1 |
/* |
2 |
* ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd) |
3 |
* |
4 |
* Copyright (c) 1997-2017 ircd-hybrid development team |
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 2 of the License, or |
9 |
* (at your option) 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 |
19 |
* USA |
20 |
*/ |
21 |
|
22 |
/*! \file send.c |
23 |
* \brief Functions for sending messages. |
24 |
* \version $Id$ |
25 |
*/ |
26 |
|
27 |
#include "stdinc.h" |
28 |
#include "list.h" |
29 |
#include "send.h" |
30 |
#include "channel.h" |
31 |
#include "client.h" |
32 |
#include "dbuf.h" |
33 |
#include "irc_string.h" |
34 |
#include "ircd.h" |
35 |
#include "s_bsd.h" |
36 |
#include "server.h" |
37 |
#include "conf_class.h" |
38 |
#include "log.h" |
39 |
|
40 |
|
41 |
static uintmax_t current_serial; |
42 |
|
43 |
|
44 |
/* send_format() |
45 |
* |
46 |
* inputs |
47 |
* - buffer |
48 |
* - format pattern to use |
49 |
* - var args |
50 |
* output - number of bytes formatted output |
51 |
* side effects - modifies sendbuf |
52 |
*/ |
53 |
static void |
54 |
send_format(struct dbuf_block *buffer, const char *pattern, va_list args) |
55 |
{ |
56 |
/* |
57 |
* from rfc1459 |
58 |
* |
59 |
* IRC messages are always lines of characters terminated with a CR-LF |
60 |
* (Carriage Return - Line Feed) pair, and these messages shall not |
61 |
* exceed 512 characters in length, counting all characters |
62 |
* including the trailing CR-LF. |
63 |
* Thus, there are 510 characters maximum allowed |
64 |
* for the command and its parameters. There is no provision for |
65 |
* continuation message lines. See section 7 for more details about |
66 |
* current implementations. |
67 |
*/ |
68 |
dbuf_put_args(buffer, pattern, args); |
69 |
|
70 |
if (buffer->size > IRCD_BUFSIZE - 2) |
71 |
buffer->size = IRCD_BUFSIZE - 2; |
72 |
|
73 |
buffer->data[buffer->size++] = '\r'; |
74 |
buffer->data[buffer->size++] = '\n'; |
75 |
} |
76 |
|
77 |
/* |
78 |
** send_message |
79 |
** Internal utility which appends given buffer to the sockets |
80 |
** sendq. |
81 |
*/ |
82 |
static void |
83 |
send_message(struct Client *to, struct dbuf_block *buf) |
84 |
{ |
85 |
assert(!IsMe(to)); |
86 |
assert(to != &me); |
87 |
assert(MyConnect(to)); |
88 |
|
89 |
if (dbuf_length(&to->connection->buf_sendq) + buf->size > get_sendq(&to->connection->confs)) |
90 |
{ |
91 |
if (IsServer(to)) |
92 |
sendto_realops_flags(UMODE_SERVNOTICE, L_ALL, SEND_NOTICE, |
93 |
"Max SendQ limit exceeded for %s: %zu > %u", |
94 |
client_get_name(to, HIDE_IP), |
95 |
(dbuf_length(&to->connection->buf_sendq) + buf->size), |
96 |
get_sendq(&to->connection->confs)); |
97 |
|
98 |
if (IsClient(to)) |
99 |
AddFlag(to, FLAGS_SENDQEX); |
100 |
|
101 |
dead_link_on_write(to, 0); |
102 |
return; |
103 |
} |
104 |
|
105 |
dbuf_add(&to->connection->buf_sendq, buf); |
106 |
|
107 |
/* |
108 |
* Update statistics. The following is slightly incorrect because |
109 |
* it counts messages even if queued, but bytes only really sent. |
110 |
* Queued bytes get updated in send_queued_write(). |
111 |
*/ |
112 |
++to->connection->send.messages; |
113 |
++me.connection->send.messages; |
114 |
|
115 |
send_queued_write(to); |
116 |
} |
117 |
|
118 |
/* send_message_remote() |
119 |
* |
120 |
* inputs - pointer to client from message is being sent |
121 |
* - pointer to client to send to |
122 |
* - pointer to buffer |
123 |
* output - none |
124 |
* side effects - Despite the function name, this only sends to directly |
125 |
* connected clients. |
126 |
* |
127 |
*/ |
128 |
static void |
129 |
send_message_remote(struct Client *to, const struct Client *from, struct dbuf_block *buf) |
130 |
{ |
131 |
assert(MyConnect(to)); |
132 |
assert(IsServer(to)); |
133 |
assert(!IsMe(to)); |
134 |
assert(to->from == to); |
135 |
|
136 |
if (to == from->from) |
137 |
{ |
138 |
sendto_realops_flags(UMODE_SERVNOTICE, L_ALL, SEND_NOTICE, |
139 |
"Send message to %s dropped from %s (Fake Dir)", |
140 |
to->name, from->name); |
141 |
return; |
142 |
} |
143 |
|
144 |
send_message(to, buf); |
145 |
} |
146 |
|
147 |
/* |
148 |
** sendq_unblocked |
149 |
** Called when a socket is ready for writing. |
150 |
*/ |
151 |
void |
152 |
sendq_unblocked(fde_t *fd, void *data) |
153 |
{ |
154 |
struct Client *const client_p = data; |
155 |
assert(fd == &client_p->connection->fd); |
156 |
|
157 |
DelFlag(client_p, FLAGS_BLOCKED); |
158 |
send_queued_write(client_p); |
159 |
} |
160 |
|
161 |
/* |
162 |
** send_queued_write |
163 |
** This is called when there is a chance that some output would |
164 |
** be possible. This attempts to empty the send queue as far as |
165 |
** possible, and then if any data is left, a write is rescheduled. |
166 |
*/ |
167 |
void |
168 |
send_queued_write(struct Client *to) |
169 |
{ |
170 |
int retlen = 0; |
171 |
int want_read = 0; |
172 |
|
173 |
/* |
174 |
** Once socket is marked dead, we cannot start writing to it, |
175 |
** even if the error is removed... |
176 |
*/ |
177 |
if (IsDead(to) || HasFlag(to, FLAGS_BLOCKED)) |
178 |
return; /* no use calling send() now */ |
179 |
|
180 |
/* Next, lets try to write some data */ |
181 |
if (dbuf_length(&to->connection->buf_sendq)) |
182 |
{ |
183 |
do |
184 |
{ |
185 |
const struct dbuf_block *first = to->connection->buf_sendq.blocks.head->data; |
186 |
|
187 |
if (tls_isusing(&to->connection->fd.ssl)) |
188 |
{ |
189 |
retlen = tls_write(&to->connection->fd.ssl, first->data + to->connection->buf_sendq.pos, |
190 |
first->size - to->connection->buf_sendq.pos, &want_read); |
191 |
|
192 |
if (want_read) |
193 |
return; /* Retry later, don't register for write events */ |
194 |
} |
195 |
else |
196 |
retlen = send(to->connection->fd.fd, first->data + to->connection->buf_sendq.pos, |
197 |
first->size - to->connection->buf_sendq.pos, 0); |
198 |
|
199 |
if (retlen <= 0) |
200 |
break; |
201 |
|
202 |
dbuf_delete(&to->connection->buf_sendq, retlen); |
203 |
|
204 |
/* We have some data written .. update counters */ |
205 |
to->connection->send.bytes += retlen; |
206 |
me.connection->send.bytes += retlen; |
207 |
} while (dbuf_length(&to->connection->buf_sendq)); |
208 |
|
209 |
if (retlen < 0 && ignoreErrno(errno)) |
210 |
{ |
211 |
AddFlag(to, FLAGS_BLOCKED); |
212 |
|
213 |
/* we have a non-fatal error, reschedule a write */ |
214 |
comm_setselect(&to->connection->fd, COMM_SELECT_WRITE, sendq_unblocked, to, 0); |
215 |
} |
216 |
else if (retlen <= 0) |
217 |
{ |
218 |
dead_link_on_write(to, errno); |
219 |
return; |
220 |
} |
221 |
} |
222 |
} |
223 |
|
224 |
/* send_queued_all() |
225 |
* |
226 |
* input - NONE |
227 |
* output - NONE |
228 |
* side effects - try to flush sendq of each client |
229 |
*/ |
230 |
void |
231 |
send_queued_all(void) |
232 |
{ |
233 |
dlink_node *node = NULL; |
234 |
|
235 |
/* Servers are processed first, mainly because this can generate |
236 |
* a notice to opers, which is to be delivered by this function. |
237 |
*/ |
238 |
DLINK_FOREACH(node, local_server_list.head) |
239 |
send_queued_write(node->data); |
240 |
|
241 |
DLINK_FOREACH(node, unknown_list.head) |
242 |
send_queued_write(node->data); |
243 |
|
244 |
DLINK_FOREACH(node, local_client_list.head) |
245 |
send_queued_write(node->data); |
246 |
|
247 |
/* NOTE: This can still put clients on aborted_list; unfortunately, |
248 |
* exit_aborted_clients takes precedence over send_queued_all, |
249 |
* because exiting clients can generate server/oper traffic. |
250 |
* The easiest approach is dealing with aborted clients in the next I/O lap. |
251 |
* -adx |
252 |
*/ |
253 |
} |
254 |
|
255 |
/* sendto_one() |
256 |
* |
257 |
* inputs - pointer to destination client |
258 |
* - var args message |
259 |
* output - NONE |
260 |
* side effects - send message to single client |
261 |
*/ |
262 |
void |
263 |
sendto_one(struct Client *to, const char *pattern, ...) |
264 |
{ |
265 |
va_list args; |
266 |
|
267 |
if (IsDead(to->from)) |
268 |
return; /* This socket has already been marked as dead */ |
269 |
|
270 |
va_start(args, pattern); |
271 |
|
272 |
struct dbuf_block *buffer = dbuf_alloc(); |
273 |
send_format(buffer, pattern, args); |
274 |
|
275 |
va_end(args); |
276 |
|
277 |
send_message(to->from, buffer); |
278 |
|
279 |
dbuf_ref_free(buffer); |
280 |
} |
281 |
|
282 |
void |
283 |
sendto_one_numeric(struct Client *to, const struct Client *from, enum irc_numerics numeric, ...) |
284 |
{ |
285 |
va_list args; |
286 |
const char *numstr = NULL; |
287 |
|
288 |
if (IsDead(to->from)) |
289 |
return; |
290 |
|
291 |
const char *dest = ID_or_name(to, to); |
292 |
if (EmptyString(dest)) |
293 |
dest = "*"; |
294 |
|
295 |
struct dbuf_block *buffer = dbuf_alloc(); |
296 |
dbuf_put_fmt(buffer, ":%s %03d %s ", ID_or_name(from, to), numeric & ~SND_EXPLICIT, dest); |
297 |
|
298 |
va_start(args, numeric); |
299 |
|
300 |
if (numeric & SND_EXPLICIT) |
301 |
numstr = va_arg(args, const char *); |
302 |
else |
303 |
numstr = numeric_form(numeric); |
304 |
|
305 |
send_format(buffer, numstr, args); |
306 |
va_end(args); |
307 |
|
308 |
send_message(to->from, buffer); |
309 |
|
310 |
dbuf_ref_free(buffer); |
311 |
} |
312 |
|
313 |
void |
314 |
sendto_one_notice(struct Client *to, const struct Client *from, const char *pattern, ...) |
315 |
{ |
316 |
va_list args; |
317 |
|
318 |
if (IsDead(to->from)) |
319 |
return; |
320 |
|
321 |
const char *dest = ID_or_name(to, to); |
322 |
if (EmptyString(dest)) |
323 |
dest = "*"; |
324 |
|
325 |
struct dbuf_block *buffer = dbuf_alloc(); |
326 |
dbuf_put_fmt(buffer, ":%s NOTICE %s ", ID_or_name(from, to), dest); |
327 |
|
328 |
va_start(args, pattern); |
329 |
send_format(buffer, pattern, args); |
330 |
va_end(args); |
331 |
|
332 |
send_message(to->from, buffer); |
333 |
|
334 |
dbuf_ref_free(buffer); |
335 |
} |
336 |
|
337 |
/* sendto_channel_butone() |
338 |
* |
339 |
* inputs - pointer to client(server) to NOT send message to |
340 |
* - pointer to client that is sending this message |
341 |
* - pointer to channel being sent to |
342 |
* - vargs message |
343 |
* output - NONE |
344 |
* side effects - message as given is sent to given channel members. |
345 |
* |
346 |
* WARNING - +D clients are ignored |
347 |
*/ |
348 |
void |
349 |
sendto_channel_butone(struct Client *one, const struct Client *from, |
350 |
struct Channel *chptr, unsigned int type, |
351 |
const char *pattern, ...) |
352 |
{ |
353 |
va_list alocal, aremote; |
354 |
struct dbuf_block *local_buf, *remote_buf; |
355 |
dlink_node *node = NULL; |
356 |
|
357 |
local_buf = dbuf_alloc(), remote_buf = dbuf_alloc(); |
358 |
|
359 |
if (IsClient(from)) |
360 |
dbuf_put_fmt(local_buf, ":%s!%s@%s ", from->name, from->username, from->host); |
361 |
else |
362 |
dbuf_put_fmt(local_buf, ":%s ", from->name); |
363 |
|
364 |
dbuf_put_fmt(remote_buf, ":%s ", from->id); |
365 |
|
366 |
va_start(alocal, pattern); |
367 |
va_start(aremote, pattern); |
368 |
send_format(local_buf, pattern, alocal); |
369 |
send_format(remote_buf, pattern, aremote); |
370 |
|
371 |
va_end(aremote); |
372 |
va_end(alocal); |
373 |
|
374 |
++current_serial; |
375 |
|
376 |
DLINK_FOREACH(node, chptr->members.head) |
377 |
{ |
378 |
struct Membership *member = node->data; |
379 |
struct Client *target_p = member->client_p; |
380 |
|
381 |
assert(IsClient(target_p)); |
382 |
|
383 |
if (IsDefunct(target_p->from)) |
384 |
continue; |
385 |
|
386 |
if (one && (target_p->from == one->from)) |
387 |
continue; |
388 |
|
389 |
if (type && (member->flags & type) == 0) |
390 |
continue; |
391 |
|
392 |
if (HasUMode(target_p, UMODE_DEAF)) |
393 |
continue; |
394 |
|
395 |
if (MyConnect(target_p)) |
396 |
send_message(target_p, local_buf); |
397 |
else if (target_p->from->connection->serial != current_serial) |
398 |
send_message_remote(target_p->from, from, remote_buf); |
399 |
|
400 |
target_p->from->connection->serial = current_serial; |
401 |
} |
402 |
|
403 |
dbuf_ref_free(local_buf); |
404 |
dbuf_ref_free(remote_buf); |
405 |
} |
406 |
|
407 |
/* sendto_server() |
408 |
* |
409 |
* inputs - pointer to client to NOT send to |
410 |
* - pointer to channel |
411 |
* - caps or'd together which must ALL be present |
412 |
* - caps or'd together which must ALL NOT be present |
413 |
* - printf style format string |
414 |
* - args to format string |
415 |
* output - NONE |
416 |
* side effects - Send a message to all connected servers, except the |
417 |
* client 'one' (if non-NULL), as long as the servers |
418 |
* support ALL capabs in 'caps', and NO capabs in 'nocaps'. |
419 |
* |
420 |
* This function was written in an attempt to merge together the other |
421 |
* billion sendto_*serv*() functions, which sprung up with capabs, |
422 |
* lazylinks, uids, etc. |
423 |
* -davidt |
424 |
*/ |
425 |
void |
426 |
sendto_server(const struct Client *one, |
427 |
const unsigned int caps, |
428 |
const unsigned int nocaps, |
429 |
const char *format, ...) |
430 |
{ |
431 |
va_list args; |
432 |
dlink_node *node; |
433 |
|
434 |
va_start(args, format); |
435 |
|
436 |
struct dbuf_block *buffer = dbuf_alloc(); |
437 |
send_format(buffer, format, args); |
438 |
|
439 |
va_end(args); |
440 |
|
441 |
DLINK_FOREACH(node, local_server_list.head) |
442 |
{ |
443 |
struct Client *client_p = node->data; |
444 |
|
445 |
/* If dead already skip */ |
446 |
if (IsDead(client_p)) |
447 |
continue; |
448 |
|
449 |
/* check against 'one' */ |
450 |
if (one && (client_p == one->from)) |
451 |
continue; |
452 |
|
453 |
/* check we have required capabs */ |
454 |
if ((client_p->connection->caps & caps) != caps) |
455 |
continue; |
456 |
|
457 |
/* check we don't have any forbidden capabs */ |
458 |
if ((client_p->connection->caps & nocaps)) |
459 |
continue; |
460 |
|
461 |
send_message(client_p, buffer); |
462 |
} |
463 |
|
464 |
dbuf_ref_free(buffer); |
465 |
} |
466 |
|
467 |
/* sendto_common_channels_local() |
468 |
* |
469 |
* inputs - pointer to client |
470 |
* - pattern to send |
471 |
* output - NONE |
472 |
* side effects - Sends a message to all people on local server who are |
473 |
* in same channel with user. |
474 |
* used by m_nick.c and exit_one_client. |
475 |
*/ |
476 |
void |
477 |
sendto_common_channels_local(struct Client *user, int touser, unsigned int poscap, |
478 |
unsigned int negcap, const char *pattern, ...) |
479 |
{ |
480 |
va_list args; |
481 |
dlink_node *uptr; |
482 |
dlink_node *cptr; |
483 |
struct Channel *chptr; |
484 |
struct Membership *member; |
485 |
struct Client *target_p; |
486 |
struct dbuf_block *buffer = dbuf_alloc(); |
487 |
|
488 |
va_start(args, pattern); |
489 |
send_format(buffer, pattern, args); |
490 |
va_end(args); |
491 |
|
492 |
++current_serial; |
493 |
|
494 |
DLINK_FOREACH(cptr, user->channel.head) |
495 |
{ |
496 |
chptr = ((struct Membership *)cptr->data)->chptr; |
497 |
|
498 |
DLINK_FOREACH(uptr, chptr->locmembers.head) |
499 |
{ |
500 |
member = uptr->data; |
501 |
target_p = member->client_p; |
502 |
|
503 |
if (target_p == user || IsDefunct(target_p) || |
504 |
target_p->connection->serial == current_serial) |
505 |
continue; |
506 |
|
507 |
if (poscap && HasCap(target_p, poscap) != poscap) |
508 |
continue; |
509 |
|
510 |
if (negcap && HasCap(target_p, negcap)) |
511 |
continue; |
512 |
|
513 |
target_p->connection->serial = current_serial; |
514 |
send_message(target_p, buffer); |
515 |
} |
516 |
} |
517 |
|
518 |
if (touser && MyConnect(user) && !IsDead(user) && |
519 |
user->connection->serial != current_serial) |
520 |
if (HasCap(user, poscap) == poscap) |
521 |
send_message(user, buffer); |
522 |
|
523 |
dbuf_ref_free(buffer); |
524 |
} |
525 |
|
526 |
/*! \brief Send a message to members of a channel that are locally connected to this server. |
527 |
* \param one Client to skip; can be NULL |
528 |
* \param chptr Destination channel |
529 |
* \param status Channel member status flags clients must have |
530 |
* \param poscap Positive client capabilities flags (CAP) |
531 |
* \param negcap Negative client capabilities flags (CAP) |
532 |
* \param pattern Format string for command arguments |
533 |
*/ |
534 |
void |
535 |
sendto_channel_local(const struct Client *one, struct Channel *chptr, unsigned int status, |
536 |
unsigned int poscap, unsigned int negcap, const char *pattern, ...) |
537 |
{ |
538 |
va_list args; |
539 |
dlink_node *node = NULL; |
540 |
struct dbuf_block *buffer = dbuf_alloc(); |
541 |
|
542 |
va_start(args, pattern); |
543 |
send_format(buffer, pattern, args); |
544 |
va_end(args); |
545 |
|
546 |
DLINK_FOREACH(node, chptr->locmembers.head) |
547 |
{ |
548 |
struct Membership *member = node->data; |
549 |
struct Client *target_p = member->client_p; |
550 |
|
551 |
if (IsDefunct(target_p)) |
552 |
continue; |
553 |
|
554 |
if (one && target_p == one->from) |
555 |
continue; |
556 |
|
557 |
if (status && (member->flags & status) == 0) |
558 |
continue; |
559 |
|
560 |
if (poscap && HasCap(target_p, poscap) != poscap) |
561 |
continue; |
562 |
|
563 |
if (negcap && HasCap(target_p, negcap)) |
564 |
continue; |
565 |
|
566 |
send_message(target_p, buffer); |
567 |
} |
568 |
|
569 |
dbuf_ref_free(buffer); |
570 |
} |
571 |
|
572 |
/* |
573 |
** match_it() and sendto_match_butone() ARE only used |
574 |
** to send a msg to all ppl on servers/hosts that match a specified mask |
575 |
** (used for enhanced PRIVMSGs) for opers |
576 |
** |
577 |
** addition -- Armin, 8jun90 (gruner@informatik.tu-muenchen.de) |
578 |
** |
579 |
*/ |
580 |
|
581 |
/* match_it() |
582 |
* |
583 |
* inputs - client pointer to match on |
584 |
* - actual mask to match |
585 |
* - what to match on, HOST or SERVER |
586 |
* output - 1 or 0 if match or not |
587 |
* side effects - NONE |
588 |
*/ |
589 |
static int |
590 |
match_it(const struct Client *one, const char *mask, unsigned int what) |
591 |
{ |
592 |
if (what == MATCH_HOST) |
593 |
return !match(mask, one->host); |
594 |
|
595 |
return !match(mask, one->servptr->name); |
596 |
} |
597 |
|
598 |
/* sendto_match_butone() |
599 |
* |
600 |
* Send to all clients which match the mask in a way defined on 'what'; |
601 |
* either by user hostname or user servername. |
602 |
* |
603 |
* ugh. ONLY used by m_message.c to send an "oper magic" message. ugh. |
604 |
*/ |
605 |
void |
606 |
sendto_match_butone(const struct Client *one, const struct Client *from, |
607 |
const char *mask, int what, const char *pattern, ...) |
608 |
{ |
609 |
va_list alocal, aremote; |
610 |
dlink_node *node = NULL; |
611 |
struct dbuf_block *local_buf, *remote_buf; |
612 |
|
613 |
local_buf = dbuf_alloc(), remote_buf = dbuf_alloc(); |
614 |
|
615 |
dbuf_put_fmt(local_buf, ":%s!%s@%s ", from->name, from->username, from->host); |
616 |
dbuf_put_fmt(remote_buf, ":%s ", from->id); |
617 |
|
618 |
va_start(alocal, pattern); |
619 |
va_start(aremote, pattern); |
620 |
send_format(local_buf, pattern, alocal); |
621 |
send_format(remote_buf, pattern, aremote); |
622 |
va_end(aremote); |
623 |
va_end(alocal); |
624 |
|
625 |
/* scan the local clients */ |
626 |
DLINK_FOREACH(node, local_client_list.head) |
627 |
{ |
628 |
struct Client *client_p = node->data; |
629 |
|
630 |
if ((!one || client_p != one->from) && !IsDefunct(client_p) && |
631 |
match_it(client_p, mask, what)) |
632 |
send_message(client_p, local_buf); |
633 |
} |
634 |
|
635 |
/* Now scan servers */ |
636 |
DLINK_FOREACH(node, local_server_list.head) |
637 |
{ |
638 |
struct Client *client_p = node->data; |
639 |
|
640 |
/* |
641 |
* The old code looped through every client on the |
642 |
* network for each server to check if the |
643 |
* server (client_p) has at least 1 client matching |
644 |
* the mask, using something like: |
645 |
* |
646 |
* for (target_p = GlobalClientList; target_p; target_p = target_p->next) |
647 |
* if (IsRegisteredUser(target_p) && |
648 |
* match_it(target_p, mask, what) && |
649 |
* (target_p->from == client_p)) |
650 |
* vsendto_prefix_one(client_p, from, pattern, args); |
651 |
* |
652 |
* That way, we wouldn't send the message to |
653 |
* a server who didn't have a matching client. |
654 |
* However, on a network such as EFNet, that |
655 |
* code would have looped through about 50 |
656 |
* servers, and in each loop, loop through |
657 |
* about 50k clients as well, calling match() |
658 |
* in each nested loop. That is a very bad |
659 |
* thing cpu wise - just send the message |
660 |
* to every connected server and let that |
661 |
* server deal with it. |
662 |
* -wnder |
663 |
*/ |
664 |
if ((!one || client_p != one->from) && !IsDefunct(client_p)) |
665 |
send_message_remote(client_p, from, remote_buf); |
666 |
} |
667 |
|
668 |
dbuf_ref_free(local_buf); |
669 |
dbuf_ref_free(remote_buf); |
670 |
} |
671 |
|
672 |
/* sendto_match_servs() |
673 |
* |
674 |
* inputs - source client |
675 |
* - mask to send to |
676 |
* - capab needed |
677 |
* - data |
678 |
* outputs - none |
679 |
* side effects - data sent to servers matching with capab |
680 |
*/ |
681 |
void |
682 |
sendto_match_servs(const struct Client *source_p, const char *mask, unsigned int cap, |
683 |
const char *pattern, ...) |
684 |
{ |
685 |
va_list args; |
686 |
dlink_node *node = NULL; |
687 |
struct dbuf_block *buffer = dbuf_alloc(); |
688 |
|
689 |
dbuf_put_fmt(buffer, ":%s ", source_p->id); |
690 |
va_start(args, pattern); |
691 |
send_format(buffer, pattern, args); |
692 |
va_end(args); |
693 |
|
694 |
++current_serial; |
695 |
|
696 |
DLINK_FOREACH(node, global_server_list.head) |
697 |
{ |
698 |
struct Client *target_p = node->data; |
699 |
|
700 |
/* Do not attempt to send to ourselves, or the source */ |
701 |
if (IsMe(target_p) || target_p->from == source_p->from) |
702 |
continue; |
703 |
|
704 |
if (target_p->from->connection->serial == current_serial) |
705 |
continue; |
706 |
|
707 |
if (match(mask, target_p->name)) |
708 |
continue; |
709 |
|
710 |
if (cap && IsCapable(target_p->from, cap) != cap) |
711 |
continue; |
712 |
|
713 |
target_p->from->connection->serial = current_serial; |
714 |
send_message_remote(target_p->from, source_p, buffer); |
715 |
} |
716 |
|
717 |
dbuf_ref_free(buffer); |
718 |
} |
719 |
|
720 |
/* sendto_anywhere() |
721 |
* |
722 |
* inputs - pointer to dest client |
723 |
* - pointer to from client |
724 |
* - varags |
725 |
* output - NONE |
726 |
* side effects - less efficient than sendto_remote and sendto_one |
727 |
* but useful when one does not know where target "lives" |
728 |
*/ |
729 |
void |
730 |
sendto_anywhere(struct Client *to, const struct Client *from, |
731 |
const char *command, |
732 |
const char *pattern, ...) |
733 |
{ |
734 |
va_list args; |
735 |
|
736 |
if (IsDead(to->from)) |
737 |
return; |
738 |
|
739 |
struct dbuf_block *buffer = dbuf_alloc(); |
740 |
if (MyClient(to) && IsClient(from)) |
741 |
dbuf_put_fmt(buffer, ":%s!%s@%s %s %s ", from->name, from->username, |
742 |
from->host, command, to->name); |
743 |
else |
744 |
dbuf_put_fmt(buffer, ":%s %s %s ", ID_or_name(from, to), |
745 |
command, ID_or_name(to, to)); |
746 |
|
747 |
va_start(args, pattern); |
748 |
send_format(buffer, pattern, args); |
749 |
va_end(args); |
750 |
|
751 |
if (MyConnect(to)) |
752 |
send_message(to, buffer); |
753 |
else |
754 |
send_message_remote(to->from, from, buffer); |
755 |
|
756 |
dbuf_ref_free(buffer); |
757 |
} |
758 |
|
759 |
/* sendto_realops_flags() |
760 |
* |
761 |
* inputs - flag types of messages to show to real opers |
762 |
* - flag indicating opers/admins |
763 |
* - var args input message |
764 |
* output - NONE |
765 |
* side effects - Send to *local* ops only but NOT +s nonopers. |
766 |
*/ |
767 |
void |
768 |
sendto_realops_flags(unsigned int flags, int level, int type, const char *pattern, ...) |
769 |
{ |
770 |
const char *ntype = "???"; |
771 |
dlink_node *node; |
772 |
va_list args; |
773 |
|
774 |
switch (type) |
775 |
{ |
776 |
case SEND_NOTICE: |
777 |
ntype = "Notice"; |
778 |
break; |
779 |
case SEND_GLOBAL: |
780 |
ntype = "Global"; |
781 |
break; |
782 |
case SEND_LOCOPS: |
783 |
ntype = "LocOps"; |
784 |
break; |
785 |
default: |
786 |
assert(0); |
787 |
} |
788 |
|
789 |
struct dbuf_block *buffer = dbuf_alloc(); |
790 |
dbuf_put_fmt(buffer, ":%s NOTICE * :*** %s -- ", me.name, ntype); |
791 |
|
792 |
va_start(args, pattern); |
793 |
send_format(buffer, pattern, args); |
794 |
va_end(args); |
795 |
|
796 |
DLINK_FOREACH(node, oper_list.head) |
797 |
{ |
798 |
struct Client *client_p = node->data; |
799 |
assert(HasUMode(client_p, UMODE_OPER)); |
800 |
|
801 |
/* |
802 |
* If we're sending it to opers and they're an admin, skip. |
803 |
* If we're sending it to admins, and they're not, skip. |
804 |
*/ |
805 |
if (((level == L_ADMIN) && !HasUMode(client_p, UMODE_ADMIN)) || |
806 |
((level == L_OPER) && HasUMode(client_p, UMODE_ADMIN))) |
807 |
continue; |
808 |
|
809 |
if (HasUMode(client_p, flags) && !IsDead(client_p)) |
810 |
send_message(client_p, buffer); |
811 |
} |
812 |
|
813 |
dbuf_ref_free(buffer); |
814 |
} |
815 |
|
816 |
/* ts_warn() |
817 |
* |
818 |
* inputs - var args message |
819 |
* output - NONE |
820 |
* side effects - Call sendto_realops_flags, with some flood checking |
821 |
* (at most 5 warnings every 5 seconds) |
822 |
*/ |
823 |
void |
824 |
sendto_realops_flags_ratelimited(uintmax_t *rate, const char *pattern, ...) |
825 |
{ |
826 |
va_list args; |
827 |
char buffer[IRCD_BUFSIZE] = ""; |
828 |
|
829 |
if ((CurrentTime - *rate) < 20) |
830 |
return; |
831 |
|
832 |
*rate = CurrentTime; |
833 |
|
834 |
va_start(args, pattern); |
835 |
vsnprintf(buffer, sizeof(buffer), pattern, args); |
836 |
va_end(args); |
837 |
|
838 |
sendto_realops_flags(UMODE_SERVNOTICE, L_ALL, SEND_NOTICE, "%s", buffer); |
839 |
ilog(LOG_TYPE_IRCD, "%s", buffer); |
840 |
} |
841 |
|
842 |
/* sendto_wallops_flags() |
843 |
* |
844 |
* inputs - flag types of messages to show to real opers |
845 |
* - client sending request |
846 |
* - var args input message |
847 |
* output - NONE |
848 |
* side effects - Send a wallops to local opers |
849 |
*/ |
850 |
void |
851 |
sendto_wallops_flags(unsigned int flags, const struct Client *source_p, |
852 |
const char *pattern, ...) |
853 |
{ |
854 |
dlink_node *node = NULL; |
855 |
va_list args; |
856 |
struct dbuf_block *buffer = dbuf_alloc(); |
857 |
|
858 |
if (IsClient(source_p)) |
859 |
dbuf_put_fmt(buffer, ":%s!%s@%s WALLOPS :", source_p->name, source_p->username, source_p->host); |
860 |
else |
861 |
dbuf_put_fmt(buffer, ":%s WALLOPS :", source_p->name); |
862 |
|
863 |
va_start(args, pattern); |
864 |
send_format(buffer, pattern, args); |
865 |
va_end(args); |
866 |
|
867 |
DLINK_FOREACH(node, oper_list.head) |
868 |
{ |
869 |
struct Client *client_p = node->data; |
870 |
assert(client_p->umodes & UMODE_OPER); |
871 |
|
872 |
if (HasUMode(client_p, flags) && !IsDead(client_p)) |
873 |
send_message(client_p, buffer); |
874 |
} |
875 |
|
876 |
dbuf_ref_free(buffer); |
877 |
} |