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