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189935b1 | 1 | /* |
2 | * IRC - Internet Relay Chat, common/send.c | |
3 | * Copyright (C) 1990 Jarkko Oikarinen and | |
4 | * University of Oulu, Computing Center | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 1, or (at your option) | |
9 | * any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, write to the Free Software | |
18 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
19 | */ | |
20 | /** @file | |
21 | * @brief Send messages to certain targets. | |
22 | * @version $Id: send.c,v 1.55 2004/12/16 03:28:50 entrope Exp $ | |
23 | */ | |
24 | #include "config.h" | |
25 | ||
26 | #include "send.h" | |
27 | #include "channel.h" | |
28 | #include "class.h" | |
29 | #include "client.h" | |
30 | #include "ircd.h" | |
31 | #include "ircd_features.h" | |
32 | #include "ircd_log.h" | |
33 | #include "ircd_snprintf.h" | |
34 | #include "ircd_string.h" | |
35 | #include "list.h" | |
36 | #include "match.h" | |
37 | #include "msg.h" | |
38 | #include "numnicks.h" | |
39 | #include "parse.h" | |
40 | #include "s_bsd.h" | |
41 | #include "s_debug.h" | |
42 | #include "s_misc.h" | |
43 | #include "s_user.h" | |
44 | #include "struct.h" | |
45 | #include "sys.h" | |
46 | ||
47 | /* #include <assert.h> -- Now using assert in ircd_log.h */ | |
48 | #include <stdio.h> | |
49 | #include <string.h> | |
50 | ||
51 | /** Last used marker value. */ | |
52 | static int sentalong_marker; | |
53 | /** Array of users with the corresponding server notice mask bit set. */ | |
54 | struct SLink *opsarray[32]; /* don't use highest bit unless you change | |
55 | atoi to strtoul in sendto_op_mask() */ | |
56 | /** Linked list of all connections with data queued to send. */ | |
57 | static struct Connection *send_queues; | |
58 | ||
59 | /* | |
60 | * dead_link | |
61 | * | |
62 | * An error has been detected. The link *must* be closed, | |
63 | * but *cannot* call ExitClient (m_bye) from here. | |
64 | * Instead, mark it with FLAG_DEADSOCKET. This should | |
65 | * generate ExitClient from the main loop. | |
66 | * | |
67 | * If 'notice' is not NULL, it is assumed to be a format | |
68 | * for a message to local opers. It can contain only one | |
69 | * '%s', which will be replaced by the sockhost field of | |
70 | * the failing link. | |
71 | * | |
72 | * Also, the notice is skipped for "uninteresting" cases, | |
73 | * like Persons and yet unknown connections... | |
74 | */ | |
75 | /** Mark a client as dead, even if they are not the current message source. | |
76 | * This is done by setting the DEADSOCKET flag on the user and letting the | |
77 | * main loop perform the actual exit logic. | |
78 | * @param[in,out] to Client being killed. | |
79 | * @param[in] notice Message for local opers. | |
80 | */ | |
81 | static void dead_link(struct Client *to, char *notice) | |
82 | { | |
83 | SetFlag(to, FLAG_DEADSOCKET); | |
84 | /* | |
85 | * If because of BUFFERPOOL problem then clean dbuf's now so that | |
86 | * notices don't hurt operators below. | |
87 | */ | |
88 | DBufClear(&(cli_recvQ(to))); | |
89 | MsgQClear(&(cli_sendQ(to))); | |
90 | client_drop_sendq(cli_connect(to)); | |
91 | ||
92 | /* | |
93 | * Keep a copy of the last comment, for later use... | |
94 | */ | |
95 | ircd_strncpy(cli_info(to), notice, REALLEN); | |
96 | ||
97 | if (!IsUser(to) && !IsUnknown(to) && !HasFlag(to, FLAG_CLOSING)) | |
98 | sendto_opmask_butone(0, SNO_OLDSNO, "%s for %s", cli_info(to), cli_name(to)); | |
99 | Debug((DEBUG_ERROR, cli_info(to))); | |
100 | } | |
101 | ||
102 | /** Test whether we can send to a client. | |
103 | * @param[in] to Client we want to send to. | |
104 | * @return Non-zero if we can send to the client. | |
105 | */ | |
106 | static int can_send(struct Client* to) | |
107 | { | |
108 | assert(0 != to); | |
109 | return (IsDead(to) || IsMe(to) || -1 == cli_fd(to)) ? 0 : 1; | |
110 | } | |
111 | ||
112 | /** Close the connection with the highest sendq. | |
113 | * This should be called when we need to free buffer memory. | |
114 | * @param[in] servers_too If non-zero, consider killing servers, too. | |
115 | */ | |
116 | void | |
117 | kill_highest_sendq(int servers_too) | |
118 | { | |
119 | int i; | |
120 | unsigned int highest_sendq = 0; | |
121 | struct Client *highest_client = 0; | |
122 | ||
123 | for (i = HighestFd; i >= 0; i--) | |
124 | { | |
125 | if (!LocalClientArray[i] || (!servers_too && cli_serv(LocalClientArray[i]))) | |
126 | continue; /* skip servers */ | |
127 | ||
128 | /* If this sendq is higher than one we last saw, remember it */ | |
129 | if (MsgQLength(&(cli_sendQ(LocalClientArray[i]))) > highest_sendq) | |
130 | { | |
131 | highest_client = LocalClientArray[i]; | |
132 | highest_sendq = MsgQLength(&(cli_sendQ(highest_client))); | |
133 | } | |
134 | } | |
135 | ||
136 | if (highest_client) | |
137 | dead_link(highest_client, "Buffer allocation error"); | |
138 | } | |
139 | ||
140 | /* | |
141 | * flush_connections | |
142 | * | |
143 | * Used to empty all output buffers for all connections. Should only | |
144 | * be called once per scan of connections. There should be a select in | |
145 | * here perhaps but that means either forcing a timeout or doing a poll. | |
146 | * When flushing, all we do is empty the obuffer array for each local | |
147 | * client and try to send it. if we cant send it, it goes into the sendQ | |
148 | * -avalon | |
149 | */ | |
150 | /** Flush data queued for one or all connections. | |
151 | * @param[in] cptr Client to flush (if NULL, do all). | |
152 | */ | |
153 | void flush_connections(struct Client* cptr) | |
154 | { | |
155 | if (cptr) { | |
156 | send_queued(cptr); | |
157 | } | |
158 | else { | |
159 | struct Connection* con; | |
160 | for (con = send_queues; con; con = con_next(con)) { | |
161 | assert(0 < MsgQLength(&(con_sendQ(con)))); | |
162 | send_queued(con_client(con)); | |
163 | } | |
164 | } | |
165 | } | |
166 | ||
167 | /* | |
168 | * send_queued | |
169 | * | |
170 | * This function is called from the main select-loop (or whatever) | |
171 | * when there is a chance that some output would be possible. This | |
172 | * attempts to empty the send queue as far as possible... | |
173 | */ | |
174 | /** Attempt to send data queued for a client. | |
175 | * @param[in] to Client to send data to. | |
176 | */ | |
177 | void send_queued(struct Client *to) | |
178 | { | |
179 | assert(0 != to); | |
180 | assert(0 != cli_local(to)); | |
181 | ||
182 | if (IsBlocked(to) || !can_send(to)) | |
183 | return; /* Don't bother */ | |
184 | ||
185 | while (MsgQLength(&(cli_sendQ(to))) > 0) { | |
186 | unsigned int len; | |
187 | ||
188 | if ((len = deliver_it(to, &(cli_sendQ(to))))) { | |
189 | msgq_delete(&(cli_sendQ(to)), len); | |
190 | cli_lastsq(to) = MsgQLength(&(cli_sendQ(to))) / 1024; | |
191 | if (IsBlocked(to)) { | |
192 | update_write(to); | |
193 | return; | |
194 | } | |
195 | } | |
196 | else { | |
197 | if (IsDead(to)) { | |
198 | char tmp[512]; | |
199 | sprintf(tmp,"Write error: %s",(strerror(cli_error(to))) ? (strerror(cli_error(to))) : "Unknown error" ); | |
200 | dead_link(to, tmp); | |
201 | } | |
202 | return; | |
203 | } | |
204 | } | |
205 | ||
206 | /* Ok, sendq is now empty... */ | |
207 | client_drop_sendq(cli_connect(to)); | |
208 | update_write(to); | |
209 | } | |
210 | ||
211 | /** Try to send a buffer to a client, queueing it if needed. | |
212 | * @param[in,out] to Client to send message to. | |
213 | * @param[in] buf Message to send. | |
214 | * @param[in] prio If non-zero, send as high priority. | |
215 | */ | |
216 | void send_buffer(struct Client* to, struct MsgBuf* buf, int prio) | |
217 | { | |
218 | assert(0 != to); | |
219 | assert(0 != buf); | |
220 | ||
221 | if (cli_from(to)) | |
222 | to = cli_from(to); | |
223 | ||
224 | if (!can_send(to)) | |
225 | /* | |
226 | * This socket has already been marked as dead | |
227 | */ | |
228 | return; | |
229 | ||
230 | if (MsgQLength(&(cli_sendQ(to))) > get_sendq(to)) { | |
231 | if (IsServer(to)) | |
232 | sendto_opmask_butone(0, SNO_OLDSNO, "Max SendQ limit exceeded for %C: " | |
233 | "%zu > %zu", to, MsgQLength(&(cli_sendQ(to))), | |
234 | get_sendq(to)); | |
235 | dead_link(to, "Max sendQ exceeded"); | |
236 | return; | |
237 | } | |
238 | ||
239 | Debug((DEBUG_SEND, "Sending [%p] to %s", buf, cli_name(to))); | |
240 | ||
241 | msgq_add(&(cli_sendQ(to)), buf, prio); | |
242 | client_add_sendq(cli_connect(to), &send_queues); | |
243 | update_write(to); | |
244 | ||
245 | /* | |
246 | * Update statistics. The following is slightly incorrect | |
247 | * because it counts messages even if queued, but bytes | |
248 | * only really sent. Queued bytes get updated in SendQueued. | |
249 | */ | |
250 | ++(cli_sendM(to)); | |
251 | ++(cli_sendM(&me)); | |
252 | /* | |
253 | * This little bit is to stop the sendQ from growing too large when | |
254 | * there is no need for it to. Thus we call send_queued() every time | |
255 | * 2k has been added to the queue since the last non-fatal write. | |
256 | * Also stops us from deliberately building a large sendQ and then | |
257 | * trying to flood that link with data (possible during the net | |
258 | * relinking done by servers with a large load). | |
259 | */ | |
260 | if (MsgQLength(&(cli_sendQ(to))) / 1024 > cli_lastsq(to)) | |
261 | send_queued(to); | |
262 | } | |
263 | ||
264 | /* | |
265 | * Send a msg to all ppl on servers/hosts that match a specified mask | |
266 | * (used for enhanced PRIVMSGs) | |
267 | * | |
268 | * addition -- Armin, 8jun90 (gruner@informatik.tu-muenchen.de) | |
269 | */ | |
270 | ||
271 | /** Check whether a client matches a target mask. | |
272 | * @param[in] from Client trying to send a message (ignored). | |
273 | * @param[in] one Client being considered as a target. | |
274 | * @param[in] mask Mask for matching against. | |
275 | * @param[in] what Type of match (either MATCH_HOST or MATCH_SERVER). | |
276 | * @return Non-zero if \a one matches, zero if not. | |
277 | */ | |
278 | static int match_it(struct Client *from, struct Client *one, const char *mask, int what) | |
279 | { | |
280 | switch (what) | |
281 | { | |
282 | case MATCH_HOST: | |
283 | return (match(mask, cli_user(one)->host) == 0 || | |
1d4df40c | 284 | ((HasHiddenHost(one) || HasSetHost(one)) && match(mask, cli_user(one)->realhost) == 0)); |
189935b1 | 285 | case MATCH_SERVER: |
286 | default: | |
287 | return (match(mask, cli_name(cli_user(one)->server)) == 0); | |
288 | } | |
289 | } | |
290 | ||
291 | /** Send an unprefixed line to a client. | |
292 | * @param[in] to Client receiving message. | |
293 | * @param[in] pattern Format string of message. | |
294 | */ | |
295 | void sendrawto_one(struct Client *to, const char *pattern, ...) | |
296 | { | |
297 | struct MsgBuf *mb; | |
298 | va_list vl; | |
299 | ||
300 | va_start(vl, pattern); | |
301 | mb = msgq_vmake(to, pattern, vl); | |
302 | va_end(vl); | |
303 | ||
304 | send_buffer(to, mb, 0); | |
305 | ||
306 | msgq_clean(mb); | |
307 | } | |
308 | ||
309 | /** Send a (prefixed) command to a single client. | |
310 | * @param[in] from Client sending the command. | |
311 | * @param[in] cmd Long name of command (used if \a to is a user). | |
312 | * @param[in] tok Short name of command (used if \a to is a server). | |
313 | * @param[in] to Destination of command. | |
314 | * @param[in] pattern Format string for command arguments. | |
315 | */ | |
316 | void sendcmdto_one(struct Client *from, const char *cmd, const char *tok, | |
317 | struct Client *to, const char *pattern, ...) | |
318 | { | |
319 | struct VarData vd; | |
320 | struct MsgBuf *mb; | |
321 | ||
322 | to = cli_from(to); | |
323 | ||
324 | vd.vd_format = pattern; /* set up the struct VarData for %v */ | |
325 | va_start(vd.vd_args, pattern); | |
326 | ||
327 | mb = msgq_make(to, "%:#C %s %v", from, IsServer(to) || IsMe(to) ? tok : cmd, | |
328 | &vd); | |
329 | ||
330 | va_end(vd.vd_args); | |
331 | ||
332 | send_buffer(to, mb, 0); | |
333 | ||
334 | msgq_clean(mb); | |
335 | } | |
336 | ||
337 | /** | |
338 | * Send a (prefixed) command to a single client in the priority queue. | |
339 | * @param[in] from Client sending the command. | |
340 | * @param[in] cmd Long name of command (used if \a to is a user). | |
341 | * @param[in] tok Short name of command (used if \a to is a server). | |
342 | * @param[in] to Destination of command. | |
343 | * @param[in] pattern Format string for command arguments. | |
344 | */ | |
345 | void sendcmdto_prio_one(struct Client *from, const char *cmd, const char *tok, | |
346 | struct Client *to, const char *pattern, ...) | |
347 | { | |
348 | struct VarData vd; | |
349 | struct MsgBuf *mb; | |
350 | ||
351 | to = cli_from(to); | |
352 | ||
353 | vd.vd_format = pattern; /* set up the struct VarData for %v */ | |
354 | va_start(vd.vd_args, pattern); | |
355 | ||
356 | mb = msgq_make(to, "%:#C %s %v", from, IsServer(to) || IsMe(to) ? tok : cmd, | |
357 | &vd); | |
358 | ||
359 | va_end(vd.vd_args); | |
360 | ||
361 | send_buffer(to, mb, 1); | |
362 | ||
363 | msgq_clean(mb); | |
364 | } | |
365 | ||
366 | /** | |
367 | * Send a (prefixed) command to all servers matching or not matching a | |
368 | * flag but one. | |
369 | * @param[in] from Client sending the command. | |
370 | * @param[in] cmd Long name of command (ignored). | |
371 | * @param[in] tok Short name of command. | |
372 | * @param[in] one Client direction to skip (or NULL). | |
373 | * @param[in] require Only send to servers with this Flag bit set. | |
374 | * @param[in] forbid Do not send to servers with this Flag bit set. | |
375 | * @param[in] pattern Format string for command arguments. | |
376 | */ | |
377 | void sendcmdto_flag_serv_butone(struct Client *from, const char *cmd, | |
378 | const char *tok, struct Client *one, | |
379 | int require, int forbid, | |
380 | const char *pattern, ...) | |
381 | { | |
382 | struct VarData vd; | |
383 | struct MsgBuf *mb; | |
384 | struct DLink *lp; | |
385 | ||
386 | vd.vd_format = pattern; /* set up the struct VarData for %v */ | |
387 | va_start(vd.vd_args, pattern); | |
388 | ||
389 | /* use token */ | |
390 | mb = msgq_make(&me, "%C %s %v", from, tok, &vd); | |
391 | va_end(vd.vd_args); | |
392 | ||
393 | /* send it to our downlinks */ | |
394 | for (lp = cli_serv(&me)->down; lp; lp = lp->next) { | |
395 | if (one && lp->value.cptr == cli_from(one)) | |
396 | continue; | |
397 | if ((require < FLAG_LAST_FLAG) && !HasFlag(lp->value.cptr, require)) | |
398 | continue; | |
399 | if ((forbid < FLAG_LAST_FLAG) && HasFlag(lp->value.cptr, forbid)) | |
400 | continue; | |
401 | send_buffer(lp->value.cptr, mb, 0); | |
402 | } | |
403 | ||
404 | msgq_clean(mb); | |
405 | } | |
406 | ||
407 | /** | |
408 | * Send a (prefixed) command to all servers but one. | |
409 | * @param[in] from Client sending the command. | |
410 | * @param[in] cmd Long name of command (ignored). | |
411 | * @param[in] tok Short name of command. | |
412 | * @param[in] one Client direction to skip (or NULL). | |
413 | * @param[in] pattern Format string for command arguments. | |
414 | */ | |
415 | void sendcmdto_serv_butone(struct Client *from, const char *cmd, | |
416 | const char *tok, struct Client *one, | |
417 | const char *pattern, ...) | |
418 | { | |
419 | struct VarData vd; | |
420 | struct MsgBuf *mb; | |
421 | struct DLink *lp; | |
422 | ||
423 | vd.vd_format = pattern; /* set up the struct VarData for %v */ | |
424 | va_start(vd.vd_args, pattern); | |
425 | ||
426 | /* use token */ | |
427 | mb = msgq_make(&me, "%C %s %v", from, tok, &vd); | |
428 | va_end(vd.vd_args); | |
429 | ||
430 | /* send it to our downlinks */ | |
431 | for (lp = cli_serv(&me)->down; lp; lp = lp->next) { | |
432 | if (one && lp->value.cptr == cli_from(one)) | |
433 | continue; | |
434 | send_buffer(lp->value.cptr, mb, 0); | |
435 | } | |
436 | ||
437 | msgq_clean(mb); | |
438 | } | |
439 | ||
440 | /** Safely increment the sentalong marker. | |
441 | * This increments the sentalong marker. Since new connections will | |
442 | * have con_sentalong() == 0, and to avoid confusion when the counter | |
443 | * wraps, we reset all sentalong markers to zero when the sentalong | |
444 | * marker hits zero. | |
445 | * @param[in,out] one Client to mark with new sentalong marker (if any). | |
446 | */ | |
447 | static void | |
448 | bump_sentalong(struct Client *one) | |
449 | { | |
450 | if (!++sentalong_marker) | |
451 | { | |
452 | int ii; | |
453 | for (ii = 0; ii < HighestFd; ++ii) | |
454 | if (LocalClientArray[ii]) | |
455 | cli_sentalong(LocalClientArray[ii]) = 0; | |
456 | ++sentalong_marker; | |
457 | } | |
458 | if (one) | |
459 | cli_sentalong(one) = sentalong_marker; | |
460 | } | |
461 | ||
462 | /** Send a (prefixed) command to all channels that \a from is on. | |
463 | * @param[in] from Client originating the command. | |
464 | * @param[in] cmd Long name of command. | |
465 | * @param[in] tok Short name of command. | |
466 | * @param[in] one Client direction to skip (or NULL). | |
467 | * @param[in] pattern Format string for command arguments. | |
468 | */ | |
469 | void sendcmdto_common_channels_butone(struct Client *from, const char *cmd, | |
470 | const char *tok, struct Client *one, | |
471 | const char *pattern, ...) | |
472 | { | |
473 | struct VarData vd; | |
474 | struct MsgBuf *mb; | |
475 | struct Membership *chan; | |
476 | struct Membership *member; | |
477 | ||
478 | assert(0 != from); | |
479 | assert(0 != cli_from(from)); | |
480 | assert(0 != pattern); | |
481 | assert(!IsServer(from) && !IsMe(from)); | |
482 | ||
483 | vd.vd_format = pattern; /* set up the struct VarData for %v */ | |
484 | ||
485 | va_start(vd.vd_args, pattern); | |
486 | ||
487 | /* build the buffer */ | |
488 | mb = msgq_make(0, "%:#C %s %v", from, cmd, &vd); | |
489 | va_end(vd.vd_args); | |
490 | ||
491 | bump_sentalong(from); | |
492 | /* | |
493 | * loop through from's channels, and the members on their channels | |
494 | */ | |
495 | for (chan = cli_user(from)->channel; chan; chan = chan->next_channel) { | |
496 | if (IsZombie(chan) || IsDelayedJoin(chan)) | |
497 | continue; | |
498 | for (member = chan->channel->members; member; | |
499 | member = member->next_member) | |
500 | if (MyConnect(member->user) | |
501 | && -1 < cli_fd(cli_from(member->user)) | |
502 | && member->user != one | |
503 | && cli_sentalong(member->user) != sentalong_marker) { | |
504 | cli_sentalong(member->user) = sentalong_marker; | |
505 | send_buffer(member->user, mb, 0); | |
506 | } | |
507 | } | |
508 | ||
509 | if (MyConnect(from) && from != one) | |
510 | send_buffer(from, mb, 0); | |
511 | ||
512 | msgq_clean(mb); | |
513 | } | |
514 | ||
515 | /** Send a (prefixed) command to all local users on a channel. | |
516 | * @param[in] from Client originating the command. | |
517 | * @param[in] cmd Long name of command. | |
518 | * @param[in] tok Short name of command (ignored). | |
519 | * @param[in] to Destination channel. | |
520 | * @param[in] one Client direction to skip (or NULL). | |
521 | * @param[in] skip Bitmask of SKIP_DEAF, SKIP_NONOPS, SKIP_NONVOICES indicating which clients to skip. | |
522 | * @param[in] pattern Format string for command arguments. | |
523 | */ | |
524 | void sendcmdto_channel_butserv_butone(struct Client *from, const char *cmd, | |
525 | const char *tok, struct Channel *to, | |
526 | struct Client *one, unsigned int skip, | |
527 | const char *pattern, ...) | |
528 | { | |
529 | struct VarData vd; | |
530 | struct MsgBuf *mb; | |
531 | struct Membership *member; | |
532 | ||
533 | vd.vd_format = pattern; /* set up the struct VarData for %v */ | |
534 | va_start(vd.vd_args, pattern); | |
535 | ||
536 | /* build the buffer */ | |
537 | mb = msgq_make(0, "%:#C %s %v", from, cmd, &vd); | |
538 | va_end(vd.vd_args); | |
539 | ||
540 | /* send the buffer to each local channel member */ | |
541 | for (member = to->members; member; member = member->next_member) { | |
542 | if (!MyConnect(member->user) | |
543 | || member->user == one | |
544 | || IsZombie(member) | |
545 | || (skip & SKIP_DEAF && IsDeaf(member->user)) | |
546 | || (skip & SKIP_NONOPS && !IsChanOp(member)) | |
547 | || (skip & SKIP_NONVOICES && !IsChanOp(member) && !HasVoice(member))) | |
548 | continue; | |
549 | send_buffer(member->user, mb, 0); | |
550 | } | |
551 | ||
552 | msgq_clean(mb); | |
553 | } | |
554 | ||
555 | /** Send a (prefixed) command to all servers with users on \a to. | |
556 | * Skip \a from and \a one plus those indicated in \a skip. | |
557 | * @param[in] from Client originating the command. | |
558 | * @param[in] cmd Long name of command (ignored). | |
559 | * @param[in] tok Short name of command. | |
560 | * @param[in] to Destination channel. | |
561 | * @param[in] one Client direction to skip (or NULL). | |
562 | * @param[in] skip Bitmask of SKIP_NONOPS and SKIP_NONVOICES indicating which clients to skip. | |
563 | * @param[in] pattern Format string for command arguments. | |
564 | */ | |
565 | void sendcmdto_channel_servers_butone(struct Client *from, const char *cmd, | |
566 | const char *tok, struct Channel *to, | |
567 | struct Client *one, unsigned int skip, | |
568 | const char *pattern, ...) | |
569 | { | |
570 | struct VarData vd; | |
571 | struct MsgBuf *serv_mb; | |
572 | struct Membership *member; | |
573 | ||
574 | /* build the buffer */ | |
575 | vd.vd_format = pattern; | |
576 | va_start(vd.vd_args, pattern); | |
577 | serv_mb = msgq_make(&me, "%:#C %s %v", from, tok, &vd); | |
578 | va_end(vd.vd_args); | |
579 | ||
580 | /* send the buffer to each server */ | |
581 | bump_sentalong(one); | |
582 | cli_sentalong(from) = sentalong_marker; | |
583 | for (member = to->members; member; member = member->next_member) { | |
584 | if (MyConnect(member->user) | |
585 | || IsZombie(member) | |
586 | || cli_fd(cli_from(member->user)) < 0 | |
587 | || cli_sentalong(member->user) == sentalong_marker | |
588 | || (skip & SKIP_NONOPS && !IsChanOp(member)) | |
589 | || (skip & SKIP_NONVOICES && !IsChanOp(member) && !HasVoice(member))) | |
590 | continue; | |
591 | cli_sentalong(member->user) = sentalong_marker; | |
592 | send_buffer(member->user, serv_mb, 0); | |
593 | } | |
594 | msgq_clean(serv_mb); | |
595 | } | |
596 | ||
597 | ||
598 | /** Send a (prefixed) command to all users on this channel, except for | |
599 | * \a one and those matching \a skip. | |
600 | * @param[in] from Client originating the command. | |
601 | * @param[in] cmd Long name of command. | |
602 | * @param[in] tok Short name of command. | |
603 | * @param[in] to Destination channel. | |
604 | * @param[in] one Client direction to skip (or NULL). | |
605 | * @param[in] skip Bitmask of SKIP_NONOPS, SKIP_NONVOICES, SKIP_DEAF, SKIP_BURST. | |
606 | * @param[in] pattern Format string for command arguments. | |
607 | */ | |
608 | void sendcmdto_channel_butone(struct Client *from, const char *cmd, | |
609 | const char *tok, struct Channel *to, | |
610 | struct Client *one, unsigned int skip, | |
611 | const char *pattern, ...) | |
612 | { | |
613 | struct Membership *member; | |
614 | struct VarData vd; | |
615 | struct MsgBuf *user_mb; | |
616 | struct MsgBuf *serv_mb; | |
617 | ||
618 | vd.vd_format = pattern; | |
619 | ||
620 | /* Build buffer to send to users */ | |
621 | va_start(vd.vd_args, pattern); | |
622 | user_mb = msgq_make(0, skip & (SKIP_NONOPS | SKIP_NONVOICES) ? "%:#C %s @%v" : "%:#C %s %v", | |
623 | from, skip & (SKIP_NONOPS | SKIP_NONVOICES) ? MSG_NOTICE : cmd, &vd); | |
624 | va_end(vd.vd_args); | |
625 | ||
626 | /* Build buffer to send to servers */ | |
627 | va_start(vd.vd_args, pattern); | |
628 | serv_mb = msgq_make(&me, "%C %s %v", from, tok, &vd); | |
629 | va_end(vd.vd_args); | |
630 | ||
631 | /* send buffer along! */ | |
632 | bump_sentalong(one); | |
633 | for (member = to->members; member; member = member->next_member) { | |
634 | /* skip one, zombies, and deaf users... */ | |
635 | if (IsZombie(member) || | |
636 | (skip & SKIP_DEAF && IsDeaf(member->user)) || | |
637 | (skip & SKIP_NONOPS && !IsChanOp(member)) || | |
638 | (skip & SKIP_NONVOICES && !IsChanOp(member) && !HasVoice(member)) || | |
639 | (skip & SKIP_BURST && IsBurstOrBurstAck(cli_from(member->user))) || | |
640 | cli_fd(cli_from(member->user)) < 0 || | |
641 | cli_sentalong(member->user) == sentalong_marker) | |
642 | continue; | |
643 | cli_sentalong(member->user) = sentalong_marker; | |
644 | ||
645 | if (MyConnect(member->user)) /* pick right buffer to send */ | |
646 | send_buffer(member->user, user_mb, 0); | |
647 | else | |
648 | send_buffer(member->user, serv_mb, 0); | |
649 | } | |
650 | ||
651 | msgq_clean(user_mb); | |
652 | msgq_clean(serv_mb); | |
653 | } | |
654 | ||
655 | /** Send a (prefixed) WALL of type \a type to all users except \a one. | |
656 | * @param[in] from Source of the command. | |
657 | * @param[in] type One of WALL_DESYNCH, WALL_WALLOPS or WALL_WALLUSERS. | |
658 | * @param[in] one Client direction to skip (or NULL). | |
659 | * @param[in] pattern Format string for command arguments. | |
660 | */ | |
661 | void sendwallto_group_butone(struct Client *from, int type, struct Client *one, | |
662 | const char *pattern, ...) | |
663 | { | |
664 | struct VarData vd; | |
665 | struct Client *cptr; | |
666 | struct MsgBuf *mb; | |
667 | struct DLink *lp; | |
668 | char *prefix=NULL; | |
669 | char *tok=NULL; | |
670 | int i; | |
671 | ||
672 | vd.vd_format = pattern; | |
673 | ||
674 | /* Build buffer to send to users */ | |
675 | va_start(vd.vd_args, pattern); | |
676 | switch (type) { | |
677 | case WALL_DESYNCH: | |
678 | prefix=""; | |
679 | tok=TOK_DESYNCH; | |
680 | break; | |
681 | case WALL_WALLOPS: | |
682 | prefix="* "; | |
683 | tok=TOK_WALLOPS; | |
684 | break; | |
685 | case WALL_WALLUSERS: | |
686 | prefix="$ "; | |
687 | tok=TOK_WALLUSERS; | |
688 | break; | |
689 | default: | |
690 | assert(0); | |
691 | } | |
692 | mb = msgq_make(0, "%:#C " MSG_WALLOPS " :%s%v", from, prefix,&vd); | |
693 | va_end(vd.vd_args); | |
694 | ||
695 | /* send buffer along! */ | |
696 | for (i = 0; i <= HighestFd; i++) | |
697 | { | |
698 | if (!(cptr = LocalClientArray[i]) || | |
699 | (cli_fd(cli_from(cptr)) < 0) || | |
700 | (type == WALL_DESYNCH && !HasFlag(cptr, FLAG_DEBUG)) || | |
701 | (type == WALL_WALLOPS && | |
702 | (!HasFlag(cptr, FLAG_WALLOP) || (feature_bool(FEAT_HIS_WALLOPS) && | |
703 | !IsAnOper(cptr)))) || | |
704 | (type == WALL_WALLUSERS && !HasFlag(cptr, FLAG_WALLOP))) | |
705 | continue; /* skip it */ | |
706 | send_buffer(cptr, mb, 1); | |
707 | } | |
708 | ||
709 | msgq_clean(mb); | |
710 | ||
711 | /* Build buffer to send to servers */ | |
712 | va_start(vd.vd_args, pattern); | |
713 | mb = msgq_make(&me, "%C %s :%v", from, tok, &vd); | |
714 | va_end(vd.vd_args); | |
715 | ||
716 | /* send buffer along! */ | |
717 | for (lp = cli_serv(&me)->down; lp; lp = lp->next) { | |
718 | if (one && lp->value.cptr == cli_from(one)) | |
719 | continue; | |
720 | send_buffer(lp->value.cptr, mb, 1); | |
721 | } | |
722 | ||
723 | msgq_clean(mb); | |
724 | } | |
725 | ||
726 | /** Send a (prefixed) command to all users matching \a to as \a who. | |
727 | * @param[in] from Source of the command. | |
728 | * @param[in] cmd Long name of command. | |
729 | * @param[in] tok Short name of command. | |
730 | * @param[in] to Destination host/server mask. | |
731 | * @param[in] one Client direction to skip (or NULL). | |
732 | * @param[in] who Type of match for \a to (either MATCH_HOST or MATCH_SERVER). | |
733 | * @param[in] pattern Format string for command arguments. | |
734 | */ | |
735 | void sendcmdto_match_butone(struct Client *from, const char *cmd, | |
736 | const char *tok, const char *to, | |
737 | struct Client *one, unsigned int who, | |
738 | const char *pattern, ...) | |
739 | { | |
740 | struct VarData vd; | |
741 | struct Client *cptr; | |
742 | struct MsgBuf *user_mb; | |
743 | struct MsgBuf *serv_mb; | |
744 | ||
745 | vd.vd_format = pattern; | |
746 | ||
747 | /* Build buffer to send to users */ | |
748 | va_start(vd.vd_args, pattern); | |
749 | user_mb = msgq_make(0, "%:#C %s %v", from, cmd, &vd); | |
750 | va_end(vd.vd_args); | |
751 | ||
752 | /* Build buffer to send to servers */ | |
753 | va_start(vd.vd_args, pattern); | |
754 | serv_mb = msgq_make(&me, "%C %s %v", from, tok, &vd); | |
755 | va_end(vd.vd_args); | |
756 | ||
757 | /* send buffer along */ | |
758 | bump_sentalong(one); | |
759 | for (cptr = GlobalClientList; cptr; cptr = cli_next(cptr)) { | |
760 | if (!IsRegistered(cptr) || IsServer(cptr) || | |
761 | !match_it(from, cptr, to, who) || cli_fd(cli_from(cptr)) < 0 || | |
762 | cli_sentalong(cptr) == sentalong_marker) | |
763 | continue; /* skip it */ | |
764 | cli_sentalong(cptr) = sentalong_marker; | |
765 | ||
766 | if (MyConnect(cptr)) /* send right buffer */ | |
767 | send_buffer(cptr, user_mb, 0); | |
768 | else | |
769 | send_buffer(cptr, serv_mb, 0); | |
770 | } | |
771 | ||
772 | msgq_clean(user_mb); | |
773 | msgq_clean(serv_mb); | |
774 | } | |
775 | ||
776 | /** Send a server notice to all users subscribing to the indicated \a | |
777 | * mask except for \a one. | |
778 | * @param[in] one Client direction to skip (or NULL). | |
779 | * @param[in] mask One of the SNO_* constants. | |
780 | * @param[in] pattern Format string for server notice. | |
781 | */ | |
782 | void sendto_opmask_butone(struct Client *one, unsigned int mask, | |
783 | const char *pattern, ...) | |
784 | { | |
785 | va_list vl; | |
786 | ||
787 | va_start(vl, pattern); | |
788 | vsendto_opmask_butone(one, mask, pattern, vl); | |
789 | va_end(vl); | |
790 | } | |
791 | ||
792 | /** Send a server notice to all users subscribing to the indicated \a | |
793 | * mask except for \a one, rate-limited to once per 30 seconds. | |
794 | * @param[in] one Client direction to skip (or NULL). | |
795 | * @param[in] mask One of the SNO_* constants. | |
796 | * @param[in,out] rate Pointer to the last time the message was sent. | |
797 | * @param[in] pattern Format string for server notice. | |
798 | */ | |
799 | void sendto_opmask_butone_ratelimited(struct Client *one, unsigned int mask, | |
800 | time_t *rate, const char *pattern, ...) | |
801 | { | |
802 | va_list vl; | |
803 | ||
804 | if ((CurrentTime - *rate) < 30) | |
805 | return; | |
806 | else | |
807 | *rate = CurrentTime; | |
808 | ||
809 | va_start(vl, pattern); | |
810 | vsendto_opmask_butone(one, mask, pattern, vl); | |
811 | va_end(vl); | |
812 | } | |
813 | ||
814 | ||
815 | /** Send a server notice to all users subscribing to the indicated \a | |
816 | * mask except for \a one. | |
817 | * @param[in] one Client direction to skip (or NULL). | |
818 | * @param[in] mask One of the SNO_* constants. | |
819 | * @param[in] pattern Format string for server notice. | |
820 | * @param[in] vl Argument list for format string. | |
821 | */ | |
822 | void vsendto_opmask_butone(struct Client *one, unsigned int mask, | |
823 | const char *pattern, va_list vl) | |
824 | { | |
825 | struct VarData vd; | |
826 | struct MsgBuf *mb; | |
827 | int i = 0; /* so that 1 points to opsarray[0] */ | |
828 | struct SLink *opslist; | |
829 | ||
830 | while ((mask >>= 1)) | |
831 | i++; | |
832 | ||
833 | if (!(opslist = opsarray[i])) | |
834 | return; | |
835 | ||
836 | /* | |
837 | * build string; I don't want to bother with client nicknames, so I hope | |
838 | * this is ok... | |
839 | */ | |
840 | vd.vd_format = pattern; | |
841 | va_copy(vd.vd_args, vl); | |
842 | mb = msgq_make(0, ":%s " MSG_NOTICE " * :*** Notice -- %v", cli_name(&me), | |
843 | &vd); | |
844 | ||
845 | for (; opslist; opslist = opslist->next) | |
846 | if (opslist->value.cptr != one) | |
847 | send_buffer(opslist->value.cptr, mb, 0); | |
848 | ||
849 | msgq_clean(mb); | |
850 | } |