> I would appreciate any help...  Obviously code would be nice but an
 > easy explanation or even the ported structs from Pascal to C would be
 > great :-)

/* hudson.h
 * C/C++ header file for Hudson message base (HMB) format
 */

# if !defined(_HUDSON_H)
# define _HUDSON_H
# if defined(__cplusplus)
extern "C" {
# endif
# pragma pack(1)                                      /* Packed structures */

# define Q_MAXAREAS 200

# define Q_LASTREAD "LASTREAD.BBS"
# define Q_MSGINFO  "MSGINFO.BBS"
# define Q_MSGIDX   "MSGIDX.BBS"
# define Q_MSGTOIDX "MSGTOIDX.BBS"
# define Q_MSGHDR   "MSGHDR.BBS"
# define Q_MSGTXT   "MSGTXT.BBS"

# define b2a(b)     (b-1)                      /* Board number to area index */
# define a2b(a)     (a+1)                      /* Area index to board number */

typedef long RECPOS;
typedef unsigned char uchar;
typedef unsigned short ushort;

# define recofs(o)  (RECPOS)((RECPOS)o*256L)    /* Cvt record to file offset */

# define    MA_DELETED      0x01                          /* Message deleted */
# define    MA_OUTNET       0x02             /* Unmoved Outgoing Net Message */
# define    MA_NETMAIL      0x04                    /* Is a Net Mail Message */
# define    MA_PRIVATE      0x08                                  /* Private */
# define    MA_RECEIVED     0x10                                 /* Received */
# define    MA_OUTECHO      0x20            /* Unmoved Outgoing Echo Message */
# define    MA_LOCAL        0x40              /* Local Bit, was written here */
# define    MA_READONLY     0x80                                 /* Reserved */

# define    NA_KILLSENT     0x01        /* Kill Message after it's been sent */
# define    NA_SENTOK       0x02                                  /* Sent OK */
# define    NA_FATTACH      0x04                         /* File(s) Attached */
# define    NA_CRASH        0x08                           /* Crash Priority */
# define    NA_REQREC       0x10                          /* Request Receipt */
# define    NA_AUDREQ       0x20                            /* Audit Request */
# define    NA_RETREC       0x40                      /* Is a Return Receipt */
# define    NA_DIRECT       0x80                                   /* Direct */


typedef struct _lastread        /* LASTREAD.BBS record */
{
    word    last[Q_MAXAREAS];                     /* User lastread computers */
}   LASTREAD;

# define SZ_Hlr sizeof(LASTREAD)

typedef struct _msginfo         /* MSGINFO.BBS */
{
    ushort  lowmsg;
    ushort  highmsg;
    ushort  totalactive;
    ushort  active[Q_MAXAREAS];
}   MSGINFO;

# define SZ_Hmi sizeof(MSGINFO)

typedef struct _msgidx      /* MSGIDX.BBS record: 1 per msg */
{                           /* Record corresponds to MSGHDR.BBS */
    ushort  msgno;
    byte    board;
}   MSGIDX;

# define SZ_Hidx sizeof(MSGIDX)

typedef struct _msghdr      /* MSGHDR.BBS record: 1 per msg */
{
    ushort  msgno;
    ushort  replyto;
    ushort  seealso;
    ushort  timesread;
    ushort  start;
    ushort  numrecs;
    ushort  destnet;
    ushort  destnode;
    ushort  orignet;
    ushort  orignode;
    uchar   destzone;
    uchar   origzone;
    ushort  cost;
    uchar   msgattr;
    uchar   netattr;
    uchar   board;
    uchar   msgtime[6];
    uchar   msgdate[9];
    uchar   msgto[36];
    uchar   msgfrom[36];
    uchar   subject[73];
}   MSGHDR;

# define SZ_hdr sizeof(MSGHDR)

typedef struct _msgtoidx    /* MSGTOIDX.BBS record: 1 per msg */
{                           /* Record corresponds to MSGHDR.BBS */
    uchar   msgto[36];
}   MSGTOIDX;

# define SZ_toidx  36

typedef struct _msgtxt      /* MSGTXT.BBS, text divided into 256b chunks */
{                           /* byte 0=length, 1-255 text */
    uchar   text[256];
}   MSGTXT;

# define SZ_txt 256

# pragma pack()
# if defined(__cplusplus)
}
# endif
# endif

If you have any questions as to how it all works, just ask.

  regards,
  david

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SD®¯^–-