/**************************************************************************** * Copyright (c) 1998-2001,2002 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>                         * *     and: Thomas E. Dickey 1998 on                                        * ****************************************************************************//* *	raw.c * *	Routines: *		raw() *		cbreak() *		noraw() *		nocbreak() *		qiflush() *		noqiflush() *		intrflush() * */#include <curses.priv.h>#include <term.h>		/* cur_term */MODULE_ID("$Id: lib_raw.c,v 1.13 2002/07/06 22:00:45 tom Exp $")#if SVR4_TERMIO && !defined(_POSIX_SOURCE)#define _POSIX_SOURCE#endif#if HAVE_SYS_TERMIO_H#include <sys/termio.h>		/* needed for ISC */#endif#ifdef __EMX__#include <io.h>#define _nc_setmode(mode) setmode(SP->_ifd, mode)#else#define _nc_setmode(mode)	/* nothing */#endif#define COOKED_INPUT	(IXON|BRKINT|PARMRK)#ifdef TRACE#define BEFORE(N)	if (_nc_tracing&TRACE_BITS) _tracef("%s before bits: %s", N, _nc_tracebits())#define AFTER(N)	if (_nc_tracing&TRACE_BITS) _tracef("%s after bits: %s", N, _nc_tracebits())#else#define BEFORE(s)#define AFTER(s)#endif /* TRACE */NCURSES_EXPORT(int)raw(void){    int result = ERR;    T((T_CALLED("raw()")));    if (SP != 0 && cur_term != 0) {	TTY buf;	BEFORE("raw");	_nc_setmode(O_BINARY);	buf = cur_term->Nttyb;#ifdef TERMIOS	buf.c_lflag &= ~(ICANON | ISIG | IEXTEN);	buf.c_iflag &= ~(COOKED_INPUT);	buf.c_cc[VMIN] = 1;	buf.c_cc[VTIME] = 0;#else	buf.sg_flags |= RAW;#endif	if ((result = _nc_set_tty_mode(&buf)) == OK) {	    SP->_raw = TRUE;	    SP->_cbreak = 1;	    cur_term->Nttyb = buf;	}	AFTER("raw");    }    returnCode(result);}NCURSES_EXPORT(int)cbreak(void){    int result = ERR;    T((T_CALLED("cbreak()")));    if (SP != 0 && cur_term != 0) {	TTY buf;	BEFORE("cbreak");	_nc_setmode(O_BINARY);	buf = cur_term->Nttyb;#ifdef TERMIOS	buf.c_lflag &= ~ICANON;	buf.c_iflag &= ~ICRNL;	buf.c_lflag |= ISIG;	buf.c_cc[VMIN] = 1;	buf.c_cc[VTIME] = 0;#else	buf.sg_flags |= CBREAK;#endif	if ((result = _nc_set_tty_mode(&buf)) == OK) {	    SP->_cbreak = 1;	    cur_term->Nttyb = buf;	}	AFTER("cbreak");    }    returnCode(result);}/* * Note: * this implementation may be wrong.  See the comment under intrflush(). */NCURSES_EXPORT(void)qiflush(void){    int result = ERR;    T((T_CALLED("qiflush()")));    if (cur_term != 0) {	TTY buf;	BEFORE("qiflush");	buf = cur_term->Nttyb;#ifdef TERMIOS	buf.c_lflag &= ~(NOFLSH);	result = _nc_set_tty_mode(&buf);#else	/* FIXME */#endif	if (result == OK)	    cur_term->Nttyb = buf;	AFTER("qiflush");    }    returnVoid;}NCURSES_EXPORT(int)noraw(void){    int result = ERR;    T((T_CALLED("noraw()")));    if (SP != 0 && cur_term != 0) {	TTY buf;	BEFORE("noraw");	_nc_setmode(O_TEXT);	buf = cur_term->Nttyb;#ifdef TERMIOS	buf.c_lflag |= ISIG | ICANON |	    (cur_term->Ottyb.c_lflag & IEXTEN);	buf.c_iflag |= COOKED_INPUT;#else	buf.sg_flags &= ~(RAW | CBREAK);#endif	if ((result = _nc_set_tty_mode(&buf)) == OK) {	    SP->_raw = FALSE;	    SP->_cbreak = 0;	    cur_term->Nttyb = buf;	}	AFTER("noraw");    }    returnCode(result);}NCURSES_EXPORT(int)nocbreak(void){    int result = ERR;    T((T_CALLED("nocbreak()")));    if (SP != 0 && cur_term != 0) {	TTY buf;	BEFORE("nocbreak");	_nc_setmode(O_TEXT);	buf = cur_term->Nttyb;#ifdef TERMIOS	buf.c_lflag |= ICANON;	buf.c_iflag |= ICRNL;#else	buf.sg_flags &= ~CBREAK;#endif	if ((result = _nc_set_tty_mode(&buf)) == OK) {	    SP->_cbreak = 0;	    cur_term->Nttyb = buf;	}	AFTER("nocbreak");    }    returnCode(result);}/* * Note: * this implementation may be wrong.  See the comment under intrflush(). */NCURSES_EXPORT(void)noqiflush(void){    int result = ERR;    T((T_CALLED("noqiflush()")));    if (cur_term != 0) {	TTY buf;	BEFORE("noqiflush");	buf = cur_term->Nttyb;#ifdef TERMIOS	buf.c_lflag |= NOFLSH;	result = _nc_set_tty_mode(&buf);#else	/* FIXME */#endif	if (result == OK) {	    cur_term->Nttyb = buf;	}	AFTER("noqiflush");    }    returnVoid;}/* * This call does the same thing as the qiflush()/noqiflush() pair.  We know * for certain that SVr3 intrflush() tweaks the NOFLSH bit; on the other hand, * the match (in the SVr4 man pages) between the language describing NOFLSH in * termio(7) and the language describing qiflush()/noqiflush() in * curs_inopts(3x) is too exact to be coincidence. */NCURSES_EXPORT(int)intrflush(WINDOW *win GCC_UNUSED, bool flag){    int result = ERR;    T((T_CALLED("intrflush(%d)"), flag));    if (cur_term != 0) {	TTY buf;	BEFORE("intrflush");	buf = cur_term->Nttyb;#ifdef TERMIOS	if (flag)	    buf.c_lflag &= ~(NOFLSH);	else	    buf.c_lflag |= (NOFLSH);	result = _nc_set_tty_mode(&buf);#else	/* FIXME */#endif	if (result == OK) {	    cur_term->Nttyb = buf;	}	AFTER("intrflush");    }    returnCode(result);}