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[svn] Add documentation for SASL client protocol, same as atheme doc/SASL.
[solanum.git] / modules / core / m_join.c
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212380e3
AC		 1/*
2 * ircd-ratbox: A slightly useful ircd.
3 * m_join.c: Joins a channel.
4 *
5 * Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center
6 * Copyright (C) 1996-2002 Hybrid Development Team
7 * Copyright (C) 2002-2005 ircd-ratbox development team
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
22 * USA
23 *
24 * $Id: m_join.c 3131 2007-01-21 15:36:31Z jilles $
25 */
26
27#include "stdinc.h"
28#include "tools.h"
29#include "channel.h"
30#include "client.h"
31#include "common.h"
32#include "hash.h"
33#include "irc_string.h"
34#include "ircd.h"
35#include "numeric.h"
36#include "send.h"
37#include "s_serv.h"
38#include "s_conf.h"
39#include "s_newconf.h"
40#include "msg.h"
41#include "parse.h"
42#include "modules.h"
43#include "sprintf_irc.h"
44#include "packet.h"
45
46static int m_join(struct Client *, struct Client *, int, const char **);
47static int ms_join(struct Client *, struct Client *, int, const char **);
48
49static int h_can_create_channel;
50static int h_channel_join;
51
52struct Message join_msgtab = {
53 "JOIN", 0, 0, 0, MFLG_SLOW,
54 {mg_unreg, {m_join, 2}, {ms_join, 2}, mg_ignore, mg_ignore, {m_join, 2}}
55};
56
57mapi_clist_av1 join_clist[] = { &join_msgtab, NULL };
58
59mapi_hlist_av1 join_hlist[] = {
60 { "can_create_channel", &h_can_create_channel },
61 { "channel_join", &h_channel_join },
62 { NULL, NULL },
63};
64
65DECLARE_MODULE_AV1(join, NULL, NULL, join_clist, join_hlist, NULL, "$Revision: 3131 $");
66
67static void do_join_0(struct Client *client_p, struct Client *source_p);
68static int check_channel_name_loc(struct Client *source_p, const char *name);
69
70static void set_final_mode(struct Mode *mode, struct Mode *oldmode);
71static void remove_our_modes(struct Channel *chptr, struct Client *source_p);
72
73static char modebuf[MODEBUFLEN];
74static char parabuf[MODEBUFLEN];
75static char *mbuf;
76
77/* Check what we will forward to, without sending any notices to the user
78 * -- jilles
79 */
80static struct Channel *
81check_forward(struct Client *source_p, struct Channel *chptr,
82 char *key)
83{
84 int depth = 0, i;
85
86 /* User is +Q */
87 if (IsNoForward(source_p))
88 return NULL;
89
90 while (depth < 16)
91 {
92 chptr = find_channel(chptr->mode.forward);
93 /* Can only forward to existing channels */
94 if (chptr == NULL)
95 return NULL;
96 /* Already on there, show original error message */
97 if (IsMember(source_p, chptr))
98 return NULL;
99 /* Juped. Sending a warning notice would be unfair */
100 if (hash_find_resv(chptr->chname))
101 return NULL;
102 /* Don't forward to +Q channel */
103 if (chptr->mode.mode & MODE_DISFORWARD)
104 return NULL;
105 i = can_join(source_p, chptr, key);
106 if (i == 0)
107 return chptr;
108 if (i != ERR_INVITEONLYCHAN && i != ERR_NEEDREGGEDNICK && i != ERR_THROTTLE && i != ERR_CHANNELISFULL)
109 return NULL;
110 depth++;
111 }
112
113 return NULL;
114}
115
116/*
117 * m_join
118 * parv[0] = sender prefix
119 * parv[1] = channel
120 * parv[2] = channel password (key)
121 */
122static int
123m_join(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
124{
125 static char jbuf[BUFSIZE];
126 struct Channel *chptr = NULL;
127 struct ConfItem *aconf;
128 char *name;
129 char *key = NULL;
130 int i, flags = 0;
131 char *p = NULL, *p2 = NULL;
132 char *chanlist;
133 char *mykey;
134 int successful_join_count = 0; /* Number of channels successfully joined */
135
136 jbuf[0] = '\0';
137
138 /* rebuild the list of channels theyre supposed to be joining.
139 * this code has a side effect of losing keys, but..
140 */
141 chanlist = LOCAL_COPY(parv[1]);
142 for(name = strtoken(&p, chanlist, ","); name; name = strtoken(&p, NULL, ","))
143 {
144 /* check the length and name of channel is ok */
145 if(!check_channel_name_loc(source_p, name) || (strlen(name) > LOC_CHANNELLEN))
146 {
147 sendto_one_numeric(source_p, ERR_BADCHANNAME,
148 form_str(ERR_BADCHANNAME), (unsigned char *) name);
149 continue;
150 }
151
152 /* join 0 parts all channels */
153 if(*name == '0' && !atoi(name))
154 {
155 (void) strcpy(jbuf, "0");
156 continue;
157 }
158
159 /* check it begins with # or &, and local chans are disabled */
160 else if(!IsChannelName(name))
161 {
162 sendto_one_numeric(source_p, ERR_NOSUCHCHANNEL,
163 form_str(ERR_NOSUCHCHANNEL), name);
164 continue;
165 }
166
167 /* see if its resv'd */
168 if(!IsExemptResv(source_p) && (aconf = hash_find_resv(name)))
169 {
170 sendto_one_numeric(source_p, ERR_BADCHANNAME,
171 form_str(ERR_BADCHANNAME), name);
172
173 /* dont warn for opers */
174 if(!IsExemptJupe(source_p) && !IsOper(source_p))
175 sendto_realops_snomask(SNO_SPY, L_NETWIDE,
176 "User %s (%s@%s) is attempting to join locally juped channel %s (%s)",
177 source_p->name, source_p->username,
178 source_p->host, name, aconf->passwd);
179 /* dont update tracking for jupe exempt users, these
180 * are likely to be spamtrap leaves
181 */
182 else if(IsExemptJupe(source_p))
183 aconf->port--;
184
185 continue;
186 }
187
188 if(splitmode && !IsOper(source_p) && (*name != '&') &&
189 ConfigChannel.no_join_on_split)
190 {
191 sendto_one(source_p, form_str(ERR_UNAVAILRESOURCE),
192 me.name, source_p->name, name);
193 continue;
194 }
195
196 if(*jbuf)
197 (void) strcat(jbuf, ",");
198 (void) strlcat(jbuf, name, sizeof(jbuf));
199 }
200
201 if(parc > 2)
202 {
203 mykey = LOCAL_COPY(parv[2]);
204 key = strtoken(&p2, mykey, ",");
205 }
206
207 for(name = strtoken(&p, jbuf, ","); name;
208 key = (key) ? strtoken(&p2, NULL, ",") : NULL, name = strtoken(&p, NULL, ","))
209 {
210 hook_data_channel_activity hook_info;
211
212 /* JOIN 0 simply parts all channels the user is in */
213 if(*name == '0' && !atoi(name))
214 {
215 if(source_p->user->channel.head == NULL)
216 continue;
217
218 do_join_0(&me, source_p);
219 continue;
220 }
221
222 /* look for the channel */
223 if((chptr = find_channel(name)) != NULL)
224 {
225 if(IsMember(source_p, chptr))
226 continue;
227
228 flags = 0;
229 }
230 else
231 {
232 hook_data_client_approval moduledata;
233
234 moduledata.client = source_p;
235 moduledata.approved = 0;
236
237 call_hook(h_can_create_channel, &moduledata);
238
239 if(moduledata.approved != 0 && !IsOper(source_p))
240 {
241 sendto_one(source_p, form_str(moduledata.approved),
242 me.name, source_p->name, name);
243 continue;
244 }
245
246 if(splitmode && !IsOper(source_p) && (*name != '&') &&
247 ConfigChannel.no_create_on_split)
248 {
249 sendto_one(source_p, form_str(ERR_UNAVAILRESOURCE),
250 me.name, source_p->name, name);
251 continue;
252 }
253
254 flags = CHFL_CHANOP;
255 }
256
257 if((dlink_list_length(&source_p->user->channel) >=
258 (unsigned long) ConfigChannel.max_chans_per_user) &&
259 (!IsOper(source_p) ||
260 (dlink_list_length(&source_p->user->channel) >=
261 (unsigned long) ConfigChannel.max_chans_per_user * 3)))
262 {
263 sendto_one(source_p, form_str(ERR_TOOMANYCHANNELS),
264 me.name, source_p->name, name);
265 if(successful_join_count)
266 source_p->localClient->last_join_time = CurrentTime;
267 return 0;
268 }
269
270 if(flags == 0) /* if channel doesn't exist, don't penalize */
271 successful_join_count++;
272
273 if(chptr == NULL) /* If I already have a chptr, no point doing this */
274 {
275 chptr = get_or_create_channel(source_p, name, NULL);
276
277 if(chptr == NULL)
278 {
279 sendto_one(source_p, form_str(ERR_UNAVAILRESOURCE),
280 me.name, source_p->name, name);
281 if(successful_join_count > 0)
282 successful_join_count--;
283 continue;
284 }
285 }
286
287 if(!IsOper(source_p) && !IsExemptSpambot(source_p))
288 check_spambot_warning(source_p, name);
289
290 /* can_join checks for +i key, bans etc */
291 if((i = can_join(source_p, chptr, key)))
292 {
293 if ((i != ERR_NEEDREGGEDNICK && i != ERR_THROTTLE && i != ERR_INVITEONLYCHAN && i != ERR_CHANNELISFULL) ||
294 (!ConfigChannel.use_forward || (chptr = check_forward(source_p, chptr, key)) == NULL))
295 {
296 sendto_one(source_p, form_str(i), me.name, source_p->name, name);
297 if(successful_join_count > 0)
298 successful_join_count--;
299 continue;
300 }
301 sendto_one_numeric(source_p, ERR_LINKCHANNEL, form_str(ERR_LINKCHANNEL), name, chptr->chname);
302 }
303
304 /* add the user to the channel */
305 add_user_to_channel(chptr, source_p, flags);
306 if (chptr->mode.join_num &&
307 CurrentTime - chptr->join_delta >= chptr->mode.join_time)
308 {
309 chptr->join_count = 0;
310 chptr->join_delta = CurrentTime;
311 }
312 chptr->join_count++;
313
314 /* we send the user their join here, because we could have to
315 * send a mode out next.
316 */
317 sendto_channel_local(ALL_MEMBERS, chptr, ":%s!%s@%s JOIN :%s",
318 source_p->name,
319 source_p->username, source_p->host, chptr->chname);
320
321 /* its a new channel, set +nt and burst. */
322 if(flags & CHFL_CHANOP)
323 {
324 chptr->channelts = CurrentTime;
325 chptr->mode.mode |= MODE_TOPICLIMIT;
326 chptr->mode.mode |= MODE_NOPRIVMSGS;
327
328 sendto_channel_local(ONLY_CHANOPS, chptr, ":%s MODE %s +nt",
329 me.name, chptr->chname);
330
331 if(*chptr->chname == '#')
332 {
333 sendto_server(client_p, chptr, CAP_TS6, NOCAPS,
334 ":%s SJOIN %ld %s +nt :@%s",
335 me.id, (long) chptr->channelts,
336 chptr->chname, source_p->id);
337 sendto_server(client_p, chptr, NOCAPS, CAP_TS6,
338 ":%s SJOIN %ld %s +nt :@%s",
339 me.name, (long) chptr->channelts,
340 chptr->chname, source_p->name);
341 }
342 }
343 else
344 {
345 const char *modes = channel_modes(chptr, &me);
346
347 sendto_server(client_p, chptr, CAP_TS6, NOCAPS,
348 ":%s JOIN %ld %s %s",
349 use_id(source_p), (long) chptr->channelts,
350 chptr->chname, modes);
351
352 sendto_server(client_p, chptr, NOCAPS, CAP_TS6,
353 ":%s SJOIN %ld %s %s :%s",
354 me.name, (long) chptr->channelts,
355 chptr->chname, modes, source_p->name);
356 }
357
358 del_invite(chptr, source_p);
359
360 if(chptr->topic != NULL)
361 {
362 sendto_one(source_p, form_str(RPL_TOPIC), me.name,
363 source_p->name, chptr->chname, chptr->topic);
364
365 sendto_one(source_p, form_str(RPL_TOPICWHOTIME),
366 me.name, source_p->name, chptr->chname,
367 chptr->topic_info, chptr->topic_time);
368 }
369
370 channel_member_names(chptr, source_p, 1);
371
372 if(successful_join_count)
373 source_p->localClient->last_join_time = CurrentTime;
374
375 hook_info.client = source_p;
376 hook_info.chptr = chptr;
377 hook_info.key = key;
378 call_hook(h_channel_join, &hook_info);
379 }
380
381 return 0;
382}
383
384/*
385 * ms_join
386 *
387 * inputs -
388 * output - none
389 * side effects - handles remote JOIN's sent by servers. In TSora
390 * remote clients are joined using SJOIN, hence a
391 * JOIN sent by a server on behalf of a client is an error.
392 * here, the initial code is in to take an extra parameter
393 * and use it for the TimeStamp on a new channel.
394 */
395static int
396ms_join(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
397{
398 struct Channel *chptr;
399 static struct Mode mode, *oldmode;
400 const char *s;
401 const char *modes;
402 time_t oldts;
403 time_t newts;
404 int isnew;
405 int args = 0;
406 int keep_our_modes = YES;
407 int keep_new_modes = YES;
408 dlink_node *ptr, *next_ptr;
409
410 /* special case for join 0 */
411 if((parv[1][0] == '0') && (parv[1][1] == '\0') && parc == 2)
412 {
413 do_join_0(client_p, source_p);
414 return 0;
415 }
416
417 if(parc < 4)
418 return 0;
419
420 if(!IsChannelName(parv[2]) || !check_channel_name(parv[2]))
421 return 0;
422
423 /* joins for local channels cant happen. */
424 if(parv[2][0] == '&')
425 return 0;
426
427 mbuf = modebuf;
428 mode.key[0] = mode.forward[0] = '\0';
429 mode.mode = mode.limit = mode.join_num = mode.join_time = 0;
430
431 s = parv[3];
432 while(*s)
433 {
434 switch (*(s++))
435 {
436 case 'i':
437 mode.mode |= MODE_INVITEONLY;
438 break;
439 case 'n':
440 mode.mode |= MODE_NOPRIVMSGS;
441 break;
442 case 'p':
443 mode.mode |= MODE_PRIVATE;
444 break;
445 case 's':
446 mode.mode |= MODE_SECRET;
447 break;
448 case 'm':
449 mode.mode |= MODE_MODERATED;
450 break;
451 case 't':
452 mode.mode |= MODE_TOPICLIMIT;
453 break;
454 case 'r':
455 mode.mode |= MODE_REGONLY;
456 break;
457 case 'L':
458 mode.mode |= MODE_EXLIMIT;
459 break;
460 case 'P':
461 mode.mode |= MODE_PERMANENT;
462 break;
463 case 'c':
464 mode.mode |= MODE_NOCOLOR;
465 break;
466 case 'g':
467 mode.mode |= MODE_FREEINVITE;
468 break;
469 case 'z':
470 mode.mode |= MODE_OPMODERATE;
471 break;
472 case 'F':
473 mode.mode |= MODE_FREETARGET;
474 break;
475 case 'Q':
476 mode.mode |= MODE_DISFORWARD;
477 break;
478 case 'f':
479 if(parc < 5 + args)
480 return 0;
481 strlcpy(mode.forward, parv[4 + args], sizeof(mode.forward));
482 args++;
483 break;
484 case 'j':
485 /* sent a +j without an arg. */
486 if(parc < 5 + args)
487 return 0;
488 sscanf(parv[4 + args], "%d:%d", &mode.join_num, &mode.join_time);
489 args++;
490 break;
491 case 'k':
492 /* sent a +k without a key, eek. */
493 if(parc < 5 + args)
494 return 0;
495 strlcpy(mode.key, parv[4 + args], sizeof(mode.key));
496 args++;
497 break;
498 case 'l':
499 /* sent a +l without a limit. */
500 if(parc < 5 + args)
501 return 0;
502 mode.limit = atoi(parv[4 + args]);
503 args++;
504 break;
505 }
506 }
507
508 if((chptr = get_or_create_channel(source_p, parv[2], &isnew)) == NULL)
509 return 0;
510
511 newts = atol(parv[1]);
512 oldts = chptr->channelts;
513 oldmode = &chptr->mode;
514
515#ifdef IGNORE_BOGUS_TS
516 if(newts < 800000000)
517 {
518 sendto_realops_snomask(SNO_DEBUG, L_ALL,
519 "*** Bogus TS %ld on %s ignored from %s",
520 (long) newts, chptr->chname, client_p->name);
521 newts = (oldts == 0) ? oldts : 800000000;
522 }
523#else
524 /* making a channel TS0 */
525 if(!isnew && !newts && oldts)
526 {
527 sendto_channel_local(ALL_MEMBERS, chptr,
528 ":%s NOTICE %s :*** Notice -- TS for %s changed from %ld to 0",
529 me.name, chptr->chname, chptr->chname, (long) oldts);
530 sendto_realops_snomask(SNO_GENERAL, L_ALL,
531 "Server %s changing TS on %s from %ld to 0",
532 source_p->name, chptr->chname, (long) oldts);
533 }
534#endif
535
536 if(isnew)
537 chptr->channelts = newts;
538 else if(newts == 0 || oldts == 0)
539 chptr->channelts = 0;
540 else if(newts == oldts)
541 ;
542 else if(newts < oldts)
543 {
544 keep_our_modes = NO;
545 chptr->channelts = newts;
546 }
547 else
548 keep_new_modes = NO;
549
550 if(!keep_new_modes)
551 mode = *oldmode;
552 else if(keep_our_modes)
553 {
554 mode.mode |= oldmode->mode;
555 if(oldmode->limit > mode.limit)
556 mode.limit = oldmode->limit;
557 if(strcmp(mode.key, oldmode->key) < 0)
558 strcpy(mode.key, oldmode->key);
559 if(oldmode->join_num > mode.join_num ||
560 (oldmode->join_num == mode.join_num &&
561 oldmode->join_time > mode.join_time))
562 {
563 mode.join_num = oldmode->join_num;
564 mode.join_time = oldmode->join_time;
565 }
566 if(irccmp(mode.forward, oldmode->forward) < 0)
567 strcpy(mode.forward, oldmode->forward);
568 }
569 else
570 {
571 /* If setting -j, clear join throttle state -- jilles */
572 if (!mode.join_num)
573 chptr->join_count = chptr->join_delta = 0;
574 }
575
576 set_final_mode(&mode, oldmode);
577 chptr->mode = mode;
578
579 /* Lost the TS, other side wins, so remove modes on this side */
580 if(!keep_our_modes)
581 {
582 remove_our_modes(chptr, source_p);
583 DLINK_FOREACH_SAFE(ptr, next_ptr, chptr->invites.head)
584 {
585 del_invite(chptr, ptr->data);
586 }
587 sendto_channel_local(ALL_MEMBERS, chptr,
588 ":%s NOTICE %s :*** Notice -- TS for %s changed from %ld to %ld",
589 me.name, chptr->chname, chptr->chname,
590 (long) oldts, (long) newts);
591 }
592
593 if(*modebuf != '\0')
594 sendto_channel_local(ALL_MEMBERS, chptr, ":%s MODE %s %s %s",
595 source_p->user->server, chptr->chname, modebuf, parabuf);
596
597 *modebuf = *parabuf = '\0';
598
599 if(!IsMember(source_p, chptr))
600 {
601 add_user_to_channel(chptr, source_p, CHFL_PEON);
602 if (chptr->mode.join_num &&
603 CurrentTime - chptr->join_delta >= chptr->mode.join_time)
604 {
605 chptr->join_count = 0;
606 chptr->join_delta = CurrentTime;
607 }
608 chptr->join_count++;
609 sendto_channel_local(ALL_MEMBERS, chptr, ":%s!%s@%s JOIN :%s",
610 source_p->name, source_p->username,
611 source_p->host, chptr->chname);
612 }
613
614 modes = channel_modes(chptr, client_p);
615 sendto_server(client_p, chptr, CAP_TS6, NOCAPS,
616 ":%s JOIN %ld %s %s",
617 source_p->id, (long) chptr->channelts, chptr->chname, modes);
618 sendto_server(client_p, chptr, NOCAPS, CAP_TS6,
619 ":%s SJOIN %ld %s %s :%s",
620 source_p->user->server, (long) chptr->channelts,
621 chptr->chname, modes, source_p->name);
622 return 0;
623}
624
625/*
626 * do_join_0
627 *
628 * inputs - pointer to client doing join 0
629 * output - NONE
630 * side effects - Use has decided to join 0. This is legacy
631 * from the days when channels were numbers not names. *sigh*
632 * There is a bunch of evilness necessary here due to
633 * anti spambot code.
634 */
635static void
636do_join_0(struct Client *client_p, struct Client *source_p)
637{
638 struct membership *msptr;
639 struct Channel *chptr = NULL;
640 dlink_node *ptr;
641
642 /* Finish the flood grace period... */
643 if(MyClient(source_p) && !IsFloodDone(source_p))
644 flood_endgrace(source_p);
645
646
647 sendto_server(client_p, NULL, NOCAPS, NOCAPS, ":%s JOIN 0", source_p->name);
648
649 if(source_p->user->channel.head && MyConnect(source_p) &&
650 !IsOper(source_p) && !IsExemptSpambot(source_p))
651 check_spambot_warning(source_p, NULL);
652
653 while((ptr = source_p->user->channel.head))
654 {
655 msptr = ptr->data;
656 chptr = msptr->chptr;
657 sendto_channel_local(ALL_MEMBERS, chptr, ":%s!%s@%s PART %s",
658 source_p->name,
659 source_p->username, source_p->host, chptr->chname);
660 remove_user_from_channel(msptr);
661 }
662}
663
664static int
665check_channel_name_loc(struct Client *source_p, const char *name)
666{
667 s_assert(name != NULL);
668 if(EmptyString(name))
669 return 0;
670
671 if(ConfigFileEntry.disable_fake_channels && !IsOper(source_p))
672 {
673 for(; *name; ++name)
674 {
675 if(!IsChanChar(*name) || IsFakeChanChar(*name))
676 return 0;
677 }
678 }
679 else
680 {
681 for(; *name; ++name)
682 {
683 if(!IsChanChar(*name))
684 return 0;
685 }
686 }
687
688 return 1;
689}
690
691struct mode_letter
692{
693 int mode;
694 char letter;
695};
696
697static struct mode_letter flags[] = {
698 {MODE_NOPRIVMSGS, 'n'},
699 {MODE_TOPICLIMIT, 't'},
700 {MODE_SECRET, 's'},
701 {MODE_MODERATED, 'm'},
702 {MODE_INVITEONLY, 'i'},
703 {MODE_PRIVATE, 'p'},
704 {MODE_REGONLY, 'r'},
705 {MODE_EXLIMIT, 'L'},
706 {MODE_PERMANENT, 'P'},
707 {MODE_NOCOLOR, 'c'},
708 {MODE_FREEINVITE, 'g'},
709 {MODE_OPMODERATE, 'z'},
710 {MODE_FREETARGET, 'F'},
711 {MODE_DISFORWARD, 'Q'},
712 {0, 0}
713};
714
715static void
716set_final_mode(struct Mode *mode, struct Mode *oldmode)
717{
718 int dir = MODE_QUERY;
719 char *pbuf = parabuf;
720 int len;
721 int i;
722
723 /* ok, first get a list of modes we need to add */
724 for(i = 0; flags[i].letter; i++)
725 {
726 if((mode->mode & flags[i].mode) && !(oldmode->mode & flags[i].mode))
727 {
728 if(dir != MODE_ADD)
729 {
730 *mbuf++ = '+';
731 dir = MODE_ADD;
732 }
733 *mbuf++ = flags[i].letter;
734 }
735 }
736
737 /* now the ones we need to remove. */
738 for(i = 0; flags[i].letter; i++)
739 {
740 if((oldmode->mode & flags[i].mode) && !(mode->mode & flags[i].mode))
741 {
742 if(dir != MODE_DEL)
743 {
744 *mbuf++ = '-';
745 dir = MODE_DEL;
746 }
747 *mbuf++ = flags[i].letter;
748 }
749 }
750
751 if(oldmode->limit && !mode->limit)
752 {
753 if(dir != MODE_DEL)
754 {
755 *mbuf++ = '-';
756 dir = MODE_DEL;
757 }
758 *mbuf++ = 'l';
759 }
760 if(oldmode->key[0] && !mode->key[0])
761 {
762 if(dir != MODE_DEL)
763 {
764 *mbuf++ = '-';
765 dir = MODE_DEL;
766 }
767 *mbuf++ = 'k';
768 len = ircsprintf(pbuf, "%s ", oldmode->key);
769 pbuf += len;
770 }
771 if(oldmode->join_num && !mode->join_num)
772 {
773 if(dir != MODE_DEL)
774 {
775 *mbuf++ = '-';
776 dir = MODE_DEL;
777 }
778 *mbuf++ = 'j';
779 }
780 if(oldmode->forward[0] && !mode->forward[0])
781 {
782 if(dir != MODE_DEL)
783 {
784 *mbuf++ = '-';
785 dir = MODE_DEL;
786 }
787 *mbuf++ = 'f';
788 }
789 if(mode->limit && oldmode->limit != mode->limit)
790 {
791 if(dir != MODE_ADD)
792 {
793 *mbuf++ = '+';
794 dir = MODE_ADD;
795 }
796 *mbuf++ = 'l';
797 len = ircsprintf(pbuf, "%d ", mode->limit);
798 pbuf += len;
799 }
800 if(mode->key[0] && strcmp(oldmode->key, mode->key))
801 {
802 if(dir != MODE_ADD)
803 {
804 *mbuf++ = '+';
805 dir = MODE_ADD;
806 }
807 *mbuf++ = 'k';
808 len = ircsprintf(pbuf, "%s ", mode->key);
809 pbuf += len;
810 }
811 if(mode->join_num && (oldmode->join_num != mode->join_num || oldmode->join_time != mode->join_time))
812 {
813 if(dir != MODE_ADD)
814 {
815 *mbuf++ = '+';
816 dir = MODE_ADD;
817 }
818 *mbuf++ = 'j';
819 len = ircsprintf(pbuf, "%d:%d ", mode->join_num, mode->join_time);
820 pbuf += len;
821 }
822 if(mode->forward[0] && strcmp(oldmode->forward, mode->forward) && ConfigChannel.use_forward)
823 {
824 if(dir != MODE_ADD)
825 {
826 *mbuf++ = '+';
827 dir = MODE_ADD;
828 }
829 *mbuf++ = 'f';
830 len = ircsprintf(pbuf, "%s ", mode->forward);
831 pbuf += len;
832 }
833 *mbuf = '\0';
834}
835
836/*
837 * remove_our_modes
838 *
839 * inputs -
840 * output -
841 * side effects -
842 */
843static void
844remove_our_modes(struct Channel *chptr, struct Client *source_p)
845{
846 struct membership *msptr;
847 dlink_node *ptr;
848 char lmodebuf[MODEBUFLEN];
849 char *lpara[MAXMODEPARAMS];
850 int count = 0;
851 int i;
852
853 mbuf = lmodebuf;
854 *mbuf++ = '-';
855
856 for(i = 0; i < MAXMODEPARAMS; i++)
857 lpara[i] = NULL;
858
859 DLINK_FOREACH(ptr, chptr->members.head)
860 {
861 msptr = ptr->data;
862
863 if(is_chanop(msptr))
864 {
865 msptr->flags &= ~CHFL_CHANOP;
866 lpara[count++] = msptr->client_p->name;
867 *mbuf++ = 'o';
868
869 /* +ov, might not fit so check. */
870 if(is_voiced(msptr))
871 {
872 if(count >= MAXMODEPARAMS)
873 {
874 *mbuf = '\0';
875 sendto_channel_local(ALL_MEMBERS, chptr,
876 ":%s MODE %s %s %s %s %s %s",
877 me.name, chptr->chname,
878 lmodebuf, lpara[0], lpara[1],
879 lpara[2], lpara[3]);
880
881 /* preserve the initial '-' */
882 mbuf = lmodebuf;
883 *mbuf++ = '-';
884 count = 0;
885
886 for(i = 0; i < MAXMODEPARAMS; i++)
887 lpara[i] = NULL;
888 }
889
890 msptr->flags &= ~CHFL_VOICE;
891 lpara[count++] = msptr->client_p->name;
892 *mbuf++ = 'v';
893 }
894 }
895 else if(is_voiced(msptr))
896 {
897 msptr->flags &= ~CHFL_VOICE;
898 lpara[count++] = msptr->client_p->name;
899 *mbuf++ = 'v';
900 }
901 else
902 continue;
903
904 if(count >= MAXMODEPARAMS)
905 {
906 *mbuf = '\0';
907 sendto_channel_local(ALL_MEMBERS, chptr,
908 ":%s MODE %s %s %s %s %s %s",
909 me.name, chptr->chname, lmodebuf,
910 lpara[0], lpara[1], lpara[2], lpara[3]);
911 mbuf = lmodebuf;
912 *mbuf++ = '-';
913 count = 0;
914
915 for(i = 0; i < MAXMODEPARAMS; i++)
916 lpara[i] = NULL;
917 }
918 }
919
920 if(count != 0)
921 {
922 *mbuf = '\0';
923 sendto_channel_local(ALL_MEMBERS, chptr,
924 ":%s MODE %s %s %s %s %s %s",
925 me.name, chptr->chname, lmodebuf,
926 EmptyString(lpara[0]) ? "" : lpara[0],
927 EmptyString(lpara[1]) ? "" : lpara[1],
928 EmptyString(lpara[2]) ? "" : lpara[2],
929 EmptyString(lpara[3]) ? "" : lpara[3]);
930
931 }
932}
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