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[solanum.git] / src / chmode.c
1 /*
2 * charybdis: A slightly useful ircd.
3 * chmode.c: channel mode management
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 * Copyright (C) 2005-2006 charybdis development team
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
23 * USA
24 *
25 * $Id: chmode.c 3580 2007-11-07 23:45:14Z jilles $
26 */
27
28 #include "stdinc.h"
29 #include "channel.h"
30 #include "client.h"
31 #include "common.h"
32 #include "hash.h"
33 #include "hook.h"
34 #include "match.h"
35 #include "ircd.h"
36 #include "numeric.h"
37 #include "s_serv.h" /* captab */
38 #include "s_user.h"
39 #include "send.h"
40 #include "whowas.h"
41 #include "s_conf.h" /* ConfigFileEntry, ConfigChannel */
42 #include "s_newconf.h"
43 #include "logger.h"
44 #include "chmode.h"
45
46 /* bitmasks for error returns, so we send once per call */
47 #define SM_ERR_NOTS 0x00000001 /* No TS on channel */
48 #define SM_ERR_NOOPS 0x00000002 /* No chan ops */
49 #define SM_ERR_UNKNOWN 0x00000004
50 #define SM_ERR_RPL_C 0x00000008
51 #define SM_ERR_RPL_B 0x00000010
52 #define SM_ERR_RPL_E 0x00000020
53 #define SM_ERR_NOTONCHANNEL 0x00000040 /* Not on channel */
54 #define SM_ERR_RPL_I 0x00000100
55 #define SM_ERR_RPL_D 0x00000200
56 #define SM_ERR_NOPRIVS 0x00000400
57 #define SM_ERR_RPL_Q 0x00000800
58 #define SM_ERR_RPL_F 0x00001000
59 #define SM_ERR_MLOCK 0x00002000
60
61 #define MAXMODES_SIMPLE 46 /* a-zA-Z except bqeIov */
62
63 static struct ChModeChange mode_changes[BUFSIZE];
64 static int mode_count;
65 static int mode_limit;
66 static int mode_limit_simple;
67 static int mask_pos;
68 static int removed_mask_pos;
69
70 char cflagsbuf[256];
71 char cflagsmyinfo[256];
72
73 int chmode_flags[256];
74
75 extern int h_get_channel_access;
76
77 /* OPTIMIZE ME! -- dwr */
78 void
79 construct_cflags_strings(void)
80 {
81 int i;
82 char *ptr = cflagsbuf;
83 char *ptr2 = cflagsmyinfo;
84
85 *ptr = '\0';
86 *ptr2 = '\0';
87
88 for(i = 0; i < 256; i++)
89 {
90 if( !(chmode_table[i].set_func == chm_ban) &&
91 !(chmode_table[i].set_func == chm_forward) &&
92 !(chmode_table[i].set_func == chm_throttle) &&
93 !(chmode_table[i].set_func == chm_key) &&
94 !(chmode_table[i].set_func == chm_limit) &&
95 !(chmode_table[i].set_func == chm_op) &&
96 !(chmode_table[i].set_func == chm_voice))
97 {
98 chmode_flags[i] = chmode_table[i].mode_type;
99 }
100 else
101 {
102 chmode_flags[i] = 0;
103 }
104
105 switch (chmode_flags[i])
106 {
107 case MODE_FREETARGET:
108 case MODE_DISFORWARD:
109 if(ConfigChannel.use_forward)
110 *ptr++ = (char) i;
111 break;
112 default:
113 if(chmode_flags[i] != 0)
114 {
115 *ptr++ = (char) i;
116 }
117 }
118
119 /* Should we leave orphaned check here? -- dwr */
120 if(!(chmode_table[i].set_func == chm_nosuch) && !(chmode_table[i].set_func == chm_orphaned))
121 {
122 *ptr2++ = (char) i;
123 }
124 }
125
126 *ptr++ = '\0';
127 *ptr2++ = '\0';
128 }
129
130 /*
131 * find_umode_slot
132 *
133 * inputs - NONE
134 * outputs - an available cflag bitmask or
135 * 0 if no cflags are available
136 * side effects - NONE
137 */
138 static unsigned int
139 find_cflag_slot(void)
140 {
141 unsigned int all_cflags = 0, my_cflag = 0, i;
142
143 for (i = 0; i < 256; i++)
144 all_cflags |= chmode_flags[i];
145
146 for (my_cflag = 1; my_cflag && (all_cflags & my_cflag);
147 my_cflag <<= 1);
148
149 return my_cflag;
150 }
151
152 unsigned int
153 cflag_add(char c_, ChannelModeFunc function)
154 {
155 int c = (unsigned char)c_;
156
157 if (chmode_table[c].set_func != chm_nosuch &&
158 chmode_table[c].set_func != chm_orphaned)
159 return 0;
160
161 if (chmode_table[c].set_func == chm_nosuch)
162 chmode_table[c].mode_type = find_cflag_slot();
163 if (chmode_table[c].mode_type == 0)
164 return 0;
165 chmode_table[c].set_func = function;
166 construct_cflags_strings();
167 return chmode_table[c].mode_type;
168 }
169
170 void
171 cflag_orphan(char c_)
172 {
173 int c = (unsigned char)c_;
174
175 s_assert(chmode_flags[c] != 0);
176 chmode_table[c].set_func = chm_orphaned;
177 construct_cflags_strings();
178 }
179
180 int
181 get_channel_access(struct Client *source_p, struct membership *msptr)
182 {
183 hook_data_channel_approval moduledata;
184
185 if(!MyClient(source_p))
186 return CHFL_CHANOP;
187
188 if (msptr == NULL)
189 return CHFL_PEON;
190
191 moduledata.client = source_p;
192 moduledata.chptr = msptr->chptr;
193 moduledata.msptr = msptr;
194 moduledata.target = NULL;
195 moduledata.approved = is_chanop(msptr) ? CHFL_CHANOP : CHFL_PEON;
196
197 call_hook(h_get_channel_access, &moduledata);
198
199 return moduledata.approved;
200 }
201
202 /* add_id()
203 *
204 * inputs - client, channel, id to add, type, forward
205 * outputs - 0 on failure, 1 on success
206 * side effects - given id is added to the appropriate list
207 */
208 int
209 add_id(struct Client *source_p, struct Channel *chptr, const char *banid, const char *forward,
210 rb_dlink_list * list, long mode_type)
211 {
212 struct Ban *actualBan;
213 static char who[USERHOST_REPLYLEN];
214 char *realban = LOCAL_COPY(banid);
215 rb_dlink_node *ptr;
216
217 /* dont let local clients overflow the banlist, or set redundant
218 * bans
219 */
220 if(MyClient(source_p))
221 {
222 if((rb_dlink_list_length(&chptr->banlist) + rb_dlink_list_length(&chptr->exceptlist) + rb_dlink_list_length(&chptr->invexlist) + rb_dlink_list_length(&chptr->quietlist)) >= (chptr->mode.mode & MODE_EXLIMIT ? ConfigChannel.max_bans_large : ConfigChannel.max_bans))
223 {
224 sendto_one(source_p, form_str(ERR_BANLISTFULL),
225 me.name, source_p->name, chptr->chname, realban);
226 return 0;
227 }
228
229 RB_DLINK_FOREACH(ptr, list->head)
230 {
231 actualBan = ptr->data;
232 if(mask_match(actualBan->banstr, realban))
233 return 0;
234 }
235 }
236 /* dont let remotes set duplicates */
237 else
238 {
239 RB_DLINK_FOREACH(ptr, list->head)
240 {
241 actualBan = ptr->data;
242 if(!irccmp(actualBan->banstr, realban))
243 return 0;
244 }
245 }
246
247
248 if(IsPerson(source_p))
249 rb_sprintf(who, "%s!%s@%s", source_p->name, source_p->username, source_p->host);
250 else
251 rb_strlcpy(who, source_p->name, sizeof(who));
252
253 actualBan = allocate_ban(realban, who, forward);
254 actualBan->when = rb_current_time();
255
256 rb_dlinkAdd(actualBan, &actualBan->node, list);
257
258 /* invalidate the can_send() cache */
259 if(mode_type == CHFL_BAN || mode_type == CHFL_QUIET || mode_type == CHFL_EXCEPTION)
260 chptr->bants++;
261
262 return 1;
263 }
264
265 /* del_id()
266 *
267 * inputs - channel, id to remove, type
268 * outputs - pointer to ban that was removed, if any
269 * side effects - given id is removed from the appropriate list and returned
270 */
271 struct Ban *
272 del_id(struct Channel *chptr, const char *banid, rb_dlink_list * list, long mode_type)
273 {
274 rb_dlink_node *ptr;
275 struct Ban *banptr;
276
277 if(EmptyString(banid))
278 return NULL;
279
280 RB_DLINK_FOREACH(ptr, list->head)
281 {
282 banptr = ptr->data;
283
284 if(irccmp(banid, banptr->banstr) == 0)
285 {
286 rb_dlinkDelete(&banptr->node, list);
287
288 /* invalidate the can_send() cache */
289 if(mode_type == CHFL_BAN || mode_type == CHFL_QUIET || mode_type == CHFL_EXCEPTION)
290 chptr->bants++;
291
292 return banptr;
293 }
294 }
295
296 return NULL;
297 }
298
299 /* check_string()
300 *
301 * input - string to check
302 * output - pointer to 'fixed' string, or "*" if empty
303 * side effects - any white space found becomes \0
304 */
305 static char *
306 check_string(char *s)
307 {
308 char *str = s;
309 static char splat[] = "*";
310 if(!(s && *s))
311 return splat;
312
313 for(; *s; ++s)
314 {
315 if(IsSpace(*s))
316 {
317 *s = '\0';
318 break;
319 }
320 }
321 return str;
322 }
323
324 /* pretty_mask()
325 *
326 * inputs - mask to pretty
327 * outputs - better version of the mask
328 * side effects - mask is chopped to limits, and transformed:
329 * x!y@z => x!y@z
330 * y@z => *!y@z
331 * x!y => x!y@*
332 * x => x!*@*
333 * z.d => *!*@z.d
334 */
335 static char *
336 pretty_mask(const char *idmask)
337 {
338 static char mask_buf[BUFSIZE];
339 int old_mask_pos;
340 char *nick, *user, *host, *forward = NULL;
341 char splat[] = "*";
342 char *t, *at, *ex, *ex2;
343 char ne = 0, ue = 0, he = 0, fe = 0; /* save values at nick[NICKLEN], et all */
344 char e2 = 0; /* save value that delimits forward channel */
345 char *mask;
346
347 mask = LOCAL_COPY(idmask);
348 mask = check_string(mask);
349 collapse(mask);
350
351 nick = user = host = splat;
352
353 if((size_t) BUFSIZE - mask_pos < strlen(mask) + 5)
354 return NULL;
355
356 old_mask_pos = mask_pos;
357
358 if (*mask == '$')
359 {
360 mask_pos += rb_sprintf(mask_buf + mask_pos, "%s", mask) + 1;
361 t = mask_buf + old_mask_pos + 1;
362 if (*t == '!')
363 *t = '~';
364 if (*t == '~')
365 t++;
366 *t = ToLower(*t);
367 return mask_buf + old_mask_pos;
368 }
369
370 at = ex = ex2 = NULL;
371 if((t = strchr(mask, '@')) != NULL)
372 {
373 at = t;
374 *t++ = '\0';
375 if(*t != '\0')
376 host = t;
377
378 if((t = strchr(mask, '!')) != NULL)
379 {
380 ex = t;
381 *t++ = '\0';
382 if(*t != '\0')
383 user = t;
384 if(*mask != '\0')
385 nick = mask;
386 }
387 else
388 {
389 if(*mask != '\0')
390 user = mask;
391 }
392
393 if((t = strchr(host, '!')) != NULL || (t = strchr(host, '$')) != NULL)
394 {
395 ex2 = t;
396 e2 = *t;
397 *t++= '\0';
398 if (*t != '\0')
399 forward = t;
400 }
401 }
402 else if((t = strchr(mask, '!')) != NULL)
403 {
404 ex = t;
405 *t++ = '\0';
406 if(*mask != '\0')
407 nick = mask;
408 if(*t != '\0')
409 user = t;
410 }
411 else if(strchr(mask, '.') != NULL || strchr(mask, ':') != NULL)
412 {
413 if(*mask != '\0')
414 host = mask;
415 }
416 else
417 {
418 if(*mask != '\0')
419 nick = mask;
420 }
421
422 /* truncate values to max lengths */
423 if(strlen(nick) > NICKLEN - 1)
424 {
425 ne = nick[NICKLEN - 1];
426 nick[NICKLEN - 1] = '\0';
427 }
428 if(strlen(user) > USERLEN)
429 {
430 ue = user[USERLEN];
431 user[USERLEN] = '\0';
432 }
433 if(strlen(host) > HOSTLEN)
434 {
435 he = host[HOSTLEN];
436 host[HOSTLEN] = '\0';
437 }
438 if(forward && strlen(forward) > CHANNELLEN)
439 {
440 fe = forward[CHANNELLEN];
441 forward[CHANNELLEN] = '\0';
442 }
443
444 if (forward)
445 mask_pos += rb_sprintf(mask_buf + mask_pos, "%s!%s@%s$%s", nick, user, host, forward) + 1;
446 else
447 mask_pos += rb_sprintf(mask_buf + mask_pos, "%s!%s@%s", nick, user, host) + 1;
448
449 /* restore mask, since we may need to use it again later */
450 if(at)
451 *at = '@';
452 if(ex)
453 *ex = '!';
454 if(ex2)
455 *ex2 = e2;
456 if(ne)
457 nick[NICKLEN - 1] = ne;
458 if(ue)
459 user[USERLEN] = ue;
460 if(he)
461 host[HOSTLEN] = he;
462 if(fe)
463 forward[CHANNELLEN] = fe;
464
465 return mask_buf + old_mask_pos;
466 }
467
468 /* check_forward()
469 *
470 * input - client, channel to set mode on, target channel name
471 * output - true if forwarding should be allowed
472 * side effects - numeric sent if not allowed
473 */
474 static int
475 check_forward(struct Client *source_p, struct Channel *chptr,
476 const char *forward)
477 {
478 struct Channel *targptr;
479 struct membership *msptr;
480
481 if(!check_channel_name(forward) ||
482 (MyClient(source_p) && (strlen(forward) > LOC_CHANNELLEN || hash_find_resv(forward))))
483 {
484 sendto_one_numeric(source_p, ERR_BADCHANNAME, form_str(ERR_BADCHANNAME), forward);
485 return 0;
486 }
487 /* don't forward to inconsistent target -- jilles */
488 if(chptr->chname[0] == '#' && forward[0] == '&')
489 {
490 sendto_one_numeric(source_p, ERR_BADCHANNAME,
491 form_str(ERR_BADCHANNAME), forward);
492 return 0;
493 }
494 if(MyClient(source_p) && (targptr = find_channel(forward)) == NULL)
495 {
496 sendto_one_numeric(source_p, ERR_NOSUCHCHANNEL,
497 form_str(ERR_NOSUCHCHANNEL), forward);
498 return 0;
499 }
500 if(MyClient(source_p) && !(targptr->mode.mode & MODE_FREETARGET))
501 {
502 if((msptr = find_channel_membership(targptr, source_p)) == NULL ||
503 get_channel_access(source_p, msptr) != CHFL_CHANOP)
504 {
505 sendto_one(source_p, form_str(ERR_CHANOPRIVSNEEDED),
506 me.name, source_p->name, targptr->chname);
507 return 0;
508 }
509 }
510 return 1;
511 }
512
513 /* fix_key()
514 *
515 * input - key to fix
516 * output - the same key, fixed
517 * side effects - anything below ascii 13 is discarded, ':' discarded,
518 * high ascii is dropped to lower half of ascii table
519 */
520 static char *
521 fix_key(char *arg)
522 {
523 u_char *s, *t, c;
524
525 for(s = t = (u_char *) arg; (c = *s); s++)
526 {
527 c &= 0x7f;
528 if(c != ':' && c != ',' && c > ' ')
529 *t++ = c;
530 }
531
532 *t = '\0';
533 return arg;
534 }
535
536 /* fix_key_remote()
537 *
538 * input - key to fix
539 * ouput - the same key, fixed
540 * side effects - high ascii dropped to lower half of table,
541 * CR/LF/':' are dropped
542 */
543 static char *
544 fix_key_remote(char *arg)
545 {
546 u_char *s, *t, c;
547
548 for(s = t = (u_char *) arg; (c = *s); s++)
549 {
550 c &= 0x7f;
551 if((c != 0x0a) && (c != ':') && (c != ',') && (c != 0x0d) && (c != ' '))
552 *t++ = c;
553 }
554
555 *t = '\0';
556 return arg;
557 }
558
559 /* chm_*()
560 *
561 * The handlers for each specific mode.
562 */
563 void
564 chm_nosuch(struct Client *source_p, struct Channel *chptr,
565 int alevel, int parc, int *parn,
566 const char **parv, int *errors, int dir, char c, long mode_type)
567 {
568 if(*errors & SM_ERR_UNKNOWN)
569 return;
570 *errors |= SM_ERR_UNKNOWN;
571 sendto_one(source_p, form_str(ERR_UNKNOWNMODE), me.name, source_p->name, c);
572 }
573
574 void
575 chm_simple(struct Client *source_p, struct Channel *chptr,
576 int alevel, int parc, int *parn,
577 const char **parv, int *errors, int dir, char c, long mode_type)
578 {
579 if(alevel != CHFL_CHANOP)
580 {
581 if(!(*errors & SM_ERR_NOOPS))
582 sendto_one(source_p, form_str(ERR_CHANOPRIVSNEEDED),
583 me.name, source_p->name, chptr->chname);
584 *errors |= SM_ERR_NOOPS;
585 return;
586 }
587
588 if(MyClient(source_p) && (++mode_limit_simple > MAXMODES_SIMPLE))
589 return;
590
591 /* setting + */
592 if((dir == MODE_ADD) && !(chptr->mode.mode & mode_type))
593 {
594 /* if +f is disabled, ignore an attempt to set +QF locally */
595 if(!ConfigChannel.use_forward && MyClient(source_p) &&
596 (c == 'Q' || c == 'F'))
597 return;
598
599 chptr->mode.mode |= mode_type;
600
601 mode_changes[mode_count].letter = c;
602 mode_changes[mode_count].dir = MODE_ADD;
603 mode_changes[mode_count].caps = 0;
604 mode_changes[mode_count].nocaps = 0;
605 mode_changes[mode_count].id = NULL;
606 mode_changes[mode_count].mems = ALL_MEMBERS;
607 mode_changes[mode_count++].arg = NULL;
608 }
609 else if((dir == MODE_DEL) && (chptr->mode.mode & mode_type))
610 {
611 chptr->mode.mode &= ~mode_type;
612
613 mode_changes[mode_count].letter = c;
614 mode_changes[mode_count].dir = MODE_DEL;
615 mode_changes[mode_count].caps = 0;
616 mode_changes[mode_count].nocaps = 0;
617 mode_changes[mode_count].mems = ALL_MEMBERS;
618 mode_changes[mode_count].id = NULL;
619 mode_changes[mode_count++].arg = NULL;
620 }
621 }
622
623 void
624 chm_orphaned(struct Client *source_p, struct Channel *chptr,
625 int alevel, int parc, int *parn,
626 const char **parv, int *errors, int dir, char c, long mode_type)
627 {
628 if(MyClient(source_p))
629 return;
630
631 if((dir == MODE_ADD) && !(chptr->mode.mode & mode_type))
632 {
633 chptr->mode.mode |= mode_type;
634
635 mode_changes[mode_count].letter = c;
636 mode_changes[mode_count].dir = MODE_ADD;
637 mode_changes[mode_count].caps = 0;
638 mode_changes[mode_count].nocaps = 0;
639 mode_changes[mode_count].id = NULL;
640 mode_changes[mode_count].mems = ALL_MEMBERS;
641 mode_changes[mode_count++].arg = NULL;
642 }
643 else if((dir == MODE_DEL) && (chptr->mode.mode & mode_type))
644 {
645 chptr->mode.mode &= ~mode_type;
646
647 mode_changes[mode_count].letter = c;
648 mode_changes[mode_count].dir = MODE_DEL;
649 mode_changes[mode_count].caps = 0;
650 mode_changes[mode_count].nocaps = 0;
651 mode_changes[mode_count].mems = ALL_MEMBERS;
652 mode_changes[mode_count].id = NULL;
653 mode_changes[mode_count++].arg = NULL;
654 }
655 }
656
657 void
658 chm_staff(struct Client *source_p, struct Channel *chptr,
659 int alevel, int parc, int *parn,
660 const char **parv, int *errors, int dir, char c, long mode_type)
661 {
662 if(!IsOper(source_p) && !IsServer(source_p))
663 {
664 if(!(*errors & SM_ERR_NOPRIVS))
665 sendto_one_numeric(source_p, ERR_NOPRIVILEGES, form_str(ERR_NOPRIVILEGES));
666 *errors |= SM_ERR_NOPRIVS;
667 return;
668 }
669 if(MyClient(source_p) && !IsOperResv(source_p))
670 {
671 if(!(*errors & SM_ERR_NOPRIVS))
672 sendto_one(source_p, form_str(ERR_NOPRIVS), me.name,
673 source_p->name, "resv");
674 *errors |= SM_ERR_NOPRIVS;
675 return;
676 }
677
678 if(MyClient(source_p) && (++mode_limit_simple > MAXMODES_SIMPLE))
679 return;
680
681 /* setting + */
682 if((dir == MODE_ADD) && !(chptr->mode.mode & mode_type))
683 {
684 chptr->mode.mode |= mode_type;
685
686 mode_changes[mode_count].letter = c;
687 mode_changes[mode_count].dir = MODE_ADD;
688 mode_changes[mode_count].caps = 0;
689 mode_changes[mode_count].nocaps = 0;
690 mode_changes[mode_count].id = NULL;
691 mode_changes[mode_count].mems = ALL_MEMBERS;
692 mode_changes[mode_count++].arg = NULL;
693 }
694 else if((dir == MODE_DEL) && (chptr->mode.mode & mode_type))
695 {
696 chptr->mode.mode &= ~mode_type;
697
698 mode_changes[mode_count].letter = c;
699 mode_changes[mode_count].dir = MODE_DEL;
700 mode_changes[mode_count].caps = 0;
701 mode_changes[mode_count].nocaps = 0;
702 mode_changes[mode_count].mems = ALL_MEMBERS;
703 mode_changes[mode_count].id = NULL;
704 mode_changes[mode_count++].arg = NULL;
705 }
706 }
707
708 void
709 chm_ban(struct Client *source_p, struct Channel *chptr,
710 int alevel, int parc, int *parn,
711 const char **parv, int *errors, int dir, char c, long mode_type)
712 {
713 char *mask, *raw_mask, *forward;
714 rb_dlink_list *list;
715 rb_dlink_node *ptr;
716 struct Ban *banptr;
717 int errorval;
718 int rpl_list;
719 int rpl_endlist;
720 int caps;
721 int mems;
722
723 switch (mode_type)
724 {
725 case CHFL_BAN:
726 list = &chptr->banlist;
727 errorval = SM_ERR_RPL_B;
728 rpl_list = RPL_BANLIST;
729 rpl_endlist = RPL_ENDOFBANLIST;
730 mems = ALL_MEMBERS;
731 caps = 0;
732 break;
733
734 case CHFL_EXCEPTION:
735 /* if +e is disabled, allow all but +e locally */
736 if(!ConfigChannel.use_except && MyClient(source_p) &&
737 ((dir == MODE_ADD) && (parc > *parn)))
738 return;
739
740 list = &chptr->exceptlist;
741 errorval = SM_ERR_RPL_E;
742 rpl_list = RPL_EXCEPTLIST;
743 rpl_endlist = RPL_ENDOFEXCEPTLIST;
744 caps = CAP_EX;
745
746 if(ConfigChannel.use_except || (dir == MODE_DEL))
747 mems = ONLY_CHANOPS;
748 else
749 mems = ONLY_SERVERS;
750 break;
751
752 case CHFL_INVEX:
753 /* if +I is disabled, allow all but +I locally */
754 if(!ConfigChannel.use_invex && MyClient(source_p) &&
755 (dir == MODE_ADD) && (parc > *parn))
756 return;
757
758 list = &chptr->invexlist;
759 errorval = SM_ERR_RPL_I;
760 rpl_list = RPL_INVITELIST;
761 rpl_endlist = RPL_ENDOFINVITELIST;
762 caps = CAP_IE;
763
764 if(ConfigChannel.use_invex || (dir == MODE_DEL))
765 mems = ONLY_CHANOPS;
766 else
767 mems = ONLY_SERVERS;
768 break;
769
770 case CHFL_QUIET:
771 list = &chptr->quietlist;
772 errorval = SM_ERR_RPL_Q;
773 rpl_list = RPL_QUIETLIST;
774 rpl_endlist = RPL_ENDOFQUIETLIST;
775 mems = ALL_MEMBERS;
776 caps = 0;
777 break;
778
779 default:
780 sendto_realops_snomask(SNO_GENERAL, L_ALL, "chm_ban() called with unknown type!");
781 return;
782 break;
783 }
784
785 if(dir == 0 || parc <= *parn)
786 {
787 if((*errors & errorval) != 0)
788 return;
789 *errors |= errorval;
790
791 /* non-ops cant see +eI lists.. */
792 if(alevel != CHFL_CHANOP && mode_type != CHFL_BAN &&
793 mode_type != CHFL_QUIET)
794 {
795 if(!(*errors & SM_ERR_NOOPS))
796 sendto_one(source_p, form_str(ERR_CHANOPRIVSNEEDED),
797 me.name, source_p->name, chptr->chname);
798 *errors |= SM_ERR_NOOPS;
799 return;
800 }
801
802 RB_DLINK_FOREACH(ptr, list->head)
803 {
804 char buf[BANLEN];
805 banptr = ptr->data;
806 if(banptr->forward)
807 rb_snprintf(buf, sizeof(buf), "%s$%s", banptr->banstr, banptr->forward);
808 else
809 rb_strlcpy(buf, banptr->banstr, sizeof(buf));
810
811 sendto_one(source_p, form_str(rpl_list),
812 me.name, source_p->name, chptr->chname,
813 buf, banptr->who, banptr->when);
814 }
815 sendto_one(source_p, form_str(rpl_endlist), me.name, source_p->name, chptr->chname);
816 return;
817 }
818
819 if(alevel != CHFL_CHANOP)
820 {
821 if(!(*errors & SM_ERR_NOOPS))
822 sendto_one(source_p, form_str(ERR_CHANOPRIVSNEEDED),
823 me.name, source_p->name, chptr->chname);
824 *errors |= SM_ERR_NOOPS;
825 return;
826 }
827
828 if(MyClient(source_p) && (++mode_limit > MAXMODEPARAMS))
829 return;
830
831 raw_mask = parv[(*parn)];
832 (*parn)++;
833
834 /* empty ban, or starts with ':' which messes up s2s, ignore it */
835 if(EmptyString(raw_mask) || *raw_mask == ':')
836 return;
837
838 if(!MyClient(source_p))
839 {
840 if(strchr(raw_mask, ' '))
841 return;
842
843 mask = raw_mask;
844 }
845 else
846 mask = pretty_mask(raw_mask);
847
848 /* we'd have problems parsing this, hyb6 does it too
849 * also make sure it will always fit on a line with channel
850 * name etc.
851 */
852 if(strlen(mask) > IRCD_MIN(BANLEN, MODEBUFLEN - 5))
853 {
854 sendto_one_numeric(source_p, ERR_INVALIDBAN,
855 form_str(ERR_INVALIDBAN),
856 chptr->chname, c, raw_mask);
857 return;
858 }
859
860 /* Look for a $ after the first character.
861 * As the first character, it marks an extban; afterwards
862 * it delimits a forward channel.
863 */
864 if ((forward = strchr(mask+1, '$')) != NULL)
865 {
866 *forward++ = '\0';
867 if (*forward == '\0')
868 forward = NULL;
869 }
870
871 /* if we're adding a NEW id */
872 if(dir == MODE_ADD)
873 {
874 if (*mask == '$' && MyClient(source_p))
875 {
876 if (!valid_extban(mask, source_p, chptr, mode_type))
877 {
878 sendto_one_numeric(source_p, ERR_INVALIDBAN,
879 form_str(ERR_INVALIDBAN),
880 chptr->chname, c, raw_mask);
881 return;
882 }
883 }
884
885 /* For compatibility, only check the forward channel from
886 * local clients. Accept any forward channel from servers.
887 */
888 if(forward != NULL && MyClient(source_p))
889 {
890 /* For simplicity and future flexibility, do not
891 * allow '$' in forwarding targets.
892 */
893 if(!ConfigChannel.use_forward ||
894 strchr(forward, '$') != NULL)
895 {
896 sendto_one_numeric(source_p, ERR_INVALIDBAN,
897 form_str(ERR_INVALIDBAN),
898 chptr->chname, c, raw_mask);
899 return;
900 }
901 /* check_forward() sends its own error message */
902 if(!check_forward(source_p, chptr, forward))
903 return;
904 /* Forwards only make sense for bans. */
905 if(mode_type != CHFL_BAN)
906 {
907 sendto_one_numeric(source_p, ERR_INVALIDBAN,
908 form_str(ERR_INVALIDBAN),
909 chptr->chname, c, raw_mask);
910 return;
911 }
912 }
913
914 /* dont allow local clients to overflow the banlist, dont
915 * let remote servers set duplicate bans
916 */
917 if(!add_id(source_p, chptr, mask, forward, list, mode_type))
918 return;
919
920 if(forward)
921 forward[-1]= '$';
922
923 mode_changes[mode_count].letter = c;
924 mode_changes[mode_count].dir = MODE_ADD;
925 mode_changes[mode_count].caps = caps;
926 mode_changes[mode_count].nocaps = 0;
927 mode_changes[mode_count].mems = mems;
928 mode_changes[mode_count].id = NULL;
929 mode_changes[mode_count++].arg = mask;
930 }
931 else if(dir == MODE_DEL)
932 {
933 struct Ban *removed;
934 static char buf[BANLEN * MAXMODEPARAMS];
935 int old_removed_mask_pos = removed_mask_pos;
936 if((removed = del_id(chptr, mask, list, mode_type)) == NULL)
937 {
938 /* mask isn't a valid ban, check raw_mask */
939 if((removed = del_id(chptr, raw_mask, list, mode_type)) != NULL)
940 mask = raw_mask;
941 }
942
943 if(removed && removed->forward)
944 removed_mask_pos += rb_snprintf(buf, sizeof(buf), "%s$%s", removed->banstr, removed->forward);
945 else
946 removed_mask_pos += rb_strlcpy(buf, mask, sizeof(buf));
947 if(removed)
948 {
949 free_ban(removed);
950 removed = NULL;
951 }
952
953 mode_changes[mode_count].letter = c;
954 mode_changes[mode_count].dir = MODE_DEL;
955 mode_changes[mode_count].caps = caps;
956 mode_changes[mode_count].nocaps = 0;
957 mode_changes[mode_count].mems = mems;
958 mode_changes[mode_count].id = NULL;
959 mode_changes[mode_count++].arg = buf + old_removed_mask_pos;
960 }
961 }
962
963 void
964 chm_op(struct Client *source_p, struct Channel *chptr,
965 int alevel, int parc, int *parn,
966 const char **parv, int *errors, int dir, char c, long mode_type)
967 {
968 struct membership *mstptr;
969 const char *opnick;
970 struct Client *targ_p;
971
972 if(alevel != CHFL_CHANOP)
973 {
974 if(!(*errors & SM_ERR_NOOPS))
975 sendto_one(source_p, form_str(ERR_CHANOPRIVSNEEDED),
976 me.name, source_p->name, chptr->chname);
977 *errors |= SM_ERR_NOOPS;
978 return;
979 }
980
981 if((dir == MODE_QUERY) || (parc <= *parn))
982 return;
983
984 opnick = parv[(*parn)];
985 (*parn)++;
986
987 /* empty nick */
988 if(EmptyString(opnick))
989 {
990 sendto_one_numeric(source_p, ERR_NOSUCHNICK, form_str(ERR_NOSUCHNICK), "*");
991 return;
992 }
993
994 if((targ_p = find_chasing(source_p, opnick, NULL)) == NULL)
995 {
996 return;
997 }
998
999 mstptr = find_channel_membership(chptr, targ_p);
1000
1001 if(mstptr == NULL)
1002 {
1003 if(!(*errors & SM_ERR_NOTONCHANNEL) && MyClient(source_p))
1004 sendto_one_numeric(source_p, ERR_USERNOTINCHANNEL,
1005 form_str(ERR_USERNOTINCHANNEL), opnick, chptr->chname);
1006 *errors |= SM_ERR_NOTONCHANNEL;
1007 return;
1008 }
1009
1010 if(MyClient(source_p) && (++mode_limit > MAXMODEPARAMS))
1011 return;
1012
1013 if(dir == MODE_ADD)
1014 {
1015 if(targ_p == source_p && mstptr->flags & CHFL_CHANOP)
1016 return;
1017
1018 mode_changes[mode_count].letter = c;
1019 mode_changes[mode_count].dir = MODE_ADD;
1020 mode_changes[mode_count].caps = 0;
1021 mode_changes[mode_count].nocaps = 0;
1022 mode_changes[mode_count].mems = ALL_MEMBERS;
1023 mode_changes[mode_count].id = targ_p->id;
1024 mode_changes[mode_count].arg = targ_p->name;
1025 mode_changes[mode_count++].client = targ_p;
1026
1027 mstptr->flags |= CHFL_CHANOP;
1028 }
1029 else
1030 {
1031 if(MyClient(source_p) && IsService(targ_p))
1032 {
1033 sendto_one(source_p, form_str(ERR_ISCHANSERVICE),
1034 me.name, source_p->name, targ_p->name, chptr->chname);
1035 return;
1036 }
1037
1038 mode_changes[mode_count].letter = c;
1039 mode_changes[mode_count].dir = MODE_DEL;
1040 mode_changes[mode_count].caps = 0;
1041 mode_changes[mode_count].nocaps = 0;
1042 mode_changes[mode_count].mems = ALL_MEMBERS;
1043 mode_changes[mode_count].id = targ_p->id;
1044 mode_changes[mode_count].arg = targ_p->name;
1045 mode_changes[mode_count++].client = targ_p;
1046
1047 mstptr->flags &= ~CHFL_CHANOP;
1048 }
1049 }
1050
1051 void
1052 chm_voice(struct Client *source_p, struct Channel *chptr,
1053 int alevel, int parc, int *parn,
1054 const char **parv, int *errors, int dir, char c, long mode_type)
1055 {
1056 struct membership *mstptr;
1057 const char *opnick;
1058 struct Client *targ_p;
1059
1060 if(alevel != CHFL_CHANOP)
1061 {
1062 if(!(*errors & SM_ERR_NOOPS))
1063 sendto_one(source_p, form_str(ERR_CHANOPRIVSNEEDED),
1064 me.name, source_p->name, chptr->chname);
1065 *errors |= SM_ERR_NOOPS;
1066 return;
1067 }
1068
1069 if((dir == MODE_QUERY) || parc <= *parn)
1070 return;
1071
1072 opnick = parv[(*parn)];
1073 (*parn)++;
1074
1075 /* empty nick */
1076 if(EmptyString(opnick))
1077 {
1078 sendto_one_numeric(source_p, ERR_NOSUCHNICK, form_str(ERR_NOSUCHNICK), "*");
1079 return;
1080 }
1081
1082 if((targ_p = find_chasing(source_p, opnick, NULL)) == NULL)
1083 {
1084 return;
1085 }
1086
1087 mstptr = find_channel_membership(chptr, targ_p);
1088
1089 if(mstptr == NULL)
1090 {
1091 if(!(*errors & SM_ERR_NOTONCHANNEL) && MyClient(source_p))
1092 sendto_one_numeric(source_p, ERR_USERNOTINCHANNEL,
1093 form_str(ERR_USERNOTINCHANNEL), opnick, chptr->chname);
1094 *errors |= SM_ERR_NOTONCHANNEL;
1095 return;
1096 }
1097
1098 if(MyClient(source_p) && (++mode_limit > MAXMODEPARAMS))
1099 return;
1100
1101 if(dir == MODE_ADD)
1102 {
1103 mode_changes[mode_count].letter = c;
1104 mode_changes[mode_count].dir = MODE_ADD;
1105 mode_changes[mode_count].caps = 0;
1106 mode_changes[mode_count].nocaps = 0;
1107 mode_changes[mode_count].mems = ALL_MEMBERS;
1108 mode_changes[mode_count].id = targ_p->id;
1109 mode_changes[mode_count].arg = targ_p->name;
1110 mode_changes[mode_count++].client = targ_p;
1111
1112 mstptr->flags |= CHFL_VOICE;
1113 }
1114 else
1115 {
1116 mode_changes[mode_count].letter = 'v';
1117 mode_changes[mode_count].dir = MODE_DEL;
1118 mode_changes[mode_count].caps = 0;
1119 mode_changes[mode_count].nocaps = 0;
1120 mode_changes[mode_count].mems = ALL_MEMBERS;
1121 mode_changes[mode_count].id = targ_p->id;
1122 mode_changes[mode_count].arg = targ_p->name;
1123 mode_changes[mode_count++].client = targ_p;
1124
1125 mstptr->flags &= ~CHFL_VOICE;
1126 }
1127 }
1128
1129 void
1130 chm_limit(struct Client *source_p, struct Channel *chptr,
1131 int alevel, int parc, int *parn,
1132 const char **parv, int *errors, int dir, char c, long mode_type)
1133 {
1134 const char *lstr;
1135 static char limitstr[30];
1136 int limit;
1137
1138 if(alevel != CHFL_CHANOP)
1139 {
1140 if(!(*errors & SM_ERR_NOOPS))
1141 sendto_one(source_p, form_str(ERR_CHANOPRIVSNEEDED),
1142 me.name, source_p->name, chptr->chname);
1143 *errors |= SM_ERR_NOOPS;
1144 return;
1145 }
1146
1147 if(dir == MODE_QUERY)
1148 return;
1149
1150 if(MyClient(source_p) && (++mode_limit_simple > MAXMODES_SIMPLE))
1151 return;
1152
1153 if((dir == MODE_ADD) && parc > *parn)
1154 {
1155 lstr = parv[(*parn)];
1156 (*parn)++;
1157
1158 if(EmptyString(lstr) || (limit = atoi(lstr)) <= 0)
1159 return;
1160
1161 rb_sprintf(limitstr, "%d", limit);
1162
1163 mode_changes[mode_count].letter = c;
1164 mode_changes[mode_count].dir = MODE_ADD;
1165 mode_changes[mode_count].caps = 0;
1166 mode_changes[mode_count].nocaps = 0;
1167 mode_changes[mode_count].mems = ALL_MEMBERS;
1168 mode_changes[mode_count].id = NULL;
1169 mode_changes[mode_count++].arg = limitstr;
1170
1171 chptr->mode.limit = limit;
1172 }
1173 else if(dir == MODE_DEL)
1174 {
1175 if(!chptr->mode.limit)
1176 return;
1177
1178 chptr->mode.limit = 0;
1179
1180 mode_changes[mode_count].letter = c;
1181 mode_changes[mode_count].dir = MODE_DEL;
1182 mode_changes[mode_count].caps = 0;
1183 mode_changes[mode_count].nocaps = 0;
1184 mode_changes[mode_count].mems = ALL_MEMBERS;
1185 mode_changes[mode_count].id = NULL;
1186 mode_changes[mode_count++].arg = NULL;
1187 }
1188 }
1189
1190 void
1191 chm_throttle(struct Client *source_p, struct Channel *chptr,
1192 int alevel, int parc, int *parn,
1193 const char **parv, int *errors, int dir, char c, long mode_type)
1194 {
1195 int joins = 0, timeslice = 0;
1196
1197 if(alevel != CHFL_CHANOP)
1198 {
1199 if(!(*errors & SM_ERR_NOOPS))
1200 sendto_one(source_p, form_str(ERR_CHANOPRIVSNEEDED),
1201 me.name, source_p->name, chptr->chname);
1202 *errors |= SM_ERR_NOOPS;
1203 return;
1204 }
1205
1206 if(dir == MODE_QUERY)
1207 return;
1208
1209 if(MyClient(source_p) && (++mode_limit_simple > MAXMODES_SIMPLE))
1210 return;
1211
1212 if((dir == MODE_ADD) && parc > *parn)
1213 {
1214 sscanf(parv[(*parn)], "%d:%d", &joins, &timeslice);
1215
1216 if(!joins || !timeslice)
1217 return;
1218
1219 mode_changes[mode_count].letter = c;
1220 mode_changes[mode_count].dir = MODE_ADD;
1221 mode_changes[mode_count].caps = 0;
1222 mode_changes[mode_count].nocaps = 0;
1223 mode_changes[mode_count].mems = ALL_MEMBERS;
1224 mode_changes[mode_count].id = NULL;
1225 mode_changes[mode_count++].arg = parv[(*parn)];
1226
1227 (*parn)++;
1228
1229 chptr->mode.join_num = joins;
1230 chptr->mode.join_time = timeslice;
1231 }
1232 else if(dir == MODE_DEL)
1233 {
1234 if(!chptr->mode.join_num)
1235 return;
1236
1237 chptr->mode.join_num = 0;
1238 chptr->mode.join_time = 0;
1239 chptr->join_count = 0;
1240 chptr->join_delta = 0;
1241
1242 mode_changes[mode_count].letter = c;
1243 mode_changes[mode_count].dir = MODE_DEL;
1244 mode_changes[mode_count].caps = 0;
1245 mode_changes[mode_count].nocaps = 0;
1246 mode_changes[mode_count].mems = ALL_MEMBERS;
1247 mode_changes[mode_count].id = NULL;
1248 mode_changes[mode_count++].arg = NULL;
1249 }
1250 }
1251
1252 void
1253 chm_forward(struct Client *source_p, struct Channel *chptr,
1254 int alevel, int parc, int *parn,
1255 const char **parv, int *errors, int dir, char c, long mode_type)
1256 {
1257 const char *forward;
1258
1259 /* if +f is disabled, ignore local attempts to set it */
1260 if(!ConfigChannel.use_forward && MyClient(source_p) &&
1261 (dir == MODE_ADD) && (parc > *parn))
1262 return;
1263
1264 if(dir == MODE_QUERY || (dir == MODE_ADD && parc <= *parn))
1265 {
1266 if (!(*errors & SM_ERR_RPL_F))
1267 {
1268 if (*chptr->mode.forward == '\0')
1269 sendto_one_notice(source_p, ":%s has no forward channel", chptr->chname);
1270 else
1271 sendto_one_notice(source_p, ":%s forward channel is %s", chptr->chname, chptr->mode.forward);
1272 *errors |= SM_ERR_RPL_F;
1273 }
1274 return;
1275 }
1276
1277 #ifndef FORWARD_OPERONLY
1278 if(alevel != CHFL_CHANOP)
1279 {
1280 if(!(*errors & SM_ERR_NOOPS))
1281 sendto_one(source_p, form_str(ERR_CHANOPRIVSNEEDED),
1282 me.name, source_p->name, chptr->chname);
1283 *errors |= SM_ERR_NOOPS;
1284 return;
1285 }
1286 #else
1287 if(!IsOper(source_p) && !IsServer(source_p))
1288 {
1289 if(!(*errors & SM_ERR_NOPRIVS))
1290 sendto_one_numeric(source_p, ERR_NOPRIVILEGES, form_str(ERR_NOPRIVILEGES));
1291 *errors |= SM_ERR_NOPRIVS;
1292 return;
1293 }
1294 #endif
1295
1296 if(MyClient(source_p) && (++mode_limit_simple > MAXMODES_SIMPLE))
1297 return;
1298
1299 if(dir == MODE_ADD && parc > *parn)
1300 {
1301 forward = parv[(*parn)];
1302 (*parn)++;
1303
1304 if(EmptyString(forward))
1305 return;
1306
1307 if(!check_forward(source_p, chptr, forward))
1308 return;
1309
1310 rb_strlcpy(chptr->mode.forward, forward, sizeof(chptr->mode.forward));
1311
1312 mode_changes[mode_count].letter = c;
1313 mode_changes[mode_count].dir = MODE_ADD;
1314 mode_changes[mode_count].caps = 0;
1315 mode_changes[mode_count].nocaps = 0;
1316 mode_changes[mode_count].mems =
1317 ConfigChannel.use_forward ? ALL_MEMBERS : ONLY_SERVERS;
1318 mode_changes[mode_count].id = NULL;
1319 mode_changes[mode_count++].arg = forward;
1320 }
1321 else if(dir == MODE_DEL)
1322 {
1323 if(!(*chptr->mode.forward))
1324 return;
1325
1326 *chptr->mode.forward = '\0';
1327
1328 mode_changes[mode_count].letter = c;
1329 mode_changes[mode_count].dir = MODE_DEL;
1330 mode_changes[mode_count].caps = 0;
1331 mode_changes[mode_count].nocaps = 0;
1332 mode_changes[mode_count].mems = ALL_MEMBERS;
1333 mode_changes[mode_count].id = NULL;
1334 mode_changes[mode_count++].arg = NULL;
1335 }
1336 }
1337
1338 void
1339 chm_key(struct Client *source_p, struct Channel *chptr,
1340 int alevel, int parc, int *parn,
1341 const char **parv, int *errors, int dir, char c, long mode_type)
1342 {
1343 char *key;
1344
1345 if(alevel != CHFL_CHANOP)
1346 {
1347 if(!(*errors & SM_ERR_NOOPS))
1348 sendto_one(source_p, form_str(ERR_CHANOPRIVSNEEDED),
1349 me.name, source_p->name, chptr->chname);
1350 *errors |= SM_ERR_NOOPS;
1351 return;
1352 }
1353
1354 if(dir == MODE_QUERY)
1355 return;
1356
1357 if(MyClient(source_p) && (++mode_limit_simple > MAXMODES_SIMPLE))
1358 return;
1359
1360 if((dir == MODE_ADD) && parc > *parn)
1361 {
1362 key = LOCAL_COPY(parv[(*parn)]);
1363 (*parn)++;
1364
1365 if(MyClient(source_p))
1366 fix_key(key);
1367 else
1368 fix_key_remote(key);
1369
1370 if(EmptyString(key))
1371 return;
1372
1373 s_assert(key[0] != ' ');
1374 rb_strlcpy(chptr->mode.key, key, sizeof(chptr->mode.key));
1375
1376 mode_changes[mode_count].letter = c;
1377 mode_changes[mode_count].dir = MODE_ADD;
1378 mode_changes[mode_count].caps = 0;
1379 mode_changes[mode_count].nocaps = 0;
1380 mode_changes[mode_count].mems = ALL_MEMBERS;
1381 mode_changes[mode_count].id = NULL;
1382 mode_changes[mode_count++].arg = chptr->mode.key;
1383 }
1384 else if(dir == MODE_DEL)
1385 {
1386 static char splat[] = "*";
1387 int i;
1388
1389 if(parc > *parn)
1390 (*parn)++;
1391
1392 if(!(*chptr->mode.key))
1393 return;
1394
1395 /* hack time. when we get a +k-k mode, the +k arg is
1396 * chptr->mode.key, which the -k sets to \0, so hunt for a
1397 * +k when we get a -k, and set the arg to splat. --anfl
1398 */
1399 for(i = 0; i < mode_count; i++)
1400 {
1401 if(mode_changes[i].letter == 'k' && mode_changes[i].dir == MODE_ADD)
1402 mode_changes[i].arg = splat;
1403 }
1404
1405 *chptr->mode.key = 0;
1406
1407 mode_changes[mode_count].letter = c;
1408 mode_changes[mode_count].dir = MODE_DEL;
1409 mode_changes[mode_count].caps = 0;
1410 mode_changes[mode_count].nocaps = 0;
1411 mode_changes[mode_count].mems = ALL_MEMBERS;
1412 mode_changes[mode_count].id = NULL;
1413 mode_changes[mode_count++].arg = "*";
1414 }
1415 }
1416
1417 /* *INDENT-OFF* */
1418 struct ChannelMode chmode_table[256] =
1419 {
1420 {chm_nosuch, 0 }, /* 0x00 */
1421 {chm_nosuch, 0 }, /* 0x01 */
1422 {chm_nosuch, 0 }, /* 0x02 */
1423 {chm_nosuch, 0 }, /* 0x03 */
1424 {chm_nosuch, 0 }, /* 0x04 */
1425 {chm_nosuch, 0 }, /* 0x05 */
1426 {chm_nosuch, 0 }, /* 0x06 */
1427 {chm_nosuch, 0 }, /* 0x07 */
1428 {chm_nosuch, 0 }, /* 0x08 */
1429 {chm_nosuch, 0 }, /* 0x09 */
1430 {chm_nosuch, 0 }, /* 0x0a */
1431 {chm_nosuch, 0 }, /* 0x0b */
1432 {chm_nosuch, 0 }, /* 0x0c */
1433 {chm_nosuch, 0 }, /* 0x0d */
1434 {chm_nosuch, 0 }, /* 0x0e */
1435 {chm_nosuch, 0 }, /* 0x0f */
1436 {chm_nosuch, 0 }, /* 0x10 */
1437 {chm_nosuch, 0 }, /* 0x11 */
1438 {chm_nosuch, 0 }, /* 0x12 */
1439 {chm_nosuch, 0 }, /* 0x13 */
1440 {chm_nosuch, 0 }, /* 0x14 */
1441 {chm_nosuch, 0 }, /* 0x15 */
1442 {chm_nosuch, 0 }, /* 0x16 */
1443 {chm_nosuch, 0 }, /* 0x17 */
1444 {chm_nosuch, 0 }, /* 0x18 */
1445 {chm_nosuch, 0 }, /* 0x19 */
1446 {chm_nosuch, 0 }, /* 0x1a */
1447 {chm_nosuch, 0 }, /* 0x1b */
1448 {chm_nosuch, 0 }, /* 0x1c */
1449 {chm_nosuch, 0 }, /* 0x1d */
1450 {chm_nosuch, 0 }, /* 0x1e */
1451 {chm_nosuch, 0 }, /* 0x1f */
1452 {chm_nosuch, 0 }, /* 0x20 */
1453 {chm_nosuch, 0 }, /* 0x21 */
1454 {chm_nosuch, 0 }, /* 0x22 */
1455 {chm_nosuch, 0 }, /* 0x23 */
1456 {chm_nosuch, 0 }, /* 0x24 */
1457 {chm_nosuch, 0 }, /* 0x25 */
1458 {chm_nosuch, 0 }, /* 0x26 */
1459 {chm_nosuch, 0 }, /* 0x27 */
1460 {chm_nosuch, 0 }, /* 0x28 */
1461 {chm_nosuch, 0 }, /* 0x29 */
1462 {chm_nosuch, 0 }, /* 0x2a */
1463 {chm_nosuch, 0 }, /* 0x2b */
1464 {chm_nosuch, 0 }, /* 0x2c */
1465 {chm_nosuch, 0 }, /* 0x2d */
1466 {chm_nosuch, 0 }, /* 0x2e */
1467 {chm_nosuch, 0 }, /* 0x2f */
1468 {chm_nosuch, 0 }, /* 0x30 */
1469 {chm_nosuch, 0 }, /* 0x31 */
1470 {chm_nosuch, 0 }, /* 0x32 */
1471 {chm_nosuch, 0 }, /* 0x33 */
1472 {chm_nosuch, 0 }, /* 0x34 */
1473 {chm_nosuch, 0 }, /* 0x35 */
1474 {chm_nosuch, 0 }, /* 0x36 */
1475 {chm_nosuch, 0 }, /* 0x37 */
1476 {chm_nosuch, 0 }, /* 0x38 */
1477 {chm_nosuch, 0 }, /* 0x39 */
1478 {chm_nosuch, 0 }, /* 0x3a */
1479 {chm_nosuch, 0 }, /* 0x3b */
1480 {chm_nosuch, 0 }, /* 0x3c */
1481 {chm_nosuch, 0 }, /* 0x3d */
1482 {chm_nosuch, 0 }, /* 0x3e */
1483 {chm_nosuch, 0 }, /* 0x3f */
1484
1485 {chm_nosuch, 0 }, /* @ */
1486 {chm_nosuch, 0 }, /* A */
1487 {chm_nosuch, 0 }, /* B */
1488 {chm_simple, MODE_NOCTCP }, /* C */
1489 {chm_nosuch, 0 }, /* D */
1490 {chm_nosuch, 0 }, /* E */
1491 {chm_simple, MODE_FREETARGET }, /* F */
1492 {chm_nosuch, 0 }, /* G */
1493 {chm_nosuch, 0 }, /* H */
1494 {chm_ban, CHFL_INVEX }, /* I */
1495 {chm_nosuch, 0 }, /* J */
1496 {chm_nosuch, 0 }, /* K */
1497 {chm_staff, MODE_EXLIMIT }, /* L */
1498 {chm_nosuch, 0 }, /* M */
1499 {chm_nosuch, 0 }, /* N */
1500 {chm_nosuch, 0 }, /* O */
1501 {chm_staff, MODE_PERMANENT }, /* P */
1502 {chm_simple, MODE_DISFORWARD }, /* Q */
1503 {chm_nosuch, 0 }, /* R */
1504 {chm_nosuch, 0 }, /* S */
1505 {chm_nosuch, 0 }, /* T */
1506 {chm_nosuch, 0 }, /* U */
1507 {chm_nosuch, 0 }, /* V */
1508 {chm_nosuch, 0 }, /* W */
1509 {chm_nosuch, 0 }, /* X */
1510 {chm_nosuch, 0 }, /* Y */
1511 {chm_nosuch, 0 }, /* Z */
1512 {chm_nosuch, 0 },
1513 {chm_nosuch, 0 },
1514 {chm_nosuch, 0 },
1515 {chm_nosuch, 0 },
1516 {chm_nosuch, 0 },
1517 {chm_nosuch, 0 },
1518 {chm_nosuch, 0 }, /* a */
1519 {chm_ban, CHFL_BAN }, /* b */
1520 {chm_simple, MODE_NOCOLOR }, /* c */
1521 {chm_nosuch, 0 }, /* d */
1522 {chm_ban, CHFL_EXCEPTION }, /* e */
1523 {chm_forward, 0 }, /* f */
1524 {chm_simple, MODE_FREEINVITE }, /* g */
1525 {chm_nosuch, 0 }, /* h */
1526 {chm_simple, MODE_INVITEONLY }, /* i */
1527 {chm_throttle, 0 }, /* j */
1528 {chm_key, 0 }, /* k */
1529 {chm_limit, 0 }, /* l */
1530 {chm_simple, MODE_MODERATED }, /* m */
1531 {chm_simple, MODE_NOPRIVMSGS }, /* n */
1532 {chm_op, 0 }, /* o */
1533 {chm_simple, MODE_PRIVATE }, /* p */
1534 {chm_ban, CHFL_QUIET }, /* q */
1535 {chm_simple, MODE_REGONLY }, /* r */
1536 {chm_simple, MODE_SECRET }, /* s */
1537 {chm_simple, MODE_TOPICLIMIT }, /* t */
1538 {chm_nosuch, 0 }, /* u */
1539 {chm_voice, 0 }, /* v */
1540 {chm_nosuch, 0 }, /* w */
1541 {chm_nosuch, 0 }, /* x */
1542 {chm_nosuch, 0 }, /* y */
1543 {chm_simple, MODE_OPMODERATE }, /* z */
1544
1545 {chm_nosuch, 0 }, /* 0x7b */
1546 {chm_nosuch, 0 }, /* 0x7c */
1547 {chm_nosuch, 0 }, /* 0x7d */
1548 {chm_nosuch, 0 }, /* 0x7e */
1549 {chm_nosuch, 0 }, /* 0x7f */
1550
1551 {chm_nosuch, 0 }, /* 0x80 */
1552 {chm_nosuch, 0 }, /* 0x81 */
1553 {chm_nosuch, 0 }, /* 0x82 */
1554 {chm_nosuch, 0 }, /* 0x83 */
1555 {chm_nosuch, 0 }, /* 0x84 */
1556 {chm_nosuch, 0 }, /* 0x85 */
1557 {chm_nosuch, 0 }, /* 0x86 */
1558 {chm_nosuch, 0 }, /* 0x87 */
1559 {chm_nosuch, 0 }, /* 0x88 */
1560 {chm_nosuch, 0 }, /* 0x89 */
1561 {chm_nosuch, 0 }, /* 0x8a */
1562 {chm_nosuch, 0 }, /* 0x8b */
1563 {chm_nosuch, 0 }, /* 0x8c */
1564 {chm_nosuch, 0 }, /* 0x8d */
1565 {chm_nosuch, 0 }, /* 0x8e */
1566 {chm_nosuch, 0 }, /* 0x8f */
1567
1568 {chm_nosuch, 0 }, /* 0x90 */
1569 {chm_nosuch, 0 }, /* 0x91 */
1570 {chm_nosuch, 0 }, /* 0x92 */
1571 {chm_nosuch, 0 }, /* 0x93 */
1572 {chm_nosuch, 0 }, /* 0x94 */
1573 {chm_nosuch, 0 }, /* 0x95 */
1574 {chm_nosuch, 0 }, /* 0x96 */
1575 {chm_nosuch, 0 }, /* 0x97 */
1576 {chm_nosuch, 0 }, /* 0x98 */
1577 {chm_nosuch, 0 }, /* 0x99 */
1578 {chm_nosuch, 0 }, /* 0x9a */
1579 {chm_nosuch, 0 }, /* 0x9b */
1580 {chm_nosuch, 0 }, /* 0x9c */
1581 {chm_nosuch, 0 }, /* 0x9d */
1582 {chm_nosuch, 0 }, /* 0x9e */
1583 {chm_nosuch, 0 }, /* 0x9f */
1584
1585 {chm_nosuch, 0 }, /* 0xa0 */
1586 {chm_nosuch, 0 }, /* 0xa1 */
1587 {chm_nosuch, 0 }, /* 0xa2 */
1588 {chm_nosuch, 0 }, /* 0xa3 */
1589 {chm_nosuch, 0 }, /* 0xa4 */
1590 {chm_nosuch, 0 }, /* 0xa5 */
1591 {chm_nosuch, 0 }, /* 0xa6 */
1592 {chm_nosuch, 0 }, /* 0xa7 */
1593 {chm_nosuch, 0 }, /* 0xa8 */
1594 {chm_nosuch, 0 }, /* 0xa9 */
1595 {chm_nosuch, 0 }, /* 0xaa */
1596 {chm_nosuch, 0 }, /* 0xab */
1597 {chm_nosuch, 0 }, /* 0xac */
1598 {chm_nosuch, 0 }, /* 0xad */
1599 {chm_nosuch, 0 }, /* 0xae */
1600 {chm_nosuch, 0 }, /* 0xaf */
1601
1602 {chm_nosuch, 0 }, /* 0xb0 */
1603 {chm_nosuch, 0 }, /* 0xb1 */
1604 {chm_nosuch, 0 }, /* 0xb2 */
1605 {chm_nosuch, 0 }, /* 0xb3 */
1606 {chm_nosuch, 0 }, /* 0xb4 */
1607 {chm_nosuch, 0 }, /* 0xb5 */
1608 {chm_nosuch, 0 }, /* 0xb6 */
1609 {chm_nosuch, 0 }, /* 0xb7 */
1610 {chm_nosuch, 0 }, /* 0xb8 */
1611 {chm_nosuch, 0 }, /* 0xb9 */
1612 {chm_nosuch, 0 }, /* 0xba */
1613 {chm_nosuch, 0 }, /* 0xbb */
1614 {chm_nosuch, 0 }, /* 0xbc */
1615 {chm_nosuch, 0 }, /* 0xbd */
1616 {chm_nosuch, 0 }, /* 0xbe */
1617 {chm_nosuch, 0 }, /* 0xbf */
1618
1619 {chm_nosuch, 0 }, /* 0xc0 */
1620 {chm_nosuch, 0 }, /* 0xc1 */
1621 {chm_nosuch, 0 }, /* 0xc2 */
1622 {chm_nosuch, 0 }, /* 0xc3 */
1623 {chm_nosuch, 0 }, /* 0xc4 */
1624 {chm_nosuch, 0 }, /* 0xc5 */
1625 {chm_nosuch, 0 }, /* 0xc6 */
1626 {chm_nosuch, 0 }, /* 0xc7 */
1627 {chm_nosuch, 0 }, /* 0xc8 */
1628 {chm_nosuch, 0 }, /* 0xc9 */
1629 {chm_nosuch, 0 }, /* 0xca */
1630 {chm_nosuch, 0 }, /* 0xcb */
1631 {chm_nosuch, 0 }, /* 0xcc */
1632 {chm_nosuch, 0 }, /* 0xcd */
1633 {chm_nosuch, 0 }, /* 0xce */
1634 {chm_nosuch, 0 }, /* 0xcf */
1635
1636 {chm_nosuch, 0 }, /* 0xd0 */
1637 {chm_nosuch, 0 }, /* 0xd1 */
1638 {chm_nosuch, 0 }, /* 0xd2 */
1639 {chm_nosuch, 0 }, /* 0xd3 */
1640 {chm_nosuch, 0 }, /* 0xd4 */
1641 {chm_nosuch, 0 }, /* 0xd5 */
1642 {chm_nosuch, 0 }, /* 0xd6 */
1643 {chm_nosuch, 0 }, /* 0xd7 */
1644 {chm_nosuch, 0 }, /* 0xd8 */
1645 {chm_nosuch, 0 }, /* 0xd9 */
1646 {chm_nosuch, 0 }, /* 0xda */
1647 {chm_nosuch, 0 }, /* 0xdb */
1648 {chm_nosuch, 0 }, /* 0xdc */
1649 {chm_nosuch, 0 }, /* 0xdd */
1650 {chm_nosuch, 0 }, /* 0xde */
1651 {chm_nosuch, 0 }, /* 0xdf */
1652
1653 {chm_nosuch, 0 }, /* 0xe0 */
1654 {chm_nosuch, 0 }, /* 0xe1 */
1655 {chm_nosuch, 0 }, /* 0xe2 */
1656 {chm_nosuch, 0 }, /* 0xe3 */
1657 {chm_nosuch, 0 }, /* 0xe4 */
1658 {chm_nosuch, 0 }, /* 0xe5 */
1659 {chm_nosuch, 0 }, /* 0xe6 */
1660 {chm_nosuch, 0 }, /* 0xe7 */
1661 {chm_nosuch, 0 }, /* 0xe8 */
1662 {chm_nosuch, 0 }, /* 0xe9 */
1663 {chm_nosuch, 0 }, /* 0xea */
1664 {chm_nosuch, 0 }, /* 0xeb */
1665 {chm_nosuch, 0 }, /* 0xec */
1666 {chm_nosuch, 0 }, /* 0xed */
1667 {chm_nosuch, 0 }, /* 0xee */
1668 {chm_nosuch, 0 }, /* 0xef */
1669
1670 {chm_nosuch, 0 }, /* 0xf0 */
1671 {chm_nosuch, 0 }, /* 0xf1 */
1672 {chm_nosuch, 0 }, /* 0xf2 */
1673 {chm_nosuch, 0 }, /* 0xf3 */
1674 {chm_nosuch, 0 }, /* 0xf4 */
1675 {chm_nosuch, 0 }, /* 0xf5 */
1676 {chm_nosuch, 0 }, /* 0xf6 */
1677 {chm_nosuch, 0 }, /* 0xf7 */
1678 {chm_nosuch, 0 }, /* 0xf8 */
1679 {chm_nosuch, 0 }, /* 0xf9 */
1680 {chm_nosuch, 0 }, /* 0xfa */
1681 {chm_nosuch, 0 }, /* 0xfb */
1682 {chm_nosuch, 0 }, /* 0xfc */
1683 {chm_nosuch, 0 }, /* 0xfd */
1684 {chm_nosuch, 0 }, /* 0xfe */
1685 {chm_nosuch, 0 }, /* 0xff */
1686 };
1687
1688 /* *INDENT-ON* */
1689
1690 /* set_channel_mode()
1691 *
1692 * inputs - client, source, channel, membership pointer, params
1693 * output -
1694 * side effects - channel modes/memberships are changed, MODE is issued
1695 *
1696 * Extensively modified to be hotpluggable, 03/09/06 -- nenolod
1697 */
1698 void
1699 set_channel_mode(struct Client *client_p, struct Client *source_p,
1700 struct Channel *chptr, struct membership *msptr, int parc, const char *parv[])
1701 {
1702 static char modebuf[BUFSIZE];
1703 static char parabuf[BUFSIZE];
1704 char *mbuf;
1705 char *pbuf;
1706 int cur_len, mlen, paralen, paracount, arglen, len;
1707 int i, j, flags;
1708 int dir = MODE_ADD;
1709 int parn = 1;
1710 int errors = 0;
1711 int alevel;
1712 const char *ml = parv[0];
1713 char c;
1714 struct Client *fakesource_p;
1715
1716 mask_pos = 0;
1717 removed_mask_pos = 0;
1718 mode_count = 0;
1719 mode_limit = 0;
1720 mode_limit_simple = 0;
1721
1722 alevel = get_channel_access(source_p, msptr);
1723
1724 /* Hide connecting server on netburst -- jilles */
1725 if (ConfigServerHide.flatten_links && IsServer(source_p) && !has_id(source_p) && !HasSentEob(source_p))
1726 fakesource_p = &me;
1727 else
1728 fakesource_p = source_p;
1729
1730 for(; (c = *ml) != 0; ml++)
1731 {
1732 switch (c)
1733 {
1734 case '+':
1735 dir = MODE_ADD;
1736 break;
1737 case '-':
1738 dir = MODE_DEL;
1739 break;
1740 case '=':
1741 dir = MODE_QUERY;
1742 break;
1743 default:
1744 /* If this mode char is locked, don't allow local users to change it. */
1745 if (MyClient(source_p) && chptr->mode_lock && strchr(chptr->mode_lock, c))
1746 {
1747 if (!(errors & SM_ERR_MLOCK))
1748 sendto_one_numeric(source_p,
1749 ERR_MLOCKRESTRICTED,
1750 form_str(ERR_MLOCKRESTRICTED),
1751 chptr->chname,
1752 c,
1753 chptr->mode_lock);
1754 errors |= SM_ERR_MLOCK;
1755 continue;
1756 }
1757 chmode_table[(unsigned char) c].set_func(fakesource_p, chptr, alevel,
1758 parc, &parn, parv,
1759 &errors, dir, c,
1760 chmode_table[(unsigned char) c].mode_type);
1761 break;
1762 }
1763 }
1764
1765 /* bail out if we have nothing to do... */
1766 if(!mode_count)
1767 return;
1768
1769 if(IsServer(source_p))
1770 mlen = rb_sprintf(modebuf, ":%s MODE %s ", fakesource_p->name, chptr->chname);
1771 else
1772 mlen = rb_sprintf(modebuf, ":%s!%s@%s MODE %s ",
1773 source_p->name, source_p->username,
1774 source_p->host, chptr->chname);
1775
1776 for(j = 0, flags = ALL_MEMBERS; j < 2; j++, flags = ONLY_CHANOPS)
1777 {
1778 cur_len = mlen;
1779 mbuf = modebuf + mlen;
1780 pbuf = parabuf;
1781 parabuf[0] = '\0';
1782 paracount = paralen = 0;
1783 dir = MODE_QUERY;
1784
1785 for(i = 0; i < mode_count; i++)
1786 {
1787 if(mode_changes[i].letter == 0 || mode_changes[i].mems != flags)
1788 continue;
1789
1790 if(mode_changes[i].arg != NULL)
1791 {
1792 arglen = strlen(mode_changes[i].arg);
1793
1794 if(arglen > MODEBUFLEN - 5)
1795 continue;
1796 }
1797 else
1798 arglen = 0;
1799
1800 /* if we're creeping over MAXMODEPARAMSSERV, or over
1801 * bufsize (4 == +/-,modechar,two spaces) send now.
1802 */
1803 if(mode_changes[i].arg != NULL &&
1804 ((paracount == MAXMODEPARAMSSERV) ||
1805 ((cur_len + paralen + arglen + 4) > (BUFSIZE - 3))))
1806 {
1807 *mbuf = '\0';
1808
1809 if(cur_len > mlen)
1810 sendto_channel_local(flags, chptr, "%s %s", modebuf,
1811 parabuf);
1812 else
1813 continue;
1814
1815 paracount = paralen = 0;
1816 cur_len = mlen;
1817 mbuf = modebuf + mlen;
1818 pbuf = parabuf;
1819 parabuf[0] = '\0';
1820 dir = MODE_QUERY;
1821 }
1822
1823 if(dir != mode_changes[i].dir)
1824 {
1825 *mbuf++ = (mode_changes[i].dir == MODE_ADD) ? '+' : '-';
1826 cur_len++;
1827 dir = mode_changes[i].dir;
1828 }
1829
1830 *mbuf++ = mode_changes[i].letter;
1831 cur_len++;
1832
1833 if(mode_changes[i].arg != NULL)
1834 {
1835 paracount++;
1836 len = rb_sprintf(pbuf, "%s ", mode_changes[i].arg);
1837 pbuf += len;
1838 paralen += len;
1839 }
1840 }
1841
1842 if(paralen && parabuf[paralen - 1] == ' ')
1843 parabuf[paralen - 1] = '\0';
1844
1845 *mbuf = '\0';
1846 if(cur_len > mlen)
1847 sendto_channel_local(flags, chptr, "%s %s", modebuf, parabuf);
1848 }
1849
1850 /* only propagate modes originating locally, or if we're hubbing */
1851 if(MyClient(source_p) || rb_dlink_list_length(&serv_list) > 1)
1852 send_cap_mode_changes(client_p, source_p, chptr, mode_changes, mode_count);
1853 }
1854
1855 /* set_channel_mlock()
1856 *
1857 * inputs - client, source, channel, params
1858 * output -
1859 * side effects - channel mlock is changed / MLOCK is propagated
1860 */
1861 void
1862 set_channel_mlock(struct Client *client_p, struct Client *source_p,
1863 struct Channel *chptr, const char *newmlock, int propagate)
1864 {
1865 rb_free(chptr->mode_lock);
1866 chptr->mode_lock = newmlock ? rb_strdup(newmlock) : NULL;
1867
1868 if (propagate)
1869 {
1870 sendto_server(client_p, NULL, CAP_TS6 | CAP_MLOCK, NOCAPS, ":%s MLOCK %ld %s :%s",
1871 source_p->id, (long) chptr->channelts, chptr->chname,
1872 chptr->mode_lock ? chptr->mode_lock : "");
1873 }
1874 }
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