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1 | /* | |
2 | * charybdis: an advanced ircd. | |
3 | * parse.c: The message parser. | |
4 | * | |
5 | * Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center | |
6 | * Copyright (C) 1996-2002 Hybrid Development Team | |
7 | * Copyright (C) 2002-2005 ircd-ratbox development team | |
8 | * Copyright (C) 2007 William Pitcock | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License as published by | |
12 | * the Free Software Foundation; either version 2 of the License, or | |
13 | * (at your option) any later version. | |
14 | * | |
15 | * This program is distributed in the hope that it will be useful, | |
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | * GNU General Public License for more details. | |
19 | * | |
20 | * You should have received a copy of the GNU General Public License | |
21 | * along with this program; if not, write to the Free Software | |
22 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 | |
23 | * USA | |
24 | * | |
25 | * $Id: parse.c 3177 2007-02-01 00:19:14Z jilles $ | |
26 | */ | |
27 | ||
28 | #include "stdinc.h" | |
29 | #include "parse.h" | |
30 | #include "client.h" | |
31 | #include "channel.h" | |
32 | #include "common.h" | |
33 | #include "hash.h" | |
34 | #include "irc_string.h" | |
35 | #include "sprintf_irc.h" | |
36 | #include "ircd.h" | |
37 | #include "numeric.h" | |
38 | #include "s_log.h" | |
39 | #include "s_stats.h" | |
40 | #include "send.h" | |
41 | #include "msg.h" | |
42 | #include "s_conf.h" | |
43 | #include "memory.h" | |
44 | #include "s_serv.h" | |
45 | #include "packet.h" | |
46 | ||
47 | static struct Dictionary *cmd_dict = NULL; | |
48 | struct Dictionary *alias_dict = NULL; | |
49 | ||
50 | /* | |
51 | * NOTE: parse() should not be called recursively by other functions! | |
52 | */ | |
53 | static char *sender; | |
54 | ||
55 | /* parv[0] == source, and parv[LAST] == NULL */ | |
56 | static char *para[MAXPARA + 2]; | |
57 | ||
58 | static void cancel_clients(struct Client *, struct Client *, char *); | |
59 | static void remove_unknown(struct Client *, char *, char *); | |
60 | ||
61 | static void do_numeric(char[], struct Client *, struct Client *, int, char **); | |
62 | static void do_alias(struct alias_entry *, struct Client *, char *); | |
63 | ||
64 | static int handle_command(struct Message *, struct Client *, struct Client *, int, const char**); | |
65 | ||
66 | static char buffer[1024]; | |
67 | ||
68 | /* turn a string into a parc/parv pair */ | |
69 | ||
70 | ||
71 | static inline int | |
72 | string_to_array(char *string, char **parv) | |
73 | { | |
74 | char *p, *buf = string; | |
75 | int x = 1; | |
76 | ||
77 | parv[x] = NULL; | |
78 | while (*buf == ' ') /* skip leading spaces */ | |
79 | buf++; | |
80 | if(*buf == '\0') /* ignore all-space args */ | |
81 | return x; | |
82 | ||
83 | do | |
84 | { | |
85 | if(*buf == ':') /* Last parameter */ | |
86 | { | |
87 | buf++; | |
88 | parv[x++] = buf; | |
89 | parv[x] = NULL; | |
90 | return x; | |
91 | } | |
92 | else | |
93 | { | |
94 | parv[x++] = buf; | |
95 | parv[x] = NULL; | |
96 | if((p = strchr(buf, ' ')) != NULL) | |
97 | { | |
98 | *p++ = '\0'; | |
99 | buf = p; | |
100 | } | |
101 | else | |
102 | return x; | |
103 | } | |
104 | while (*buf == ' ') | |
105 | buf++; | |
106 | if(*buf == '\0') | |
107 | return x; | |
108 | } | |
109 | /* we can go upto parv[MAXPARA], as parv[0] is taken by source */ | |
110 | while (x < MAXPARA); | |
111 | ||
112 | if(*p == ':') | |
113 | p++; | |
114 | ||
115 | parv[x++] = p; | |
116 | parv[x] = NULL; | |
117 | return x; | |
118 | } | |
119 | ||
120 | /* parse() | |
121 | * | |
122 | * given a raw buffer, parses it and generates parv, parc and sender | |
123 | */ | |
124 | void | |
125 | parse(struct Client *client_p, char *pbuffer, char *bufend) | |
126 | { | |
127 | struct Client *from = client_p; | |
128 | char *ch; | |
129 | char *s; | |
130 | char *end; | |
131 | int i = 1; | |
132 | char *numeric = 0; | |
133 | struct Message *mptr; | |
134 | ||
135 | s_assert(MyConnect(client_p)); | |
136 | s_assert(client_p->localClient->fd >= 0); | |
137 | if(IsAnyDead(client_p)) | |
138 | return; | |
139 | ||
140 | for (ch = pbuffer; *ch == ' '; ch++) /* skip spaces */ | |
141 | /* null statement */ ; | |
142 | ||
143 | para[0] = from->name; | |
144 | ||
145 | if(*ch == ':') | |
146 | { | |
147 | ch++; | |
148 | ||
149 | /* point sender to the sender param */ | |
150 | sender = ch; | |
151 | ||
152 | if((s = strchr(ch, ' '))) | |
153 | { | |
154 | *s = '\0'; | |
155 | s++; | |
156 | ch = s; | |
157 | } | |
158 | ||
159 | if(*sender && IsServer(client_p)) | |
160 | { | |
161 | from = find_client(sender); | |
162 | ||
163 | /* didnt find any matching client, issue a kill */ | |
164 | if(from == NULL) | |
165 | { | |
166 | ServerStats->is_unpf++; | |
167 | remove_unknown(client_p, sender, pbuffer); | |
168 | return; | |
169 | } | |
170 | ||
171 | para[0] = from->name; | |
172 | ||
173 | /* fake direction, hmm. */ | |
174 | if(from->from != client_p) | |
175 | { | |
176 | ServerStats->is_wrdi++; | |
177 | cancel_clients(client_p, from, pbuffer); | |
178 | return; | |
179 | } | |
180 | } | |
181 | while (*ch == ' ') | |
182 | ch++; | |
183 | } | |
184 | ||
185 | if(*ch == '\0') | |
186 | { | |
187 | ServerStats->is_empt++; | |
188 | return; | |
189 | } | |
190 | ||
191 | /* at this point there must be some sort of command parameter */ | |
192 | ||
193 | /* | |
194 | * Extract the command code from the packet. Point s to the end | |
195 | * of the command code and calculate the length using pointer | |
196 | * arithmetic. Note: only need length for numerics and *all* | |
197 | * numerics must have parameters and thus a space after the command | |
198 | * code. -avalon | |
199 | */ | |
200 | ||
201 | /* EOB is 3 chars long but is not a numeric */ | |
202 | ||
203 | if(*(ch + 3) == ' ' && /* ok, lets see if its a possible numeric.. */ | |
204 | IsDigit(*ch) && IsDigit(*(ch + 1)) && IsDigit(*(ch + 2))) | |
205 | { | |
206 | mptr = NULL; | |
207 | numeric = ch; | |
208 | ServerStats->is_num++; | |
209 | s = ch + 3; /* I know this is ' ' from above if */ | |
210 | *s++ = '\0'; /* blow away the ' ', and point s to next part */ | |
211 | } | |
212 | else | |
213 | { | |
214 | int ii = 0; | |
215 | ||
216 | if((s = strchr(ch, ' '))) | |
217 | *s++ = '\0'; | |
218 | ||
219 | mptr = irc_dictionary_retrieve(cmd_dict, ch); | |
220 | ||
221 | /* no command or its encap only, error */ | |
222 | if(!mptr || !mptr->cmd) | |
223 | { | |
224 | /* | |
225 | * Note: Give error message *only* to recognized | |
226 | * persons. It's a nightmare situation to have | |
227 | * two programs sending "Unknown command"'s or | |
228 | * equivalent to each other at full blast.... | |
229 | * If it has got to person state, it at least | |
230 | * seems to be well behaving. Perhaps this message | |
231 | * should never be generated, though... --msa | |
232 | * Hm, when is the buffer empty -- if a command | |
233 | * code has been found ?? -Armin | |
234 | */ | |
235 | if(pbuffer[0] != '\0') | |
236 | { | |
237 | if (IsPerson(client_p)) | |
238 | { | |
239 | struct alias_entry *aptr = irc_dictionary_retrieve(alias_dict, ch); | |
240 | if (aptr != NULL) | |
241 | { | |
242 | do_alias(aptr, client_p, s); | |
243 | return; | |
244 | } | |
245 | } | |
246 | if(IsPerson(from)) | |
247 | { | |
248 | sendto_one(from, form_str(ERR_UNKNOWNCOMMAND), | |
249 | me.name, from->name, ch); | |
250 | } | |
251 | } | |
252 | ServerStats->is_unco++; | |
253 | return; | |
254 | } | |
255 | ||
256 | ii = bufend - ((s) ? s : ch); | |
257 | mptr->bytes += ii; | |
258 | } | |
259 | ||
260 | end = bufend - 1; | |
261 | ||
262 | /* XXX this should be done before parse() is called */ | |
263 | if(*end == '\n') | |
264 | *end-- = '\0'; | |
265 | if(*end == '\r') | |
266 | *end = '\0'; | |
267 | ||
268 | if(s != NULL) | |
269 | i = string_to_array(s, para); | |
270 | ||
271 | if(mptr == NULL) | |
272 | { | |
273 | do_numeric(numeric, client_p, from, i, para); | |
274 | return; | |
275 | } | |
276 | ||
277 | if(handle_command(mptr, client_p, from, i, /* XXX discards const!!! */ (const char **)para) < -1) | |
278 | { | |
279 | char *p; | |
280 | for (p = pbuffer; p <= end; p += 8) | |
281 | { | |
282 | /* HACK HACK */ | |
283 | /* Its expected this nasty code can be removed | |
284 | * or rewritten later if still needed. | |
285 | */ | |
286 | if((unsigned long) (p + 8) > (unsigned long) end) | |
287 | { | |
288 | for (; p <= end; p++) | |
289 | { | |
290 | ilog(L_MAIN, "%02x |%c", p[0], p[0]); | |
291 | } | |
292 | } | |
293 | else | |
294 | ilog(L_MAIN, | |
295 | "%02x %02x %02x %02x %02x %02x %02x %02x |%c%c%c%c%c%c%c%c", | |
296 | p[0], p[1], p[2], p[3], p[4], p[5], | |
297 | p[6], p[7], p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7]); | |
298 | } | |
299 | } | |
300 | ||
301 | } | |
302 | ||
303 | /* | |
304 | * handle_command | |
305 | * | |
306 | * inputs - pointer to message block | |
307 | * - pointer to client | |
308 | * - pointer to client message is from | |
309 | * - count of number of args | |
310 | * - pointer to argv[] array | |
311 | * output - -1 if error from server | |
312 | * side effects - | |
313 | */ | |
314 | static int | |
315 | handle_command(struct Message *mptr, struct Client *client_p, | |
316 | struct Client *from, int i, const char** hpara) | |
317 | { | |
318 | struct MessageEntry ehandler; | |
319 | MessageHandler handler = 0; | |
320 | char squitreason[80]; | |
321 | ||
322 | if(IsAnyDead(client_p)) | |
323 | return -1; | |
324 | ||
325 | if(IsServer(client_p)) | |
326 | mptr->rcount++; | |
327 | ||
328 | mptr->count++; | |
329 | ||
330 | /* New patch to avoid server flooding from unregistered connects | |
331 | - Pie-Man 07/27/2000 */ | |
332 | ||
333 | if(!IsRegistered(client_p)) | |
334 | { | |
335 | /* if its from a possible server connection | |
336 | * ignore it.. more than likely its a header thats sneaked through | |
337 | */ | |
338 | ||
339 | if(IsAnyServer(client_p) && !(mptr->flags & MFLG_UNREG)) | |
340 | return (1); | |
341 | } | |
342 | ||
343 | ehandler = mptr->handlers[from->handler]; | |
344 | handler = ehandler.handler; | |
345 | ||
346 | /* check right amount of params is passed... --is */ | |
347 | if(i < ehandler.min_para || | |
348 | (ehandler.min_para && EmptyString(hpara[ehandler.min_para - 1]))) | |
349 | { | |
350 | if(!IsServer(client_p)) | |
351 | { | |
352 | sendto_one(client_p, form_str(ERR_NEEDMOREPARAMS), | |
353 | me.name, | |
354 | EmptyString(client_p->name) ? "*" : client_p->name, | |
355 | mptr->cmd); | |
356 | if(MyClient(client_p)) | |
357 | return (1); | |
358 | else | |
359 | return (-1); | |
360 | } | |
361 | ||
362 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
363 | "Dropping server %s due to (invalid) command '%s'" | |
364 | " with only %d arguments (expecting %d).", | |
365 | client_p->name, mptr->cmd, i, ehandler.min_para); | |
366 | ilog(L_SERVER, | |
367 | "Insufficient parameters (%d < %d) for command '%s' from %s.", | |
368 | i, ehandler.min_para, mptr->cmd, client_p->name); | |
369 | snprintf(squitreason, sizeof squitreason, | |
370 | "Insufficient parameters (%d < %d) for command '%s'", | |
371 | i, ehandler.min_para, mptr->cmd); | |
372 | exit_client(client_p, client_p, client_p, squitreason); | |
373 | return (-1); | |
374 | } | |
375 | ||
376 | (*handler) (client_p, from, i, hpara); | |
377 | return (1); | |
378 | } | |
379 | ||
380 | void | |
381 | handle_encap(struct Client *client_p, struct Client *source_p, | |
382 | const char *command, int parc, const char *parv[]) | |
383 | { | |
384 | struct Message *mptr; | |
385 | struct MessageEntry ehandler; | |
386 | MessageHandler handler = 0; | |
387 | ||
388 | parv[0] = source_p->name; | |
389 | ||
390 | mptr = irc_dictionary_retrieve(cmd_dict, command); | |
391 | ||
392 | if(mptr == NULL || mptr->cmd == NULL) | |
393 | return; | |
394 | ||
395 | ehandler = mptr->handlers[ENCAP_HANDLER]; | |
396 | handler = ehandler.handler; | |
397 | ||
398 | if(parc < ehandler.min_para || | |
399 | (ehandler.min_para && EmptyString(parv[ehandler.min_para - 1]))) | |
400 | return; | |
401 | ||
402 | (*handler) (client_p, source_p, parc, parv); | |
403 | } | |
404 | ||
405 | /* | |
406 | * clear_hash_parse() | |
407 | * | |
408 | * inputs - | |
409 | * output - NONE | |
410 | * side effects - MUST MUST be called at startup ONCE before | |
411 | * any other keyword hash routine is used. | |
412 | * | |
413 | */ | |
414 | void | |
415 | clear_hash_parse() | |
416 | { | |
417 | cmd_dict = irc_dictionary_create(strcasecmp); | |
418 | } | |
419 | ||
420 | /* mod_add_cmd | |
421 | * | |
422 | * inputs - command name | |
423 | * - pointer to struct Message | |
424 | * output - none | |
425 | * side effects - load this one command name | |
426 | * msg->count msg->bytes is modified in place, in | |
427 | * modules address space. Might not want to do that... | |
428 | */ | |
429 | void | |
430 | mod_add_cmd(struct Message *msg) | |
431 | { | |
432 | s_assert(msg != NULL); | |
433 | if(msg == NULL) | |
434 | return; | |
435 | ||
436 | if (irc_dictionary_find(cmd_dict, msg->cmd) != NULL) | |
437 | return; | |
438 | ||
439 | msg->count = 0; | |
440 | msg->rcount = 0; | |
441 | msg->bytes = 0; | |
442 | ||
443 | irc_dictionary_add(cmd_dict, msg->cmd, msg); | |
444 | } | |
445 | ||
446 | /* mod_del_cmd | |
447 | * | |
448 | * inputs - command name | |
449 | * output - none | |
450 | * side effects - unload this one command name | |
451 | */ | |
452 | void | |
453 | mod_del_cmd(struct Message *msg) | |
454 | { | |
455 | s_assert(msg != NULL); | |
456 | if(msg == NULL) | |
457 | return; | |
458 | ||
459 | irc_dictionary_delete(cmd_dict, msg->cmd); | |
460 | } | |
461 | ||
462 | /* | |
463 | * report_messages | |
464 | * | |
465 | * inputs - pointer to client to report to | |
466 | * output - NONE | |
467 | * side effects - NONE | |
468 | */ | |
469 | void | |
470 | report_messages(struct Client *source_p) | |
471 | { | |
472 | struct DictionaryIter iter; | |
473 | struct Message *msg; | |
474 | struct alias_entry *amsg; | |
475 | ||
476 | DICTIONARY_FOREACH(msg, &iter, cmd_dict) | |
477 | { | |
478 | s_assert(msg->cmd != NULL); | |
479 | sendto_one_numeric(source_p, RPL_STATSCOMMANDS, | |
480 | form_str(RPL_STATSCOMMANDS), | |
481 | msg->cmd, msg->count, | |
482 | msg->bytes, msg->rcount); | |
483 | } | |
484 | ||
485 | DICTIONARY_FOREACH(amsg, &iter, alias_dict) | |
486 | { | |
487 | s_assert(amsg->name != NULL); | |
488 | sendto_one_numeric(source_p, RPL_STATSCOMMANDS, | |
489 | form_str(RPL_STATSCOMMANDS), | |
490 | amsg->name, amsg->hits, 0, 0); | |
491 | } | |
492 | } | |
493 | ||
494 | /* cancel_clients() | |
495 | * | |
496 | * inputs - client who sent us the message, client with fake | |
497 | * direction, command | |
498 | * outputs - a given warning about the fake direction | |
499 | * side effects - | |
500 | */ | |
501 | static void | |
502 | cancel_clients(struct Client *client_p, struct Client *source_p, char *cmd) | |
503 | { | |
504 | /* ok, fake prefix happens naturally during a burst on a nick | |
505 | * collision with TS5, we cant kill them because one client has to | |
506 | * survive, so we just send an error. | |
507 | */ | |
508 | if(IsServer(source_p) || IsMe(source_p)) | |
509 | { | |
510 | sendto_realops_snomask(SNO_DEBUG, L_ALL, | |
511 | "Message for %s[%s] from %s", | |
512 | source_p->name, source_p->from->name, | |
513 | get_server_name(client_p, SHOW_IP)); | |
514 | } | |
515 | else | |
516 | { | |
517 | sendto_realops_snomask(SNO_DEBUG, L_ALL, | |
518 | "Message for %s[%s@%s!%s] from %s (TS, ignored)", | |
519 | source_p->name, | |
520 | source_p->username, | |
521 | source_p->host, | |
522 | source_p->from->name, | |
523 | get_server_name(client_p, SHOW_IP)); | |
524 | } | |
525 | } | |
526 | ||
527 | /* remove_unknown() | |
528 | * | |
529 | * inputs - client who gave us message, supposed sender, buffer | |
530 | * output - | |
531 | * side effects - kills issued for clients, squits for servers | |
532 | */ | |
533 | static void | |
534 | remove_unknown(struct Client *client_p, char *lsender, char *lbuffer) | |
535 | { | |
536 | int slen = strlen(lsender); | |
537 | ||
538 | /* meepfoo is a nickname (KILL) | |
539 | * #XXXXXXXX is a UID (KILL) | |
540 | * #XX is a SID (SQUIT) | |
541 | * meep.foo is a server (SQUIT) | |
542 | */ | |
543 | if((IsDigit(lsender[0]) && slen == 3) || | |
544 | (strchr(lsender, '.') != NULL)) | |
545 | { | |
546 | sendto_realops_snomask(SNO_DEBUG, L_ALL, | |
547 | "Unknown prefix (%s) from %s, Squitting %s", | |
548 | lbuffer, get_server_name(client_p, SHOW_IP), lsender); | |
549 | ||
550 | sendto_one(client_p, | |
551 | ":%s SQUIT %s :(Unknown prefix (%s) from %s)", | |
552 | get_id(&me, client_p), lsender, | |
553 | lbuffer, client_p->name); | |
554 | } | |
555 | else | |
556 | sendto_one(client_p, ":%s KILL %s :%s (Unknown Client)", | |
557 | get_id(&me, client_p), lsender, me.name); | |
558 | } | |
559 | ||
560 | ||
561 | ||
562 | /* | |
563 | * | |
564 | * parc number of arguments ('sender' counted as one!) | |
565 | * parv[0] pointer to 'sender' (may point to empty string) (not used) | |
566 | * parv[1]..parv[parc-1] | |
567 | * pointers to additional parameters, this is a NULL | |
568 | * terminated list (parv[parc] == NULL). | |
569 | * | |
570 | * *WARNING* | |
571 | * Numerics are mostly error reports. If there is something | |
572 | * wrong with the message, just *DROP* it! Don't even think of | |
573 | * sending back a neat error message -- big danger of creating | |
574 | * a ping pong error message... | |
575 | */ | |
576 | static void | |
577 | do_numeric(char numeric[], struct Client *client_p, struct Client *source_p, int parc, char *parv[]) | |
578 | { | |
579 | struct Client *target_p; | |
580 | struct Channel *chptr; | |
581 | ||
582 | if(parc < 2 || !IsServer(source_p)) | |
583 | return; | |
584 | ||
585 | /* Remap low number numerics. */ | |
586 | if(numeric[0] == '0') | |
587 | numeric[0] = '1'; | |
588 | ||
589 | /* | |
590 | * Prepare the parameter portion of the message into 'buffer'. | |
591 | * (Because the buffer is twice as large as the message buffer | |
592 | * for the socket, no overflow can occur here... ...on current | |
593 | * assumptions--bets are off, if these are changed --msa) | |
594 | * Note: if buffer is non-empty, it will begin with SPACE. | |
595 | */ | |
596 | if(parc > 1) | |
597 | { | |
598 | char *t = buffer; /* Current position within the buffer */ | |
599 | int i; | |
600 | int tl; /* current length of presently being built string in t */ | |
601 | for (i = 2; i < (parc - 1); i++) | |
602 | { | |
603 | tl = ircsprintf(t, " %s", parv[i]); | |
604 | t += tl; | |
605 | } | |
606 | ircsprintf(t, " :%s", parv[parc - 1]); | |
607 | } | |
608 | ||
609 | if((target_p = find_client(parv[1])) != NULL) | |
610 | { | |
611 | if(IsMe(target_p)) | |
612 | { | |
613 | /* | |
614 | * We shouldn't get numerics sent to us, | |
615 | * any numerics we do get indicate a bug somewhere.. | |
616 | */ | |
617 | /* ugh. this is here because of nick collisions. when two servers | |
618 | * relink, they burst each other their nicks, then perform collides. | |
619 | * if there is a nick collision, BOTH servers will kill their own | |
620 | * nicks, and BOTH will kill the other servers nick, which wont exist, | |
621 | * because it will have been already killed by the local server. | |
622 | * | |
623 | * unfortunately, as we cant guarantee other servers will do the | |
624 | * "right thing" on a nick collision, we have to keep both kills. | |
625 | * ergo we need to ignore ERR_NOSUCHNICK. --fl_ | |
626 | */ | |
627 | /* quick comment. This _was_ tried. i.e. assume the other servers | |
628 | * will do the "right thing" and kill a nick that is colliding. | |
629 | * unfortunately, it did not work. --Dianora | |
630 | */ | |
631 | /* note, now we send PING on server connect, we can | |
632 | * also get ERR_NOSUCHSERVER.. | |
633 | */ | |
634 | if(atoi(numeric) != ERR_NOSUCHNICK && | |
635 | atoi(numeric) != ERR_NOSUCHSERVER) | |
636 | sendto_realops_snomask(SNO_GENERAL, L_ADMIN, | |
637 | "*** %s(via %s) sent a %s numeric to me: %s", | |
638 | source_p->name, | |
639 | client_p->name, numeric, buffer); | |
640 | return; | |
641 | } | |
642 | else if(target_p->from == client_p) | |
643 | { | |
644 | /* This message changed direction (nick collision?) | |
645 | * ignore it. | |
646 | */ | |
647 | return; | |
648 | } | |
649 | ||
650 | /* csircd will send out unknown umode flag for +a (admin), drop it here. */ | |
651 | if((atoi(numeric) == ERR_UMODEUNKNOWNFLAG) && MyClient(target_p)) | |
652 | return; | |
653 | ||
654 | /* Fake it for server hiding, if its our client */ | |
655 | sendto_one(target_p, ":%s %s %s%s", | |
656 | get_id(source_p, target_p), numeric, | |
657 | get_id(target_p, target_p), buffer); | |
658 | return; | |
659 | } | |
660 | else if((chptr = find_channel(parv[1])) != NULL) | |
661 | sendto_channel_flags(client_p, ALL_MEMBERS, source_p, chptr, | |
662 | "%s %s%s", | |
663 | numeric, chptr->chname, buffer); | |
664 | } | |
665 | ||
666 | static void do_alias(struct alias_entry *aptr, struct Client *source_p, char *text) | |
667 | { | |
668 | char *p; | |
669 | struct Client *target_p; | |
670 | ||
671 | if (!IsFloodDone(source_p) && source_p->localClient->receiveM > 20) | |
672 | flood_endgrace(source_p); | |
673 | ||
674 | p = strchr(aptr->target, '@'); | |
675 | if (p != NULL) | |
676 | { | |
677 | /* user@server */ | |
678 | target_p = find_server(NULL, p + 1); | |
679 | if (target_p != NULL && IsMe(target_p)) | |
680 | target_p = NULL; | |
681 | } | |
682 | else | |
683 | { | |
684 | /* nick, must be +S */ | |
685 | target_p = find_named_person(aptr->target); | |
686 | if (target_p != NULL && !IsService(target_p)) | |
687 | target_p = NULL; | |
688 | } | |
689 | ||
690 | if (target_p == NULL) | |
691 | { | |
692 | sendto_one_numeric(source_p, ERR_SERVICESDOWN, form_str(ERR_SERVICESDOWN), aptr->target); | |
693 | return; | |
694 | } | |
695 | ||
696 | if (text != NULL && *text == ':') | |
697 | text++; | |
698 | if (text == NULL || *text == '\0') | |
699 | { | |
700 | sendto_one(source_p, form_str(ERR_NOTEXTTOSEND), me.name, source_p->name); | |
701 | return; | |
702 | } | |
703 | ||
704 | /* increment the hitcounter on this alias */ | |
705 | aptr->hits++; | |
706 | ||
707 | sendto_one(target_p, ":%s PRIVMSG %s :%s", | |
708 | get_id(source_p, target_p), | |
709 | p != NULL ? aptr->target : get_id(target_p, target_p), | |
710 | text); | |
711 | } | |
712 | ||
713 | int | |
714 | m_not_oper(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) | |
715 | { | |
716 | sendto_one_numeric(source_p, ERR_NOPRIVILEGES, form_str(ERR_NOPRIVILEGES)); | |
717 | return 0; | |
718 | } | |
719 | ||
720 | int | |
721 | m_unregistered(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) | |
722 | { | |
723 | /* bit of a hack. | |
724 | * I don't =really= want to waste a bit in a flag | |
725 | * number_of_nick_changes is only really valid after the client | |
726 | * is fully registered.. | |
727 | */ | |
728 | if(client_p->localClient->number_of_nick_changes == 0) | |
729 | { | |
730 | sendto_one(client_p, form_str(ERR_NOTREGISTERED), me.name); | |
731 | client_p->localClient->number_of_nick_changes++; | |
732 | } | |
733 | ||
734 | return 0; | |
735 | } | |
736 | ||
737 | int | |
738 | m_registered(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) | |
739 | { | |
740 | sendto_one(client_p, form_str(ERR_ALREADYREGISTRED), me.name, source_p->name); | |
741 | return 0; | |
742 | } | |
743 | ||
744 | int | |
745 | m_ignore(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) | |
746 | { | |
747 | return 0; | |
748 | } |