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root/svn/ircd-hybrid/trunk/src/client.c
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Comparing:
ircd-hybrid-7.2/src/client.c (file contents), Revision 876 by michael, Wed Oct 24 21:51:21 2007 UTC vs.
ircd-hybrid/trunk/src/client.c (file contents), Revision 4975 by michael, Mon Dec 1 19:54:35 2014 UTC

# Line 1 | Line 1
1   /*
2 < *  ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
3 < *  client.c: Controls clients.
2 > *  ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
3   *
4 < *  Copyright (C) 2002 by the past and present ircd coders, and others.
4 > *  Copyright (c) 1997-2014 ircd-hybrid development team
5   *
6   *  This program is free software; you can redistribute it and/or modify
7   *  it under the terms of the GNU General Public License as published by
# Line 16 | Line 15
15   *
16   *  You should have received a copy of the GNU General Public License
17   *  along with this program; if not, write to the Free Software
18 < *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
18 > *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
19   *  USA
20 < *
21 < *  $Id$
20 > */
21 >
22 > /*! \file client.c
23 > * \brief Controls clients.
24 > * \version $Id$
25   */
26  
27   #include "stdinc.h"
28 < #include "tools.h"
28 > #include "list.h"
29   #include "client.h"
28 #include "channel_mode.h"
29 #include "common.h"
30   #include "event.h"
31 #include "fdlist.h"
31   #include "hash.h"
32   #include "irc_string.h"
34 #include "sprintf_irc.h"
33   #include "ircd.h"
36 #include "list.h"
37 #include "s_gline.h"
34   #include "numeric.h"
35 < #include "packet.h"
40 < #include "s_auth.h"
35 > #include "auth.h"
36   #include "s_bsd.h"
37 < #include "s_conf.h"
38 < #include "s_log.h"
39 < #include "s_misc.h"
40 < #include "s_serv.h"
37 > #include "conf.h"
38 > #include "log.h"
39 > #include "misc.h"
40 > #include "server.h"
41   #include "send.h"
42   #include "whowas.h"
43 < #include "s_user.h"
49 < #include "dbuf.h"
43 > #include "user.h"
44   #include "memory.h"
45 + #include "mempool.h"
46   #include "hostmask.h"
52 #include "balloc.h"
47   #include "listener.h"
54 #include "irc_res.h"
48   #include "userhost.h"
49   #include "watch.h"
50 + #include "rng_mt.h"
51 + #include "parse.h"
52 + #include "ipcache.h"
53  
58 dlink_list listing_client_list = { NULL, NULL, 0 };
59 /* Pointer to beginning of Client list */
60 dlink_list global_client_list = {NULL, NULL, 0};
61 /* unknown/client pointer lists */
62 dlink_list unknown_list = {NULL, NULL, 0};
63 dlink_list local_client_list = {NULL, NULL, 0};
64 dlink_list serv_list = {NULL, NULL, 0};
65 dlink_list global_serv_list = {NULL, NULL, 0};
66 dlink_list oper_list = {NULL, NULL, 0};
67
68 static EVH check_pings;
54  
55 < static BlockHeap *client_heap  = NULL;
56 < static BlockHeap *lclient_heap = NULL;
57 <
58 < static dlink_list dead_list  = { NULL, NULL, 0};
59 < static dlink_list abort_list = { NULL, NULL, 0};
55 > dlink_list listing_client_list;
56 > dlink_list unknown_list;
57 > dlink_list local_client_list;
58 > dlink_list local_server_list;
59 > dlink_list global_client_list;
60 > dlink_list global_server_list;
61 > dlink_list oper_list;
62  
63 + static mp_pool_t *client_pool, *connection_pool;
64 + static dlink_list dead_list, abort_list;
65   static dlink_node *eac_next;  /* next aborted client to exit */
66  
78 static void check_pings_list(dlink_list *);
79 static void check_unknowns_list(void);
80 static void ban_them(struct Client *client_p, struct ConfItem *conf);
81
82
83 /* init_client()
84 *
85 * inputs       - NONE
86 * output       - NONE
87 * side effects - initialize client free memory
88 */
89 void
90 init_client(void)
91 {
92  /* start off the check ping event ..  -- adrian
93   * Every 30 seconds is plenty -- db
94   */
95  client_heap = BlockHeapCreate("client", sizeof(struct Client), CLIENT_HEAP_SIZE);
96  lclient_heap = BlockHeapCreate("local client", sizeof(struct LocalUser), LCLIENT_HEAP_SIZE);
97  eventAdd("check_pings", check_pings, NULL, 5);
98 }
67  
68   /*
69   * make_client - create a new Client struct and set it to initial state.
# Line 115 | Line 83 | init_client(void)
83   struct Client *
84   make_client(struct Client *from)
85   {
86 <  struct Client *client_p = BlockHeapAlloc(client_heap);
86 >  struct Client *client_p = mp_pool_get(client_pool);
87  
88 <  if (from == NULL)
88 >  if (!from)
89    {
90 <    client_p->from  = client_p; /* 'from' of local client is self! */
91 <    client_p->since = client_p->lasttime = client_p->firsttime = CurrentTime;
90 >    client_p->from                      = client_p; /* 'from' of local client is self! */
91 >    client_p->connection               = mp_pool_get(connection_pool);
92 >    client_p->connection->since        = CurrentTime;
93 >    client_p->connection->lasttime     = CurrentTime;
94 >    client_p->connection->firsttime    = CurrentTime;
95 >    client_p->connection->registration = REG_INIT;
96  
125    client_p->localClient = BlockHeapAlloc(lclient_heap);
126    client_p->localClient->registration = REG_INIT;
97      /* as good a place as any... */
98 <    dlinkAdd(client_p, make_dlink_node(), &unknown_list);
98 >    dlinkAdd(client_p, &client_p->connection->lclient_node, &unknown_list);
99    }
100    else
101      client_p->from = from; /* 'from' of local client is self! */
102  
103 +  client_p->idhnext = client_p;
104    client_p->hnext  = client_p;
105 <  client_p->status = STAT_UNKNOWN;
105 >  SetUnknown(client_p);
106    strcpy(client_p->username, "unknown");
107 +  strcpy(client_p->account, "0");
108  
109    return client_p;
110   }
# Line 147 | Line 119 | make_client(struct Client *from)
119   static void
120   free_client(struct Client *client_p)
121   {
122 <  assert(client_p != NULL);
122 >  assert(client_p);
123    assert(client_p != &me);
124    assert(client_p->hnext == client_p);
125 +  assert(client_p->idhnext == client_p);
126    assert(client_p->channel.head == NULL);
127    assert(dlink_list_length(&client_p->channel) == 0);
128 +  assert(dlink_list_length(&client_p->whowas) == 0);
129 +  assert(!IsServer(client_p) || client_p->serv);
130  
156  MyFree(client_p->away);
131    MyFree(client_p->serv);
132 +  MyFree(client_p->certfp);
133  
134    if (MyConnect(client_p))
135    {
136 <    assert(client_p->localClient->invited.head == NULL);
137 <    assert(dlink_list_length(&client_p->localClient->invited) == 0);
136 >    assert(client_p->connection->invited.head == NULL);
137 >    assert(dlink_list_length(&client_p->connection->invited) == 0);
138 >    assert(dlink_list_length(&client_p->connection->watches) == 0);
139      assert(IsClosing(client_p) && IsDead(client_p));
140  
141 <    MyFree(client_p->localClient->response);
142 <    MyFree(client_p->localClient->auth_oper);
141 >    MyFree(client_p->connection->challenge_response);
142 >    MyFree(client_p->connection->challenge_operator);
143 >    client_p->connection->challenge_response = NULL;
144 >    client_p->connection->challenge_operator = NULL;
145  
146      /*
147 <     * clean up extra sockets from P-lines which have been discarded.
147 >     * Clean up extra sockets from listen{} blocks which have been discarded.
148       */
149 <    if (client_p->localClient->listener)
149 >    if (client_p->connection->listener)
150      {
151 <      assert(0 < client_p->localClient->listener->ref_count);
152 <      if (0 == --client_p->localClient->listener->ref_count &&
175 <          !client_p->localClient->listener->active)
176 <        free_listener(client_p->localClient->listener);
151 >      listener_release(client_p->connection->listener);
152 >      client_p->connection->listener = NULL;
153      }
154  
155 <    dbuf_clear(&client_p->localClient->buf_recvq);
156 <    dbuf_clear(&client_p->localClient->buf_sendq);
155 >    dbuf_clear(&client_p->connection->buf_recvq);
156 >    dbuf_clear(&client_p->connection->buf_sendq);
157  
158 <    BlockHeapFree(lclient_heap, client_p->localClient);
158 >    mp_pool_release(client_p->connection);
159    }
160  
161 <  BlockHeapFree(client_heap, client_p);
186 < }
187 <
188 < /*
189 < * check_pings - go through the local client list and check activity
190 < * kill off stuff that should die
191 < *
192 < * inputs       - NOT USED (from event)
193 < * output       - next time_t when check_pings() should be called again
194 < * side effects -
195 < *
196 < *
197 < * A PING can be sent to clients as necessary.
198 < *
199 < * Client/Server ping outs are handled.
200 < */
201 <
202 < /*
203 < * Addon from adrian. We used to call this after nextping seconds,
204 < * however I've changed it to run once a second. This is only for
205 < * PING timeouts, not K/etc-line checks (thanks dianora!). Having it
206 < * run once a second makes life a lot easier - when a new client connects
207 < * and they need a ping in 4 seconds, if nextping was set to 20 seconds
208 < * we end up waiting 20 seconds. This is stupid. :-)
209 < * I will optimise (hah!) check_pings() once I've finished working on
210 < * tidying up other network IO evilnesses.
211 < *     -- adrian
212 < */
213 <
214 < static void
215 < check_pings(void *notused)
216 < {              
217 <  check_pings_list(&local_client_list);
218 <  check_pings_list(&serv_list);
219 <  check_unknowns_list();
161 >  mp_pool_release(client_p);
162   }
163  
164   /* check_pings_list()
165   *
166   * inputs       - pointer to list to check
167   * output       - NONE
168 < * side effects -
168 > * side effects -
169   */
170   static void
171   check_pings_list(dlink_list *list)
172   {
173 <  char scratch[32];        /* way too generous but... */
174 <  struct Client *client_p; /* current local client_p being examined */
175 <  int ping, pingwarn;      /* ping time value from client */
234 <  dlink_node *ptr, *next_ptr;
173 >  char buf[IRCD_BUFSIZE] = "";
174 >  int ping = 0;      /* ping time value from client */
175 >  dlink_node *node = NULL, *node_next = NULL;
176  
177 <  DLINK_FOREACH_SAFE(ptr, next_ptr, list->head)
177 >  DLINK_FOREACH_SAFE(node, node_next, list->head)
178    {
179 <    client_p = ptr->data;
179 >    struct Client *client_p = node->data;
180  
240    /*
241    ** Note: No need to notify opers here. It's
242    ** already done when "FLAGS_DEADSOCKET" is set.
243    */
181      if (IsDead(client_p))
182 <    {
246 <      /* Ignore it, its been exited already */
247 <      continue;
248 <    }
249 <
250 <    if (client_p->localClient->reject_delay > 0)
251 <    {
252 <      if (client_p->localClient->reject_delay <= CurrentTime)
253 <        exit_client(client_p, &me, "Rejected");
254 <      continue;
255 <    }
256 <
257 <    if (GlobalSetOptions.idletime && IsClient(client_p))
258 <    {
259 <      if (!IsExemptKline(client_p) && !IsOper(client_p) &&
260 <          !IsIdlelined(client_p) &&
261 <          ((CurrentTime - client_p->localClient->last) > GlobalSetOptions.idletime))
262 <      {
263 <        struct ConfItem *conf;
264 <        struct AccessItem *aconf;
265 <
266 <        conf = make_conf_item(KLINE_TYPE);
267 <        aconf = (struct AccessItem *)map_to_conf(conf);
268 <
269 <        DupString(aconf->host, client_p->host);
270 <        DupString(aconf->reason, "idle exceeder");
271 <        DupString(aconf->user, client_p->username);
272 <        aconf->hold = CurrentTime + 60;
273 <        add_temp_line(conf);
274 <
275 <        sendto_realops_flags(UMODE_ALL, L_ALL,
276 <                             "Idle time limit exceeded for %s - temp k-lining",
277 <                             get_client_name(client_p, HIDE_IP));
278 <        exit_client(client_p, &me, aconf->reason);
279 <        continue;
280 <      }
281 <    }
182 >      continue;  /* Ignore it, its been exited already */
183  
184      if (!IsRegistered(client_p))
185 <      ping = CONNECTTIMEOUT, pingwarn = 0;
185 >      ping = CONNECTTIMEOUT;
186      else
187 <      ping = get_client_ping(client_p, &pingwarn);
187 >      ping = get_client_ping(&client_p->connection->confs);
188  
189 <    if (ping < CurrentTime - client_p->lasttime)
189 >    if (ping < CurrentTime - client_p->connection->lasttime)
190      {
191        if (!IsPingSent(client_p))
192        {
193 <        /*
194 <         * if we havent PINGed the connection and we havent
195 <         * heard from it in a while, PING it to make sure
196 <         * it is still alive.
197 <         */
198 <        SetPingSent(client_p);
199 <        ClearPingWarning(client_p);
200 <        client_p->lasttime = CurrentTime - ping;
300 <        sendto_one(client_p, "PING :%s", ID_or_name(&me, client_p));
193 >        /*
194 >         * If we haven't PINGed the connection and we haven't
195 >         * heard from it in a while, PING it to make sure
196 >         * it is still alive.
197 >         */
198 >        SetPingSent(client_p);
199 >        client_p->connection->lasttime = CurrentTime - ping;
200 >        sendto_one(client_p, "PING :%s", ID_or_name(&me, client_p));
201        }
202        else
203        {
204 <        if (CurrentTime - client_p->lasttime >= 2 * ping)
204 >        if (CurrentTime - client_p->connection->lasttime >= 2 * ping)
205          {
206            /*
207             * If the client/server hasn't talked to us in 2*ping seconds
208             * and it has a ping time, then close its connection.
209             */
210            if (IsServer(client_p) || IsHandshake(client_p))
211 <          {
212 <            sendto_realops_flags(UMODE_ALL, L_ADMIN,
213 <                                 "No response from %s, closing link",
214 <                                 get_client_name(client_p, HIDE_IP));
215 <            sendto_realops_flags(UMODE_ALL, L_OPER,
216 <                                 "No response from %s, closing link",
217 <                                 get_client_name(client_p, MASK_IP));
218 <            ilog(L_NOTICE, "No response from %s, closing link",
219 <                 get_client_name(client_p, HIDE_IP));
220 <          }
221 <
222 <          ircsprintf(scratch, "Ping timeout: %d seconds",
223 <                     (int)(CurrentTime - client_p->lasttime));
224 <          exit_client(client_p, &me, scratch);
325 <        }
326 <        else if (!IsPingWarning(client_p) && pingwarn > 0 &&
327 <                 (IsServer(client_p) || IsHandshake(client_p)) &&
328 <                 CurrentTime - client_p->lasttime >= ping + pingwarn)
329 <        {
330 <          /*
331 <           * If the server hasn't replied in pingwarn seconds after sending
332 <           * the PING, notify the opers so that they are aware of the problem.
333 <           */
334 <          SetPingWarning(client_p);
335 <          sendto_realops_flags(UMODE_ALL, L_ADMIN,
336 <                               "Warning, no response from %s in %d seconds",
337 <                               get_client_name(client_p, HIDE_IP), pingwarn);
338 <          sendto_realops_flags(UMODE_ALL, L_OPER,
339 <                               "Warning, no response from %s in %d seconds",
340 <                               get_client_name(client_p, MASK_IP), pingwarn);
341 <          ilog(L_NOTICE, "No response from %s in %d seconds",
342 <               get_client_name(client_p, HIDE_IP), pingwarn);
211 >          {
212 >            sendto_realops_flags(UMODE_ALL, L_ADMIN, SEND_NOTICE,
213 >                                 "No response from %s, closing link",
214 >                                 get_client_name(client_p, HIDE_IP));
215 >            sendto_realops_flags(UMODE_ALL, L_OPER, SEND_NOTICE,
216 >                                 "No response from %s, closing link",
217 >                                 get_client_name(client_p, MASK_IP));
218 >            ilog(LOG_TYPE_IRCD, "No response from %s, closing link",
219 >                 get_client_name(client_p, HIDE_IP));
220 >          }
221 >
222 >          snprintf(buf, sizeof(buf), "Ping timeout: %d seconds",
223 >                   (int)(CurrentTime - client_p->connection->lasttime));
224 >          exit_client(client_p, buf);
225          }
226        }
227      }
# Line 355 | Line 237 | check_pings_list(dlink_list *list)
237   static void
238   check_unknowns_list(void)
239   {
240 <  dlink_node *ptr, *next_ptr;
240 >  dlink_node *node = NULL, *node_next = NULL;
241  
242 <  DLINK_FOREACH_SAFE(ptr, next_ptr, unknown_list.head)
242 >  DLINK_FOREACH_SAFE(node, node_next, unknown_list.head)
243    {
244 <    struct Client *client_p = ptr->data;
363 <
364 <    if (client_p->localClient->reject_delay > 0)
365 <    {
366 <      if (client_p->localClient->reject_delay <= CurrentTime)
367 <        exit_client(client_p, &me, "Rejected");
368 <      continue;
369 <    }
244 >    struct Client *client_p = node->data;
245  
246      /*
247       * Check UNKNOWN connections - if they have been in this state
248       * for > 30s, close them.
249       */
250 <    if (IsAuthFinished(client_p) && (CurrentTime - client_p->firsttime) > 30)
251 <      exit_client(client_p, &me, "Registration timed out");
250 >    if (IsAuthFinished(client_p) && (CurrentTime - client_p->connection->firsttime) > 30)
251 >      exit_client(client_p, "Registration timed out");
252    }
253   }
254  
255 + /*
256 + * check_pings - go through the local client list and check activity
257 + * kill off stuff that should die
258 + *
259 + * inputs       - NOT USED (from event)
260 + * output       - next time_t when check_pings() should be called again
261 + * side effects -
262 + *
263 + *
264 + * A PING can be sent to clients as necessary.
265 + *
266 + * Client/Server ping outs are handled.
267 + */
268 +
269 + /*
270 + * Addon from adrian. We used to call this after nextping seconds,
271 + * however I've changed it to run once a second. This is only for
272 + * PING timeouts, not K/etc-line checks (thanks dianora!). Having it
273 + * run once a second makes life a lot easier - when a new client connects
274 + * and they need a ping in 4 seconds, if nextping was set to 20 seconds
275 + * we end up waiting 20 seconds. This is stupid. :-)
276 + * I will optimise (hah!) check_pings() once I've finished working on
277 + * tidying up other network IO evilnesses.
278 + *     -- adrian
279 + */
280 +
281 + static void
282 + check_pings(void *unused)
283 + {
284 +  check_pings_list(&local_client_list);
285 +  check_pings_list(&local_server_list);
286 +  check_unknowns_list();
287 + }
288 +
289   /* check_conf_klines()
290   *
291   * inputs       - NONE
# Line 384 | Line 293 | check_unknowns_list(void)
293   * side effects - Check all connections for a pending kline against the
294   *                client, exit the client if a kline matches.
295   */
296 < void
296 > void
297   check_conf_klines(void)
298 < {              
299 <  struct Client *client_p = NULL;       /* current local client_p being examined */
300 <  struct AccessItem *aconf = NULL;
392 <  struct ConfItem *conf = NULL;
393 <  dlink_node *ptr, *next_ptr;
298 > {
299 >  struct MaskItem *conf = NULL;
300 >  dlink_node *node = NULL, *node_next = NULL;
301  
302 <  DLINK_FOREACH_SAFE(ptr, next_ptr, local_client_list.head)
302 >  DLINK_FOREACH_SAFE(node, node_next, local_client_list.head)
303    {
304 <    client_p = ptr->data;
304 >    struct Client *client_p = node->data;
305  
306 <    /* If a client is already being exited
307 <     */
401 <    if (IsDead(client_p) || !IsClient(client_p))
306 >    /* If a client is already being exited */
307 >    if (IsDead(client_p))
308        continue;
309  
310 <    /* if there is a returned struct ConfItem then kill it */
311 <    if ((aconf = find_dline_conf(&client_p->localClient->ip,
406 <                                  client_p->localClient->aftype)) != NULL)
310 >    if ((conf = find_conf_by_address(NULL, &client_p->connection->ip, CONF_DLINE,
311 >                                     client_p->connection->aftype, NULL, NULL, 1)))
312      {
313 <      if (aconf->status & CONF_EXEMPTDLINE)
409 <        continue;
410 <
411 <      conf = unmap_conf_item(aconf);
412 <      ban_them(client_p, conf);
313 >      conf_try_ban(client_p, conf);
314        continue; /* and go examine next fd/client_p */
315      }
316  
317 <    if (ConfigFileEntry.glines && (aconf = find_gline(client_p)))
317 >    if (ConfigGeneral.glines)
318      {
319 <      if (IsExemptKline(client_p) ||
320 <          IsExemptGline(client_p))
319 >      if ((conf = find_conf_by_address(client_p->host, &client_p->connection->ip,
320 >                                       CONF_GLINE, client_p->connection->aftype,
321 >                                       client_p->username, NULL, 1)))
322        {
323 <        sendto_realops_flags(UMODE_ALL, L_ALL,
324 <                             "GLINE over-ruled for %s, client is %sline_exempt",
423 <                             get_client_name(client_p, HIDE_IP), IsExemptKline(client_p) ? "k" : "g");
323 >        conf_try_ban(client_p, conf);
324 >        /* and go examine next fd/client_p */
325          continue;
326        }
327 +    }
328  
329 <      conf = unmap_conf_item(aconf);
330 <      ban_them(client_p, conf);
331 <      /* and go examine next fd/client_p */    
430 <      continue;
431 <    }
432 <
433 <    if ((aconf = find_kill(client_p)) != NULL)
329 >    if ((conf = find_conf_by_address(client_p->host, &client_p->connection->ip,
330 >                                     CONF_KLINE, client_p->connection->aftype,
331 >                                     client_p->username, NULL, 1)))
332      {
333 <
334 <      /* if there is a returned struct AccessItem.. then kill it */
437 <      if (IsExemptKline(client_p))
438 <      {
439 <        sendto_realops_flags(UMODE_ALL, L_ALL,
440 <                             "KLINE over-ruled for %s, client is kline_exempt",
441 <                             get_client_name(client_p, HIDE_IP));
442 <        continue;
443 <      }
444 <
445 <      conf = unmap_conf_item(aconf);
446 <      ban_them(client_p, conf);
447 <      continue;
333 >      conf_try_ban(client_p, conf);
334 >      continue;
335      }
336  
337 <    /* if there is a returned struct MatchItem then kill it */
338 <    if ((conf = find_matching_name_conf(XLINE_TYPE,  client_p->info,
452 <                                        NULL, NULL, 0)) != NULL ||
453 <        (conf = find_matching_name_conf(RXLINE_TYPE, client_p->info,
454 <                                        NULL, NULL, 0)) != NULL)
337 >    if ((conf = find_matching_name_conf(CONF_XLINE,  client_p->info,
338 >                                        NULL, NULL, 0)))
339      {
340 <      ban_them(client_p, conf);
340 >      conf_try_ban(client_p, conf);
341        continue;
342      }
343    }
344  
345    /* also check the unknowns list for new dlines */
346 <  DLINK_FOREACH_SAFE(ptr, next_ptr, unknown_list.head)
346 >  DLINK_FOREACH_SAFE(node, node_next, unknown_list.head)
347    {
348 <    client_p = ptr->data;
348 >    struct Client *client_p = node->data;
349  
350 <    if ((aconf = find_dline_conf(&client_p->localClient->ip,
351 <                                  client_p->localClient->aftype)))
350 >    if ((conf = find_conf_by_address(NULL, &client_p->connection->ip, CONF_DLINE,
351 >                                     client_p->connection->aftype, NULL, NULL, 1)))
352      {
353 <      if (aconf->status & CONF_EXEMPTDLINE)
354 <        continue;
471 <
472 <      exit_client(client_p, &me, "D-lined");
353 >      conf_try_ban(client_p, conf);
354 >      continue; /* and go examine next fd/client_p */
355      }
356    }
357   }
358  
359   /*
360 < * ban_them
360 > * conf_try_ban
361   *
362   * inputs       - pointer to client to ban
363 < *              - pointer to ConfItem
363 > *              - pointer to MaskItem
364   * output       - NONE
365   * side effects - given client_p is banned
366   */
367 < static void
368 < ban_them(struct Client *client_p, struct ConfItem *conf)
367 > void
368 > conf_try_ban(struct Client *client_p, struct MaskItem *conf)
369   {
370 <  const char *user_reason = NULL;       /* What is sent to user */
489 <  const char *channel_reason = NULL;    /* What is sent to channel */
490 <  struct AccessItem *aconf = NULL;
491 <  struct MatchItem *xconf = NULL;
370 >  const char *user_reason = NULL;  /* What is sent to user */
371    const char *type_string = NULL;
372    const char dline_string[] = "D-line";
373    const char kline_string[] = "K-line";
# Line 497 | Line 376 | ban_them(struct Client *client_p, struct
376  
377    switch (conf->type)
378    {
379 <    case RKLINE_TYPE:
380 <    case KLINE_TYPE:
379 >    case CONF_KLINE:
380 >      if (IsExemptKline(client_p))
381 >      {
382 >        sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
383 >                             "KLINE over-ruled for %s, client is kline_exempt",
384 >                             get_client_name(client_p, HIDE_IP));
385 >        return;
386 >      }
387 >
388        type_string = kline_string;
503      aconf = map_to_conf(conf);
389        break;
390 <    case DLINE_TYPE:
390 >    case CONF_DLINE:
391 >      if (find_conf_by_address(NULL, &client_p->connection->ip, CONF_EXEMPT,
392 >                               client_p->connection->aftype, NULL, NULL, 1))
393 >        return;
394        type_string = dline_string;
507      aconf = map_to_conf(conf);
395        break;
396 <    case GLINE_TYPE:
396 >    case CONF_GLINE:
397 >      if (IsExemptKline(client_p) ||
398 >          IsExemptGline(client_p))
399 >      {
400 >        sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
401 >                             "GLINE over-ruled for %s, client is %sline_exempt",
402 >                             get_client_name(client_p, HIDE_IP), IsExemptKline(client_p) ? "k" : "g");
403 >        return;
404 >      }
405 >
406        type_string = gline_string;
511      aconf = map_to_conf(conf);
407        break;
408 <    case RXLINE_TYPE:
514 <    case XLINE_TYPE:
408 >    case CONF_XLINE:
409        type_string = xline_string;
410 <      xconf = map_to_conf(conf);
517 <      ++xconf->count;
410 >      ++conf->count;
411        break;
412      default:
413        assert(0);
414        break;
415    }
416  
417 <  if (ConfigFileEntry.kline_with_reason)
525 <  {
526 <    if (aconf != NULL)
527 <      user_reason = aconf->reason ? aconf->reason : type_string;
528 <    if (xconf != NULL)
529 <      user_reason = xconf->reason ? xconf->reason : type_string;
530 <  }
531 <  else
532 <    user_reason = type_string;
533 <
534 <  if (ConfigFileEntry.kline_reason != NULL)
535 <    channel_reason = ConfigFileEntry.kline_reason;
536 <  else
537 <    channel_reason = user_reason;
417 >  user_reason = conf->reason ? conf->reason : type_string;
418  
419 <  sendto_realops_flags(UMODE_ALL, L_ALL, "%s active for %s",
419 >  sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE, "%s active for %s",
420                         type_string, get_client_name(client_p, HIDE_IP));
421  
422    if (IsClient(client_p))
423 <    sendto_one(client_p, form_str(ERR_YOUREBANNEDCREEP),
544 <               me.name, client_p->name, user_reason);
423 >    sendto_one_numeric(client_p, &me, ERR_YOUREBANNEDCREEP, user_reason);
424  
425 <  exit_client(client_p, &me, channel_reason);
425 >  exit_client(client_p, user_reason);
426   }
427  
428   /* update_client_exit_stats()
429   *
430   * input        - pointer to client
431   * output       - NONE
432 < * side effects -
432 > * side effects -
433   */
434   static void
435   update_client_exit_stats(struct Client *client_p)
436   {
437 <  if (IsServer(client_p))
559 <  {
560 <    sendto_realops_flags(UMODE_EXTERNAL, L_ALL,
561 <                         "Server %s split from %s",
562 <                         client_p->name, client_p->servptr->name);
563 <  }
564 <  else if (IsClient(client_p))
437 >  if (IsClient(client_p))
438    {
439 +    assert(Count.total > 0);
440      --Count.total;
441 <    if (IsOper(client_p))
441 >    if (HasUMode(client_p, UMODE_OPER))
442        --Count.oper;
443 <    if (IsInvisible(client_p))
443 >    if (HasUMode(client_p, UMODE_INVISIBLE))
444        --Count.invisi;
445    }
446 +  else if (IsServer(client_p))
447 +    sendto_realops_flags(UMODE_EXTERNAL, L_ALL, SEND_NOTICE,
448 +                         "Server %s split from %s",
449 +                         client_p->name, client_p->servptr->name);
450  
451    if (splitchecking && !splitmode)
452      check_splitmode(NULL);
# Line 580 | Line 458 | update_client_exit_stats(struct Client *
458   * output       - return client pointer
459   * side effects - find person by (nick)name
460   */
583 /* XXX - ugly wrapper */
461   struct Client *
462 < find_person(const struct Client *client_p, const char *name)
462 > find_person(const struct Client *const source_p, const char *name)
463   {
464 <  struct Client *c2ptr;
464 >  struct Client *target_p = NULL;
465  
466    if (IsDigit(*name))
467    {
468 <    if ((c2ptr = hash_find_id(name)) != NULL)
469 <    {
593 <      /* invisible users shall not be found by UID guessing */
594 <      if (IsInvisible(c2ptr) && !IsServer(client_p))
595 <        c2ptr = NULL;
596 <    }
468 >    if (IsServer(source_p->from))
469 >      target_p = hash_find_id(name);
470    }
471    else
472 <    c2ptr = find_client(name);
472 >    target_p = hash_find_client(name);
473  
474 <  return ((c2ptr != NULL && IsClient(c2ptr)) ? c2ptr : NULL);
474 >  return (target_p && IsClient(target_p)) ? target_p : NULL;
475   }
476  
477   /*
478 < * find_chasing - find the client structure for a nick name (user)
479 < *      using history mechanism if necessary. If the client is not found,
480 < *      an error message (NO SUCH NICK) is generated. If the client was found
608 < *      through the history, chasing will be 1 and otherwise 0.
478 > * find_chasing - find the client structure for a nick name (name)
479 > *      using history mechanism if necessary. If the client is not found,
480 > *      an error message (NO SUCH NICK) is generated.
481   */
482   struct Client *
483 < find_chasing(struct Client *client_p, struct Client *source_p, const char *user, int *chasing)
483 > find_chasing(struct Client *source_p, const char *name)
484   {
485 <  struct Client *who = find_person(client_p, user);
485 >  struct Client *target_p = find_person(source_p, name);
486  
487 <  if (chasing)
488 <    *chasing = 0;
487 >  if (target_p)
488 >    return target_p;
489  
490 <  if (who)
491 <    return(who);
490 >  if (IsDigit(*name))
491 >    return NULL;
492  
493 <  if (IsDigit(*user))
622 <    return(NULL);
493 >  target_p = whowas_get_history(name, (time_t)ConfigGeneral.kill_chase_time_limit);
494  
495 <  if ((who = get_history(user,
625 <                        (time_t)ConfigFileEntry.kill_chase_time_limit))
626 <                         == NULL)
495 >  if (!target_p)
496    {
497 <    sendto_one(source_p, form_str(ERR_NOSUCHNICK),
498 <               me.name, source_p->name, user);
630 <    return(NULL);
497 >    sendto_one_numeric(source_p, &me, ERR_NOSUCHNICK, name);
498 >    return NULL;
499    }
500  
501 <  if (chasing)
634 <    *chasing = 1;
635 <
636 <  return(who);
501 >  return target_p;
502   }
503  
504   /*
# Line 645 | Line 510 | find_chasing(struct Client *client_p, st
510   *        But, this can be used to any client structure.
511   *
512   * NOTE 1:
513 < *        Watch out the allocation of "nbuf", if either source_p->name
513 > *        Watch out the allocation of "buf", if either source_p->name
514   *        or source_p->sockhost gets changed into pointers instead of
515   *        directly allocated within the structure...
516   *
517   * NOTE 2:
518   *        Function return either a pointer to the structure (source_p) or
519 < *        to internal buffer (nbuf). *NEVER* use the returned pointer
519 > *        to internal buffer (buf). *NEVER* use the returned pointer
520   *        to modify what it points!!!
521   */
522   const char *
523 < get_client_name(struct Client *client, int showip)
523 > get_client_name(const struct Client *client_p, enum addr_mask_type type)
524   {
525 <  static char nbuf[HOSTLEN * 2 + USERLEN + 5];
661 <
662 <  assert(client != NULL);
525 >  static char buf[HOSTLEN * 2 + USERLEN + 5];
526  
527 <  if (irccmp(client->name, client->host) == 0)
665 <    return(client->name);
527 >  assert(client_p);
528  
529 <  if (ConfigServerHide.hide_server_ips)
530 <    if (IsServer(client) || IsConnecting(client) || IsHandshake(client))
669 <      showip = MASK_IP;
529 >  if (!MyConnect(client_p))
530 >    return client_p->name;
531  
532 <  if (ConfigFileEntry.hide_spoof_ips)
533 <    if (showip == SHOW_IP && IsIPSpoof(client))
534 <      showip = MASK_IP;
532 >  if (IsServer(client_p) || IsConnecting(client_p) || IsHandshake(client_p))
533 >  {
534 >    if (!irccmp(client_p->name, client_p->host))
535 >      return client_p->name;
536 >    else if (ConfigServerHide.hide_server_ips)
537 >      type = MASK_IP;
538 >  }
539  
540    /* And finally, let's get the host information, ip or name */
541 <  switch (showip)
541 >  switch (type)
542    {
543      case SHOW_IP:
544 <      if (MyConnect(client))
545 <      {
546 <        ircsprintf(nbuf, "%s[%s@%s]", client->name, client->username,
547 <                   client->sockhost);
683 <        break;
684 <      }
544 >      snprintf(buf, sizeof(buf), "%s[%s@%s]",
545 >               client_p->name,
546 >               client_p->username, client_p->sockhost);
547 >      break;
548      case MASK_IP:
549 <      ircsprintf(nbuf, "%s[%s@255.255.255.255]", client->name,
550 <                 client->username);
549 >      if (client_p->connection->aftype == AF_INET)
550 >        snprintf(buf, sizeof(buf), "%s[%s@255.255.255.255]",
551 >                 client_p->name, client_p->username);
552 >      else
553 >        snprintf(buf, sizeof(buf), "%s[%s@ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff]",
554 >                 client_p->name, client_p->username);
555        break;
556      default:
557 <      ircsprintf(nbuf, "%s[%s@%s]", client->name, client->username,
558 <                 client->host);
557 >      snprintf(buf, sizeof(buf), "%s[%s@%s]",
558 >               client_p->name,
559 >               client_p->username, client_p->host);
560    }
561  
562 <  return(nbuf);
562 >  return buf;
563   }
564  
565   void
566   free_exited_clients(void)
567   {
568 <  dlink_node *ptr, *next;
701 <  struct Client *target_p;
702 <  
703 <  DLINK_FOREACH_SAFE(ptr, next, dead_list.head)
704 <  {
705 <    target_p = ptr->data;
706 <
707 <    if (ptr->data == NULL)
708 <    {
709 <      sendto_realops_flags(UMODE_ALL, L_ALL,
710 <                           "Warning: null client on dead_list!");
711 <      dlinkDelete(ptr, &dead_list);
712 <      free_dlink_node(ptr);
713 <      continue;
714 <    }
568 >  dlink_node *node = NULL, *node_next = NULL;
569  
570 <    free_client(target_p);
571 <    dlinkDelete(ptr, &dead_list);
572 <    free_dlink_node(ptr);
570 >  DLINK_FOREACH_SAFE(node, node_next, dead_list.head)
571 >  {
572 >    free_client(node->data);
573 >    dlinkDelete(node, &dead_list);
574 >    free_dlink_node(node);
575    }
576   }
577  
# Line 726 | Line 582 | free_exited_clients(void)
582   * The only messages generated are QUITs on channels.
583   */
584   static void
585 < exit_one_client(struct Client *source_p, const char *quitmsg)
585 > exit_one_client(struct Client *source_p, const char *comment)
586   {
587 <  dlink_node *lp = NULL, *next_lp = NULL;
587 >  dlink_node *node = NULL, *node_next = NULL;
588  
589    assert(!IsMe(source_p));
590 +  assert(source_p != &me);
591  
592 <  if (IsServer(source_p))
592 >  if (IsClient(source_p))
593    {
594 <    dlinkDelete(&source_p->lnode, &source_p->servptr->serv->servers);
594 >    dlinkDelete(&source_p->lnode, &source_p->servptr->serv->client_list);
595 >    dlinkDelete(&source_p->node, &global_client_list);
596  
597 <    if ((lp = dlinkFindDelete(&global_serv_list, source_p)) != NULL)
598 <      free_dlink_node(lp);
597 >    /*
598 >     * If a person is on a channel, send a QUIT notice
599 >     * to every client (person) on the same channel (so
600 >     * that the client can show the "**signoff" message).
601 >     * (Note: The notice is to the local clients *only*)
602 >     */
603 >    sendto_common_channels_local(source_p, 0, 0, ":%s!%s@%s QUIT :%s",
604 >                                 source_p->name, source_p->username,
605 >                                 source_p->host, comment);
606  
607 <    if (!MyConnect(source_p))
608 <    {
744 <      source_p->from->serv->dep_servers--;
745 <      assert(source_p->from->serv->dep_servers > 0);
746 <    }
747 <  }
748 <  else if (IsClient(source_p))
749 <  {
750 <    if (source_p->servptr->serv != NULL)
751 <      dlinkDelete(&source_p->lnode, &source_p->servptr->serv->users);
607 >    DLINK_FOREACH_SAFE(node, node_next, source_p->channel.head)
608 >      remove_user_from_channel(node->data);
609  
610 <    /* If a person is on a channel, send a QUIT notice
611 <    ** to every client (person) on the same channel (so
755 <    ** that the client can show the "**signoff" message).
756 <    ** (Note: The notice is to the local clients *only*)
757 <    */
758 <    sendto_common_channels_local(source_p, 0, ":%s!%s@%s QUIT :%s",
759 <                                 source_p->name, source_p->username,
760 <                                 source_p->host, quitmsg);
761 <    DLINK_FOREACH_SAFE(lp, next_lp, source_p->channel.head)
762 <      remove_user_from_channel(lp->data);
763 <
764 <    /* Clean up allow lists */
765 <    del_all_accepts(source_p);
766 <    add_history(source_p, 0);
767 <    off_history(source_p);
610 >    whowas_add_history(source_p, 0);
611 >    whowas_off_history(source_p);
612  
613      watch_check_hash(source_p, RPL_LOGOFF);
614  
615 <    if (!MyConnect(source_p))
772 <    {
773 <      source_p->from->serv->dep_users--;
774 <      assert(source_p->from->serv->dep_users >= 0);
775 <    }
776 <    else
615 >    if (MyConnect(source_p))
616      {
617        /* Clean up invitefield */
618 <      DLINK_FOREACH_SAFE(lp, next_lp, source_p->localClient->invited.head)
619 <        del_invite(lp->data, source_p);
618 >      DLINK_FOREACH_SAFE(node, node_next, source_p->connection->invited.head)
619 >        del_invite(node->data, source_p);
620 >
621 >      del_all_accepts(source_p);
622      }
623    }
624 +  else if (IsServer(source_p))
625 +  {
626 +    dlinkDelete(&source_p->lnode, &source_p->servptr->serv->server_list);
627 +    dlinkDelete(&source_p->node, &global_client_list);
628 +
629 +    if ((node = dlinkFindDelete(&global_server_list, source_p)))
630 +      free_dlink_node(node);
631 +  }
632  
633    /* Remove source_p from the client lists */
634 <  if (HasID(source_p))
634 >  if (source_p->id[0])
635      hash_del_id(source_p);
636 +
637    if (source_p->name[0])
638      hash_del_client(source_p);
639  
640    if (IsUserHostIp(source_p))
641      delete_user_host(source_p->username, source_p->host, !MyConnect(source_p));
642  
793  /* remove from global client list
794   * NOTE: source_p->node.next cannot be NULL if the client is added
795   *       to global_client_list (there is always &me at its end)
796   */
797  if (source_p != NULL && source_p->node.next != NULL)
798    dlinkDelete(&source_p->node, &global_client_list);
799
643    update_client_exit_stats(source_p);
644  
645    /* Check to see if the client isn't already on the dead list */
# Line 807 | Line 650 | exit_one_client(struct Client *source_p,
650    dlinkAdd(source_p, make_dlink_node(), &dead_list);
651   }
652  
653 < /* Recursively send QUITs and SQUITs for source_p and all its dependent clients
811 < * and servers to those servers that need them.  A server needs the client
812 < * QUITs if it can't figure them out from the SQUIT (ie pre-TS4) or if it
813 < * isn't getting the SQUIT because of @#(*&@)# hostmasking.  With TS4, once
814 < * a link gets a SQUIT, it doesn't need any QUIT/SQUITs for clients depending
815 < * on that one -orabidoo
816 < *
817 < * This is now called on each local server -adx
818 < */
819 < static void
820 < recurse_send_quits(struct Client *original_source_p, struct Client *source_p,
821 <                   struct Client *from, struct Client *to, const char *comment,
822 <                   const char *splitstr, const char *myname)
823 < {
824 <  dlink_node *ptr, *next;
825 <  struct Client *target_p;
826 <  int hidden = match(myname, source_p->name);
827 <
828 <  assert(to != source_p);  /* should be already removed from serv_list */
829 <
830 <  /* If this server can handle quit storm (QS) removal
831 <   * of dependents, just send the SQUIT
832 <   *
833 <   * Always check *all* dependent servers if some of them are
834 <   * hidden behind fakename. If so, send out the QUITs -adx
835 <   */
836 <  if (hidden || !IsCapable(to, CAP_QS))
837 <    DLINK_FOREACH_SAFE(ptr, next, source_p->serv->users.head)
838 <    {
839 <      target_p = ptr->data;
840 <      sendto_one(to, ":%s QUIT :%s", target_p->name, splitstr);
841 <    }
842 <
843 <  DLINK_FOREACH_SAFE(ptr, next, source_p->serv->servers.head)
844 <    recurse_send_quits(original_source_p, ptr->data, from, to,
845 <                       comment, splitstr, myname);
846 <
847 <  if (!hidden && ((source_p == original_source_p && to != from) ||
848 <                  !IsCapable(to, CAP_QS)))
849 <  {
850 <    /* don't use a prefix here - we have to be 100% sure the message
851 <     * will be accepted without Unknown prefix etc.. */
852 <    sendto_one(to, "SQUIT %s :%s", ID_or_name(source_p, to), comment);
853 <  }
854 < }
855 <
856 < /*
653 > /*
654   * Remove all clients that depend on source_p; assumes all (S)QUITs have
655 < * already been sent.  we make sure to exit a server's dependent clients
656 < * and servers before the server itself; exit_one_client takes care of
655 > * already been sent.  we make sure to exit a server's dependent clients
656 > * and servers before the server itself; exit_one_client takes care of
657   * actually removing things off llists.   tweaked from +CSr31  -orabidoo
658   */
659   static void
660 < recurse_remove_clients(struct Client *source_p, const char *quitmsg)
660 > recurse_remove_clients(struct Client *source_p, const char *comment)
661   {
662 <  dlink_node *ptr, *next;
662 >  dlink_node *node = NULL, *node_next = NULL;
663  
664 <  DLINK_FOREACH_SAFE(ptr, next, source_p->serv->users.head)
665 <    exit_one_client(ptr->data, quitmsg);
664 >  DLINK_FOREACH_SAFE(node, node_next, source_p->serv->client_list.head)
665 >    exit_one_client(node->data, comment);
666  
667 <  DLINK_FOREACH_SAFE(ptr, next, source_p->serv->servers.head)
667 >  DLINK_FOREACH_SAFE(node, node_next, source_p->serv->server_list.head)
668    {
669 <    recurse_remove_clients(ptr->data, quitmsg);
670 <    exit_one_client(ptr->data, quitmsg);
669 >    recurse_remove_clients(node->data, comment);
670 >    exit_one_client(node->data, comment);
671    }
875
876  assert(source_p->serv->dep_servers == 1);
877  assert(source_p->serv->dep_users == 0);
878 }
879
880 /*
881 ** Remove *everything* that depends on source_p, from all lists, and sending
882 ** all necessary QUITs and SQUITs.  source_p itself is still on the lists,
883 ** and its SQUITs have been sent except for the upstream one  -orabidoo
884 */
885 static void
886 remove_dependents(struct Client *source_p, struct Client *from,
887                  const char *comment, const char *splitstr)
888 {
889  struct Client *to;
890  struct ConfItem *conf;
891  static char myname[HOSTLEN+1];
892  dlink_node *ptr;
893
894  DLINK_FOREACH(ptr, serv_list.head)
895  {
896    to = ptr->data;
897
898    if ((conf = to->serv->sconf) != NULL)
899      strlcpy(myname, my_name_for_link(conf), sizeof(myname));
900    else
901      strlcpy(myname, me.name, sizeof(myname));
902    recurse_send_quits(source_p, source_p, from, to,
903                       comment, splitstr, myname);
904  }
905
906  recurse_remove_clients(source_p, splitstr);
672   }
673  
674   /*
# Line 911 | Line 676 | remove_dependents(struct Client *source_
676   * this on any struct Client, regardless of its state.
677   *
678   * Note, you shouldn't exit remote _users_ without first doing
679 < * SetKilled and propagating a kill or similar message. However,
680 < * it is perfectly correct to call exit_client to force a _server_
679 > * AddFlag(x, FLAGS_KILLED) and propagating a kill or similar message.
680 > *
681 > * However, it is perfectly correct to call exit_client to force a _server_
682   * quit (either local or remote one).
683   *
684 + *
685   * inputs:       - a client pointer that is going to be exited
919 *               - for servers, the second argument is a pointer to who
920 *                 is firing the server. This side won't get any generated
921 *                 messages. NEVER NULL!
686   * output:       none
687   * side effects: the client is delinked from all lists, disconnected,
688   *               and the rest of IRC network is notified of the exit.
689   *               Client memory is scheduled to be freed
690   */
691   void
692 < exit_client(struct Client *source_p, struct Client *from, const char *comment)
692 > exit_client(struct Client *source_p, const char *comment)
693   {
694 <  dlink_node *m;
694 >  dlink_node *node = NULL;
695 >
696 >  assert(!IsMe(source_p));
697 >  assert(source_p != &me);
698  
699    if (MyConnect(source_p))
700    {
# Line 939 | Line 706 | exit_client(struct Client *source_p, str
706  
707      SetClosing(source_p);
708  
709 <    if (IsIpHash(source_p))
710 <      remove_one_ip(&source_p->localClient->ip);
709 >    if (HasFlag(source_p, FLAGS_IPHASH))
710 >    {
711 >      DelFlag(source_p, FLAGS_IPHASH);
712 >      ipcache_remove_address(&source_p->connection->ip);
713 >    }
714  
715 <    delete_auth(source_p);
715 >    delete_auth(&source_p->connection->auth);
716  
717 <    /* This source_p could have status of one of STAT_UNKNOWN, STAT_CONNECTING
717 >    /*
718 >     * This source_p could have status of one of STAT_UNKNOWN, STAT_CONNECTING
719       * STAT_HANDSHAKE or STAT_UNKNOWN
720       * all of which are lumped together into unknown_list
721       *
# Line 952 | Line 723 | exit_client(struct Client *source_p, str
723       */
724      if (!IsRegistered(source_p))
725      {
726 <      if ((m = dlinkFindDelete(&unknown_list, source_p)) != NULL)
727 <        free_dlink_node(m);
726 >      assert(dlinkFind(&unknown_list, source_p));
727 >
728 >      dlinkDelete(&source_p->connection->lclient_node, &unknown_list);
729      }
730      else if (IsClient(source_p))
731      {
732 <      Count.local--;
732 >      time_t on_for = CurrentTime - source_p->connection->firsttime;
733  
734 <      if (IsOper(source_p))
735 <      {
736 <        if ((m = dlinkFindDelete(&oper_list, source_p)) != NULL)
737 <          free_dlink_node(m);
738 <      }
734 >      assert(Count.local > 0);
735 >      --Count.local;
736 >
737 >      if (HasUMode(source_p, UMODE_OPER))
738 >        if ((node = dlinkFindDelete(&oper_list, source_p)))
739 >          free_dlink_node(node);
740  
741 <      dlinkDelete(&source_p->localClient->lclient_node, &local_client_list);
742 <      if (source_p->localClient->list_task != NULL)
743 <        free_list_task(source_p->localClient->list_task, source_p);
741 >      assert(dlinkFind(&local_client_list, source_p));
742 >      dlinkDelete(&source_p->connection->lclient_node, &local_client_list);
743 >
744 >      if (source_p->connection->list_task)
745 >        free_list_task(source_p);
746  
747        watch_del_watch_list(source_p);
748 <      sendto_realops_flags(UMODE_CCONN, L_ALL, "Client exiting: %s (%s@%s) [%s] [%s]",
748 >      sendto_realops_flags(UMODE_CCONN, L_ALL, SEND_NOTICE,
749 >                           "Client exiting: %s (%s@%s) [%s] [%s]",
750                             source_p->name, source_p->username, source_p->host, comment,
751 <                           ConfigFileEntry.hide_spoof_ips && IsIPSpoof(source_p) ?
976 <                           "255.255.255.255" : source_p->sockhost);
977 <      sendto_realops_flags(UMODE_CCONN_FULL, L_ALL, "CLIEXIT: %s %s %s %s 0 %s",
978 <                           source_p->name,
979 <                           source_p->username,
980 <                           source_p->host,
981 <
982 <                           ConfigFileEntry.hide_spoof_ips && IsIPSpoof(source_p) ?
983 <                           "255.255.255.255" : source_p->sockhost,
984 <                           comment);
985 <    }
751 >                           source_p->sockhost);
752  
753 <    /* As soon as a client is known to be a server of some sort
754 <     * it has to be put on the serv_list, or SJOIN's to this new server
755 <     * from the connect burst will not be seen.
756 <     */
757 <    if (IsServer(source_p) || IsConnecting(source_p) ||
758 <        IsHandshake(source_p))
753 >      ilog(LOG_TYPE_USER, "%s (%3u:%02u:%02u): %s!%s@%s %llu/%llu",
754 >           myctime(source_p->connection->firsttime), (unsigned int)(on_for / 3600),
755 >           (unsigned int)((on_for % 3600)/60), (unsigned int)(on_for % 60),
756 >           source_p->name, source_p->username, source_p->host,
757 >           source_p->connection->send.bytes>>10,
758 >           source_p->connection->recv.bytes>>10);
759 >    }
760 >    else if (IsServer(source_p))
761      {
762 <      if ((m = dlinkFindDelete(&serv_list, source_p)) != NULL)
763 <      {
996 <        free_dlink_node(m);
997 <        unset_chcap_usage_counts(source_p);
998 <      }
762 >      assert(Count.myserver > 0);
763 >      --Count.myserver;
764  
765 <      if (IsServer(source_p))
766 <      {
1002 <        Count.myserver--;
1003 <        if (ServerInfo.hub)
1004 <          remove_lazylink_flags(source_p->localClient->serverMask);
1005 <        else
1006 <          uplink = NULL;
1007 <      }
765 >      assert(dlinkFind(&local_server_list, source_p));
766 >      dlinkDelete(&source_p->connection->lclient_node, &local_server_list);
767      }
768  
1010    log_user_exit(source_p);
1011
769      if (!IsDead(source_p))
770      {
771        if (IsServer(source_p))
772        {
773 <        /* for them, we are exiting the network */
774 <        sendto_one(source_p, ":%s SQUIT %s :%s",
775 <                   ID_or_name(from, source_p), me.name, comment);
773 >        if (!HasFlag(source_p, FLAGS_SQUIT))
774 >        {
775 >          /* for them, we are exiting the network */
776 >          sendto_one(source_p, ":%s SQUIT %s :%s",
777 >                     me.id, me.id, comment);
778 >        }
779        }
780  
781        sendto_one(source_p, "ERROR :Closing Link: %s (%s)",
782                   source_p->host, comment);
783      }
784  
1025    /*
1026    ** Currently only server connections can have
1027    ** depending remote clients here, but it does no
1028    ** harm to check for all local clients. In
1029    ** future some other clients than servers might
1030    ** have remotes too...
1031    **
1032    ** Close the Client connection first and mark it
1033    ** so that no messages are attempted to send to it.
1034    ** Remember it makes source_p->from == NULL.
1035    */
785      close_connection(source_p);
786    }
787 +  else if (IsClient(source_p) && HasFlag(source_p->servptr, FLAGS_EOB))
788 +    sendto_realops_flags(UMODE_FARCONNECT, L_ALL, SEND_NOTICE,
789 +                         "Client exiting at %s: %s (%s@%s) [%s]",
790 +                         source_p->servptr->name, source_p->name,
791 +                         source_p->username, source_p->host, comment);
792  
793    if (IsServer(source_p))
794    {
795 <    char splitstr[HOSTLEN + HOSTLEN + 2];
795 >    char splitstr[HOSTLEN + HOSTLEN + 2] = "";
796  
797      /* This shouldn't ever happen */
798 <    assert(source_p->serv != NULL && source_p->servptr != NULL);
798 >    assert(source_p->serv && source_p->servptr);
799  
800      if (ConfigServerHide.hide_servers)
801 <      /* set netsplit message to "*.net *.split" to still show
801 >      /*
802 >       * Set netsplit message to "*.net *.split" to still show
803         * that its a split, but hide the servers splitting
804         */
805 <      strcpy(splitstr, "*.net *.split");
805 >      strlcpy(splitstr, "*.net *.split", sizeof(splitstr));
806      else
807        snprintf(splitstr, sizeof(splitstr), "%s %s",
808                 source_p->servptr->name, source_p->name);
809  
810 <    remove_dependents(source_p, from->from, comment, splitstr);
811 <
812 <    if (source_p->servptr == &me)
813 <    {
814 <      sendto_realops_flags(UMODE_ALL, L_ALL,
815 <                           "%s was connected for %d seconds.  %llu/%llu sendK/recvK.",
816 <                           source_p->name, (int)(CurrentTime - source_p->firsttime),
817 <                           source_p->localClient->send.bytes >> 10,
818 <                           source_p->localClient->recv.bytes >> 10);
819 <      ilog(L_NOTICE, "%s was connected for %d seconds.  %llu/%llu sendK/recvK.",
820 <           source_p->name, (int)(CurrentTime - source_p->firsttime),
821 <           source_p->localClient->send.bytes >> 10,
822 <           source_p->localClient->recv.bytes >> 10);
823 <    }
824 <  }
825 <  else if (IsClient(source_p) && !IsKilled(source_p))
826 <  {
827 <    sendto_server(from->from, source_p, NULL, CAP_TS6, NOCAPS, NOFLAGS,
828 <                  ":%s QUIT :%s", ID(source_p), comment);
829 <    sendto_server(from->from, source_p, NULL, NOCAPS, CAP_TS6, NOFLAGS,
830 <                  ":%s QUIT :%s", source_p->name, comment);
831 <  }
810 >    /* Send SQUIT for source_p in every direction. source_p is already off of local_server_list here */
811 >    if (!HasFlag(source_p, FLAGS_SQUIT))
812 >      sendto_server(NULL, 0, 0, "SQUIT %s :%s", source_p->id, comment);
813 >
814 >    /* Now exit the clients internally */
815 >    recurse_remove_clients(source_p, splitstr);
816 >
817 >    if (MyConnect(source_p))
818 >    {
819 >      int connected = CurrentTime - source_p->connection->firsttime;
820 >      sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
821 >                           "%s was connected for %d day%s, %2d:%02d:%02d. %llu/%llu sendK/recvK.",
822 >                           source_p->name, connected/86400, (connected/86400 == 1) ? "" : "s",
823 >                           (connected % 86400) / 3600, (connected % 3600) / 60, connected % 60,
824 >                           source_p->connection->send.bytes >> 10,
825 >                           source_p->connection->recv.bytes >> 10);
826 >      ilog(LOG_TYPE_IRCD, "%s was connected for %d day%s, %2d:%02d:%02d. %llu/%llu sendK/recvK.",
827 >           source_p->name, connected/86400, (connected/86400 == 1) ? "" : "s",
828 >          (connected % 86400) / 3600, (connected % 3600) / 60, connected % 60,
829 >          source_p->connection->send.bytes >> 10,
830 >          source_p->connection->recv.bytes >> 10);
831 >    }
832 >  }
833 >  else if (IsClient(source_p) && !HasFlag(source_p, FLAGS_KILLED))
834 >    sendto_server(source_p->from, 0, 0, ":%s QUIT :%s",
835 >                  source_p->id, comment);
836  
837    /* The client *better* be off all of the lists */
838    assert(dlinkFind(&unknown_list, source_p) == NULL);
839    assert(dlinkFind(&local_client_list, source_p) == NULL);
840 <  assert(dlinkFind(&serv_list, source_p) == NULL);
840 >  assert(dlinkFind(&local_server_list, source_p) == NULL);
841    assert(dlinkFind(&oper_list, source_p) == NULL);
842  
843    exit_one_client(source_p, comment);
# Line 1091 | Line 850 | exit_client(struct Client *source_p, str
850   void
851   dead_link_on_write(struct Client *client_p, int ierrno)
852   {
853 <  dlink_node *ptr;
853 >  dlink_node *node;
854  
855    if (IsDefunct(client_p))
856      return;
857  
858 <  dbuf_clear(&client_p->localClient->buf_recvq);
859 <  dbuf_clear(&client_p->localClient->buf_sendq);
858 >  dbuf_clear(&client_p->connection->buf_recvq);
859 >  dbuf_clear(&client_p->connection->buf_sendq);
860  
861    assert(dlinkFind(&abort_list, client_p) == NULL);
862 <  ptr = make_dlink_node();
862 >  node = make_dlink_node();
863    /* don't let exit_aborted_clients() finish yet */
864 <  dlinkAddTail(client_p, ptr, &abort_list);
864 >  dlinkAddTail(client_p, node, &abort_list);
865  
866    if (eac_next == NULL)
867 <    eac_next = ptr;
867 >    eac_next = node;
868  
869    SetDead(client_p); /* You are dead my friend */
870   }
# Line 1117 | Line 876 | dead_link_on_write(struct Client *client
876   void
877   dead_link_on_read(struct Client *client_p, int error)
878   {
879 <  char errmsg[255];
879 >  char errmsg[IRCD_BUFSIZE];
880    int current_error;
881  
882    if (IsDefunct(client_p))
883      return;
884  
885 <  dbuf_clear(&client_p->localClient->buf_recvq);
886 <  dbuf_clear(&client_p->localClient->buf_sendq);
885 >  dbuf_clear(&client_p->connection->buf_recvq);
886 >  dbuf_clear(&client_p->connection->buf_sendq);
887  
888 <  current_error = get_sockerr(client_p->localClient->fd.fd);
888 >  current_error = get_sockerr(client_p->connection->fd.fd);
889  
890    if (IsServer(client_p) || IsHandshake(client_p))
891    {
892 <    int connected = CurrentTime - client_p->firsttime;
893 <      
892 >    int connected = CurrentTime - client_p->connection->firsttime;
893 >
894      if (error == 0)
895      {
896        /* Admins get the real IP */
897 <      sendto_realops_flags(UMODE_ALL, L_ADMIN,
898 <                           "Server %s closed the connection",
899 <                           get_client_name(client_p, SHOW_IP));
897 >      sendto_realops_flags(UMODE_ALL, L_ADMIN, SEND_NOTICE,
898 >                           "Server %s closed the connection",
899 >                           get_client_name(client_p, SHOW_IP));
900  
901        /* Opers get a masked IP */
902 <      sendto_realops_flags(UMODE_ALL, L_OPER,
903 <                           "Server %s closed the connection",
904 <                           get_client_name(client_p, MASK_IP));
902 >      sendto_realops_flags(UMODE_ALL, L_OPER, SEND_NOTICE,
903 >                           "Server %s closed the connection",
904 >                           get_client_name(client_p, MASK_IP));
905  
906 <      ilog(L_NOTICE, "Server %s closed the connection",
907 <           get_client_name(client_p, SHOW_IP));
906 >      ilog(LOG_TYPE_IRCD, "Server %s closed the connection",
907 >           get_client_name(client_p, SHOW_IP));
908      }
909      else
910      {
911        report_error(L_ADMIN, "Lost connection to %s: %s",
912 <                   get_client_name(client_p, SHOW_IP), current_error);
912 >                   get_client_name(client_p, SHOW_IP), current_error);
913        report_error(L_OPER, "Lost connection to %s: %s",
914 <                   get_client_name(client_p, MASK_IP), current_error);
914 >                   get_client_name(client_p, MASK_IP), current_error);
915      }
916  
917 <    sendto_realops_flags(UMODE_ALL, L_ALL,
918 <                         "%s had been connected for %d day%s, %2d:%02d:%02d",
919 <                         client_p->name, connected/86400,
920 <                         (connected/86400 == 1) ? "" : "s",
921 <                         (connected % 86400) / 3600, (connected % 3600) / 60,
922 <                         connected % 60);
917 >    sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
918 >                         "%s was connected for %d day%s, %2d:%02d:%02d",
919 >                         client_p->name, connected/86400,
920 >                         (connected/86400 == 1) ? "" : "s",
921 >                         (connected % 86400) / 3600, (connected % 3600) / 60,
922 >                         connected % 60);
923    }
924  
925    if (error == 0)
926      strlcpy(errmsg, "Remote host closed the connection",
927              sizeof(errmsg));
928    else
929 <    ircsprintf(errmsg, "Read error: %s",
930 <               strerror(current_error));
929 >    snprintf(errmsg, sizeof(errmsg), "Read error: %s",
930 >             strerror(current_error));
931  
932 <  exit_client(client_p, &me, errmsg);
932 >  exit_client(client_p, errmsg);
933   }
934  
935   void
# Line 1187 | Line 946 | exit_aborted_clients(void)
946  
947      if (target_p == NULL)
948      {
949 <      sendto_realops_flags(UMODE_ALL, L_ALL,
949 >      sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
950                             "Warning: null client on abort_list!");
951        dlinkDelete(ptr, &abort_list);
952        free_dlink_node(ptr);
# Line 1201 | Line 960 | exit_aborted_clients(void)
960      else
961        notice = "Write error: connection closed";
962  
963 <    exit_client(target_p, &me, notice);  
963 >    exit_client(target_p, notice);
964      free_dlink_node(ptr);
965    }
966   }
967  
968   /*
969   * accept processing, this adds a form of "caller ID" to ircd
970 < *
970 > *
971   * If a client puts themselves into "caller ID only" mode,
972 < * only clients that match a client pointer they have put on
972 > * only clients that match a client pointer they have put on
973   * the accept list will be allowed to message them.
974   *
975 < * [ source.on_allow_list ] -> [ target1 ] -> [ target2 ]
1217 < *
1218 < * [target.allow_list] -> [ source1 ] -> [source2 ]
1219 < *
1220 < * i.e. a target will have a link list of source pointers it will allow
1221 < * each source client then has a back pointer pointing back
1222 < * to the client that has it on its accept list.
1223 < * This allows for exit_one_client to remove these now bogus entries
1224 < * from any client having an accept on them.
975 > * Diane Bruce, "Dianora" db@db.net
976   */
977  
978 < /* accept_message()
979 < *
1229 < * inputs       - pointer to source client
1230 < *              - pointer to target client
1231 < * output       - 1 if accept this message 0 if not
1232 < * side effects - See if source is on target's allow list
1233 < */
1234 < int
1235 < accept_message(struct Client *source, struct Client *target)
978 > void
979 > del_accept(struct split_nuh_item *accept_p, struct Client *client_p)
980   {
981 <  dlink_node *ptr;
981 >  dlinkDelete(&accept_p->node, &client_p->connection->acceptlist);
982  
983 <  DLINK_FOREACH(ptr, target->allow_list.head)
984 <  {
985 <    struct Client *target_p = ptr->data;
983 >  MyFree(accept_p->nickptr);
984 >  MyFree(accept_p->userptr);
985 >  MyFree(accept_p->hostptr);
986 >  MyFree(accept_p);
987 > }
988  
989 <    if (source == target_p)
990 <      return (1);
991 <  }
989 > struct split_nuh_item *
990 > find_accept(const char *nick, const char *user,
991 >            const char *host, struct Client *client_p,
992 >            int (*cmpfunc)(const char *, const char *))
993 > {
994 >  dlink_node *node = NULL;
995  
996 <  if (IsSoftCallerId(target))
996 >  DLINK_FOREACH(node, client_p->connection->acceptlist.head)
997    {
998 <    DLINK_FOREACH(ptr, target->channel.head)
999 <      if (IsMember(source, ((struct Membership *)ptr->data)->chptr))
1000 <        return (1);
998 >    struct split_nuh_item *accept_p = node->data;
999 >
1000 >    if (!cmpfunc(accept_p->nickptr, nick) &&
1001 >        !cmpfunc(accept_p->userptr, user) &&
1002 >        !cmpfunc(accept_p->hostptr, host))
1003 >      return accept_p;
1004    }
1005  
1006 <  return (0);
1006 >  return NULL;
1007   }
1008  
1009 < /* del_from_accept()
1258 < *
1259 < * inputs       - pointer to source client
1260 < *              - pointer to target client
1261 < * output       - NONE
1262 < * side effects - Delete's source pointer to targets allow list
1009 > /* accept_message()
1010   *
1011 < * Walk through the target's accept list, remove if source is found,
1012 < * Then walk through the source's on_accept_list remove target if found.
1011 > * inputs       - pointer to source client
1012 > *              - pointer to target client
1013 > * output       - 1 if accept this message 0 if not
1014 > * side effects - See if source is on target's allow list
1015   */
1016 < void
1017 < del_from_accept(struct Client *source, struct Client *target)
1016 > int
1017 > accept_message(struct Client *source,
1018 >               struct Client *target)
1019   {
1020 <  dlink_node *ptr;
1271 <  dlink_node *ptr2;
1272 <  dlink_node *next_ptr;
1273 <  dlink_node *next_ptr2;
1274 <  struct Client *target_p;
1020 >  dlink_node *node = NULL;
1021  
1022 <  DLINK_FOREACH_SAFE(ptr, next_ptr, target->allow_list.head)
1023 <  {
1024 <    target_p = ptr->data;
1022 >  if (source == target || find_accept(source->name, source->username,
1023 >                                      source->host, target, match))
1024 >    return 1;
1025  
1026 <    if (source == target_p)
1027 <    {
1028 <      dlinkDelete(ptr, &target->allow_list);
1029 <      free_dlink_node(ptr);
1026 >  if (!HasUMode(target, UMODE_CALLERID) && HasUMode(target, UMODE_SOFTCALLERID))
1027 >    DLINK_FOREACH(node, target->channel.head)
1028 >      if (IsMember(source, ((struct Membership *)node->data)->chptr))
1029 >        return 1;
1030  
1031 <      DLINK_FOREACH_SAFE(ptr2, next_ptr2, source->on_allow_list.head)
1286 <      {
1287 <        target_p = ptr2->data;
1288 <
1289 <        if (target == target_p)
1290 <        {
1291 <          dlinkDelete(ptr2, &source->on_allow_list);
1292 <          free_dlink_node(ptr2);
1293 <        }
1294 <      }
1295 <    }
1296 <  }
1031 >  return 0;
1032   }
1033  
1034   /* del_all_accepts()
1035   *
1036 < * inputs       - pointer to exiting client
1037 < * output       - NONE
1038 < * side effects - Walk through given clients allow_list and on_allow_list
1304 < *                remove all references to this client
1036 > * inputs       - pointer to exiting client
1037 > * output       - NONE
1038 > * side effects - Walk through given clients acceptlist and remove all entries
1039   */
1040   void
1041   del_all_accepts(struct Client *client_p)
1042   {
1043 <  dlink_node *ptr, *next_ptr;
1043 >  dlink_node *node = NULL, *node_next = NULL;
1044  
1045 <  DLINK_FOREACH_SAFE(ptr, next_ptr, client_p->allow_list.head)
1046 <    del_from_accept(ptr->data, client_p);
1313 <
1314 <  DLINK_FOREACH_SAFE(ptr, next_ptr, client_p->on_allow_list.head)
1315 <    del_from_accept(client_p, ptr->data);
1045 >  DLINK_FOREACH_SAFE(node, node_next, client_p->connection->acceptlist.head)
1046 >    del_accept(node->data, client_p);
1047   }
1048  
1049 < /* del_all_their_accepts()
1050 < *
1320 < * inputs       - pointer to exiting client
1321 < * output       - NONE
1322 < * side effects - Walk through given clients on_allow_list
1323 < *                remove all references to this client,
1324 < *                allow this client to keep their own allow_list
1325 < */
1326 < void
1327 < del_all_their_accepts(struct Client *client_p)
1049 > unsigned int
1050 > idle_time_get(const struct Client *source_p, const struct Client *target_p)
1051   {
1052 <  dlink_node *ptr, *next_ptr;
1052 >  unsigned int idle = 0;
1053 >  unsigned int min_idle = 0;
1054 >  unsigned int max_idle = 0;
1055 >  const struct ClassItem *const class = get_class_ptr(&target_p->connection->confs);
1056  
1057 <  DLINK_FOREACH_SAFE(ptr, next_ptr, client_p->on_allow_list.head)
1058 <    del_from_accept(client_p, ptr->data);
1333 < }
1057 >  if (!(class->flags & CLASS_FLAGS_FAKE_IDLE) || target_p == source_p)
1058 >    return CurrentTime - target_p->connection->last_privmsg;
1059  
1060 < /* set_initial_nick()
1061 < *
1062 < * inputs
1338 < * output
1339 < * side effects -
1340 < *
1341 < * This function is only called to set up an initially registering
1342 < * client.
1343 < */
1344 < void
1345 < set_initial_nick(struct Client *client_p, struct Client *source_p,
1346 <                 const char *nick)
1347 < {
1348 < char buf[USERLEN + 1];
1060 >  if (HasUMode(source_p, UMODE_OPER) &&
1061 >      !(class->flags & CLASS_FLAGS_HIDE_IDLE_FROM_OPERS))
1062 >    return CurrentTime - target_p->connection->last_privmsg;
1063  
1064 <  /* Client setting NICK the first time */
1065 <  
1352 <  /* This had to be copied here to avoid problems.. */
1353 <  source_p->tsinfo = CurrentTime;
1354 <  source_p->localClient->registration &= ~REG_NEED_NICK;
1064 >  min_idle = class->min_idle;
1065 >  max_idle = class->max_idle;
1066  
1067 <  if (source_p->name[0])
1068 <    hash_del_client(source_p);
1067 >  if (min_idle == max_idle)
1068 >    return min_idle;
1069  
1070 <  strlcpy(source_p->name, nick, sizeof(source_p->name));
1071 <  hash_add_client(source_p);
1070 >  if (class->flags & CLASS_FLAGS_RANDOM_IDLE)
1071 >    idle = genrand_int32();
1072 >  else
1073 >    idle = CurrentTime - target_p->connection->last_privmsg;
1074  
1075 <  /* fd_desc is long enough */
1076 <  fd_note(&client_p->localClient->fd, "Nick: %s", nick);
1077 <  
1078 <  /* They have the nick they want now.. */
1366 <  client_p->llname[0] = '\0';
1075 >  if (!max_idle)
1076 >    idle = 0;
1077 >  else
1078 >    idle %= max_idle;
1079  
1080 <  if (!source_p->localClient->registration)
1081 <  {
1370 <    strlcpy(buf, source_p->username, sizeof(buf));
1080 >  if (idle < min_idle)
1081 >    idle = min_idle + (idle % (max_idle - min_idle));
1082  
1083 <    /*
1373 <     * USER already received, now we have NICK.
1374 <     * *NOTE* For servers "NICK" *must* precede the
1375 <     * user message (giving USER before NICK is possible
1376 <     * only for local client connection!). register_user
1377 <     * may reject the client and call exit_client for it
1378 <     * --must test this and exit m_nick too!!!
1379 <     */
1380 <    register_local_user(client_p, source_p, nick, buf);
1381 <  }
1083 >  return idle;
1084   }
1085  
1086 < /* change_local_nick()
1086 > /* client_init()
1087   *
1088 < * inputs       - pointer to server
1089 < *              - pointer to client
1090 < *              - nick
1389 < * output       -
1390 < * side effects - changes nick of a LOCAL user
1088 > * inputs       - NONE
1089 > * output       - NONE
1090 > * side effects - initialize client free memory
1091   */
1092   void
1093 < change_local_nick(struct Client *client_p, struct Client *source_p, const char *nick)
1093 > client_init(void)
1094   {
1095 <  int samenick = 0;
1396 <
1397 <  /*
1398 <  ** Client just changing his/her nick. If he/she is
1399 <  ** on a channel, send note of change to all clients
1400 <  ** on that channel. Propagate notice to other servers.
1401 <  */
1402 <  if ((source_p->localClient->last_nick_change +
1403 <       ConfigFileEntry.max_nick_time) < CurrentTime)
1404 <    source_p->localClient->number_of_nick_changes = 0;
1405 <  source_p->localClient->last_nick_change = CurrentTime;
1406 <  source_p->localClient->number_of_nick_changes++;
1407 <
1408 <  if ((ConfigFileEntry.anti_nick_flood &&
1409 <      (source_p->localClient->number_of_nick_changes
1410 <       <= ConfigFileEntry.max_nick_changes)) ||
1411 <     !ConfigFileEntry.anti_nick_flood ||
1412 <     (IsOper(source_p) && ConfigFileEntry.no_oper_flood))
1413 <  {
1414 <    samenick = !irccmp(source_p->name, nick);
1415 <
1416 <    if (!samenick)
1417 <    {
1418 <      /*
1419 <       * Make sure everyone that has this client on its accept list
1420 <       * loses that reference.
1421 <       */
1422 <      del_all_their_accepts(source_p);
1423 <      source_p->tsinfo = CurrentTime;
1424 <      clear_ban_cache_client(source_p);
1425 <    }
1426 <
1427 <    /* XXX - the format of this notice should eventually be changed
1428 <     * to either %s[%s@%s], or even better would be get_client_name() -bill
1429 <     */
1430 <    sendto_realops_flags(UMODE_NCHANGE, L_ALL, "Nick change: From %s to %s [%s@%s]",
1431 <                         source_p->name, nick, source_p->username, source_p->host);
1432 <    sendto_common_channels_local(source_p, 1, ":%s!%s@%s NICK :%s",
1433 <                                 source_p->name, source_p->username,
1434 <                                 source_p->host, nick);
1435 <    add_history(source_p, 1);
1436 <
1437 <    /*
1438 <     * Only hubs care about lazy link nicks not being sent on yet
1439 <     * lazylink leafs/leafs always send their nicks up to hub,
1440 <     * hence must always propagate nick changes.
1441 <     * hubs might not propagate a nick change, if the leaf
1442 <     * does not know about that client yet.
1443 <     */
1444 <    sendto_server(client_p, source_p, NULL, CAP_TS6, NOCAPS, NOFLAGS,
1445 <                  ":%s NICK %s :%lu",
1446 <                  ID(source_p), nick, (unsigned long)source_p->tsinfo);
1447 <    sendto_server(client_p, source_p, NULL, NOCAPS, CAP_TS6, NOFLAGS,
1448 <                  ":%s NICK %s :%lu",
1449 <                  source_p->name, nick, (unsigned long)source_p->tsinfo);
1450 <  }
1451 <  else
1095 >  static struct event event_ping =
1096    {
1097 <    sendto_one(source_p, form_str(ERR_NICKTOOFAST),
1098 <               me.name, source_p->name, source_p->name,
1099 <               nick, ConfigFileEntry.max_nick_time);
1100 <    return;
1101 <  }
1102 <
1103 <  /* Finally, add to hash */
1104 <  if (source_p->name[0])
1461 <    hash_del_client(source_p);
1462 <
1463 <  if (!samenick)
1464 <  {
1465 <    clear_ban_cache_client(source_p);
1466 <    watch_check_hash(source_p, RPL_LOGOFF);
1467 <  }
1468 <
1469 <  strcpy(source_p->name, nick);
1470 <  hash_add_client(source_p);
1471 <
1472 <  if (!samenick)
1473 <    watch_check_hash(source_p, RPL_LOGON);
1474 <
1475 <  /* fd_desc is long enough */
1476 <  fd_note(&client_p->localClient->fd, "Nick: %s", nick);
1097 >    .name = "check_pings",
1098 >    .handler = check_pings,
1099 >    .when = 5
1100 >  };
1101 >
1102 >  client_pool = mp_pool_new(sizeof(struct Client), MP_CHUNK_SIZE_CLIENT);
1103 >  connection_pool = mp_pool_new(sizeof(struct Connection), MP_CHUNK_SIZE_CONNECTION);
1104 >  event_add(&event_ping, NULL);
1105   }

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