]>
Commit | Line | Data |
---|---|---|
189935b1 | 1 | /* |
2 | * IRC - Internet Relay Chat, ircd/m_burst.c | |
3 | * Copyright (C) 1990 Jarkko Oikarinen and | |
4 | * University of Oulu, Computing Center | |
5 | * | |
6 | * See file AUTHORS in IRC package for additional names of | |
7 | * the programmers. | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License as published by | |
11 | * the Free Software Foundation; either version 1, or (at your option) | |
12 | * any later version. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | * GNU General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License | |
20 | * along with this program; if not, write to the Free Software | |
21 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
22 | * | |
37d25209 | 23 | * $Id: m_burst.c,v 1.40.2.2 2006/01/12 03:02:50 entrope Exp $ |
189935b1 | 24 | */ |
25 | ||
26 | /* | |
27 | * m_functions execute protocol messages on this server: | |
28 | * | |
29 | * cptr is always NON-NULL, pointing to a *LOCAL* client | |
30 | * structure (with an open socket connected!). This | |
31 | * identifies the physical socket where the message | |
32 | * originated (or which caused the m_function to be | |
33 | * executed--some m_functions may call others...). | |
34 | * | |
35 | * sptr is the source of the message, defined by the | |
36 | * prefix part of the message if present. If not | |
37 | * or prefix not found, then sptr==cptr. | |
38 | * | |
39 | * (!IsServer(cptr)) => (cptr == sptr), because | |
40 | * prefixes are taken *only* from servers... | |
41 | * | |
42 | * (IsServer(cptr)) | |
43 | * (sptr == cptr) => the message didn't | |
44 | * have the prefix. | |
45 | * | |
46 | * (sptr != cptr && IsServer(sptr) means | |
47 | * the prefix specified servername. (?) | |
48 | * | |
49 | * (sptr != cptr && !IsServer(sptr) means | |
50 | * that message originated from a remote | |
51 | * user (not local). | |
52 | * | |
53 | * combining | |
54 | * | |
55 | * (!IsServer(sptr)) means that, sptr can safely | |
56 | * taken as defining the target structure of the | |
57 | * message in this server. | |
58 | * | |
59 | * *Always* true (if 'parse' and others are working correct): | |
60 | * | |
61 | * 1) sptr->from == cptr (note: cptr->from == cptr) | |
62 | * | |
63 | * 2) MyConnect(sptr) <=> sptr == cptr (e.g. sptr | |
64 | * *cannot* be a local connection, unless it's | |
65 | * actually cptr!). [MyConnect(x) should probably | |
66 | * be defined as (x == x->from) --msa ] | |
67 | * | |
68 | * parc number of variable parameter strings (if zero, | |
69 | * parv is allowed to be NULL) | |
70 | * | |
71 | * parv a NULL terminated list of parameter pointers, | |
72 | * | |
73 | * parv[0], sender (prefix string), if not present | |
74 | * this points to an empty string. | |
75 | * parv[1]...parv[parc-1] | |
76 | * pointers to additional parameters | |
77 | * parv[parc] == NULL, *always* | |
78 | * | |
79 | * note: it is guaranteed that parv[0]..parv[parc-1] are all | |
80 | * non-NULL pointers. | |
81 | */ | |
82 | #include "config.h" | |
83 | ||
84 | #include "channel.h" | |
85 | #include "client.h" | |
86 | #include "hash.h" | |
87 | #include "ircd.h" | |
88 | #include "ircd_alloc.h" | |
89 | #include "ircd_features.h" | |
90 | #include "ircd_log.h" | |
91 | #include "ircd_reply.h" | |
92 | #include "ircd_string.h" | |
93 | #include "list.h" | |
94 | #include "match.h" | |
95 | #include "msg.h" | |
96 | #include "numeric.h" | |
97 | #include "numnicks.h" | |
98 | #include "s_conf.h" | |
99 | #include "s_misc.h" | |
100 | #include "send.h" | |
101 | #include "struct.h" | |
102 | #include "ircd_snprintf.h" | |
103 | ||
104 | /* #include <assert.h> -- Now using assert in ircd_log.h */ | |
105 | #include <stdlib.h> | |
106 | #include <string.h> | |
107 | #include <ctype.h> | |
108 | ||
109 | static int | |
110 | netride_modes(int parc, char **parv, const char *curr_key) | |
111 | { | |
112 | char *modes = parv[0]; | |
113 | int result = 0; | |
114 | ||
115 | assert(modes && modes[0] == '+'); | |
116 | while (*modes) { | |
117 | switch (*modes++) { | |
118 | case 'i': | |
119 | result |= MODE_INVITEONLY; | |
120 | break; | |
121 | case 'k': | |
122 | if (strcmp(curr_key, *++parv)) | |
123 | result |= MODE_KEY; | |
124 | break; | |
125 | case 'l': | |
126 | ++parv; | |
127 | break; | |
128 | case 'r': | |
129 | result |= MODE_REGONLY; | |
130 | break; | |
131 | } | |
132 | } | |
133 | return result; | |
134 | } | |
135 | ||
136 | /* | |
137 | * ms_burst - server message handler | |
138 | * | |
139 | * -- by Run carlo@runaway.xs4all.nl december 1995 till march 1997 | |
140 | * | |
141 | * parv[0] = sender prefix | |
142 | * parv[1] = channel name | |
143 | * parv[2] = channel timestamp | |
144 | * The meaning of the following parv[]'s depend on their first character: | |
145 | * If parv[n] starts with a '+': | |
146 | * Net burst, additive modes | |
147 | * parv[n] = <mode> | |
148 | * parv[n+1] = <param> (optional) | |
149 | * parv[n+2] = <param> (optional) | |
150 | * If parv[n] starts with a '%', then n will be parc-1: | |
151 | * parv[n] = %<ban> <ban> <ban> ... | |
152 | * If parv[n] starts with another character: | |
153 | * parv[n] = <nick>[:<mode>],<nick>[:<mode>],... | |
154 | * where <mode> defines the mode and op-level | |
155 | * for nick and all following nicks until the | |
156 | * next <mode> field. | |
157 | * Digits in the <mode> field have of two meanings: | |
158 | * 1) if it is the first field in this BURST message | |
159 | * that contains digits, and/or when a 'v' is | |
160 | * present in the <mode>: | |
161 | * The absolute value of the op-level. | |
162 | * 2) if there are only digits in this field and | |
163 | * it is not the first field with digits: | |
164 | * An op-level increment relative to the previous | |
165 | * op-level. | |
166 | * First all modeless nicks must be emmitted, | |
167 | * then all combinations of modes without ops | |
168 | * (currently that is only 'v') followed by the same | |
169 | * series but then with ops (currently 'o','ov'). | |
170 | * | |
171 | * Example: | |
172 | * "A8 B #test 87654321 +ntkAl key secret 123 A8AAG,A8AAC:v,A8AAA:0,A8AAF:2,A8AAD,A8AAB:v1,A8AAE:1 :%ban1 ban2" | |
173 | * | |
174 | * <mode> list example: | |
175 | * | |
176 | * "xxx,sss:v,ttt,aaa:123,bbb,ccc:2,ddd,kkk:v2,lll:2,mmm" | |
177 | * | |
178 | * means | |
179 | * | |
180 | * xxx // first modeless nicks | |
181 | * sss +v // then opless nicks | |
182 | * ttt +v // no ":<mode>": everything stays the same | |
183 | * aaa -123 // first field with digit: absolute value | |
184 | * bbb -123 | |
185 | * ccc -125 // only digits, not first field: increment | |
186 | * ddd -125 | |
187 | * kkk -2 +v // field with a 'v': absolute value | |
188 | * lll -4 +v // only digits: increment | |
189 | * mmm -4 +v | |
190 | * | |
191 | * Anti net.ride code. | |
192 | * | |
193 | * When the channel already exist, and its TS is larger than | |
194 | * the TS in the BURST message, then we cancel all existing modes. | |
195 | * If its is smaller then the received BURST message is ignored. | |
196 | * If it's equal, then the received modes are just added. | |
197 | * | |
198 | * BURST is also accepted outside a netburst now because it | |
199 | * is sent upstream as reaction to a DESTRUCT message. For | |
200 | * these BURST messages it is possible that the listed channel | |
201 | * members are already joined. | |
202 | */ | |
203 | int ms_burst(struct Client *cptr, struct Client *sptr, int parc, char *parv[]) | |
204 | { | |
205 | struct ModeBuf modebuf, *mbuf = 0; | |
206 | struct Channel *chptr; | |
207 | time_t timestamp; | |
208 | struct Membership *member, *nmember; | |
209 | struct Ban *lp, **lp_p; | |
210 | unsigned int parse_flags = (MODE_PARSE_FORCE | MODE_PARSE_BURST); | |
211 | int param, nickpos = 0, banpos = 0; | |
212 | char modestr[BUFSIZE], nickstr[BUFSIZE], banstr[BUFSIZE]; | |
213 | ||
214 | if (parc < 3) | |
215 | return protocol_violation(sptr,"Too few parameters for BURST"); | |
216 | ||
217 | if (!(chptr = get_channel(sptr, parv[1], CGT_CREATE))) | |
218 | return 0; /* can't create the channel? */ | |
219 | ||
220 | timestamp = atoi(parv[2]); | |
221 | ||
37d25209 | 222 | if (chptr->creationtime) /* 0 for new (empty) channels, |
223 | i.e. when this server just restarted. */ | |
224 | { | |
225 | if (parc == 3) /* Zannel BURST? */ | |
226 | { | |
227 | /* An empty channel without +A set, will cause a BURST message | |
228 | with exactly 3 parameters (because all modes have been reset). | |
229 | If the timestamp on such channels is only a few seconds older | |
230 | from our own, then we ignore this burst: we do not deop our | |
231 | own side. | |
232 | Likewise, we expect the other (empty) side to copy our timestamp | |
233 | from our own BURST message, even though it is slightly larger. | |
234 | ||
235 | The reason for this is to allow people to join an empty | |
236 | non-A channel (a zannel) during a net.split, and not be | |
237 | deopped when the net reconnects (with another zannel). When | |
238 | someone joins a split zannel, their side increments the TS by one. | |
239 | If they cycle a few times then we still don't have a reason to | |
240 | deop them. Theoretically I see no reason not to accept ANY timestamp, | |
241 | but to be sure, we only accept timestamps that are just a few | |
242 | seconds off (one second for each time they cycled the channel). */ | |
243 | ||
244 | /* Don't even deop users who cycled four times during the net.break. */ | |
245 | if (timestamp < chptr->creationtime && | |
246 | chptr->creationtime <= timestamp + 4 && | |
247 | chptr->users != 0) /* Only do this when WE have users, so that | |
248 | if we do this the BURST that we sent has | |
249 | parc > 3 and the other side will use the | |
250 | test below: */ | |
251 | timestamp = chptr->creationtime; /* Do not deop our side. */ | |
252 | } | |
253 | else if (chptr->creationtime < timestamp && | |
254 | timestamp <= chptr->creationtime + 4 && | |
255 | chptr->users == 0) | |
256 | { | |
257 | /* If one side of the net.junction does the above | |
258 | timestamp = chptr->creationtime, then the other | |
259 | side must do this: */ | |
260 | chptr->creationtime = timestamp; /* Use the same TS on both sides. */ | |
261 | } | |
262 | /* In more complex cases, we might still end up with a | |
263 | creationtime desync of a few seconds, but that should | |
264 | be synced automatically rather quickly (every JOIN | |
265 | caries a timestamp and will sync it; modes by users do | |
266 | not carry timestamps and are accepted regardless). | |
267 | Only when nobody joins the channel on the side with | |
268 | the oldest timestamp before a new net.break occurs | |
269 | precisely inbetween the desync, an unexpected bounce | |
270 | might happen on reconnect. */ | |
271 | } | |
272 | ||
189935b1 | 273 | if (!chptr->creationtime || chptr->creationtime > timestamp) { |
274 | /* | |
275 | * Kick local members if channel is +i or +k and our TS was larger | |
276 | * than the burst TS (anti net.ride). The modes hack is here because | |
277 | * we have to do this before mode_parse, as chptr may go away. | |
278 | */ | |
279 | for (param = 3; param < parc; param++) | |
280 | { | |
281 | int check_modes; | |
282 | if (parv[param][0] != '+') | |
283 | continue; | |
284 | check_modes = netride_modes(parc - param, parv + param, chptr->mode.key); | |
285 | if (check_modes) | |
286 | { | |
287 | /* Clear any outstanding rogue invites */ | |
288 | mode_invite_clear(chptr); | |
289 | for (member = chptr->members; member; member = nmember) | |
290 | { | |
291 | nmember = member->next_member; | |
292 | if (!MyUser(member->user) || IsZombie(member)) | |
293 | continue; | |
294 | /* Kick as netrider if key mismatch *or* remote channel is | |
295 | * +i (unless user is an oper) *or* remote channel is +r | |
296 | * (unless user has an account). | |
297 | */ | |
298 | if (!(check_modes & MODE_KEY) | |
299 | && (!(check_modes & MODE_INVITEONLY) || IsAnOper(member->user)) | |
300 | && (!(check_modes & MODE_REGONLY) || IsAccount(member->user))) | |
301 | continue; | |
302 | sendcmdto_serv_butone(&me, CMD_KICK, NULL, "%H %C :Net Rider", chptr, member->user); | |
303 | sendcmdto_channel_butserv_butone(&his, CMD_KICK, chptr, NULL, 0, "%H %C :Net Rider", chptr, member->user); | |
304 | make_zombie(member, member->user, &me, &me, chptr); | |
305 | } | |
306 | } | |
307 | break; | |
308 | } | |
309 | ||
310 | /* If the channel had only locals, it went away by now. */ | |
311 | if (!(chptr = get_channel(sptr, parv[1], CGT_CREATE))) | |
312 | return 0; /* can't create the channel? */ | |
313 | } | |
314 | ||
315 | /* turn off burst joined flag */ | |
316 | for (member = chptr->members; member; member = member->next_member) | |
317 | member->status &= ~(CHFL_BURST_JOINED|CHFL_BURST_ALREADY_OPPED|CHFL_BURST_ALREADY_VOICED); | |
318 | ||
319 | if (!chptr->creationtime) /* mark channel as created during BURST */ | |
320 | chptr->mode.mode |= MODE_BURSTADDED; | |
321 | ||
322 | /* new channel or an older one */ | |
323 | if (!chptr->creationtime || chptr->creationtime > timestamp) { | |
324 | chptr->creationtime = timestamp; | |
325 | ||
326 | modebuf_init(mbuf = &modebuf, &me, cptr, chptr, | |
327 | MODEBUF_DEST_CHANNEL | MODEBUF_DEST_NOKEY); | |
328 | modebuf_mode(mbuf, MODE_DEL | chptr->mode.mode); /* wipeout modes */ | |
329 | chptr->mode.mode &= MODE_BURSTADDED | MODE_WASDELJOINS; | |
330 | ||
331 | /* wipe out modes not represented in chptr->mode.mode */ | |
332 | if (chptr->mode.limit) { | |
333 | modebuf_mode_uint(mbuf, MODE_DEL | MODE_LIMIT, chptr->mode.limit); | |
334 | chptr->mode.limit = 0; | |
335 | } | |
336 | if (chptr->mode.key[0]) { | |
337 | modebuf_mode_string(mbuf, MODE_DEL | MODE_KEY, chptr->mode.key, 0); | |
338 | chptr->mode.key[0] = '\0'; | |
339 | } | |
340 | if (chptr->mode.upass[0]) { | |
341 | modebuf_mode_string(mbuf, MODE_DEL | MODE_UPASS, chptr->mode.upass, 0); | |
342 | chptr->mode.upass[0] = '\0'; | |
343 | } | |
344 | if (chptr->mode.apass[0]) { | |
345 | modebuf_mode_string(mbuf, MODE_DEL | MODE_APASS, chptr->mode.apass, 0); | |
346 | chptr->mode.apass[0] = '\0'; | |
347 | } | |
348 | ||
349 | parse_flags |= (MODE_PARSE_SET | MODE_PARSE_WIPEOUT); /* wipeout keys */ | |
350 | ||
351 | /* mark bans for wipeout */ | |
352 | for (lp = chptr->banlist; lp; lp = lp->next) | |
353 | lp->flags |= BAN_BURST_WIPEOUT; | |
354 | ||
355 | /* clear topic set by netrider (if set) */ | |
356 | if (*chptr->topic) { | |
357 | *chptr->topic = '\0'; | |
358 | *chptr->topic_nick = '\0'; | |
359 | chptr->topic_time = 0; | |
360 | sendcmdto_channel_butserv_butone(&his, CMD_TOPIC, chptr, NULL, 0, | |
361 | "%H :%s", chptr, chptr->topic); | |
362 | } | |
363 | } else if (chptr->creationtime == timestamp) { | |
364 | modebuf_init(mbuf = &modebuf, &me, cptr, chptr, | |
365 | MODEBUF_DEST_CHANNEL | MODEBUF_DEST_NOKEY); | |
366 | ||
367 | parse_flags |= MODE_PARSE_SET; /* set new modes */ | |
368 | } | |
369 | ||
370 | param = 3; /* parse parameters */ | |
371 | while (param < parc) { | |
372 | switch (*parv[param]) { | |
373 | case '+': /* parameter introduces a mode string */ | |
374 | param += mode_parse(mbuf, cptr, sptr, chptr, parc - param, | |
375 | parv + param, parse_flags, NULL); | |
376 | break; | |
377 | ||
378 | case '%': /* parameter contains bans */ | |
379 | if (parse_flags & MODE_PARSE_SET) { | |
380 | char *banlist = parv[param] + 1, *p = 0, *ban, *ptr; | |
381 | struct Ban *newban; | |
382 | ||
383 | for (ban = ircd_strtok(&p, banlist, " "); ban; | |
384 | ban = ircd_strtok(&p, 0, " ")) { | |
385 | ban = collapse(pretty_mask(ban)); | |
386 | ||
387 | /* | |
388 | * Yeah, we should probably do this elsewhere, and make it better | |
389 | * and more general; this will hold until we get there, though. | |
390 | * I dislike the current add_banid API... -Kev | |
391 | * | |
392 | * I wish there were a better algo. for this than the n^2 one | |
393 | * shown below *sigh* | |
394 | */ | |
395 | for (lp = chptr->banlist; lp; lp = lp->next) { | |
396 | if (!ircd_strcmp(lp->banstr, ban)) { | |
397 | ban = 0; /* don't add ban */ | |
398 | lp->flags &= ~BAN_BURST_WIPEOUT; /* not wiping out */ | |
399 | break; /* new ban already existed; don't even repropagate */ | |
400 | } else if (!(lp->flags & BAN_BURST_WIPEOUT) && | |
401 | !mmatch(lp->banstr, ban)) { | |
402 | ban = 0; /* don't add ban unless wiping out bans */ | |
403 | break; /* new ban is encompassed by an existing one; drop */ | |
404 | } else if (!mmatch(ban, lp->banstr)) | |
405 | lp->flags |= BAN_OVERLAPPED; /* remove overlapping ban */ | |
406 | ||
407 | if (!lp->next) | |
408 | break; | |
409 | } | |
410 | ||
411 | if (ban) { /* add the new ban to the end of the list */ | |
412 | /* Build ban buffer */ | |
413 | if (!banpos) { | |
414 | banstr[banpos++] = ' '; | |
415 | banstr[banpos++] = ':'; | |
416 | banstr[banpos++] = '%'; | |
417 | } else | |
418 | banstr[banpos++] = ' '; | |
419 | for (ptr = ban; *ptr; ptr++) /* add ban to buffer */ | |
420 | banstr[banpos++] = *ptr; | |
421 | ||
422 | newban = make_ban(ban); /* create new ban */ | |
423 | strcpy(newban->who, "*"); | |
424 | newban->when = TStime(); | |
425 | newban->flags |= BAN_BURSTED; | |
426 | newban->next = 0; | |
427 | if (lp) | |
428 | lp->next = newban; /* link it in */ | |
429 | else | |
430 | chptr->banlist = newban; | |
431 | } | |
432 | } | |
433 | } | |
434 | param++; /* look at next param */ | |
435 | break; | |
436 | ||
437 | default: /* parameter contains clients */ | |
438 | { | |
439 | struct Client *acptr; | |
440 | char *nicklist = parv[param], *p = 0, *nick, *ptr; | |
441 | int current_mode, last_mode, base_mode; | |
442 | int oplevel = -1; /* Mark first field with digits: means the same as 'o' (but with level). */ | |
443 | int last_oplevel = 0; | |
444 | struct Membership* member; | |
445 | ||
446 | base_mode = CHFL_DEOPPED | CHFL_BURST_JOINED; | |
447 | if (chptr->mode.mode & MODE_DELJOINS) | |
448 | base_mode |= CHFL_DELAYED; | |
449 | current_mode = last_mode = base_mode; | |
450 | ||
451 | for (nick = ircd_strtok(&p, nicklist, ","); nick; | |
452 | nick = ircd_strtok(&p, 0, ",")) { | |
453 | ||
454 | if ((ptr = strchr(nick, ':'))) { /* new flags; deal */ | |
455 | *ptr++ = '\0'; | |
456 | ||
457 | if (parse_flags & MODE_PARSE_SET) { | |
458 | int current_mode_needs_reset; | |
459 | for (current_mode_needs_reset = 1; *ptr; ptr++) { | |
460 | if (*ptr == 'o') { /* has oper status */ | |
461 | /* | |
462 | * An 'o' is pre-oplevel protocol, so this is only for | |
463 | * backwards compatibility. Give them an op-level of | |
464 | * MAXOPLEVEL so everyone can deop them. | |
465 | */ | |
466 | oplevel = MAXOPLEVEL; | |
467 | if (current_mode_needs_reset) { | |
468 | current_mode = base_mode; | |
469 | current_mode_needs_reset = 0; | |
470 | } | |
471 | current_mode = (current_mode & ~(CHFL_DEOPPED | CHFL_DELAYED)) | CHFL_CHANOP; | |
472 | } | |
473 | else if (*ptr == 'v') { /* has voice status */ | |
474 | if (current_mode_needs_reset) { | |
475 | current_mode = base_mode; | |
476 | current_mode_needs_reset = 0; | |
477 | } | |
478 | current_mode = (current_mode & ~CHFL_DELAYED) | CHFL_VOICE; | |
479 | oplevel = -1; /* subsequent digits are an absolute op-level value. */ | |
480 | } | |
37d25209 | 481 | else if (IsDigit(*ptr)) { |
189935b1 | 482 | int level_increment = 0; |
483 | if (oplevel == -1) { /* op-level is absolute value? */ | |
484 | if (current_mode_needs_reset) { | |
485 | current_mode = base_mode; | |
486 | current_mode_needs_reset = 0; | |
487 | } | |
488 | oplevel = 0; | |
489 | } | |
490 | current_mode = (current_mode & ~(CHFL_DEOPPED | CHFL_DELAYED)) | CHFL_CHANOP; | |
491 | do { | |
492 | level_increment = 10 * level_increment + *ptr++ - '0'; | |
37d25209 | 493 | } while (IsDigit(*ptr)); |
189935b1 | 494 | oplevel += level_increment; |
495 | } | |
496 | else /* I don't recognize that flag */ | |
497 | break; /* so stop processing */ | |
498 | } | |
499 | } | |
500 | } | |
501 | ||
502 | if (!(acptr = findNUser(nick)) || cli_from(acptr) != cptr) | |
503 | continue; /* ignore this client */ | |
504 | ||
505 | /* Build nick buffer */ | |
506 | nickstr[nickpos] = nickpos ? ',' : ' '; /* first char */ | |
507 | nickpos++; | |
508 | ||
509 | for (ptr = nick; *ptr; ptr++) /* store nick */ | |
510 | nickstr[nickpos++] = *ptr; | |
511 | ||
512 | if (current_mode != last_mode) { /* if mode changed... */ | |
513 | last_mode = current_mode; | |
514 | last_oplevel = oplevel; | |
515 | ||
516 | nickstr[nickpos++] = ':'; /* add a specifier */ | |
517 | if (current_mode & CHFL_VOICE) | |
518 | nickstr[nickpos++] = 'v'; | |
519 | if (current_mode & CHFL_CHANOP) | |
520 | { | |
521 | if (chptr->mode.apass[0]) | |
522 | nickpos += ircd_snprintf(0, nickstr + nickpos, sizeof(nickstr) - nickpos, "%u", oplevel); | |
523 | else | |
524 | nickstr[nickpos++] = 'o'; | |
525 | } | |
526 | } else if (current_mode & CHFL_CHANOP && oplevel != last_oplevel) { /* if just op level changed... */ | |
527 | nickstr[nickpos++] = ':'; /* add a specifier */ | |
528 | nickpos += ircd_snprintf(0, nickstr + nickpos, sizeof(nickstr) - nickpos, "%u", oplevel - last_oplevel); | |
529 | last_oplevel = oplevel; | |
530 | } | |
531 | ||
532 | if (IsBurst(sptr) || !(member = find_member_link(chptr, acptr))) | |
533 | { | |
534 | add_user_to_channel(chptr, acptr, current_mode, oplevel); | |
535 | if (!(current_mode & CHFL_DELAYED)) | |
536 | sendcmdto_channel_butserv_butone(acptr, CMD_JOIN, chptr, NULL, 0, "%H", chptr); | |
537 | } | |
538 | else | |
539 | { | |
540 | /* The member was already joined (either by CREATE or JOIN). | |
541 | Remember the current mode. */ | |
542 | if (member->status & CHFL_CHANOP) | |
543 | member->status |= CHFL_BURST_ALREADY_OPPED; | |
544 | if (member->status & CHFL_VOICE) | |
545 | member->status |= CHFL_BURST_ALREADY_VOICED; | |
546 | /* Synchronize with the burst. */ | |
547 | member->status |= CHFL_BURST_JOINED | (current_mode & (CHFL_CHANOP|CHFL_VOICE)); | |
548 | SetOpLevel(member, oplevel); | |
549 | } | |
550 | } | |
551 | } | |
552 | param++; | |
553 | break; | |
554 | } /* switch (*parv[param]) */ | |
555 | } /* while (param < parc) */ | |
556 | ||
557 | nickstr[nickpos] = '\0'; | |
558 | banstr[banpos] = '\0'; | |
559 | ||
560 | if (parse_flags & MODE_PARSE_SET) { | |
561 | modebuf_extract(mbuf, modestr + 1); /* for sending BURST onward */ | |
562 | modestr[0] = modestr[1] ? ' ' : '\0'; | |
563 | } else | |
564 | modestr[0] = '\0'; | |
565 | ||
566 | sendcmdto_serv_butone(sptr, CMD_BURST, cptr, "%H %Tu%s%s%s", chptr, | |
567 | chptr->creationtime, modestr, nickstr, banstr); | |
568 | ||
569 | if (parse_flags & MODE_PARSE_WIPEOUT || banpos) | |
570 | mode_ban_invalidate(chptr); | |
571 | ||
572 | if (parse_flags & MODE_PARSE_SET) { /* any modes changed? */ | |
573 | /* first deal with channel members */ | |
574 | for (member = chptr->members; member; member = member->next_member) { | |
575 | if (member->status & CHFL_BURST_JOINED) { /* joined during burst */ | |
576 | if ((member->status & CHFL_CHANOP) && !(member->status & CHFL_BURST_ALREADY_OPPED)) | |
577 | modebuf_mode_client(mbuf, MODE_ADD | CHFL_CHANOP, member->user, OpLevel(member)); | |
578 | if ((member->status & CHFL_VOICE) && !(member->status & CHFL_BURST_ALREADY_VOICED)) | |
579 | modebuf_mode_client(mbuf, MODE_ADD | CHFL_VOICE, member->user, OpLevel(member)); | |
580 | } else if (parse_flags & MODE_PARSE_WIPEOUT) { /* wipeout old ops */ | |
581 | if (member->status & CHFL_CHANOP) | |
582 | modebuf_mode_client(mbuf, MODE_DEL | CHFL_CHANOP, member->user, OpLevel(member)); | |
583 | if (member->status & CHFL_VOICE) | |
584 | modebuf_mode_client(mbuf, MODE_DEL | CHFL_VOICE, member->user, OpLevel(member)); | |
585 | member->status = (member->status | |
586 | & ~(CHFL_CHANNEL_MANAGER | CHFL_CHANOP | CHFL_VOICE)) | |
587 | | CHFL_DEOPPED; | |
588 | } | |
589 | } | |
590 | ||
591 | /* Now deal with channel bans */ | |
592 | lp_p = &chptr->banlist; | |
593 | while (*lp_p) { | |
594 | lp = *lp_p; | |
595 | ||
596 | /* remove ban from channel */ | |
597 | if (lp->flags & (BAN_OVERLAPPED | BAN_BURST_WIPEOUT)) { | |
598 | char *bandup; | |
599 | DupString(bandup, lp->banstr); | |
600 | modebuf_mode_string(mbuf, MODE_DEL | MODE_BAN, | |
601 | bandup, 1); | |
602 | *lp_p = lp->next; /* clip out of list */ | |
603 | free_ban(lp); | |
604 | continue; | |
605 | } else if (lp->flags & BAN_BURSTED) /* add ban to channel */ | |
606 | modebuf_mode_string(mbuf, MODE_ADD | MODE_BAN, | |
607 | lp->banstr, 0); /* don't free banstr */ | |
608 | ||
609 | lp->flags &= BAN_IPMASK; /* reset the flag */ | |
610 | lp_p = &(*lp_p)->next; | |
611 | } | |
612 | } | |
613 | ||
614 | return mbuf ? modebuf_flush(mbuf) : 0; | |
615 | } |