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jfr.im git - irc/quakenet/snircd.git/blob - include/whowas.h
2 * IRC - Internet Relay Chat, include/whowas.h
3 * Copyright (C) 1990 Markku Savela
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 1, or (at your option)
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 * @brief Globally visible declarations to manipulate whowas information.
21 * @version $Id: whowas.h,v 1.6 2004/10/05 04:14:44 entrope Exp $
23 #ifndef INCLUDED_whowas_h
24 #define INCLUDED_whowas_h
25 #ifndef INCLUDED_sys_types_h
26 #include <sys/types.h> /* size_t */
27 #define INCLUDED_sys_types_h
36 #define BITS_PER_COL 3 /**< Magic number used by whowas hash function. */
37 #define BITS_PER_COL_MASK 0x7 /**< Mask with #BITS_PER_COL least significant bits set. */
38 #define WW_MAX_INITIAL 16 /**< Magic number used by whowas hash function. */
40 #define MAX_SUB (1 << BITS_PER_COL) /**< Magic number used by whowas hash function. */
41 #define WW_MAX_INITIAL_MASK (WW_MAX_INITIAL - 1) /**< Magic number used by whowas hash function. */
42 #define WW_MAX (WW_MAX_INITIAL * MAX_SUB) /**< Size of whowas hash table. */
48 /** Tracks previously used nicknames. */
50 unsigned int hashv
; /**< Hash value for nickname. */
51 char *name
; /**< Client's old nickname. */
52 char *username
; /**< Client's username. */
53 char *hostname
; /**< Client's hostname. */
54 char *realhost
; /**< Client's real hostname. */
55 char *servername
; /**< Name of client's server. */
56 char *realname
; /**< Client's realname (user info). */
57 char *away
; /**< Client's away message. */
58 time_t logoff
; /**< When the client logged off. */
59 struct Client
*online
; /**< Needed for get_history() (nick chasing). */
60 struct Whowas
*hnext
; /**< Next entry with the same hash value. */
61 struct Whowas
**hprevnextp
; /**< Pointer to previous next pointer. */
62 struct Whowas
*cnext
; /**< Next entry with the same 'online' pointer. */
63 struct Whowas
**cprevnextp
; /**< Pointer to previous next pointer. */
64 struct Whowas
*wnext
; /**< Next entry in whowas linked list. */
65 struct Whowas
*wprev
; /**< Pointer to previous next pointer. */
71 extern struct Whowas
* whowashash
[];
73 extern unsigned int hash_whowas_name(const char *name
);
75 extern struct Client
*get_history(const char *nick
, time_t timelimit
);
76 extern void add_history(struct Client
*cptr
, int still_on
);
77 extern void off_history(const struct Client
*cptr
);
78 extern void initwhowas(void);
79 extern void count_whowas_memory(int *wwu
, size_t *wwm
, int *wwa
, size_t *wwam
);
81 extern void whowas_realloc(void);
83 #endif /* INCLUDED_whowas_h */