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/*
* dropsbr.h -- definitions for maildrop-style files
*/
/*
* A file which is formatted like a maildrop may have a corresponding map
* file which is an index to the bounds of each message. The first record
* of such an map is special, it contains:
*
* d_id = number of messages in file
* d_size = version number of map
* d_start = last message read
* d_stop = size of file
*
* Each record after that contains:
*
* d_id = BBoard-ID: of message, or similar info
* d_size = size of message in ARPA Internet octets (\n == 2 octets)
* d_start = starting position of message in file
* d_stop = stopping position of message in file
*
* Note that d_start/d_stop do NOT include the message delimiters, so
* programs using the map can simply fseek to d_start and keep reading
* until the position is at d_stop.
*/
/*
* various formats for maildrop files
*/
#define OTHER_FORMAT 0
#define MBOX_FORMAT 1
#define MMDF_FORMAT 2
#define DRVRSN 3
struct drop {
int d_id;
int d_size;
off_t d_start;
off_t d_stop;
};
/*
* prototypes
*/
int mbx_open (char *, int, uid_t, gid_t, mode_t);
int mbx_read (FILE *, long, struct drop **, int);
int mbx_write(char *, int, FILE *, int, long, long, off_t, int, int);
int mbx_copy (char *, int, int, int, int, char *, int);
int mbx_size (int, off_t, off_t);
int mbx_close (char *, int);
char *map_name (char *);
int map_read (char *, long, struct drop **, int);
int map_write (char *, int, int, long, off_t, off_t, long, int, int);
int map_chk (char *, int, struct drop *, long, int);
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