287 lines
6.7 KiB
C
287 lines
6.7 KiB
C
/* $NetBSD: ttcompat.c,v 1.12 2003/08/07 11:25:28 agc Exp $ */
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/*
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* Copyright (c) 1995
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* The Regents of the University of California. All rights reserved.
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*
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/*
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* ttcompat.c -- convert sgtty flags to termios
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* originally from /sys/kern/tty_compat.c
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*/
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#include <sys/param.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include <sys/ioctl_compat.h>
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#include <termios.h>
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#include <syslog.h>
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#include <fcntl.h>
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#include <dirent.h>
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#include <errno.h>
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include "extern.h"
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/* Macros to clear/set/test flags. */
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#define SET(t, f) (t) |= (f)
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#define CLR(t, f) (t) &= ~(f)
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#define ISSET(t, f) ((t) & (f))
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static int sttygetoflags(struct termios *);
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static void sttysetoflags(struct termios *, int);
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static int
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sttygetoflags(struct termios *tp)
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{
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tcflag_t iflag = tp->c_iflag;
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tcflag_t lflag = tp->c_lflag;
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tcflag_t oflag = tp->c_oflag;
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tcflag_t cflag = tp->c_cflag;
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int flags = 0;
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if (ISSET(cflag, PARENB)) {
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if (ISSET(iflag, INPCK)) {
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if (ISSET(cflag, PARODD))
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SET(flags, ODDP);
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else
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SET(flags, EVENP);
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} else
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SET(flags, EVENP|ODDP);
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}
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if (ISSET(cflag, CSIZE) == CS8) {
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if (!ISSET(iflag, ISTRIP))
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SET(flags, PASS8);
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if (!ISSET(oflag, OPOST))
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SET(flags, LITOUT);
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}
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if (!ISSET(lflag, ICANON)) {
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/* fudge */
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if (ISSET(iflag, IXON) || ISSET(lflag, ISIG|IEXTEN) ||
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ISSET(cflag, PARENB))
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SET(flags, CBREAK);
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else
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SET(flags, RAW);
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}
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return (flags);
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}
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static void
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sttysetoflags(struct termios *tp, int flags)
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{
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tcflag_t iflag = tp->c_iflag;
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tcflag_t oflag = tp->c_oflag;
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tcflag_t lflag = tp->c_lflag;
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tcflag_t cflag = tp->c_cflag;
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if (ISSET(flags, RAW)) {
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iflag &= IXOFF;
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CLR(lflag, ISIG|ICANON|IEXTEN);
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CLR(cflag, PARENB);
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} else {
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SET(iflag, BRKINT|IXON|IMAXBEL);
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SET(lflag, ISIG|IEXTEN);
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if (ISSET(flags, CBREAK))
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CLR(lflag, ICANON);
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else
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SET(lflag, ICANON);
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switch (ISSET(flags, ANYP)) {
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case 0:
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CLR(cflag, PARENB);
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break;
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case ANYP:
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SET(cflag, PARENB);
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CLR(iflag, INPCK);
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break;
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case EVENP:
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SET(cflag, PARENB);
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SET(iflag, INPCK);
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CLR(cflag, PARODD);
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break;
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case ODDP:
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SET(cflag, PARENB);
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SET(iflag, INPCK);
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SET(cflag, PARODD);
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break;
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}
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}
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if (ISSET(flags, RAW|LITOUT|PASS8)) {
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CLR(cflag, CSIZE);
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SET(cflag, CS8);
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if (!ISSET(flags, RAW|PASS8))
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SET(iflag, ISTRIP);
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else
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CLR(iflag, ISTRIP);
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if (!ISSET(flags, RAW|LITOUT))
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SET(oflag, OPOST);
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else
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CLR(oflag, OPOST);
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} else {
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CLR(cflag, CSIZE);
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SET(cflag, CS7);
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SET(iflag, ISTRIP);
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SET(oflag, OPOST);
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}
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tp->c_iflag = iflag;
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tp->c_oflag = oflag;
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tp->c_lflag = lflag;
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tp->c_cflag = cflag;
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}
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void
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sttyclearflags(struct termios *tp, int flags)
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{
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tcflag_t iflag = tp->c_iflag;
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tcflag_t oflag = tp->c_oflag;
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tcflag_t lflag = tp->c_lflag;
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tcflag_t cflag = tp->c_cflag;
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int oflags = sttygetoflags(tp) & ~flags;
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if (ISSET(flags, TANDEM))
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CLR(iflag, IXOFF);
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if (ISSET(flags, ECHO))
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CLR(lflag, ECHO);
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if (ISSET(flags, CRMOD)) {
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CLR(iflag, ICRNL);
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CLR(oflag, ONLCR);
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}
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if (ISSET(flags, XTABS))
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CLR(oflag, OXTABS);
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tp->c_iflag = iflag;
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tp->c_oflag = oflag;
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tp->c_lflag = lflag;
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tp->c_cflag = cflag;
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sttysetoflags(tp, oflags);
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}
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void
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sttysetflags(struct termios *tp, int flags)
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{
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tcflag_t iflag = tp->c_iflag;
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tcflag_t oflag = tp->c_oflag;
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tcflag_t lflag = tp->c_lflag;
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tcflag_t cflag = tp->c_cflag;
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int oflags = sttygetoflags(tp) | flags;
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if (ISSET(flags, TANDEM))
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SET(iflag, IXOFF);
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if (ISSET(flags, ECHO))
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SET(lflag, ECHO);
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if (ISSET(flags, CRMOD)) {
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SET(iflag, ICRNL);
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SET(oflag, ONLCR);
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}
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if (ISSET(flags, XTABS))
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SET(oflag, OXTABS);
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tp->c_iflag = iflag;
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tp->c_oflag = oflag;
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tp->c_lflag = lflag;
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tp->c_cflag = cflag;
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sttysetoflags(tp, oflags);
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}
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void
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sttyclearlflags(struct termios *tp, int flags)
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{
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tcflag_t iflag = tp->c_iflag;
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tcflag_t oflag = tp->c_oflag;
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tcflag_t lflag = tp->c_lflag;
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tcflag_t cflag = tp->c_cflag;
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int oflags = sttygetoflags(tp) & ~flags;
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/* Nothing we can do with CRTBS. */
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if (ISSET(flags, PRTERA))
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CLR(lflag, ECHOPRT);
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if (ISSET(flags, CRTERA))
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CLR(lflag, ECHOE);
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/* Nothing we can do with TILDE. */
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if (ISSET(flags, MDMBUF))
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CLR(cflag, MDMBUF);
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if (ISSET(flags, NOHANG))
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SET(cflag, HUPCL);
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if (ISSET(flags, CRTKIL))
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CLR(lflag, ECHOKE);
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if (ISSET(flags, CTLECH))
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CLR(lflag, ECHOCTL);
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if (ISSET(flags, DECCTQ))
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SET(iflag, IXANY);
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CLR(lflag, ISSET(flags, TOSTOP|FLUSHO|PENDIN|NOFLSH));
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tp->c_iflag = iflag;
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tp->c_oflag = oflag;
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tp->c_lflag = lflag;
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tp->c_cflag = cflag;
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sttysetoflags(tp, oflags);
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}
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void
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sttysetlflags(struct termios *tp, int flags)
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{
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tcflag_t iflag = tp->c_iflag;
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tcflag_t oflag = tp->c_oflag;
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tcflag_t lflag = tp->c_lflag;
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tcflag_t cflag = tp->c_cflag;
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int oflags = sttygetoflags(tp) | flags;
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/* Nothing we can do with CRTBS. */
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if (ISSET(flags, PRTERA))
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SET(lflag, ECHOPRT);
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if (ISSET(flags, CRTERA))
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SET(lflag, ECHOE);
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/* Nothing we can do with TILDE. */
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if (ISSET(flags, MDMBUF))
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SET(cflag, MDMBUF);
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if (ISSET(flags, NOHANG))
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CLR(cflag, HUPCL);
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if (ISSET(flags, CRTKIL))
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SET(lflag, ECHOKE);
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if (ISSET(flags, CTLECH))
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SET(lflag, ECHOCTL);
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if (ISSET(flags, DECCTQ))
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CLR(iflag, IXANY);
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SET(lflag, ISSET(flags, TOSTOP|FLUSHO|PENDIN|NOFLSH));
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tp->c_iflag = iflag;
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tp->c_oflag = oflag;
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tp->c_lflag = lflag;
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tp->c_cflag = cflag;
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sttysetoflags(tp, oflags);
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}
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