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 "tools.h" |
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#include "handlers.h" |
28 |
#include "channel.h" |
29 |
#include "channel_mode.h" |
30 |
#include "client.h" |
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#include "hash.h" |
32 |
#include "irc_string.h" |
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#include "sprintf_irc.h" |
34 |
#include "ircd.h" |
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#include "list.h" |
36 |
#include "numeric.h" |
37 |
#include "send.h" |
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#include "common.h" |
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#include "msg.h" |
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#include "parse.h" |
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#include "modules.h" |
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#include "s_serv.h" |
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#include "s_conf.h" |
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|
45 |
static void ms_sjoin(struct Client *, struct Client *, int, char *[]); |
46 |
|
47 |
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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|
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#ifndef STATIC_MODULES |
53 |
void |
54 |
_modinit(void) |
55 |
{ |
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mod_add_cmd(&sjoin_msgtab); |
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} |
58 |
|
59 |
void |
60 |
_moddeinit(void) |
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{ |
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mod_del_cmd(&sjoin_msgtab); |
63 |
} |
64 |
|
65 |
const char *_version = "$Revision$"; |
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#endif |
67 |
|
68 |
static char modebuf[MODEBUFLEN]; |
69 |
static char parabuf[MODEBUFLEN]; |
70 |
static char sendbuf[MODEBUFLEN]; |
71 |
static const char *para[MAXMODEPARAMS]; |
72 |
static char *mbuf; |
73 |
static int pargs; |
74 |
|
75 |
static void set_final_mode(struct Mode *, struct Mode *); |
76 |
static void remove_our_modes(struct Channel *, struct Client *); |
77 |
static void remove_a_mode(struct Channel *, struct Client *, int, char); |
78 |
static void remove_ban_list(struct Channel *, struct Client *, dlink_list *, char, int); |
79 |
|
80 |
|
81 |
/* ms_sjoin() |
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* |
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* parv[0] - sender |
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* parv[1] - TS |
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* parv[2] - channel |
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* 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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* |
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* 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, |
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int parc, char *parv[]) |
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{ |
97 |
struct Channel *chptr = NULL; |
98 |
struct Client *target_p = NULL; |
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time_t newts; |
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time_t oldts; |
101 |
time_t tstosend; |
102 |
struct Mode mode, *oldmode; |
103 |
int args = 0; |
104 |
char keep_our_modes = YES; |
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char keep_new_modes = YES; |
106 |
char have_many_nicks = NO; |
107 |
int lcount; |
108 |
char nick_prefix[4]; |
109 |
char uid_prefix[4]; |
110 |
char *np, *up; |
111 |
int len_nick = 0; |
112 |
int len_uid = 0; |
113 |
int isnew = 0; |
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int buflen = 0; |
115 |
int slen; |
116 |
unsigned int fl; |
117 |
char *s; |
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char *sptr; |
119 |
char nick_buf[IRCD_BUFSIZE]; /* buffer for modes and prefix */ |
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char uid_buf[IRCD_BUFSIZE]; /* buffer for modes/prefixes for CAP_TS6 servers */ |
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char *nick_ptr, *uid_ptr; /* pointers used for making the two mode/prefix buffers */ |
122 |
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; |
126 |
|
127 |
if (IsClient(source_p) || parc < 5) |
128 |
return; |
129 |
|
130 |
/* SJOIN's for local channels can't happen. */ |
131 |
if (*parv[2] != '#') |
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return; |
133 |
|
134 |
if (!check_channel_name(parv[2], 0)) |
135 |
{ |
136 |
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; |
140 |
} |
141 |
|
142 |
modebuf[0] = '\0'; |
143 |
mbuf = modebuf; |
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pargs = 0; |
145 |
newts = atol(parv[1]); |
146 |
|
147 |
mode.mode = 0; |
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mode.limit = 0; |
149 |
mode.key[0] = '\0'; |
150 |
|
151 |
for (s = parv[3]; *s; ++s) |
152 |
{ |
153 |
switch (*s) |
154 |
{ |
155 |
case 't': |
156 |
mode.mode |= MODE_TOPICLIMIT; |
157 |
break; |
158 |
case 'n': |
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mode.mode |= MODE_NOPRIVMSGS; |
160 |
break; |
161 |
case 's': |
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mode.mode |= MODE_SECRET; |
163 |
break; |
164 |
case 'm': |
165 |
mode.mode |= MODE_MODERATED; |
166 |
break; |
167 |
case 'i': |
168 |
mode.mode |= MODE_INVITEONLY; |
169 |
break; |
170 |
case 'p': |
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mode.mode |= MODE_PRIVATE; |
172 |
break; |
173 |
case 'k': |
174 |
strlcpy(mode.key, parv[4 + args], sizeof(mode.key)); |
175 |
args++; |
176 |
|
177 |
if (parc < 5 + args) |
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return; |
179 |
break; |
180 |
case 'l': |
181 |
mode.limit = atoi(parv[4 + args]); |
182 |
args++; |
183 |
|
184 |
if (parc < 5 + args) |
185 |
return; |
186 |
break; |
187 |
} |
188 |
} |
189 |
|
190 |
if ((chptr = hash_find_channel(parv[2])) == NULL) |
191 |
{ |
192 |
isnew = 1; |
193 |
chptr = make_channel(parv[2]); |
194 |
} |
195 |
|
196 |
parabuf[0] = '\0'; |
197 |
oldts = chptr->channelts; |
198 |
oldmode = &chptr->mode; |
199 |
|
200 |
if (ConfigFileEntry.ignore_bogus_ts) |
201 |
{ |
202 |
if (newts < 800000000) |
203 |
{ |
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sendto_realops_flags(UMODE_DEBUG, L_ALL, |
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"*** Bogus TS %lu on %s ignored from %s", |
206 |
(unsigned long)newts, chptr->chname, |
207 |
client_p->name); |
208 |
|
209 |
newts = (oldts == 0) ? 0 : 800000000; |
210 |
} |
211 |
} |
212 |
else |
213 |
{ |
214 |
if (!newts && !isnew && oldts) |
215 |
{ |
216 |
sendto_channel_local(ALL_MEMBERS, NO, chptr, |
217 |
":%s NOTICE %s :*** Notice -- TS for %s changed from %lu to 0", |
218 |
me.name, chptr->chname, chptr->chname, (unsigned long)oldts); |
219 |
sendto_realops_flags(UMODE_ALL, L_ALL, |
220 |
"Server %s changing TS on %s from %lu to 0", |
221 |
source_p->name, chptr->chname, (unsigned long)oldts); |
222 |
} |
223 |
} |
224 |
|
225 |
if (isnew) |
226 |
chptr->channelts = tstosend = newts; |
227 |
else if (newts == 0 || oldts == 0) |
228 |
chptr->channelts = tstosend = 0; |
229 |
else if (newts == oldts) |
230 |
tstosend = oldts; |
231 |
else if (newts < oldts) |
232 |
{ |
233 |
keep_our_modes = NO; |
234 |
chptr->channelts = tstosend = newts; |
235 |
} |
236 |
else |
237 |
{ |
238 |
keep_new_modes = NO; |
239 |
tstosend = oldts; |
240 |
} |
241 |
|
242 |
if (!keep_new_modes) |
243 |
mode = *oldmode; |
244 |
else if (keep_our_modes) |
245 |
{ |
246 |
mode.mode |= oldmode->mode; |
247 |
if (oldmode->limit > mode.limit) |
248 |
mode.limit = oldmode->limit; |
249 |
if (strcmp(mode.key, oldmode->key) < 0) |
250 |
strcpy(mode.key, oldmode->key); |
251 |
} |
252 |
set_final_mode(&mode, oldmode); |
253 |
chptr->mode = mode; |
254 |
|
255 |
/* Lost the TS, other side wins, so remove modes on this side */ |
256 |
if (!keep_our_modes) |
257 |
{ |
258 |
remove_our_modes(chptr, source_p); |
259 |
|
260 |
if (chptr->topic) |
261 |
{ |
262 |
set_channel_topic(chptr, NULL, NULL, 0); |
263 |
chptr->topic_time = 0; |
264 |
sendto_channel_local(ALL_MEMBERS, NO, chptr, ":%s TOPIC %s :", |
265 |
(IsHidden(source_p) || |
266 |
ConfigServerHide.hide_servers) ? |
267 |
me.name : source_p->name, chptr->chname); |
268 |
} |
269 |
|
270 |
sendto_channel_local(ALL_MEMBERS, NO, chptr, |
271 |
":%s NOTICE %s :*** Notice -- TS for %s changed from %lu to %lu", |
272 |
me.name, chptr->chname, chptr->chname, |
273 |
(unsigned long)oldts, (unsigned long)newts); |
274 |
} |
275 |
|
276 |
if (*modebuf != '\0') |
277 |
{ |
278 |
/* This _SHOULD_ be to ALL_MEMBERS |
279 |
* It contains only +imnpstlk, etc */ |
280 |
sendto_channel_local(ALL_MEMBERS, NO, chptr, ":%s MODE %s %s %s", |
281 |
servername, chptr->chname, modebuf, parabuf); |
282 |
} |
283 |
|
284 |
if (parv[3][0] != '0' && keep_new_modes) |
285 |
{ |
286 |
channel_modes(chptr, source_p, modebuf, parabuf); |
287 |
} |
288 |
else |
289 |
{ |
290 |
modebuf[0] = '0'; |
291 |
modebuf[1] = '\0'; |
292 |
} |
293 |
|
294 |
buflen = ircsprintf(nick_buf, ":%s SJOIN %lu %s %s %s:", |
295 |
source_p->name, (unsigned long)tstosend, |
296 |
chptr->chname, modebuf, parabuf); |
297 |
nick_ptr = nick_buf + buflen; |
298 |
|
299 |
buflen = ircsprintf(uid_buf, ":%s SJOIN %lu %s %s %s:", |
300 |
ID(source_p), (unsigned long)tstosend, |
301 |
chptr->chname, modebuf, parabuf); |
302 |
uid_ptr = uid_buf + buflen; |
303 |
|
304 |
/* check we can fit a nick on the end, as well as \r\n and a prefix " |
305 |
* @%+", and a space. |
306 |
*/ |
307 |
if (buflen >= (IRCD_BUFSIZE - IRCD_MAX(NICKLEN, IDLEN) - 2 - 3 - 1)) |
308 |
{ |
309 |
sendto_realops_flags(UMODE_ALL, L_ALL, |
310 |
"Long SJOIN from server: %s(via %s) (ignored)", |
311 |
source_p->name, client_p->name); |
312 |
return; |
313 |
} |
314 |
|
315 |
mbuf = modebuf; |
316 |
sendbuf[0] = '\0'; |
317 |
pargs = 0; |
318 |
|
319 |
*mbuf++ = '+'; |
320 |
|
321 |
s = parv[args + 4]; |
322 |
while (*s == ' ') |
323 |
s++; |
324 |
if ((p = strchr(s, ' ')) != NULL) |
325 |
{ |
326 |
*p++ = '\0'; |
327 |
while (*p == ' ') |
328 |
p++; |
329 |
have_many_nicks = *p; |
330 |
} |
331 |
|
332 |
while (*s) |
333 |
{ |
334 |
int valid_mode = YES; |
335 |
fl = 0; |
336 |
|
337 |
do |
338 |
{ |
339 |
switch (*s) |
340 |
{ |
341 |
case '@': |
342 |
fl |= CHFL_CHANOP; |
343 |
s++; |
344 |
break; |
345 |
#ifdef HALFOPS |
346 |
case '%': |
347 |
fl |= CHFL_HALFOP; |
348 |
s++; |
349 |
break; |
350 |
#endif |
351 |
case '+': |
352 |
fl |= CHFL_VOICE; |
353 |
s++; |
354 |
break; |
355 |
default: |
356 |
valid_mode = NO; |
357 |
break; |
358 |
} |
359 |
} while (valid_mode); |
360 |
|
361 |
target_p = find_chasing(client_p, source_p, s, NULL); |
362 |
|
363 |
/* |
364 |
* if the client doesnt exist, or if its fake direction/server, skip. |
365 |
* we cannot send ERR_NOSUCHNICK here because if its a UID, we cannot |
366 |
* lookup the nick, and its better to never send the numeric than only |
367 |
* sometimes. |
368 |
*/ |
369 |
if (target_p == NULL || |
370 |
target_p->from != client_p || |
371 |
!IsClient(target_p)) |
372 |
{ |
373 |
goto nextnick; |
374 |
} |
375 |
|
376 |
len_nick = strlen(target_p->name); |
377 |
len_uid = strlen(ID(target_p)); |
378 |
|
379 |
np = nick_prefix; |
380 |
up = uid_prefix; |
381 |
|
382 |
if (keep_new_modes) |
383 |
{ |
384 |
if (fl & CHFL_CHANOP) |
385 |
{ |
386 |
*np++ = '@'; |
387 |
*up++ = '@'; |
388 |
len_nick++; |
389 |
len_uid++; |
390 |
} |
391 |
#ifdef HALFOPS |
392 |
if (fl & CHFL_HALFOP) |
393 |
{ |
394 |
*np++ = '%'; |
395 |
*up++ = '%'; |
396 |
len_nick++; |
397 |
len_uid++; |
398 |
} |
399 |
#endif |
400 |
if (fl & CHFL_VOICE) |
401 |
{ |
402 |
*np++ = '+'; |
403 |
*up++ = '+'; |
404 |
len_nick++; |
405 |
len_uid++; |
406 |
} |
407 |
} |
408 |
else |
409 |
{ |
410 |
if (fl & (CHFL_CHANOP|CHFL_HALFOP)) |
411 |
fl = CHFL_DEOPPED; |
412 |
else |
413 |
fl = 0; |
414 |
} |
415 |
*np = *up = '\0'; |
416 |
|
417 |
if ((nick_ptr - nick_buf + len_nick) > (IRCD_BUFSIZE - 2)) |
418 |
{ |
419 |
sendto_server(client_p, chptr, 0, CAP_TS6, "%s", nick_buf); |
420 |
|
421 |
buflen = ircsprintf(nick_buf, ":%s SJOIN %lu %s %s %s:", |
422 |
source_p->name, (unsigned long)tstosend, |
423 |
chptr->chname, modebuf, parabuf); |
424 |
nick_ptr = nick_buf + buflen; |
425 |
} |
426 |
|
427 |
nick_ptr += ircsprintf(nick_ptr, "%s%s ", nick_prefix, target_p->name); |
428 |
|
429 |
if ((uid_ptr - uid_buf + len_uid) > (IRCD_BUFSIZE - 2)) |
430 |
{ |
431 |
sendto_server(client_p, chptr, CAP_TS6, 0, "%s", uid_buf); |
432 |
|
433 |
buflen = ircsprintf(uid_buf, ":%s SJOIN %lu %s %s %s:", |
434 |
ID(source_p), (unsigned long)tstosend, |
435 |
chptr->chname, modebuf, parabuf); |
436 |
uid_ptr = uid_buf + buflen; |
437 |
} |
438 |
|
439 |
uid_ptr += ircsprintf(uid_ptr, "%s%s ", uid_prefix, ID(target_p)); |
440 |
|
441 |
if (!IsMember(target_p, chptr)) |
442 |
{ |
443 |
add_user_to_channel(chptr, target_p, fl, !have_many_nicks); |
444 |
sendto_channel_local(ALL_MEMBERS, NO, chptr, ":%s!%s@%s JOIN :%s", |
445 |
target_p->name, target_p->username, |
446 |
target_p->host, chptr->chname); |
447 |
} |
448 |
|
449 |
if (fl & CHFL_CHANOP) |
450 |
{ |
451 |
*mbuf++ = 'o'; |
452 |
para[pargs++] = target_p->name; |
453 |
|
454 |
if (pargs >= MAXMODEPARAMS) |
455 |
{ |
456 |
/* |
457 |
* Ok, the code is now going to "walk" through |
458 |
* sendbuf, filling in para strings. So, I will use sptr |
459 |
* to point into the sendbuf. |
460 |
* Notice, that ircsprintf() returns the number of chars |
461 |
* successfully inserted into string. |
462 |
* - Dianora |
463 |
*/ |
464 |
|
465 |
sptr = sendbuf; |
466 |
*mbuf = '\0'; |
467 |
for(lcount = 0; lcount < MAXMODEPARAMS; lcount++) |
468 |
{ |
469 |
slen = ircsprintf(sptr, " %s", para[lcount]); /* see? */ |
470 |
sptr += slen; /* ready for next */ |
471 |
} |
472 |
sendto_channel_local(ALL_MEMBERS, NO, chptr, ":%s MODE %s %s%s", |
473 |
servername, chptr->chname, modebuf, sendbuf); |
474 |
mbuf = modebuf; |
475 |
*mbuf++ = '+'; |
476 |
|
477 |
sendbuf[0] = '\0'; |
478 |
pargs = 0; |
479 |
} |
480 |
} |
481 |
#ifdef HALFOPS |
482 |
if (fl & CHFL_HALFOP) |
483 |
{ |
484 |
*mbuf++ = 'h'; |
485 |
para[pargs++] = target_p->name; |
486 |
|
487 |
if (pargs >= MAXMODEPARAMS) |
488 |
{ |
489 |
sptr = sendbuf; |
490 |
*mbuf = '\0'; |
491 |
for(lcount = 0; lcount < MAXMODEPARAMS; lcount++) |
492 |
{ |
493 |
slen = ircsprintf(sptr, " %s", para[lcount]); |
494 |
sptr += slen; |
495 |
} |
496 |
sendto_channel_local(ALL_MEMBERS, NO, chptr, ":%s MODE %s %s%s", |
497 |
servername, chptr->chname, modebuf, sendbuf); |
498 |
|
499 |
mbuf = modebuf; |
500 |
*mbuf++ = '+'; |
501 |
|
502 |
sendbuf[0] = '\0'; |
503 |
pargs = 0; |
504 |
} |
505 |
} |
506 |
#endif |
507 |
if (fl & CHFL_VOICE) |
508 |
{ |
509 |
*mbuf++ = 'v'; |
510 |
para[pargs++] = target_p->name; |
511 |
|
512 |
if (pargs >= MAXMODEPARAMS) |
513 |
{ |
514 |
sptr = sendbuf; |
515 |
*mbuf = '\0'; |
516 |
for (lcount = 0; lcount < MAXMODEPARAMS; lcount++) |
517 |
{ |
518 |
slen = ircsprintf(sptr, " %s", para[lcount]); |
519 |
sptr += slen; |
520 |
} |
521 |
sendto_channel_local(ALL_MEMBERS, NO, chptr, ":%s MODE %s %s%s", |
522 |
servername, chptr->chname, modebuf, sendbuf); |
523 |
|
524 |
mbuf = modebuf; |
525 |
*mbuf++ = '+'; |
526 |
|
527 |
sendbuf[0] = '\0'; |
528 |
pargs = 0; |
529 |
} |
530 |
} |
531 |
|
532 |
nextnick: |
533 |
if ((s = p) == NULL) |
534 |
break; |
535 |
while (*s == ' ') |
536 |
s++; |
537 |
if ((p = strchr(s, ' ')) != NULL) |
538 |
{ |
539 |
*p++ = 0; |
540 |
while (*p == ' ') |
541 |
p++; |
542 |
} |
543 |
} |
544 |
|
545 |
*mbuf = '\0'; |
546 |
*(nick_ptr - 1) = '\0'; |
547 |
*(uid_ptr - 1) = '\0'; |
548 |
|
549 |
/* |
550 |
* checking for lcount < MAXMODEPARAMS at this time is wrong |
551 |
* since the code has already verified above that pargs < MAXMODEPARAMS |
552 |
* checking for para[lcount] != '\0' is also wrong, since |
553 |
* there is no place where para[lcount] is set! |
554 |
* - Dianora |
555 |
*/ |
556 |
|
557 |
if (pargs != 0) |
558 |
{ |
559 |
sptr = sendbuf; |
560 |
|
561 |
for (lcount = 0; lcount < pargs; lcount++) |
562 |
{ |
563 |
slen = ircsprintf(sptr, " %s", para[lcount]); |
564 |
sptr += slen; |
565 |
} |
566 |
|
567 |
sendto_channel_local(ALL_MEMBERS, NO, chptr, ":%s MODE %s %s%s", |
568 |
servername, chptr->chname, modebuf, sendbuf); |
569 |
} |
570 |
|
571 |
/* If this happens, its the result of a malformed SJOIN |
572 |
* a remnant from the old persistent channel code. *sigh* |
573 |
* Or it could be the result of a client just leaving |
574 |
* and leaving us with a channel formed just as the client parts. |
575 |
* - Dianora |
576 |
*/ |
577 |
|
578 |
if ((dlink_list_length(&chptr->members) == 0) && isnew) |
579 |
{ |
580 |
destroy_channel(chptr); |
581 |
return; |
582 |
} |
583 |
|
584 |
if (parv[4 + args][0] == '\0') |
585 |
return; |
586 |
|
587 |
/* relay the SJOIN to other servers */ |
588 |
DLINK_FOREACH(m, serv_list.head) |
589 |
{ |
590 |
target_p = m->data; |
591 |
|
592 |
if (target_p == client_p) |
593 |
continue; |
594 |
|
595 |
if (IsCapable(target_p, CAP_TS6)) |
596 |
sendto_one(target_p, "%s", uid_buf); |
597 |
else |
598 |
sendto_one(target_p, "%s", nick_buf); |
599 |
} |
600 |
|
601 |
if (HasID(source_p) && !keep_our_modes) |
602 |
{ |
603 |
if (dlink_list_length(&chptr->banlist) > 0) |
604 |
remove_ban_list(chptr, client_p, &chptr->banlist, |
605 |
'b', NOCAPS); |
606 |
|
607 |
if (dlink_list_length(&chptr->exceptlist) > 0) |
608 |
remove_ban_list(chptr, client_p, &chptr->exceptlist, |
609 |
'e', CAP_EX); |
610 |
|
611 |
if (dlink_list_length(&chptr->invexlist) > 0) |
612 |
remove_ban_list(chptr, client_p, &chptr->invexlist, |
613 |
'I', CAP_IE); |
614 |
clear_ban_cache(chptr); |
615 |
} |
616 |
} |
617 |
|
618 |
/* set_final_mode |
619 |
* |
620 |
* inputs - channel mode |
621 |
* - old channel mode |
622 |
* output - NONE |
623 |
* side effects - walk through all the channel modes turning off modes |
624 |
* that were on in oldmode but aren't on in mode. |
625 |
* Then walk through turning on modes that are on in mode |
626 |
* but were not set in oldmode. |
627 |
*/ |
628 |
|
629 |
static const struct mode_letter |
630 |
{ |
631 |
unsigned int mode; |
632 |
unsigned char letter; |
633 |
} flags[] = { |
634 |
{ MODE_NOPRIVMSGS, 'n' }, |
635 |
{ MODE_TOPICLIMIT, 't' }, |
636 |
{ MODE_SECRET, 's' }, |
637 |
{ MODE_MODERATED, 'm' }, |
638 |
{ MODE_INVITEONLY, 'i' }, |
639 |
{ MODE_PRIVATE, 'p' }, |
640 |
{ 0, '\0' } |
641 |
}; |
642 |
|
643 |
static void |
644 |
set_final_mode(struct Mode *mode, struct Mode *oldmode) |
645 |
{ |
646 |
char *pbuf = parabuf; |
647 |
int len; |
648 |
int i; |
649 |
|
650 |
*mbuf++ = '-'; |
651 |
|
652 |
for (i = 0; flags[i].letter; i++) |
653 |
{ |
654 |
if ((flags[i].mode & oldmode->mode) && |
655 |
!(flags[i].mode & mode->mode)) |
656 |
*mbuf++ = flags[i].letter; |
657 |
} |
658 |
|
659 |
if (oldmode->limit != 0 && mode->limit == 0) |
660 |
*mbuf++ = 'l'; |
661 |
|
662 |
if (oldmode->key[0] && !mode->key[0]) |
663 |
{ |
664 |
*mbuf++ = 'k'; |
665 |
len = ircsprintf(pbuf, "%s ", oldmode->key); |
666 |
pbuf += len; |
667 |
pargs++; |
668 |
} |
669 |
|
670 |
if (*(mbuf-1) == '-') |
671 |
*(mbuf-1) = '+'; |
672 |
else |
673 |
*mbuf++ = '+'; |
674 |
|
675 |
for (i = 0; flags[i].letter; i++) |
676 |
{ |
677 |
if ((flags[i].mode & mode->mode) && |
678 |
!(flags[i].mode & oldmode->mode)) |
679 |
*mbuf++ = flags[i].letter; |
680 |
} |
681 |
|
682 |
if (mode->limit != 0 && oldmode->limit != mode->limit) |
683 |
{ |
684 |
*mbuf++ = 'l'; |
685 |
len = ircsprintf(pbuf, "%d ", mode->limit); |
686 |
pbuf += len; |
687 |
pargs++; |
688 |
} |
689 |
|
690 |
if (mode->key[0] && strcmp(oldmode->key, mode->key)) |
691 |
{ |
692 |
*mbuf++ = 'k'; |
693 |
len = ircsprintf(pbuf, "%s ", mode->key); |
694 |
pbuf += len; |
695 |
pargs++; |
696 |
} |
697 |
if (*(mbuf-1) == '+') |
698 |
*(mbuf-1) = '\0'; |
699 |
else |
700 |
*mbuf = '\0'; |
701 |
} |
702 |
|
703 |
/* remove_our_modes() |
704 |
* |
705 |
* inputs - pointer to channel to remove modes from |
706 |
* - client pointer |
707 |
* output - NONE |
708 |
* side effects - Go through the local members, remove all their |
709 |
* chanop modes etc., this side lost the TS. |
710 |
*/ |
711 |
static void |
712 |
remove_our_modes(struct Channel *chptr, struct Client *source_p) |
713 |
{ |
714 |
remove_a_mode(chptr, source_p, CHFL_CHANOP, 'o'); |
715 |
#ifdef HALFOPS |
716 |
remove_a_mode(chptr, source_p, CHFL_HALFOP, 'h'); |
717 |
#endif |
718 |
remove_a_mode(chptr, source_p, CHFL_VOICE, 'v'); |
719 |
} |
720 |
|
721 |
/* remove_a_mode() |
722 |
* |
723 |
* inputs - pointer to channel |
724 |
* - server or client removing the mode |
725 |
* - mask o/h/v mask to be removed |
726 |
* - flag o/h/v to be removed |
727 |
* output - NONE |
728 |
* side effects - remove ONE mode from all members of a channel |
729 |
*/ |
730 |
static void |
731 |
remove_a_mode(struct Channel *chptr, struct Client *source_p, |
732 |
int mask, char flag) |
733 |
{ |
734 |
dlink_node *ptr; |
735 |
struct Membership *ms; |
736 |
char lmodebuf[MODEBUFLEN]; |
737 |
char *sp=sendbuf; |
738 |
const char *lpara[MAXMODEPARAMS]; |
739 |
int count = 0; |
740 |
int i; |
741 |
int l; |
742 |
|
743 |
mbuf = lmodebuf; |
744 |
*mbuf++ = '-'; |
745 |
*sp = '\0'; |
746 |
|
747 |
DLINK_FOREACH(ptr, chptr->members.head) |
748 |
{ |
749 |
ms = ptr->data; |
750 |
|
751 |
if ((ms->flags & mask) == 0) |
752 |
continue; |
753 |
|
754 |
ms->flags &= ~mask; |
755 |
|
756 |
lpara[count++] = ms->client_p->name; |
757 |
|
758 |
*mbuf++ = flag; |
759 |
|
760 |
if (count >= MAXMODEPARAMS) |
761 |
{ |
762 |
for(i = 0; i < MAXMODEPARAMS; i++) |
763 |
{ |
764 |
l = ircsprintf(sp, " %s", lpara[i]); |
765 |
sp += l; |
766 |
} |
767 |
|
768 |
*mbuf = '\0'; |
769 |
sendto_channel_local(ALL_MEMBERS, NO, chptr, |
770 |
":%s MODE %s %s%s", |
771 |
(IsHidden(source_p) || |
772 |
ConfigServerHide.hide_servers) ? |
773 |
me.name : source_p->name, |
774 |
chptr->chname, lmodebuf, sendbuf); |
775 |
mbuf = lmodebuf; |
776 |
*mbuf++ = '-'; |
777 |
count = 0; |
778 |
sp = sendbuf; |
779 |
*sp = '\0'; |
780 |
} |
781 |
} |
782 |
|
783 |
if (count != 0) |
784 |
{ |
785 |
*mbuf = '\0'; |
786 |
for(i = 0; i < count; i++) |
787 |
{ |
788 |
l = ircsprintf(sp, " %s", lpara[i]); |
789 |
sp += l; |
790 |
} |
791 |
sendto_channel_local(ALL_MEMBERS, NO, chptr, |
792 |
":%s MODE %s %s%s", |
793 |
(IsHidden(source_p) || ConfigServerHide.hide_servers) ? |
794 |
me.name : source_p->name, |
795 |
chptr->chname, lmodebuf, sendbuf); |
796 |
} |
797 |
} |
798 |
|
799 |
/* remove_ban_list() |
800 |
* |
801 |
* inputs - channel, source, list to remove, char of mode, caps required |
802 |
* outputs - none |
803 |
* side effects - given ban list is removed, modes are sent to local clients and |
804 |
* non-ts6 servers linked through another uplink other than source_p |
805 |
*/ |
806 |
static void |
807 |
remove_ban_list(struct Channel *chptr, struct Client *source_p, |
808 |
dlink_list *list, char c, int cap) |
809 |
{ |
810 |
char lmodebuf[MODEBUFLEN]; |
811 |
char lparabuf[IRCD_BUFSIZE]; |
812 |
struct Ban *banptr = NULL; |
813 |
dlink_node *ptr = NULL; |
814 |
dlink_node *next_ptr = NULL; |
815 |
char *pbuf = NULL; |
816 |
int count = 0; |
817 |
int cur_len, mlen, plen; |
818 |
|
819 |
pbuf = lparabuf; |
820 |
|
821 |
cur_len = mlen = ircsprintf(lmodebuf, ":%s MODE %s -", |
822 |
source_p->name, chptr->chname); |
823 |
mbuf = lmodebuf + mlen; |
824 |
|
825 |
DLINK_FOREACH_SAFE(ptr, next_ptr, list->head) |
826 |
{ |
827 |
banptr = ptr->data; |
828 |
|
829 |
plen = banptr->len + 4; /* another +b and "!@ " */ |
830 |
if (count >= MAXMODEPARAMS || |
831 |
(cur_len + 1 /* space between */ + (plen - 1)) > IRCD_BUFSIZE - 2) |
832 |
{ |
833 |
/* NUL-terminate and remove trailing space */ |
834 |
*mbuf = *(pbuf - 1) = '\0'; |
835 |
sendto_channel_local(ALL_MEMBERS, NO, chptr, "%s %s", |
836 |
lmodebuf, lparabuf); |
837 |
sendto_server(source_p, chptr, cap, CAP_TS6, |
838 |
"%s %s", lmodebuf, lparabuf); |
839 |
|
840 |
cur_len = mlen; |
841 |
mbuf = lmodebuf + mlen; |
842 |
pbuf = lparabuf; |
843 |
count = 0; |
844 |
} |
845 |
|
846 |
*mbuf++ = c; |
847 |
cur_len += plen; |
848 |
pbuf += ircsprintf(pbuf, "%s!%s@%s ", banptr->name, banptr->username, |
849 |
banptr->host); |
850 |
++count; |
851 |
|
852 |
remove_ban(banptr, list); |
853 |
} |
854 |
|
855 |
*mbuf = *(pbuf - 1) = '\0'; |
856 |
sendto_channel_local(ALL_MEMBERS, NO, chptr, "%s %s", lmodebuf, lparabuf); |
857 |
sendto_server(source_p, chptr, cap, CAP_TS6, |
858 |
"%s %s", lmodebuf, lparabuf); |
859 |
} |