usr/src/usr.bin/uucp/uucico/pk.h

/*      pk.h    5.2     85/01/22        */

struct header {
        char    sync;
        char    ksize;
        unsigned short sum;
        char    cntl;
        char    ccntl;
};
#define HDRSIZ  6

struct pack {
        short   p_state;        /* line state */
        short   p_bits;         /* mask for getepack */
        short   p_rsize;        /* input packet size */
        short   p_xsize;        /* output packet size */
        struct  header p_ihbuf; /* input header */
        struct  header p_ohbuf; /* output header */
        char    *p_rptr;
        char    p_mode;
        char    **p_ipool;
        char    p_xcount;       /* # active output buffers */
        char    p_rcount;
        char    p_nout,p_tout;
        char    p_lpsize;       /* log(psize/32) */
        char    p_timer;
        char    p_obusy;
        char    p_srxmit;
        char    p_rwindow;      /* window size */
        char    p_swindow;
        char    p_msg;          /* control msg */
        char    p_rmsg;         /* repeated control msg */
        char    p_ps,p_pr;      /* last packet sent, recv'd */
        char    p_rpr;
        char    p_nxtps;        /* next output seq number */
        char    p_imap;         /* bit map of input buffers */
        char    p_pscopy;       /* newest output packet */
        char    *p_ob[8];       /* output buffers */
        char    *p_ib[8];       /* input buffers */
        char    p_os[8];        /* output buffer status */
        char    p_is[8];        /* input buffer status */
        short   p_osum[8];      /* output checksums */
        short   p_isum[8];      /* input checksums */
        DSYSTEM;
};
#define CHECK   0125252
#define SYN     020
#define MOD8    7
#define ISCNTL(a)       ((a & 0300)==0)
/* MIN may have been defined in <sys/param.h> */
#undef  MIN
#define MIN(a,b)        ((a<b)? a:b)

extern char     next[8];
extern char     mask[8];
extern int      npbits;
extern int      pkactive;

/*
 * driver state
 */
#define DEAD    0
#define INITa   1
#define INITb   2
#define INITab  3
#define LIVE    010
#define RXMIT   020
#define RREJ    040
#define PDEBUG  0200
#define DRAINO  0400
#define WAITO   01000
#define DOWN    02000
#define RCLOSE  04000
#define BADFRAME 020000

/*
 * io buffer states
 */
#define B_NULL  0
#define B_READY 1
#define B_SENT  2
#define B_RESID 010
#define B_COPY  020
#define B_MARK  040
#define B_SHORT 0100

/*
 * control messages
 */
#define CLOSE   1
#define RJ      2
#define SRJ     3
#define RR      4
#define INITC   5
#define INITB   6
#define INITA   7

#define M_RJ    4
#define M_SRJ   010
#define M_RR    020
#define M_INITC 040
#define M_CLOSE 2
#define M_INITA 0200
#define M_INITB 0100


#define PKOPRI  31
#define PKIPRI  30

/*
 * allegra.1402, allegra!honey, Peter Honeyman. Increase PKLINES
 * to avoid PKSTART FAILEDs.  (This is a kludge.)
 */
#define NPLINES 20

/*
 * packet ioctl buf
 */
struct  piocb {
        unsigned t;
        short   psize;
        short   mode;
        short   state;
        char    window;
};

extern int pkdebug;
extern int pksizes[];