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- /****************************************************************************
- * 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);
- }
-