Emulator KLD for SysVR4 executables grabbed from NetBSD.

See http://www.freebsd.org/~newton/freebsd-svr4 for limitations,
capabilities, history and TO-DO list.

1 files changed, 381 insertions, 0 deletions

diff --git a/sys/compat/svr4/svr4_ttold.c b/sys/compat/svr4/svr4_ttold.c
new file mode 100644
index 0000000..691f1d6
--- /dev/null
+++ b/sys/compat/svr4/svr4_ttold.c
@@ -0,0 +1,381 @@
+/*
+ * Copyright (c) 1998 Mark Newton
+ * Copyright (c) 1994 Christos Zoulas
+ * 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. 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.
+ */
+
+#include <sys/param.h>
+#include <sys/proc.h>
+#include <sys/systm.h>
+#include <sys/file.h>
+#include <sys/filedesc.h>
+#include <sys/fcntl.h>
+#include <sys/ioctl_compat.h>
+#include <sys/unistd.h>
+#include <sys/termios.h>
+#include <sys/tty.h>
+#include <sys/socket.h>
+#include <sys/mount.h>
+#include <net/if.h>
+#include <sys/malloc.h>
+
+#include <sys/sysproto.h>
+
+#include <svr4/svr4_types.h>
+#include <svr4/svr4_util.h>
+#include <svr4/svr4_signal.h>
+#include <svr4/svr4_proto.h>
+#include <svr4/svr4_stropts.h>
+#include <svr4/svr4_ttold.h>
+#include <svr4/svr4_ioctl.h>
+
+
+static void svr4_tchars_to_bsd_tchars __P((const struct svr4_tchars *st,
+					   struct tchars *bt));
+static void bsd_tchars_to_svr4_tchars __P((const struct tchars *bt,
+					   struct svr4_tchars *st));
+static void svr4_sgttyb_to_bsd_sgttyb __P((const struct svr4_sgttyb *ss,
+					   struct sgttyb *bs));
+static void bsd_sgttyb_to_svr4_sgttyb __P((const struct sgttyb *bs,
+					   struct svr4_sgttyb *ss));
+static void svr4_ltchars_to_bsd_ltchars __P((const struct svr4_ltchars *sl,
+					     struct ltchars *bl));
+static void bsd_ltchars_to_svr4_ltchars __P((const struct ltchars *bl,
+					     struct svr4_ltchars *sl));
+
+#ifdef DEBUG_SVR4
+static void print_svr4_sgttyb __P((const char *, struct svr4_sgttyb *));
+static void print_svr4_tchars __P((const char *, struct svr4_tchars *));
+static void print_svr4_ltchars __P((const char *, struct svr4_ltchars *));
+
+static void
+print_svr4_sgttyb(str, ss)
+	const char *str;
+	struct svr4_sgttyb *ss;
+{
+
+	uprintf("%s\nispeed=%o ospeed=%o ", str, ss->sg_ispeed, ss->sg_ospeed);
+	uprintf("erase=%o kill=%o flags=%o\n", ss->sg_erase, ss->sg_kill,
+	    ss->sg_flags);
+}
+
+static void
+print_svr4_tchars(str, st)
+	const char *str;
+	struct svr4_tchars *st;
+{
+	uprintf("%s\nintrc=%o quitc=%o ", str, st->t_intrc, st->t_quitc);
+	uprintf("startc=%o stopc=%o eofc=%o brkc=%o\n", st->t_startc,
+	    st->t_stopc, st->t_eofc, st->t_brkc);
+}
+
+static void
+print_svr4_ltchars(str, sl)
+	const char *str;
+	struct svr4_ltchars *sl;
+{
+	uprintf("%s\nsuspc=%o dsuspc=%o ", str, sl->t_suspc, sl->t_dsuspc);
+	uprintf("rprntc=%o flushc=%o werasc=%o lnextc=%o\n", sl->t_rprntc,
+	    sl->t_flushc, sl->t_werasc, sl->t_lnextc);
+}
+#endif /* DEBUG_SVR4 */
+
+static void
+svr4_tchars_to_bsd_tchars(st, bt)
+	const struct svr4_tchars	*st;
+	struct tchars			*bt;
+{
+	bt->t_intrc  = st->t_intrc;
+	bt->t_quitc  = st->t_quitc;
+	bt->t_startc = st->t_startc;
+	bt->t_stopc  = st->t_stopc;
+	bt->t_eofc   = st->t_eofc;
+	bt->t_brkc   = st->t_brkc;
+}
+
+
+static void
+bsd_tchars_to_svr4_tchars(bt, st)
+	const struct tchars	*bt;
+	struct svr4_tchars	*st;
+{
+	st->t_intrc  = bt->t_intrc;
+	st->t_quitc  = bt->t_quitc;
+	st->t_startc = bt->t_startc;
+	st->t_stopc  = bt->t_stopc;
+	st->t_eofc   = bt->t_eofc;
+	st->t_brkc   = bt->t_brkc;
+}
+
+
+static void
+svr4_sgttyb_to_bsd_sgttyb(ss, bs)
+	const struct svr4_sgttyb	*ss;
+	struct sgttyb			*bs;
+{
+	bs->sg_ispeed = ss->sg_ispeed;
+	bs->sg_ospeed = ss->sg_ospeed;
+	bs->sg_erase  =	ss->sg_erase;	
+	bs->sg_kill   = ss->sg_kill;
+	bs->sg_flags  = ss->sg_flags;
+};
+
+
+static void
+bsd_sgttyb_to_svr4_sgttyb(bs, ss)
+	const struct sgttyb	*bs;
+	struct svr4_sgttyb	*ss;
+{
+	ss->sg_ispeed = bs->sg_ispeed;
+	ss->sg_ospeed = bs->sg_ospeed;
+	ss->sg_erase  =	bs->sg_erase;	
+	ss->sg_kill   = bs->sg_kill;
+	ss->sg_flags  = bs->sg_flags;
+}
+
+
+static void
+svr4_ltchars_to_bsd_ltchars(sl, bl)
+	const struct svr4_ltchars	*sl;
+	struct ltchars			*bl;
+{
+	bl->t_suspc  = sl->t_suspc;
+	bl->t_dsuspc = sl->t_dsuspc;
+	bl->t_rprntc = sl->t_rprntc;
+	bl->t_flushc = sl->t_flushc;
+	bl->t_werasc = sl->t_werasc;
+	bl->t_lnextc = sl->t_lnextc;
+}
+
+
+static void
+bsd_ltchars_to_svr4_ltchars(bl, sl)
+	const struct ltchars	*bl;
+	struct svr4_ltchars	*sl;
+{
+	sl->t_suspc  = bl->t_suspc;
+	sl->t_dsuspc = bl->t_dsuspc;
+	sl->t_rprntc = bl->t_rprntc;
+	sl->t_flushc = bl->t_flushc;
+	sl->t_werasc = bl->t_werasc;
+	sl->t_lnextc = bl->t_lnextc;
+}
+
+
+int
+svr4_ttold_ioctl(fp, p, retval, fd, cmd, data)
+	struct file *fp;
+	struct proc *p;
+	register_t *retval;
+	int fd;
+	u_long cmd;
+	caddr_t data;
+{
+	int			error;
+	int (*ctl) __P((struct file *, u_long,  caddr_t, struct proc *)) =
+			fp->f_ops->fo_ioctl;
+
+	*retval = 0;
+
+	switch (cmd) {
+	case SVR4_TIOCGPGRP:
+		{
+			pid_t pid;
+
+			if ((error = (*ctl)(fp, TIOCGPGRP,
+					    (caddr_t) &pid, p)) != 0)
+			    return error;
+
+			DPRINTF(("TIOCGPGRP %d\n", pid));
+
+			if ((error = copyout(&pid, data, sizeof(pid))) != 0)
+				return error;
+
+		}
+
+	case SVR4_TIOCSPGRP:
+		{
+			pid_t pid;
+
+			if ((error = copyin(data, &pid, sizeof(pid))) != 0)
+				return error;
+
+			DPRINTF(("TIOCSPGRP %d\n", pid));
+
+			return (*ctl)(fp, TIOCSPGRP, (caddr_t) &pid, p);
+		}
+
+	case SVR4_TIOCGSID:
+		{
+#if defined(TIOCGSID)
+			pid_t pid;
+			if ((error = (*ctl)(fp, TIOCGSID,
+					    (caddr_t) &pid, p)) != 0)
+				return error;
+
+			DPRINTF(("TIOCGSID %d\n", pid));
+
+			return copyout(&pid, data, sizeof(pid));
+#else
+			uprintf("ioctl(TIOCGSID) for pid %d unsupported\n", p->p_pid);
+			return EINVAL;
+#endif
+		}
+
+	case SVR4_TIOCGETP:
+		{
+			struct sgttyb bs;
+			struct svr4_sgttyb ss;
+
+			error = (*ctl)(fp, TIOCGETP, (caddr_t) &bs, p);
+			if (error)
+				return error;
+
+			bsd_sgttyb_to_svr4_sgttyb(&bs, &ss);
+#ifdef DEBUG_SVR4
+			print_svr4_sgttyb("SVR4_TIOCGETP", &ss);
+#endif /* DEBUG_SVR4 */
+			return copyout(&ss, data, sizeof(ss));
+		}
+
+	case SVR4_TIOCSETP:
+	case SVR4_TIOCSETN:
+		{
+			struct sgttyb bs;
+			struct svr4_sgttyb ss;
+
+			if ((error = copyin(data, &ss, sizeof(ss))) != 0)
+				return error;
+
+			svr4_sgttyb_to_bsd_sgttyb(&ss, &bs);
+#ifdef DEBUG_SVR4
+			print_svr4_sgttyb("SVR4_TIOCSET{P,N}", &ss);
+#endif /* DEBUG_SVR4 */
+			cmd = (cmd == SVR4_TIOCSETP) ? TIOCSETP : TIOCSETN;
+			return (*ctl)(fp, cmd, (caddr_t) &bs, p);
+		}
+
+	case SVR4_TIOCGETC:
+		{
+			struct tchars bt;
+			struct svr4_tchars st;
+
+			error = (*ctl)(fp, TIOCGETC, (caddr_t) &bt, p);
+			if (error)
+				return error;
+
+			bsd_tchars_to_svr4_tchars(&bt, &st);
+#ifdef DEBUG_SVR4
+			print_svr4_tchars("SVR4_TIOCGETC", &st);
+#endif /* DEBUG_SVR4 */
+			return copyout(&st, data, sizeof(st));
+		}
+
+	case SVR4_TIOCSETC:
+		{
+			struct tchars bt;
+			struct svr4_tchars st;
+
+			if ((error = copyin(data, &st, sizeof(st))) != 0)
+				return error;
+
+			svr4_tchars_to_bsd_tchars(&st, &bt);
+#ifdef DEBUG_SVR4
+			print_svr4_tchars("SVR4_TIOCSETC", &st);
+#endif /* DEBUG_SVR4 */
+			return (*ctl)(fp, TIOCSETC, (caddr_t) &bt, p);
+		}
+
+	case SVR4_TIOCGLTC:
+		{
+			struct ltchars bl;
+			struct svr4_ltchars sl;
+
+			error = (*ctl)(fp, TIOCGLTC, (caddr_t) &bl, p);
+			if (error)
+				return error;
+
+			bsd_ltchars_to_svr4_ltchars(&bl, &sl);
+#ifdef DEBUG_SVR4
+			print_svr4_ltchars("SVR4_TIOCGLTC", &sl);
+#endif /* DEBUG_SVR4 */
+			return copyout(&sl, data, sizeof(sl));
+		}
+
+	case SVR4_TIOCSLTC:
+		{
+			struct ltchars bl;
+			struct svr4_ltchars sl;
+
+			if ((error = copyin(data, &sl, sizeof(sl))) != 0)
+				return error;
+
+			svr4_ltchars_to_bsd_ltchars(&sl, &bl);
+#ifdef DEBUG_SVR4
+			print_svr4_ltchars("SVR4_TIOCSLTC", &sl);
+#endif /* DEBUG_SVR4 */
+			return (*ctl)(fp, TIOCSLTC, (caddr_t) &bl, p);
+		}
+
+	case SVR4_TIOCLGET:
+		{
+			int flags;
+			if ((error = (*ctl)(fp, TIOCLGET,
+					    (caddr_t) &flags, p)) != 0)
+				return error;
+			DPRINTF(("SVR4_TIOCLGET %o\n", flags));
+			return copyout(&flags, data, sizeof(flags));
+		}
+
+	case SVR4_TIOCLSET:
+	case SVR4_TIOCLBIS:
+	case SVR4_TIOCLBIC:
+		{
+			int flags;
+
+			if ((error = copyin(data, &flags, sizeof(flags))) != 0)
+				return error;
+
+			switch (cmd) {
+			case SVR4_TIOCLSET:
+				cmd = TIOCLSET;
+				break;
+			case SVR4_TIOCLBIS:
+				cmd = TIOCLBIS;
+				break;
+			case SVR4_TIOCLBIC:
+				cmd = TIOCLBIC;
+				break;
+			}
+
+			DPRINTF(("SVR4_TIOCL{SET,BIS,BIC} %o\n", flags));
+			return (*ctl)(fp, cmd, (caddr_t) &flags, p);
+		}
+
+	default:
+		DPRINTF(("Unknown svr4 ttold %lx\n", cmd));
+		return 0;	/* ENOSYS really */
+	}
+}