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mailbox.h
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mailbox.h
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/* mailbox.h -- Mailbox format definitions
*
* (C) Copyright 1994 by Carnegie Mellon University
*
* All Rights Reserved
*
* Permission to use, copy, modify, and distribute this software and its
* documentation for any purpose and without fee is hereby granted,
* provided that the above copyright notice appear in all copies and that
* both that copyright notice and this permission notice appear in
* supporting documentation, and that the name of CMU not be
* used in advertising or publicity pertaining to distribution of the
* software without specific, written prior permission.
*
* CMU DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
* ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
* CMU BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
* ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
* WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
* ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
* SOFTWARE.
*
*/
#include <sys/types.h>
typedef unsigned bit32;
#define MAX_MAILBOX_PATH 4096
#define MAX_USER_FLAGS (16*8)
#define MAILBOX_HEADER_MAGIC "\241\002\213\015Cyrus mailbox header\n\"The best thing about this system was that it had lots of goals.\"\n\t--Jim Morris on Andrew\n"
#define MAILBOX_FORMAT_NORMAL 0
#define MAILBOX_FORMAT_NETNEWS 1
#define MAILBOX_MINOR_VERSION 0
#define FNAME_HEADER "/cyrus.header"
#define FNAME_INDEX "/cyrus.index"
#define FNAME_CACHE "/cyrus.cache"
#define FNAME_QUOTADIR "/quota/"
#define FNAME_LOGDIR "/log/"
#define QUOTA_UNITS (1024)
struct quota {
FILE *file;
int lock_count;
char *root;
/* Information in quota file */
unsigned long used;
int limit; /* in QUOTA_UNITS */
};
struct mailbox {
FILE *header;
FILE *index;
FILE *cache;
int header_lock_count;
int index_lock_count;
int seen_lock_count;
int pop_lock_count;
time_t header_mtime;
time_t index_mtime;
long index_ino;
/* Information in mailbox list */
char *name;
char *path;
char *acl;
long myrights;
/* Information in header */
/* quota.root */
char *flagname[MAX_USER_FLAGS];
/* Information in index file */
bit32 generation_no;
int format;
int minor_version;
unsigned long start_offset;
unsigned long record_size;
unsigned long exists;
time_t last_appenddate;
unsigned long last_uid;
unsigned long quota_mailbox_used;
unsigned long pop3_last_uid;
unsigned long uidvalidity;
struct quota quota;
};
struct index_record {
unsigned long uid;
time_t internaldate;
time_t sentdate;
unsigned long size;
unsigned long header_size;
unsigned long content_offset;
unsigned long cache_offset;
time_t last_updated;
bit32 system_flags;
bit32 user_flags[MAX_USER_FLAGS/32];
};
/* Offsets of index header fields */
#define OFFSET_GENERATION_NO 0
#define OFFSET_FORMAT 4
#define OFFSET_MINOR_VERSION 8
#define OFFSET_START_OFFSET 12
#define OFFSET_RECORD_SIZE 16
#define OFFSET_EXISTS 20
#define OFFSET_LAST_APPENDDATE 24
#define OFFSET_LAST_UID 28
#define OFFSET_QUOTA_MAILBOX_USED 32
#define OFFSET_POP3_LAST_UID 36
#define OFFSET_UIDVALIDITY 40
/* Offsets of index_record fields in index file */
#define OFFSET_UID 0
#define OFFSET_INTERNALDATE 4
#define OFFSET_SENTDATE 8
#define OFFSET_SIZE 12
#define OFFSET_HEADER_SIZE 16
#define OFFSET_CONTENT_OFFSET 20
#define OFFSET_CACHE_OFFSET 24
#define OFFSET_LAST_UPDATED 28
#define OFFSET_SYSTEM_FLAGS 32
#define OFFSET_USER_FLAGS 36
#define INDEX_HEADER_SIZE (OFFSET_UIDVALIDITY+4)
#define INDEX_RECORD_SIZE (OFFSET_USER_FLAGS+MAX_USER_FLAGS/8)
#define FLAG_ANSWERED (1<<0)
#define FLAG_FLAGGED (1<<1)
#define FLAG_DELETED (1<<2)
#define FLAG_DRAFT (1<<3)
extern char *mailbox_cache_header_name[];
extern int mailbox_num_cache_header;
extern char *mailbox_message_fname();

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