the name(s) of the above copyright   * * holders shall not be used in advertising or otherwise to promote the     * * sale, use or other dealings in this Software without prior written       * * authorization.                                                           * ****************************************************************************//**************************************************************************** *  Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995               * *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         * ****************************************************************************//* *	lib_baudrate.c * */#include <curses.priv.h>#include <term.h>		/* cur_term, pad_char */#include <termcap.h>		/* ospeed *//* * These systems use similar header files, which define B1200 as 1200, etc., * but can be overridden by defining USE_OLD_TTY so B1200 is 9, which makes all * of the indices up to B115200 fit nicely in a 'short', allowing us to retain * ospeed's type for compatibility. */#if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__)#undef B0#undef B50#undef B75#undef B110#undef B134#undef B150#undef B200#undef B300#undef B600#undef B1200#undef B1800#undef B2400#undef B4800#undef B9600#undef B19200#undef EXTA#undef B38400#undef EXTB#undef B57600#undef B115200#undef B230400#undef B460800#undef B921600#define USE_OLD_TTY#include <sys/ttydev.h>#else#undef USE_OLD_TTY#endif /* USE_OLD_TTY */MODULE_ID("$Id: lib_baudrate.c,v 1.22 2002/01/19 23:07:53 Andrey.A.Chernov Exp $")/* *	int *	baudrate() * *	Returns the current terminal's baud rate. * */struct speed {    int s;			/* value for 'ospeed' is an index */    int sp;			/* the actual speed */};static struct speed const speeds[] ={    {B0, 0},    {B50, 50},    {B75, 75},    {B110, 110},    {B134, 134},    {B150, 150},    {B200, 200},    {B300, 300},    {B600, 600},    {B1200, 1200},    {B1800, 1800},    {B2400, 2400},    {B4800, 4800},    {B9600, 9600},#ifdef B19200    {B19200, 19200},#else#ifdef EXTA    {EXTA, 19200},#endif#endif#ifdef B38400    {B38400, 38400},#else#ifdef EXTB    {EXTB, 38400},#endif#endif#ifdef B57600    {B57600, 57600},#endif#ifdef B115200    {B115200, 115200},#endif#ifdef B230400    {B230400, 230400},#endif#ifdef B460800    {B460800, 460800},#endif#ifdef B921600    {B921600, 921600},#endif};NCURSES_EXPORT(int)_nc_baudrate(int OSpeed){    static int last_OSpeed;    static int last_baudrate;    int result;    unsigned i;    if (OSpeed == last_OSpeed) {	result = last_baudrate;    } else {	result = ERR;	if (OSpeed >= 0) {	    for (i = 0; i < SIZEOF(speeds); i++) {		if (speeds[i].s == OSpeed) {		    result = speeds[i].sp;		    break;		}	    }	}	last_baudrate = result;    }    return (result);}NCURSES_EXPORT(int)_nc_ospeed(int BaudRate){    int result = 1;    unsigned i;    if (BaudRate >= 0) {	for (i = 0; i < SIZEOF(speeds); i++) {	    if (speeds[i].sp == BaudRate) {		result = speeds[i].s;		break;	    }	}    }    return (result);}NCURSES_EXPORT(int)baudrate(void){    int result;    T((T_CALLED("baudrate()")));    /*     * In debugging, allow the environment symbol to override when we're     * redirecting to a file, so we can construct repeatable test-cases     * that take into account costs that depend on baudrate.     */#ifdef TRACE    if (SP && !isatty(fileno(SP->_ofp))	&& getenv("BAUDRATE") != 0) {	int ret;	if ((ret = _nc_getenv_num("BAUDRATE")) <= 0)	    ret = 9600;	ospeed = _nc_ospeed(ret);	returnCode(ret);    }#endif#ifdef USE_OLD_TTY    result = cfgetospeed(&cur_term->Nttyb);    ospeed = _nc_ospeed(result);#else /* !USE_OLD_TTY */#ifdef TERMIOS    ospeed = cfgetospeed(&cur_term->Nttyb);#else    ospeed = cur_term->Nttyb.sg_ospeed;#endif    result = _nc_baudrate(ospeed);#endif    if (cur_term != 0)	cur_term->_baudrate = result;    returnCode(result);}