/* ************************************************************************
* File: mail.h Part of CircleMUD *
* Usage: header file for mail system *
* *
* All rights reserved. See license.doc for complete information. *
* *
* Copyright (C) 1993 by the Trustees of the Johns Hopkins University *
* CircleMUD is based on DikuMUD, Copyright (C) 1990, 1991. *
************************************************************************ */
/******* MUD MAIL SYSTEM HEADER FILE ****************************
*** written by Jeremy Elson (jelson@server.cs.jhu.edu) ***
**** compliments of CircleMUD (circle.cs.jhu.edu 4000) ****
***************************************************************/
/* INSTALLATION INSTRUCTIONS in MAIL.C */
/* You can modify the following constants to fit your own MUD. */
/* command numbers of the "mail", "check", and "receive" commands
in your interpreter. */
#define CMD_MAIL 247
#define CMD_CHECK 248
#define CMD_RECEIVE 249
/* minimum level a player must be to send mail */
#define MIN_MAIL_LEVEL 2
/* # of gold coins required to send mail */
#define STAMP_PRICE 150
/* Maximum size of mail in bytes (arbitrary) */
#define MAX_MAIL_SIZE 4000
/* Max size of player names */
#define NAME_SIZE 15
/* size of mail file allocation blocks */
#define BLOCK_SIZE 100
/* NOTE: Make sure that your block size is big enough -- if not,
HEADER_BLOCK_DATASIZE will end up negative. This is a bad thing.
Check the define below to make sure it is >0 when choosing values
for NAME_SIZE and BLOCK_SIZE. 100 is a nice round number for
BLOCK_SIZE and is the default ... why bother trying to change it
anyway?
The mail system will always allocate disk space in chunks of size
BLOCK_SIZE.
*/
/* USER CHANGABLE DEFINES ABOVE **
***************************************************************************
** DON'T TOUCH DEFINES BELOW */
int scan_file(void);
int has_mail(char *recipient);
void store_mail(char *to, char *from, char *message_pointer);
char *read_delete(char *recipient, char *recipient_formatted);
#define INT_SIZE sizeof(int)
#define CHAR_SIZE sizeof(char)
#define LONG_SIZE sizeof(long)
#define HEADER_BLOCK_DATASIZE (BLOCK_SIZE-1-((CHAR_SIZE*(NAME_SIZE+1)*2)+(3*LONG_SIZE)))
/* size of the data part of a header block */
#define DATA_BLOCK_DATASIZE (BLOCK_SIZE-LONG_SIZE-1)
/* size of the data part of a data block */
/* note that an extra space is allowed in all string fields for the
terminating null character. */
#define HEADER_BLOCK -1
#define LAST_BLOCK -2
#define DELETED_BLOCK -3
/* note: next_block is part of header_blk in a data block; we can't combine
them here because we have to be able to differentiate a data block from a
header block when booting mail system.
*/
struct header_block_type_d {
long block_type; /* is this a header block or data block? */
long next_block; /* if header block, link to next block */
char from[NAME_SIZE+1]; /* who is this letter from? */
char to[NAME_SIZE+1];/* who is this letter to? */
long mail_time; /* when was the letter mailed? */
char txt[HEADER_BLOCK_DATASIZE+1]; /* the actual text */
};
struct data_block_type_d {
long block_type; /* -1 if header block, -2 if last data block
in mail, otherwise a link to the next */
char txt[DATA_BLOCK_DATASIZE+1]; /* the actual text */
};
typedef struct header_block_type_d header_block_type;
typedef struct data_block_type_d data_block_type;
struct position_list_type_d {
long position;
struct position_list_type_d *next;
};
typedef struct position_list_type_d position_list_type;
struct mail_index_type_d {
char recipient[NAME_SIZE+1]; /* who the mail is for */
position_list_type * list_start; /* list of mail positions */
struct mail_index_type_d *next;
};
typedef struct mail_index_type_d mail_index_type;