/[svn]/ircd-hybrid-7.2/src/s_user.c
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Contents of /ircd-hybrid-7.2/src/s_user.c

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Revision 1013 - (show annotations)
Sun Oct 18 14:26:49 2009 UTC (11 years, 4 months ago) by michael
File MIME type: text/x-chdr
File size: 41392 byte(s)
- Add -Wextra -Wcast-align -Wbad-function-cast to CFLAGS if --enable-warnings is specified
- Fixed several compile warnings
- 64-bit cleanliness fixes, e.g., reorganize data structures to reduce storage/unnecessary padding

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

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svn:keywords Id Revision

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