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diff --git a/include/mach/sa/sys/termios.h b/include/mach/sa/sys/termios.h
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+++ b/include/mach/sa/sys/termios.h
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+/*
+ * Copyright (c) 1988, 1989, 1993, 1994
+ *	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. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. 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.
+ *
+ *	@(#)termios.h	8.3 (Berkeley) 3/28/94
+ * termios.h,v 1.3 1994/08/02 07:53:46 davidg Exp
+ */
+
+#ifndef _MACH_SA_SYS_TERMIOS_H_
+#define _MACH_SA_SYS_TERMIOS_H_
+
+/* 
+ * Special Control Characters 
+ *
+ * Index into c_cc[] character array.
+ *
+ *	Name	     Subscript	Enabled by 
+ */
+#define	VEOF		0	/* ICANON */
+#define	VEOL		1	/* ICANON */
+#define	VERASE		3	/* ICANON */
+#define VKILL		5	/* ICANON */
+#define VINTR		8	/* ISIG */
+#define VQUIT		9	/* ISIG */
+#define VSUSP		10	/* ISIG */
+#define VSTART		12	/* IXON, IXOFF */
+#define VSTOP		13	/* IXON, IXOFF */
+#define VMIN		16	/* !ICANON */
+#define VTIME		17	/* !ICANON */
+#define	NCCS		20
+
+#define _POSIX_VDISABLE	((unsigned char)'\377')
+
+/*
+ * Input flags - software input processing
+ */
+#define	IGNBRK		0x00000001	/* ignore BREAK condition */
+#define	BRKINT		0x00000002	/* map BREAK to SIGINTR */
+#define	IGNPAR		0x00000004	/* ignore (discard) parity errors */
+#define	PARMRK		0x00000008	/* mark parity and framing errors */
+#define	INPCK		0x00000010	/* enable checking of parity errors */
+#define	ISTRIP		0x00000020	/* strip 8th bit off chars */
+#define	INLCR		0x00000040	/* map NL into CR */
+#define	IGNCR		0x00000080	/* ignore CR */
+#define	ICRNL		0x00000100	/* map CR to NL (ala CRMOD) */
+#define	IXON		0x00000200	/* enable output flow control */
+#define	IXOFF		0x00000400	/* enable input flow control */
+#ifndef _POSIX_SOURCE
+#define	IXANY		0x00000800	/* any char will restart after stop */
+#define IMAXBEL		0x00002000	/* ring bell on input queue full */
+#endif  /*_POSIX_SOURCE */
+
+/*
+ * Output flags - software output processing
+ */
+#define	OPOST		0x00000001	/* enable following output processing */
+
+/*
+ * Control flags - hardware control of terminal
+ */
+#ifndef _POSIX_SOURCE
+#define	CIGNORE		0x00000001	/* ignore control flags */
+#endif
+#define CSIZE		0x00000300	/* character size mask */
+#define     CS5		    0x00000000	    /* 5 bits (pseudo) */
+#define     CS6		    0x00000100	    /* 6 bits */
+#define     CS7		    0x00000200	    /* 7 bits */
+#define     CS8		    0x00000300	    /* 8 bits */
+#define CSTOPB		0x00000400	/* send 2 stop bits */
+#define CREAD		0x00000800	/* enable receiver */
+#define PARENB		0x00001000	/* parity enable */
+#define PARODD		0x00002000	/* odd parity, else even */
+#define HUPCL		0x00004000	/* hang up on last close */
+#define CLOCAL		0x00008000	/* ignore modem status lines */
+
+
+/* 
+ * "Local" flags - dumping ground for other state
+ *
+ * Warning: some flags in this structure begin with
+ * the letter "I" and look like they belong in the
+ * input flag.
+ */
+
+#define	ECHOE		0x00000002	/* visually erase chars */
+#define	ECHOK		0x00000004	/* echo NL after line kill */
+#define ECHO		0x00000008	/* enable echoing */
+#define	ECHONL		0x00000010	/* echo NL even if ECHO is off */
+#define	ISIG		0x00000080	/* enable signals INTR, QUIT, [D]SUSP */
+#define	ICANON		0x00000100	/* canonicalize input lines */
+#define	IEXTEN		0x00000400	/* enable DISCARD and LNEXT */
+#define EXTPROC         0x00000800      /* external processing */
+#define TOSTOP		0x00400000	/* stop background jobs from output */
+#ifndef _POSIX_SOURCE
+#define FLUSHO		0x00800000	/* output being flushed (state) */
+#define	NOKERNINFO	0x02000000	/* no kernel output from VSTATUS */
+#define PENDIN		0x20000000	/* XXX retype pending input (state) */
+#endif  /*_POSIX_SOURCE */
+#define	NOFLSH		0x80000000	/* don't flush after interrupt */
+
+typedef unsigned long	tcflag_t;
+typedef unsigned char	cc_t;
+typedef long		speed_t;
+
+struct termios {
+	tcflag_t	c_iflag;	/* input flags */
+	tcflag_t	c_oflag;	/* output flags */
+	tcflag_t	c_cflag;	/* control flags */
+	tcflag_t	c_lflag;	/* local flags */
+	cc_t		c_cc[NCCS];	/* control chars */
+	long		c_ispeed;	/* input speed */
+	long		c_ospeed;	/* output speed */
+};
+
+/* 
+ * Commands passed to tcsetattr() for setting the termios structure.
+ */
+#define	TCSANOW		0		/* make change immediate */
+#define	TCSADRAIN	1		/* drain output, then change */
+#define	TCSAFLUSH	2		/* drain output, flush input */
+#ifndef _POSIX_SOURCE
+#define TCSASOFT	0x10		/* flag - don't alter h.w. state */
+#endif
+
+/*
+ * Standard speeds
+ */
+#define B0	0
+#define B50	50
+#define B75	75
+#define B110	110
+#define B134	134
+#define B150	150
+#define B200	200
+#define B300	300
+#define B600	600
+#define B1200	1200
+#define	B1800	1800
+#define B2400	2400
+#define B4800	4800
+#define B9600	9600
+#define B19200	19200
+#define B38400	38400
+#ifndef _POSIX_SOURCE
+#define B7200	7200
+#define B14400	14400
+#define B28800	28800
+#define B57600	57600
+#define B76800	76800
+#define B115200	115200
+#define B230400	230400
+#define EXTA	19200
+#define EXTB	38400
+#endif  /* !_POSIX_SOURCE */
+
+#define	TCIFLUSH	1
+#define	TCOFLUSH	2
+#define TCIOFLUSH	3
+#define	TCOOFF		1
+#define	TCOON		2
+#define TCIOFF		3
+#define TCION		4
+
+#include <sys/cdefs.h>
+
+__BEGIN_DECLS
+speed_t	cfgetispeed(const struct termios *);
+speed_t	cfgetospeed(const struct termios *);
+int	cfsetispeed(struct termios *, speed_t);
+int	cfsetospeed(struct termios *, speed_t);
+int	tcgetattr(int, struct termios *);
+int	tcsetattr(int, int, const struct termios *);
+int	tcdrain(int);
+int	tcflow(int, int);
+int	tcflush(int, int);
+int	tcsendbreak(int, int);
+__END_DECLS
+
+#endif /* !_MACH_SA_SYS_TERMIOS_H_ */