ea345868fa
* deprecate register * replace berkeley string funcs with ansi equivs * use getopt rather than home grown cruft * use foo(char *, ...) rather than foo(char *, long, long, long, [long, ...])
196 lines
4.9 KiB
C
196 lines
4.9 KiB
C
/* $NetBSD: wwtty.c,v 1.5 1997/11/21 08:37:56 lukem Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1983, 1993
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to Berkeley by
|
|
* Edward Wang at The University of California, Berkeley.
|
|
*
|
|
* 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. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. 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[] = "@(#)wwtty.c 8.1 (Berkeley) 6/6/93";
|
|
#else
|
|
__RCSID("$NetBSD: wwtty.c,v 1.5 1997/11/21 08:37:56 lukem Exp $");
|
|
#endif
|
|
#endif /* not lint */
|
|
|
|
#include <sys/types.h>
|
|
#if !defined(OLD_TTY) && !defined(TIOCGWINSZ)
|
|
#include <sys/ioctl.h>
|
|
#endif
|
|
#include <fcntl.h>
|
|
#include "ww.h"
|
|
|
|
int
|
|
wwgettty(d, t)
|
|
int d;
|
|
struct ww_tty *t;
|
|
{
|
|
#ifdef OLD_TTY
|
|
if (ioctl(d, TIOCGETP, (char *)&t->ww_sgttyb) < 0)
|
|
goto bad;
|
|
if (ioctl(d, TIOCGETC, (char *)&t->ww_tchars) < 0)
|
|
goto bad;
|
|
if (ioctl(d, TIOCGLTC, (char *)&t->ww_ltchars) < 0)
|
|
goto bad;
|
|
if (ioctl(d, TIOCLGET, (char *)&t->ww_lmode) < 0)
|
|
goto bad;
|
|
if (ioctl(d, TIOCGETD, (char *)&t->ww_ldisc) < 0)
|
|
goto bad;
|
|
#else
|
|
if (tcgetattr(d, &t->ww_termios) < 0)
|
|
goto bad;
|
|
#endif
|
|
return 0;
|
|
bad:
|
|
wwerrno = WWE_SYS;
|
|
return -1;
|
|
}
|
|
|
|
/*
|
|
* Set the modes of tty 'd' to 't'
|
|
* 'o' is the current modes. We set the line discipline only if
|
|
* it changes, to avoid unnecessary flushing of typeahead.
|
|
*/
|
|
int
|
|
wwsettty(d, t)
|
|
int d;
|
|
struct ww_tty *t;
|
|
{
|
|
#ifdef OLD_TTY
|
|
int i;
|
|
|
|
/* XXX, for buggy tty drivers that don't wait for output to drain */
|
|
while (ioctl(d, TIOCOUTQ, &i) >= 0 && i > 0)
|
|
usleep(100000);
|
|
if (ioctl(d, TIOCSETN, (char *)&t->ww_sgttyb) < 0)
|
|
goto bad;
|
|
if (ioctl(d, TIOCSETC, (char *)&t->ww_tchars) < 0)
|
|
goto bad;
|
|
if (ioctl(d, TIOCSLTC, (char *)&t->ww_ltchars) < 0)
|
|
goto bad;
|
|
if (ioctl(d, TIOCLSET, (char *)&t->ww_lmode) < 0)
|
|
goto bad;
|
|
if (ioctl(d, TIOCGETD, (char *)&i) < 0)
|
|
goto bad;
|
|
if (t->ww_ldisc != i &&
|
|
ioctl(d, TIOCSETD, (char *)&t->ww_ldisc) < 0)
|
|
goto bad;
|
|
#else
|
|
#ifdef sun
|
|
/* XXX, for buggy tty drivers that don't wait for output to drain */
|
|
(void) tcdrain(d);
|
|
#endif
|
|
if (tcsetattr(d, TCSADRAIN, &t->ww_termios) < 0)
|
|
goto bad;
|
|
#endif
|
|
return 0;
|
|
bad:
|
|
wwerrno = WWE_SYS;
|
|
return -1;
|
|
}
|
|
|
|
/*
|
|
* The ttysize and stop-start routines must also work
|
|
* on the control side of pseudoterminals.
|
|
*/
|
|
|
|
int
|
|
wwgetttysize(d, r, c)
|
|
int d;
|
|
int *r, *c;
|
|
{
|
|
struct winsize winsize;
|
|
|
|
if (ioctl(d, TIOCGWINSZ, (char *)&winsize) < 0) {
|
|
wwerrno = WWE_SYS;
|
|
return -1;
|
|
}
|
|
if (winsize.ws_row != 0)
|
|
*r = winsize.ws_row;
|
|
if (winsize.ws_col != 0)
|
|
*c = winsize.ws_col;
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
wwsetttysize(d, r, c)
|
|
int d, r, c;
|
|
{
|
|
struct winsize winsize;
|
|
|
|
winsize.ws_row = r;
|
|
winsize.ws_col = c;
|
|
winsize.ws_xpixel = winsize.ws_ypixel = 0;
|
|
if (ioctl(d, TIOCSWINSZ, (char *)&winsize) < 0) {
|
|
wwerrno = WWE_SYS;
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
wwstoptty(d)
|
|
int d;
|
|
{
|
|
#if !defined(OLD_TTY) && defined(TCOOFF)
|
|
/* not guaranteed to work on the pty side */
|
|
if (tcflow(d, TCOOFF) < 0)
|
|
#else
|
|
if (ioctl(d, TIOCSTOP, (char *)0) < 0)
|
|
#endif
|
|
{
|
|
wwerrno = WWE_SYS;
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
wwstarttty(d)
|
|
int d;
|
|
{
|
|
#if !defined(OLD_TTY) && defined(TCOON)
|
|
/* not guaranteed to work on the pty side */
|
|
if (tcflow(d, TCOON) < 0)
|
|
#else
|
|
if (ioctl(d, TIOCSTART, (char *)0) < 0)
|
|
#endif
|
|
{
|
|
wwerrno = WWE_SYS;
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|