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[solanum.git] / ircd / chmode.c
CommitLineData
25ea5d2f
EM		 1/*
2 * charybdis: A slightly useful ircd.
3 * chmode.c: channel mode management
4 *
55abcbb2
KB		 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
25ea5d2f
EM		 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"
77d3d2db 45#include "s_assert.h"
b870a5f8 46#include "parse.h"
25ea5d2f
EM		 47
48/* bitmasks for error returns, so we send once per call */
49#define SM_ERR_NOTS 0x00000001 /* No TS on channel */
50#define SM_ERR_NOOPS 0x00000002 /* No chan ops */
51#define SM_ERR_UNKNOWN 0x00000004
52#define SM_ERR_RPL_C 0x00000008
53#define SM_ERR_RPL_B 0x00000010
54#define SM_ERR_RPL_E 0x00000020
55#define SM_ERR_NOTONCHANNEL 0x00000040 /* Not on channel */
56#define SM_ERR_RPL_I 0x00000100
57#define SM_ERR_RPL_D 0x00000200
58#define SM_ERR_NOPRIVS 0x00000400
59#define SM_ERR_RPL_Q 0x00000800
60#define SM_ERR_RPL_F 0x00001000
61#define SM_ERR_MLOCK 0x00002000
62
63#define MAXMODES_SIMPLE 46 /* a-zA-Z except bqeIov */
64
65static struct ChModeChange mode_changes[BUFSIZE];
66static int mode_count;
67static int mode_limit;
68static int mode_limit_simple;
69static int mask_pos;
70static int removed_mask_pos;
71
72char cflagsbuf[256];
73char cflagsmyinfo[256];
74
75int chmode_flags[256];
acdf71d9 76
749d8c11
AC		 77extern int h_get_channel_access;
78
9bec26cc 79/* OPTIMIZE ME! -- dwr */
efccc22c 80void
19716b9f 81construct_cflags_strings(void)
efccc22c
VY		 82{
83 int i;
c18cb68b
VY		 84 char *ptr = cflagsbuf;
85 char *ptr2 = cflagsmyinfo;
55abcbb2 86
c18cb68b
VY		 87 *ptr = '\0';
88 *ptr2 = '\0';
efccc22c
VY		 89
90 for(i = 0; i < 256; i++)
91 {
55abcbb2 92 if( !(chmode_table[i].set_func == chm_ban) &&
f588b956
VY		 93 !(chmode_table[i].set_func == chm_forward) &&
94 !(chmode_table[i].set_func == chm_throttle) &&
95 !(chmode_table[i].set_func == chm_key) &&
96 !(chmode_table[i].set_func == chm_limit) &&
97 !(chmode_table[i].set_func == chm_op) &&
98 !(chmode_table[i].set_func == chm_voice))
efccc22c
VY		 99 {
100 chmode_flags[i] = chmode_table[i].mode_type;
101 }
102 else
103 {
104 chmode_flags[i] = 0;
105 }
55abcbb2 106
c18cb68b
VY		 107 switch (chmode_flags[i])
108 {
c55b2782 109 case MODE_FREETARGET:
73d0f900 110 case MODE_DISFORWARD:
2da6f6eb
JT		 111 if(ConfigChannel.use_forward)
112 *ptr++ = (char) i;
113 break;
c18cb68b
VY		 114 default:
115 if(chmode_flags[i] != 0)
116 {
117 *ptr++ = (char) i;
118 }
119 }
55abcbb2 120
c18cb68b
VY		 121 /* Should we leave orphaned check here? -- dwr */
122 if(!(chmode_table[i].set_func == chm_nosuch) && !(chmode_table[i].set_func == chm_orphaned))
123 {
124 *ptr2++ = (char) i;
125 }
efccc22c 126 }
55abcbb2 127
c18cb68b
VY		 128 *ptr++ = '\0';
129 *ptr2++ = '\0';
46d59e11
VY		 130}
131
132/*
133 * find_umode_slot
134 *
135 * inputs - NONE
136 * outputs - an available cflag bitmask or
137 * 0 if no cflags are available
138 * side effects - NONE
139 */
19716b9f 140static unsigned int
46d59e11
VY		 141find_cflag_slot(void)
142{
143 unsigned int all_cflags = 0, my_cflag = 0, i;
144
145 for (i = 0; i < 256; i++)
146 all_cflags |= chmode_flags[i];
147
148 for (my_cflag = 1; my_cflag && (all_cflags & my_cflag);
149 my_cflag <<= 1);
150
151 return my_cflag;
efccc22c
VY		 152}
153
19716b9f
JT		 154unsigned int
155cflag_add(char c_, ChannelModeFunc function)
156{
157 int c = (unsigned char)c_;
158
159 if (chmode_table[c].set_func != chm_nosuch &&
160 chmode_table[c].set_func != chm_orphaned)
161 return 0;
162
163 if (chmode_table[c].set_func == chm_nosuch)
164 chmode_table[c].mode_type = find_cflag_slot();
165 if (chmode_table[c].mode_type == 0)
166 return 0;
167 chmode_table[c].set_func = function;
168 construct_cflags_strings();
169 return chmode_table[c].mode_type;
170}
171
172void
173cflag_orphan(char c_)
174{
175 int c = (unsigned char)c_;
176
177 s_assert(chmode_flags[c] != 0);
178 chmode_table[c].set_func = chm_orphaned;
179 construct_cflags_strings();
180}
181
3c52f289 182int
b870a5f8 183get_channel_access(struct Client *source_p, struct membership *msptr, int dir, const char *modestr)
212380e3 184{
749d8c11
AC		 185 hook_data_channel_approval moduledata;
186
187 if(!MyClient(source_p))
212380e3
AC		 188 return CHFL_CHANOP;
189
749d8c11
AC		 190 moduledata.client = source_p;
191 moduledata.chptr = msptr->chptr;
192 moduledata.msptr = msptr;
193 moduledata.target = NULL;
b4e3861b 194 moduledata.approved = (msptr != NULL && is_chanop(msptr)) ? CHFL_CHANOP : CHFL_PEON;
202d4966 195 moduledata.dir = dir;
b870a5f8 196 moduledata.modestr = modestr;
8aabb973 197
749d8c11
AC		 198 call_hook(h_get_channel_access, &moduledata);
199
200 return moduledata.approved;
212380e3
AC		 201}
202
f3b3ad0b
JT		 203/* allow_mode_change()
204 *
205 * Checks if mlock and chanops permit a mode change.
206 *
207 * inputs - client, channel, access level, errors pointer, mode char
208 * outputs - 0 on failure, 1 on success
209 * side effects - error message sent on failure
210 */
211static int
212allow_mode_change(struct Client *source_p, struct Channel *chptr, int alevel,
213 int *errors, char c)
214{
215 /* If this mode char is locked, don't allow local users to change it. */
216 if (MyClient(source_p) && chptr->mode_lock && strchr(chptr->mode_lock, c))
217 {
218 if (!(*errors & SM_ERR_MLOCK))
219 sendto_one_numeric(source_p,
220 ERR_MLOCKRESTRICTED,
221 form_str(ERR_MLOCKRESTRICTED),
222 chptr->chname,
223 c,
224 chptr->mode_lock);
225 *errors |= SM_ERR_MLOCK;
226 return 0;
227 }
228 if(alevel != CHFL_CHANOP)
229 {
230 if(!(*errors & SM_ERR_NOOPS))
231 sendto_one(source_p, form_str(ERR_CHANOPRIVSNEEDED),
232 me.name, source_p->name, chptr->chname);
233 *errors |= SM_ERR_NOOPS;
234 return 0;
235 }
236 return 1;
237}
238
212380e3
AC		 239/* add_id()
240 *
765d839d 241 * inputs - client, channel, id to add, type, forward
212380e3
AC		 242 * outputs - 0 on failure, 1 on success
243 * side effects - given id is added to the appropriate list
244 */
245int
765d839d 246add_id(struct Client *source_p, struct Channel *chptr, const char *banid, const char *forward,
330fc5c1 247 rb_dlink_list * list, long mode_type)
212380e3
AC		 248{
249 struct Ban *actualBan;
83294285 250 static char who[USERHOST_REPLYLEN];
212380e3 251 char *realban = LOCAL_COPY(banid);
330fc5c1 252 rb_dlink_node *ptr;
212380e3
AC		 253
254 /* dont let local clients overflow the banlist, or set redundant
255 * bans
256 */
257 if(MyClient(source_p))
258 {
9279ad64 259 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)) >= (unsigned long)(chptr->mode.mode & MODE_EXLIMIT ? ConfigChannel.max_bans_large : ConfigChannel.max_bans))
212380e3
AC		 260 {
261 sendto_one(source_p, form_str(ERR_BANLISTFULL),
262 me.name, source_p->name, chptr->chname, realban);
263 return 0;
264 }
265
5cefa1d6 266 RB_DLINK_FOREACH(ptr, list->head)
212380e3
AC		 267 {
268 actualBan = ptr->data;
fd488ac1 269 if(mask_match(actualBan->banstr, realban))
212380e3
AC		 270 return 0;
271 }
272 }
273 /* dont let remotes set duplicates */
274 else
275 {
5cefa1d6 276 RB_DLINK_FOREACH(ptr, list->head)
212380e3
AC		 277 {
278 actualBan = ptr->data;
279 if(!irccmp(actualBan->banstr, realban))
280 return 0;
281 }
282 }
283
284
285 if(IsPerson(source_p))
b2f0da88 286 rb_sprintf(who, "%s!%s@%s", source_p->name, source_p->username, source_p->host);
212380e3 287 else
f427c8b0 288 rb_strlcpy(who, source_p->name, sizeof(who));
212380e3 289
765d839d 290 actualBan = allocate_ban(realban, who, forward);
e3354945 291 actualBan->when = rb_current_time();
212380e3 292
330fc5c1 293 rb_dlinkAdd(actualBan, &actualBan->node, list);
212380e3
AC		 294
295 /* invalidate the can_send() cache */
296 if(mode_type == CHFL_BAN || mode_type == CHFL_QUIET || mode_type == CHFL_EXCEPTION)
297 chptr->bants++;
298
299 return 1;
300}
301
302/* del_id()
303 *
304 * inputs - channel, id to remove, type
765d839d
EM		 305 * outputs - pointer to ban that was removed, if any
306 * side effects - given id is removed from the appropriate list and returned
212380e3 307 */
765d839d 308struct Ban *
330fc5c1 309del_id(struct Channel *chptr, const char *banid, rb_dlink_list * list, long mode_type)
212380e3 310{
330fc5c1 311 rb_dlink_node *ptr;
212380e3
AC		 312 struct Ban *banptr;
313
314 if(EmptyString(banid))
765d839d 315 return NULL;
212380e3 316
5cefa1d6 317 RB_DLINK_FOREACH(ptr, list->head)
212380e3
AC		 318 {
319 banptr = ptr->data;
320
321 if(irccmp(banid, banptr->banstr) == 0)
322 {
330fc5c1 323 rb_dlinkDelete(&banptr->node, list);
212380e3
AC		 324
325 /* invalidate the can_send() cache */
326 if(mode_type == CHFL_BAN || mode_type == CHFL_QUIET || mode_type == CHFL_EXCEPTION)
327 chptr->bants++;
328
765d839d 329 return banptr;
212380e3
AC		 330 }
331 }
332
765d839d 333 return NULL;
212380e3
AC		 334}
335
336/* check_string()
337 *
338 * input - string to check
339 * output - pointer to 'fixed' string, or "*" if empty
340 * side effects - any white space found becomes \0
341 */
342static char *
343check_string(char *s)
344{
345 char *str = s;
346 static char splat[] = "*";
347 if(!(s && *s))
348 return splat;
349
350 for(; *s; ++s)
351 {
352 if(IsSpace(*s))
353 {
354 *s = '\0';
355 break;
356 }
357 }
358 return str;
359}
360
361/* pretty_mask()
362 *
363 * inputs - mask to pretty
364 * outputs - better version of the mask
365 * side effects - mask is chopped to limits, and transformed:
366 * x!y@z => x!y@z
367 * y@z => *!y@z
368 * x!y => x!y@*
369 * x => x!*@*
370 * z.d => *!*@z.d
371 */
372static char *
373pretty_mask(const char *idmask)
374{
375 static char mask_buf[BUFSIZE];
376 int old_mask_pos;
f4e893b5 377 const char *nick, *user, *host, *forward = NULL;
74b2fb72 378 char *t, *at, *ex;
f4e893b5 379 int nl, ul, hl, fl;
212380e3 380 char *mask;
74b2fb72 381 size_t masklen;
212380e3
AC		 382
383 mask = LOCAL_COPY(idmask);
384 mask = check_string(mask);
385 collapse(mask);
74b2fb72 386 masklen = strlen(mask);
212380e3 387
f4e893b5 388 nick = user = host = "*";
74b2fb72
JT		 389 nl = ul = hl = 1;
390 fl = 0;
212380e3 391
74b2fb72 392 if((size_t) BUFSIZE - mask_pos < masklen + 5)
212380e3
AC		 393 return NULL;
394
395 old_mask_pos = mask_pos;
396
397 if (*mask == '$')
398 {
74b2fb72
JT		 399 memcpy(mask_buf + mask_pos, mask, masklen + 1);
400 mask_pos += masklen + 1;
212380e3
AC		 401 t = mask_buf + old_mask_pos + 1;
402 if (*t == '!')
403 *t = '~';
404 if (*t == '~')
405 t++;
406 *t = ToLower(*t);
407 return mask_buf + old_mask_pos;
408 }
409
74b2fb72
JT		 410 at = ex = NULL;
411 if((t = memchr(mask, '@', masklen)) != NULL)
212380e3
AC		 412 {
413 at = t;
74b2fb72 414 t++;
212380e3 415 if(*t != '\0')
74b2fb72 416 host = t, hl = strlen(t);
212380e3 417
74b2fb72 418 if((t = memchr(mask, '!', at - mask)) != NULL)
212380e3
AC		 419 {
420 ex = t;
74b2fb72
JT		 421 t++;
422 if(at != t)
423 user = t, ul = at - t;
424 if(ex != mask)
425 nick = mask, nl = ex - mask;
212380e3
AC		 426 }
427 else
428 {
74b2fb72
JT		 429 if(at != mask)
430 user = mask, ul = at - mask;
212380e3 431 }
765d839d 432
74b2fb72
JT		 433 if((t = memchr(host, '!', hl)) != NULL ||
434 (t = memchr(host, '$', hl)) != NULL)
765d839d 435 {
74b2fb72
JT		 436 t++;
437 if (host + hl != t)
438 forward = t, fl = host + hl - t;
439 hl = t - 1 - host;
765d839d 440 }
212380e3 441 }
74b2fb72 442 else if((t = memchr(mask, '!', masklen)) != NULL)
212380e3
AC		 443 {
444 ex = t;
74b2fb72
JT		 445 t++;
446 if(ex != mask)
447 nick = mask, nl = ex - mask;
212380e3 448 if(*t != '\0')
74b2fb72 449 user = t, ul = strlen(t);
212380e3 450 }
74b2fb72
JT		 451 else if(memchr(mask, '.', masklen) != NULL ||
452 memchr(mask, ':', masklen) != NULL)
212380e3 453 {
74b2fb72 454 host = mask, hl = masklen;
212380e3
AC		 455 }
456 else
457 {
74b2fb72
JT		 458 if(masklen > 0)
459 nick = mask, nl = masklen;
212380e3
AC		 460 }
461
462 /* truncate values to max lengths */
f4e893b5
JT		 463 if(nl > NICKLEN - 1)
464 nl = NICKLEN - 1;
f4e893b5
JT		 465 if(ul > USERLEN)
466 ul = USERLEN;
f4e893b5
JT		 467 if(hl > HOSTLEN)
468 hl = HOSTLEN;
f4e893b5
JT		 469 if(fl > CHANNELLEN)
470 fl = CHANNELLEN;
471
472 memcpy(mask_buf + mask_pos, nick, nl), mask_pos += nl;
473 mask_buf[mask_pos++] = '!';
474 memcpy(mask_buf + mask_pos, user, ul), mask_pos += ul;
475 mask_buf[mask_pos++] = '@';
476 memcpy(mask_buf + mask_pos, host, hl), mask_pos += hl;
477 if (forward) {
478 mask_buf[mask_pos++] = '$';
479 memcpy(mask_buf + mask_pos, forward, fl), mask_pos += fl;
212380e3 480 }
f4e893b5 481 mask_buf[mask_pos++] = '\0';
212380e3 482
212380e3
AC		 483 return mask_buf + old_mask_pos;
484}
485
0c730321
JT		 486/* check_forward()
487 *
488 * input - client, channel to set mode on, target channel name
489 * output - true if forwarding should be allowed
490 * side effects - numeric sent if not allowed
491 */
492static int
493check_forward(struct Client *source_p, struct Channel *chptr,
494 const char *forward)
495{
496 struct Channel *targptr;
497 struct membership *msptr;
498
499 if(!check_channel_name(forward) ||
500 (MyClient(source_p) && (strlen(forward) > LOC_CHANNELLEN || hash_find_resv(forward))))
501 {
502 sendto_one_numeric(source_p, ERR_BADCHANNAME, form_str(ERR_BADCHANNAME), forward);
503 return 0;
504 }
505 /* don't forward to inconsistent target -- jilles */
506 if(chptr->chname[0] == '#' && forward[0] == '&')
507 {
508 sendto_one_numeric(source_p, ERR_BADCHANNAME,
509 form_str(ERR_BADCHANNAME), forward);
510 return 0;
511 }
512 if(MyClient(source_p) && (targptr = find_channel(forward)) == NULL)
513 {
514 sendto_one_numeric(source_p, ERR_NOSUCHCHANNEL,
515 form_str(ERR_NOSUCHCHANNEL), forward);
516 return 0;
517 }
518 if(MyClient(source_p) && !(targptr->mode.mode & MODE_FREETARGET))
519 {
520 if((msptr = find_channel_membership(targptr, source_p)) == NULL ||
b870a5f8 521 get_channel_access(source_p, msptr, MODE_QUERY, NULL) != CHFL_CHANOP)
0c730321
JT		 522 {
523 sendto_one(source_p, form_str(ERR_CHANOPRIVSNEEDED),
524 me.name, source_p->name, targptr->chname);
525 return 0;
526 }
527 }
528 return 1;
529}
530
212380e3
AC		 531/* fix_key()
532 *
533 * input - key to fix
534 * output - the same key, fixed
535 * side effects - anything below ascii 13 is discarded, ':' discarded,
536 * high ascii is dropped to lower half of ascii table
537 */
538static char *
539fix_key(char *arg)
540{
541 u_char *s, *t, c;
542
543 for(s = t = (u_char *) arg; (c = *s); s++)
544 {
545 c &= 0x7f;
546 if(c != ':' && c != ',' && c > ' ')
547 *t++ = c;
548 }
549
550 *t = '\0';
551 return arg;
552}
553
554/* fix_key_remote()
555 *
556 * input - key to fix
557 * ouput - the same key, fixed
558 * side effects - high ascii dropped to lower half of table,
559 * CR/LF/':' are dropped
560 */
561static char *
562fix_key_remote(char *arg)
563{
564 u_char *s, *t, c;
565
566 for(s = t = (u_char *) arg; (c = *s); s++)
567 {
568 c &= 0x7f;
569 if((c != 0x0a) && (c != ':') && (c != ',') && (c != 0x0d) && (c != ' '))
570 *t++ = c;
571 }
572
573 *t = '\0';
574 return arg;
575}
576
577/* chm_*()
578 *
579 * The handlers for each specific mode.
580 */
581void
582chm_nosuch(struct Client *source_p, struct Channel *chptr,
583 int alevel, int parc, int *parn,
584 const char **parv, int *errors, int dir, char c, long mode_type)
585{
586 if(*errors & SM_ERR_UNKNOWN)
587 return;
588 *errors |= SM_ERR_UNKNOWN;
589 sendto_one(source_p, form_str(ERR_UNKNOWNMODE), me.name, source_p->name, c);
590}
591
592void
593chm_simple(struct Client *source_p, struct Channel *chptr,
594 int alevel, int parc, int *parn,
595 const char **parv, int *errors, int dir, char c, long mode_type)
596{
f3b3ad0b 597 if(!allow_mode_change(source_p, chptr, alevel, errors, c))
212380e3 598 return;
212380e3 599
84c9a8c7 600 if(MyClient(source_p) && (++mode_limit_simple > MAXMODES_SIMPLE))
212380e3
AC		 601 return;
602
603 /* setting + */
78e6b731 604 if((dir == MODE_ADD) && !(chptr->mode.mode & mode_type))
212380e3 605 {
2da6f6eb
JT		 606 /* if +f is disabled, ignore an attempt to set +QF locally */
607 if(!ConfigChannel.use_forward && MyClient(source_p) &&
608 (c == 'Q' || c == 'F'))
609 return;
610
212380e3
AC		 611 chptr->mode.mode |= mode_type;
612
613 mode_changes[mode_count].letter = c;
614 mode_changes[mode_count].dir = MODE_ADD;
212380e3
AC		 615 mode_changes[mode_count].id = NULL;
616 mode_changes[mode_count].mems = ALL_MEMBERS;
cbed45a2
VY		 617 mode_changes[mode_count++].arg = NULL;
618 }
78e6b731 619 else if((dir == MODE_DEL) && (chptr->mode.mode & mode_type))
cbed45a2
VY		 620 {
621 chptr->mode.mode &= ~mode_type;
622
623 mode_changes[mode_count].letter = c;
624 mode_changes[mode_count].dir = MODE_DEL;
cbed45a2
VY		 625 mode_changes[mode_count].mems = ALL_MEMBERS;
626 mode_changes[mode_count].id = NULL;
627 mode_changes[mode_count++].arg = NULL;
628 }
629}
630
631void
632chm_orphaned(struct Client *source_p, struct Channel *chptr,
633 int alevel, int parc, int *parn,
634 const char **parv, int *errors, int dir, char c, long mode_type)
635{
636 if(MyClient(source_p))
637 return;
55abcbb2 638
cbed45a2
VY		 639 if((dir == MODE_ADD) && !(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_ADD;
cbed45a2
VY		 645 mode_changes[mode_count].id = NULL;
646 mode_changes[mode_count].mems = ALL_MEMBERS;
212380e3
AC		 647 mode_changes[mode_count++].arg = NULL;
648 }
649 else if((dir == MODE_DEL) && (chptr->mode.mode & mode_type))
650 {
651 chptr->mode.mode &= ~mode_type;
652
653 mode_changes[mode_count].letter = c;
654 mode_changes[mode_count].dir = MODE_DEL;
212380e3
AC		 655 mode_changes[mode_count].mems = ALL_MEMBERS;
656 mode_changes[mode_count].id = NULL;
657 mode_changes[mode_count++].arg = NULL;
658 }
659}
660
be29ec79
AC		 661void
662chm_hidden(struct Client *source_p, struct Channel *chptr,
663 int alevel, int parc, int *parn,
664 const char **parv, int *errors, int dir, char c, long mode_type)
665{
666 if(!IsOper(source_p) && !IsServer(source_p))
667 {
668 if(!(*errors & SM_ERR_NOPRIVS))
669 sendto_one_numeric(source_p, ERR_NOPRIVILEGES, form_str(ERR_NOPRIVILEGES));
670 *errors |= SM_ERR_NOPRIVS;
671 return;
672 }
673 if(MyClient(source_p) && !IsOperAdmin(source_p))
674 {
675 if(!(*errors & SM_ERR_NOPRIVS))
676 sendto_one(source_p, form_str(ERR_NOPRIVS), me.name,
677 source_p->name, "admin");
678 *errors |= SM_ERR_NOPRIVS;
679 return;
680 }
681
682 if(MyClient(source_p) && (++mode_limit_simple > MAXMODES_SIMPLE))
683 return;
684
685 /* setting + */
686 if((dir == MODE_ADD) && !(chptr->mode.mode & mode_type))
687 {
688 chptr->mode.mode |= mode_type;
689
690 mode_changes[mode_count].letter = c;
691 mode_changes[mode_count].dir = MODE_ADD;
be29ec79
AC		 692 mode_changes[mode_count].id = NULL;
693 mode_changes[mode_count].mems = ONLY_OPERS;
be29ec79
AC		 694 mode_changes[mode_count++].arg = NULL;
695 }
696 else if((dir == MODE_DEL) && (chptr->mode.mode & mode_type))
697 {
698 chptr->mode.mode &= ~mode_type;
699
700 mode_changes[mode_count].letter = c;
701 mode_changes[mode_count].dir = MODE_DEL;
be29ec79
AC		 702 mode_changes[mode_count].mems = ONLY_OPERS;
703 mode_changes[mode_count].id = NULL;
be29ec79
AC		 704 mode_changes[mode_count++].arg = NULL;
705 }
706}
707
212380e3
AC		 708void
709chm_staff(struct Client *source_p, struct Channel *chptr,
710 int alevel, int parc, int *parn,
711 const char **parv, int *errors, int dir, char c, long mode_type)
712{
713 if(!IsOper(source_p) && !IsServer(source_p))
714 {
715 if(!(*errors & SM_ERR_NOPRIVS))
716 sendto_one_numeric(source_p, ERR_NOPRIVILEGES, form_str(ERR_NOPRIVILEGES));
717 *errors |= SM_ERR_NOPRIVS;
718 return;
719 }
1ef5b430
JT		 720 if(MyClient(source_p) && !IsOperResv(source_p))
721 {
722 if(!(*errors & SM_ERR_NOPRIVS))
723 sendto_one(source_p, form_str(ERR_NOPRIVS), me.name,
724 source_p->name, "resv");
725 *errors |= SM_ERR_NOPRIVS;
726 return;
727 }
212380e3 728
aea6c4f9
JT		 729 if(!allow_mode_change(source_p, chptr, CHFL_CHANOP, errors, c))
730 return;
731
84c9a8c7
JT		 732 if(MyClient(source_p) && (++mode_limit_simple > MAXMODES_SIMPLE))
733 return;
734
212380e3
AC		 735 /* setting + */
736 if((dir == MODE_ADD) && !(chptr->mode.mode & mode_type))
737 {
738 chptr->mode.mode |= mode_type;
739
740 mode_changes[mode_count].letter = c;
741 mode_changes[mode_count].dir = MODE_ADD;
212380e3
AC		 742 mode_changes[mode_count].id = NULL;
743 mode_changes[mode_count].mems = ALL_MEMBERS;
744 mode_changes[mode_count++].arg = NULL;
745 }
746 else if((dir == MODE_DEL) && (chptr->mode.mode & mode_type))
747 {
748 chptr->mode.mode &= ~mode_type;
749
750 mode_changes[mode_count].letter = c;
751 mode_changes[mode_count].dir = MODE_DEL;
212380e3
AC		 752 mode_changes[mode_count].mems = ALL_MEMBERS;
753 mode_changes[mode_count].id = NULL;
754 mode_changes[mode_count++].arg = NULL;
755 }
756}
757
758void
759chm_ban(struct Client *source_p, struct Channel *chptr,
760 int alevel, int parc, int *parn,
761 const char **parv, int *errors, int dir, char c, long mode_type)
762{
cea0689e
DF		 763 const char *mask, *raw_mask;
764 char *forward;
330fc5c1
AC		 765 rb_dlink_list *list;
766 rb_dlink_node *ptr;
212380e3
AC		 767 struct Ban *banptr;
768 int errorval;
6f7b36d5
AC		 769 const char *rpl_list_p;
770 const char *rpl_endlist_p;
212380e3
AC		 771 int mems;
772
773 switch (mode_type)
774 {
775 case CHFL_BAN:
776 list = &chptr->banlist;
777 errorval = SM_ERR_RPL_B;
6f7b36d5
AC		 778 rpl_list_p = form_str(RPL_BANLIST);
779 rpl_endlist_p = form_str(RPL_ENDOFBANLIST);
212380e3 780 mems = ALL_MEMBERS;
212380e3
AC		 781 break;
782
783 case CHFL_EXCEPTION:
784 /* if +e is disabled, allow all but +e locally */
785 if(!ConfigChannel.use_except && MyClient(source_p) &&
786 ((dir == MODE_ADD) && (parc > *parn)))
787 return;
788
789 list = &chptr->exceptlist;
790 errorval = SM_ERR_RPL_E;
6f7b36d5
AC		 791 rpl_list_p = form_str(RPL_EXCEPTLIST);
792 rpl_endlist_p = form_str(RPL_ENDOFEXCEPTLIST);
212380e3
AC		 793
794 if(ConfigChannel.use_except || (dir == MODE_DEL))
795 mems = ONLY_CHANOPS;
796 else
797 mems = ONLY_SERVERS;
798 break;
799
800 case CHFL_INVEX:
801 /* if +I is disabled, allow all but +I locally */
802 if(!ConfigChannel.use_invex && MyClient(source_p) &&
803 (dir == MODE_ADD) && (parc > *parn))
804 return;
805
806 list = &chptr->invexlist;
807 errorval = SM_ERR_RPL_I;
6f7b36d5
AC		 808 rpl_list_p = form_str(RPL_INVITELIST);
809 rpl_endlist_p = form_str(RPL_ENDOFINVITELIST);
212380e3
AC		 810
811 if(ConfigChannel.use_invex || (dir == MODE_DEL))
812 mems = ONLY_CHANOPS;
813 else
814 mems = ONLY_SERVERS;
815 break;
816
817 case CHFL_QUIET:
818 list = &chptr->quietlist;
819 errorval = SM_ERR_RPL_Q;
6f7b36d5
AC		 820 rpl_list_p = form_str(RPL_QUIETLIST);
821 rpl_endlist_p = form_str(RPL_ENDOFQUIETLIST);
212380e3 822 mems = ALL_MEMBERS;
212380e3
AC		 823 break;
824
825 default:
826 sendto_realops_snomask(SNO_GENERAL, L_ALL, "chm_ban() called with unknown type!");
827 return;
828 break;
829 }
830
831 if(dir == 0 || parc <= *parn)
832 {
833 if((*errors & errorval) != 0)
834 return;
835 *errors |= errorval;
836
837 /* non-ops cant see +eI lists.. */
f3b3ad0b 838 /* note that this is still permitted if +e/+I are mlocked. */
212380e3
AC		 839 if(alevel != CHFL_CHANOP && mode_type != CHFL_BAN &&
840 mode_type != CHFL_QUIET)
841 {
842 if(!(*errors & SM_ERR_NOOPS))
843 sendto_one(source_p, form_str(ERR_CHANOPRIVSNEEDED),
844 me.name, source_p->name, chptr->chname);
845 *errors |= SM_ERR_NOOPS;
846 return;
847 }
848
5cefa1d6 849 RB_DLINK_FOREACH(ptr, list->head)
212380e3 850 {
765d839d 851 char buf[BANLEN];
212380e3 852 banptr = ptr->data;
765d839d
EM		 853 if(banptr->forward)
854 rb_snprintf(buf, sizeof(buf), "%s$%s", banptr->banstr, banptr->forward);
855 else
856 rb_strlcpy(buf, banptr->banstr, sizeof(buf));
857
6f7b36d5 858 sendto_one(source_p, rpl_list_p,
212380e3 859 me.name, source_p->name, chptr->chname,
765d839d 860 buf, banptr->who, banptr->when);
212380e3 861 }
6f7b36d5 862 sendto_one(source_p, rpl_endlist_p, me.name, source_p->name, chptr->chname);
212380e3
AC		 863 return;
864 }
865
f3b3ad0b 866 if(!allow_mode_change(source_p, chptr, alevel, errors, c))
212380e3 867 return;
f3b3ad0b 868
212380e3
AC		 869
870 if(MyClient(source_p) && (++mode_limit > MAXMODEPARAMS))
871 return;
872
873 raw_mask = parv[(*parn)];
874 (*parn)++;
875
876 /* empty ban, or starts with ':' which messes up s2s, ignore it */
877 if(EmptyString(raw_mask) || *raw_mask == ':')
878 return;
879
880 if(!MyClient(source_p))
881 {
882 if(strchr(raw_mask, ' '))
883 return;
884
885 mask = raw_mask;
886 }
887 else
888 mask = pretty_mask(raw_mask);
889
1aa35c8a
JT		 890 /* we'd have problems parsing this, hyb6 does it too
891 * also make sure it will always fit on a line with channel
892 * name etc.
893 */
894 if(strlen(mask) > IRCD_MIN(BANLEN, MODEBUFLEN - 5))
be0365e1
JT		 895 {
896 sendto_one_numeric(source_p, ERR_INVALIDBAN,
897 form_str(ERR_INVALIDBAN),
898 chptr->chname, c, raw_mask);
1aa35c8a 899 return;
be0365e1 900 }
1aa35c8a 901
765d839d
EM		 902 /* Look for a $ after the first character.
903 * As the first character, it marks an extban; afterwards
904 * it delimits a forward channel.
905 */
906 if ((forward = strchr(mask+1, '$')) != NULL)
907 {
908 *forward++ = '\0';
909 if (*forward == '\0')
910 forward = NULL;
911 }
912
212380e3
AC		 913 /* if we're adding a NEW id */
914 if(dir == MODE_ADD)
915 {
916 if (*mask == '$' && MyClient(source_p))
917 {
918 if (!valid_extban(mask, source_p, chptr, mode_type))
be0365e1
JT		 919 {
920 sendto_one_numeric(source_p, ERR_INVALIDBAN,
921 form_str(ERR_INVALIDBAN),
922 chptr->chname, c, raw_mask);
212380e3 923 return;
be0365e1 924 }
212380e3
AC		 925 }
926
e1dc9e54
JT		 927 /* For compatibility, only check the forward channel from
928 * local clients. Accept any forward channel from servers.
929 */
930 if(forward != NULL && MyClient(source_p))
931 {
f2edb2be
JT		 932 /* For simplicity and future flexibility, do not
933 * allow '$' in forwarding targets.
934 */
be0365e1
JT		 935 if(!ConfigChannel.use_forward ||
936 strchr(forward, '$') != NULL)
937 {
938 sendto_one_numeric(source_p, ERR_INVALIDBAN,
939 form_str(ERR_INVALIDBAN),
940 chptr->chname, c, raw_mask);
941 return;
942 }
943 /* check_forward() sends its own error message */
944 if(!check_forward(source_p, chptr, forward))
f2edb2be 945 return;
5efa7ef6
JT		 946 /* Forwards only make sense for bans. */
947 if(mode_type != CHFL_BAN)
be0365e1
JT		 948 {
949 sendto_one_numeric(source_p, ERR_INVALIDBAN,
950 form_str(ERR_INVALIDBAN),
951 chptr->chname, c, raw_mask);
5efa7ef6 952 return;
be0365e1 953 }
e1dc9e54 954 }
2da6f6eb 955
212380e3
AC		 956 /* dont allow local clients to overflow the banlist, dont
957 * let remote servers set duplicate bans
958 */
765d839d 959 if(!add_id(source_p, chptr, mask, forward, list, mode_type))
212380e3
AC		 960 return;
961
765d839d
EM		 962 if(forward)
963 forward[-1]= '$';
964
212380e3
AC		 965 mode_changes[mode_count].letter = c;
966 mode_changes[mode_count].dir = MODE_ADD;
212380e3
AC		 967 mode_changes[mode_count].mems = mems;
968 mode_changes[mode_count].id = NULL;
969 mode_changes[mode_count++].arg = mask;
970 }
971 else if(dir == MODE_DEL)
972 {
765d839d
EM		 973 struct Ban *removed;
974 static char buf[BANLEN * MAXMODEPARAMS];
975 int old_removed_mask_pos = removed_mask_pos;
976 if((removed = del_id(chptr, mask, list, mode_type)) == NULL)
212380e3
AC		 977 {
978 /* mask isn't a valid ban, check raw_mask */
765d839d 979 if((removed = del_id(chptr, raw_mask, list, mode_type)) != NULL)
212380e3
AC		 980 mask = raw_mask;
981 }
982
765d839d 983 if(removed && removed->forward)
3e910a18 984 removed_mask_pos += rb_snprintf(buf + old_removed_mask_pos, sizeof(buf), "%s$%s", removed->banstr, removed->forward) + 1;
765d839d 985 else
3e910a18 986 removed_mask_pos += rb_strlcpy(buf + old_removed_mask_pos, mask, sizeof(buf)) + 1;
765d839d
EM		 987 if(removed)
988 {
989 free_ban(removed);
990 removed = NULL;
991 }
992
212380e3
AC		 993 mode_changes[mode_count].letter = c;
994 mode_changes[mode_count].dir = MODE_DEL;
212380e3
AC		 995 mode_changes[mode_count].mems = mems;
996 mode_changes[mode_count].id = NULL;
765d839d 997 mode_changes[mode_count++].arg = buf + old_removed_mask_pos;
212380e3
AC		 998 }
999}
1000
1001void
1002chm_op(struct Client *source_p, struct Channel *chptr,
1003 int alevel, int parc, int *parn,
1004 const char **parv, int *errors, int dir, char c, long mode_type)
1005{
1006 struct membership *mstptr;
1007 const char *opnick;
1008 struct Client *targ_p;
1009
f3b3ad0b 1010 if(!allow_mode_change(source_p, chptr, alevel, errors, c))
212380e3 1011 return;
212380e3
AC		 1012
1013 if((dir == MODE_QUERY) || (parc <= *parn))
1014 return;
1015
1016 opnick = parv[(*parn)];
1017 (*parn)++;
1018
1019 /* empty nick */
1020 if(EmptyString(opnick))
1021 {
1022 sendto_one_numeric(source_p, ERR_NOSUCHNICK, form_str(ERR_NOSUCHNICK), "*");
1023 return;
1024 }
1025
1026 if((targ_p = find_chasing(source_p, opnick, NULL)) == NULL)
1027 {
1028 return;
1029 }
1030
1031 mstptr = find_channel_membership(chptr, targ_p);
1032
1033 if(mstptr == NULL)
1034 {
1035 if(!(*errors & SM_ERR_NOTONCHANNEL) && MyClient(source_p))
1036 sendto_one_numeric(source_p, ERR_USERNOTINCHANNEL,
1037 form_str(ERR_USERNOTINCHANNEL), opnick, chptr->chname);
1038 *errors |= SM_ERR_NOTONCHANNEL;
1039 return;
1040 }
1041
1042 if(MyClient(source_p) && (++mode_limit > MAXMODEPARAMS))
1043 return;
1044
1045 if(dir == MODE_ADD)
1046 {
fa0e2152
JT		 1047 if(targ_p == source_p && mstptr->flags & CHFL_CHANOP)
1048 return;
1049
212380e3
AC		 1050 mode_changes[mode_count].letter = c;
1051 mode_changes[mode_count].dir = MODE_ADD;
212380e3
AC		 1052 mode_changes[mode_count].mems = ALL_MEMBERS;
1053 mode_changes[mode_count].id = targ_p->id;
0f8db055 1054 mode_changes[mode_count++].arg = targ_p->name;
212380e3
AC		 1055
1056 mstptr->flags |= CHFL_CHANOP;
212380e3
AC		 1057 }
1058 else
1059 {
1060 if(MyClient(source_p) && IsService(targ_p))
1061 {
1062 sendto_one(source_p, form_str(ERR_ISCHANSERVICE),
1063 me.name, source_p->name, targ_p->name, chptr->chname);
1064 return;
1065 }
1066
1067 mode_changes[mode_count].letter = c;
1068 mode_changes[mode_count].dir = MODE_DEL;
212380e3
AC		 1069 mode_changes[mode_count].mems = ALL_MEMBERS;
1070 mode_changes[mode_count].id = targ_p->id;
0f8db055 1071 mode_changes[mode_count++].arg = targ_p->name;
212380e3
AC		 1072
1073 mstptr->flags &= ~CHFL_CHANOP;
1074 }
1075}
1076
1077void
1078chm_voice(struct Client *source_p, struct Channel *chptr,
1079 int alevel, int parc, int *parn,
1080 const char **parv, int *errors, int dir, char c, long mode_type)
1081{
1082 struct membership *mstptr;
1083 const char *opnick;
1084 struct Client *targ_p;
1085
f3b3ad0b 1086 if(!allow_mode_change(source_p, chptr, alevel, errors, c))
212380e3 1087 return;
212380e3
AC		 1088
1089 if((dir == MODE_QUERY) || parc <= *parn)
1090 return;
1091
1092 opnick = parv[(*parn)];
1093 (*parn)++;
1094
1095 /* empty nick */
1096 if(EmptyString(opnick))
1097 {
1098 sendto_one_numeric(source_p, ERR_NOSUCHNICK, form_str(ERR_NOSUCHNICK), "*");
1099 return;
1100 }
1101
1102 if((targ_p = find_chasing(source_p, opnick, NULL)) == NULL)
1103 {
1104 return;
1105 }
1106
1107 mstptr = find_channel_membership(chptr, targ_p);
1108
1109 if(mstptr == NULL)
1110 {
1111 if(!(*errors & SM_ERR_NOTONCHANNEL) && MyClient(source_p))
1112 sendto_one_numeric(source_p, ERR_USERNOTINCHANNEL,
1113 form_str(ERR_USERNOTINCHANNEL), opnick, chptr->chname);
1114 *errors |= SM_ERR_NOTONCHANNEL;
1115 return;
1116 }
1117
1118 if(MyClient(source_p) && (++mode_limit > MAXMODEPARAMS))
1119 return;
1120
1121 if(dir == MODE_ADD)
1122 {
1123 mode_changes[mode_count].letter = c;
1124 mode_changes[mode_count].dir = MODE_ADD;
212380e3
AC		 1125 mode_changes[mode_count].mems = ALL_MEMBERS;
1126 mode_changes[mode_count].id = targ_p->id;
0f8db055 1127 mode_changes[mode_count++].arg = targ_p->name;
212380e3
AC		 1128
1129 mstptr->flags |= CHFL_VOICE;
1130 }
1131 else
1132 {
1133 mode_changes[mode_count].letter = 'v';
1134 mode_changes[mode_count].dir = MODE_DEL;
212380e3
AC		 1135 mode_changes[mode_count].mems = ALL_MEMBERS;
1136 mode_changes[mode_count].id = targ_p->id;
0f8db055 1137 mode_changes[mode_count++].arg = targ_p->name;
212380e3
AC		 1138
1139 mstptr->flags &= ~CHFL_VOICE;
1140 }
1141}
1142
1143void
1144chm_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
f3b3ad0b 1152 if(!allow_mode_change(source_p, chptr, alevel, errors, c))
212380e3 1153 return;
212380e3
AC		 1154
1155 if(dir == MODE_QUERY)
1156 return;
1157
84c9a8c7
JT		 1158 if(MyClient(source_p) && (++mode_limit_simple > MAXMODES_SIMPLE))
1159 return;
1160
212380e3
AC		 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
b2f0da88 1169 rb_sprintf(limitstr, "%d", limit);
212380e3
AC		 1170
1171 mode_changes[mode_count].letter = c;
1172 mode_changes[mode_count].dir = MODE_ADD;
212380e3
AC		 1173 mode_changes[mode_count].mems = ALL_MEMBERS;
1174 mode_changes[mode_count].id = NULL;
1175 mode_changes[mode_count++].arg = limitstr;
1176
1177 chptr->mode.limit = limit;
1178 }
1179 else if(dir == MODE_DEL)
1180 {
1181 if(!chptr->mode.limit)
1182 return;
1183
1184 chptr->mode.limit = 0;
1185
1186 mode_changes[mode_count].letter = c;
1187 mode_changes[mode_count].dir = MODE_DEL;
212380e3
AC		 1188 mode_changes[mode_count].mems = ALL_MEMBERS;
1189 mode_changes[mode_count].id = NULL;
1190 mode_changes[mode_count++].arg = NULL;
1191 }
1192}
1193
1194void
1195chm_throttle(struct Client *source_p, struct Channel *chptr,
1196 int alevel, int parc, int *parn,
1197 const char **parv, int *errors, int dir, char c, long mode_type)
1198{
1199 int joins = 0, timeslice = 0;
1200
f3b3ad0b 1201 if(!allow_mode_change(source_p, chptr, alevel, errors, c))
212380e3 1202 return;
212380e3
AC		 1203
1204 if(dir == MODE_QUERY)
1205 return;
1206
84c9a8c7
JT		 1207 if(MyClient(source_p) && (++mode_limit_simple > MAXMODES_SIMPLE))
1208 return;
1209
212380e3
AC		 1210 if((dir == MODE_ADD) && parc > *parn)
1211 {
2daf1813
AC		 1212 if (sscanf(parv[(*parn)], "%d:%d", &joins, &timeslice) < 2)
1213 return;
212380e3 1214
90552e21 1215 if(joins <= 0 || timeslice <= 0)
212380e3
AC		 1216 return;
1217
1218 mode_changes[mode_count].letter = c;
1219 mode_changes[mode_count].dir = MODE_ADD;
212380e3
AC		 1220 mode_changes[mode_count].mems = ALL_MEMBERS;
1221 mode_changes[mode_count].id = NULL;
1222 mode_changes[mode_count++].arg = parv[(*parn)];
1223
1224 (*parn)++;
1225
1226 chptr->mode.join_num = joins;
1227 chptr->mode.join_time = timeslice;
1228 }
1229 else if(dir == MODE_DEL)
1230 {
1231 if(!chptr->mode.join_num)
1232 return;
1233
1234 chptr->mode.join_num = 0;
1235 chptr->mode.join_time = 0;
1236 chptr->join_count = 0;
1237 chptr->join_delta = 0;
1238
1239 mode_changes[mode_count].letter = c;
1240 mode_changes[mode_count].dir = MODE_DEL;
212380e3
AC		 1241 mode_changes[mode_count].mems = ALL_MEMBERS;
1242 mode_changes[mode_count].id = NULL;
1243 mode_changes[mode_count++].arg = NULL;
1244 }
1245}
1246
1247void
1248chm_forward(struct Client *source_p, struct Channel *chptr,
1249 int alevel, int parc, int *parn,
1250 const char **parv, int *errors, int dir, char c, long mode_type)
1251{
212380e3
AC		 1252 const char *forward;
1253
2da6f6eb
JT		 1254 /* if +f is disabled, ignore local attempts to set it */
1255 if(!ConfigChannel.use_forward && MyClient(source_p) &&
1256 (dir == MODE_ADD) && (parc > *parn))
1257 return;
1258
212380e3
AC		 1259 if(dir == MODE_QUERY || (dir == MODE_ADD && parc <= *parn))
1260 {
1261 if (!(*errors & SM_ERR_RPL_F))
1262 {
1263 if (*chptr->mode.forward == '\0')
5366977b 1264 sendto_one_notice(source_p, ":%s has no forward channel", chptr->chname);
212380e3 1265 else
5366977b 1266 sendto_one_notice(source_p, ":%s forward channel is %s", chptr->chname, chptr->mode.forward);
212380e3
AC		 1267 *errors |= SM_ERR_RPL_F;
1268 }
1269 return;
1270 }
1271
1272#ifndef FORWARD_OPERONLY
f3b3ad0b 1273 if(!allow_mode_change(source_p, chptr, alevel, errors, c))
212380e3 1274 return;
212380e3
AC		 1275#else
1276 if(!IsOper(source_p) && !IsServer(source_p))
1277 {
1278 if(!(*errors & SM_ERR_NOPRIVS))
1279 sendto_one_numeric(source_p, ERR_NOPRIVILEGES, form_str(ERR_NOPRIVILEGES));
1280 *errors |= SM_ERR_NOPRIVS;
1281 return;
1282 }
1283#endif
1284
84c9a8c7
JT		 1285 if(MyClient(source_p) && (++mode_limit_simple > MAXMODES_SIMPLE))
1286 return;
1287
212380e3
AC		 1288 if(dir == MODE_ADD && parc > *parn)
1289 {
1290 forward = parv[(*parn)];
1291 (*parn)++;
1292
1293 if(EmptyString(forward))
1294 return;
0c730321
JT		 1295
1296 if(!check_forward(source_p, chptr, forward))
212380e3 1297 return;
212380e3 1298
f427c8b0 1299 rb_strlcpy(chptr->mode.forward, forward, sizeof(chptr->mode.forward));
212380e3
AC		 1300
1301 mode_changes[mode_count].letter = c;
1302 mode_changes[mode_count].dir = MODE_ADD;
2da6f6eb
JT		 1303 mode_changes[mode_count].mems =
1304 ConfigChannel.use_forward ? ALL_MEMBERS : ONLY_SERVERS;
212380e3
AC		 1305 mode_changes[mode_count].id = NULL;
1306 mode_changes[mode_count++].arg = forward;
1307 }
1308 else if(dir == MODE_DEL)
1309 {
1310 if(!(*chptr->mode.forward))
1311 return;
1312
1313 *chptr->mode.forward = '\0';
1314
1315 mode_changes[mode_count].letter = c;
1316 mode_changes[mode_count].dir = MODE_DEL;
212380e3
AC		 1317 mode_changes[mode_count].mems = ALL_MEMBERS;
1318 mode_changes[mode_count].id = NULL;
1319 mode_changes[mode_count++].arg = NULL;
1320 }
1321}
1322
1323void
1324chm_key(struct Client *source_p, struct Channel *chptr,
1325 int alevel, int parc, int *parn,
1326 const char **parv, int *errors, int dir, char c, long mode_type)
1327{
1328 char *key;
1329
f3b3ad0b 1330 if(!allow_mode_change(source_p, chptr, alevel, errors, c))
212380e3 1331 return;
212380e3
AC		 1332
1333 if(dir == MODE_QUERY)
1334 return;
1335
84c9a8c7
JT		 1336 if(MyClient(source_p) && (++mode_limit_simple > MAXMODES_SIMPLE))
1337 return;
1338
212380e3
AC		 1339 if((dir == MODE_ADD) && parc > *parn)
1340 {
1341 key = LOCAL_COPY(parv[(*parn)]);
1342 (*parn)++;
1343
1344 if(MyClient(source_p))
1345 fix_key(key);
1346 else
1347 fix_key_remote(key);
1348
1349 if(EmptyString(key))
1350 return;
1351
1352 s_assert(key[0] != ' ');
f427c8b0 1353 rb_strlcpy(chptr->mode.key, key, sizeof(chptr->mode.key));
212380e3
AC		 1354
1355 mode_changes[mode_count].letter = c;
1356 mode_changes[mode_count].dir = MODE_ADD;
212380e3
AC		 1357 mode_changes[mode_count].mems = ALL_MEMBERS;
1358 mode_changes[mode_count].id = NULL;
1359 mode_changes[mode_count++].arg = chptr->mode.key;
1360 }
1361 else if(dir == MODE_DEL)
1362 {
1363 static char splat[] = "*";
1364 int i;
1365
1366 if(parc > *parn)
1367 (*parn)++;
1368
1369 if(!(*chptr->mode.key))
1370 return;
1371
1372 /* hack time. when we get a +k-k mode, the +k arg is
1373 * chptr->mode.key, which the -k sets to \0, so hunt for a
1374 * +k when we get a -k, and set the arg to splat. --anfl
1375 */
1376 for(i = 0; i < mode_count; i++)
1377 {
1378 if(mode_changes[i].letter == 'k' && mode_changes[i].dir == MODE_ADD)
1379 mode_changes[i].arg = splat;
1380 }
1381
1382 *chptr->mode.key = 0;
1383
1384 mode_changes[mode_count].letter = c;
1385 mode_changes[mode_count].dir = MODE_DEL;
212380e3
AC		 1386 mode_changes[mode_count].mems = ALL_MEMBERS;
1387 mode_changes[mode_count].id = NULL;
1388 mode_changes[mode_count++].arg = "*";
1389 }
1390}
1391
212380e3
AC		 1392/* *INDENT-OFF* */
1393struct ChannelMode chmode_table[256] =
1394{
1395 {chm_nosuch, 0 }, /* 0x00 */
1396 {chm_nosuch, 0 }, /* 0x01 */
1397 {chm_nosuch, 0 }, /* 0x02 */
1398 {chm_nosuch, 0 }, /* 0x03 */
1399 {chm_nosuch, 0 }, /* 0x04 */
1400 {chm_nosuch, 0 }, /* 0x05 */
1401 {chm_nosuch, 0 }, /* 0x06 */
1402 {chm_nosuch, 0 }, /* 0x07 */
1403 {chm_nosuch, 0 }, /* 0x08 */
1404 {chm_nosuch, 0 }, /* 0x09 */
1405 {chm_nosuch, 0 }, /* 0x0a */
1406 {chm_nosuch, 0 }, /* 0x0b */
1407 {chm_nosuch, 0 }, /* 0x0c */
1408 {chm_nosuch, 0 }, /* 0x0d */
1409 {chm_nosuch, 0 }, /* 0x0e */
1410 {chm_nosuch, 0 }, /* 0x0f */
1411 {chm_nosuch, 0 }, /* 0x10 */
1412 {chm_nosuch, 0 }, /* 0x11 */
1413 {chm_nosuch, 0 }, /* 0x12 */
1414 {chm_nosuch, 0 }, /* 0x13 */
1415 {chm_nosuch, 0 }, /* 0x14 */
1416 {chm_nosuch, 0 }, /* 0x15 */
1417 {chm_nosuch, 0 }, /* 0x16 */
1418 {chm_nosuch, 0 }, /* 0x17 */
1419 {chm_nosuch, 0 }, /* 0x18 */
1420 {chm_nosuch, 0 }, /* 0x19 */
1421 {chm_nosuch, 0 }, /* 0x1a */
1422 {chm_nosuch, 0 }, /* 0x1b */
1423 {chm_nosuch, 0 }, /* 0x1c */
1424 {chm_nosuch, 0 }, /* 0x1d */
1425 {chm_nosuch, 0 }, /* 0x1e */
1426 {chm_nosuch, 0 }, /* 0x1f */
1427 {chm_nosuch, 0 }, /* 0x20 */
1428 {chm_nosuch, 0 }, /* 0x21 */
1429 {chm_nosuch, 0 }, /* 0x22 */
1430 {chm_nosuch, 0 }, /* 0x23 */
1431 {chm_nosuch, 0 }, /* 0x24 */
1432 {chm_nosuch, 0 }, /* 0x25 */
1433 {chm_nosuch, 0 }, /* 0x26 */
1434 {chm_nosuch, 0 }, /* 0x27 */
1435 {chm_nosuch, 0 }, /* 0x28 */
1436 {chm_nosuch, 0 }, /* 0x29 */
1437 {chm_nosuch, 0 }, /* 0x2a */
1438 {chm_nosuch, 0 }, /* 0x2b */
1439 {chm_nosuch, 0 }, /* 0x2c */
1440 {chm_nosuch, 0 }, /* 0x2d */
1441 {chm_nosuch, 0 }, /* 0x2e */
1442 {chm_nosuch, 0 }, /* 0x2f */
1443 {chm_nosuch, 0 }, /* 0x30 */
1444 {chm_nosuch, 0 }, /* 0x31 */
1445 {chm_nosuch, 0 }, /* 0x32 */
1446 {chm_nosuch, 0 }, /* 0x33 */
1447 {chm_nosuch, 0 }, /* 0x34 */
1448 {chm_nosuch, 0 }, /* 0x35 */
1449 {chm_nosuch, 0 }, /* 0x36 */
1450 {chm_nosuch, 0 }, /* 0x37 */
1451 {chm_nosuch, 0 }, /* 0x38 */
1452 {chm_nosuch, 0 }, /* 0x39 */
1453 {chm_nosuch, 0 }, /* 0x3a */
1454 {chm_nosuch, 0 }, /* 0x3b */
1455 {chm_nosuch, 0 }, /* 0x3c */
1456 {chm_nosuch, 0 }, /* 0x3d */
1457 {chm_nosuch, 0 }, /* 0x3e */
1458 {chm_nosuch, 0 }, /* 0x3f */
1459
1460 {chm_nosuch, 0 }, /* @ */
1461 {chm_nosuch, 0 }, /* A */
1462 {chm_nosuch, 0 }, /* B */
f30a5ee4 1463 {chm_nosuch, 0 }, /* C */
212380e3
AC		 1464 {chm_nosuch, 0 }, /* D */
1465 {chm_nosuch, 0 }, /* E */
1466 {chm_simple, MODE_FREETARGET }, /* F */
1467 {chm_nosuch, 0 }, /* G */
1468 {chm_nosuch, 0 }, /* H */
1469 {chm_ban, CHFL_INVEX }, /* I */
1470 {chm_nosuch, 0 }, /* J */
1471 {chm_nosuch, 0 }, /* K */
1472 {chm_staff, MODE_EXLIMIT }, /* L */
1473 {chm_nosuch, 0 }, /* M */
1474 {chm_nosuch, 0 }, /* N */
1475 {chm_nosuch, 0 }, /* O */
1476 {chm_staff, MODE_PERMANENT }, /* P */
1477 {chm_simple, MODE_DISFORWARD }, /* Q */
1478 {chm_nosuch, 0 }, /* R */
1479 {chm_nosuch, 0 }, /* S */
1480 {chm_nosuch, 0 }, /* T */
1481 {chm_nosuch, 0 }, /* U */
1482 {chm_nosuch, 0 }, /* V */
1483 {chm_nosuch, 0 }, /* W */
1484 {chm_nosuch, 0 }, /* X */
1485 {chm_nosuch, 0 }, /* Y */
1486 {chm_nosuch, 0 }, /* Z */
1487 {chm_nosuch, 0 },
1488 {chm_nosuch, 0 },
1489 {chm_nosuch, 0 },
1490 {chm_nosuch, 0 },
1491 {chm_nosuch, 0 },
1492 {chm_nosuch, 0 },
1493 {chm_nosuch, 0 }, /* a */
1494 {chm_ban, CHFL_BAN }, /* b */
67aeaba5 1495 {chm_nosuch, 0 }, /* c */
212380e3
AC		 1496 {chm_nosuch, 0 }, /* d */
1497 {chm_ban, CHFL_EXCEPTION }, /* e */
1498 {chm_forward, 0 }, /* f */
1499 {chm_simple, MODE_FREEINVITE }, /* g */
1500 {chm_nosuch, 0 }, /* h */
1501 {chm_simple, MODE_INVITEONLY }, /* i */
1502 {chm_throttle, 0 }, /* j */
1503 {chm_key, 0 }, /* k */
1504 {chm_limit, 0 }, /* l */
1505 {chm_simple, MODE_MODERATED }, /* m */
1506 {chm_simple, MODE_NOPRIVMSGS }, /* n */
1507 {chm_op, 0 }, /* o */
1508 {chm_simple, MODE_PRIVATE }, /* p */
1509 {chm_ban, CHFL_QUIET }, /* q */
83b72f91 1510 {chm_simple, MODE_REGONLY }, /* r */
212380e3
AC		 1511 {chm_simple, MODE_SECRET }, /* s */
1512 {chm_simple, MODE_TOPICLIMIT }, /* t */
1513 {chm_nosuch, 0 }, /* u */
1514 {chm_voice, 0 }, /* v */
1515 {chm_nosuch, 0 }, /* w */
1516 {chm_nosuch, 0 }, /* x */
1517 {chm_nosuch, 0 }, /* y */
1518 {chm_simple, MODE_OPMODERATE }, /* z */
1519
1520 {chm_nosuch, 0 }, /* 0x7b */
1521 {chm_nosuch, 0 }, /* 0x7c */
1522 {chm_nosuch, 0 }, /* 0x7d */
1523 {chm_nosuch, 0 }, /* 0x7e */
1524 {chm_nosuch, 0 }, /* 0x7f */
1525
1526 {chm_nosuch, 0 }, /* 0x80 */
1527 {chm_nosuch, 0 }, /* 0x81 */
1528 {chm_nosuch, 0 }, /* 0x82 */
1529 {chm_nosuch, 0 }, /* 0x83 */
1530 {chm_nosuch, 0 }, /* 0x84 */
1531 {chm_nosuch, 0 }, /* 0x85 */
1532 {chm_nosuch, 0 }, /* 0x86 */
1533 {chm_nosuch, 0 }, /* 0x87 */
1534 {chm_nosuch, 0 }, /* 0x88 */
1535 {chm_nosuch, 0 }, /* 0x89 */
1536 {chm_nosuch, 0 }, /* 0x8a */
1537 {chm_nosuch, 0 }, /* 0x8b */
1538 {chm_nosuch, 0 }, /* 0x8c */
1539 {chm_nosuch, 0 }, /* 0x8d */
1540 {chm_nosuch, 0 }, /* 0x8e */
1541 {chm_nosuch, 0 }, /* 0x8f */
1542
1543 {chm_nosuch, 0 }, /* 0x90 */
1544 {chm_nosuch, 0 }, /* 0x91 */
1545 {chm_nosuch, 0 }, /* 0x92 */
1546 {chm_nosuch, 0 }, /* 0x93 */
1547 {chm_nosuch, 0 }, /* 0x94 */
1548 {chm_nosuch, 0 }, /* 0x95 */
1549 {chm_nosuch, 0 }, /* 0x96 */
1550 {chm_nosuch, 0 }, /* 0x97 */
1551 {chm_nosuch, 0 }, /* 0x98 */
1552 {chm_nosuch, 0 }, /* 0x99 */
1553 {chm_nosuch, 0 }, /* 0x9a */
1554 {chm_nosuch, 0 }, /* 0x9b */
1555 {chm_nosuch, 0 }, /* 0x9c */
1556 {chm_nosuch, 0 }, /* 0x9d */
1557 {chm_nosuch, 0 }, /* 0x9e */
1558 {chm_nosuch, 0 }, /* 0x9f */
1559
1560 {chm_nosuch, 0 }, /* 0xa0 */
1561 {chm_nosuch, 0 }, /* 0xa1 */
1562 {chm_nosuch, 0 }, /* 0xa2 */
1563 {chm_nosuch, 0 }, /* 0xa3 */
1564 {chm_nosuch, 0 }, /* 0xa4 */
1565 {chm_nosuch, 0 }, /* 0xa5 */
1566 {chm_nosuch, 0 }, /* 0xa6 */
1567 {chm_nosuch, 0 }, /* 0xa7 */
1568 {chm_nosuch, 0 }, /* 0xa8 */
1569 {chm_nosuch, 0 }, /* 0xa9 */
1570 {chm_nosuch, 0 }, /* 0xaa */
1571 {chm_nosuch, 0 }, /* 0xab */
1572 {chm_nosuch, 0 }, /* 0xac */
1573 {chm_nosuch, 0 }, /* 0xad */
1574 {chm_nosuch, 0 }, /* 0xae */
1575 {chm_nosuch, 0 }, /* 0xaf */
1576
1577 {chm_nosuch, 0 }, /* 0xb0 */
1578 {chm_nosuch, 0 }, /* 0xb1 */
1579 {chm_nosuch, 0 }, /* 0xb2 */
1580 {chm_nosuch, 0 }, /* 0xb3 */
1581 {chm_nosuch, 0 }, /* 0xb4 */
1582 {chm_nosuch, 0 }, /* 0xb5 */
1583 {chm_nosuch, 0 }, /* 0xb6 */
1584 {chm_nosuch, 0 }, /* 0xb7 */
1585 {chm_nosuch, 0 }, /* 0xb8 */
1586 {chm_nosuch, 0 }, /* 0xb9 */
1587 {chm_nosuch, 0 }, /* 0xba */
1588 {chm_nosuch, 0 }, /* 0xbb */
1589 {chm_nosuch, 0 }, /* 0xbc */
1590 {chm_nosuch, 0 }, /* 0xbd */
1591 {chm_nosuch, 0 }, /* 0xbe */
1592 {chm_nosuch, 0 }, /* 0xbf */
1593
1594 {chm_nosuch, 0 }, /* 0xc0 */
1595 {chm_nosuch, 0 }, /* 0xc1 */
1596 {chm_nosuch, 0 }, /* 0xc2 */
1597 {chm_nosuch, 0 }, /* 0xc3 */
1598 {chm_nosuch, 0 }, /* 0xc4 */
1599 {chm_nosuch, 0 }, /* 0xc5 */
1600 {chm_nosuch, 0 }, /* 0xc6 */
1601 {chm_nosuch, 0 }, /* 0xc7 */
1602 {chm_nosuch, 0 }, /* 0xc8 */
1603 {chm_nosuch, 0 }, /* 0xc9 */
1604 {chm_nosuch, 0 }, /* 0xca */
1605 {chm_nosuch, 0 }, /* 0xcb */
1606 {chm_nosuch, 0 }, /* 0xcc */
1607 {chm_nosuch, 0 }, /* 0xcd */
1608 {chm_nosuch, 0 }, /* 0xce */
1609 {chm_nosuch, 0 }, /* 0xcf */
1610
1611 {chm_nosuch, 0 }, /* 0xd0 */
1612 {chm_nosuch, 0 }, /* 0xd1 */
1613 {chm_nosuch, 0 }, /* 0xd2 */
1614 {chm_nosuch, 0 }, /* 0xd3 */
1615 {chm_nosuch, 0 }, /* 0xd4 */
1616 {chm_nosuch, 0 }, /* 0xd5 */
1617 {chm_nosuch, 0 }, /* 0xd6 */
1618 {chm_nosuch, 0 }, /* 0xd7 */
1619 {chm_nosuch, 0 }, /* 0xd8 */
1620 {chm_nosuch, 0 }, /* 0xd9 */
1621 {chm_nosuch, 0 }, /* 0xda */
1622 {chm_nosuch, 0 }, /* 0xdb */
1623 {chm_nosuch, 0 }, /* 0xdc */
1624 {chm_nosuch, 0 }, /* 0xdd */
1625 {chm_nosuch, 0 }, /* 0xde */
1626 {chm_nosuch, 0 }, /* 0xdf */
1627
1628 {chm_nosuch, 0 }, /* 0xe0 */
1629 {chm_nosuch, 0 }, /* 0xe1 */
1630 {chm_nosuch, 0 }, /* 0xe2 */
1631 {chm_nosuch, 0 }, /* 0xe3 */
1632 {chm_nosuch, 0 }, /* 0xe4 */
1633 {chm_nosuch, 0 }, /* 0xe5 */
1634 {chm_nosuch, 0 }, /* 0xe6 */
1635 {chm_nosuch, 0 }, /* 0xe7 */
1636 {chm_nosuch, 0 }, /* 0xe8 */
1637 {chm_nosuch, 0 }, /* 0xe9 */
1638 {chm_nosuch, 0 }, /* 0xea */
1639 {chm_nosuch, 0 }, /* 0xeb */
1640 {chm_nosuch, 0 }, /* 0xec */
1641 {chm_nosuch, 0 }, /* 0xed */
1642 {chm_nosuch, 0 }, /* 0xee */
1643 {chm_nosuch, 0 }, /* 0xef */
1644
1645 {chm_nosuch, 0 }, /* 0xf0 */
1646 {chm_nosuch, 0 }, /* 0xf1 */
1647 {chm_nosuch, 0 }, /* 0xf2 */
1648 {chm_nosuch, 0 }, /* 0xf3 */
1649 {chm_nosuch, 0 }, /* 0xf4 */
1650 {chm_nosuch, 0 }, /* 0xf5 */
1651 {chm_nosuch, 0 }, /* 0xf6 */
1652 {chm_nosuch, 0 }, /* 0xf7 */
1653 {chm_nosuch, 0 }, /* 0xf8 */
1654 {chm_nosuch, 0 }, /* 0xf9 */
1655 {chm_nosuch, 0 }, /* 0xfa */
1656 {chm_nosuch, 0 }, /* 0xfb */
1657 {chm_nosuch, 0 }, /* 0xfc */
1658 {chm_nosuch, 0 }, /* 0xfd */
1659 {chm_nosuch, 0 }, /* 0xfe */
1660 {chm_nosuch, 0 }, /* 0xff */
1661};
1662
1663/* *INDENT-ON* */
1664
1665/* set_channel_mode()
1666 *
1667 * inputs - client, source, channel, membership pointer, params
55abcbb2 1668 * output -
212380e3
AC		 1669 * side effects - channel modes/memberships are changed, MODE is issued
1670 *
1671 * Extensively modified to be hotpluggable, 03/09/06 -- nenolod
1672 */
1673void
1674set_channel_mode(struct Client *client_p, struct Client *source_p,
1675 struct Channel *chptr, struct membership *msptr, int parc, const char *parv[])
1676{
1677 static char modebuf[BUFSIZE];
1678 static char parabuf[BUFSIZE];
1679 char *mbuf;
1680 char *pbuf;
1681 int cur_len, mlen, paralen, paracount, arglen, len;
1682 int i, j, flags;
202d4966 1683 int dir = MODE_QUERY;
212380e3
AC		 1684 int parn = 1;
1685 int errors = 0;
1686 int alevel;
1687 const char *ml = parv[0];
1688 char c;
1689 struct Client *fakesource_p;
202d4966 1690 int reauthorized = 0; /* if we change from MODE_QUERY to MODE_ADD/MODE_DEL, then reauth once, ugly but it works */
be29ec79 1691 int flags_list[3] = { ALL_MEMBERS, ONLY_CHANOPS, ONLY_OPERS };
212380e3
AC		 1692
1693 mask_pos = 0;
765d839d 1694 removed_mask_pos = 0;
212380e3
AC		 1695 mode_count = 0;
1696 mode_limit = 0;
84c9a8c7 1697 mode_limit_simple = 0;
212380e3 1698
212380e3
AC		 1699 /* Hide connecting server on netburst -- jilles */
1700 if (ConfigServerHide.flatten_links && IsServer(source_p) && !has_id(source_p) && !HasSentEob(source_p))
1701 fakesource_p = &me;
1702 else
1703 fakesource_p = source_p;
1704
b870a5f8 1705 alevel = get_channel_access(source_p, msptr, dir, reconstruct_parv(parc, parv));
202d4966 1706
212380e3
AC		 1707 for(; (c = *ml) != 0; ml++)
1708 {
1709 switch (c)
1710 {
1711 case '+':
1712 dir = MODE_ADD;
202d4966
AC		 1713 if (!reauthorized)
1714 {
b870a5f8 1715 alevel = get_channel_access(source_p, msptr, dir, reconstruct_parv(parc, parv));
202d4966
AC		 1716 reauthorized = 1;
1717 }
212380e3
AC		 1718 break;
1719 case '-':
1720 dir = MODE_DEL;
202d4966
AC		 1721 if (!reauthorized)
1722 {
b870a5f8 1723 alevel = get_channel_access(source_p, msptr, dir, reconstruct_parv(parc, parv));
202d4966
AC		 1724 reauthorized = 1;
1725 }
212380e3
AC		 1726 break;
1727 case '=':
1728 dir = MODE_QUERY;
1729 break;
1730 default:
1731 chmode_table[(unsigned char) c].set_func(fakesource_p, chptr, alevel,
1732 parc, &parn, parv,
1733 &errors, dir, c,
1734 chmode_table[(unsigned char) c].mode_type);
1735 break;
1736 }
1737 }
1738
1739 /* bail out if we have nothing to do... */
1740 if(!mode_count)
1741 return;
1742
1743 if(IsServer(source_p))
b2f0da88 1744 mlen = rb_sprintf(modebuf, ":%s MODE %s ", fakesource_p->name, chptr->chname);
212380e3 1745 else
b2f0da88 1746 mlen = rb_sprintf(modebuf, ":%s!%s@%s MODE %s ",
212380e3
AC		 1747 source_p->name, source_p->username,
1748 source_p->host, chptr->chname);
1749
be29ec79 1750 for(j = 0, flags = flags_list[0]; j < 3; j++, flags = flags_list[j])
212380e3
AC		 1751 {
1752 cur_len = mlen;
1753 mbuf = modebuf + mlen;
1754 pbuf = parabuf;
1755 parabuf[0] = '\0';
1756 paracount = paralen = 0;
1757 dir = MODE_QUERY;
1758
1759 for(i = 0; i < mode_count; i++)
1760 {
1761 if(mode_changes[i].letter == 0 || mode_changes[i].mems != flags)
1762 continue;
1763
1764 if(mode_changes[i].arg != NULL)
1765 {
1766 arglen = strlen(mode_changes[i].arg);
1767
1768 if(arglen > MODEBUFLEN - 5)
1769 continue;
1770 }
1771 else
1772 arglen = 0;
1773
1774 /* if we're creeping over MAXMODEPARAMSSERV, or over
1775 * bufsize (4 == +/-,modechar,two spaces) send now.
1776 */
1777 if(mode_changes[i].arg != NULL &&
1778 ((paracount == MAXMODEPARAMSSERV) ||
1779 ((cur_len + paralen + arglen + 4) > (BUFSIZE - 3))))
1780 {
1781 *mbuf = '\0';
1782
1783 if(cur_len > mlen)
1784 sendto_channel_local(flags, chptr, "%s %s", modebuf,
1785 parabuf);
1786 else
1787 continue;
1788
1789 paracount = paralen = 0;
1790 cur_len = mlen;
1791 mbuf = modebuf + mlen;
1792 pbuf = parabuf;
1793 parabuf[0] = '\0';
1794 dir = MODE_QUERY;
1795 }
1796
1797 if(dir != mode_changes[i].dir)
1798 {
1799 *mbuf++ = (mode_changes[i].dir == MODE_ADD) ? '+' : '-';
1800 cur_len++;
1801 dir = mode_changes[i].dir;
1802 }
1803
1804 *mbuf++ = mode_changes[i].letter;
1805 cur_len++;
1806
1807 if(mode_changes[i].arg != NULL)
1808 {
1809 paracount++;
b2f0da88 1810 len = rb_sprintf(pbuf, "%s ", mode_changes[i].arg);
212380e3
AC		 1811 pbuf += len;
1812 paralen += len;
1813 }
1814 }
1815
1816 if(paralen && parabuf[paralen - 1] == ' ')
1817 parabuf[paralen - 1] = '\0';
1818
1819 *mbuf = '\0';
1820 if(cur_len > mlen)
1821 sendto_channel_local(flags, chptr, "%s %s", modebuf, parabuf);
1822 }
1823
1824 /* only propagate modes originating locally, or if we're hubbing */
330fc5c1 1825 if(MyClient(source_p) || rb_dlink_list_length(&serv_list) > 1)
212380e3
AC		 1826 send_cap_mode_changes(client_p, source_p, chptr, mode_changes, mode_count);
1827}
8727cbe8
AC		 1828
1829/* set_channel_mlock()
1830 *
1831 * inputs - client, source, channel, params
55abcbb2 1832 * output -
8727cbe8
AC		 1833 * side effects - channel mlock is changed / MLOCK is propagated
1834 */
1835void
1836set_channel_mlock(struct Client *client_p, struct Client *source_p,
6fb6bd15 1837 struct Channel *chptr, const char *newmlock, int propagate)
8727cbe8 1838{
78e6b731 1839 rb_free(chptr->mode_lock);
6b8db2da 1840 chptr->mode_lock = newmlock ? rb_strdup(newmlock) : NULL;
8727cbe8 1841
6fb6bd15
AC		 1842 if (propagate)
1843 {
1844 sendto_server(client_p, NULL, CAP_TS6 | CAP_MLOCK, NOCAPS, ":%s MLOCK %ld %s :%s",
1845 source_p->id, (long) chptr->channelts, chptr->chname,
1846 chptr->mode_lock ? chptr->mode_lock : "");
1847 }
8727cbe8 1848}
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