Initial Contribution
diff --git a/libc/include/sys/ioctl_compat.h b/libc/include/sys/ioctl_compat.h
new file mode 100644
index 0000000..d79b67a
--- /dev/null
+++ b/libc/include/sys/ioctl_compat.h
@@ -0,0 +1,168 @@
+/*	$NetBSD: ioctl_compat.h,v 1.15 2005/12/03 17:10:46 christos Exp $	*/
+
+/*
+ * Copyright (c) 1990, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ * (c) UNIX System Laboratories, Inc.
+ * All or some portions of this file are derived from material licensed
+ * to the University of California by American Telephone and Telegraph
+ * Co. or Unix System Laboratories, Inc. and are reproduced herein with
+ * the permission of UNIX System Laboratories, Inc.
+ *
+ * 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.
+ *
+ *	@(#)ioctl_compat.h	8.4 (Berkeley) 1/21/94
+ */
+
+#ifndef _SYS_IOCTL_COMPAT_H_
+#define	_SYS_IOCTL_COMPAT_H_
+
+//#include <sys/ttychars.h>
+//#include <sys/ttydev.h>
+
+struct tchars {
+	char	t_intrc;	/* interrupt */
+	char	t_quitc;	/* quit */
+	char	t_startc;	/* start output */
+	char	t_stopc;	/* stop output */
+	char	t_eofc;		/* end-of-file */
+	char	t_brkc;		/* input delimiter (like nl) */
+};
+
+struct ltchars {
+	char	t_suspc;	/* stop process signal */
+	char	t_dsuspc;	/* delayed stop process signal */
+	char	t_rprntc;	/* reprint line */
+	char	t_flushc;	/* flush output (toggles) */
+	char	t_werasc;	/* word erase */
+	char	t_lnextc;	/* literal next character */
+};
+
+/*
+ * Structure for TIOCGETP and TIOCSETP ioctls.
+ */
+#ifndef _SGTTYB_
+#define	_SGTTYB_
+struct sgttyb {
+	char	sg_ispeed;		/* input speed */
+	char	sg_ospeed;		/* output speed */
+	char	sg_erase;		/* erase character */
+	char	sg_kill;		/* kill character */
+	short	sg_flags;		/* mode flags */
+};
+#endif
+
+#ifdef USE_OLD_TTY
+# undef  TIOCGETD
+# define TIOCGETD	_IOR('t', 0, int)	/* get line discipline */
+# undef  TIOCSETD
+# define TIOCSETD	_IOW('t', 1, int)	/* set line discipline */
+#else
+# define OTIOCGETD	_IOR('t', 0, int)	/* get line discipline */
+# define OTIOCSETD	_IOW('t', 1, int)	/* set line discipline */
+#endif
+#define	TIOCHPCL	_IO('t', 2)		/* hang up on last close */
+#define	TIOCGETP	_IOR('t', 8,struct sgttyb)/* get parameters -- gtty */
+#define	TIOCSETP	_IOW('t', 9,struct sgttyb)/* set parameters -- stty */
+#define	TIOCSETN	_IOW('t',10,struct sgttyb)/* as above, but no flushtty*/
+#define	TIOCSETC	_IOW('t',17,struct tchars)/* set special characters */
+#define	TIOCGETC	_IOR('t',18,struct tchars)/* get special characters */
+#if 0
+/* BUG: a bunch of these conflict with #defines in asm/termbits.h */
+#define		TANDEM		0x00000001	/* send stopc on out q full */
+#define		CBREAK		0x00000002	/* half-cooked mode */
+#define		LCASE		0x00000004	/* simulate lower case */
+#define		ECHO		0x00000008	/* enable echoing */
+#define		CRMOD		0x00000010	/* map \r to \r\n on output */
+#define		RAW		0x00000020	/* no i/o processing */
+#define		ODDP		0x00000040	/* get/send odd parity */
+#define		EVENP		0x00000080	/* get/send even parity */
+#define		ANYP		0x000000c0	/* get any parity/send none */
+#define		NLDELAY		0x00000300	/* \n delay */
+#define			NL0	0x00000000
+#define			NL1	0x00000100	/* tty 37 */
+#define			NL2	0x00000200	/* vt05 */
+#define			NL3	0x00000300
+#define		TBDELAY		0x00000c00	/* horizontal tab delay */
+#define			TAB0	0x00000000
+#define			TAB1	0x00000400	/* tty 37 */
+#define			TAB2	0x00000800
+#define		XTABS		0x00000c00	/* expand tabs on output */
+#define		CRDELAY		0x00003000	/* \r delay */
+#define			CR0	0x00000000
+#define			CR1	0x00001000	/* tn 300 */
+#define			CR2	0x00002000	/* tty 37 */
+#define			CR3	0x00003000	/* concept 100 */
+#define		VTDELAY		0x00004000	/* vertical tab delay */
+#define			FF0	0x00000000
+#define			FF1	0x00004000	/* tty 37 */
+#define		BSDELAY		0x00008000	/* \b delay */
+#define			BS0	0x00000000
+#define			BS1	0x00008000
+#define		ALLDELAY	(NLDELAY|TBDELAY|CRDELAY|VTDELAY|BSDELAY)
+#define		CRTBS		0x00010000	/* do backspacing for crt */
+#define		PRTERA		0x00020000	/* \ ... / erase */
+#define		CRTERA		0x00040000	/* " \b " to wipe out char */
+#define		TILDE		0x00080000	/* hazeltine tilde kludge */
+#define		MDMBUF		0x00100000	/* DTR/DCD hardware flow control */
+#define		LITOUT		0x00200000	/* literal output */
+#define		TOSTOP		0x00400000	/* stop background jobs on output */
+#define		FLUSHO		0x00800000	/* output being flushed (state) */
+#define		NOHANG		0x01000000	/* (no-op) was no SIGHUP on carrier drop */
+#define		L001000		0x02000000
+#define		CRTKIL		0x04000000	/* kill line with " \b " */
+#define		PASS8		0x08000000
+#define		CTLECH		0x10000000	/* echo control chars as ^X */
+#define		PENDIN		0x20000000	/* re-echo input buffer at next read */
+#define		DECCTQ		0x40000000	/* only ^Q starts after ^S */
+#define		NOFLSH		0x80000000	/* don't flush output on signal */
+#endif
+#define	TIOCLBIS	_IOW('t', 127, int)	/* bis local mode bits */
+#define	TIOCLBIC	_IOW('t', 126, int)	/* bic local mode bits */
+#define	TIOCLSET	_IOW('t', 125, int)	/* set entire local mode word */
+#define	TIOCLGET	_IOR('t', 124, int)	/* get local modes */
+#define		LCRTBS		(CRTBS>>16)
+#define		LPRTERA		(PRTERA>>16)
+#define		LCRTERA		(CRTERA>>16)
+#define		LTILDE		(TILDE>>16)
+#define		LMDMBUF		(MDMBUF>>16)
+#define		LLITOUT		(LITOUT>>16)
+#define		LTOSTOP		(TOSTOP>>16)
+#define		LFLUSHO		(FLUSHO>>16)
+#define		LNOHANG		(NOHANG>>16)
+#define		LCRTKIL		(CRTKIL>>16)
+#define		LPASS8		(PASS8>>16)
+#define		LCTLECH		(CTLECH>>16)
+#define		LPENDIN		(PENDIN>>16)
+#define		LDECCTQ		(DECCTQ>>16)
+#define		LNOFLSH		(NOFLSH>>16)
+#define	TIOCSLTC	_IOW('t',117,struct ltchars)/* set local special chars*/
+#define	TIOCGLTC	_IOR('t',116,struct ltchars)/* get local special chars*/
+#define OTIOCCONS	_IO('t', 98)	/* for hp300 -- sans int arg */
+#define	OTTYDISC	0
+#define	NETLDISC	1
+#define	NTTYDISC	2
+
+#endif /* !_SYS_IOCTL_COMPAT_H_ */