87 lines
3.3 KiB
C
87 lines
3.3 KiB
C
/*
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* IRC - Internet Relay Chat, include/whowas.h
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* Copyright (C) 1990 Markku Savela
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 1, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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/** @file
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* @brief Globally visible declarations to manipulate whowas information.
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* @version $Id: whowas.h 1229 2004-10-05 04:14:44Z entrope $
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*/
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#ifndef INCLUDED_whowas_h
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#define INCLUDED_whowas_h
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#ifndef INCLUDED_sys_types_h
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#include <sys/types.h> /* size_t */
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#define INCLUDED_sys_types_h
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#endif
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#include "res.h"
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struct Client;
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/*
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* General defines
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*/
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#define BITS_PER_COL 3 /**< Magic number used by whowas hash function. */
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#define BITS_PER_COL_MASK 0x7 /**< Mask with #BITS_PER_COL least significant bits set. */
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#define WW_MAX_INITIAL 16 /**< Magic number used by whowas hash function. */
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#define MAX_SUB (1 << BITS_PER_COL) /**< Magic number used by whowas hash function. */
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#define WW_MAX_INITIAL_MASK (WW_MAX_INITIAL - 1) /**< Magic number used by whowas hash function. */
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#define WW_MAX (WW_MAX_INITIAL * MAX_SUB) /**< Size of whowas hash table. */
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/*
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* Structures
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*/
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/** Tracks previously used nicknames. */
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struct Whowas {
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unsigned int hashv; /**< Hash value for nickname. */
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char *name; /**< Client's old nickname. */
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char *username; /**< Client's username. */
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char *hostname; /**< Client's hostname. */
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char *realhost; /**< Client's real hostname. */
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char *servername; /**< Name of client's server. */
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char *realname; /**< Client's realname (user info). */
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char *away; /**< Client's away message. */
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time_t logoff; /**< When the client logged off. */
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struct irc_in_addr ip; /**< Client's last IP address. */
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struct Client *online; /**< Needed for get_history() (nick chasing). */
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struct Whowas *hnext; /**< Next entry with the same hash value. */
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struct Whowas **hprevnextp; /**< Pointer to previous next pointer. */
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struct Whowas *cnext; /**< Next entry with the same 'online' pointer. */
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struct Whowas **cprevnextp; /**< Pointer to previous next pointer. */
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struct Whowas *wnext; /**< Next entry in whowas linked list. */
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struct Whowas *wprev; /**< Pointer to previous next pointer. */
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};
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/*
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* Proto types
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*/
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extern struct Whowas* whowashash[];
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extern unsigned int hash_whowas_name(const char *name);
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extern struct Client *get_history(const char *nick, time_t timelimit);
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extern void add_history(struct Client *cptr, int still_on);
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extern void off_history(const struct Client *cptr);
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extern void initwhowas(void);
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extern void count_whowas_memory(int *wwu, size_t *wwm, int *wwa, size_t *wwam);
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extern void whowas_realloc(void);
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#endif /* INCLUDED_whowas_h */
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