682 lines
16 KiB
C
682 lines
16 KiB
C
/* $NetBSD: tty.c,v 1.42 2010/02/03 15:34:40 roy Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 1992, 1993, 1994
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
#ifndef lint
|
|
#if 0
|
|
static char sccsid[] = "@(#)tty.c 8.6 (Berkeley) 1/10/95";
|
|
#else
|
|
__RCSID("$NetBSD: tty.c,v 1.42 2010/02/03 15:34:40 roy Exp $");
|
|
#endif
|
|
#endif /* not lint */
|
|
|
|
#include <sys/types.h>
|
|
|
|
#include <stdlib.h>
|
|
#include <termios.h>
|
|
#include <unistd.h>
|
|
#include <sys/fcntl.h>
|
|
#include <sys/ioctl.h>
|
|
|
|
#include "curses.h"
|
|
#include "curses_private.h"
|
|
|
|
/*
|
|
* In general, curses should leave tty hardware settings alone (speed, parity,
|
|
* word size). This is most easily done in BSD by using TCSASOFT on all
|
|
* tcsetattr calls. On other systems, it would be better to get and restore
|
|
* those attributes at each change, or at least when stopped and restarted.
|
|
* See also the comments in getterm().
|
|
*/
|
|
#ifdef TCSASOFT
|
|
int __tcaction = 1; /* Ignore hardware settings. */
|
|
#else
|
|
int __tcaction = 0;
|
|
#endif
|
|
|
|
#ifndef OXTABS
|
|
#ifdef XTABS /* SMI uses XTABS. */
|
|
#define OXTABS XTABS
|
|
#else
|
|
#define OXTABS 0
|
|
#endif
|
|
#endif
|
|
|
|
/*
|
|
* baudrate --
|
|
* Return the current baudrate
|
|
*/
|
|
int
|
|
baudrate(void)
|
|
{
|
|
if (_cursesi_screen->notty == TRUE)
|
|
return 0;
|
|
|
|
return cfgetospeed(&_cursesi_screen->baset);
|
|
}
|
|
|
|
/*
|
|
* gettmode --
|
|
* Do terminal type initialization.
|
|
*/
|
|
int
|
|
gettmode(void)
|
|
{
|
|
if (_cursesi_gettmode(_cursesi_screen) == ERR)
|
|
return ERR;
|
|
|
|
__GT = _cursesi_screen->GT;
|
|
__NONL = _cursesi_screen->NONL;
|
|
return OK;
|
|
}
|
|
|
|
/*
|
|
* _cursesi_gettmode --
|
|
* Do the terminal type initialisation for the tty attached to the
|
|
* given screen.
|
|
*/
|
|
int
|
|
_cursesi_gettmode(SCREEN *screen)
|
|
{
|
|
screen->useraw = 0;
|
|
|
|
if (tcgetattr(fileno(screen->infd), &screen->orig_termios)) {
|
|
/* if the input fd is not a tty try the output */
|
|
if (tcgetattr(fileno(screen->infd), &screen->orig_termios)) {
|
|
/* not a tty ... we will disable tty related stuff */
|
|
screen->notty = TRUE;
|
|
__GT = 0;
|
|
__NONL = 0;
|
|
return (OK);
|
|
}
|
|
}
|
|
|
|
screen->baset = screen->orig_termios;
|
|
screen->baset.c_oflag &= ~OXTABS;
|
|
|
|
screen->GT = 0; /* historical. was used before we wired OXTABS off */
|
|
screen->NONL = (screen->baset.c_oflag & ONLCR) == 0;
|
|
|
|
/*
|
|
* XXX
|
|
* System V and SMI systems overload VMIN and VTIME, such that
|
|
* VMIN is the same as the VEOF element, and VTIME is the same
|
|
* as the VEOL element. This means that, if VEOF was ^D, the
|
|
* default VMIN is 4. Majorly stupid.
|
|
*/
|
|
screen->cbreakt = screen->baset;
|
|
screen->cbreakt.c_lflag &= ~(ECHO | ECHONL | ICANON);
|
|
screen->cbreakt.c_cc[VMIN] = 1;
|
|
screen->cbreakt.c_cc[VTIME] = 0;
|
|
|
|
screen->rawt = screen->cbreakt;
|
|
screen->rawt.c_iflag &= ~(IGNBRK | BRKINT | PARMRK | INLCR | IGNCR |
|
|
ICRNL | IXON);
|
|
screen->rawt.c_oflag &= ~OPOST;
|
|
screen->rawt.c_lflag &= ~(ISIG | IEXTEN);
|
|
|
|
/*
|
|
* In general, curses should leave hardware-related settings alone.
|
|
* This includes parity and word size. Older versions set the tty
|
|
* to 8 bits, no parity in raw(), but this is considered to be an
|
|
* artifact of the old tty interface. If it's desired to change
|
|
* parity and word size, the TCSASOFT bit has to be removed from the
|
|
* calls that switch to/from "raw" mode.
|
|
*/
|
|
if (!__tcaction) {
|
|
screen->rawt.c_iflag &= ~ISTRIP;
|
|
screen->rawt.c_cflag &= ~(CSIZE | PARENB);
|
|
screen->rawt.c_cflag |= CS8;
|
|
}
|
|
|
|
screen->curt = &screen->baset;
|
|
return (tcsetattr(fileno(screen->infd), __tcaction ?
|
|
TCSASOFT | TCSADRAIN : TCSADRAIN, screen->curt) ? ERR : OK);
|
|
}
|
|
|
|
/*
|
|
* raw --
|
|
* Put the terminal into raw mode
|
|
*/
|
|
int
|
|
raw(void)
|
|
{
|
|
#ifdef DEBUG
|
|
__CTRACE(__CTRACE_MISC, "raw()\n");
|
|
#endif
|
|
/* Check if we need to restart ... */
|
|
if (_cursesi_screen->endwin)
|
|
__restartwin();
|
|
|
|
_cursesi_screen->useraw = __pfast = __rawmode = 1;
|
|
_cursesi_screen->curt = &_cursesi_screen->rawt;
|
|
if (_cursesi_screen->notty == TRUE)
|
|
return OK;
|
|
return (tcsetattr(fileno(_cursesi_screen->infd), __tcaction ?
|
|
TCSASOFT | TCSADRAIN : TCSADRAIN,
|
|
_cursesi_screen->curt) ? ERR : OK);
|
|
}
|
|
|
|
/*
|
|
* noraw --
|
|
* Put the terminal into cooked mode
|
|
*/
|
|
int
|
|
noraw(void)
|
|
{
|
|
#ifdef DEBUG
|
|
__CTRACE(__CTRACE_MISC, "noraw()\n");
|
|
#endif
|
|
/* Check if we need to restart ... */
|
|
if (_cursesi_screen->endwin)
|
|
__restartwin();
|
|
|
|
_cursesi_screen->useraw = __pfast = __rawmode = 0;
|
|
if (_cursesi_screen->notty == TRUE)
|
|
return OK;
|
|
_cursesi_screen->curt = &_cursesi_screen->baset;
|
|
return (tcsetattr(fileno(_cursesi_screen->infd), __tcaction ?
|
|
TCSASOFT | TCSADRAIN : TCSADRAIN,
|
|
_cursesi_screen->curt) ? ERR : OK);
|
|
}
|
|
|
|
/*
|
|
* cbreak --
|
|
* Enable cbreak mode
|
|
*/
|
|
int
|
|
cbreak(void)
|
|
{
|
|
#ifdef DEBUG
|
|
__CTRACE(__CTRACE_MISC, "cbreak()\n");
|
|
#endif
|
|
/* Check if we need to restart ... */
|
|
if (_cursesi_screen->endwin)
|
|
__restartwin();
|
|
|
|
__rawmode = 1;
|
|
if (_cursesi_screen->notty == TRUE)
|
|
return OK;
|
|
_cursesi_screen->curt = _cursesi_screen->useraw ?
|
|
&_cursesi_screen->rawt : &_cursesi_screen->cbreakt;
|
|
return (tcsetattr(fileno(_cursesi_screen->infd), __tcaction ?
|
|
TCSASOFT | TCSADRAIN : TCSADRAIN,
|
|
_cursesi_screen->curt) ? ERR : OK);
|
|
}
|
|
|
|
/*
|
|
* nocbreak --
|
|
* Disable cbreak mode
|
|
*/
|
|
int
|
|
nocbreak(void)
|
|
{
|
|
#ifdef DEBUG
|
|
__CTRACE(__CTRACE_MISC, "nocbreak()\n");
|
|
#endif
|
|
/* Check if we need to restart ... */
|
|
if (_cursesi_screen->endwin)
|
|
__restartwin();
|
|
|
|
__rawmode = 0;
|
|
if (_cursesi_screen->notty == TRUE)
|
|
return OK;
|
|
/* if we were in halfdelay mode then nuke the timeout */
|
|
if ((_cursesi_screen->half_delay == TRUE) &&
|
|
(__notimeout() == ERR))
|
|
return ERR;
|
|
|
|
_cursesi_screen->half_delay = FALSE;
|
|
_cursesi_screen->curt = _cursesi_screen->useraw ?
|
|
&_cursesi_screen->rawt : &_cursesi_screen->baset;
|
|
return (tcsetattr(fileno(_cursesi_screen->infd), __tcaction ?
|
|
TCSASOFT | TCSADRAIN : TCSADRAIN,
|
|
_cursesi_screen->curt) ? ERR : OK);
|
|
}
|
|
|
|
/*
|
|
* halfdelay --
|
|
* Put the terminal into cbreak mode with the specified timeout.
|
|
*
|
|
*/
|
|
int
|
|
halfdelay(int duration)
|
|
{
|
|
if ((duration < 1) || (duration > 255))
|
|
return ERR;
|
|
|
|
if (cbreak() == ERR)
|
|
return ERR;
|
|
|
|
if (__timeout(duration) == ERR)
|
|
return ERR;
|
|
|
|
_cursesi_screen->half_delay = TRUE;
|
|
return OK;
|
|
}
|
|
|
|
int
|
|
__delay(void)
|
|
{
|
|
#ifdef DEBUG
|
|
__CTRACE(__CTRACE_MISC, "__delay()\n");
|
|
#endif
|
|
/* Check if we need to restart ... */
|
|
if (_cursesi_screen->endwin)
|
|
__restartwin();
|
|
|
|
if (_cursesi_screen->notty == TRUE)
|
|
return OK;
|
|
_cursesi_screen->rawt.c_cc[VMIN] = 1;
|
|
_cursesi_screen->rawt.c_cc[VTIME] = 0;
|
|
_cursesi_screen->cbreakt.c_cc[VMIN] = 1;
|
|
_cursesi_screen->cbreakt.c_cc[VTIME] = 0;
|
|
_cursesi_screen->baset.c_cc[VMIN] = 1;
|
|
_cursesi_screen->baset.c_cc[VTIME] = 0;
|
|
|
|
if (tcsetattr(fileno(_cursesi_screen->infd), __tcaction ?
|
|
TCSASOFT : TCSANOW, _cursesi_screen->curt)) {
|
|
__restore_termios();
|
|
return ERR;
|
|
}
|
|
|
|
return OK;
|
|
}
|
|
|
|
int
|
|
__nodelay(void)
|
|
{
|
|
#ifdef DEBUG
|
|
__CTRACE(__CTRACE_MISC, "__nodelay()\n");
|
|
#endif
|
|
/* Check if we need to restart ... */
|
|
if (_cursesi_screen->endwin)
|
|
__restartwin();
|
|
|
|
if (_cursesi_screen->notty == TRUE)
|
|
return OK;
|
|
_cursesi_screen->rawt.c_cc[VMIN] = 0;
|
|
_cursesi_screen->rawt.c_cc[VTIME] = 0;
|
|
_cursesi_screen->cbreakt.c_cc[VMIN] = 0;
|
|
_cursesi_screen->cbreakt.c_cc[VTIME] = 0;
|
|
_cursesi_screen->baset.c_cc[VMIN] = 0;
|
|
_cursesi_screen->baset.c_cc[VTIME] = 0;
|
|
|
|
if (tcsetattr(fileno(_cursesi_screen->infd), __tcaction ?
|
|
TCSASOFT : TCSANOW, _cursesi_screen->curt)) {
|
|
__restore_termios();
|
|
return ERR;
|
|
}
|
|
|
|
return OK;
|
|
}
|
|
|
|
void
|
|
__save_termios(void)
|
|
{
|
|
/* Check if we need to restart ... */
|
|
if (_cursesi_screen->endwin)
|
|
__restartwin();
|
|
|
|
if (_cursesi_screen->notty == TRUE)
|
|
return;
|
|
_cursesi_screen->ovmin = _cursesi_screen->cbreakt.c_cc[VMIN];
|
|
_cursesi_screen->ovtime = _cursesi_screen->cbreakt.c_cc[VTIME];
|
|
}
|
|
|
|
void
|
|
__restore_termios(void)
|
|
{
|
|
/* Check if we need to restart ... */
|
|
if (_cursesi_screen->endwin)
|
|
__restartwin();
|
|
|
|
if (_cursesi_screen->notty == TRUE)
|
|
return;
|
|
_cursesi_screen->rawt.c_cc[VMIN] = _cursesi_screen->ovmin;
|
|
_cursesi_screen->rawt.c_cc[VTIME] = _cursesi_screen->ovtime;
|
|
_cursesi_screen->cbreakt.c_cc[VMIN] = _cursesi_screen->ovmin;
|
|
_cursesi_screen->cbreakt.c_cc[VTIME] = _cursesi_screen->ovtime;
|
|
_cursesi_screen->baset.c_cc[VMIN] = _cursesi_screen->ovmin;
|
|
_cursesi_screen->baset.c_cc[VTIME] = _cursesi_screen->ovtime;
|
|
}
|
|
|
|
int
|
|
__timeout(int delay)
|
|
{
|
|
#ifdef DEBUG
|
|
__CTRACE(__CTRACE_MISC, "__timeout()\n");
|
|
#endif
|
|
/* Check if we need to restart ... */
|
|
if (_cursesi_screen->endwin)
|
|
__restartwin();
|
|
|
|
if (_cursesi_screen->notty == TRUE)
|
|
return OK;
|
|
_cursesi_screen->ovmin = _cursesi_screen->cbreakt.c_cc[VMIN];
|
|
_cursesi_screen->ovtime = _cursesi_screen->cbreakt.c_cc[VTIME];
|
|
_cursesi_screen->rawt.c_cc[VMIN] = 0;
|
|
_cursesi_screen->rawt.c_cc[VTIME] = delay;
|
|
_cursesi_screen->cbreakt.c_cc[VMIN] = 0;
|
|
_cursesi_screen->cbreakt.c_cc[VTIME] = delay;
|
|
_cursesi_screen->baset.c_cc[VMIN] = 0;
|
|
_cursesi_screen->baset.c_cc[VTIME] = delay;
|
|
|
|
if (tcsetattr(fileno(_cursesi_screen->infd),
|
|
__tcaction ? TCSASOFT | TCSANOW : TCSANOW,
|
|
_cursesi_screen->curt)) {
|
|
__restore_termios();
|
|
return ERR;
|
|
}
|
|
|
|
return OK;
|
|
}
|
|
|
|
int
|
|
__notimeout(void)
|
|
{
|
|
#ifdef DEBUG
|
|
__CTRACE(__CTRACE_MISC, "__notimeout()\n");
|
|
#endif
|
|
/* Check if we need to restart ... */
|
|
if (_cursesi_screen->endwin)
|
|
__restartwin();
|
|
|
|
if (_cursesi_screen->notty == TRUE)
|
|
return OK;
|
|
_cursesi_screen->rawt.c_cc[VMIN] = 1;
|
|
_cursesi_screen->rawt.c_cc[VTIME] = 0;
|
|
_cursesi_screen->cbreakt.c_cc[VMIN] = 1;
|
|
_cursesi_screen->cbreakt.c_cc[VTIME] = 0;
|
|
_cursesi_screen->baset.c_cc[VMIN] = 1;
|
|
_cursesi_screen->baset.c_cc[VTIME] = 0;
|
|
|
|
return (tcsetattr(fileno(_cursesi_screen->infd),
|
|
__tcaction ? TCSASOFT | TCSANOW : TCSANOW,
|
|
_cursesi_screen->curt) ? ERR : OK);
|
|
}
|
|
|
|
int
|
|
echo(void)
|
|
{
|
|
#ifdef DEBUG
|
|
__CTRACE(__CTRACE_MISC, "echo()\n");
|
|
#endif
|
|
/* Check if we need to restart ... */
|
|
if (_cursesi_screen->endwin)
|
|
__restartwin();
|
|
|
|
__echoit = 1;
|
|
return (OK);
|
|
}
|
|
|
|
int
|
|
noecho(void)
|
|
{
|
|
#ifdef DEBUG
|
|
__CTRACE(__CTRACE_MISC, "noecho()\n");
|
|
#endif
|
|
/* Check if we need to restart ... */
|
|
if (_cursesi_screen->endwin)
|
|
__restartwin();
|
|
|
|
__echoit = 0;
|
|
return (OK);
|
|
}
|
|
|
|
int
|
|
nl(void)
|
|
{
|
|
#ifdef DEBUG
|
|
__CTRACE(__CTRACE_MISC, "nl()\n");
|
|
#endif
|
|
/* Check if we need to restart ... */
|
|
if (_cursesi_screen->endwin)
|
|
__restartwin();
|
|
|
|
if (_cursesi_screen->notty == TRUE)
|
|
return OK;
|
|
_cursesi_screen->rawt.c_iflag |= ICRNL;
|
|
_cursesi_screen->rawt.c_oflag |= ONLCR;
|
|
_cursesi_screen->cbreakt.c_iflag |= ICRNL;
|
|
_cursesi_screen->cbreakt.c_oflag |= ONLCR;
|
|
_cursesi_screen->baset.c_iflag |= ICRNL;
|
|
_cursesi_screen->baset.c_oflag |= ONLCR;
|
|
|
|
_cursesi_screen->nl = 1;
|
|
_cursesi_screen->pfast = _cursesi_screen->rawmode;
|
|
return (tcsetattr(fileno(_cursesi_screen->infd), __tcaction ?
|
|
TCSASOFT | TCSADRAIN : TCSADRAIN,
|
|
_cursesi_screen->curt) ? ERR : OK);
|
|
}
|
|
|
|
int
|
|
nonl(void)
|
|
{
|
|
#ifdef DEBUG
|
|
__CTRACE(__CTRACE_MISC, "nonl()\n");
|
|
#endif
|
|
/* Check if we need to restart ... */
|
|
if (_cursesi_screen->endwin)
|
|
__restartwin();
|
|
|
|
if (_cursesi_screen->notty == TRUE)
|
|
return OK;
|
|
_cursesi_screen->rawt.c_iflag &= ~ICRNL;
|
|
_cursesi_screen->rawt.c_oflag &= ~ONLCR;
|
|
_cursesi_screen->cbreakt.c_iflag &= ~ICRNL;
|
|
_cursesi_screen->cbreakt.c_oflag &= ~ONLCR;
|
|
_cursesi_screen->baset.c_iflag &= ~ICRNL;
|
|
_cursesi_screen->baset.c_oflag &= ~ONLCR;
|
|
|
|
_cursesi_screen->nl = 0;
|
|
__pfast = 1;
|
|
return (tcsetattr(fileno(_cursesi_screen->infd), __tcaction ?
|
|
TCSASOFT | TCSADRAIN : TCSADRAIN,
|
|
_cursesi_screen->curt) ? ERR : OK);
|
|
}
|
|
|
|
#ifndef _CURSES_USE_MACROS
|
|
void
|
|
noqiflush(void)
|
|
{
|
|
(void) intrflush(stdscr, FALSE);
|
|
}
|
|
|
|
void
|
|
qiflush(void)
|
|
{
|
|
(void) intrflush(stdscr, TRUE);
|
|
}
|
|
#endif /* _CURSES_USE_MACROS */
|
|
|
|
int
|
|
intrflush(WINDOW *win, bool bf) /*ARGSUSED*/
|
|
{
|
|
/* Check if we need to restart ... */
|
|
if (_cursesi_screen->endwin)
|
|
__restartwin();
|
|
|
|
if (_cursesi_screen->notty == TRUE)
|
|
return OK;
|
|
if (bf) {
|
|
_cursesi_screen->rawt.c_lflag &= ~NOFLSH;
|
|
_cursesi_screen->cbreakt.c_lflag &= ~NOFLSH;
|
|
_cursesi_screen->baset.c_lflag &= ~NOFLSH;
|
|
} else {
|
|
_cursesi_screen->rawt.c_lflag |= NOFLSH;
|
|
_cursesi_screen->cbreakt.c_lflag |= NOFLSH;
|
|
_cursesi_screen->baset.c_lflag |= NOFLSH;
|
|
}
|
|
|
|
__pfast = 1;
|
|
return (tcsetattr(fileno(_cursesi_screen->infd), __tcaction ?
|
|
TCSASOFT | TCSADRAIN : TCSADRAIN,
|
|
_cursesi_screen->curt) ? ERR : OK);
|
|
}
|
|
|
|
void
|
|
__startwin(SCREEN *screen)
|
|
{
|
|
|
|
(void) fflush(screen->infd);
|
|
|
|
/*
|
|
* Some C libraries default to a 1K buffer when talking to a tty.
|
|
* With a larger screen, especially across a network, we'd like
|
|
* to get it to all flush in a single write. Make it twice as big
|
|
* as just the characters (so that we have room for cursor motions
|
|
* and attribute information) but no more than 8K.
|
|
*/
|
|
if (screen->stdbuf == NULL) {
|
|
screen->len = LINES * COLS * 2;
|
|
if (screen->len > 8192)
|
|
screen->len = 8192;
|
|
if ((screen->stdbuf = malloc(screen->len)) == NULL)
|
|
screen->len = 0;
|
|
}
|
|
(void) setvbuf(screen->outfd, screen->stdbuf, _IOFBF, screen->len);
|
|
|
|
ti_puts(screen->term, t_enter_ca_mode(screen->term), 0,
|
|
__cputchar_args, (void *) screen->outfd);
|
|
ti_puts(screen->term, t_cursor_normal(screen->term), 0,
|
|
__cputchar_args, (void *) screen->outfd);
|
|
if (screen->curscr->flags & __KEYPAD)
|
|
ti_puts(screen->term, t_keypad_xmit(screen->term), 0,
|
|
__cputchar_args, (void *) screen->outfd);
|
|
screen->endwin = 0;
|
|
}
|
|
|
|
int
|
|
endwin(void)
|
|
{
|
|
#ifdef DEBUG
|
|
__CTRACE(__CTRACE_MISC, "endwin\n");
|
|
#endif
|
|
return __stopwin();
|
|
}
|
|
|
|
bool
|
|
isendwin(void)
|
|
{
|
|
return (_cursesi_screen->endwin ? TRUE : FALSE);
|
|
}
|
|
|
|
int
|
|
flushinp(void)
|
|
{
|
|
(void) fpurge(_cursesi_screen->infd);
|
|
return (OK);
|
|
}
|
|
|
|
/*
|
|
* The following routines, savetty and resetty are completely useless and
|
|
* are left in only as stubs. If people actually use them they will almost
|
|
* certainly screw up the state of the world.
|
|
*/
|
|
/*static struct termios savedtty;*/
|
|
int
|
|
savetty(void)
|
|
{
|
|
if (_cursesi_screen->notty == TRUE)
|
|
return OK;
|
|
return (tcgetattr(fileno(_cursesi_screen->infd),
|
|
&_cursesi_screen->savedtty) ? ERR : OK);
|
|
}
|
|
|
|
int
|
|
resetty(void)
|
|
{
|
|
if (_cursesi_screen->notty == TRUE)
|
|
return OK;
|
|
return (tcsetattr(fileno(_cursesi_screen->infd), __tcaction ?
|
|
TCSASOFT | TCSADRAIN : TCSADRAIN,
|
|
&_cursesi_screen->savedtty) ? ERR : OK);
|
|
}
|
|
|
|
/*
|
|
* erasechar --
|
|
* Return the character of the erase key.
|
|
*/
|
|
char
|
|
erasechar(void)
|
|
{
|
|
if (_cursesi_screen->notty == TRUE)
|
|
return 0;
|
|
return _cursesi_screen->baset.c_cc[VERASE];
|
|
}
|
|
|
|
/*
|
|
* killchar --
|
|
* Return the character of the kill key.
|
|
*/
|
|
char
|
|
killchar(void)
|
|
{
|
|
if (_cursesi_screen->notty == TRUE)
|
|
return 0;
|
|
return _cursesi_screen->baset.c_cc[VKILL];
|
|
}
|
|
|
|
/*
|
|
* erasewchar --
|
|
* Return the wide character of the erase key.
|
|
*/
|
|
int
|
|
erasewchar( wchar_t *ch )
|
|
{
|
|
#ifndef HAVE_WCHAR
|
|
return ERR;
|
|
#else
|
|
if (_cursesi_screen->notty == TRUE)
|
|
return ERR;
|
|
*ch = _cursesi_screen->baset.c_cc[VERASE];
|
|
return OK;
|
|
#endif /* HAVE_WCHAR */
|
|
}
|
|
|
|
/*
|
|
* killwchar --
|
|
* Return the wide character of the kill key.
|
|
*/
|
|
int
|
|
killwchar( wchar_t *ch )
|
|
{
|
|
#ifndef HAVE_WCHAR
|
|
return ERR;
|
|
#else
|
|
if (_cursesi_screen->notty == TRUE)
|
|
return 0;
|
|
*ch = _cursesi_screen->baset.c_cc[VKILL];
|
|
return OK;
|
|
#endif /* HAVE_WCHAR */
|
|
}
|