diplodocus.org Git - nmh/blob - docs/historical/mh-6.8.5/h/dropsbr.h

   1 /* dropsbr.h - definitions for maildrop-style files */
   2
   3
   4 /* A file which is formatted like a maildrop may have a corresponding map
   5    file which is an index to the bounds of each message.  The first record
   6    of such an map is special, it contains:
   7
   8         d_id    = number of messages in file
   9         d_size  = version number of map
  10         d_start = last message read
  11         d_stop  = size of file
  12
  13     Each record after that contains:
  14
  15         d_id    = BBoard-ID: of message, or similar info
  16         d_size  = size of message in ARPA Internet octets (\n == 2 octets)
  17         d_start = starting position of message in file
  18         d_stop  = stopping position of message in file
  19
  20    Note that d_st{art,op} do NOT include the message delimiters, so
  21    programs using the map can simply fseek to d_start and keep reading
  22    until the position is at d_stop.
  23  */
  24
  25 #define DRVRSN  3
  26
  27 struct drop {
  28     int     d_id;
  29     int     d_size;
  30     long    d_start;
  31     long    d_stop;
  32 };
  33
  34
  35 int     map_chk (), map_read (), map_write ();
  36 char   *map_name ();
  37
  38 int     mbx_mmdf (), mbx_uucp ();
  39 int     mbx_open (), mbx_Xopen (), mbx_copy (), mbx_size (), mbx_close ();
  40 int     mbx_read (), mbx_write ();