/* input modes */
#define BRKINT	0x001
#define ICRNL	0x002
#define IGNBRK	0x004
#define IGNCR	0x008
#define IGNPAR	0x010
#define INLCR	0x020
#define INPCK	0x040
#define ISTRIP	0x080
#define IXOFF	0x100
#define IXON	0x200
#define PARMRK	0x400

/* output modes */
#define	OPOST	0000001
#define	OLCUC	0000002
#define	ONLCR	0000004
#define	OCRNL	0000010
#define	ONOCR	0000020
#define	ONLRET	0000040
#define	OFILL	0000100
#define	OFDEL	0000200
#define	NLDLY	0000400
#define	NL0	0
#define	NL1	0000400
#define	CRDLY	0003000
#define	CR0	0
#define	CR1	0001000
#define	CR2	0002000
#define	CR3	0003000
#define	TABDLY	0014000
#define	TAB0	0
#define	TAB1	0004000
#define	TAB2	0010000
#define	TAB3	0014000
#define	BSDLY	0020000
#define	BS0	0
#define	BS1	0020000
#define	VTDLY	0040000
#define	VT0	0
#define	VT1	0040000
#define	FFDLY	0100000
#define	FF0	0
#define	FF1	0100000

/* control modes */
#define CLOCAL	0x001
#define CREAD	0x002
#define CSIZE	0x01C
#define CS5	0x004
#define CS6	0x008
#define CS7	0x00C
#define CS8	0x010
#define CSTOPB	0x020
#define HUPCL	0x040
#define PARENB	0x080
#define PARODD	0x100

/* local modes */
#define ECHO	0x001
#define ECHOE	0x002
#define ECHOK	0x004
#define ECHONL	0x008
#define ICANON	0x010
#define IEXTEN	0x020
#define ISIG	0x040
#define NOFLSH	0x080
#define TOSTOP	0x100

/* control characters */
#define VEOF	0
#define VEOL	1
#define VERASE	2
#define VINTR	3
#define VKILL	4
#define VMIN	5
#define VQUIT	6
#define VSUSP	7
#define VTIME	8
#define VSTART	9
#define VSTOP	10
#define NCCS	11

/* baud rates */
#define B0	0
#define B50	1
#define B75	2
#define B110	3
#define B134	4
#define B150	5
#define B200	6
#define B300	7
#define B600	8
#define B1200	9
#define B1800	10
#define B2400	11
#define B4800	12
#define B9600	13
#define B19200	14
#define B38400	15

#define	CESC	'\\'
#define	CINTR	0177	/* DEL */
#define	CQUIT	034	/* FS, cntl | */
#define	CERASE	010	/* BS */
#define	CKILL	025	/* cntl u */
#define	CEOF	04	/* cntl d */
#define	CSTART	021	/* cntl q */
#define	CSTOP	023	/* cntl s */
#define	CSWTCH	032	/* cntl z */
#define CEOL	000
#define	CNSWTCH	0

/* optional actions for tcsetattr */
#define TCSANOW	  1
#define TCSADRAIN 2
#define TCSAFLUSH 3

typedef struct Termios Termios;
struct Termios
{
	int	iflag;		/* input modes */
	int	oflag;		/* output modes */
	int	cflag;		/* control modes */
	int	lflag;		/* local modes */
	uchar	cc[NCCS];	/* control characters */
};