ViewVC Help
View File | Revision Log | Show Annotations | View Changeset | Root Listing
root/svn/ircd-hybrid-7.2/src/s_user.c
Revision: 983
Committed: Thu Aug 13 22:32:54 2009 UTC (14 years, 7 months ago) by michael
Content type: text/x-csrc
File size: 41366 byte(s)
Log Message:
- fixed bug where unregistered clients were not able to complete registration
  process with /quote PONG <ping_cookie> in case the client was assigned a
  zero value ping-cookie

File Contents

# Content
1 /*
2 * ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
3 * s_user.c: User related functions.
4 *
5 * Copyright (C) 2002 by the past and present ircd coders, and others.
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
20 * USA
21 *
22 * $Id$
23 */
24
25 #include "stdinc.h"
26 #include "tools.h"
27 #include "s_user.h"
28 #include "s_misc.h"
29 #include "channel.h"
30 #include "channel_mode.h"
31 #include "client.h"
32 #include "common.h"
33 #include "fdlist.h"
34 #include "hash.h"
35 #include "irc_string.h"
36 #include "sprintf_irc.h"
37 #include "s_bsd.h"
38 #include "ircd.h"
39 #include "list.h"
40 #include "listener.h"
41 #include "motd.h"
42 #include "numeric.h"
43 #include "s_conf.h"
44 #include "s_log.h"
45 #include "s_serv.h"
46 #include "send.h"
47 #include "supported.h"
48 #include "whowas.h"
49 #include "memory.h"
50 #include "packet.h"
51 #include "rng_mt.h"
52 #include "userhost.h"
53 #include "hook.h"
54 #include "s_misc.h"
55 #include "msg.h"
56 #include "pcre.h"
57 #include "watch.h"
58
59 int MaxClientCount = 1;
60 int MaxConnectionCount = 1;
61 struct Callback *entering_umode_cb = NULL;
62 struct Callback *umode_cb = NULL;
63 struct Callback *uid_get_cb = NULL;
64
65 static char umode_buffer[IRCD_BUFSIZE];
66
67 static void user_welcome(struct Client *);
68 static void report_and_set_user_flags(struct Client *, const struct AccessItem *);
69 static int check_xline(struct Client *);
70 static void introduce_client(struct Client *, struct Client *);
71 static void *uid_get(va_list);
72
73 /* Used for building up the isupport string,
74 * used with init_isupport, add_isupport, delete_isupport
75 */
76
77 struct Isupport
78 {
79 dlink_node node;
80 char *name;
81 char *options;
82 int number;
83 };
84
85 static dlink_list support_list = { NULL, NULL, 0 };
86 MessageFile *isupportFile;
87
88 /* memory is cheap. map 0-255 to equivalent mode */
89 unsigned int user_modes[256] =
90 {
91 /* 0x00 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x0F */
92 /* 0x10 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x1F */
93 /* 0x20 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x2F */
94 /* 0x30 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x3F */
95 0, /* @ */
96 0, /* A */
97 0, /* B */
98 UMODE_CCONN_FULL, /* C */
99 UMODE_DEAF, /* D */
100 0, /* E */
101 0, /* F */
102 UMODE_SOFTCALLERID, /* G */
103 0, /* H */
104 0, /* I */
105 0, /* J */
106 0, /* K */
107 0, /* L */
108 0, /* M */
109 0, /* N */
110 0, /* O */
111 0, /* P */
112 0, /* Q */
113 0, /* R */
114 0, /* S */
115 0, /* T */
116 0, /* U */
117 0, /* V */
118 0, /* W */
119 0, /* X */
120 0, /* Y */
121 0, /* Z 0x5A */
122 0, 0, 0, 0, 0, /* 0x5F */
123 0, /* 0x60 */
124 UMODE_ADMIN, /* a */
125 UMODE_BOTS, /* b */
126 UMODE_CCONN, /* c */
127 UMODE_DEBUG, /* d */
128 0, /* e */
129 UMODE_FULL, /* f */
130 UMODE_CALLERID, /* g */
131 0, /* h */
132 UMODE_INVISIBLE, /* i */
133 0, /* j */
134 UMODE_SKILL, /* k */
135 UMODE_LOCOPS, /* l */
136 0, /* m */
137 UMODE_NCHANGE, /* n */
138 UMODE_OPER, /* o */
139 0, /* p */
140 0, /* q */
141 UMODE_REJ, /* r */
142 UMODE_SERVNOTICE, /* s */
143 0, /* t */
144 UMODE_UNAUTH, /* u */
145 0, /* v */
146 UMODE_WALLOP, /* w */
147 UMODE_EXTERNAL, /* x */
148 UMODE_SPY, /* y */
149 UMODE_OPERWALL, /* z 0x7A */
150 0,0,0,0,0, /* 0x7B - 0x7F */
151
152 /* 0x80 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x8F */
153 /* 0x90 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x9F */
154 /* 0xA0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xAF */
155 /* 0xB0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xBF */
156 /* 0xC0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xCF */
157 /* 0xD0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xDF */
158 /* 0xE0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xEF */
159 /* 0xF0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 /* 0xFF */
160 };
161
162 void
163 assemble_umode_buffer(void)
164 {
165 unsigned int idx = 0;
166 char *umode_buffer_ptr = umode_buffer;
167
168 for (; idx < (sizeof(user_modes) / sizeof(int)); ++idx)
169 if (user_modes[idx])
170 *umode_buffer_ptr++ = idx;
171
172 *umode_buffer_ptr = '\0';
173 }
174
175 /* show_lusers()
176 *
177 * inputs - pointer to client
178 * output - NONE
179 * side effects - display to client user counts etc.
180 */
181 void
182 show_lusers(struct Client *source_p)
183 {
184 const char *from, *to;
185
186 if (!MyConnect(source_p) && IsCapable(source_p->from, CAP_TS6) && HasID(source_p))
187 {
188 from = me.id;
189 to = source_p->id;
190 }
191 else
192 {
193 from = me.name;
194 to = source_p->name;
195 }
196
197 if (!ConfigServerHide.hide_servers || IsOper(source_p))
198 sendto_one(source_p, form_str(RPL_LUSERCLIENT),
199 from, to, (Count.total-Count.invisi),
200 Count.invisi, dlink_list_length(&global_serv_list));
201 else
202 sendto_one(source_p, form_str(RPL_LUSERCLIENT), from, to,
203 (Count.total-Count.invisi), Count.invisi, 1);
204
205 if (Count.oper > 0)
206 sendto_one(source_p, form_str(RPL_LUSEROP),
207 from, to, Count.oper);
208
209 if (dlink_list_length(&unknown_list) > 0)
210 sendto_one(source_p, form_str(RPL_LUSERUNKNOWN),
211 from, to, dlink_list_length(&unknown_list));
212
213 if (dlink_list_length(&global_channel_list) > 0)
214 sendto_one(source_p, form_str(RPL_LUSERCHANNELS),
215 from, to, dlink_list_length(&global_channel_list));
216
217 if (!ConfigServerHide.hide_servers || IsOper(source_p))
218 {
219 sendto_one(source_p, form_str(RPL_LUSERME),
220 from, to, Count.local, Count.myserver);
221 sendto_one(source_p, form_str(RPL_LOCALUSERS),
222 from, to, Count.local, Count.max_loc,
223 Count.local, Count.max_loc);
224 }
225 else
226 {
227 sendto_one(source_p, form_str(RPL_LUSERME),
228 from, to, Count.total, 0);
229 sendto_one(source_p, form_str(RPL_LOCALUSERS),
230 from, to, Count.total, Count.max_tot,
231 Count.total, Count.max_tot);
232 }
233
234 sendto_one(source_p, form_str(RPL_GLOBALUSERS),
235 from, to, Count.total, Count.max_tot,
236 Count.total, Count.max_tot);
237
238 if (!ConfigServerHide.hide_servers || IsOper(source_p))
239 sendto_one(source_p, form_str(RPL_STATSCONN), from, to,
240 MaxConnectionCount, MaxClientCount, Count.totalrestartcount);
241
242 if (Count.local > MaxClientCount)
243 MaxClientCount = Count.local;
244
245 if ((Count.local + Count.myserver) > MaxConnectionCount)
246 MaxConnectionCount = Count.local + Count.myserver;
247 }
248
249 /* show_isupport()
250 *
251 * inputs - pointer to client
252 * output - NONE
253 * side effects - display to client what we support (for them)
254 */
255 void
256 show_isupport(struct Client *source_p)
257 {
258 send_message_file(source_p, isupportFile);
259 }
260
261 /*
262 ** register_local_user
263 ** This function is called when both NICK and USER messages
264 ** have been accepted for the client, in whatever order. Only
265 ** after this, is the USER message propagated.
266 **
267 ** NICK's must be propagated at once when received, although
268 ** it would be better to delay them too until full info is
269 ** available. Doing it is not so simple though, would have
270 ** to implement the following:
271 **
272 ** (actually it has been implemented already for a while) -orabidoo
273 **
274 ** 1) user telnets in and gives only "NICK foobar" and waits
275 ** 2) another user far away logs in normally with the nick
276 ** "foobar" (quite legal, as this server didn't propagate
277 ** it).
278 ** 3) now this server gets nick "foobar" from outside, but
279 ** has alread the same defined locally. Current server
280 ** would just issue "KILL foobar" to clean out dups. But,
281 ** this is not fair. It should actually request another
282 ** nick from local user or kill him/her...
283 */
284 void
285 register_local_user(struct Client *client_p, struct Client *source_p,
286 const char *nick, const char *username)
287 {
288 const struct AccessItem *aconf = NULL;
289 dlink_node *ptr = NULL;
290 dlink_node *m = NULL;
291
292 assert(source_p != NULL);
293 assert(MyConnect(source_p));
294 assert(source_p->username != username);
295 assert(!source_p->localClient->registration);
296
297 ClearCap(client_p, CAP_TS6);
298
299 if (ConfigFileEntry.ping_cookie)
300 {
301 if (!IsPingSent(source_p) &&
302 source_p->localClient->random_ping == 0)
303 {
304 do
305 source_p->localClient->random_ping = genrand_int32();
306 while (!source_p->localClient->random_ping);
307
308 sendto_one(source_p, "PING :%u",
309 source_p->localClient->random_ping);
310 SetPingSent(source_p);
311 return;
312 }
313
314 if (!HasPingCookie(source_p))
315 return;
316 }
317
318 source_p->localClient->last = CurrentTime;
319 /* Straight up the maximum rate of flooding... */
320 source_p->localClient->allow_read = MAX_FLOOD_BURST;
321
322 if (!execute_callback(client_check_cb, source_p, username))
323 return;
324
325 if (valid_hostname(source_p->host) == 0)
326 {
327 sendto_one(source_p, ":%s NOTICE %s :*** Notice -- You have an illegal "
328 "character in your hostname", me.name, source_p->name);
329 strlcpy(source_p->host, source_p->sockhost,
330 sizeof(source_p->host));
331 }
332
333 ptr = source_p->localClient->confs.head;
334 aconf = map_to_conf(ptr->data);
335
336 if (!IsGotId(source_p))
337 {
338 const char *p = NULL;
339 unsigned int i = 0;
340
341 if (IsNeedIdentd(aconf))
342 {
343 ++ServerStats.is_ref;
344 sendto_one(source_p, ":%s NOTICE %s :*** Notice -- You need to install "
345 "identd to use this server", me.name, source_p->name);
346 exit_client(source_p, &me, "Install identd");
347 return;
348 }
349
350 p = username;
351
352 if (!IsNoTilde(aconf))
353 source_p->username[i++] = '~';
354
355 while (*p && i < USERLEN)
356 {
357 if (*p != '[')
358 source_p->username[i++] = *p;
359 p++;
360 }
361
362 source_p->username[i] = '\0';
363 }
364
365 /* password check */
366 if (!EmptyString(aconf->passwd))
367 {
368 const char *pass = source_p->localClient->passwd;
369
370 if (!match_conf_password(pass, aconf))
371 {
372 ++ServerStats.is_ref;
373 sendto_one(source_p, form_str(ERR_PASSWDMISMATCH),
374 me.name, source_p->name);
375 exit_client(source_p, &me, "Bad Password");
376 return;
377 }
378 }
379
380 /* don't free source_p->localClient->passwd here - it can be required
381 * by masked /stats I if there are auth{} blocks with need_password = no;
382 * --adx
383 */
384
385 /* report if user has &^>= etc. and set flags as needed in source_p */
386 report_and_set_user_flags(source_p, aconf);
387
388 if (IsDead(client_p))
389 return;
390
391 /* Limit clients -
392 * We want to be able to have servers and F-line clients
393 * connect, so save room for "buffer" connections.
394 * Smaller servers may want to decrease this, and it should
395 * probably be just a percentage of the MAXCLIENTS...
396 * -Taner
397 */
398 /* Except "F:" clients */
399 if ((Count.local >= ServerInfo.max_clients + MAX_BUFFER) ||
400 (Count.local >= ServerInfo.max_clients && !IsExemptLimits(source_p)))
401 {
402 sendto_realops_flags(UMODE_FULL, L_ALL,
403 "Too many clients, rejecting %s[%s].",
404 nick, source_p->host);
405 ++ServerStats.is_ref;
406 exit_client(source_p, &me, "Sorry, server is full - try later");
407 return;
408 }
409
410 /* valid user name check */
411 if (valid_username(source_p->username) == 0)
412 {
413 char tmpstr2[IRCD_BUFSIZE];
414
415 sendto_realops_flags(UMODE_REJ, L_ALL, "Invalid username: %s (%s@%s)",
416 nick, source_p->username, source_p->host);
417 ++ServerStats.is_ref;
418 ircsprintf(tmpstr2, "Invalid username [%s]", source_p->username);
419 exit_client(source_p, &me, tmpstr2);
420 return;
421 }
422
423 assert(source_p == client_p);
424
425 if (check_xline(source_p))
426 return;
427
428 if (me.id[0])
429 {
430 const char *id = execute_callback(uid_get_cb, source_p);
431
432 while (hash_find_id(id) != NULL)
433 id = uid_get(NULL);
434
435 strlcpy(source_p->id, id, sizeof(source_p->id));
436 hash_add_id(source_p);
437 }
438
439 sendto_realops_flags(UMODE_CCONN, L_ALL,
440 "Client connecting: %s (%s@%s) [%s] {%s} [%s]",
441 nick, source_p->username, source_p->host,
442 ConfigFileEntry.hide_spoof_ips && IsIPSpoof(source_p) ?
443 "255.255.255.255" : source_p->sockhost,
444 get_client_class(source_p),
445 source_p->info);
446
447 sendto_realops_flags(UMODE_CCONN_FULL, L_ALL,
448 "CLICONN %s %s %s %s %s %s %s 0 %s",
449 nick, source_p->username, source_p->host,
450 ConfigFileEntry.hide_spoof_ips && IsIPSpoof(source_p) ?
451 "255.255.255.255" : source_p->sockhost,
452 get_client_class(source_p),
453 ConfigFileEntry.hide_spoof_ips && IsIPSpoof(source_p) ?
454 "<hidden>" : source_p->client_host,
455 ConfigFileEntry.hide_spoof_ips && IsIPSpoof(source_p) ?
456 "<hidden>" : source_p->client_server,
457 source_p->info);
458
459
460 if (ConfigFileEntry.invisible_on_connect)
461 {
462 source_p->umodes |= UMODE_INVISIBLE;
463 ++Count.invisi;
464 }
465
466 if ((++Count.local) > Count.max_loc)
467 {
468 Count.max_loc = Count.local;
469
470 if (!(Count.max_loc % 10))
471 sendto_realops_flags(UMODE_ALL, L_ALL, "New Max Local Clients: %d",
472 Count.max_loc);
473 }
474
475 SetClient(source_p);
476
477 source_p->servptr = &me;
478 dlinkAdd(source_p, &source_p->lnode, &source_p->servptr->serv->client_list);
479
480 /* Increment our total user count here */
481 if (++Count.total > Count.max_tot)
482 Count.max_tot = Count.total;
483 ++Count.totalrestartcount;
484
485 source_p->localClient->allow_read = MAX_FLOOD_BURST;
486
487 if ((m = dlinkFindDelete(&unknown_list, source_p)) != NULL)
488 {
489 free_dlink_node(m);
490 dlinkAdd(source_p, &source_p->localClient->lclient_node, &local_client_list);
491 }
492 else assert(0);
493
494 user_welcome(source_p);
495 add_user_host(source_p->username, source_p->host, 0);
496 SetUserHost(source_p);
497
498 introduce_client(client_p, source_p);
499 }
500
501 /* register_remote_user()
502 *
503 * inputs - client_p directly connected client
504 * - source_p remote or directly connected client
505 * - username to register as
506 * - host name to register as
507 * - server name
508 * - realname (gecos)
509 * output - NONE
510 * side effects - This function is called when a remote client
511 * is introduced by a server.
512 */
513 void
514 register_remote_user(struct Client *client_p, struct Client *source_p,
515 const char *username, const char *host, const char *server,
516 const char *realname)
517 {
518 struct Client *target_p = NULL;
519
520 assert(source_p != NULL);
521 assert(source_p->username != username);
522
523 strlcpy(source_p->host, host, sizeof(source_p->host));
524 strlcpy(source_p->username, username, sizeof(source_p->username));
525
526 /*
527 * coming from another server, take the servers word for it
528 */
529 source_p->servptr = find_server(server);
530
531 /* Super GhostDetect:
532 * If we can't find the server the user is supposed to be on,
533 * then simply blow the user away. -Taner
534 */
535 if (source_p->servptr == NULL)
536 {
537 sendto_realops_flags(UMODE_ALL, L_ALL,
538 "No server %s for user %s[%s@%s] from %s",
539 server, source_p->name, source_p->username,
540 source_p->host, source_p->from->name);
541 kill_client(client_p, source_p, "%s (Server doesn't exist)", me.name);
542
543 SetKilled(source_p);
544 exit_client(source_p, &me, "Ghosted Client");
545 return;
546 }
547
548 if ((target_p = source_p->servptr) && target_p->from != source_p->from)
549 {
550 sendto_realops_flags(UMODE_DEBUG, L_ALL,
551 "Bad User [%s] :%s USER %s@%s %s, != %s[%s]",
552 client_p->name, source_p->name, source_p->username,
553 source_p->host, source_p->servptr->name,
554 target_p->name, target_p->from->name);
555 kill_client(client_p, source_p,
556 "%s (NICK from wrong direction (%s != %s))",
557 me.name, source_p->servptr->name, target_p->from->name);
558 SetKilled(source_p);
559 exit_client(source_p, &me, "USER server wrong direction");
560 return;
561 }
562
563 /* Increment our total user count here */
564 if (++Count.total > Count.max_tot)
565 Count.max_tot = Count.total;
566
567 SetClient(source_p);
568 dlinkAdd(source_p, &source_p->lnode, &source_p->servptr->serv->client_list);
569 add_user_host(source_p->username, source_p->host, 1);
570 SetUserHost(source_p);
571
572 introduce_client(client_p, source_p);
573 }
574
575 /* introduce_client()
576 *
577 * inputs - client_p
578 * - source_p
579 * output - NONE
580 * side effects - This common function introduces a client to the rest
581 * of the net, either from a local client connect or
582 * from a remote connect.
583 */
584 static void
585 introduce_client(struct Client *client_p, struct Client *source_p)
586 {
587 dlink_node *server_node = NULL;
588 static char ubuf[12];
589
590 if (MyClient(source_p))
591 send_umode(source_p, source_p, 0, SEND_UMODES, ubuf);
592 else
593 send_umode(NULL, source_p, 0, SEND_UMODES, ubuf);
594
595 watch_check_hash(source_p, RPL_LOGON);
596
597 if (*ubuf == '\0')
598 {
599 ubuf[0] = '+';
600 ubuf[1] = '\0';
601 }
602
603 DLINK_FOREACH(server_node, serv_list.head)
604 {
605 struct Client *server = server_node->data;
606
607 if (server == client_p)
608 continue;
609
610 if (IsCapable(server, CAP_TS6) && HasID(source_p))
611 sendto_one(server, ":%s UID %s %d %lu %s %s %s %s %s :%s",
612 source_p->servptr->id,
613 source_p->name, source_p->hopcount+1,
614 (unsigned long)source_p->tsinfo,
615 ubuf, source_p->username, source_p->host,
616 (MyClient(source_p) && IsIPSpoof(source_p)) ?
617 "0" : source_p->sockhost, source_p->id, source_p->info);
618 else
619 sendto_one(server, "NICK %s %d %lu %s %s %s %s :%s",
620 source_p->name, source_p->hopcount+1,
621 (unsigned long)source_p->tsinfo,
622 ubuf, source_p->username, source_p->host,
623 source_p->servptr->name, source_p->info);
624 }
625 }
626
627 /* valid_hostname()
628 *
629 * Inputs - pointer to hostname
630 * Output - 1 if valid, 0 if not
631 * Side effects - check hostname for validity
632 *
633 * NOTE: this doesn't allow a hostname to begin with a dot and
634 * will not allow more dots than chars.
635 */
636 int
637 valid_hostname(const char *hostname)
638 {
639 const char *p = hostname;
640
641 assert(p != NULL);
642
643 if ('.' == *p || ':' == *p)
644 return 0;
645
646 while (*p)
647 {
648 if (!IsHostChar(*p))
649 return 0;
650 p++;
651 }
652
653 return 1;
654 }
655
656 /* valid_username()
657 *
658 * Inputs - pointer to user
659 * Output - 1 if valid, 0 if not
660 * Side effects - check username for validity
661 *
662 * Absolutely always reject any '*' '!' '?' '@' in an user name
663 * reject any odd control characters names.
664 * Allow '.' in username to allow for "first.last"
665 * style of username
666 */
667 int
668 valid_username(const char *username)
669 {
670 int dots = 0;
671 const char *p = username;
672
673 assert(p != NULL);
674
675 if ('~' == *p)
676 ++p;
677
678 /* reject usernames that don't start with an alphanum
679 * i.e. reject jokers who have '-@somehost' or '.@somehost'
680 * or "-hi-@somehost", "h-----@somehost" would still be accepted.
681 */
682 if (!IsAlNum(*p))
683 return 0;
684
685 while (*++p)
686 {
687 if ((*p == '.') && ConfigFileEntry.dots_in_ident)
688 {
689 dots++;
690
691 if (dots > ConfigFileEntry.dots_in_ident)
692 return 0;
693 if (!IsUserChar(p[1]))
694 return 0;
695 }
696 else if (!IsUserChar(*p))
697 return 0;
698 }
699
700 return 1;
701 }
702
703 /* report_and_set_user_flags()
704 *
705 * inputs - pointer to source_p
706 * - pointer to aconf for this user
707 * output - NONE
708 * side effects - Report to user any special flags
709 * they are getting, and set them.
710 */
711 static void
712 report_and_set_user_flags(struct Client *source_p, const struct AccessItem *aconf)
713 {
714 /* If this user is being spoofed, tell them so */
715 if (IsConfDoSpoofIp(aconf))
716 {
717 sendto_one(source_p,
718 ":%s NOTICE %s :*** Spoofing your IP. congrats.",
719 me.name, source_p->name);
720 }
721
722 /* If this user is in the exception class, Set it "E lined" */
723 if (IsConfExemptKline(aconf))
724 {
725 SetExemptKline(source_p);
726 sendto_one(source_p,
727 ":%s NOTICE %s :*** You are exempt from K/D/G lines. congrats.",
728 me.name, source_p->name);
729 }
730
731 /* The else here is to make sure that G line exempt users
732 * do not get noticed twice.
733 */
734 else if (IsConfExemptGline(aconf))
735 {
736 SetExemptGline(source_p);
737 sendto_one(source_p, ":%s NOTICE %s :*** You are exempt from G lines.",
738 me.name, source_p->name);
739 }
740
741 if (IsConfExemptResv(aconf))
742 {
743 SetExemptResv(source_p);
744 sendto_one(source_p, ":%s NOTICE %s :*** You are exempt from resvs.",
745 me.name, source_p->name);
746 }
747
748 /* If this user is exempt from user limits set it "F lined" */
749 if (IsConfExemptLimits(aconf))
750 {
751 SetExemptLimits(source_p);
752 sendto_one(source_p,
753 ":%s NOTICE %s :*** You are exempt from user limits. congrats.",
754 me.name,source_p->name);
755 }
756
757 /* If this user is exempt from idle time outs */
758 if (IsConfIdlelined(aconf))
759 {
760 SetIdlelined(source_p);
761 sendto_one(source_p,
762 ":%s NOTICE %s :*** You are exempt from idle limits. congrats.",
763 me.name, source_p->name);
764 }
765
766 if (IsConfCanFlood(aconf))
767 {
768 SetCanFlood(source_p);
769 sendto_one(source_p, ":%s NOTICE %s :*** You are exempt from flood "
770 "protection, aren't you fearsome.",
771 me.name, source_p->name);
772 }
773 }
774
775 /* do_local_user()
776 *
777 * inputs -
778 * output - NONE
779 * side effects -
780 */
781 void
782 do_local_user(const char *nick, struct Client *client_p, struct Client *source_p,
783 const char *username, const char *host, const char *server,
784 const char *realname)
785 {
786 assert(source_p != NULL);
787 assert(source_p->username != username);
788
789 if (source_p == NULL)
790 return;
791
792 if (!IsUnknown(source_p))
793 {
794 sendto_one(source_p, form_str(ERR_ALREADYREGISTRED),
795 me.name, nick);
796 return;
797 }
798
799 source_p->localClient->registration &= ~REG_NEED_USER;
800
801 /*
802 * don't take the clients word for it, ever
803 */
804 source_p->servptr = &me;
805
806 strlcpy(source_p->info, realname, sizeof(source_p->info));
807
808 /* stash for later */
809 strlcpy(source_p->client_host, host, sizeof(source_p->client_host));
810 strlcpy(source_p->client_server, server, sizeof(source_p->client_server));
811
812 if (!IsGotId(source_p))
813 {
814 /* save the username in the client
815 * If you move this you'll break ping cookies..you've been warned
816 */
817 strlcpy(source_p->username, username, sizeof(source_p->username));
818 }
819
820 if (!source_p->localClient->registration)
821 /* NICK already received, now I have USER... */
822 register_local_user(client_p, source_p, source_p->name, username);
823 }
824
825 /* change_simple_umode()
826 *
827 * this callback can be hooked to allow special handling of
828 * certain usermodes
829 */
830 static void *
831 change_simple_umode(va_list args)
832 {
833 struct Client *client_p;
834 struct Client *source_p;
835 int what;
836 unsigned int flag;
837
838 client_p = va_arg(args, struct Client *);
839 source_p = va_arg(args, struct Client *);
840 what = va_arg(args, int);
841 flag = va_arg(args, unsigned int);
842
843 if (what == MODE_ADD)
844 source_p->umodes |= flag;
845 else
846 source_p->umodes &= ~flag;
847
848 return NULL;
849 }
850
851 /* set_user_mode()
852 *
853 * added 15/10/91 By Darren Reed.
854 * parv[0] - sender
855 * parv[1] - username to change mode for
856 * parv[2] - modes to change
857 */
858 void
859 set_user_mode(struct Client *client_p, struct Client *source_p,
860 int parc, char *parv[])
861 {
862 unsigned int flag, setflags;
863 char **p, *m, buf[IRCD_BUFSIZE];
864 struct Client *target_p;
865 int what = MODE_ADD, badflag = 0, i;
866
867 assert(!(parc < 2));
868
869 if ((target_p = find_person(client_p, parv[1])) == NULL)
870 {
871 if (MyConnect(source_p))
872 sendto_one(source_p, form_str(ERR_NOSUCHCHANNEL),
873 me.name, source_p->name, parv[1]);
874 return;
875 }
876
877 if (IsServer(source_p))
878 {
879 sendto_realops_flags(UMODE_ALL, L_ADMIN, "*** Mode for User %s from %s",
880 parv[1], source_p->name);
881 return;
882 }
883
884 if (source_p != target_p || target_p->from != source_p->from)
885 {
886 sendto_one(source_p, form_str(ERR_USERSDONTMATCH),
887 me.name, source_p->name);
888 return;
889 }
890
891 if (parc < 3)
892 {
893 m = buf;
894 *m++ = '+';
895
896 for (i = 0; i < 128; i++)
897 if (source_p->umodes & user_modes[i])
898 *m++ = (char)i;
899 *m = '\0';
900
901 sendto_one(source_p, form_str(RPL_UMODEIS),
902 me.name, source_p->name, buf);
903 return;
904 }
905
906 execute_callback(entering_umode_cb, client_p, source_p);
907
908 /* find flags already set for user */
909 setflags = source_p->umodes;
910
911 /* parse mode change string(s) */
912 for (p = &parv[2]; p && *p; p++)
913 {
914 for (m = *p; *m; m++)
915 {
916 switch (*m)
917 {
918 case '+':
919 what = MODE_ADD;
920 break;
921 case '-':
922 what = MODE_DEL;
923 break;
924 case 'o':
925 if (what == MODE_ADD)
926 {
927 if (IsServer(client_p) && !IsOper(source_p))
928 {
929 ++Count.oper;
930 SetOper(source_p);
931 }
932 }
933 else
934 {
935 /* Only decrement the oper counts if an oper to begin with
936 * found by Pat Szuta, Perly , perly@xnet.com
937 */
938 if (!IsOper(source_p))
939 break;
940
941 ClearOper(source_p);
942 source_p->umodes &= ~ConfigFileEntry.oper_only_umodes;
943 Count.oper--;
944
945 if (MyConnect(source_p))
946 {
947 dlink_node *dm;
948
949 detach_conf(source_p, OPER_TYPE);
950 ClearOperFlags(source_p);
951
952 if ((dm = dlinkFindDelete(&oper_list, source_p)) != NULL)
953 free_dlink_node(dm);
954 }
955 }
956
957 break;
958
959 /* we may not get these,
960 * but they shouldnt be in default
961 */
962 case ' ' :
963 case '\n':
964 case '\r':
965 case '\t':
966 break;
967
968 default:
969 if ((flag = user_modes[(unsigned char)*m]))
970 {
971 if (MyConnect(source_p) && !IsOper(source_p) &&
972 (ConfigFileEntry.oper_only_umodes & flag))
973 {
974 badflag = 1;
975 }
976 else
977 execute_callback(umode_cb, client_p, source_p, what, flag);
978 }
979 else
980 {
981 if (MyConnect(source_p))
982 badflag = 1;
983 }
984
985 break;
986 }
987 }
988 }
989
990 if (badflag)
991 sendto_one(source_p, form_str(ERR_UMODEUNKNOWNFLAG),
992 me.name, source_p->name);
993
994 if ((source_p->umodes & UMODE_NCHANGE) && !IsOperN(source_p))
995 {
996 sendto_one(source_p, ":%s NOTICE %s :*** You have no admin flag;",
997 me.name, source_p->name);
998 source_p->umodes &= ~UMODE_NCHANGE; /* only tcm's really need this */
999 }
1000
1001 if (MyConnect(source_p) && (source_p->umodes & UMODE_ADMIN) &&
1002 !IsOperAdmin(source_p) && !IsOperHiddenAdmin(source_p))
1003 {
1004 sendto_one(source_p, ":%s NOTICE %s :*** You have no admin flag;",
1005 me.name, source_p->name);
1006 source_p->umodes &= ~UMODE_ADMIN;
1007 }
1008
1009 if (!(setflags & UMODE_INVISIBLE) && IsInvisible(source_p))
1010 ++Count.invisi;
1011 if ((setflags & UMODE_INVISIBLE) && !IsInvisible(source_p))
1012 --Count.invisi;
1013
1014 /*
1015 * compare new flags with old flags and send string which
1016 * will cause servers to update correctly.
1017 */
1018 send_umode_out(client_p, source_p, setflags);
1019 }
1020
1021 /* send_umode()
1022 * send the MODE string for user (user) to connection client_p
1023 * -avalon
1024 *
1025 * inputs - client_p
1026 * - source_p
1027 * - int old
1028 * - sendmask mask of modes to send
1029 * - suplied umode_buf
1030 * output - NONE
1031 */
1032 void
1033 send_umode(struct Client *client_p, struct Client *source_p,
1034 unsigned int old, unsigned int sendmask, char *umode_buf)
1035 {
1036 int what = 0;
1037 unsigned int i;
1038 unsigned int flag;
1039 char *m = umode_buf;
1040
1041 /*
1042 * build a string in umode_buf to represent the change in the user's
1043 * mode between the new (source_p->umodes) and 'old'.
1044 */
1045 for (i = 0; i < 128; i++)
1046 {
1047 flag = user_modes[i];
1048 if (!flag)
1049 continue;
1050
1051 if (MyClient(source_p) && !(flag & sendmask))
1052 continue;
1053
1054 if ((flag & old) && !(source_p->umodes & flag))
1055 {
1056 if (what == MODE_DEL)
1057 *m++ = (char)i;
1058 else
1059 {
1060 what = MODE_DEL;
1061 *m++ = '-';
1062 *m++ = (char)i;
1063 }
1064 }
1065 else if (!(flag & old) && (source_p->umodes & flag))
1066 {
1067 if (what == MODE_ADD)
1068 *m++ = (char)i;
1069 else
1070 {
1071 what = MODE_ADD;
1072 *m++ = '+';
1073 *m++ = (char)i;
1074 }
1075 }
1076 }
1077
1078 *m = '\0';
1079
1080 if (*umode_buf && client_p)
1081 sendto_one(client_p, ":%s!%s@%s MODE %s :%s",
1082 source_p->name, source_p->username,
1083 source_p->host, source_p->name, umode_buf);
1084 }
1085
1086 /* send_umode_out()
1087 *
1088 * inputs -
1089 * output - NONE
1090 * side effects - Only send ubuf out to servers that know about this client
1091 */
1092 void
1093 send_umode_out(struct Client *client_p, struct Client *source_p,
1094 unsigned int old)
1095 {
1096 char buf[IRCD_BUFSIZE] = { '\0' };
1097 dlink_node *ptr = NULL;
1098
1099 send_umode(NULL, source_p, old, IsOperHiddenAdmin(source_p) ?
1100 SEND_UMODES & ~UMODE_ADMIN : SEND_UMODES, buf);
1101
1102 if (buf[0])
1103 {
1104 DLINK_FOREACH(ptr, serv_list.head)
1105 {
1106 struct Client *target_p = ptr->data;
1107
1108 if ((target_p != client_p) && (target_p != source_p))
1109 sendto_one(target_p, ":%s MODE %s :%s",
1110 ID_or_name(source_p, target_p),
1111 ID_or_name(source_p, target_p), buf);
1112 }
1113 }
1114
1115 if (client_p && MyClient(client_p))
1116 send_umode(client_p, source_p, old, 0xffffffff, buf);
1117 }
1118
1119 /* user_welcome()
1120 *
1121 * inputs - client pointer to client to welcome
1122 * output - NONE
1123 * side effects -
1124 */
1125 static void
1126 user_welcome(struct Client *source_p)
1127 {
1128 #if defined(__TIME__) && defined(__DATE__)
1129 static const char built_date[] = __DATE__ " at " __TIME__;
1130 #else
1131 static const char built_date[] = "unknown";
1132 #endif
1133
1134 #ifdef HAVE_LIBCRYPTO
1135 if (source_p->localClient->fd.ssl != NULL)
1136 sendto_one(source_p, ":%s NOTICE %s :*** Connected securely via %s",
1137 me.name, source_p->name,
1138 ssl_get_cipher(source_p->localClient->fd.ssl));
1139 #endif
1140
1141 sendto_one(source_p, form_str(RPL_WELCOME), me.name, source_p->name,
1142 ServerInfo.network_name, source_p->name);
1143 sendto_one(source_p, form_str(RPL_YOURHOST), me.name, source_p->name,
1144 get_listener_name(source_p->localClient->listener), ircd_version);
1145 sendto_one(source_p, form_str(RPL_CREATED),
1146 me.name, source_p->name, built_date);
1147 sendto_one(source_p, form_str(RPL_MYINFO),
1148 me.name, source_p->name, me.name, ircd_version, umode_buffer);
1149 show_isupport(source_p);
1150
1151 if (source_p->id[0] != '\0')
1152 sendto_one(source_p, form_str(RPL_YOURID), me.name,
1153 source_p->name, source_p->id);
1154
1155 show_lusers(source_p);
1156
1157 if (ConfigFileEntry.short_motd)
1158 {
1159 sendto_one(source_p, "NOTICE %s :*** Notice -- motd was last changed at %s",
1160 source_p->name, ConfigFileEntry.motd.lastChangedDate);
1161 sendto_one(source_p,
1162 "NOTICE %s :*** Notice -- Please read the motd if you haven't "
1163 "read it", source_p->name);
1164 sendto_one(source_p, form_str(RPL_MOTDSTART),
1165 me.name, source_p->name, me.name);
1166 sendto_one(source_p, form_str(RPL_MOTD),
1167 me.name, source_p->name,
1168 "*** This is the short motd ***");
1169 sendto_one(source_p, form_str(RPL_ENDOFMOTD),
1170 me.name, source_p->name);
1171 }
1172 else
1173 send_message_file(source_p, &ConfigFileEntry.motd);
1174 }
1175
1176 /* check_xline()
1177 *
1178 * inputs - pointer to client to test
1179 * outupt - 1 if exiting 0 if ok
1180 * side effects -
1181 */
1182 static int
1183 check_xline(struct Client *source_p)
1184 {
1185 struct ConfItem *conf = NULL;
1186 const char *reason = NULL;
1187
1188 if ((conf = find_matching_name_conf(XLINE_TYPE, source_p->info, NULL, NULL, 0)) ||
1189 (conf = find_matching_name_conf(RXLINE_TYPE, source_p->info, NULL, NULL, 0)))
1190 {
1191 struct MatchItem *reg = map_to_conf(conf);
1192
1193 ++reg->count;
1194
1195 if (reg->reason != NULL)
1196 reason = reg->reason;
1197 else
1198 reason = "No Reason";
1199
1200 sendto_realops_flags(UMODE_REJ, L_ALL,
1201 "X-line Rejecting [%s] [%s], user %s [%s]",
1202 source_p->info, reason,
1203 get_client_name(source_p, HIDE_IP),
1204 source_p->sockhost);
1205
1206 ++ServerStats.is_ref;
1207 if (REJECT_HOLD_TIME > 0)
1208 {
1209 sendto_one(source_p, ":%s NOTICE %s :Bad user info",
1210 me.name, source_p->name);
1211 source_p->localClient->reject_delay = CurrentTime + REJECT_HOLD_TIME;
1212 SetCaptured(source_p);
1213 }
1214 else
1215 exit_client(source_p, &me, "Bad user info");
1216 return 1;
1217 }
1218
1219 return 0;
1220 }
1221
1222 /* oper_up()
1223 *
1224 * inputs - pointer to given client to oper
1225 * output - NONE
1226 * side effects - Blindly opers up given source_p, using aconf info
1227 * all checks on passwords have already been done.
1228 * This could also be used by rsa oper routines.
1229 */
1230 void
1231 oper_up(struct Client *source_p)
1232 {
1233 unsigned int old = source_p->umodes;
1234 const char *operprivs = "";
1235 const struct AccessItem *oconf = NULL;
1236
1237 assert(source_p->localClient->confs.head);
1238 oconf = map_to_conf((source_p->localClient->confs.head)->data);
1239
1240 ++Count.oper;
1241 SetOper(source_p);
1242
1243 if (oconf->modes)
1244 source_p->umodes |= oconf->modes;
1245 else if (ConfigFileEntry.oper_umodes)
1246 source_p->umodes |= ConfigFileEntry.oper_umodes;
1247 else
1248 source_p->umodes |= (UMODE_SERVNOTICE|UMODE_OPERWALL|
1249 UMODE_WALLOP|UMODE_LOCOPS);
1250
1251 if (!(old & UMODE_INVISIBLE) && IsInvisible(source_p))
1252 ++Count.invisi;
1253 if ((old & UMODE_INVISIBLE) && !IsInvisible(source_p))
1254 --Count.invisi;
1255
1256 assert(dlinkFind(&oper_list, source_p) == NULL);
1257 dlinkAdd(source_p, make_dlink_node(), &oper_list);
1258
1259 operprivs = oper_privs_as_string(oconf->port);
1260
1261 SetOFlag(source_p, oconf->port);
1262
1263 if (IsOperAdmin(source_p) || IsOperHiddenAdmin(source_p))
1264 source_p->umodes |= UMODE_ADMIN;
1265 if (!IsOperN(source_p))
1266 source_p->umodes &= ~UMODE_NCHANGE;
1267
1268 sendto_realops_flags(UMODE_ALL, L_ALL, "%s (%s@%s) is now an operator",
1269 source_p->name, source_p->username, source_p->host);
1270 send_umode_out(source_p, source_p, old);
1271 sendto_one(source_p, form_str(RPL_YOUREOPER), me.name, source_p->name);
1272 sendto_one(source_p, ":%s NOTICE %s :*** Oper privs are %s",
1273 me.name, source_p->name, operprivs);
1274 send_message_file(source_p, &ConfigFileEntry.opermotd);
1275 }
1276
1277 static char new_uid[TOTALSIDUID + 1]; /* allow for \0 */
1278
1279 int
1280 valid_sid(const char *sid)
1281 {
1282
1283 if (strlen(sid) == IRC_MAXSID)
1284 if (IsDigit(*sid))
1285 if (IsAlNum(*(sid + 1)) && IsAlNum(*(sid + 2)))
1286 return 1;
1287
1288 return 0;
1289 }
1290
1291 /*
1292 * init_uid()
1293 *
1294 * inputs - NONE
1295 * output - NONE
1296 * side effects - new_uid is filled in with server id portion (sid)
1297 * (first 3 bytes) or defaulted to 'A'.
1298 * Rest is filled in with 'A'
1299 */
1300 void
1301 init_uid(void)
1302 {
1303 int i;
1304
1305 memset(new_uid, 0, sizeof(new_uid));
1306
1307 if (ServerInfo.sid != NULL)
1308 {
1309 strlcpy(new_uid, ServerInfo.sid, sizeof(new_uid));
1310 strlcpy(me.id, ServerInfo.sid, sizeof(me.id));
1311
1312 hash_add_id(&me);
1313 }
1314
1315 for (i = 0; i < IRC_MAXSID; i++)
1316 if (new_uid[i] == '\0')
1317 new_uid[i] = 'A';
1318
1319 /* NOTE: if IRC_MAXUID != 6, this will have to be rewritten */
1320 /* Yes nenolod, I have known it was off by one ever since I wrote it
1321 * But *JUST* for you, though, it really doesn't look as *pretty*
1322 * -Dianora
1323 */
1324 memcpy(new_uid + IRC_MAXSID, "AAAAA@", IRC_MAXUID);
1325
1326 entering_umode_cb = register_callback("entering_umode", NULL);
1327 umode_cb = register_callback("changing_umode", change_simple_umode);
1328 uid_get_cb = register_callback("uid_get", uid_get);
1329 }
1330
1331 /*
1332 * add_one_to_uid
1333 *
1334 * inputs - index number into new_uid
1335 * output - NONE
1336 * side effects - new_uid is incremented by one
1337 * note this is a recursive function
1338 */
1339 static void
1340 add_one_to_uid(int i)
1341 {
1342 if (i != IRC_MAXSID) /* Not reached server SID portion yet? */
1343 {
1344 if (new_uid[i] == 'Z')
1345 new_uid[i] = '0';
1346 else if (new_uid[i] == '9')
1347 {
1348 new_uid[i] = 'A';
1349 add_one_to_uid(i-1);
1350 }
1351 else
1352 ++new_uid[i];
1353 }
1354 else
1355 {
1356 /* NOTE: if IRC_MAXUID != 6, this will have to be rewritten */
1357 if (new_uid[i] == 'Z')
1358 memcpy(new_uid + IRC_MAXSID, "AAAAAA", IRC_MAXUID);
1359 else
1360 ++new_uid[i];
1361 }
1362 }
1363
1364 /*
1365 * uid_get
1366 *
1367 * inputs - struct Client *
1368 * output - new UID is returned to caller
1369 * side effects - new_uid is incremented by one.
1370 */
1371 static void *
1372 uid_get(va_list args)
1373 {
1374 add_one_to_uid(TOTALSIDUID - 1); /* index from 0 */
1375 return new_uid;
1376 }
1377
1378 /*
1379 * init_isupport()
1380 *
1381 * input - NONE
1382 * output - NONE
1383 * side effects - Must be called before isupport is enabled
1384 */
1385 void
1386 init_isupport(void)
1387 {
1388 isupportFile = init_MessageLine();
1389
1390 add_isupport("CALLERID", NULL, -1);
1391 add_isupport("CASEMAPPING", CASEMAP, -1);
1392 add_isupport("DEAF", "D", -1);
1393 add_isupport("KICKLEN", NULL, KICKLEN);
1394 add_isupport("MODES", NULL, MAXMODEPARAMS);
1395 add_isupport("NICKLEN", NULL, NICKLEN-1);
1396 #ifdef HALFOPS
1397 add_isupport("PREFIX", "(ohv)@%+", -1);
1398 add_isupport("STATUSMSG", "@%+", -1);
1399 #else
1400 add_isupport("PREFIX", "(ov)@+", -1);
1401 add_isupport("STATUSMSG", "@+", -1);
1402 #endif
1403 add_isupport("TOPICLEN", NULL, TOPICLEN);
1404 }
1405
1406 /*
1407 * add_isupport()
1408 *
1409 * input - name of supported function
1410 * - options if any
1411 * - number if any
1412 * output - NONE
1413 * side effects - Each supported item must call this when activated
1414 */
1415 void
1416 add_isupport(const char *name, const char *options, int n)
1417 {
1418 dlink_node *ptr;
1419 struct Isupport *support;
1420
1421 DLINK_FOREACH(ptr, support_list.head)
1422 {
1423 support = ptr->data;
1424 if (irccmp(support->name, name) == 0)
1425 {
1426 MyFree(support->name);
1427 MyFree(support->options);
1428 break;
1429 }
1430 }
1431
1432 if (ptr == NULL)
1433 {
1434 support = MyMalloc(sizeof(*support));
1435 dlinkAddTail(support, &support->node, &support_list);
1436 }
1437
1438 DupString(support->name, name);
1439 if (options != NULL)
1440 DupString(support->options, options);
1441 support->number = n;
1442
1443 rebuild_isupport_message_line();
1444 }
1445
1446 /*
1447 * delete_isupport()
1448 *
1449 * input - name of supported function
1450 * output - NONE
1451 * side effects - Each supported item must call this when deactivated
1452 */
1453 void
1454 delete_isupport(const char *name)
1455 {
1456 dlink_node *ptr;
1457 struct Isupport *support;
1458
1459 DLINK_FOREACH(ptr, support_list.head)
1460 {
1461 support = ptr->data;
1462 if (irccmp(support->name, name) == 0)
1463 {
1464 dlinkDelete(ptr, &support_list);
1465 MyFree(support->name);
1466 MyFree(support->options);
1467 MyFree(support);
1468 break;
1469 }
1470 }
1471
1472 rebuild_isupport_message_line();
1473 }
1474
1475 /*
1476 * rebuild_isupport_message_line
1477 *
1478 * input - NONE
1479 * output - NONE
1480 * side effects - Destroy the isupport MessageFile lines, and rebuild.
1481 */
1482 void
1483 rebuild_isupport_message_line(void)
1484 {
1485 char isupportbuffer[IRCD_BUFSIZE];
1486 char *p = isupportbuffer;
1487 dlink_node *ptr = NULL;
1488 int n = 0;
1489 int tokens = 0;
1490 size_t len = 0;
1491 size_t reserve = strlen(me.name) + HOSTLEN + strlen(form_str(RPL_ISUPPORT));
1492
1493 destroy_MessageLine(isupportFile);
1494
1495 DLINK_FOREACH(ptr, support_list.head)
1496 {
1497 struct Isupport *support = ptr->data;
1498
1499 p += (n = ircsprintf(p, "%s", support->name));
1500 len += n;
1501
1502 if (support->options != NULL)
1503 {
1504 p += (n = ircsprintf(p, "=%s", support->options));
1505 len += n;
1506 }
1507
1508 if (support->number > 0)
1509 {
1510 p += (n = ircsprintf(p, "=%d", support->number));
1511 len += n;
1512 }
1513
1514 *p++ = ' ';
1515 len++;
1516 *p = '\0';
1517
1518 if (++tokens == (MAXPARA-2) || len >= (sizeof(isupportbuffer)-reserve))
1519 { /* arbritrary for now */
1520 if (*--p == ' ')
1521 *p = '\0';
1522
1523 addto_MessageLine(isupportFile, isupportbuffer);
1524 p = isupportbuffer;
1525 len = 0;
1526 n = tokens = 0;
1527 }
1528 }
1529
1530 if (len != 0)
1531 {
1532 if (*--p == ' ')
1533 *p = '\0';
1534 addto_MessageLine(isupportFile, isupportbuffer);
1535 }
1536 }

Properties

Name Value
svn:eol-style native
svn:keywords Id Revision