1 |
/* |
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* ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd). |
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* m_sjoin.c: Joins a user to a channel. |
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* |
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* Copyright (C) 2002 by the past and present ircd coders, and others. |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 |
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* USA |
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* |
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* $Id$ |
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*/ |
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|
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#include "stdinc.h" |
26 |
#include "handlers.h" |
27 |
#include "channel.h" |
28 |
#include "channel_mode.h" |
29 |
#include "client.h" |
30 |
#include "hash.h" |
31 |
#include "ircd.h" |
32 |
#include "numeric.h" |
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#include "send.h" |
34 |
#include "common.h" |
35 |
#include "msg.h" |
36 |
#include "parse.h" |
37 |
#include "conf/modules.h" |
38 |
#include "s_serv.h" |
39 |
#include "s_conf.h" |
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|
41 |
static void ms_sjoin(struct Client *, struct Client *, int, char *[]); |
42 |
|
43 |
struct Message sjoin_msgtab = { |
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"SJOIN", 0, 0, 0, 0, MFLG_SLOW, 0, |
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{ m_unregistered, m_ignore, ms_sjoin, m_ignore, m_ignore, m_ignore } |
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}; |
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|
48 |
INIT_MODULE(m_sjoin, "$Revision$") |
49 |
{ |
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mod_add_cmd(&sjoin_msgtab); |
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} |
52 |
|
53 |
CLEANUP_MODULE |
54 |
{ |
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mod_del_cmd(&sjoin_msgtab); |
56 |
} |
57 |
|
58 |
static char modebuf[MODEBUFLEN]; |
59 |
static char parabuf[MODEBUFLEN]; |
60 |
static char sendbuf[MODEBUFLEN]; |
61 |
static const char *para[MAXMODEPARAMS]; |
62 |
static char *mbuf; |
63 |
static int pargs; |
64 |
|
65 |
static void set_final_mode(struct Mode *, struct Mode *); |
66 |
static void remove_our_modes(struct Channel *, struct Client *); |
67 |
static void remove_a_mode(struct Channel *, struct Client *, int, char); |
68 |
static void remove_ban_list(struct Channel *, struct Client *, dlink_list *, char, int); |
69 |
|
70 |
/* ms_sjoin() |
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* |
72 |
* parv[0] - sender |
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* parv[1] - TS |
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* parv[2] - channel |
75 |
* parv[3] - modes + n arguments (key and/or limit) |
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* parv[4+n] - flags+nick list (all in one parameter) |
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* |
78 |
* process a SJOIN, taking the TS's into account to either ignore the |
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* incoming modes or undo the existing ones or merge them, and JOIN |
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* all the specified users while sending JOIN/MODEs to local clients |
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*/ |
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static void |
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ms_sjoin(struct Client *client_p, struct Client *source_p, |
84 |
int parc, char *parv[]) |
85 |
{ |
86 |
struct Channel *chptr; |
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struct Client *target_p; |
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time_t newts; |
89 |
time_t oldts; |
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time_t tstosend; |
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struct Mode mode, *oldmode; |
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int args = 0; |
93 |
char keep_our_modes = YES; |
94 |
char keep_new_modes = YES; |
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char have_many_nicks = NO; |
96 |
int lcount; |
97 |
char nick_prefix[4]; |
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char uid_prefix[4]; |
99 |
char *np, *up; |
100 |
int len_nick = 0; |
101 |
int len_uid = 0; |
102 |
int isnew = 0; |
103 |
int buflen = 0; |
104 |
int slen; |
105 |
unsigned int fl; |
106 |
char *s; |
107 |
char *sptr; |
108 |
char nick_buf[IRCD_BUFSIZE]; /* buffer for modes and prefix */ |
109 |
char uid_buf[IRCD_BUFSIZE]; /* buffer for modes/prefixes for CAP_TS6 servers */ |
110 |
char *nick_ptr, *uid_ptr; /* pointers used for making the two mode/prefix buffers */ |
111 |
char *p; /* pointer used making sjbuf */ |
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dlink_node *m; |
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const char *servername = (ConfigServerHide.hide_servers || IsHidden(source_p)) ? |
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me.name : source_p->name; |
115 |
|
116 |
if (IsClient(source_p) || parc < 5) |
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return; |
118 |
|
119 |
/* SJOIN's for local channels can't happen. */ |
120 |
if (*parv[2] != '#') |
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return; |
122 |
|
123 |
if (!check_channel_name(parv[2], 0)) |
124 |
{ |
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sendto_realops_flags(UMODE_DEBUG, L_ALL, |
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"*** Too long or invalid channel name from %s: %s", |
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client_p->name, parv[2]); |
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return; |
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} |
130 |
|
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modebuf[0] = '\0'; |
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mbuf = modebuf; |
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pargs = 0; |
134 |
newts = atol(parv[1]); |
135 |
|
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mode.mode = 0; |
137 |
mode.limit = 0; |
138 |
mode.key[0] = '\0'; |
139 |
s = parv[3]; |
140 |
|
141 |
while (*s) |
142 |
{ |
143 |
switch (*(s++)) |
144 |
{ |
145 |
case 't': |
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mode.mode |= MODE_TOPICLIMIT; |
147 |
break; |
148 |
case 'n': |
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mode.mode |= MODE_NOPRIVMSGS; |
150 |
break; |
151 |
case 's': |
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mode.mode |= MODE_SECRET; |
153 |
break; |
154 |
case 'm': |
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mode.mode |= MODE_MODERATED; |
156 |
break; |
157 |
case 'i': |
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mode.mode |= MODE_INVITEONLY; |
159 |
break; |
160 |
case 'p': |
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mode.mode |= MODE_PARANOID; |
162 |
break; |
163 |
case 'k': |
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strlcpy(mode.key, parv[4 + args], sizeof(mode.key)); |
165 |
args++; |
166 |
if (parc < 5+args) |
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return; |
168 |
break; |
169 |
case 'l': |
170 |
mode.limit = atoi(parv[4 + args]); |
171 |
args++; |
172 |
if (parc < 5+args) |
173 |
return; |
174 |
break; |
175 |
} |
176 |
} |
177 |
|
178 |
parabuf[0] = '\0'; |
179 |
|
180 |
if ((chptr = hash_find_channel(parv[2])) == NULL) |
181 |
{ |
182 |
isnew = 1; |
183 |
chptr = make_channel(parv[2]); |
184 |
} |
185 |
|
186 |
oldts = chptr->channelts; |
187 |
oldmode = &chptr->mode; |
188 |
|
189 |
if (ConfigFileEntry.ignore_bogus_ts) |
190 |
{ |
191 |
if (newts < 800000000) |
192 |
{ |
193 |
sendto_realops_flags(UMODE_DEBUG, L_ALL, |
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"*** Bogus TS %lu on %s ignored from %s", |
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(unsigned long)newts, chptr->chname, |
196 |
client_p->name); |
197 |
|
198 |
newts = (oldts == 0) ? 0 : 800000000; |
199 |
} |
200 |
} |
201 |
else |
202 |
{ |
203 |
if (!newts && !isnew && oldts) |
204 |
{ |
205 |
sendto_channel_local(ALL_MEMBERS, NO, chptr, |
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":%s NOTICE %s :*** Notice -- TS for %s changed from %lu to 0", |
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me.name, chptr->chname, chptr->chname, (unsigned long)oldts); |
208 |
sendto_realops_flags(UMODE_ALL, L_ALL, |
209 |
"Server %s changing TS on %s from %lu to 0", |
210 |
source_p->name, chptr->chname, (unsigned long)oldts); |
211 |
} |
212 |
} |
213 |
|
214 |
if (isnew) |
215 |
chptr->channelts = tstosend = newts; |
216 |
else if (newts == 0 || oldts == 0) |
217 |
chptr->channelts = tstosend = 0; |
218 |
else if (newts == oldts) |
219 |
tstosend = oldts; |
220 |
else if (newts < oldts) |
221 |
{ |
222 |
keep_our_modes = NO; |
223 |
chptr->channelts = tstosend = newts; |
224 |
} |
225 |
else |
226 |
{ |
227 |
keep_new_modes = NO; |
228 |
tstosend = oldts; |
229 |
} |
230 |
|
231 |
if (!keep_new_modes) |
232 |
mode = *oldmode; |
233 |
else if (keep_our_modes) |
234 |
{ |
235 |
mode.mode |= oldmode->mode; |
236 |
if (oldmode->limit > mode.limit) |
237 |
mode.limit = oldmode->limit; |
238 |
if (strcmp(mode.key, oldmode->key) < 0) |
239 |
strcpy(mode.key, oldmode->key); |
240 |
} |
241 |
|
242 |
set_final_mode(&mode, oldmode); |
243 |
chptr->mode = mode; |
244 |
|
245 |
/* Lost the TS, other side wins, so remove modes on this side */ |
246 |
if (!keep_our_modes) |
247 |
{ |
248 |
remove_our_modes(chptr, source_p); |
249 |
sendto_channel_local(ALL_MEMBERS, NO, chptr, |
250 |
":%s NOTICE %s :*** Notice -- TS for %s changed from %lu to %lu", |
251 |
me.name, chptr->chname, chptr->chname, |
252 |
(unsigned long)oldts, (unsigned long)newts); |
253 |
} |
254 |
|
255 |
if (*modebuf != '\0') |
256 |
{ |
257 |
/* This _SHOULD_ be to ALL_MEMBERS |
258 |
* It contains only +imnpstlk, etc */ |
259 |
sendto_channel_local(ALL_MEMBERS, NO, chptr, ":%s MODE %s %s %s", |
260 |
servername, chptr->chname, modebuf, parabuf); |
261 |
} |
262 |
|
263 |
if (parv[3][0] != '0' && keep_new_modes) |
264 |
{ |
265 |
channel_modes(chptr, source_p, modebuf, parabuf); |
266 |
} |
267 |
else |
268 |
{ |
269 |
modebuf[0] = '0'; |
270 |
modebuf[1] = '\0'; |
271 |
} |
272 |
|
273 |
buflen = ircsprintf(nick_buf, ":%s SJOIN %lu %s %s %s:", |
274 |
source_p->name, (unsigned long)tstosend, |
275 |
chptr->chname, modebuf, parabuf); |
276 |
nick_ptr = nick_buf + buflen; |
277 |
|
278 |
buflen = ircsprintf(uid_buf, ":%s SJOIN %lu %s %s %s:", |
279 |
ID(source_p), (unsigned long)tstosend, |
280 |
chptr->chname, modebuf, parabuf); |
281 |
uid_ptr = uid_buf + buflen; |
282 |
|
283 |
/* check we can fit a nick on the end, as well as \r\n and a prefix " |
284 |
* @%+", and a space. |
285 |
*/ |
286 |
if (buflen >= (IRCD_BUFSIZE - IRCD_MAX(NICKLEN, IDLEN) - 2 - 3 - 1)) |
287 |
{ |
288 |
sendto_realops_flags(UMODE_ALL, L_ALL, |
289 |
"Long SJOIN from server: %s(via %s) (ignored)", |
290 |
source_p->name, client_p->name); |
291 |
return; |
292 |
} |
293 |
|
294 |
mbuf = modebuf; |
295 |
sendbuf[0] = '\0'; |
296 |
pargs = 0; |
297 |
|
298 |
*mbuf++ = '+'; |
299 |
|
300 |
s = parv[args + 4]; |
301 |
while (*s == ' ') |
302 |
s++; |
303 |
if ((p = strchr(s, ' ')) != NULL) |
304 |
{ |
305 |
*p++ = '\0'; |
306 |
while (*p == ' ') |
307 |
p++; |
308 |
have_many_nicks = *p; |
309 |
} |
310 |
|
311 |
while (*s) |
312 |
{ |
313 |
int valid_mode = YES; |
314 |
fl = 0; |
315 |
|
316 |
do |
317 |
{ |
318 |
switch (*s) |
319 |
{ |
320 |
case '@': |
321 |
fl |= CHFL_CHANOP; |
322 |
s++; |
323 |
break; |
324 |
#ifdef HALFOPS |
325 |
case '%': |
326 |
fl |= CHFL_HALFOP; |
327 |
s++; |
328 |
break; |
329 |
#endif |
330 |
case '+': |
331 |
fl |= CHFL_VOICE; |
332 |
s++; |
333 |
break; |
334 |
default: |
335 |
valid_mode = NO; |
336 |
break; |
337 |
} |
338 |
} while (valid_mode); |
339 |
|
340 |
target_p = find_chasing(client_p, source_p, s, NULL); |
341 |
|
342 |
/* |
343 |
* if the client doesnt exist, or if its fake direction/server, skip. |
344 |
* we cannot send ERR_NOSUCHNICK here because if its a UID, we cannot |
345 |
* lookup the nick, and its better to never send the numeric than only |
346 |
* sometimes. |
347 |
*/ |
348 |
if (target_p == NULL || |
349 |
target_p->from != client_p || |
350 |
!IsClient(target_p)) |
351 |
{ |
352 |
goto nextnick; |
353 |
} |
354 |
|
355 |
len_nick = strlen(target_p->name); |
356 |
len_uid = strlen(ID(target_p)); |
357 |
|
358 |
np = nick_prefix; |
359 |
up = uid_prefix; |
360 |
|
361 |
if (keep_new_modes) |
362 |
{ |
363 |
if (fl & CHFL_CHANOP) |
364 |
{ |
365 |
*np++ = '@'; |
366 |
*up++ = '@'; |
367 |
len_nick++; |
368 |
len_uid++; |
369 |
} |
370 |
#ifdef HALFOPS |
371 |
if (fl & CHFL_HALFOP) |
372 |
{ |
373 |
*np++ = '%'; |
374 |
*up++ = '%'; |
375 |
len_nick++; |
376 |
len_uid++; |
377 |
} |
378 |
#endif |
379 |
if (fl & CHFL_VOICE) |
380 |
{ |
381 |
*np++ = '+'; |
382 |
*up++ = '+'; |
383 |
len_nick++; |
384 |
len_uid++; |
385 |
} |
386 |
} |
387 |
else |
388 |
{ |
389 |
if (fl & (CHFL_CHANOP|CHFL_HALFOP)) |
390 |
fl = CHFL_DEOPPED; |
391 |
else |
392 |
fl = 0; |
393 |
} |
394 |
|
395 |
*np = *up = '\0'; |
396 |
|
397 |
if ((nick_ptr - nick_buf + len_nick) > (IRCD_BUFSIZE - 2)) |
398 |
{ |
399 |
sendto_server(client_p, NULL, chptr, 0, CAP_TS6, "%s", nick_buf); |
400 |
|
401 |
buflen = ircsprintf(nick_buf, ":%s SJOIN %lu %s %s %s:", |
402 |
source_p->name, (unsigned long)tstosend, |
403 |
chptr->chname, modebuf, parabuf); |
404 |
nick_ptr = nick_buf + buflen; |
405 |
} |
406 |
|
407 |
nick_ptr += ircsprintf(nick_ptr, "%s%s ", nick_prefix, target_p->name); |
408 |
|
409 |
if ((uid_ptr - uid_buf + len_uid) > (IRCD_BUFSIZE - 2)) |
410 |
{ |
411 |
sendto_server(client_p, NULL, chptr, CAP_TS6, 0, "%s", uid_buf); |
412 |
|
413 |
buflen = ircsprintf(uid_buf, ":%s SJOIN %lu %s %s %s:", |
414 |
ID(source_p), (unsigned long)tstosend, |
415 |
chptr->chname, modebuf, parabuf); |
416 |
uid_ptr = uid_buf + buflen; |
417 |
} |
418 |
|
419 |
uid_ptr += ircsprintf(uid_ptr, "%s%s ", uid_prefix, ID(target_p)); |
420 |
|
421 |
if (!IsMember(target_p, chptr)) |
422 |
{ |
423 |
add_user_to_channel(chptr, target_p, fl, !have_many_nicks); |
424 |
sendto_channel_local(ALL_MEMBERS, NO, chptr, ":%s!%s@%s JOIN :%s", |
425 |
target_p->name, target_p->username, |
426 |
target_p->host, chptr->chname); |
427 |
} |
428 |
|
429 |
if (fl & CHFL_CHANOP) |
430 |
{ |
431 |
*mbuf++ = 'o'; |
432 |
para[pargs++] = target_p->name; |
433 |
|
434 |
if (pargs >= MAXMODEPARAMS) |
435 |
{ |
436 |
/* |
437 |
* Ok, the code is now going to "walk" through |
438 |
* sendbuf, filling in para strings. So, I will use sptr |
439 |
* to point into the sendbuf. |
440 |
* Notice, that ircsprintf() returns the number of chars |
441 |
* successfully inserted into string. |
442 |
* - Dianora |
443 |
*/ |
444 |
|
445 |
sptr = sendbuf; |
446 |
*mbuf = '\0'; |
447 |
for(lcount = 0; lcount < MAXMODEPARAMS; lcount++) |
448 |
{ |
449 |
slen = ircsprintf(sptr, " %s", para[lcount]); /* see? */ |
450 |
sptr += slen; /* ready for next */ |
451 |
} |
452 |
sendto_channel_local(ALL_MEMBERS, NO, chptr, ":%s MODE %s %s%s", |
453 |
servername, chptr->chname, modebuf, sendbuf); |
454 |
mbuf = modebuf; |
455 |
*mbuf++ = '+'; |
456 |
|
457 |
sendbuf[0] = '\0'; |
458 |
pargs = 0; |
459 |
} |
460 |
} |
461 |
#ifdef HALFOPS |
462 |
if (fl & CHFL_HALFOP) |
463 |
{ |
464 |
*mbuf++ = 'h'; |
465 |
para[pargs++] = target_p->name; |
466 |
|
467 |
if (pargs >= MAXMODEPARAMS) |
468 |
{ |
469 |
sptr = sendbuf; |
470 |
*mbuf = '\0'; |
471 |
for(lcount = 0; lcount < MAXMODEPARAMS; lcount++) |
472 |
{ |
473 |
slen = ircsprintf(sptr, " %s", para[lcount]); |
474 |
sptr += slen; |
475 |
} |
476 |
sendto_channel_local(ALL_MEMBERS, NO, chptr, ":%s MODE %s %s%s", |
477 |
servername, chptr->chname, modebuf, sendbuf); |
478 |
|
479 |
mbuf = modebuf; |
480 |
*mbuf++ = '+'; |
481 |
|
482 |
sendbuf[0] = '\0'; |
483 |
pargs = 0; |
484 |
} |
485 |
} |
486 |
#endif |
487 |
if (fl & CHFL_VOICE) |
488 |
{ |
489 |
*mbuf++ = 'v'; |
490 |
para[pargs++] = target_p->name; |
491 |
|
492 |
if (pargs >= MAXMODEPARAMS) |
493 |
{ |
494 |
sptr = sendbuf; |
495 |
*mbuf = '\0'; |
496 |
for (lcount = 0; lcount < MAXMODEPARAMS; lcount++) |
497 |
{ |
498 |
slen = ircsprintf(sptr, " %s", para[lcount]); |
499 |
sptr += slen; |
500 |
} |
501 |
sendto_channel_local(ALL_MEMBERS, NO, chptr, ":%s MODE %s %s%s", |
502 |
servername, chptr->chname, modebuf, sendbuf); |
503 |
|
504 |
mbuf = modebuf; |
505 |
*mbuf++ = '+'; |
506 |
|
507 |
sendbuf[0] = '\0'; |
508 |
pargs = 0; |
509 |
} |
510 |
} |
511 |
|
512 |
nextnick: |
513 |
if ((s = p) == NULL) |
514 |
break; |
515 |
while (*s == ' ') |
516 |
s++; |
517 |
if ((p = strchr(s, ' ')) != NULL) |
518 |
{ |
519 |
*p++ = 0; |
520 |
while (*p == ' ') |
521 |
p++; |
522 |
} |
523 |
} |
524 |
|
525 |
*mbuf = '\0'; |
526 |
*(nick_ptr - 1) = '\0'; |
527 |
*(uid_ptr - 1) = '\0'; |
528 |
|
529 |
/* |
530 |
* checking for lcount < MAXMODEPARAMS at this time is wrong |
531 |
* since the code has already verified above that pargs < MAXMODEPARAMS |
532 |
* checking for para[lcount] != '\0' is also wrong, since |
533 |
* there is no place where para[lcount] is set! |
534 |
* - Dianora |
535 |
*/ |
536 |
|
537 |
if (pargs != 0) |
538 |
{ |
539 |
sptr = sendbuf; |
540 |
|
541 |
for (lcount = 0; lcount < pargs; lcount++) |
542 |
{ |
543 |
slen = ircsprintf(sptr, " %s", para[lcount]); |
544 |
sptr += slen; |
545 |
} |
546 |
|
547 |
sendto_channel_local(ALL_MEMBERS, NO, chptr, ":%s MODE %s %s%s", |
548 |
servername, chptr->chname, modebuf, sendbuf); |
549 |
} |
550 |
|
551 |
/* If this happens, its the result of a malformed SJOIN |
552 |
* a remnant from the old persistent channel code. *sigh* |
553 |
* Or it could be the result of a client just leaving |
554 |
* and leaving us with a channel formed just as the client parts. |
555 |
* - Dianora |
556 |
*/ |
557 |
|
558 |
if ((dlink_list_length(&chptr->members) == 0) && isnew) |
559 |
{ |
560 |
destroy_channel(chptr); |
561 |
return; |
562 |
} |
563 |
|
564 |
if (parv[4 + args][0] == '\0') |
565 |
return; |
566 |
|
567 |
/* relay the SJOIN to other servers */ |
568 |
DLINK_FOREACH(m, serv_list.head) |
569 |
{ |
570 |
target_p = m->data; |
571 |
|
572 |
if (target_p == client_p) |
573 |
continue; |
574 |
|
575 |
if (IsCapable(target_p, CAP_TS6)) |
576 |
sendto_one(target_p, "%s", uid_buf); |
577 |
else |
578 |
sendto_one(target_p, "%s", nick_buf); |
579 |
} |
580 |
|
581 |
if (HasID(source_p) && !keep_our_modes) |
582 |
{ |
583 |
if (dlink_list_length(&chptr->banlist) > 0) |
584 |
remove_ban_list(chptr, client_p, &chptr->banlist, |
585 |
'b', NOCAPS); |
586 |
|
587 |
if (dlink_list_length(&chptr->exceptlist) > 0) |
588 |
remove_ban_list(chptr, client_p, &chptr->exceptlist, |
589 |
'e', CAP_EX); |
590 |
|
591 |
if (dlink_list_length(&chptr->invexlist) > 0) |
592 |
remove_ban_list(chptr, client_p, &chptr->invexlist, |
593 |
'I', CAP_IE); |
594 |
clear_ban_cache(chptr); |
595 |
} |
596 |
} |
597 |
|
598 |
/* set_final_mode |
599 |
* |
600 |
* inputs - channel mode |
601 |
* - old channel mode |
602 |
* output - NONE |
603 |
* side effects - walk through all the channel modes turning off modes |
604 |
* that were on in oldmode but aren't on in mode. |
605 |
* Then walk through turning on modes that are on in mode |
606 |
* but were not set in oldmode. |
607 |
*/ |
608 |
|
609 |
static const struct mode_letter |
610 |
{ |
611 |
unsigned int mode; |
612 |
unsigned char letter; |
613 |
} flags[] = { |
614 |
{ MODE_NOPRIVMSGS, 'n' }, |
615 |
{ MODE_TOPICLIMIT, 't' }, |
616 |
{ MODE_SECRET, 's' }, |
617 |
{ MODE_MODERATED, 'm' }, |
618 |
{ MODE_INVITEONLY, 'i' }, |
619 |
{ MODE_PARANOID, 'p' }, |
620 |
{ 0, '\0' } |
621 |
}; |
622 |
|
623 |
static void |
624 |
set_final_mode(struct Mode *mode, struct Mode *oldmode) |
625 |
{ |
626 |
char *pbuf = parabuf; |
627 |
int len; |
628 |
int i; |
629 |
|
630 |
*mbuf++ = '-'; |
631 |
|
632 |
for (i = 0; flags[i].letter; i++) |
633 |
{ |
634 |
if ((flags[i].mode & oldmode->mode) && |
635 |
!(flags[i].mode & mode->mode)) |
636 |
*mbuf++ = flags[i].letter; |
637 |
} |
638 |
|
639 |
if (oldmode->limit != 0 && mode->limit == 0) |
640 |
*mbuf++ = 'l'; |
641 |
|
642 |
if (oldmode->key[0] && !mode->key[0]) |
643 |
{ |
644 |
*mbuf++ = 'k'; |
645 |
len = ircsprintf(pbuf, "%s ", oldmode->key); |
646 |
pbuf += len; |
647 |
pargs++; |
648 |
} |
649 |
|
650 |
if (*(mbuf-1) == '-') |
651 |
*(mbuf-1) = '+'; |
652 |
else |
653 |
*mbuf++ = '+'; |
654 |
|
655 |
for (i = 0; flags[i].letter; i++) |
656 |
{ |
657 |
if ((flags[i].mode & mode->mode) && |
658 |
!(flags[i].mode & oldmode->mode)) |
659 |
*mbuf++ = flags[i].letter; |
660 |
} |
661 |
|
662 |
if (mode->limit != 0 && oldmode->limit != mode->limit) |
663 |
{ |
664 |
*mbuf++ = 'l'; |
665 |
len = ircsprintf(pbuf, "%d ", mode->limit); |
666 |
pbuf += len; |
667 |
pargs++; |
668 |
} |
669 |
|
670 |
if (mode->key[0] && strcmp(oldmode->key, mode->key)) |
671 |
{ |
672 |
*mbuf++ = 'k'; |
673 |
len = ircsprintf(pbuf, "%s ", mode->key); |
674 |
pbuf += len; |
675 |
pargs++; |
676 |
} |
677 |
if (*(mbuf-1) == '+') |
678 |
*(mbuf-1) = '\0'; |
679 |
else |
680 |
*mbuf = '\0'; |
681 |
} |
682 |
|
683 |
/* remove_our_modes() |
684 |
* |
685 |
* inputs - pointer to channel to remove modes from |
686 |
* - client pointer |
687 |
* output - NONE |
688 |
* side effects - Go through the local members, remove all their |
689 |
* chanop modes etc., this side lost the TS. |
690 |
*/ |
691 |
static void |
692 |
remove_our_modes(struct Channel *chptr, struct Client *source_p) |
693 |
{ |
694 |
remove_a_mode(chptr, source_p, CHFL_CHANOP, 'o'); |
695 |
#ifdef HALFOPS |
696 |
remove_a_mode(chptr, source_p, CHFL_HALFOP, 'h'); |
697 |
#endif |
698 |
remove_a_mode(chptr, source_p, CHFL_VOICE, 'v'); |
699 |
} |
700 |
|
701 |
/* remove_a_mode() |
702 |
* |
703 |
* inputs - pointer to channel |
704 |
* - server or client removing the mode |
705 |
* - mask o/h/v mask to be removed |
706 |
* - flag o/h/v to be removed |
707 |
* output - NONE |
708 |
* side effects - remove ONE mode from all members of a channel |
709 |
*/ |
710 |
static void |
711 |
remove_a_mode(struct Channel *chptr, struct Client *source_p, |
712 |
int mask, char flag) |
713 |
{ |
714 |
dlink_node *ptr; |
715 |
struct Membership *ms; |
716 |
char lmodebuf[MODEBUFLEN]; |
717 |
char *sp=sendbuf; |
718 |
const char *lpara[MAXMODEPARAMS]; |
719 |
int count = 0; |
720 |
int i; |
721 |
int l; |
722 |
|
723 |
mbuf = lmodebuf; |
724 |
*mbuf++ = '-'; |
725 |
*sp = '\0'; |
726 |
|
727 |
DLINK_FOREACH(ptr, chptr->members.head) |
728 |
{ |
729 |
ms = ptr->data; |
730 |
|
731 |
if ((ms->flags & mask) == 0) |
732 |
continue; |
733 |
|
734 |
ms->flags &= ~mask; |
735 |
|
736 |
lpara[count++] = ms->client_p->name; |
737 |
|
738 |
*mbuf++ = flag; |
739 |
|
740 |
if (count >= MAXMODEPARAMS) |
741 |
{ |
742 |
for(i = 0; i < MAXMODEPARAMS; i++) |
743 |
{ |
744 |
l = ircsprintf(sp, " %s", lpara[i]); |
745 |
sp += l; |
746 |
} |
747 |
|
748 |
*mbuf = '\0'; |
749 |
sendto_channel_local(ALL_MEMBERS, NO, chptr, |
750 |
":%s MODE %s %s%s", |
751 |
(IsHidden(source_p) || |
752 |
ConfigServerHide.hide_servers) ? |
753 |
me.name : source_p->name, |
754 |
chptr->chname, lmodebuf, sendbuf); |
755 |
mbuf = lmodebuf; |
756 |
*mbuf++ = '-'; |
757 |
count = 0; |
758 |
sp = sendbuf; |
759 |
*sp = '\0'; |
760 |
} |
761 |
} |
762 |
|
763 |
if (count != 0) |
764 |
{ |
765 |
*mbuf = '\0'; |
766 |
for(i = 0; i < count; i++) |
767 |
{ |
768 |
l = ircsprintf(sp, " %s", lpara[i]); |
769 |
sp += l; |
770 |
} |
771 |
sendto_channel_local(ALL_MEMBERS, NO, chptr, |
772 |
":%s MODE %s %s%s", |
773 |
(IsHidden(source_p) || ConfigServerHide.hide_servers) ? |
774 |
me.name : source_p->name, |
775 |
chptr->chname, lmodebuf, sendbuf); |
776 |
} |
777 |
} |
778 |
|
779 |
/* remove_ban_list() |
780 |
* |
781 |
* inputs - channel, source, list to remove, char of mode, caps required |
782 |
* outputs - none |
783 |
* side effects - given ban list is removed, modes are sent to local clients and |
784 |
* non-ts6 servers linked through another uplink other than source_p |
785 |
*/ |
786 |
static void |
787 |
remove_ban_list(struct Channel *chptr, struct Client *source_p, |
788 |
dlink_list *list, char c, int cap) |
789 |
{ |
790 |
char lmodebuf[MODEBUFLEN]; |
791 |
char lparabuf[IRCD_BUFSIZE]; |
792 |
struct Ban *banptr = NULL; |
793 |
dlink_node *ptr = NULL; |
794 |
dlink_node *next_ptr = NULL; |
795 |
char *pbuf = NULL; |
796 |
int count = 0; |
797 |
int cur_len, mlen, plen; |
798 |
|
799 |
pbuf = lparabuf; |
800 |
|
801 |
cur_len = mlen = ircsprintf(lmodebuf, ":%s MODE %s -", |
802 |
source_p->name, chptr->chname); |
803 |
mbuf = lmodebuf + mlen; |
804 |
|
805 |
DLINK_FOREACH_SAFE(ptr, next_ptr, list->head) |
806 |
{ |
807 |
banptr = ptr->data; |
808 |
|
809 |
plen = banptr->len + 4; /* another +b and "!@ " */ |
810 |
if (count >= MAXMODEPARAMS || |
811 |
(cur_len + 1 /* space between */ + (plen - 1)) > IRCD_BUFSIZE - 2) |
812 |
{ |
813 |
/* NUL-terminate and remove trailing space */ |
814 |
*mbuf = *(pbuf - 1) = '\0'; |
815 |
sendto_channel_local(ALL_MEMBERS, NO, chptr, "%s %s", |
816 |
lmodebuf, lparabuf); |
817 |
sendto_server(source_p, NULL, chptr, cap, CAP_TS6, |
818 |
"%s %s", lmodebuf, lparabuf); |
819 |
|
820 |
cur_len = mlen; |
821 |
mbuf = lmodebuf + mlen; |
822 |
pbuf = lparabuf; |
823 |
count = 0; |
824 |
} |
825 |
|
826 |
*mbuf++ = c; |
827 |
cur_len += plen; |
828 |
pbuf += ircsprintf(pbuf, "%s!%s@%s ", banptr->name, banptr->username, |
829 |
banptr->host); |
830 |
++count; |
831 |
|
832 |
remove_ban(banptr, list); |
833 |
} |
834 |
|
835 |
*mbuf = *(pbuf - 1) = '\0'; |
836 |
sendto_channel_local(ALL_MEMBERS, NO, chptr, "%s %s", lmodebuf, lparabuf); |
837 |
sendto_server(source_p, NULL, chptr, cap, CAP_TS6, |
838 |
"%s %s", lmodebuf, lparabuf); |
839 |
} |