Initial revision
diff --git a/ioctl.c b/ioctl.c
new file mode 100644
index 0000000..65d3f52
--- /dev/null
+++ b/ioctl.c
@@ -0,0 +1,171 @@
+/*
+ * Copyright (c) 1991, 1992 Paul Kranenburg <pk@cs.few.eur.nl>
+ * Copyright (c) 1993 Branko Lankester <branko@hacktic.nl>
+ * Copyright (c) 1993, 1994, 1995, 1996 Rick Sladkey <jrs@world.std.com>
+ * 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.
+ *
+ *	$Id$
+ */
+
+#include "defs.h"
+
+struct ioctlent ioctlent0[] = {
+/*
+ * `ioctlent.h' may be generated from `ioctlent.raw' by the auxiliary
+ * program `ioctlsort', such that the list is sorted by the `code' field.
+ * This has the side-effect of resolving the _IO.. macros into
+ * plain integers, eliminating the need to include here everything
+ * in "/usr/include" .
+ */
+#include "ioctlent.h"
+};
+
+int nioctlents0 = sizeof ioctlent0 / sizeof ioctlent0[0];
+
+#if SUPPORTED_PERSONALITIES >= 2
+struct ioctlent ioctlent1[] = {
+#include "ioctlent1.h"
+};
+
+int nioctlents1 = sizeof ioctlent1 / sizeof ioctlent1[0];
+#endif /* SUPPORTED_PERSONALITIES >= 2 */
+
+#if SUPPORTED_PERSONALITIES >= 3
+struct ioctlent ioctlent2[] = {
+#include "ioctlent2.h"
+};
+
+int nioctlents1 = sizeof ioctlent2 / sizeof ioctlent2[0];
+#endif /* SUPPORTED_PERSONALITIES >= 3 */
+
+struct ioctlent *ioctlent;
+int nioctlents;
+
+static int
+compare(a, b)
+const void *a;
+const void *b;
+{
+	unsigned long code1 = ((struct ioctlent *) a)->code;
+	unsigned long code2 = ((struct ioctlent *) b)->code;
+	return (code1 > code2) ? 1 : (code1 < code2) ? -1 : 0;
+}
+
+char *
+ioctl_lookup(code)
+long code;
+{
+	struct ioctlent *iop, ioent;
+
+	ioent.code = code;
+	iop = (struct ioctlent *) bsearch((char *) &ioent, (char *) ioctlent,
+			nioctlents, sizeof(struct ioctlent), compare);
+	return iop ? iop->symbol : NULL;
+}
+
+int
+ioctl_decode(tcp, code, arg)
+struct tcb *tcp;
+long code, arg;
+{
+	switch ((code >> 8) & 0xff) {
+#ifdef LINUX
+#ifdef ALPHA
+	case 'f': case 't': case 'T':
+#else /* !ALPHA */
+	case 0x54:
+#endif /* !ALPHA */
+#else /* !LINUX */
+	case 'f': case 't': case 'T':
+#endif /* !LINUX */
+		return term_ioctl(tcp, code, arg);
+#ifdef LINUX
+	case 0x89:
+#else /* !LINUX */
+	case 'r': case 's': case 'i': case 'p':
+#endif /* !LINUX */
+		return sock_ioctl(tcp, code, arg);
+#ifdef SVR4
+	case 'q':
+		return proc_ioctl(tcp, code, arg);
+#endif /* SVR4 */
+#ifdef HAVE_SYS_STREAM_H
+	case 'S':
+		return stream_ioctl(tcp, code, arg);
+#endif /* HAVE_SYS_STREAM_H */
+	default:
+		break;
+	}
+	return 0;
+}
+
+/*
+ * Registry of ioctl characters, culled from
+ *	@(#)ioccom.h 1.7 89/06/16 SMI; from UCB ioctl.h 7.1 6/4/86
+ *
+ * char	file where defined		notes
+ * ----	------------------		-----
+ *   F	sun/fbio.h
+ *   G	sun/gpio.h
+ *   H	vaxif/if_hy.h
+ *   M	sundev/mcpcmd.h			*overlap*
+ *   M	sys/modem.h			*overlap*
+ *   S	sys/stropts.h
+ *   T	sys/termio.h			-no overlap-
+ *   T	sys/termios.h			-no overlap-
+ *   V	sundev/mdreg.h
+ *   a	vaxuba/adreg.h
+ *   d	sun/dkio.h			-no overlap with sys/des.h-
+ *   d	sys/des.h			(possible overlap)
+ *   d	vax/dkio.h			(possible overlap)
+ *   d	vaxuba/rxreg.h			(possible overlap)
+ *   f	sys/filio.h
+ *   g	sunwindow/win_ioctl.h		-no overlap-
+ *   g	sunwindowdev/winioctl.c		!no manifest constant! -no overlap-
+ *   h	sundev/hrc_common.h
+ *   i	sys/sockio.h			*overlap*
+ *   i	vaxuba/ikreg.h			*overlap*
+ *   k	sundev/kbio.h
+ *   m	sundev/msio.h			(possible overlap)
+ *   m	sundev/msreg.h			(possible overlap)
+ *   m	sys/mtio.h			(possible overlap)
+ *   n	sun/ndio.h
+ *   p	net/nit_buf.h			(possible overlap)
+ *   p	net/nit_if.h			(possible overlap)
+ *   p	net/nit_pf.h			(possible overlap)
+ *   p	sundev/fpareg.h			(possible overlap)
+ *   p	sys/sockio.h			(possible overlap)
+ *   p	vaxuba/psreg.h			(possible overlap)
+ *   q	sun/sqz.h
+ *   r	sys/sockio.h
+ *   s	sys/sockio.h
+ *   t	sys/ttold.h			(possible overlap)
+ *   t	sys/ttycom.h			(possible overlap)
+ *   v	sundev/vuid_event.h		*overlap*
+ *   v	sys/vcmd.h			*overlap*
+ *
+ * End of Registry
+ */
+