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📄 kern_linker.c(54.3 KB)
📄 kern_lock.c(46.99 KB)
📄 kern_lockf.c(64.46 KB)
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📄 kern_mtxpool.c(5.82 KB)
📄 kern_mutex.c(33.62 KB)
📄 kern_ntptime.c(32.49 KB)
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📄 kern_physio.c(5.74 KB)
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📄 kern_priv.c(9.14 KB)
📄 kern_proc.c(80.01 KB)
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📄 kern_shutdown.c(43.34 KB)
📄 kern_sig.c(101.89 KB)
📄 kern_switch.c(13.85 KB)
📄 kern_sx.c(40.27 KB)
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📄 kern_syscalls.c(6.74 KB)
📄 kern_sysctl.c(67.24 KB)
📄 kern_tc.c(55.73 KB)
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📄 kern_time.c(40.89 KB)
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📄 posix4_mib.c(5.59 KB)
📄 sched_4bsd.c(45.03 KB)
📄 sched_ule.c(82.65 KB)
📄 serdev_if.m(3.49 KB)
📄 stack_protector.c(613 B)
📄 subr_acl_nfs4.c(37.42 KB)
📄 subr_acl_posix1e.c(17.71 KB)
📄 subr_atomic64.c(3.97 KB)
📄 subr_autoconf.c(7.7 KB)
📄 subr_blist.c(31.88 KB)
📄 subr_boot.c(5.8 KB)
📄 subr_bufring.c(2.21 KB)
📄 subr_bus.c(145.4 KB)
📄 subr_bus_dma.c(19.67 KB)
📄 subr_busdma_bufalloc.c(5.24 KB)
📄 subr_capability.c(11.93 KB)
📄 subr_clock.c(10.61 KB)
📄 subr_compressor.c(13.11 KB)
📄 subr_counter.c(4.44 KB)
📄 subr_coverage.c(6.17 KB)
📄 subr_csan.c(25.39 KB)
📄 subr_devmap.c(9.8 KB)
📄 subr_devstat.c(16.21 KB)
📄 subr_disk.c(8.54 KB)
📄 subr_dummy_vdso_tc.c(1.7 KB)
📄 subr_early.c(2.26 KB)
📄 subr_epoch.c(25.02 KB)
📄 subr_eventhandler.c(9.17 KB)
📄 subr_fattime.c(9.98 KB)
📄 subr_filter.c(12.2 KB)
📄 subr_firmware.c(13.88 KB)
📄 subr_gtaskqueue.c(20.19 KB)
📄 subr_hash.c(4.8 KB)
📄 subr_hints.c(12.87 KB)
📄 subr_intr.c(40.61 KB)
📄 subr_kdb.c(16.13 KB)
📄 subr_kobj.c(7.1 KB)
📄 subr_lock.c(18.81 KB)
📄 subr_log.c(7.64 KB)
📄 subr_mchain.c(11.06 KB)
📄 subr_module.c(12.98 KB)
📄 subr_msgbuf.c(10.6 KB)
📄 subr_param.c(10.93 KB)
📄 subr_pcpu.c(10.18 KB)
📄 subr_pctrie.c(20.99 KB)
📄 subr_physmem.c(11.52 KB)
📄 subr_pidctrl.c(5.43 KB)
📄 subr_power.c(3.13 KB)
📄 subr_prf.c(27.42 KB)
📄 subr_prng.c(3.36 KB)
📄 subr_prof.c(15.43 KB)
📄 subr_rangeset.c(8.5 KB)
📄 subr_rman.c(27.61 KB)
📄 subr_rtc.c(11.42 KB)
📄 subr_sbuf.c(20.53 KB)
📄 subr_scanf.c(15.59 KB)
📄 subr_sfbuf.c(6.17 KB)
📄 subr_sglist.c(22.83 KB)
📄 subr_sleepqueue.c(39.43 KB)
📄 subr_smp.c(31.62 KB)
📄 subr_smr.c(20.17 KB)
📄 subr_stack.c(6.47 KB)
📄 subr_stats.c(103.01 KB)
📄 subr_syscall.c(7.98 KB)
📄 subr_taskqueue.c(21.1 KB)
📄 subr_terminal.c(15.52 KB)
📄 subr_trap.c(10.87 KB)
📄 subr_turnstile.c(35.58 KB)
📄 subr_uio.c(11.38 KB)
📄 subr_unit.c(22.97 KB)
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📄 sys_socket.c(20.11 KB)
📄 syscalls.c(22.73 KB)
📄 syscalls.master(60.26 KB)
📄 systrace_args.c(178.49 KB)
📄 sysv_ipc.c(6.53 KB)
📄 sysv_msg.c(48.65 KB)
📄 sysv_sem.c(49.85 KB)
📄 sysv_shm.c(43.93 KB)
📄 tty.c(55.14 KB)
📄 tty_compat.c(11.46 KB)
📄 tty_info.c(9.93 KB)
📄 tty_inq.c(12.22 KB)
📄 tty_outq.c(8.74 KB)
📄 tty_pts.c(19.74 KB)
📄 tty_tty.c(2.83 KB)
📄 tty_ttydisc.c(28.6 KB)
📄 uipc_accf.c(8.07 KB)
📄 uipc_debug.c(12.42 KB)
📄 uipc_domain.c(13.13 KB)
📄 uipc_ktls.c(55.7 KB)
📄 uipc_mbuf.c(52.45 KB)
📄 uipc_mbuf2.c(12.64 KB)
📄 uipc_mbufhash.c(4.9 KB)
📄 uipc_mqueue.c(64.64 KB)
📄 uipc_sem.c(25.18 KB)
📄 uipc_shm.c(50.47 KB)
📄 uipc_sockbuf.c(42.9 KB)
📄 uipc_socket.c(110.61 KB)
📄 uipc_syscalls.c(35.94 KB)
📄 uipc_usrreq.c(75.11 KB)
📄 vfs_acl.c(14.5 KB)
📄 vfs_aio.c(76.32 KB)
📄 vfs_bio.c(145.39 KB)
📄 vfs_cache.c(143.09 KB)
📄 vfs_cluster.c(28.36 KB)
📄 vfs_default.c(33.16 KB)
📄 vfs_export.c(14.55 KB)
📄 vfs_extattr.c(17.91 KB)
📄 vfs_hash.c(6 KB)
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📄 vfs_lookup.c(45.48 KB)
📄 vfs_mount.c(62.58 KB)
📄 vfs_mountroot.c(26.23 KB)
📄 vfs_subr.c(167.52 KB)
📄 vfs_syscalls.c(106.86 KB)
📄 vfs_vnops.c(86.28 KB)
📄 vnode_if.src(13.66 KB)

Editing: tty_compat.c

/*-
 * SPDX-License-Identifier: BSD-3-Clause
 *
 * Copyright (c) 1982, 1986, 1991, 1993
 *	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.
 *
 *	@(#)tty_compat.c	8.1 (Berkeley) 6/10/93
 */

#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");

/*
 * mapping routines for old line discipline (yuck)
 */

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/ioctl_compat.h>
#include <sys/tty.h>
#include <sys/kernel.h>
#include <sys/sysctl.h>

struct speedtab {
	int sp_speed;			/* Speed. */
	int sp_code;			/* Code. */
};

static int ttcompatgetflags(struct tty *tp);
static void ttcompatsetflags(struct tty *tp, struct termios *t);
static void ttcompatsetlflags(struct tty *tp, struct termios *t);
static int ttcompatspeedtab(int speed, struct speedtab *table);

static int ttydebug = 0;
SYSCTL_INT(_debug, OID_AUTO, ttydebug, CTLFLAG_RW, &ttydebug, 0, "");

static struct speedtab compatspeeds[] = {
#define MAX_SPEED	17
	{ 115200, 17 },
	{ 57600, 16 },
	{ 38400, 15 },
	{ 19200, 14 },
	{ 9600,	13 },
	{ 4800,	12 },
	{ 2400,	11 },
	{ 1800,	10 },
	{ 1200,	9 },
	{ 600,	8 },
	{ 300,	7 },
	{ 200,	6 },
	{ 150,	5 },
	{ 134,	4 },
	{ 110,	3 },
	{ 75,	2 },
	{ 50,	1 },
	{ 0,	0 },
	{ -1,	-1 },
};
static int compatspcodes[] = {
	0, 50, 75, 110, 134, 150, 200, 300, 600, 1200,
	1800, 2400, 4800, 9600, 19200, 38400, 57600, 115200,
};

static int
ttcompatspeedtab(int speed, struct speedtab *table)
{
	if (speed == 0)
		return (0); /* hangup */
	for ( ; table->sp_speed > 0; table++)
		if (table->sp_speed <= speed) /* nearest one, rounded down */
			return (table->sp_code);
	return (1); /* 50, min and not hangup */
}

static int
ttsetcompat(struct tty *tp, u_long *com, caddr_t data, struct termios *term)
{
	switch (*com) {
	case TIOCSETP:
	case TIOCSETN: {
		struct sgttyb *sg = (struct sgttyb *)data;
		int speed;

if ((speed = sg->sg_ispeed) > MAX_SPEED || speed < 0)
			return(EINVAL);
		else if (speed != ttcompatspeedtab(tp->t_termios.c_ispeed,
		    compatspeeds))
			term->c_ispeed = compatspcodes[speed];
		else
			term->c_ispeed = tp->t_termios.c_ispeed;
		if ((speed = sg->sg_ospeed) > MAX_SPEED || speed < 0)
			return(EINVAL);
		else if (speed != ttcompatspeedtab(tp->t_termios.c_ospeed,
		    compatspeeds))
			term->c_ospeed = compatspcodes[speed];
		else
			term->c_ospeed = tp->t_termios.c_ospeed;
		term->c_cc[VERASE] = sg->sg_erase;
		term->c_cc[VKILL] = sg->sg_kill;
		tp->t_compatflags = (tp->t_compatflags&0xffff0000) |
		    (sg->sg_flags&0xffff);
		ttcompatsetflags(tp, term);
		*com = (*com == TIOCSETP) ? TIOCSETAF : TIOCSETA;
		break;
	}
	case TIOCSETC: {
		struct tchars *tc = (struct tchars *)data;
		cc_t *cc;

cc = term->c_cc;
		cc[VINTR] = tc->t_intrc;
		cc[VQUIT] = tc->t_quitc;
		cc[VSTART] = tc->t_startc;
		cc[VSTOP] = tc->t_stopc;
		cc[VEOF] = tc->t_eofc;
		cc[VEOL] = tc->t_brkc;
		if (tc->t_brkc == (char)_POSIX_VDISABLE)
			cc[VEOL2] = _POSIX_VDISABLE;
		*com = TIOCSETA;
		break;
	}
	case TIOCSLTC: {
		struct ltchars *ltc = (struct ltchars *)data;
		cc_t *cc;

cc = term->c_cc;
		cc[VSUSP] = ltc->t_suspc;
		cc[VDSUSP] = ltc->t_dsuspc;
		cc[VREPRINT] = ltc->t_rprntc;
		cc[VDISCARD] = ltc->t_flushc;
		cc[VWERASE] = ltc->t_werasc;
		cc[VLNEXT] = ltc->t_lnextc;
		*com = TIOCSETA;
		break;
	}
	case TIOCLBIS:
	case TIOCLBIC:
	case TIOCLSET:
		if (*com == TIOCLSET)
			tp->t_compatflags = (tp->t_compatflags&0xffff) |
			    *(int *)data<<16;
		else {
			tp->t_compatflags = (ttcompatgetflags(tp)&0xffff0000) |
			    (tp->t_compatflags&0xffff);
			if (*com == TIOCLBIS)
				tp->t_compatflags |= *(int *)data<<16;
			else
				tp->t_compatflags &= ~(*(int *)data<<16);
		}
		ttcompatsetlflags(tp, term);
		*com = TIOCSETA;
		break;
	}
	return 0;
}

/*ARGSUSED*/
int
tty_ioctl_compat(struct tty *tp, u_long com, caddr_t data, int fflag,
    struct thread *td)
{
	switch (com) {
	case TIOCSETP:
	case TIOCSETN:
	case TIOCSETC:
	case TIOCSLTC:
	case TIOCLBIS:
	case TIOCLBIC:
	case TIOCLSET: {
		struct termios term;
		int error;

term = tp->t_termios;
		if ((error = ttsetcompat(tp, &com, data, &term)) != 0)
			return error;
		return tty_ioctl(tp, com, &term, fflag, td);
	}
	case TIOCGETP: {
		struct sgttyb *sg = (struct sgttyb *)data;
		cc_t *cc = tp->t_termios.c_cc;

sg->sg_ospeed = ttcompatspeedtab(tp->t_termios.c_ospeed,
		    compatspeeds);
		if (tp->t_termios.c_ispeed == 0)
			sg->sg_ispeed = sg->sg_ospeed;
		else
			sg->sg_ispeed = ttcompatspeedtab(tp->t_termios.c_ispeed,
			    compatspeeds);
		sg->sg_erase = cc[VERASE];
		sg->sg_kill = cc[VKILL];
		sg->sg_flags = tp->t_compatflags = ttcompatgetflags(tp);
		break;
	}
	case TIOCGETC: {
		struct tchars *tc = (struct tchars *)data;
		cc_t *cc = tp->t_termios.c_cc;

tc->t_intrc = cc[VINTR];
		tc->t_quitc = cc[VQUIT];
		tc->t_startc = cc[VSTART];
		tc->t_stopc = cc[VSTOP];
		tc->t_eofc = cc[VEOF];
		tc->t_brkc = cc[VEOL];
		break;
	}
	case TIOCGLTC: {
		struct ltchars *ltc = (struct ltchars *)data;
		cc_t *cc = tp->t_termios.c_cc;

ltc->t_suspc = cc[VSUSP];
		ltc->t_dsuspc = cc[VDSUSP];
		ltc->t_rprntc = cc[VREPRINT];
		ltc->t_flushc = cc[VDISCARD];
		ltc->t_werasc = cc[VWERASE];
		ltc->t_lnextc = cc[VLNEXT];
		break;
	}
	case TIOCLGET:
		tp->t_compatflags =
		 (ttcompatgetflags(tp) & 0xffff0000UL)
		   | (tp->t_compatflags & 0xffff);
		*(int *)data = tp->t_compatflags>>16;
		if (ttydebug)
			printf("CLGET: returning %x\n", *(int *)data);
		break;

case OTIOCGETD:
		*(int *)data = 2;
		break;

case OTIOCSETD: {
		int ldisczero = 0;

return (tty_ioctl(tp, TIOCSETD,
			*(int *)data == 2 ? (caddr_t)&ldisczero : data,
			fflag, td));
	    }

case OTIOCCONS: {
		int one = 1;

return (tty_ioctl(tp, TIOCCONS, (caddr_t)&one, fflag, td));
	}

default:
		return (ENOIOCTL);
	}
	return (0);
}

static int
ttcompatgetflags(struct tty *tp)
{
	tcflag_t iflag	= tp->t_termios.c_iflag;
	tcflag_t lflag	= tp->t_termios.c_lflag;
	tcflag_t oflag	= tp->t_termios.c_oflag;
	tcflag_t cflag	= tp->t_termios.c_cflag;
	int flags = 0;

if (iflag&IXOFF)
		flags |= TANDEM;
	if (iflag&ICRNL || oflag&ONLCR)
		flags |= CRMOD;
	if ((cflag&CSIZE) == CS8) {
		flags |= PASS8;
		if (iflag&ISTRIP)
			flags |= ANYP;
	}
	else if (cflag&PARENB) {
		if (iflag&INPCK) {
			if (cflag&PARODD)
				flags |= ODDP;
			else
				flags |= EVENP;
		} else
			flags |= EVENP | ODDP;
	}

if ((lflag&ICANON) == 0) {
		/* fudge */
		if (iflag&(INPCK|ISTRIP|IXON) || lflag&(IEXTEN|ISIG)
		    || (cflag&(CSIZE|PARENB)) != CS8)
			flags |= CBREAK;
		else
			flags |= RAW;
	}
	if (!(flags&RAW) && !(oflag&OPOST) && (cflag&(CSIZE|PARENB)) == CS8)
		flags |= LITOUT;
	if (cflag&MDMBUF)
		flags |= MDMBUF;
	if ((cflag&HUPCL) == 0)
		flags |= NOHANG;
	if (oflag&TAB3)
		flags |= XTABS;
	if (lflag&ECHOE)
		flags |= CRTERA|CRTBS;
	if (lflag&ECHOKE)
		flags |= CRTKIL|CRTBS;
	if (lflag&ECHOPRT)
		flags |= PRTERA;
	if (lflag&ECHOCTL)
		flags |= CTLECH;
	if ((iflag&IXANY) == 0)
		flags |= DECCTQ;
	flags |= lflag&(ECHO|TOSTOP|FLUSHO|PENDIN|NOFLSH);
	if (ttydebug)
		printf("getflags: %x\n", flags);
	return (flags);
}

static void
ttcompatsetflags(struct tty *tp, struct termios *t)
{
	int flags = tp->t_compatflags;
	tcflag_t iflag	= t->c_iflag;
	tcflag_t oflag	= t->c_oflag;
	tcflag_t lflag	= t->c_lflag;
	tcflag_t cflag	= t->c_cflag;

if (flags & RAW) {
		iflag = IGNBRK;
		lflag &= ~(ECHOCTL|ISIG|ICANON|IEXTEN);
	} else {
		iflag &= ~(PARMRK|IGNPAR|IGNCR|INLCR);
		iflag |= BRKINT|IXON|IMAXBEL;
		lflag |= ISIG|IEXTEN|ECHOCTL;	/* XXX was echoctl on ? */
		if (flags & XTABS)
			oflag |= TAB3;
		else
			oflag &= ~TAB3;
		if (flags & CBREAK)
			lflag &= ~ICANON;
		else
			lflag |= ICANON;
		if (flags&CRMOD) {
			iflag |= ICRNL;
			oflag |= ONLCR;
		} else {
			iflag &= ~ICRNL;
			oflag &= ~ONLCR;
		}
	}
	if (flags&ECHO)
		lflag |= ECHO;
	else
		lflag &= ~ECHO;

cflag &= ~(CSIZE|PARENB);
	if (flags&(RAW|LITOUT|PASS8)) {
		cflag |= CS8;
		if (!(flags&(RAW|PASS8))
		    || (flags&(RAW|PASS8|ANYP)) == (PASS8|ANYP))
			iflag |= ISTRIP;
		else
			iflag &= ~ISTRIP;
		if (flags&(RAW|LITOUT))
			oflag &= ~OPOST;
		else
			oflag |= OPOST;
	} else {
		cflag |= CS7|PARENB;
		iflag |= ISTRIP;
		oflag |= OPOST;
	}
	/* XXX don't set INPCK if RAW or PASS8? */
	if ((flags&(EVENP|ODDP)) == EVENP) {
		iflag |= INPCK;
		cflag &= ~PARODD;
	} else if ((flags&(EVENP|ODDP)) == ODDP) {
		iflag |= INPCK;
		cflag |= PARODD;
	} else
		iflag &= ~INPCK;
	if (flags&TANDEM)
		iflag |= IXOFF;
	else
		iflag &= ~IXOFF;
	if ((flags&DECCTQ) == 0)
		iflag |= IXANY;
	else
		iflag &= ~IXANY;
	t->c_iflag = iflag;
	t->c_oflag = oflag;
	t->c_lflag = lflag;
	t->c_cflag = cflag;
}

static void
ttcompatsetlflags(struct tty *tp, struct termios *t)
{
	int flags = tp->t_compatflags;
	tcflag_t iflag	= t->c_iflag;
	tcflag_t oflag	= t->c_oflag;
	tcflag_t lflag	= t->c_lflag;
	tcflag_t cflag	= t->c_cflag;

/*
	 * The next if-else statement is copied from above so don't bother
	 * checking it separately.  We could avoid fiddlling with the
	 * character size if the mode is already RAW or if neither the
	 * LITOUT bit or the PASS8 bit is being changed, but the delta of
	 * the change is not available here and skipping the RAW case would
	 * make the code different from above.
	 */
	cflag &= ~(CSIZE|PARENB);
	if (flags&(RAW|LITOUT|PASS8)) {
		cflag |= CS8;
		if (!(flags&(RAW|PASS8))
		    || (flags&(RAW|PASS8|ANYP)) == (PASS8|ANYP))
			iflag |= ISTRIP;
		else
			iflag &= ~ISTRIP;
		if (flags&(RAW|LITOUT))
			oflag &= ~OPOST;
		else
			oflag |= OPOST;
	} else {
		cflag |= CS7|PARENB;
		iflag |= ISTRIP;
		oflag |= OPOST;
	}
	t->c_iflag = iflag;
	t->c_oflag = oflag;
	t->c_lflag = lflag;
	t->c_cflag = cflag;
}

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