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root/svn/ircd-hybrid/trunk/src/s_user.c
Revision: 2231
Committed: Thu Jun 13 20:29:59 2013 UTC (10 years, 9 months ago) by michael
Content type: text/x-csrc
File size: 41058 byte(s)
Log Message:
- s_user.c:introduce_client(): must send CERTFP on client introduction aswell

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

Properties

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