1 |
/* |
2 |
* ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd). |
3 |
* client.c: Controls clients. |
4 |
* |
5 |
* Copyright (C) 2002 by the past and present ircd coders, and others. |
6 |
* |
7 |
* 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 |
9 |
* the Free Software Foundation; either version 2 of the License, or |
10 |
* (at your option) any later version. |
11 |
* |
12 |
* This program is distributed in the hope that it will be useful, |
13 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 |
* 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 |
18 |
* along with this program; if not, write to the Free Software |
19 |
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 |
20 |
* USA |
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* |
22 |
* $Id$ |
23 |
*/ |
24 |
|
25 |
#include "stdinc.h" |
26 |
#include "list.h" |
27 |
#include "client.h" |
28 |
#include "channel_mode.h" |
29 |
#include "event.h" |
30 |
#include "fdlist.h" |
31 |
#include "hash.h" |
32 |
#include "irc_string.h" |
33 |
#include "ircd.h" |
34 |
#include "s_gline.h" |
35 |
#include "numeric.h" |
36 |
#include "packet.h" |
37 |
#include "s_auth.h" |
38 |
#include "s_bsd.h" |
39 |
#include "conf.h" |
40 |
#include "log.h" |
41 |
#include "s_misc.h" |
42 |
#include "s_serv.h" |
43 |
#include "send.h" |
44 |
#include "whowas.h" |
45 |
#include "s_user.h" |
46 |
#include "dbuf.h" |
47 |
#include "memory.h" |
48 |
#include "mempool.h" |
49 |
#include "hostmask.h" |
50 |
#include "listener.h" |
51 |
#include "irc_res.h" |
52 |
#include "userhost.h" |
53 |
#include "watch.h" |
54 |
#include "rng_mt.h" |
55 |
|
56 |
dlink_list listing_client_list = { NULL, NULL, 0 }; |
57 |
/* Pointer to beginning of Client list */ |
58 |
dlink_list global_client_list = {NULL, NULL, 0}; |
59 |
/* unknown/client pointer lists */ |
60 |
dlink_list unknown_list = {NULL, NULL, 0}; |
61 |
dlink_list local_client_list = {NULL, NULL, 0}; |
62 |
dlink_list serv_list = {NULL, NULL, 0}; |
63 |
dlink_list global_serv_list = {NULL, NULL, 0}; |
64 |
dlink_list oper_list = {NULL, NULL, 0}; |
65 |
|
66 |
static EVH check_pings; |
67 |
|
68 |
static mp_pool_t *client_pool = NULL; |
69 |
static mp_pool_t *lclient_pool = NULL; |
70 |
|
71 |
static dlink_list dead_list = { NULL, NULL, 0}; |
72 |
static dlink_list abort_list = { NULL, NULL, 0}; |
73 |
|
74 |
static dlink_node *eac_next; /* next aborted client to exit */ |
75 |
|
76 |
static void check_pings_list(dlink_list *); |
77 |
static void check_unknowns_list(void); |
78 |
static void ban_them(struct Client *, struct MaskItem *); |
79 |
|
80 |
|
81 |
/* client_init() |
82 |
* |
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* inputs - NONE |
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* output - NONE |
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* side effects - initialize client free memory |
86 |
*/ |
87 |
void |
88 |
client_init(void) |
89 |
{ |
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/* start off the check ping event .. -- adrian |
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* Every 30 seconds is plenty -- db |
92 |
*/ |
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client_pool = mp_pool_new(sizeof(struct Client), MP_CHUNK_SIZE_CLIENT); |
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lclient_pool = mp_pool_new(sizeof(struct LocalUser), MP_CHUNK_SIZE_LCLIENT); |
95 |
eventAdd("check_pings", check_pings, NULL, 5); |
96 |
} |
97 |
|
98 |
/* |
99 |
* make_client - create a new Client struct and set it to initial state. |
100 |
* |
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* from == NULL, create local client (a client connected |
102 |
* to a socket). |
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* WARNING: This leaves the client in a dangerous |
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* state where fd == -1, dead flag is not set and |
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* the client is on the unknown_list; therefore, |
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* the first thing to do after calling make_client(NULL) |
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* is setting fd to something reasonable. -adx |
108 |
* |
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* from, create remote client (behind a socket |
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* associated with the client defined by |
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* 'from'). ('from' is a local client!!). |
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*/ |
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struct Client * |
114 |
make_client(struct Client *from) |
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{ |
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struct Client *client_p = mp_pool_get(client_pool); |
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|
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memset(client_p, 0, sizeof(*client_p)); |
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|
120 |
if (from == NULL) |
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{ |
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client_p->from = client_p; /* 'from' of local client is self! */ |
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client_p->localClient = mp_pool_get(lclient_pool); |
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|
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memset(client_p->localClient, 0, sizeof(*client_p->localClient)); |
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|
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client_p->localClient->since = CurrentTime; |
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client_p->localClient->lasttime = CurrentTime; |
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client_p->localClient->firsttime = CurrentTime; |
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client_p->localClient->registration = REG_INIT; |
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|
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/* as good a place as any... */ |
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dlinkAdd(client_p, &client_p->localClient->lclient_node, &unknown_list); |
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} |
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else |
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client_p->from = from; /* 'from' of local client is self! */ |
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|
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client_p->idhnext = client_p; |
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client_p->hnext = client_p; |
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SetUnknown(client_p); |
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strcpy(client_p->username, "unknown"); |
142 |
strcpy(client_p->svid, "0"); |
143 |
|
144 |
return client_p; |
145 |
} |
146 |
|
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/* |
148 |
* free_client |
149 |
* |
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* inputs - pointer to client |
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* output - NONE |
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* side effects - client pointed to has its memory freed |
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*/ |
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static void |
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free_client(struct Client *client_p) |
156 |
{ |
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assert(client_p != NULL); |
158 |
assert(client_p != &me); |
159 |
assert(client_p->hnext == client_p); |
160 |
assert(client_p->idhnext == client_p); |
161 |
assert(client_p->channel.head == NULL); |
162 |
assert(dlink_list_length(&client_p->channel) == 0); |
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assert(dlink_list_length(&client_p->whowas) == 0); |
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assert(!IsServer(client_p) || (IsServer(client_p) && client_p->serv)); |
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|
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MyFree(client_p->serv); |
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MyFree(client_p->certfp); |
168 |
|
169 |
if (MyConnect(client_p)) |
170 |
{ |
171 |
assert(client_p->localClient->invited.head == NULL); |
172 |
assert(dlink_list_length(&client_p->localClient->invited) == 0); |
173 |
assert(dlink_list_length(&client_p->localClient->watches) == 0); |
174 |
assert(IsClosing(client_p) && IsDead(client_p)); |
175 |
|
176 |
MyFree(client_p->localClient->response); |
177 |
MyFree(client_p->localClient->auth_oper); |
178 |
|
179 |
/* |
180 |
* clean up extra sockets from P-lines which have been discarded. |
181 |
*/ |
182 |
if (client_p->localClient->listener) |
183 |
{ |
184 |
assert(0 < client_p->localClient->listener->ref_count); |
185 |
if (0 == --client_p->localClient->listener->ref_count && |
186 |
!client_p->localClient->listener->active) |
187 |
free_listener(client_p->localClient->listener); |
188 |
} |
189 |
|
190 |
dbuf_clear(&client_p->localClient->buf_recvq); |
191 |
dbuf_clear(&client_p->localClient->buf_sendq); |
192 |
|
193 |
mp_pool_release(client_p->localClient); |
194 |
} |
195 |
|
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mp_pool_release(client_p); |
197 |
} |
198 |
|
199 |
/* |
200 |
* check_pings - go through the local client list and check activity |
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* kill off stuff that should die |
202 |
* |
203 |
* inputs - NOT USED (from event) |
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* output - next time_t when check_pings() should be called again |
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* side effects - |
206 |
* |
207 |
* |
208 |
* A PING can be sent to clients as necessary. |
209 |
* |
210 |
* Client/Server ping outs are handled. |
211 |
*/ |
212 |
|
213 |
/* |
214 |
* Addon from adrian. We used to call this after nextping seconds, |
215 |
* however I've changed it to run once a second. This is only for |
216 |
* PING timeouts, not K/etc-line checks (thanks dianora!). Having it |
217 |
* run once a second makes life a lot easier - when a new client connects |
218 |
* and they need a ping in 4 seconds, if nextping was set to 20 seconds |
219 |
* we end up waiting 20 seconds. This is stupid. :-) |
220 |
* I will optimise (hah!) check_pings() once I've finished working on |
221 |
* tidying up other network IO evilnesses. |
222 |
* -- adrian |
223 |
*/ |
224 |
|
225 |
static void |
226 |
check_pings(void *notused) |
227 |
{ |
228 |
check_pings_list(&local_client_list); |
229 |
check_pings_list(&serv_list); |
230 |
check_unknowns_list(); |
231 |
} |
232 |
|
233 |
/* check_pings_list() |
234 |
* |
235 |
* inputs - pointer to list to check |
236 |
* output - NONE |
237 |
* side effects - |
238 |
*/ |
239 |
static void |
240 |
check_pings_list(dlink_list *list) |
241 |
{ |
242 |
char scratch[32]; /* way too generous but... */ |
243 |
int ping = 0; /* ping time value from client */ |
244 |
dlink_node *ptr = NULL, *next_ptr = NULL; |
245 |
|
246 |
DLINK_FOREACH_SAFE(ptr, next_ptr, list->head) |
247 |
{ |
248 |
struct Client *client_p = ptr->data; |
249 |
|
250 |
/* |
251 |
** Note: No need to notify opers here. It's |
252 |
** already done when "FLAGS_DEADSOCKET" is set. |
253 |
*/ |
254 |
if (IsDead(client_p)) |
255 |
{ |
256 |
/* Ignore it, its been exited already */ |
257 |
continue; |
258 |
} |
259 |
|
260 |
if (!IsRegistered(client_p)) |
261 |
ping = CONNECTTIMEOUT; |
262 |
else |
263 |
ping = get_client_ping(&client_p->localClient->confs); |
264 |
|
265 |
if (ping < CurrentTime - client_p->localClient->lasttime) |
266 |
{ |
267 |
if (!IsPingSent(client_p)) |
268 |
{ |
269 |
/* |
270 |
* if we havent PINGed the connection and we havent |
271 |
* heard from it in a while, PING it to make sure |
272 |
* it is still alive. |
273 |
*/ |
274 |
SetPingSent(client_p); |
275 |
client_p->localClient->lasttime = CurrentTime - ping; |
276 |
sendto_one(client_p, "PING :%s", ID_or_name(&me, client_p)); |
277 |
} |
278 |
else |
279 |
{ |
280 |
if (CurrentTime - client_p->localClient->lasttime >= 2 * ping) |
281 |
{ |
282 |
/* |
283 |
* If the client/server hasn't talked to us in 2*ping seconds |
284 |
* and it has a ping time, then close its connection. |
285 |
*/ |
286 |
if (IsServer(client_p) || IsHandshake(client_p)) |
287 |
{ |
288 |
sendto_realops_flags(UMODE_ALL, L_ADMIN, SEND_NOTICE, |
289 |
"No response from %s, closing link", |
290 |
get_client_name(client_p, HIDE_IP)); |
291 |
sendto_realops_flags(UMODE_ALL, L_OPER, SEND_NOTICE, |
292 |
"No response from %s, closing link", |
293 |
get_client_name(client_p, MASK_IP)); |
294 |
ilog(LOG_TYPE_IRCD, "No response from %s, closing link", |
295 |
get_client_name(client_p, HIDE_IP)); |
296 |
} |
297 |
|
298 |
snprintf(scratch, sizeof(scratch), "Ping timeout: %d seconds", |
299 |
(int)(CurrentTime - client_p->localClient->lasttime)); |
300 |
exit_client(client_p, &me, scratch); |
301 |
} |
302 |
} |
303 |
} |
304 |
} |
305 |
} |
306 |
|
307 |
/* check_unknowns_list() |
308 |
* |
309 |
* inputs - pointer to list of unknown clients |
310 |
* output - NONE |
311 |
* side effects - unknown clients get marked for termination after n seconds |
312 |
*/ |
313 |
static void |
314 |
check_unknowns_list(void) |
315 |
{ |
316 |
dlink_node *ptr, *next_ptr; |
317 |
|
318 |
DLINK_FOREACH_SAFE(ptr, next_ptr, unknown_list.head) |
319 |
{ |
320 |
struct Client *client_p = ptr->data; |
321 |
|
322 |
/* |
323 |
* Check UNKNOWN connections - if they have been in this state |
324 |
* for > 30s, close them. |
325 |
*/ |
326 |
if (IsAuthFinished(client_p) && (CurrentTime - client_p->localClient->firsttime) > 30) |
327 |
exit_client(client_p, &me, "Registration timed out"); |
328 |
} |
329 |
} |
330 |
|
331 |
/* check_conf_klines() |
332 |
* |
333 |
* inputs - NONE |
334 |
* output - NONE |
335 |
* side effects - Check all connections for a pending kline against the |
336 |
* client, exit the client if a kline matches. |
337 |
*/ |
338 |
void |
339 |
check_conf_klines(void) |
340 |
{ |
341 |
struct Client *client_p = NULL; /* current local client_p being examined */ |
342 |
struct MaskItem *conf = NULL; |
343 |
dlink_node *ptr, *next_ptr; |
344 |
|
345 |
DLINK_FOREACH_SAFE(ptr, next_ptr, local_client_list.head) |
346 |
{ |
347 |
client_p = ptr->data; |
348 |
|
349 |
/* If a client is already being exited |
350 |
*/ |
351 |
if (IsDead(client_p) || !IsClient(client_p)) |
352 |
continue; |
353 |
|
354 |
if ((conf = find_dline_conf(&client_p->localClient->ip, |
355 |
client_p->localClient->aftype)) != NULL) |
356 |
{ |
357 |
if (conf->type == CONF_EXEMPT) |
358 |
continue; |
359 |
|
360 |
ban_them(client_p, conf); |
361 |
continue; /* and go examine next fd/client_p */ |
362 |
} |
363 |
|
364 |
if (ConfigFileEntry.glines) |
365 |
{ |
366 |
if (!(conf = find_conf_by_address(client_p->host, &client_p->localClient->ip, |
367 |
CONF_GLINE, client_p->localClient->aftype, |
368 |
client_p->username, NULL, 1))) |
369 |
continue; |
370 |
|
371 |
if (IsExemptKline(client_p) || |
372 |
IsExemptGline(client_p)) |
373 |
{ |
374 |
sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE, |
375 |
"GLINE over-ruled for %s, client is %sline_exempt", |
376 |
get_client_name(client_p, HIDE_IP), IsExemptKline(client_p) ? "k" : "g"); |
377 |
continue; |
378 |
} |
379 |
|
380 |
ban_them(client_p, conf); |
381 |
/* and go examine next fd/client_p */ |
382 |
continue; |
383 |
} |
384 |
|
385 |
if ((conf = find_conf_by_address(client_p->host, &client_p->localClient->ip, |
386 |
CONF_KLINE, client_p->localClient->aftype, |
387 |
client_p->username, NULL, 1)) != NULL) |
388 |
{ |
389 |
if (IsExemptKline(client_p)) |
390 |
{ |
391 |
sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE, |
392 |
"KLINE over-ruled for %s, client is kline_exempt", |
393 |
get_client_name(client_p, HIDE_IP)); |
394 |
continue; |
395 |
} |
396 |
|
397 |
ban_them(client_p, conf); |
398 |
continue; |
399 |
} |
400 |
|
401 |
if ((conf = find_matching_name_conf(CONF_XLINE, client_p->info, |
402 |
NULL, NULL, 0))) |
403 |
{ |
404 |
ban_them(client_p, conf); |
405 |
continue; |
406 |
} |
407 |
} |
408 |
|
409 |
/* also check the unknowns list for new dlines */ |
410 |
DLINK_FOREACH_SAFE(ptr, next_ptr, unknown_list.head) |
411 |
{ |
412 |
client_p = ptr->data; |
413 |
|
414 |
if ((conf = find_dline_conf(&client_p->localClient->ip, |
415 |
client_p->localClient->aftype))) |
416 |
{ |
417 |
if (conf->type == CONF_EXEMPT) |
418 |
continue; |
419 |
|
420 |
exit_client(client_p, &me, "D-lined"); |
421 |
} |
422 |
} |
423 |
} |
424 |
|
425 |
/* |
426 |
* ban_them |
427 |
* |
428 |
* inputs - pointer to client to ban |
429 |
* - pointer to MaskItem |
430 |
* output - NONE |
431 |
* side effects - given client_p is banned |
432 |
*/ |
433 |
static void |
434 |
ban_them(struct Client *client_p, struct MaskItem *conf) |
435 |
{ |
436 |
const char *user_reason = NULL; /* What is sent to user */ |
437 |
const char *type_string = NULL; |
438 |
const char dline_string[] = "D-line"; |
439 |
const char kline_string[] = "K-line"; |
440 |
const char gline_string[] = "G-line"; |
441 |
const char xline_string[] = "X-line"; |
442 |
|
443 |
switch (conf->type) |
444 |
{ |
445 |
case CONF_KLINE: |
446 |
type_string = kline_string; |
447 |
break; |
448 |
case CONF_DLINE: |
449 |
type_string = dline_string; |
450 |
break; |
451 |
case CONF_GLINE: |
452 |
type_string = gline_string; |
453 |
break; |
454 |
case CONF_XLINE: |
455 |
type_string = xline_string; |
456 |
++conf->count; |
457 |
break; |
458 |
default: |
459 |
assert(0); |
460 |
break; |
461 |
} |
462 |
|
463 |
user_reason = conf->reason ? conf->reason : type_string; |
464 |
|
465 |
sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE, "%s active for %s", |
466 |
type_string, get_client_name(client_p, HIDE_IP)); |
467 |
|
468 |
if (IsClient(client_p)) |
469 |
sendto_one(client_p, form_str(ERR_YOUREBANNEDCREEP), |
470 |
me.name, client_p->name, user_reason); |
471 |
|
472 |
exit_client(client_p, &me, user_reason); |
473 |
} |
474 |
|
475 |
/* update_client_exit_stats() |
476 |
* |
477 |
* input - pointer to client |
478 |
* output - NONE |
479 |
* side effects - |
480 |
*/ |
481 |
static void |
482 |
update_client_exit_stats(struct Client *client_p) |
483 |
{ |
484 |
if (IsClient(client_p)) |
485 |
{ |
486 |
assert(Count.total > 0); |
487 |
--Count.total; |
488 |
if (HasUMode(client_p, UMODE_OPER)) |
489 |
--Count.oper; |
490 |
if (HasUMode(client_p, UMODE_INVISIBLE)) |
491 |
--Count.invisi; |
492 |
} |
493 |
else if (IsServer(client_p)) |
494 |
sendto_realops_flags(UMODE_EXTERNAL, L_ALL, SEND_NOTICE, |
495 |
"Server %s split from %s", |
496 |
client_p->name, client_p->servptr->name); |
497 |
|
498 |
if (splitchecking && !splitmode) |
499 |
check_splitmode(NULL); |
500 |
} |
501 |
|
502 |
/* find_person() |
503 |
* |
504 |
* inputs - pointer to name |
505 |
* output - return client pointer |
506 |
* side effects - find person by (nick)name |
507 |
*/ |
508 |
struct Client * |
509 |
find_person(const struct Client *client_p, const char *name) |
510 |
{ |
511 |
struct Client *target_p = NULL; |
512 |
|
513 |
if (IsDigit(*name)) |
514 |
{ |
515 |
if (IsServer(client_p) || HasFlag(client_p, FLAGS_SERVICE)) |
516 |
target_p = hash_find_id(name); |
517 |
} |
518 |
else |
519 |
target_p = hash_find_client(name); |
520 |
|
521 |
return (target_p && IsClient(target_p)) ? target_p : NULL; |
522 |
} |
523 |
|
524 |
/* |
525 |
* find_chasing - find the client structure for a nick name (name) |
526 |
* using history mechanism if necessary. If the client is not found, |
527 |
* an error message (NO SUCH NICK) is generated. If the client was found |
528 |
* through the history, chasing will be 1 and otherwise 0. |
529 |
*/ |
530 |
struct Client * |
531 |
find_chasing(struct Client *source_p, const char *name, int *const chasing) |
532 |
{ |
533 |
struct Client *who = find_person(source_p->from, name); |
534 |
|
535 |
if (chasing) |
536 |
*chasing = 0; |
537 |
|
538 |
if (who) |
539 |
return who; |
540 |
|
541 |
if (IsDigit(*name)) |
542 |
return NULL; |
543 |
|
544 |
if ((who = whowas_get_history(name, |
545 |
(time_t)ConfigFileEntry.kill_chase_time_limit)) |
546 |
== NULL) |
547 |
{ |
548 |
sendto_one(source_p, form_str(ERR_NOSUCHNICK), |
549 |
me.name, source_p->name, name); |
550 |
return NULL; |
551 |
} |
552 |
|
553 |
if (chasing) |
554 |
*chasing = 1; |
555 |
|
556 |
return who; |
557 |
} |
558 |
|
559 |
/* |
560 |
* get_client_name - Return the name of the client |
561 |
* for various tracking and |
562 |
* admin purposes. The main purpose of this function is to |
563 |
* return the "socket host" name of the client, if that |
564 |
* differs from the advertised name (other than case). |
565 |
* But, this can be used to any client structure. |
566 |
* |
567 |
* NOTE 1: |
568 |
* Watch out the allocation of "nbuf", if either source_p->name |
569 |
* or source_p->sockhost gets changed into pointers instead of |
570 |
* directly allocated within the structure... |
571 |
* |
572 |
* NOTE 2: |
573 |
* Function return either a pointer to the structure (source_p) or |
574 |
* to internal buffer (nbuf). *NEVER* use the returned pointer |
575 |
* to modify what it points!!! |
576 |
*/ |
577 |
const char * |
578 |
get_client_name(const struct Client *client, enum addr_mask_type type) |
579 |
{ |
580 |
static char nbuf[HOSTLEN * 2 + USERLEN + 5]; |
581 |
|
582 |
assert(client != NULL); |
583 |
|
584 |
if (!MyConnect(client)) |
585 |
return client->name; |
586 |
|
587 |
if (IsServer(client) || IsConnecting(client) || IsHandshake(client)) |
588 |
{ |
589 |
if (!irccmp(client->name, client->host)) |
590 |
return client->name; |
591 |
else if (ConfigServerHide.hide_server_ips) |
592 |
type = MASK_IP; |
593 |
} |
594 |
|
595 |
if (ConfigFileEntry.hide_spoof_ips) |
596 |
if (type == SHOW_IP && IsIPSpoof(client)) |
597 |
type = MASK_IP; |
598 |
|
599 |
/* And finally, let's get the host information, ip or name */ |
600 |
switch (type) |
601 |
{ |
602 |
case SHOW_IP: |
603 |
snprintf(nbuf, sizeof(nbuf), "%s[%s@%s]", |
604 |
client->name, |
605 |
client->username, client->sockhost); |
606 |
break; |
607 |
case MASK_IP: |
608 |
if (client->localClient->aftype == AF_INET) |
609 |
snprintf(nbuf, sizeof(nbuf), "%s[%s@255.255.255.255]", |
610 |
client->name, client->username); |
611 |
else |
612 |
snprintf(nbuf, sizeof(nbuf), "%s[%s@ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff]", |
613 |
client->name, client->username); |
614 |
break; |
615 |
default: |
616 |
snprintf(nbuf, sizeof(nbuf), "%s[%s@%s]", |
617 |
client->name, |
618 |
client->username, client->host); |
619 |
} |
620 |
|
621 |
return nbuf; |
622 |
} |
623 |
|
624 |
void |
625 |
free_exited_clients(void) |
626 |
{ |
627 |
dlink_node *ptr = NULL, *next = NULL; |
628 |
|
629 |
DLINK_FOREACH_SAFE(ptr, next, dead_list.head) |
630 |
{ |
631 |
free_client(ptr->data); |
632 |
dlinkDelete(ptr, &dead_list); |
633 |
free_dlink_node(ptr); |
634 |
} |
635 |
} |
636 |
|
637 |
/* |
638 |
* Exit one client, local or remote. Assuming all dependents have |
639 |
* been already removed, and socket closed for local client. |
640 |
* |
641 |
* The only messages generated are QUITs on channels. |
642 |
*/ |
643 |
static void |
644 |
exit_one_client(struct Client *source_p, const char *quitmsg) |
645 |
{ |
646 |
dlink_node *lp = NULL, *next_lp = NULL; |
647 |
|
648 |
assert(!IsMe(source_p)); |
649 |
|
650 |
if (IsClient(source_p)) |
651 |
{ |
652 |
if (source_p->servptr->serv != NULL) |
653 |
dlinkDelete(&source_p->lnode, &source_p->servptr->serv->client_list); |
654 |
|
655 |
/* |
656 |
* If a person is on a channel, send a QUIT notice |
657 |
* to every client (person) on the same channel (so |
658 |
* that the client can show the "**signoff" message). |
659 |
* (Note: The notice is to the local clients *only*) |
660 |
*/ |
661 |
sendto_common_channels_local(source_p, 0, 0, ":%s!%s@%s QUIT :%s", |
662 |
source_p->name, source_p->username, |
663 |
source_p->host, quitmsg); |
664 |
DLINK_FOREACH_SAFE(lp, next_lp, source_p->channel.head) |
665 |
remove_user_from_channel(lp->data); |
666 |
|
667 |
whowas_add_history(source_p, 0); |
668 |
whowas_off_history(source_p); |
669 |
|
670 |
watch_check_hash(source_p, RPL_LOGOFF); |
671 |
|
672 |
if (MyConnect(source_p)) |
673 |
{ |
674 |
/* Clean up invitefield */ |
675 |
DLINK_FOREACH_SAFE(lp, next_lp, source_p->localClient->invited.head) |
676 |
del_invite(lp->data, source_p); |
677 |
|
678 |
del_all_accepts(source_p); |
679 |
} |
680 |
} |
681 |
else if (IsServer(source_p)) |
682 |
{ |
683 |
dlinkDelete(&source_p->lnode, &source_p->servptr->serv->server_list); |
684 |
|
685 |
if ((lp = dlinkFindDelete(&global_serv_list, source_p)) != NULL) |
686 |
free_dlink_node(lp); |
687 |
} |
688 |
|
689 |
/* Remove source_p from the client lists */ |
690 |
if (HasID(source_p)) |
691 |
hash_del_id(source_p); |
692 |
if (source_p->name[0]) |
693 |
hash_del_client(source_p); |
694 |
|
695 |
if (IsUserHostIp(source_p)) |
696 |
delete_user_host(source_p->username, source_p->host, !MyConnect(source_p)); |
697 |
|
698 |
/* remove from global client list |
699 |
* NOTE: source_p->node.next cannot be NULL if the client is added |
700 |
* to global_client_list (there is always &me at its end) |
701 |
*/ |
702 |
if (source_p != NULL && source_p->node.next != NULL) |
703 |
dlinkDelete(&source_p->node, &global_client_list); |
704 |
|
705 |
update_client_exit_stats(source_p); |
706 |
|
707 |
/* Check to see if the client isn't already on the dead list */ |
708 |
assert(dlinkFind(&dead_list, source_p) == NULL); |
709 |
|
710 |
/* add to dead client dlist */ |
711 |
SetDead(source_p); |
712 |
dlinkAdd(source_p, make_dlink_node(), &dead_list); |
713 |
} |
714 |
|
715 |
/* Recursively send QUITs and SQUITs for source_p and all its dependent clients |
716 |
* and servers to those servers that need them. A server needs the client |
717 |
* QUITs if it can't figure them out from the SQUIT (ie pre-TS4) or if it |
718 |
* isn't getting the SQUIT because of @#(*&@)# hostmasking. With TS4, once |
719 |
* a link gets a SQUIT, it doesn't need any QUIT/SQUITs for clients depending |
720 |
* on that one -orabidoo |
721 |
* |
722 |
* This is now called on each local server -adx |
723 |
*/ |
724 |
static void |
725 |
recurse_send_quits(struct Client *original_source_p, struct Client *source_p, |
726 |
struct Client *from, struct Client *to, const char *comment, |
727 |
const char *splitstr) |
728 |
{ |
729 |
dlink_node *ptr, *next; |
730 |
struct Client *target_p; |
731 |
|
732 |
assert(to != source_p); /* should be already removed from serv_list */ |
733 |
|
734 |
/* If this server can handle quit storm (QS) removal |
735 |
* of dependents, just send the SQUIT |
736 |
*/ |
737 |
if (!IsCapable(to, CAP_QS)) |
738 |
DLINK_FOREACH_SAFE(ptr, next, source_p->serv->client_list.head) |
739 |
{ |
740 |
target_p = ptr->data; |
741 |
sendto_one(to, ":%s QUIT :%s", target_p->name, splitstr); |
742 |
} |
743 |
|
744 |
DLINK_FOREACH_SAFE(ptr, next, source_p->serv->server_list.head) |
745 |
recurse_send_quits(original_source_p, ptr->data, from, to, |
746 |
comment, splitstr); |
747 |
|
748 |
if ((source_p == original_source_p && to != from) || |
749 |
!IsCapable(to, CAP_QS)) |
750 |
{ |
751 |
/* don't use a prefix here - we have to be 100% sure the message |
752 |
* will be accepted without Unknown prefix etc.. */ |
753 |
sendto_one(to, "SQUIT %s :%s", ID_or_name(source_p, to), comment); |
754 |
} |
755 |
} |
756 |
|
757 |
/* |
758 |
* Remove all clients that depend on source_p; assumes all (S)QUITs have |
759 |
* already been sent. we make sure to exit a server's dependent clients |
760 |
* and servers before the server itself; exit_one_client takes care of |
761 |
* actually removing things off llists. tweaked from +CSr31 -orabidoo |
762 |
*/ |
763 |
static void |
764 |
recurse_remove_clients(struct Client *source_p, const char *quitmsg) |
765 |
{ |
766 |
dlink_node *ptr, *next; |
767 |
|
768 |
DLINK_FOREACH_SAFE(ptr, next, source_p->serv->client_list.head) |
769 |
exit_one_client(ptr->data, quitmsg); |
770 |
|
771 |
DLINK_FOREACH_SAFE(ptr, next, source_p->serv->server_list.head) |
772 |
{ |
773 |
recurse_remove_clients(ptr->data, quitmsg); |
774 |
exit_one_client(ptr->data, quitmsg); |
775 |
} |
776 |
} |
777 |
|
778 |
/* |
779 |
** Remove *everything* that depends on source_p, from all lists, and sending |
780 |
** all necessary QUITs and SQUITs. source_p itself is still on the lists, |
781 |
** and its SQUITs have been sent except for the upstream one -orabidoo |
782 |
*/ |
783 |
static void |
784 |
remove_dependents(struct Client *source_p, struct Client *from, |
785 |
const char *comment, const char *splitstr) |
786 |
{ |
787 |
dlink_node *ptr = NULL; |
788 |
|
789 |
DLINK_FOREACH(ptr, serv_list.head) |
790 |
recurse_send_quits(source_p, source_p, from, ptr->data, |
791 |
comment, splitstr); |
792 |
|
793 |
recurse_remove_clients(source_p, splitstr); |
794 |
} |
795 |
|
796 |
/* |
797 |
* exit_client - exit a client of any type. Generally, you can use |
798 |
* this on any struct Client, regardless of its state. |
799 |
* |
800 |
* Note, you shouldn't exit remote _users_ without first doing |
801 |
* AddFlag(x, FLAGS_KILLED) and propagating a kill or similar message. |
802 |
* However, it is perfectly correct to call exit_client to force a _server_ |
803 |
* quit (either local or remote one). |
804 |
* |
805 |
* inputs: - a client pointer that is going to be exited |
806 |
* - for servers, the second argument is a pointer to who |
807 |
* is firing the server. This side won't get any generated |
808 |
* messages. NEVER NULL! |
809 |
* output: none |
810 |
* side effects: the client is delinked from all lists, disconnected, |
811 |
* and the rest of IRC network is notified of the exit. |
812 |
* Client memory is scheduled to be freed |
813 |
*/ |
814 |
void |
815 |
exit_client(struct Client *source_p, struct Client *from, const char *comment) |
816 |
{ |
817 |
dlink_node *m = NULL; |
818 |
|
819 |
if (MyConnect(source_p)) |
820 |
{ |
821 |
/* DO NOT REMOVE. exit_client can be called twice after a failed |
822 |
* read/write. |
823 |
*/ |
824 |
if (IsClosing(source_p)) |
825 |
return; |
826 |
|
827 |
SetClosing(source_p); |
828 |
|
829 |
if (IsIpHash(source_p)) |
830 |
remove_one_ip(&source_p->localClient->ip); |
831 |
|
832 |
delete_auth(&source_p->localClient->auth); |
833 |
|
834 |
/* |
835 |
* This source_p could have status of one of STAT_UNKNOWN, STAT_CONNECTING |
836 |
* STAT_HANDSHAKE or STAT_UNKNOWN |
837 |
* all of which are lumped together into unknown_list |
838 |
* |
839 |
* In all above cases IsRegistered() will not be true. |
840 |
*/ |
841 |
if (!IsRegistered(source_p)) |
842 |
{ |
843 |
assert(dlinkFind(&unknown_list, source_p)); |
844 |
|
845 |
dlinkDelete(&source_p->localClient->lclient_node, &unknown_list); |
846 |
} |
847 |
else if (IsClient(source_p)) |
848 |
{ |
849 |
time_t on_for = CurrentTime - source_p->localClient->firsttime; |
850 |
assert(Count.local > 0); |
851 |
Count.local--; |
852 |
|
853 |
if (HasUMode(source_p, UMODE_OPER)) |
854 |
if ((m = dlinkFindDelete(&oper_list, source_p)) != NULL) |
855 |
free_dlink_node(m); |
856 |
|
857 |
assert(dlinkFind(&local_client_list, source_p)); |
858 |
dlinkDelete(&source_p->localClient->lclient_node, &local_client_list); |
859 |
|
860 |
if (source_p->localClient->list_task != NULL) |
861 |
free_list_task(source_p->localClient->list_task, source_p); |
862 |
|
863 |
watch_del_watch_list(source_p); |
864 |
sendto_realops_flags(UMODE_CCONN, L_ALL, SEND_NOTICE, |
865 |
"Client exiting: %s (%s@%s) [%s] [%s]", |
866 |
source_p->name, source_p->username, source_p->host, comment, |
867 |
ConfigFileEntry.hide_spoof_ips && IsIPSpoof(source_p) ? |
868 |
"255.255.255.255" : source_p->sockhost); |
869 |
ilog(LOG_TYPE_USER, "%s (%3u:%02u:%02u): %s!%s@%s %llu/%llu", |
870 |
myctime(source_p->localClient->firsttime), (unsigned int)(on_for / 3600), |
871 |
(unsigned int)((on_for % 3600)/60), (unsigned int)(on_for % 60), |
872 |
source_p->name, source_p->username, source_p->host, |
873 |
source_p->localClient->send.bytes>>10, |
874 |
source_p->localClient->recv.bytes>>10); |
875 |
} |
876 |
else if (IsServer(source_p)) |
877 |
{ |
878 |
assert(Count.myserver > 0); |
879 |
--Count.myserver; |
880 |
|
881 |
assert(dlinkFind(&serv_list, source_p)); |
882 |
dlinkDelete(&source_p->localClient->lclient_node, &serv_list); |
883 |
unset_chcap_usage_counts(source_p); |
884 |
} |
885 |
|
886 |
if (!IsDead(source_p)) |
887 |
{ |
888 |
if (IsServer(source_p)) |
889 |
{ |
890 |
/* for them, we are exiting the network */ |
891 |
sendto_one(source_p, ":%s SQUIT %s :%s", |
892 |
ID_or_name(from, source_p), me.name, comment); |
893 |
} |
894 |
|
895 |
sendto_one(source_p, "ERROR :Closing Link: %s (%s)", |
896 |
source_p->host, comment); |
897 |
} |
898 |
|
899 |
/* |
900 |
** Currently only server connections can have |
901 |
** depending remote clients here, but it does no |
902 |
** harm to check for all local clients. In |
903 |
** future some other clients than servers might |
904 |
** have remotes too... |
905 |
** |
906 |
** Close the Client connection first and mark it |
907 |
** so that no messages are attempted to send to it. |
908 |
** Remember it makes source_p->from == NULL. |
909 |
*/ |
910 |
close_connection(source_p); |
911 |
} |
912 |
else if (IsClient(source_p) && HasFlag(source_p->servptr, FLAGS_EOB)) |
913 |
sendto_realops_flags(UMODE_FARCONNECT, L_ALL, SEND_NOTICE, |
914 |
"Client exiting at %s: %s (%s@%s) [%s]", |
915 |
source_p->servptr->name, source_p->name, |
916 |
source_p->username, source_p->host, comment); |
917 |
|
918 |
if (IsServer(source_p)) |
919 |
{ |
920 |
char splitstr[HOSTLEN + HOSTLEN + 2]; |
921 |
|
922 |
/* This shouldn't ever happen */ |
923 |
assert(source_p->serv != NULL && source_p->servptr != NULL); |
924 |
|
925 |
if (ConfigServerHide.hide_servers) |
926 |
/* |
927 |
* Set netsplit message to "*.net *.split" to still show |
928 |
* that its a split, but hide the servers splitting |
929 |
*/ |
930 |
strcpy(splitstr, "*.net *.split"); |
931 |
else |
932 |
snprintf(splitstr, sizeof(splitstr), "%s %s", |
933 |
source_p->servptr->name, source_p->name); |
934 |
|
935 |
remove_dependents(source_p, from->from, comment, splitstr); |
936 |
|
937 |
if (source_p->servptr == &me) |
938 |
{ |
939 |
sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE, |
940 |
"%s was connected for %d seconds. %llu/%llu sendK/recvK.", |
941 |
source_p->name, (int)(CurrentTime - source_p->localClient->firsttime), |
942 |
source_p->localClient->send.bytes >> 10, |
943 |
source_p->localClient->recv.bytes >> 10); |
944 |
ilog(LOG_TYPE_IRCD, "%s was connected for %d seconds. %llu/%llu sendK/recvK.", |
945 |
source_p->name, (int)(CurrentTime - source_p->localClient->firsttime), |
946 |
source_p->localClient->send.bytes >> 10, |
947 |
source_p->localClient->recv.bytes >> 10); |
948 |
} |
949 |
} |
950 |
else if (IsClient(source_p) && !HasFlag(source_p, FLAGS_KILLED)) |
951 |
{ |
952 |
sendto_server(from->from, CAP_TS6, NOCAPS, |
953 |
":%s QUIT :%s", ID(source_p), comment); |
954 |
sendto_server(from->from, NOCAPS, CAP_TS6, |
955 |
":%s QUIT :%s", source_p->name, comment); |
956 |
} |
957 |
|
958 |
/* The client *better* be off all of the lists */ |
959 |
assert(dlinkFind(&unknown_list, source_p) == NULL); |
960 |
assert(dlinkFind(&local_client_list, source_p) == NULL); |
961 |
assert(dlinkFind(&serv_list, source_p) == NULL); |
962 |
assert(dlinkFind(&oper_list, source_p) == NULL); |
963 |
|
964 |
exit_one_client(source_p, comment); |
965 |
} |
966 |
|
967 |
/* |
968 |
* dead_link_on_write - report a write error if not already dead, |
969 |
* mark it as dead then exit it |
970 |
*/ |
971 |
void |
972 |
dead_link_on_write(struct Client *client_p, int ierrno) |
973 |
{ |
974 |
dlink_node *ptr; |
975 |
|
976 |
if (IsDefunct(client_p)) |
977 |
return; |
978 |
|
979 |
dbuf_clear(&client_p->localClient->buf_recvq); |
980 |
dbuf_clear(&client_p->localClient->buf_sendq); |
981 |
|
982 |
assert(dlinkFind(&abort_list, client_p) == NULL); |
983 |
ptr = make_dlink_node(); |
984 |
/* don't let exit_aborted_clients() finish yet */ |
985 |
dlinkAddTail(client_p, ptr, &abort_list); |
986 |
|
987 |
if (eac_next == NULL) |
988 |
eac_next = ptr; |
989 |
|
990 |
SetDead(client_p); /* You are dead my friend */ |
991 |
} |
992 |
|
993 |
/* |
994 |
* dead_link_on_read - report a read error if not already dead, |
995 |
* mark it as dead then exit it |
996 |
*/ |
997 |
void |
998 |
dead_link_on_read(struct Client *client_p, int error) |
999 |
{ |
1000 |
char errmsg[255]; |
1001 |
int current_error; |
1002 |
|
1003 |
if (IsDefunct(client_p)) |
1004 |
return; |
1005 |
|
1006 |
dbuf_clear(&client_p->localClient->buf_recvq); |
1007 |
dbuf_clear(&client_p->localClient->buf_sendq); |
1008 |
|
1009 |
current_error = get_sockerr(client_p->localClient->fd.fd); |
1010 |
|
1011 |
if (IsServer(client_p) || IsHandshake(client_p)) |
1012 |
{ |
1013 |
int connected = CurrentTime - client_p->localClient->firsttime; |
1014 |
|
1015 |
if (error == 0) |
1016 |
{ |
1017 |
/* Admins get the real IP */ |
1018 |
sendto_realops_flags(UMODE_ALL, L_ADMIN, SEND_NOTICE, |
1019 |
"Server %s closed the connection", |
1020 |
get_client_name(client_p, SHOW_IP)); |
1021 |
|
1022 |
/* Opers get a masked IP */ |
1023 |
sendto_realops_flags(UMODE_ALL, L_OPER, SEND_NOTICE, |
1024 |
"Server %s closed the connection", |
1025 |
get_client_name(client_p, MASK_IP)); |
1026 |
|
1027 |
ilog(LOG_TYPE_IRCD, "Server %s closed the connection", |
1028 |
get_client_name(client_p, SHOW_IP)); |
1029 |
} |
1030 |
else |
1031 |
{ |
1032 |
report_error(L_ADMIN, "Lost connection to %s: %s", |
1033 |
get_client_name(client_p, SHOW_IP), current_error); |
1034 |
report_error(L_OPER, "Lost connection to %s: %s", |
1035 |
get_client_name(client_p, MASK_IP), current_error); |
1036 |
} |
1037 |
|
1038 |
sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE, |
1039 |
"%s had been connected for %d day%s, %2d:%02d:%02d", |
1040 |
client_p->name, connected/86400, |
1041 |
(connected/86400 == 1) ? "" : "s", |
1042 |
(connected % 86400) / 3600, (connected % 3600) / 60, |
1043 |
connected % 60); |
1044 |
} |
1045 |
|
1046 |
if (error == 0) |
1047 |
strlcpy(errmsg, "Remote host closed the connection", |
1048 |
sizeof(errmsg)); |
1049 |
else |
1050 |
snprintf(errmsg, sizeof(errmsg), "Read error: %s", |
1051 |
strerror(current_error)); |
1052 |
|
1053 |
exit_client(client_p, &me, errmsg); |
1054 |
} |
1055 |
|
1056 |
void |
1057 |
exit_aborted_clients(void) |
1058 |
{ |
1059 |
dlink_node *ptr; |
1060 |
struct Client *target_p; |
1061 |
const char *notice; |
1062 |
|
1063 |
DLINK_FOREACH_SAFE(ptr, eac_next, abort_list.head) |
1064 |
{ |
1065 |
target_p = ptr->data; |
1066 |
eac_next = ptr->next; |
1067 |
|
1068 |
if (target_p == NULL) |
1069 |
{ |
1070 |
sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE, |
1071 |
"Warning: null client on abort_list!"); |
1072 |
dlinkDelete(ptr, &abort_list); |
1073 |
free_dlink_node(ptr); |
1074 |
continue; |
1075 |
} |
1076 |
|
1077 |
dlinkDelete(ptr, &abort_list); |
1078 |
|
1079 |
if (IsSendQExceeded(target_p)) |
1080 |
notice = "Max SendQ exceeded"; |
1081 |
else |
1082 |
notice = "Write error: connection closed"; |
1083 |
|
1084 |
exit_client(target_p, &me, notice); |
1085 |
free_dlink_node(ptr); |
1086 |
} |
1087 |
} |
1088 |
|
1089 |
/* |
1090 |
* accept processing, this adds a form of "caller ID" to ircd |
1091 |
* |
1092 |
* If a client puts themselves into "caller ID only" mode, |
1093 |
* only clients that match a client pointer they have put on |
1094 |
* the accept list will be allowed to message them. |
1095 |
* |
1096 |
* Diane Bruce, "Dianora" db@db.net |
1097 |
*/ |
1098 |
|
1099 |
void |
1100 |
del_accept(struct split_nuh_item *accept_p, struct Client *client_p) |
1101 |
{ |
1102 |
dlinkDelete(&accept_p->node, &client_p->localClient->acceptlist); |
1103 |
|
1104 |
MyFree(accept_p->nickptr); |
1105 |
MyFree(accept_p->userptr); |
1106 |
MyFree(accept_p->hostptr); |
1107 |
MyFree(accept_p); |
1108 |
} |
1109 |
|
1110 |
struct split_nuh_item * |
1111 |
find_accept(const char *nick, const char *user, |
1112 |
const char *host, struct Client *client_p, |
1113 |
int (*cmpfunc)(const char *, const char *)) |
1114 |
{ |
1115 |
dlink_node *ptr = NULL; |
1116 |
|
1117 |
DLINK_FOREACH(ptr, client_p->localClient->acceptlist.head) |
1118 |
{ |
1119 |
struct split_nuh_item *accept_p = ptr->data; |
1120 |
|
1121 |
if (!cmpfunc(accept_p->nickptr, nick) && |
1122 |
!cmpfunc(accept_p->userptr, user) && |
1123 |
!cmpfunc(accept_p->hostptr, host)) |
1124 |
return accept_p; |
1125 |
} |
1126 |
|
1127 |
return NULL; |
1128 |
} |
1129 |
|
1130 |
/* accept_message() |
1131 |
* |
1132 |
* inputs - pointer to source client |
1133 |
* - pointer to target client |
1134 |
* output - 1 if accept this message 0 if not |
1135 |
* side effects - See if source is on target's allow list |
1136 |
*/ |
1137 |
int |
1138 |
accept_message(struct Client *source, |
1139 |
struct Client *target) |
1140 |
{ |
1141 |
dlink_node *ptr = NULL; |
1142 |
|
1143 |
if (source == target || find_accept(source->name, source->username, |
1144 |
source->host, target, match)) |
1145 |
return 1; |
1146 |
|
1147 |
if (HasUMode(target, UMODE_SOFTCALLERID)) |
1148 |
DLINK_FOREACH(ptr, target->channel.head) |
1149 |
if (IsMember(source, ((struct Membership *)ptr->data)->chptr)) |
1150 |
return 1; |
1151 |
|
1152 |
return 0; |
1153 |
} |
1154 |
|
1155 |
/* del_all_accepts() |
1156 |
* |
1157 |
* inputs - pointer to exiting client |
1158 |
* output - NONE |
1159 |
* side effects - Walk through given clients acceptlist and remove all entries |
1160 |
*/ |
1161 |
void |
1162 |
del_all_accepts(struct Client *client_p) |
1163 |
{ |
1164 |
dlink_node *ptr = NULL, *next_ptr = NULL; |
1165 |
|
1166 |
DLINK_FOREACH_SAFE(ptr, next_ptr, client_p->localClient->acceptlist.head) |
1167 |
del_accept(ptr->data, client_p); |
1168 |
} |
1169 |
|
1170 |
unsigned int |
1171 |
idle_time_get(const struct Client *source_p, const struct Client *target_p) |
1172 |
{ |
1173 |
unsigned int idle = 0; |
1174 |
unsigned int min_idle = 0; |
1175 |
unsigned int max_idle = 0; |
1176 |
const struct ClassItem *class = get_class_ptr(&target_p->localClient->confs); |
1177 |
|
1178 |
if (!(class->flags & CLASS_FLAGS_FAKE_IDLE) || target_p == source_p) |
1179 |
return CurrentTime - target_p->localClient->last_privmsg; |
1180 |
if (HasUMode(source_p, UMODE_OPER) && |
1181 |
!(class->flags & CLASS_FLAGS_HIDE_IDLE_FROM_OPERS)) |
1182 |
return CurrentTime - target_p->localClient->last_privmsg; |
1183 |
|
1184 |
min_idle = class->min_idle; |
1185 |
max_idle = class->max_idle; |
1186 |
|
1187 |
if (min_idle == max_idle) |
1188 |
return min_idle; |
1189 |
|
1190 |
if (class->flags & CLASS_FLAGS_RANDOM_IDLE) |
1191 |
idle = genrand_int32(); |
1192 |
else |
1193 |
idle = CurrentTime - target_p->localClient->last_privmsg; |
1194 |
|
1195 |
if (max_idle == 0) |
1196 |
idle = 0; |
1197 |
else |
1198 |
idle %= max_idle; |
1199 |
|
1200 |
if (idle < min_idle) |
1201 |
idle = min_idle + (idle % (max_idle - min_idle)); |
1202 |
|
1203 |
return idle; |
1204 |
} |