sys/tty.h

struct clist {
        int     c_cc;
        int     c_cf;
        int     c_cl;
}

struct tty {
        struct  clist t_rawq;
        struct  clist t_canq;
        struct  clist t_outq;
        int     t_flags;
        int     *t_addr;
        char    t_delct;
        char    t_col;
        char    t_intrup;
        char    t_quit;
        char    t_state;
        int     t_speeds;
};

char partab[];

#define TTIPRI  10
#define TTOPRI  20
#define CERASE  '#'
#define CEOT    004
#define CKILL   '@'

/* limits */
#define TTHIWAT 50
#define TTLOWAT 30
#define TTYHOG  256

/* modes */
#define NODELAY 01
#define XTABS   02
#define LCASE   04
#define ECHO    010
#define CRMOD   020
#define RAW     040
#define ODDP    0100
#define EVENP   0200
#define M2741   0400
#define OCORR   02000
#define ICORR   04000
#define NTDELAY 010000

/* Bits */

#define DONE    0200
#define IENABLE 0100
#define TIMEOUT 01
#define WOPEN   02
#define ISOPEN  04