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