mirror of https://github.com/pissnet/pissircd.git
219 lines
5.4 KiB
C
219 lines
5.4 KiB
C
/************************************************************************
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* IRC - Internet Relay Chat, src/whowas.c
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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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#include "unrealircd.h"
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// FIXME: move this to cmd_whowas,
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// Consider making add_history an efunc? Or via a hook?
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// Some users may not want to load cmd_whowas at all.
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void add_whowas_to_clist(WhoWas **, WhoWas *);
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void del_whowas_from_clist(WhoWas **, WhoWas *);
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void add_whowas_to_list(WhoWas **, WhoWas *);
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void del_whowas_from_list(WhoWas **, WhoWas *);
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WhoWas MODVAR WHOWAS[NICKNAMEHISTORYLENGTH];
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WhoWas MODVAR *WHOWASHASH[WHOWAS_HASH_TABLE_SIZE];
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MODVAR int whowas_next = 0;
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/** Free all the fields previously created by create_whowas_entry().
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* NOTE: normally you want to call free_whowas_entry().
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* Calling this free_whowas_fields() function is unusual and mainly
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* for whowasdb which temporarily adds and removes entries.
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*/
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void free_whowas_fields(WhoWas *e)
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{
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safe_free(e->name);
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safe_free(e->hostname);
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safe_free(e->virthost);
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safe_free(e->realname);
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safe_free(e->username);
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safe_free(e->account);
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safe_free(e->ip);
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e->servername = NULL;
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e->event = 0;
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e->logon = 0;
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e->logoff = 0;
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e->connected_since = 0;
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e->hashv = -1;
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}
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/** Free whowas entry. This is the function you normally want to use. */
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void free_whowas_entry(WhoWas *e)
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{
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int hashv = e->hashv;
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free_whowas_fields(e);
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if (e->online)
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del_whowas_from_clist(&(e->online->user->whowas), e);
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del_whowas_from_list(&WHOWASHASH[hashv], e);
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}
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void create_whowas_entry(Client *client, WhoWas *e, WhoWasEvent event)
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{
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e->hashv = hash_whowas_name(client->name);
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e->event = event;
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e->connected_since = get_creationtime(client);
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e->logon = client->lastnick;
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e->logoff = TStime();
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e->umodes = client->umodes;
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safe_strdup(e->name, client->name);
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safe_strdup(e->username, client->user->username);
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safe_strdup(e->hostname, client->user->realhost);
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safe_strdup(e->ip, client->ip);
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if (client->user->virthost)
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safe_strdup(e->virthost, client->user->virthost);
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else
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safe_strdup(e->virthost, "");
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e->servername = client->user->server;
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safe_strdup(e->realname, client->info);
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if (strcmp(client->user->account, "0"))
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safe_strdup(e->account, client->user->account);
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/* Its not string copied, a pointer to the scache hash is copied
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-Dianora
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*/
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/* strlcpy(e->servername, client->user->server,HOSTLEN); */
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e->servername = client->user->server;
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}
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void add_history(Client *client, int online, WhoWasEvent event)
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{
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WhoWas *new;
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new = &WHOWAS[whowas_next];
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if (new->hashv != -1)
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free_whowas_entry(new);
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create_whowas_entry(client, new, event);
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if (online)
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{
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new->online = client;
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add_whowas_to_clist(&(client->user->whowas), new);
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} else {
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new->online = NULL;
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}
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add_whowas_to_list(&WHOWASHASH[new->hashv], new);
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whowas_next++;
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if (whowas_next == NICKNAMEHISTORYLENGTH)
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whowas_next = 0;
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}
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void off_history(Client *client)
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{
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WhoWas *temp, *next;
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for (temp = client->user->whowas; temp; temp = next)
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{
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next = temp->cnext;
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temp->online = NULL;
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del_whowas_from_clist(&(client->user->whowas), temp);
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}
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}
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Client *get_history(const char *nick, time_t timelimit)
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{
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WhoWas *temp;
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int blah;
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timelimit = TStime() - timelimit;
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blah = hash_whowas_name(nick);
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temp = WHOWASHASH[blah];
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for (; temp; temp = temp->next)
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{
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if (mycmp(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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return NULL;
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}
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void count_whowas_memory(int *wwu, u_long *wwum)
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{
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WhoWas *tmp;
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int i;
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int u = 0;
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u_long um = 0;
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/* count the number of used whowas structs in 'u' */
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/* count up the memory used of whowas structs in um */
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for (i = 0, tmp = &WHOWAS[0]; i < NICKNAMEHISTORYLENGTH; i++, tmp++)
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if (tmp->hashv != -1)
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{
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u++;
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um += sizeof(WhoWas);
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}
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*wwu = u;
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*wwum = um;
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return;
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}
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void initwhowas()
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{
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int i;
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for (i = 0; i < NICKNAMEHISTORYLENGTH; i++)
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{
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memset(&WHOWAS[i], 0, sizeof(WhoWas));
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WHOWAS[i].hashv = -1;
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}
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for (i = 0; i < WHOWAS_HASH_TABLE_SIZE; i++)
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WHOWASHASH[i] = NULL;
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}
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void add_whowas_to_clist(WhoWas ** bucket, WhoWas * whowas)
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{
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whowas->cprev = NULL;
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if ((whowas->cnext = *bucket) != NULL)
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whowas->cnext->cprev = whowas;
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*bucket = whowas;
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}
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void del_whowas_from_clist(WhoWas ** bucket, WhoWas * whowas)
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{
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if (whowas->cprev)
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whowas->cprev->cnext = whowas->cnext;
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else
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*bucket = whowas->cnext;
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if (whowas->cnext)
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whowas->cnext->cprev = whowas->cprev;
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}
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void add_whowas_to_list(WhoWas ** bucket, WhoWas * whowas)
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{
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whowas->prev = NULL;
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if ((whowas->next = *bucket) != NULL)
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whowas->next->prev = whowas;
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*bucket = whowas;
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}
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void del_whowas_from_list(WhoWas ** bucket, WhoWas * whowas)
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{
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if (whowas->prev)
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whowas->prev->next = whowas->next;
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else
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*bucket = whowas->next;
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if (whowas->next)
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whowas->next->prev = whowas->prev;
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}
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