mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-22 11:17:19 +00:00
197 lines
5.2 KiB
C
197 lines
5.2 KiB
C
/* $Header: /p/tcsh/cvsroot/tcsh/tc.disc.c,v 3.17 2006/03/02 18:46:45 christos Exp $ */
|
|
/*
|
|
* tc.disc.c: Functions to set/clear line disciplines
|
|
*
|
|
*/
|
|
/*-
|
|
* Copyright (c) 1980, 1991 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 "sh.h"
|
|
|
|
RCSID("$tcsh: tc.disc.c,v 3.17 2006/03/02 18:46:45 christos Exp $")
|
|
|
|
#ifdef OREO
|
|
#include <compat.h>
|
|
#endif /* OREO */
|
|
|
|
#include "ed.h"
|
|
|
|
static int add_discipline = 0; /* Did we add a line discipline */
|
|
|
|
#if defined(IRIS4D) || defined(OREO) || defined(sonyrisc)
|
|
# define HAVE_DISC
|
|
# ifndef POSIX
|
|
static struct termio otermiob;
|
|
# else
|
|
static struct termios otermiob;
|
|
# endif /* POSIX */
|
|
#endif /* IRIS4D || OREO */
|
|
|
|
#ifdef _IBMR2
|
|
# define HAVE_DISC
|
|
char strPOSIX[] = "posix";
|
|
#endif /* _IBMR2 */
|
|
|
|
#if !defined(HAVE_DISC) && defined(TIOCGETD) && defined(NTTYDISC)
|
|
static int oldisc;
|
|
#endif /* !HAVE_DISC && TIOCGETD && NTTYDISC */
|
|
|
|
int
|
|
/*ARGSUSED*/
|
|
setdisc(int f)
|
|
{
|
|
#ifdef IRIS4D
|
|
# ifndef POSIX
|
|
struct termio termiob;
|
|
# else
|
|
struct termios termiob;
|
|
# endif
|
|
|
|
if (ioctl(f, TCGETA, (ioctl_t) & termiob) == 0) {
|
|
otermiob = termiob;
|
|
#if (SYSVREL < 4) || !defined(IRIS4D)
|
|
if (termiob.c_line != NTTYDISC || termiob.c_cc[VSWTCH] == 0) { /*}*/
|
|
termiob.c_line = NTTYDISC;
|
|
#else
|
|
if (termiob.c_cc[VSWTCH] == 0) {
|
|
#endif
|
|
termiob.c_cc[VSWTCH] = CSWTCH;
|
|
if (ioctl(f, TCSETA, (ioctl_t) & termiob) != 0)
|
|
return (-1);
|
|
}
|
|
}
|
|
else
|
|
return (-1);
|
|
add_discipline = 1;
|
|
return (0);
|
|
#endif /* IRIS4D */
|
|
|
|
|
|
#ifdef OREO
|
|
# ifndef POSIX
|
|
struct termio termiob;
|
|
# else
|
|
struct termios termiob;
|
|
# endif
|
|
|
|
struct ltchars ltcbuf;
|
|
|
|
if (ioctl(f, TCGETA, (ioctl_t) & termiob) == 0) {
|
|
int comp = getcompat(COMPAT_BSDTTY);
|
|
otermiob = termiob;
|
|
if ((comp & COMPAT_BSDTTY) != COMPAT_BSDTTY) {
|
|
(void) setcompat(comp | COMPAT_BSDTTY);
|
|
if (ioctl(f, TIOCGLTC, (ioctl_t) & ltcbuf) != 0)
|
|
xprintf(CGETS(21, 1, "Couldn't get local chars.\n"));
|
|
else {
|
|
ltcbuf.t_suspc = CTL_ESC('\032'); /* ^Z */
|
|
ltcbuf.t_dsuspc = CTL_ESC('\031'); /* ^Y */
|
|
ltcbuf.t_rprntc = CTL_ESC('\022'); /* ^R */
|
|
ltcbuf.t_flushc = CTL_ESC('\017'); /* ^O */
|
|
ltcbuf.t_werasc = CTL_ESC('\027'); /* ^W */
|
|
ltcbuf.t_lnextc = CTL_ESC('\026'); /* ^V */
|
|
if (ioctl(f, TIOCSLTC, (ioctl_t) & ltcbuf) != 0)
|
|
xprintf(CGETS(21, 2, "Couldn't set local chars.\n"));
|
|
}
|
|
termiob.c_cc[VSWTCH] = '\0';
|
|
if (ioctl(f, TCSETAF, (ioctl_t) & termiob) != 0)
|
|
return (-1);
|
|
}
|
|
}
|
|
else
|
|
return (-1);
|
|
add_discipline = 1;
|
|
return (0);
|
|
#endif /* OREO */
|
|
|
|
|
|
#ifdef _IBMR2
|
|
union txname tx;
|
|
|
|
tx.tx_which = 0;
|
|
|
|
if (ioctl(f, TXGETLD, (ioctl_t) & tx) == 0) {
|
|
if (strcmp(tx.tx_name, strPOSIX) != 0)
|
|
if (ioctl(f, TXADDCD, (ioctl_t) strPOSIX) == 0) {
|
|
add_discipline = 1;
|
|
return (0);
|
|
}
|
|
return (0);
|
|
}
|
|
else
|
|
return (-1);
|
|
#endif /* _IBMR2 */
|
|
|
|
#ifndef HAVE_DISC
|
|
# if defined(TIOCGETD) && defined(NTTYDISC)
|
|
if (ioctl(f, TIOCGETD, (ioctl_t) & oldisc) == 0) {
|
|
if (oldisc != NTTYDISC) {
|
|
int ldisc = NTTYDISC;
|
|
|
|
if (ioctl(f, TIOCSETD, (ioctl_t) & ldisc) != 0)
|
|
return (-1);
|
|
add_discipline = 1;
|
|
}
|
|
else
|
|
oldisc = -1;
|
|
return (0);
|
|
}
|
|
else
|
|
return (-1);
|
|
# else
|
|
USE(f);
|
|
return (0);
|
|
# endif /* TIOCGETD && NTTYDISC */
|
|
#endif /* !HAVE_DISC */
|
|
} /* end setdisc */
|
|
|
|
|
|
int
|
|
/*ARGSUSED*/
|
|
resetdisc(int f)
|
|
{
|
|
if (add_discipline) {
|
|
add_discipline = 0;
|
|
#if defined(OREO) || defined(IRIS4D)
|
|
return (ioctl(f, TCSETAF, (ioctl_t) & otermiob));
|
|
#endif /* OREO || IRIS4D */
|
|
|
|
#ifdef _IBMR2
|
|
return (ioctl(f, TXDELCD, (ioctl_t) strPOSIX));
|
|
#endif /* _IBMR2 */
|
|
|
|
#ifndef HAVE_DISC
|
|
# if defined(TIOCSETD) && defined(NTTYDISC)
|
|
return (ioctl(f, TIOCSETD, (ioctl_t) & oldisc));
|
|
# endif /* TIOCSETD && NTTYDISC */
|
|
#endif /* !HAVE_DISC */
|
|
}
|
|
USE(f);
|
|
return (0);
|
|
} /* end resetdisc */
|