/*      $NetBSD: ultrix_ioctl.c,v 1.40 2022/02/09 22:30:27 andvar Exp $ */
/*      from : NetBSD: sunos_ioctl.c,v 1.21 1995/10/07 06:27:31 mycroft Exp */

/*
 * Copyright (c) 1993 Markus Wild.
 * 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. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
 *
 * loosely from: Header: sunos_ioctl.c,v 1.7 93/05/28 04:40:43 torek Exp
 */

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: ultrix_ioctl.c,v 1.40 2022/02/09 22:30:27 andvar Exp $");

#if defined(_KERNEL_OPT)
#include "opt_compat_ultrix.h"
#include "opt_compat_sunos.h"
#endif

#include <sys/param.h>
#include <sys/proc.h>
#include <sys/systm.h>
#include <sys/file.h>
#include <sys/filedesc.h>
#include <sys/ioctl.h>
#include <sys/termios.h>
#include <sys/tty.h>
#include <sys/socket.h>
#include <sys/audioio.h>
#include <net/if.h>

#include <sys/mount.h>

#include <compat/sys/sockio.h>
#include <compat/ultrix/ultrix_syscallargs.h>
#include <sys/syscallargs.h>

#include <compat/sunos/sunos.h>

#include <compat/ultrix/ultrix_tty.h>

#define emul_termio     ultrix_termio
#define emul_termios    ultrix_termios

/*
 * SunOS ioctl calls.
 * This file is something of a hodge-podge.
 * Support gets added as things turn up....
 */

static const struct speedtab sptab[] = {
        { 0, 0 },
        { 50, 1 },
        { 75, 2 },
        { 110, 3 },
        { 134, 4 },
        { 135, 4 },
        { 150, 5 },
        { 200, 6 },
        { 300, 7 },
        { 600, 8 },
        { 1200, 9 },
        { 1800, 10 },
        { 2400, 11 },
        { 4800, 12 },
        { 9600, 13 },
        { 19200, 14 },
        { 38400, 15 },
        { -1, -1 }
};

static const uint16_t s2btab[] = {
        0,
        50,
        75,
        110,
        134,
        150,
        200,
        300,
        600,
        1200,
        1800,
        2400,
        4800,
        9600,
        19200,
        38400,
};


/*
 * Translate a single tty control char from the emulation value
 * to native termios, and vice-versa. Special-case
 * the value of POSIX_VDISABLE, mapping it to and from 0.
 */
#define NATIVE_TO_EMUL_CC(bsd_cc) \
 (((bsd_cc)   != _POSIX_VDISABLE) ? (bsd_cc) : 0)

#define EMUL_TO_NATIVE_CC(emul_cc) \
 (emul_cc) ? (emul_cc) : _POSIX_VDISABLE;


static void stios2btios(struct emul_termios *, struct termios *);
static void btios2stios(struct termios *, struct emul_termios *);
static void stios2stio(struct emul_termios *, struct emul_termio *);
static void stio2stios(struct emul_termio *, struct emul_termios *);

/*
 * these two conversion functions have mostly been done
 * with some perl cut&paste, then handedited to comment
 * out what doesn't exist under NetBSD.
 * A note from Markus's code:
 *      (l & BITMASK1) / BITMASK1 * BITMASK2  is translated
 *      optimally by gcc m68k, much better than any ?: stuff.
 *      Code may vary with different architectures of course.
 *
 * I don't know what optimizer you used, but seeing divu's and
 * bfextu's in the m68k assembly output did not encourage me...
 * as well, gcc on the sparc definitely generates much better
 * code with ?:.
 */


static void
stios2btios(struct emul_termios *st, struct termios *bt)
{
        uint32_t l, r;

        memset(bt, 0, sizeof(*bt));

        l = st->c_iflag;
        r =     ((l & 0x00000001) ? IGNBRK      : 0);
        r |=    ((l & 0x00000002) ? BRKINT      : 0);
        r |=    ((l & 0x00000004) ? IGNPAR      : 0);
        r |=    ((l & 0x00000008) ? PARMRK      : 0);
        r |=    ((l & 0x00000010) ? INPCK       : 0);
        r |=    ((l & 0x00000020) ? ISTRIP      : 0);
        r |=    ((l & 0x00000040) ? INLCR       : 0);
        r |=    ((l & 0x00000080) ? IGNCR       : 0);
        r |=    ((l & 0x00000100) ? ICRNL       : 0);
        /*      ((l & 0x00000200) ? IUCLC       : 0) */
        r |=    ((l & 0x00000400) ? IXON        : 0);
        r |=    ((l & 0x00000800) ? IXANY       : 0);
        r |=    ((l & 0x00001000) ? IXOFF       : 0);
        r |=    ((l & 0x00002000) ? IMAXBEL     : 0);
        bt->c_iflag = r;

        l = st->c_oflag;
        r =     ((l & 0x00000001) ? OPOST       : 0);
        /*      ((l & 0x00000002) ? OLCUC       : 0) */
        r |=    ((l & 0x00000004) ? ONLCR       : 0);
        /*      ((l & 0x00000008) ? OCRNL       : 0) */
        /*      ((l & 0x00000010) ? ONOCR       : 0) */
        /*      ((l & 0x00000020) ? ONLRET      : 0) */
        /*      ((l & 0x00000040) ? OFILL       : 0) */
        /*      ((l & 0x00000080) ? OFDEL       : 0) */
        /*      ((l & 0x00000100) ? NLDLY       : 0) */
        /*      ((l & 0x00000100) ? NL1         : 0) */
        /*      ((l & 0x00000600) ? CRDLY       : 0) */
        /*      ((l & 0x00000200) ? CR1         : 0) */
        /*      ((l & 0x00000400) ? CR2         : 0) */
        /*      ((l & 0x00000600) ? CR3         : 0) */
        /*      ((l & 0x00001800) ? TABDLY      : 0) */
        /*      ((l & 0x00000800) ? TAB1        : 0) */
        /*      ((l & 0x00001000) ? TAB2        : 0) */
        r |=    ((l & 0x00001800) ? OXTABS      : 0);
        /*      ((l & 0x00002000) ? BSDLY       : 0) */
        /*      ((l & 0x00002000) ? BS1         : 0) */
        /*      ((l & 0x00004000) ? VTDLY       : 0) */
        /*      ((l & 0x00004000) ? VT1         : 0) */
        /*      ((l & 0x00008000) ? FFDLY       : 0) */
        /*      ((l & 0x00008000) ? FF1         : 0) */
        /*      ((l & 0x00010000) ? PAGEOUT     : 0) */
        /*      ((l & 0x00020000) ? WRAP        : 0) */
        bt->c_oflag = r;

        l = st->c_cflag;
        switch (l & 0x00000030) {
        case 0:
                r = CS5;
                break;
        case 0x00000010:
                r = CS6;
                break;
        case 0x00000020:
                r = CS7;
                break;
        case 0x00000030:
                r = CS8;
                break;
        }
        r |=    ((l & 0x00000040) ? CSTOPB      : 0);
        r |=    ((l & 0x00000080) ? CREAD       : 0);
        r |=    ((l & 0x00000100) ? PARENB      : 0);
        r |=    ((l & 0x00000200) ? PARODD      : 0);
        r |=    ((l & 0x00000400) ? HUPCL       : 0);
        r |=    ((l & 0x00000800) ? CLOCAL      : 0);
        /*      ((l & 0x00001000) ? LOBLK       : 0) */
        r |=    ((l & 0x80000000) ? (CRTS_IFLOW|CCTS_OFLOW) : 0);
        bt->c_cflag = r;

        bt->c_ispeed = bt->c_ospeed = s2btab[l & 0x0000000f];

        l = st->c_lflag;
        r =     ((l & 0x00000001) ? ISIG        : 0);
        r |=    ((l & 0x00000002) ? ICANON      : 0);
        /*      ((l & 0x00000004) ? XCASE       : 0) */
        r |=    ((l & 0x00000008) ? ECHO        : 0);
        r |=    ((l & 0x00000010) ? ECHOE       : 0);
        r |=    ((l & 0x00000020) ? ECHOK       : 0);
        r |=    ((l & 0x00000040) ? ECHONL      : 0);
        r |=    ((l & 0x00000080) ? NOFLSH      : 0);
        r |=    ((l & 0x00000100) ? TOSTOP      : 0);
        r |=    ((l & 0x00000200) ? ECHOCTL     : 0);
        r |=    ((l & 0x00000400) ? ECHOPRT     : 0);
        r |=    ((l & 0x00000800) ? ECHOKE      : 0);
        /*      ((l & 0x00001000) ? DEFECHO     : 0) */
        r |=    ((l & 0x00002000) ? FLUSHO      : 0);
        r |=    ((l & 0x00004000) ? PENDIN      : 0);
        bt->c_lflag = r;

        bt->c_cc[VINTR]    = EMUL_TO_NATIVE_CC(st->c_cc[0]);
        bt->c_cc[VQUIT]    = EMUL_TO_NATIVE_CC(st->c_cc[1]);
        bt->c_cc[VERASE]   = EMUL_TO_NATIVE_CC(st->c_cc[2]);
        bt->c_cc[VKILL]    = EMUL_TO_NATIVE_CC(st->c_cc[3]);
        bt->c_cc[VEOF]     = EMUL_TO_NATIVE_CC(st->c_cc[4]);
        bt->c_cc[VEOL]     = EMUL_TO_NATIVE_CC(st->c_cc[5]);
        bt->c_cc[VEOL2]    = EMUL_TO_NATIVE_CC(st->c_cc[6]);
        /* not present on NetBSD */
        /* bt->c_cc[VSWTCH]   = EMUL_TO_NATIVE_CC(st->c_cc[7]); */
        bt->c_cc[VSTART]   = EMUL_TO_NATIVE_CC(st->c_cc[10]);
        bt->c_cc[VSTOP]    = EMUL_TO_NATIVE_CC(st->c_cc[11]);
        bt->c_cc[VSUSP]    = EMUL_TO_NATIVE_CC(st->c_cc[12]);
        bt->c_cc[VDSUSP]   = EMUL_TO_NATIVE_CC(st->c_cc[13]);
        bt->c_cc[VREPRINT] = EMUL_TO_NATIVE_CC(st->c_cc[14]);
        bt->c_cc[VDISCARD] = EMUL_TO_NATIVE_CC(st->c_cc[15]);
        bt->c_cc[VWERASE]  = EMUL_TO_NATIVE_CC(st->c_cc[16]);
        bt->c_cc[VLNEXT]   = EMUL_TO_NATIVE_CC(st->c_cc[17]);
        bt->c_cc[VSTATUS]  = EMUL_TO_NATIVE_CC(st->c_cc[18]);

#ifdef COMPAT_ULTRIX
        /* Ultrix termio/termios has real vmin/vtime */
        bt->c_cc[VMIN]     = EMUL_TO_NATIVE_CC(st->c_cc[8]);
        bt->c_cc[VTIME]    = EMUL_TO_NATIVE_CC(st->c_cc[9]);
#else
        /* if `raw mode', create native VMIN/VTIME from SunOS VEOF/VEOL */
        bt->c_cc[VMIN]     = (bt->c_lflag & ICANON) ? 1 : bt->c_cc[VEOF];
        bt->c_cc[VTIME]    = (bt->c_lflag & ICANON) ? 1 : bt->c_cc[VEOL];
#endif

}

/*
 * Convert bsd termios to "sunos" emulated termios
 */
static void
btios2stios(struct termios *bt, struct emul_termios *st)
{
        uint32_t l, r;
        int speed;

        memset(st, 0, sizeof(*st));

        l = bt->c_iflag;
        r =     ((l &  IGNBRK) ? 0x00000001     : 0);
        r |=    ((l &  BRKINT) ? 0x00000002     : 0);
        r |=    ((l &  IGNPAR) ? 0x00000004     : 0);
        r |=    ((l &  PARMRK) ? 0x00000008     : 0);
        r |=    ((l &   INPCK) ? 0x00000010     : 0);
        r |=    ((l &  ISTRIP) ? 0x00000020     : 0);
        r |=    ((l &   INLCR) ? 0x00000040     : 0);
        r |=    ((l &   IGNCR) ? 0x00000080     : 0);
        r |=    ((l &   ICRNL) ? 0x00000100     : 0);
        /*      ((l &   IUCLC) ? 0x00000200     : 0) */
        r |=    ((l &    IXON) ? 0x00000400     : 0);
        r |=    ((l &   IXANY) ? 0x00000800     : 0);
        r |=    ((l &   IXOFF) ? 0x00001000     : 0);
        r |=    ((l & IMAXBEL) ? 0x00002000     : 0);
        st->c_iflag = r;

        l = bt->c_oflag;
        r =     ((l &   OPOST) ? 0x00000001     : 0);
        /*      ((l &   OLCUC) ? 0x00000002     : 0) */
        r |=    ((l &   ONLCR) ? 0x00000004     : 0);
        /*      ((l &   OCRNL) ? 0x00000008     : 0) */
        /*      ((l &   ONOCR) ? 0x00000010     : 0) */
        /*      ((l &  ONLRET) ? 0x00000020     : 0) */
        /*      ((l &   OFILL) ? 0x00000040     : 0) */
        /*      ((l &   OFDEL) ? 0x00000080     : 0) */
        /*      ((l &   NLDLY) ? 0x00000100     : 0) */
        /*      ((l &     NL1) ? 0x00000100     : 0) */
        /*      ((l &   CRDLY) ? 0x00000600     : 0) */
        /*      ((l &     CR1) ? 0x00000200     : 0) */
        /*      ((l &     CR2) ? 0x00000400     : 0) */
        /*      ((l &     CR3) ? 0x00000600     : 0) */
        /*      ((l &  TABDLY) ? 0x00001800     : 0) */
        /*      ((l &    TAB1) ? 0x00000800     : 0) */
        /*      ((l &    TAB2) ? 0x00001000     : 0) */
        r |=    ((l &  OXTABS) ? 0x00001800     : 0);
        /*      ((l &   BSDLY) ? 0x00002000     : 0) */
        /*      ((l &     BS1) ? 0x00002000     : 0) */
        /*      ((l &   VTDLY) ? 0x00004000     : 0) */
        /*      ((l &     VT1) ? 0x00004000     : 0) */
        /*      ((l &   FFDLY) ? 0x00008000     : 0) */
        /*      ((l &     FF1) ? 0x00008000     : 0) */
        /*      ((l & PAGEOUT) ? 0x00010000     : 0) */
        /*      ((l &    WRAP) ? 0x00020000     : 0) */
        st->c_oflag = r;

        l = bt->c_cflag;
        switch (l & CSIZE) {
        case CS5:
                r = 0;
                break;
        case CS6:
                r = 0x00000010;
                break;
        case CS7:
                r = 0x00000020;
                break;
        case CS8:
                r = 0x00000030;
                break;
        }
        r |=    ((l &  CSTOPB) ? 0x00000040     : 0);
        r |=    ((l &   CREAD) ? 0x00000080     : 0);
        r |=    ((l &  PARENB) ? 0x00000100     : 0);
        r |=    ((l &  PARODD) ? 0x00000200     : 0);
        r |=    ((l &   HUPCL) ? 0x00000400     : 0);
        r |=    ((l &  CLOCAL) ? 0x00000800     : 0);
        /*      ((l &   LOBLK) ? 0x00001000     : 0) */
        r |=    ((l & (CRTS_IFLOW|CCTS_OFLOW)) ? 0x80000000 : 0);
        st->c_cflag = r;

        l = bt->c_lflag;
        r =     ((l &    ISIG) ? 0x00000001     : 0);
        r |=    ((l &  ICANON) ? 0x00000002     : 0);
        /*      ((l &   XCASE) ? 0x00000004     : 0) */
        r |=    ((l &    ECHO) ? 0x00000008     : 0);
        r |=    ((l &   ECHOE) ? 0x00000010     : 0);
        r |=    ((l &   ECHOK) ? 0x00000020     : 0);
        r |=    ((l &  ECHONL) ? 0x00000040     : 0);
        r |=    ((l &  NOFLSH) ? 0x00000080     : 0);
        r |=    ((l &  TOSTOP) ? 0x00000100     : 0);
        r |=    ((l & ECHOCTL) ? 0x00000200     : 0);
        r |=    ((l & ECHOPRT) ? 0x00000400     : 0);
        r |=    ((l &  ECHOKE) ? 0x00000800     : 0);
        /*      ((l & DEFECHO) ? 0x00001000     : 0) */
        r |=    ((l &  FLUSHO) ? 0x00002000     : 0);
        r |=    ((l &  PENDIN) ? 0x00004000     : 0);
        st->c_lflag = r;

        speed = ttspeedtab(bt->c_ospeed, sptab);
        if (speed != -1)
            st->c_cflag |= speed;

        st->c_cc[0] = NATIVE_TO_EMUL_CC(bt->c_cc[VINTR]);
        st->c_cc[1] = NATIVE_TO_EMUL_CC(bt->c_cc[VQUIT]);
        st->c_cc[2] = NATIVE_TO_EMUL_CC(bt->c_cc[VERASE]);
        st->c_cc[3] = NATIVE_TO_EMUL_CC(bt->c_cc[VKILL]);
        st->c_cc[4] = NATIVE_TO_EMUL_CC(bt->c_cc[VEOF]);
        st->c_cc[5] = NATIVE_TO_EMUL_CC(bt->c_cc[VEOL]);
        st->c_cc[6] = NATIVE_TO_EMUL_CC(bt->c_cc[VEOL2]);

        /* XXX ultrix has a VSWTCH.  NetBSD does not. */
#ifdef notdef
        st->c_cc[7] = NATIVE_TO_EMUL_CC(bt->c_cc[VSWTCH]);
#else
        st->c_cc[7] = 0;
#endif
        st->c_cc[10] = NATIVE_TO_EMUL_CC(bt->c_cc[VSTART]);
        st->c_cc[11] = NATIVE_TO_EMUL_CC(bt->c_cc[VSTOP]);
        st->c_cc[12]= NATIVE_TO_EMUL_CC(bt->c_cc[VSUSP]);
        st->c_cc[13]= NATIVE_TO_EMUL_CC(bt->c_cc[VDSUSP]);
        st->c_cc[14]= NATIVE_TO_EMUL_CC(bt->c_cc[VREPRINT]);
        st->c_cc[15]= NATIVE_TO_EMUL_CC(bt->c_cc[VDISCARD]);
        st->c_cc[16]= NATIVE_TO_EMUL_CC(bt->c_cc[VWERASE]);
        st->c_cc[17]= NATIVE_TO_EMUL_CC(bt->c_cc[VLNEXT]);
        st->c_cc[18]= NATIVE_TO_EMUL_CC(bt->c_cc[VSTATUS]);

#ifdef COMPAT_ULTRIX
        st->c_cc[8]= NATIVE_TO_EMUL_CC(bt->c_cc[VMIN]);
        st->c_cc[9]= NATIVE_TO_EMUL_CC(bt->c_cc[VTIME]);
#else
        if (!(bt->c_lflag & ICANON)) {
                /* SunOS stores VMIN/VTIME in VEOF/VEOL (if ICANON is off) */
                st->c_cc[4] = bt->c_cc[VMIN];
                st->c_cc[5] = bt->c_cc[VTIME];
        }
#endif

#ifdef COMPAT_SUNOS
        st->c_line = 0; /* 4.3bsd "old" line discipline */
#else
        st->c_line = 2; /* 4.3bsd "new" line discipline, Ultrix default. */
#endif
}

#define TERMIO_NCC 10   /* ultrix termio NCC is 10 */

/*
 * Convert emulated struct termios to termio(?)
 */
static void
stios2stio(struct emul_termios *ts, struct emul_termio *t)
{

        memset(t, 0, sizeof(*t));
        t->c_iflag = ts->c_iflag;
        t->c_oflag = ts->c_oflag;
        t->c_cflag = ts->c_cflag;
        t->c_lflag = ts->c_lflag;
        t->c_line  = ts->c_line;
        memcpy(t->c_cc, ts->c_cc, TERMIO_NCC);
}

/*
 * Convert the other way
 */
static void
stio2stios(struct emul_termio *t, struct emul_termios *ts)
{

        memset(ts, 0, sizeof(*t));
        ts->c_iflag = t->c_iflag;
        ts->c_oflag = t->c_oflag;
        ts->c_cflag = t->c_cflag;
        ts->c_lflag = t->c_lflag;
        ts->c_line  = t->c_line;

        /* don't touch the upper fields! */
        memcpy(ts->c_cc, t->c_cc, TERMIO_NCC);
}

static int
ultrix_do_ioctl(int fd, int cmd, void *arg, struct lwp *l)
{
        file_t *fp;
        int error;

        if ((fp = fd_getfile(fd)) == NULL)
                return EBADF;

        if ((fp->f_flag & (FREAD|FWRITE)) == 0)
                error = EBADF;
        else
                error = fp->f_ops->fo_ioctl(fp, cmd, arg);
        fd_putfile(fd);
        return error;
}

int
ultrix_sys_ioctl(struct lwp *l, const struct ultrix_sys_ioctl_args *uap,
    register_t *retval)
{
        struct sys_ioctl_args ap;
        int error;

        SCARG(&ap, fd) = SCARG(uap, fd);
        SCARG(&ap, data) = SCARG(uap, data);
        SCARG(&ap, com) = SCARG(uap, com);
        switch (SCARG(&ap, com)) {
        case _IOR('t', 0, int):
                SCARG(&ap, com) = TIOCGETD;
                break;
        case _IOW('t', 1, int):
            {
                int disc;

                error = copyin(SCARG(&ap, data), &disc, sizeof disc);
                if (error != 0)
                        return error;

                /* map SunOS NTTYDISC into our termios discipline */
                if (disc == 2)
                        disc = 0;
                /* all other disciplines are not supported by NetBSD */
                if (disc)
                        return ENXIO;

                return ultrix_do_ioctl(SCARG(&ap, fd), TIOCSETD, &disc, l);
            }
        case _IOW('t', 101, int):       /* sun SUNOS_TIOCSSOFTCAR */
            {
                int x;  /* unused */

                return copyin(SCARG(&ap, data), &x, sizeof x);
            }
        case _IOR('t', 100, int):       /* sun SUNOS_TIOCSSOFTCAR */
            {
                int x = 0;

                return copyout(&x, SCARG(&ap, data), sizeof x);
            }
        case _IO('t', 36):              /* sun TIOCCONS, no parameters */
            {
                int on = 1;
                return ultrix_do_ioctl(SCARG(&ap, fd), TIOCCONS, &on, l);
            }
        case _IOW('t', 37, struct sunos_ttysize):
            {
                struct winsize ws;
                struct sunos_ttysize ss;

                error = ultrix_do_ioctl(SCARG(&ap, fd), TIOCGWINSZ, &ws, l);
                if (error != 0)
                        return error;

                if ((error = copyin(SCARG(&ap, data), &ss, sizeof(ss))) != 0)
                        return error;

                ws.ws_row = ss.ts_row;
                ws.ws_col = ss.ts_col;

                return ultrix_do_ioctl(SCARG(&ap, fd), TIOCSWINSZ, &ws, l);
            }
        case _IOW('t', 38, struct sunos_ttysize):
            {
                struct winsize ws;
                struct sunos_ttysize ss;

                error = ultrix_do_ioctl(SCARG(&ap, fd), TIOCGWINSZ, &ws, l);
                if (error != 0)
                        return error;

                memset(&ss, 0, sizeof(ss));
                ss.ts_row = ws.ws_row;
                ss.ts_col = ws.ws_col;

                return copyout(&ss, SCARG(&ap, data), sizeof(ss));
            }
        case _IOW('t', 118, int):
                SCARG(&ap, com) = TIOCSPGRP;
                break;
        case _IOR('t', 119, int):
                SCARG(&ap, com) = TIOCGPGRP;
                break;

        /* Emulate termio or termios tcget() */
        case ULTRIX_TCGETA:
        case ULTRIX_TCGETS:
            {
                struct termios bts;
                struct ultrix_termios sts;
                struct ultrix_termio st;

                error = ultrix_do_ioctl(SCARG(&ap, fd), TIOCGETA, &bts, l);
                if (error != 0)
                        return error;

                btios2stios (&bts, &sts);
                if (SCARG(&ap, com) == ULTRIX_TCGETA) {
                        stios2stio (&sts, &st);
                        return copyout(&st, SCARG(&ap, data), sizeof(st));
                } else
                        return copyout(&sts, SCARG(&ap, data), sizeof(sts));
                /*NOTREACHED*/
            }
        /* Emulate termio tcset() */
        case ULTRIX_TCSETA:
        case ULTRIX_TCSETAW:
        case ULTRIX_TCSETAF:
            {
                struct termios bts;
                struct ultrix_termios sts;
                struct ultrix_termio st;
                int result;

                if ((error = copyin(SCARG(&ap, data), &st, sizeof(st))) != 0)
                        return error;

                /* get full BSD termios so we don't lose information */
                error = ultrix_do_ioctl(SCARG(&ap, fd), TIOCGETA, &bts, l);
                if (error != 0)
                        return error;

                /*
                 * convert to sun termios, copy in information from
                 * termio, and convert back, then set new values.
                 */
                btios2stios(&bts, &sts);
                stio2stios(&st, &sts);
                stios2btios(&sts, &bts);

                /*
                 * map ioctl code: ultrix tcsets are numbered in reverse order
                 */
#ifdef notyet
                return ultrix_do_ioctl(SCARG(&ap, fd),
                    ULTRIX_TCSETA - SCARG(&ap, com) + TIOCSETA, &bts, l);
#else
                result = ultrix_do_ioctl(SCARG(&ap, fd),
                    ULTRIX_TCSETA - SCARG(&ap, com) + TIOCSETA, &bts, l);
                printf("ultrix TCSETA %lx returns %d\n",
                    ULTRIX_TCSETA - SCARG(&ap, com), result);
                return result;
#endif

            }
        /* Emulate termios tcset() */
        case ULTRIX_TCSETS:
        case ULTRIX_TCSETSW:
        case ULTRIX_TCSETSF:
            {
                struct termios bts;
                struct ultrix_termios sts;

                error = copyin(SCARG(&ap, data), &sts, sizeof(sts));
                if (error != 0)
                        return error;
                stios2btios (&sts, &bts);
                return ultrix_do_ioctl(SCARG(&ap, fd),
                    ULTRIX_TCSETS - SCARG(&ap, com) + TIOCSETA, &bts, l);
            }
/*
 * Pseudo-tty ioctl translations.
 */
        case _IOW('t', 32, int): {      /* TIOCTCNTL */
                int on;

                error = copyin(SCARG(&ap, data), &on, sizeof(on));
                if (error != 0)
                        return error;
                return ultrix_do_ioctl(SCARG(&ap, fd), TIOCUCNTL, &on, l);
        }
        case _IOW('t', 33, int): {      /* TIOCSIGNAL */
                int sig;

                error = copyin(SCARG(&ap, data), &sig, sizeof(sig));
                if (error != 0)
                        return error;
                return ultrix_do_ioctl(SCARG(&ap, fd), TIOCSIG, &sig, l);
        }

/*
 * Socket ioctl translations.
 */
#define IN_TYPE(a, type_t) { \
        type_t localbuf; \
        if ((error = copyin(SCARG(&ap, data), \
                                &localbuf, sizeof(type_t))) != 0) \
                return error; \
        return ultrix_do_ioctl(SCARG(&ap, fd), a, &localbuf, l); \
}

#define INOUT_TYPE(a, type_t) { \
        type_t localbuf; \
        if ((error = copyin(SCARG(&ap, data), &localbuf,        \
                             sizeof(type_t))) != 0) \
                return error; \
        if ((error = ultrix_do_ioctl(SCARG(&ap, fd), a, &localbuf, l)) != 0) \
                return error; \
        return copyout(&localbuf, SCARG(&ap, data), sizeof(type_t)); \
}


#define IFREQ_IN(a) { \
        struct oifreq ifreq; \
        if ((error = copyin(SCARG(&ap, data), &ifreq, sizeof(ifreq))) != 0) \
                return error; \
        return ultrix_do_ioctl(SCARG(&ap, fd), a, &ifreq, l); \
}

#define IFREQ_INOUT(a) { \
        struct oifreq ifreq; \
        if ((error = copyin(SCARG(&ap, data), &ifreq, sizeof(ifreq))) != 0) \
                return error; \
        if ((error = ultrix_do_ioctl(SCARG(&ap, fd), a, &ifreq, l)) != 0) \
                return error; \
        return copyout(&ifreq, SCARG(&ap, data), sizeof(ifreq)); \
}

        case _IOW('i', 12, struct oifreq):
                /* SIOCSIFADDR */
                break;

        case _IOWR('i', 13, struct oifreq):
                IFREQ_INOUT(OOSIOCGIFADDR);

        case _IOW('i', 14, struct oifreq):
                /* SIOCSIFDSTADDR */
                break;

        case _IOWR('i', 15, struct oifreq):
                IFREQ_INOUT(OOSIOCGIFDSTADDR);

        case _IOW('i', 16, struct oifreq):
                /* SIOCSIFFLAGS */
                break;

        case _IOWR('i', 17, struct oifreq):
                /* SIOCGIFFLAGS */
                break;

        case _IOWR('i', 18, struct oifreq):
                IFREQ_INOUT(SIOCGIFBRDADDR);

        case _IOWR('i', 19, struct oifreq):
                IFREQ_INOUT(SIOCSIFBRDADDR);

        case _IOWR('i', 20, struct ifconf):     /* SIOCGIFCONF */
            {
                struct ifconf ifconfarg;

                /*
                 * XXX: two more problems
                 * 1. Our sockaddr's are variable length, not always
                 *    sizeof(sockaddr)
                 * 2. This returns a name per protocol, ie. it returns two
                 *    "lo0"'s
                 */
                error = copyin(SCARG(&ap, data), &ifconfarg,
                    sizeof(ifconfarg));
                if (error)
                        return error;

                error = ultrix_do_ioctl(SCARG(&ap, fd), OSIOCGIFCONF,
                    &ifconfarg, l);
                if (error)
                        return error;

                return copyout(&ifconfarg, SCARG(&ap, data),
                    sizeof(ifconfarg));
            }


        case _IOWR('i', 21, struct oifreq):
                IFREQ_INOUT(OOSIOCGIFNETMASK);

        case _IOW('i', 22, struct oifreq):
                IFREQ_IN(SIOCSIFNETMASK);

        /* 23: _IOWR('i', 23, struct oifreq):  Ultrix SIOCSPHYADDR */
        /* 24: _IOWR('i', 24, struct oifreq):  Ultrix SIOCSADDMULTI */
        /* 25: _IOWR('i', 25, struct oifreq):  Ultrix SIOCSDELMULTI */

        case _IOW('i',  26, struct oifreq):     /* SIOCSIFRDCTRS? */
        case _IOWR('i', 27, struct oifreq):     /* SIOCGIFZCTRS? */
        case _IOWR('i', 28, struct oifreq):     /* read physaddr ? */
                return EOPNOTSUPP;


        case _IOW('i', 30, struct arpreq):
                /* SIOCSARP */
                break;

        case _IOWR('i', 31, struct arpreq):
                /* SIOCGARP */
                break;

        case _IOW('i', 32, struct arpreq):
                /* SIOCDARP */
                break;

        case _IOW('i', 40, struct oifreq):      /* SIOCARPREQ */
                return EOPNOTSUPP;

        case _IOWR('i', 41, struct oifreq):
                IFREQ_INOUT(SIOCGIFMETRIC);

        case _IOWR('i', 42, struct oifreq):
                IFREQ_IN(SIOCSIFMETRIC);

        case _IOW('i', 44, struct oifreq):      /* SIOCSETSYNC */
        case _IOWR('i', 45, struct oifreq):     /* SIOCGETSYNC */
        case _IOWR('i', 46, struct oifreq):     /* SIOCSDSTATS */
        case _IOWR('i', 47, struct oifreq):     /* SIOCSESTATS */
        case _IOW('i', 48, int):                /* SIOCSPROMISC */
                return EOPNOTSUPP;

        /* emulate for vat, vic tools */
        case _IOW('i', 49, struct oifreq):      /* SIOCADDMULTI */
        case _IOW('i', 50, struct oifreq):      /* SIOCDELMULTI */
                return EOPNOTSUPP;

        }
        return sys_ioctl(l, &ap, retval);
}