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/* |
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* ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd). |
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* whowas.c: WHOWAS user cache. |
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* |
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* Copyright (C) 2005 by the past and present ircd coders, and others. |
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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 2 of the License, or |
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* (at your option) 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 |
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* USA |
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* |
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* $Id$ |
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*/ |
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|
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#include "stdinc.h" |
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#include "whowas.h" |
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#include "client.h" |
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#include "common.h" |
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#include "hash.h" |
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#include "ircd.h" |
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#include "ircd_defs.h" |
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#include "numeric.h" |
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#include "s_serv.h" |
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#include "s_user.h" |
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#include "send.h" |
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#include "s_conf.h" |
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|
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static struct Whowas WHOWAS[NICKNAMEHISTORYLENGTH]; |
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dlink_list WHOWASHASH[HASHSIZE]; |
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|
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void |
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add_history(struct Client *client_p, int online) |
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{ |
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static unsigned int whowas_next = 0; |
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struct Whowas *who = &WHOWAS[whowas_next]; |
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|
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if (++whowas_next == NICKNAMEHISTORYLENGTH) |
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whowas_next = 0; |
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|
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assert(client_p != NULL); |
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|
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/* XXX when is this possible? Looks like it could happen |
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* (with a half registered client.) |
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* and what is the correct action here? - Dianora |
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*/ |
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if (client_p->servptr == NULL) |
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return; |
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|
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if (who->hashv != -1) |
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{ |
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if (who->online) |
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dlinkDelete(&who->cnode, &who->online->whowas); |
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|
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dlinkDelete(&who->tnode, &WHOWASHASH[who->hashv]); |
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} |
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|
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who->hashv = strhash(client_p->name); |
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who->logoff = CurrentTime; |
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|
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/* NOTE: strcpy ok here, the sizes in the client struct MUST |
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* match the sizes in the whowas struct |
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*/ |
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strlcpy(who->name, client_p->name, sizeof(who->name)); |
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strcpy(who->username, client_p->username); |
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strcpy(who->hostname, client_p->host); |
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strcpy(who->realname, client_p->info); |
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|
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strlcpy(who->servername, client_p->servptr->name, sizeof(who->servername)); |
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|
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if (online) |
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{ |
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who->online = client_p; |
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dlinkAdd(who, &who->cnode, &client_p->whowas); |
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} |
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else |
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who->online = NULL; |
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|
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dlinkAdd(who, &who->tnode, &WHOWASHASH[who->hashv]); |
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} |
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|
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void |
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off_history(struct Client *client_p) |
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{ |
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dlink_node *ptr = NULL, *ptr_next = NULL; |
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|
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DLINK_FOREACH_SAFE(ptr, ptr_next, client_p->whowas.head) |
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{ |
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struct Whowas *temp = ptr->data; |
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temp->online = NULL; |
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dlinkDelete(&temp->cnode, &client_p->whowas); |
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} |
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} |
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|
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struct Client * |
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get_history(const char *nick, time_t timelimit) |
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{ |
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dlink_node *ptr = NULL; |
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|
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timelimit = CurrentTime - timelimit; |
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|
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DLINK_FOREACH(ptr, WHOWASHASH[strhash(nick)].head) { |
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struct Whowas *temp = ptr->data; |
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|
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if (irccmp(nick, temp->name)) |
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continue; |
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if (temp->logoff < timelimit) |
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continue; |
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return temp->online; |
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} |
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|
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return NULL; |
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} |
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|
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void |
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init_whowas(void) |
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{ |
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unsigned int i; |
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|
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for (i = 0; i < NICKNAMEHISTORYLENGTH; ++i) |
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{ |
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memset(&WHOWAS[i], 0, sizeof(struct Whowas)); |
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WHOWAS[i].hashv = -1; |
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} |
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|
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/* |
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* Global variables are always 0 initialized, |
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* but we do this anyway. |
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*/ |
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memset(WHOWASHASH, 0, sizeof(WHOWASHASH)); |
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} |
