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root/svn/ircd-hybrid/trunk/src/conf.c
Revision: 3780
Committed: Mon Jun 2 20:43:29 2014 UTC (9 years, 9 months ago) by michael
Content type: text/x-csrc
File size: 58462 byte(s)
Log Message:
- conf.c:set_default_conf(): reset ConfigFileEntry.stats_e_disabled

File Contents

# Content
1 /*
2 * ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
3 *
4 * Copyright (c) 1997-2014 ircd-hybrid development team
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
19 * USA
20 */
21
22 /*! \file conf.c
23 * \brief Configuration file functions.
24 * \version $Id$
25 */
26
27 #include "stdinc.h"
28 #include "list.h"
29 #include "ircd_defs.h"
30 #include "conf.h"
31 #include "server.h"
32 #include "resv.h"
33 #include "channel.h"
34 #include "client.h"
35 #include "event.h"
36 #include "irc_string.h"
37 #include "s_bsd.h"
38 #include "ircd.h"
39 #include "listener.h"
40 #include "hostmask.h"
41 #include "modules.h"
42 #include "numeric.h"
43 #include "fdlist.h"
44 #include "log.h"
45 #include "send.h"
46 #include "memory.h"
47 #include "mempool.h"
48 #include "res.h"
49 #include "userhost.h"
50 #include "user.h"
51 #include "channel_mode.h"
52 #include "parse.h"
53 #include "misc.h"
54 #include "conf_db.h"
55 #include "conf_class.h"
56 #include "motd.h"
57
58
59 struct config_channel_entry ConfigChannel;
60 struct config_server_hide ConfigServerHide;
61 struct config_file_entry ConfigFileEntry;
62 struct logging_entry ConfigLoggingEntry = { .use_logging = 1 };
63 struct server_info ServerInfo;
64 struct admin_info AdminInfo;
65
66 /* general conf items link list root, other than k lines etc. */
67 dlink_list service_items = { NULL, NULL, 0 };
68 dlink_list server_items = { NULL, NULL, 0 };
69 dlink_list cluster_items = { NULL, NULL, 0 };
70 dlink_list oconf_items = { NULL, NULL, 0 };
71 dlink_list uconf_items = { NULL, NULL, 0 };
72 dlink_list xconf_items = { NULL, NULL, 0 };
73 dlink_list nresv_items = { NULL, NULL, 0 };
74 dlink_list cresv_items = { NULL, NULL, 0 };
75
76 extern unsigned int lineno;
77 extern char linebuf[];
78 extern char conffilebuf[IRCD_BUFSIZE];
79 extern int yyparse(); /* defined in y.tab.c */
80
81 struct conf_parser_context conf_parser_ctx = { 0, 0, NULL };
82
83 /* internally defined functions */
84 static void read_conf(FILE *);
85 static void clear_out_old_conf(void);
86 static void expire_tklines(dlink_list *);
87 static void garbage_collect_ip_entries(void);
88 static int hash_ip(struct irc_ssaddr *);
89 static int verify_access(struct Client *);
90 static int attach_iline(struct Client *, struct MaskItem *);
91 static struct ip_entry *find_or_add_ip(struct irc_ssaddr *);
92 static dlink_list *map_to_list(enum maskitem_type);
93 static int find_user_host(struct Client *, char *, char *, char *, unsigned int);
94
95
96 /* usually, with hash tables, you use a prime number...
97 * but in this case I am dealing with ip addresses,
98 * not ascii strings.
99 */
100 #define IP_HASH_SIZE 0x1000
101
102 struct ip_entry
103 {
104 struct irc_ssaddr ip;
105 unsigned int count;
106 time_t last_attempt;
107 struct ip_entry *next;
108 };
109
110 static struct ip_entry *ip_hash_table[IP_HASH_SIZE];
111 static mp_pool_t *ip_entry_pool = NULL;
112 static int ip_entries_count = 0;
113
114
115 /* conf_dns_callback()
116 *
117 * inputs - pointer to struct MaskItem
118 * - pointer to DNSReply reply
119 * output - none
120 * side effects - called when resolver query finishes
121 * if the query resulted in a successful search, hp will contain
122 * a non-null pointer, otherwise hp will be null.
123 * if successful save hp in the conf item it was called with
124 */
125 static void
126 conf_dns_callback(void *vptr, const struct irc_ssaddr *addr, const char *name)
127 {
128 struct MaskItem *conf = vptr;
129
130 conf->dns_pending = 0;
131
132 if (addr)
133 memcpy(&conf->addr, addr, sizeof(conf->addr));
134 else
135 conf->dns_failed = 1;
136 }
137
138 /* conf_dns_lookup()
139 *
140 * do a nameserver lookup of the conf host
141 * if the conf entry is currently doing a ns lookup do nothing, otherwise
142 * allocate a dns_query and start ns lookup.
143 */
144 static void
145 conf_dns_lookup(struct MaskItem *conf)
146 {
147 if (!conf->dns_pending)
148 {
149 conf->dns_pending = 1;
150 gethost_byname(conf_dns_callback, conf, conf->host);
151 }
152 }
153
154 struct MaskItem *
155 conf_make(enum maskitem_type type)
156 {
157 struct MaskItem *conf = MyCalloc(sizeof(*conf));
158 dlink_list *list = NULL;
159
160 conf->type = type;
161 conf->active = 1;
162 conf->aftype = AF_INET;
163
164 if ((list = map_to_list(type)))
165 dlinkAdd(conf, &conf->node, list);
166 return conf;
167 }
168
169 void
170 conf_free(struct MaskItem *conf)
171 {
172 dlink_node *ptr = NULL, *ptr_next = NULL;
173 dlink_list *list = NULL;
174
175 if (conf->node.next)
176 if ((list = map_to_list(conf->type)))
177 dlinkDelete(&conf->node, list);
178
179 MyFree(conf->name);
180
181 if (conf->dns_pending)
182 delete_resolver_queries(conf);
183 if (conf->passwd)
184 memset(conf->passwd, 0, strlen(conf->passwd));
185 if (conf->spasswd)
186 memset(conf->spasswd, 0, strlen(conf->spasswd));
187
188 conf->class = NULL;
189
190 MyFree(conf->passwd);
191 MyFree(conf->spasswd);
192 MyFree(conf->reason);
193 MyFree(conf->certfp);
194 MyFree(conf->user);
195 MyFree(conf->host);
196 #ifdef HAVE_LIBCRYPTO
197 MyFree(conf->cipher_list);
198
199 if (conf->rsa_public_key)
200 RSA_free(conf->rsa_public_key);
201 #endif
202 DLINK_FOREACH_SAFE(ptr, ptr_next, conf->hub_list.head)
203 {
204 MyFree(ptr->data);
205 dlinkDelete(ptr, &conf->hub_list);
206 free_dlink_node(ptr);
207 }
208
209 DLINK_FOREACH_SAFE(ptr, ptr_next, conf->leaf_list.head)
210 {
211 MyFree(ptr->data);
212 dlinkDelete(ptr, &conf->leaf_list);
213 free_dlink_node(ptr);
214 }
215
216 DLINK_FOREACH_SAFE(ptr, ptr_next, conf->exempt_list.head)
217 {
218 struct exempt *exptr = ptr->data;
219
220 dlinkDelete(ptr, &conf->exempt_list);
221 MyFree(exptr->name);
222 MyFree(exptr->user);
223 MyFree(exptr->host);
224 MyFree(exptr);
225 }
226
227 MyFree(conf);
228 }
229
230 /* check_client()
231 *
232 * inputs - pointer to client
233 * output - 0 = Success
234 * NOT_AUTHORIZED (-1) = Access denied (no I line match)
235 * IRCD_SOCKET_ERROR (-2) = Bad socket.
236 * I_LINE_FULL (-3) = I-line is full
237 * TOO_MANY (-4) = Too many connections from hostname
238 * BANNED_CLIENT (-5) = K-lined
239 * side effects - Ordinary client access check.
240 * Look for conf lines which have the same
241 * status as the flags passed.
242 */
243 int
244 check_client(struct Client *source_p)
245 {
246 int i;
247
248 if ((i = verify_access(source_p)))
249 ilog(LOG_TYPE_IRCD, "Access denied: %s[%s]",
250 source_p->name, source_p->sockhost);
251
252 switch (i)
253 {
254 case TOO_MANY:
255 sendto_realops_flags(UMODE_FULL, L_ALL, SEND_NOTICE,
256 "Too many on IP for %s (%s).",
257 get_client_name(source_p, SHOW_IP),
258 source_p->sockhost);
259 ilog(LOG_TYPE_IRCD, "Too many connections on IP from %s.",
260 get_client_name(source_p, SHOW_IP));
261 ++ServerStats.is_ref;
262 exit_client(source_p, "No more connections allowed on that IP");
263 break;
264
265 case I_LINE_FULL:
266 sendto_realops_flags(UMODE_FULL, L_ALL, SEND_NOTICE,
267 "auth{} block is full for %s (%s).",
268 get_client_name(source_p, SHOW_IP),
269 source_p->sockhost);
270 ilog(LOG_TYPE_IRCD, "Too many connections from %s.",
271 get_client_name(source_p, SHOW_IP));
272 ++ServerStats.is_ref;
273 exit_client(source_p, "No more connections allowed in your connection class");
274 break;
275
276 case NOT_AUTHORIZED:
277 ++ServerStats.is_ref;
278 /* jdc - lists server name & port connections are on */
279 /* a purely cosmetical change */
280 sendto_realops_flags(UMODE_UNAUTH, L_ALL, SEND_NOTICE,
281 "Unauthorized client connection from %s [%s] on [%s/%u].",
282 get_client_name(source_p, SHOW_IP),
283 source_p->sockhost,
284 source_p->localClient->listener->name,
285 source_p->localClient->listener->port);
286 ilog(LOG_TYPE_IRCD,
287 "Unauthorized client connection from %s on [%s/%u].",
288 get_client_name(source_p, SHOW_IP),
289 source_p->localClient->listener->name,
290 source_p->localClient->listener->port);
291
292 exit_client(source_p, "You are not authorized to use this server");
293 break;
294
295 case BANNED_CLIENT:
296 exit_client(source_p, "Banned");
297 ++ServerStats.is_ref;
298 break;
299
300 case 0:
301 default:
302 break;
303 }
304
305 return (i < 0 ? 0 : 1);
306 }
307
308 /* verify_access()
309 *
310 * inputs - pointer to client to verify
311 * output - 0 if success -'ve if not
312 * side effect - find the first (best) I line to attach.
313 */
314 static int
315 verify_access(struct Client *client_p)
316 {
317 struct MaskItem *conf = NULL;
318 char non_ident[USERLEN + 1] = "~";
319
320 if (IsGotId(client_p))
321 {
322 conf = find_address_conf(client_p->host, client_p->username,
323 &client_p->localClient->ip,
324 client_p->localClient->aftype,
325 client_p->localClient->passwd);
326 }
327 else
328 {
329 strlcpy(non_ident + 1, client_p->username, sizeof(non_ident) - 1);
330 conf = find_address_conf(client_p->host,non_ident,
331 &client_p->localClient->ip,
332 client_p->localClient->aftype,
333 client_p->localClient->passwd);
334 }
335
336 if (conf)
337 {
338 if (IsConfClient(conf))
339 {
340 if (IsConfRedir(conf))
341 {
342 sendto_one_numeric(client_p, &me, RPL_REDIR,
343 conf->name ? conf->name : "",
344 conf->port);
345 return NOT_AUTHORIZED;
346 }
347
348 if (IsConfDoIdentd(conf))
349 SetNeedId(client_p);
350
351 /* Thanks for spoof idea amm */
352 if (IsConfDoSpoofIp(conf))
353 {
354 if (!ConfigFileEntry.hide_spoof_ips && IsConfSpoofNotice(conf))
355 sendto_realops_flags(UMODE_ALL, L_ADMIN, SEND_NOTICE,
356 "%s spoofing: %s as %s",
357 client_p->name, client_p->host, conf->name);
358 strlcpy(client_p->host, conf->name, sizeof(client_p->host));
359 AddFlag(client_p, FLAGS_IP_SPOOFING | FLAGS_AUTH_SPOOF);
360 }
361
362 return attach_iline(client_p, conf);
363 }
364 else if (IsConfKill(conf) || (ConfigFileEntry.glines && IsConfGline(conf)))
365 {
366 if (IsConfGline(conf))
367 sendto_one_notice(client_p, &me, ":*** G-lined");
368 sendto_one_notice(client_p, &me, ":*** Banned: %s", conf->reason);
369 return BANNED_CLIENT;
370 }
371 }
372
373 return NOT_AUTHORIZED;
374 }
375
376 /* attach_iline()
377 *
378 * inputs - client pointer
379 * - conf pointer
380 * output -
381 * side effects - do actual attach
382 */
383 static int
384 attach_iline(struct Client *client_p, struct MaskItem *conf)
385 {
386 struct ClassItem *class = NULL;
387 struct ip_entry *ip_found;
388 int a_limit_reached = 0;
389 unsigned int local = 0, global = 0, ident = 0;
390
391 assert(conf->class);
392
393 ip_found = find_or_add_ip(&client_p->localClient->ip);
394 ip_found->count++;
395 SetIpHash(client_p);
396
397 class = conf->class;
398
399 count_user_host(client_p->username, client_p->host,
400 &global, &local, &ident);
401
402 /* XXX blah. go down checking the various silly limits
403 * setting a_limit_reached if any limit is reached.
404 * - Dianora
405 */
406 if (class->max_total && class->ref_count >= class->max_total)
407 a_limit_reached = 1;
408 else if (class->max_perip && ip_found->count > class->max_perip)
409 a_limit_reached = 1;
410 else if (class->max_local && local >= class->max_local)
411 a_limit_reached = 1;
412 else if (class->max_global && global >= class->max_global)
413 a_limit_reached = 1;
414 else if (class->max_ident && ident >= class->max_ident &&
415 client_p->username[0] != '~')
416 a_limit_reached = 1;
417
418 if (a_limit_reached)
419 {
420 if (!IsConfExemptLimits(conf))
421 return TOO_MANY; /* Already at maximum allowed */
422
423 sendto_one_notice(client_p, &me, ":*** Your connection class is full, "
424 "but you have exceed_limit = yes;");
425 }
426
427 return attach_conf(client_p, conf);
428 }
429
430 /* init_ip_hash_table()
431 *
432 * inputs - NONE
433 * output - NONE
434 * side effects - allocate memory for ip_entry(s)
435 * - clear the ip hash table
436 */
437 void
438 init_ip_hash_table(void)
439 {
440 ip_entry_pool = mp_pool_new(sizeof(struct ip_entry), MP_CHUNK_SIZE_IP_ENTRY);
441 memset(ip_hash_table, 0, sizeof(ip_hash_table));
442 }
443
444 /* find_or_add_ip()
445 *
446 * inputs - pointer to struct irc_ssaddr
447 * output - pointer to a struct ip_entry
448 * side effects -
449 *
450 * If the ip # was not found, a new struct ip_entry is created, and the ip
451 * count set to 0.
452 */
453 static struct ip_entry *
454 find_or_add_ip(struct irc_ssaddr *ip_in)
455 {
456 struct ip_entry *ptr, *newptr;
457 int hash_index = hash_ip(ip_in), res;
458 struct sockaddr_in *v4 = (struct sockaddr_in *)ip_in, *ptr_v4;
459 #ifdef IPV6
460 struct sockaddr_in6 *v6 = (struct sockaddr_in6 *)ip_in, *ptr_v6;
461 #endif
462
463 for (ptr = ip_hash_table[hash_index]; ptr; ptr = ptr->next)
464 {
465 #ifdef IPV6
466 if (ptr->ip.ss.ss_family != ip_in->ss.ss_family)
467 continue;
468 if (ip_in->ss.ss_family == AF_INET6)
469 {
470 ptr_v6 = (struct sockaddr_in6 *)&ptr->ip;
471 res = memcmp(&v6->sin6_addr, &ptr_v6->sin6_addr, sizeof(struct in6_addr));
472 }
473 else
474 #endif
475 {
476 ptr_v4 = (struct sockaddr_in *)&ptr->ip;
477 res = memcmp(&v4->sin_addr, &ptr_v4->sin_addr, sizeof(struct in_addr));
478 }
479 if (res == 0)
480 {
481 /* Found entry already in hash, return it. */
482 return ptr;
483 }
484 }
485
486 if (ip_entries_count >= 2 * hard_fdlimit)
487 garbage_collect_ip_entries();
488
489 newptr = mp_pool_get(ip_entry_pool);
490 memset(newptr, 0, sizeof(*newptr));
491 ip_entries_count++;
492 memcpy(&newptr->ip, ip_in, sizeof(struct irc_ssaddr));
493
494 newptr->next = ip_hash_table[hash_index];
495 ip_hash_table[hash_index] = newptr;
496
497 return newptr;
498 }
499
500 /* remove_one_ip()
501 *
502 * inputs - unsigned long IP address value
503 * output - NONE
504 * side effects - The ip address given, is looked up in ip hash table
505 * and number of ip#'s for that ip decremented.
506 * If ip # count reaches 0 and has expired,
507 * the struct ip_entry is returned to the ip_entry_heap
508 */
509 void
510 remove_one_ip(struct irc_ssaddr *ip_in)
511 {
512 struct ip_entry *ptr;
513 struct ip_entry *last_ptr = NULL;
514 int hash_index = hash_ip(ip_in), res;
515 struct sockaddr_in *v4 = (struct sockaddr_in *)ip_in, *ptr_v4;
516 #ifdef IPV6
517 struct sockaddr_in6 *v6 = (struct sockaddr_in6 *)ip_in, *ptr_v6;
518 #endif
519
520 for (ptr = ip_hash_table[hash_index]; ptr; ptr = ptr->next)
521 {
522 #ifdef IPV6
523 if (ptr->ip.ss.ss_family != ip_in->ss.ss_family)
524 continue;
525 if (ip_in->ss.ss_family == AF_INET6)
526 {
527 ptr_v6 = (struct sockaddr_in6 *)&ptr->ip;
528 res = memcmp(&v6->sin6_addr, &ptr_v6->sin6_addr, sizeof(struct in6_addr));
529 }
530 else
531 #endif
532 {
533 ptr_v4 = (struct sockaddr_in *)&ptr->ip;
534 res = memcmp(&v4->sin_addr, &ptr_v4->sin_addr, sizeof(struct in_addr));
535 }
536 if (res)
537 continue;
538 if (ptr->count > 0)
539 ptr->count--;
540 if (ptr->count == 0 &&
541 (CurrentTime-ptr->last_attempt) >= ConfigFileEntry.throttle_time)
542 {
543 if (last_ptr != NULL)
544 last_ptr->next = ptr->next;
545 else
546 ip_hash_table[hash_index] = ptr->next;
547
548 mp_pool_release(ptr);
549 ip_entries_count--;
550 return;
551 }
552 last_ptr = ptr;
553 }
554 }
555
556 /* hash_ip()
557 *
558 * input - pointer to an irc_inaddr
559 * output - integer value used as index into hash table
560 * side effects - hopefully, none
561 */
562 static int
563 hash_ip(struct irc_ssaddr *addr)
564 {
565 if (addr->ss.ss_family == AF_INET)
566 {
567 struct sockaddr_in *v4 = (struct sockaddr_in *)addr;
568 int hash;
569 uint32_t ip;
570
571 ip = ntohl(v4->sin_addr.s_addr);
572 hash = ((ip >> 12) + ip) & (IP_HASH_SIZE-1);
573 return hash;
574 }
575 #ifdef IPV6
576 else
577 {
578 int hash;
579 struct sockaddr_in6 *v6 = (struct sockaddr_in6 *)addr;
580 uint32_t *ip = (uint32_t *)&v6->sin6_addr.s6_addr;
581
582 hash = ip[0] ^ ip[3];
583 hash ^= hash >> 16;
584 hash ^= hash >> 8;
585 hash = hash & (IP_HASH_SIZE - 1);
586 return hash;
587 }
588 #else
589 return 0;
590 #endif
591 }
592
593 /* count_ip_hash()
594 *
595 * inputs - pointer to counter of number of ips hashed
596 * - pointer to memory used for ip hash
597 * output - returned via pointers input
598 * side effects - NONE
599 *
600 * number of hashed ip #'s is counted up, plus the amount of memory
601 * used in the hash.
602 */
603 void
604 count_ip_hash(unsigned int *number_ips_stored, uint64_t *mem_ips_stored)
605 {
606 struct ip_entry *ptr;
607
608 *number_ips_stored = 0;
609 *mem_ips_stored = 0;
610
611 for (unsigned int i = 0; i < IP_HASH_SIZE; ++i)
612 {
613 for (ptr = ip_hash_table[i]; ptr; ptr = ptr->next)
614 {
615 *number_ips_stored += 1;
616 *mem_ips_stored += sizeof(struct ip_entry);
617 }
618 }
619 }
620
621 /* garbage_collect_ip_entries()
622 *
623 * input - NONE
624 * output - NONE
625 * side effects - free up all ip entries with no connections
626 */
627 static void
628 garbage_collect_ip_entries(void)
629 {
630 struct ip_entry *ptr;
631 struct ip_entry *last_ptr;
632 struct ip_entry *next_ptr;
633
634 for (unsigned int i = 0; i < IP_HASH_SIZE; ++i)
635 {
636 last_ptr = NULL;
637
638 for (ptr = ip_hash_table[i]; ptr; ptr = next_ptr)
639 {
640 next_ptr = ptr->next;
641
642 if (ptr->count == 0 &&
643 (CurrentTime - ptr->last_attempt) >= ConfigFileEntry.throttle_time)
644 {
645 if (last_ptr != NULL)
646 last_ptr->next = ptr->next;
647 else
648 ip_hash_table[i] = ptr->next;
649 mp_pool_release(ptr);
650 ip_entries_count--;
651 }
652 else
653 last_ptr = ptr;
654 }
655 }
656 }
657
658 /* detach_conf()
659 *
660 * inputs - pointer to client to detach
661 * - type of conf to detach
662 * output - 0 for success, -1 for failure
663 * side effects - Disassociate configuration from the client.
664 * Also removes a class from the list if marked for deleting.
665 */
666 void
667 detach_conf(struct Client *client_p, enum maskitem_type type)
668 {
669 dlink_node *ptr = NULL, *ptr_next = NULL;
670
671 DLINK_FOREACH_SAFE(ptr, ptr_next, client_p->localClient->confs.head)
672 {
673 struct MaskItem *conf = ptr->data;
674
675 assert(conf->type & (CONF_CLIENT | CONF_OPER | CONF_SERVER));
676 assert(conf->ref_count > 0);
677 assert(conf->class->ref_count > 0);
678
679 if (!(conf->type & type))
680 continue;
681
682 dlinkDelete(ptr, &client_p->localClient->confs);
683 free_dlink_node(ptr);
684
685 if (conf->type == CONF_CLIENT)
686 remove_from_cidr_check(&client_p->localClient->ip, conf->class);
687
688 if (--conf->class->ref_count == 0 && conf->class->active == 0)
689 {
690 class_free(conf->class);
691 conf->class = NULL;
692 }
693
694 if (--conf->ref_count == 0 && conf->active == 0)
695 conf_free(conf);
696 }
697 }
698
699 /* attach_conf()
700 *
701 * inputs - client pointer
702 * - conf pointer
703 * output -
704 * side effects - Associate a specific configuration entry to a *local*
705 * client (this is the one which used in accepting the
706 * connection). Note, that this automatically changes the
707 * attachment if there was an old one...
708 */
709 int
710 attach_conf(struct Client *client_p, struct MaskItem *conf)
711 {
712 if (dlinkFind(&client_p->localClient->confs, conf))
713 return 1;
714
715 if (conf->type == CONF_CLIENT)
716 if (cidr_limit_reached(IsConfExemptLimits(conf),
717 &client_p->localClient->ip, conf->class))
718 return TOO_MANY; /* Already at maximum allowed */
719
720 conf->class->ref_count++;
721 conf->ref_count++;
722
723 dlinkAdd(conf, make_dlink_node(), &client_p->localClient->confs);
724
725 return 0;
726 }
727
728 /* attach_connect_block()
729 *
730 * inputs - pointer to server to attach
731 * - name of server
732 * - hostname of server
733 * output - true (1) if both are found, otherwise return false (0)
734 * side effects - find connect block and attach them to connecting client
735 */
736 int
737 attach_connect_block(struct Client *client_p, const char *name,
738 const char *host)
739 {
740 dlink_node *ptr;
741 struct MaskItem *conf = NULL;
742
743 assert(client_p != NULL);
744 assert(host != NULL);
745
746 if (client_p == NULL || host == NULL)
747 return 0;
748
749 DLINK_FOREACH(ptr, server_items.head)
750 {
751 conf = ptr->data;
752
753 if (match(conf->name, name) || match(conf->host, host))
754 continue;
755
756 attach_conf(client_p, conf);
757 return -1;
758 }
759
760 return 0;
761 }
762
763 /* find_conf_name()
764 *
765 * inputs - pointer to conf link list to search
766 * - pointer to name to find
767 * - int mask of type of conf to find
768 * output - NULL or pointer to conf found
769 * side effects - find a conf entry which matches the name
770 * and has the given mask.
771 */
772 struct MaskItem *
773 find_conf_name(dlink_list *list, const char *name, enum maskitem_type type)
774 {
775 dlink_node *ptr;
776 struct MaskItem* conf;
777
778 DLINK_FOREACH(ptr, list->head)
779 {
780 conf = ptr->data;
781
782 if (conf->type == type)
783 {
784 if (conf->name && (!irccmp(conf->name, name) ||
785 !match(conf->name, name)))
786 return conf;
787 }
788 }
789
790 return NULL;
791 }
792
793 /* map_to_list()
794 *
795 * inputs - ConfType conf
796 * output - pointer to dlink_list to use
797 * side effects - none
798 */
799 static dlink_list *
800 map_to_list(enum maskitem_type type)
801 {
802 switch(type)
803 {
804 case CONF_XLINE:
805 return(&xconf_items);
806 break;
807 case CONF_ULINE:
808 return(&uconf_items);
809 break;
810 case CONF_NRESV:
811 return(&nresv_items);
812 break;
813 case CONF_CRESV:
814 return(&cresv_items);
815 case CONF_OPER:
816 return(&oconf_items);
817 break;
818 case CONF_SERVER:
819 return(&server_items);
820 break;
821 case CONF_SERVICE:
822 return(&service_items);
823 break;
824 case CONF_CLUSTER:
825 return(&cluster_items);
826 break;
827 default:
828 return NULL;
829 }
830 }
831
832 /* find_matching_name_conf()
833 *
834 * inputs - type of link list to look in
835 * - pointer to name string to find
836 * - pointer to user
837 * - pointer to host
838 * - optional flags to match on as well
839 * output - NULL or pointer to found struct MaskItem
840 * side effects - looks for a match on name field
841 */
842 struct MaskItem *
843 find_matching_name_conf(enum maskitem_type type, const char *name, const char *user,
844 const char *host, unsigned int flags)
845 {
846 dlink_node *ptr=NULL;
847 struct MaskItem *conf=NULL;
848 dlink_list *list_p = map_to_list(type);
849
850 switch (type)
851 {
852 case CONF_SERVICE:
853 DLINK_FOREACH(ptr, list_p->head)
854 {
855 conf = ptr->data;
856
857 if (EmptyString(conf->name))
858 continue;
859 if ((name != NULL) && !irccmp(name, conf->name))
860 return conf;
861 }
862 break;
863
864 case CONF_XLINE:
865 case CONF_ULINE:
866 case CONF_NRESV:
867 case CONF_CRESV:
868 DLINK_FOREACH(ptr, list_p->head)
869 {
870 conf = ptr->data;
871
872 if (EmptyString(conf->name))
873 continue;
874 if ((name != NULL) && !match(conf->name, name))
875 {
876 if ((user == NULL && (host == NULL)))
877 return conf;
878 if ((conf->flags & flags) != flags)
879 continue;
880 if (EmptyString(conf->user) || EmptyString(conf->host))
881 return conf;
882 if (!match(conf->user, user) && !match(conf->host, host))
883 return conf;
884 }
885 }
886 break;
887
888 case CONF_SERVER:
889 DLINK_FOREACH(ptr, list_p->head)
890 {
891 conf = ptr->data;
892
893 if ((name != NULL) && !match(name, conf->name))
894 return conf;
895 else if ((host != NULL) && !match(host, conf->host))
896 return conf;
897 }
898 break;
899
900 default:
901 break;
902 }
903 return NULL;
904 }
905
906 /* find_exact_name_conf()
907 *
908 * inputs - type of link list to look in
909 * - pointer to name string to find
910 * - pointer to user
911 * - pointer to host
912 * output - NULL or pointer to found struct MaskItem
913 * side effects - looks for an exact match on name field
914 */
915 struct MaskItem *
916 find_exact_name_conf(enum maskitem_type type, const struct Client *who, const char *name,
917 const char *user, const char *host)
918 {
919 dlink_node *ptr = NULL;
920 struct MaskItem *conf;
921 dlink_list *list_p = map_to_list(type);
922
923 switch(type)
924 {
925 case CONF_XLINE:
926 case CONF_ULINE:
927 case CONF_NRESV:
928 case CONF_CRESV:
929
930 DLINK_FOREACH(ptr, list_p->head)
931 {
932 conf = ptr->data;
933
934 if (EmptyString(conf->name))
935 continue;
936
937 if (irccmp(conf->name, name) == 0)
938 {
939 if ((user == NULL && (host == NULL)))
940 return conf;
941 if (EmptyString(conf->user) || EmptyString(conf->host))
942 return conf;
943 if (!match(conf->user, user) && !match(conf->host, host))
944 return conf;
945 }
946 }
947 break;
948
949 case CONF_OPER:
950 DLINK_FOREACH(ptr, list_p->head)
951 {
952 conf = ptr->data;
953
954 if (EmptyString(conf->name))
955 continue;
956
957 if (!irccmp(conf->name, name))
958 {
959 if (!who)
960 return conf;
961 if (EmptyString(conf->user) || EmptyString(conf->host))
962 return NULL;
963 if (!match(conf->user, who->username))
964 {
965 switch (conf->htype)
966 {
967 case HM_HOST:
968 if (!match(conf->host, who->host) || !match(conf->host, who->sockhost))
969 if (!conf->class->max_total || conf->class->ref_count < conf->class->max_total)
970 return conf;
971 break;
972 case HM_IPV4:
973 if (who->localClient->aftype == AF_INET)
974 if (match_ipv4(&who->localClient->ip, &conf->addr, conf->bits))
975 if (!conf->class->max_total || conf->class->ref_count < conf->class->max_total)
976 return conf;
977 break;
978 #ifdef IPV6
979 case HM_IPV6:
980 if (who->localClient->aftype == AF_INET6)
981 if (match_ipv6(&who->localClient->ip, &conf->addr, conf->bits))
982 if (!conf->class->max_total || conf->class->ref_count < conf->class->max_total)
983 return conf;
984 break;
985 #endif
986 default:
987 assert(0);
988 }
989 }
990 }
991 }
992
993 break;
994
995 case CONF_SERVER:
996 DLINK_FOREACH(ptr, list_p->head)
997 {
998 conf = ptr->data;
999
1000 if (EmptyString(conf->name))
1001 continue;
1002
1003 if (name == NULL)
1004 {
1005 if (EmptyString(conf->host))
1006 continue;
1007 if (irccmp(conf->host, host) == 0)
1008 return conf;
1009 }
1010 else if (irccmp(conf->name, name) == 0)
1011 return conf;
1012 }
1013
1014 break;
1015
1016 default:
1017 break;
1018 }
1019
1020 return NULL;
1021 }
1022
1023 /* rehash()
1024 *
1025 * Actual REHASH service routine. Called with sig == 0 if it has been called
1026 * as a result of an operator issuing this command, else assume it has been
1027 * called as a result of the server receiving a HUP signal.
1028 */
1029 int
1030 rehash(int sig)
1031 {
1032 if (sig)
1033 sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
1034 "Got signal SIGHUP, reloading configuration file(s)");
1035
1036 restart_resolver();
1037
1038 /* don't close listeners until we know we can go ahead with the rehash */
1039
1040 /* Check to see if we magically got(or lost) IPv6 support */
1041 check_can_use_v6();
1042
1043 read_conf_files(0);
1044
1045 if (ServerInfo.description)
1046 strlcpy(me.info, ServerInfo.description, sizeof(me.info));
1047
1048 load_conf_modules();
1049
1050 rehashed_klines = 1;
1051
1052 return 0;
1053 }
1054
1055 /* set_default_conf()
1056 *
1057 * inputs - NONE
1058 * output - NONE
1059 * side effects - Set default values here.
1060 * This is called **PRIOR** to parsing the
1061 * configuration file. If you want to do some validation
1062 * of values later, put them in validate_conf().
1063 */
1064 static void
1065 set_default_conf(void)
1066 {
1067 /* verify init_class() ran, this should be an unnecessary check
1068 * but its not much work.
1069 */
1070 assert(class_default == class_get_list()->tail->data);
1071
1072 #ifdef HAVE_LIBCRYPTO
1073 ServerInfo.rsa_private_key = NULL;
1074 ServerInfo.rsa_private_key_file = NULL;
1075 #endif
1076
1077 /* ServerInfo.name is not rehashable */
1078 /* ServerInfo.name = ServerInfo.name; */
1079 ServerInfo.description = NULL;
1080 ServerInfo.network_name = xstrdup(NETWORK_NAME_DEFAULT);
1081 ServerInfo.network_desc = xstrdup(NETWORK_DESC_DEFAULT);
1082
1083 memset(&ServerInfo.ip, 0, sizeof(ServerInfo.ip));
1084 ServerInfo.specific_ipv4_vhost = 0;
1085 memset(&ServerInfo.ip6, 0, sizeof(ServerInfo.ip6));
1086 ServerInfo.specific_ipv6_vhost = 0;
1087
1088 ServerInfo.max_clients = MAXCLIENTS_MAX;
1089 ServerInfo.max_nick_length = 9;
1090 ServerInfo.max_topic_length = 80;
1091
1092 ServerInfo.hub = 0;
1093 ServerInfo.dns_host.sin_addr.s_addr = 0;
1094 ServerInfo.dns_host.sin_port = 0;
1095 AdminInfo.name = NULL;
1096 AdminInfo.email = NULL;
1097 AdminInfo.description = NULL;
1098
1099 log_del_all();
1100
1101 ConfigLoggingEntry.use_logging = 1;
1102
1103 ConfigChannel.disable_fake_channels = 0;
1104
1105 ConfigChannel.invite_delay = 300;
1106 ConfigChannel.invite_delay_channel = 60;
1107 ConfigChannel.knock_delay = 300;
1108 ConfigChannel.knock_delay_channel = 60;
1109 ConfigChannel.max_chans_per_user = 25;
1110 ConfigChannel.max_chans_per_oper = 50;
1111 ConfigChannel.max_bans = 25;
1112 ConfigChannel.default_split_user_count = 0;
1113 ConfigChannel.default_split_server_count = 0;
1114 ConfigChannel.no_join_on_split = 0;
1115 ConfigChannel.no_create_on_split = 0;
1116
1117 ConfigServerHide.flatten_links = 0;
1118 ConfigServerHide.links_delay = 300;
1119 ConfigServerHide.hidden = 0;
1120 ConfigServerHide.hide_servers = 0;
1121 ConfigServerHide.hide_services = 0;
1122 ConfigServerHide.hidden_name = xstrdup(NETWORK_NAME_DEFAULT);
1123 ConfigServerHide.hide_server_ips = 0;
1124 ConfigServerHide.disable_remote_commands = 0;
1125
1126 ConfigFileEntry.service_name = xstrdup(SERVICE_NAME_DEFAULT);
1127 ConfigFileEntry.max_watch = WATCHSIZE_DEFAULT;
1128 ConfigFileEntry.cycle_on_host_change = 1;
1129 ConfigFileEntry.glines = 0;
1130 ConfigFileEntry.gline_time = 12 * 3600;
1131 ConfigFileEntry.gline_request_time = GLINE_REQUEST_EXPIRE_DEFAULT;
1132 ConfigFileEntry.gline_min_cidr = 16;
1133 ConfigFileEntry.gline_min_cidr6 = 48;
1134 ConfigFileEntry.invisible_on_connect = 1;
1135 ConfigFileEntry.tkline_expire_notices = 1;
1136 ConfigFileEntry.hide_spoof_ips = 1;
1137 ConfigFileEntry.ignore_bogus_ts = 0;
1138 ConfigFileEntry.disable_auth = 0;
1139 ConfigFileEntry.kill_chase_time_limit = 90;
1140 ConfigFileEntry.default_floodcount = 8;
1141 ConfigFileEntry.failed_oper_notice = 1;
1142 ConfigFileEntry.dots_in_ident = 0;
1143 ConfigFileEntry.min_nonwildcard = 4;
1144 ConfigFileEntry.min_nonwildcard_simple = 3;
1145 ConfigFileEntry.max_accept = 20;
1146 ConfigFileEntry.anti_nick_flood = 0;
1147 ConfigFileEntry.max_nick_time = 20;
1148 ConfigFileEntry.max_nick_changes = 5;
1149 ConfigFileEntry.anti_spam_exit_message_time = 0;
1150 ConfigFileEntry.ts_warn_delta = TS_WARN_DELTA_DEFAULT;
1151 ConfigFileEntry.ts_max_delta = TS_MAX_DELTA_DEFAULT;
1152 ConfigFileEntry.warn_no_connect_block = 1;
1153 ConfigFileEntry.stats_e_disabled = 0;
1154 ConfigFileEntry.stats_o_oper_only = 0;
1155 ConfigFileEntry.stats_k_oper_only = 1; /* 1 = masked */
1156 ConfigFileEntry.stats_i_oper_only = 1; /* 1 = masked */
1157 ConfigFileEntry.stats_P_oper_only = 0;
1158 ConfigFileEntry.stats_u_oper_only = 0;
1159 ConfigFileEntry.caller_id_wait = 60;
1160 ConfigFileEntry.opers_bypass_callerid = 0;
1161 ConfigFileEntry.pace_wait = 10;
1162 ConfigFileEntry.pace_wait_simple = 1;
1163 ConfigFileEntry.short_motd = 0;
1164 ConfigFileEntry.ping_cookie = 0;
1165 ConfigFileEntry.no_oper_flood = 0;
1166 ConfigFileEntry.true_no_oper_flood = 0;
1167 ConfigFileEntry.oper_pass_resv = 1;
1168 ConfigFileEntry.max_targets = MAX_TARGETS_DEFAULT;
1169 ConfigFileEntry.oper_only_umodes = UMODE_DEBUG;
1170 ConfigFileEntry.oper_umodes = UMODE_BOTS | UMODE_LOCOPS | UMODE_SERVNOTICE |
1171 UMODE_OPERWALL | UMODE_WALLOP;
1172 ConfigFileEntry.use_egd = 0;
1173 ConfigFileEntry.egdpool_path = NULL;
1174 ConfigFileEntry.throttle_time = 10;
1175 }
1176
1177 static void
1178 validate_conf(void)
1179 {
1180 if (ConfigFileEntry.ts_warn_delta < TS_WARN_DELTA_MIN)
1181 ConfigFileEntry.ts_warn_delta = TS_WARN_DELTA_DEFAULT;
1182
1183 if (ConfigFileEntry.ts_max_delta < TS_MAX_DELTA_MIN)
1184 ConfigFileEntry.ts_max_delta = TS_MAX_DELTA_DEFAULT;
1185
1186 if (ServerInfo.network_name == NULL)
1187 ServerInfo.network_name = xstrdup(NETWORK_NAME_DEFAULT);
1188
1189 if (ServerInfo.network_desc == NULL)
1190 ServerInfo.network_desc = xstrdup(NETWORK_DESC_DEFAULT);
1191
1192 if (ConfigFileEntry.service_name == NULL)
1193 ConfigFileEntry.service_name = xstrdup(SERVICE_NAME_DEFAULT);
1194
1195 ConfigFileEntry.max_watch = IRCD_MAX(ConfigFileEntry.max_watch, WATCHSIZE_MIN);
1196 }
1197
1198 /* read_conf()
1199 *
1200 * inputs - file descriptor pointing to config file to use
1201 * output - None
1202 * side effects - Read configuration file.
1203 */
1204 static void
1205 read_conf(FILE *file)
1206 {
1207 lineno = 0;
1208
1209 set_default_conf(); /* Set default values prior to conf parsing */
1210 conf_parser_ctx.pass = 1;
1211 yyparse(); /* Pick up the classes first */
1212
1213 rewind(file);
1214
1215 conf_parser_ctx.pass = 2;
1216 yyparse(); /* Load the values from the conf */
1217 validate_conf(); /* Check to make sure some values are still okay. */
1218 /* Some global values are also loaded here. */
1219 class_delete_marked(); /* Delete unused classes that are marked for deletion */
1220 }
1221
1222 /* lookup_confhost()
1223 *
1224 * start DNS lookups of all hostnames in the conf
1225 * line and convert an IP addresses in a.b.c.d number for to IP#s.
1226 */
1227 void
1228 lookup_confhost(struct MaskItem *conf)
1229 {
1230 struct addrinfo hints, *res;
1231
1232 /*
1233 * Do name lookup now on hostnames given and store the
1234 * ip numbers in conf structure.
1235 */
1236 memset(&hints, 0, sizeof(hints));
1237
1238 hints.ai_family = AF_UNSPEC;
1239 hints.ai_socktype = SOCK_STREAM;
1240
1241 /* Get us ready for a bind() and don't bother doing dns lookup */
1242 hints.ai_flags = AI_PASSIVE | AI_NUMERICHOST;
1243
1244 if (getaddrinfo(conf->host, NULL, &hints, &res))
1245 {
1246 conf_dns_lookup(conf);
1247 return;
1248 }
1249
1250 assert(res);
1251
1252 memcpy(&conf->addr, res->ai_addr, res->ai_addrlen);
1253 conf->addr.ss_len = res->ai_addrlen;
1254 conf->addr.ss.ss_family = res->ai_family;
1255
1256 freeaddrinfo(res);
1257 }
1258
1259 /* conf_connect_allowed()
1260 *
1261 * inputs - pointer to inaddr
1262 * - int type ipv4 or ipv6
1263 * output - BANNED or accepted
1264 * side effects - none
1265 */
1266 int
1267 conf_connect_allowed(struct irc_ssaddr *addr, int aftype)
1268 {
1269 struct ip_entry *ip_found;
1270 struct MaskItem *conf = find_dline_conf(addr, aftype);
1271
1272 /* DLINE exempt also gets you out of static limits/pacing... */
1273 if (conf && (conf->type == CONF_EXEMPT))
1274 return 0;
1275
1276 if (conf)
1277 return BANNED_CLIENT;
1278
1279 ip_found = find_or_add_ip(addr);
1280
1281 if ((CurrentTime - ip_found->last_attempt) <
1282 ConfigFileEntry.throttle_time)
1283 {
1284 ip_found->last_attempt = CurrentTime;
1285 return TOO_FAST;
1286 }
1287
1288 ip_found->last_attempt = CurrentTime;
1289 return 0;
1290 }
1291
1292 /* cleanup_tklines()
1293 *
1294 * inputs - NONE
1295 * output - NONE
1296 * side effects - call function to expire temporary k/d lines
1297 * This is an event started off in ircd.c
1298 */
1299 void
1300 cleanup_tklines(void *notused)
1301 {
1302 hostmask_expire_temporary();
1303 expire_tklines(&xconf_items);
1304 expire_tklines(&nresv_items);
1305 expire_tklines(&cresv_items);
1306 }
1307
1308 /* expire_tklines()
1309 *
1310 * inputs - tkline list pointer
1311 * output - NONE
1312 * side effects - expire tklines
1313 */
1314 static void
1315 expire_tklines(dlink_list *tklist)
1316 {
1317 dlink_node *ptr = NULL, *ptr_next = NULL;
1318 struct MaskItem *conf = NULL;
1319
1320 DLINK_FOREACH_SAFE(ptr, ptr_next, tklist->head)
1321 {
1322 conf = ptr->data;
1323
1324 if (!conf->until || conf->until > CurrentTime)
1325 continue;
1326
1327 if (conf->type == CONF_XLINE)
1328 {
1329 if (ConfigFileEntry.tkline_expire_notices)
1330 sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
1331 "Temporary X-line for [%s] expired", conf->name);
1332 conf_free(conf);
1333 }
1334 else if (conf->type == CONF_NRESV || conf->type == CONF_CRESV)
1335 {
1336 if (ConfigFileEntry.tkline_expire_notices)
1337 sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
1338 "Temporary RESV for [%s] expired", conf->name);
1339 conf_free(conf);
1340 }
1341 }
1342 }
1343
1344 /* oper_privs_as_string()
1345 *
1346 * inputs - pointer to client_p
1347 * output - pointer to static string showing oper privs
1348 * side effects - return as string, the oper privs as derived from port
1349 */
1350 static const struct oper_privs
1351 {
1352 const unsigned int flag;
1353 const unsigned char c;
1354 } flag_list[] = {
1355 { OPER_FLAG_ADMIN, 'A' },
1356 { OPER_FLAG_REMOTEBAN, 'B' },
1357 { OPER_FLAG_DIE, 'D' },
1358 { OPER_FLAG_GLINE, 'G' },
1359 { OPER_FLAG_REHASH, 'H' },
1360 { OPER_FLAG_K, 'K' },
1361 { OPER_FLAG_OPERWALL, 'L' },
1362 { OPER_FLAG_KILL, 'N' },
1363 { OPER_FLAG_KILL_REMOTE, 'O' },
1364 { OPER_FLAG_CONNECT, 'P' },
1365 { OPER_FLAG_CONNECT_REMOTE, 'Q' },
1366 { OPER_FLAG_SQUIT, 'R' },
1367 { OPER_FLAG_SQUIT_REMOTE, 'S' },
1368 { OPER_FLAG_UNKLINE, 'U' },
1369 { OPER_FLAG_XLINE, 'X' },
1370 { 0, '\0' }
1371 };
1372
1373 char *
1374 oper_privs_as_string(const unsigned int port)
1375 {
1376 static char privs_out[IRCD_BUFSIZE];
1377 char *privs_ptr = privs_out;
1378
1379 for (const struct oper_privs *opriv = flag_list; opriv->flag; ++opriv)
1380 {
1381 if (port & opriv->flag)
1382 *privs_ptr++ = opriv->c;
1383 else
1384 *privs_ptr++ = ToLower(opriv->c);
1385 }
1386
1387 *privs_ptr = '\0';
1388
1389 return privs_out;
1390 }
1391
1392 /*
1393 * Input: A client to find the active oper{} name for.
1394 * Output: The nick!user@host{oper} of the oper.
1395 * "oper" is server name for remote opers
1396 * Side effects: None.
1397 */
1398 const char *
1399 get_oper_name(const struct Client *client_p)
1400 {
1401 const dlink_node *cnode = NULL;
1402 /* +5 for !,@,{,} and null */
1403 static char buffer[NICKLEN + USERLEN + HOSTLEN + HOSTLEN + 5];
1404
1405 if (MyConnect(client_p))
1406 {
1407 if ((cnode = client_p->localClient->confs.head))
1408 {
1409 const struct MaskItem *conf = cnode->data;
1410
1411 if (IsConfOperator(conf))
1412 {
1413 snprintf(buffer, sizeof(buffer), "%s!%s@%s{%s}", client_p->name,
1414 client_p->username, client_p->host, conf->name);
1415 return buffer;
1416 }
1417 }
1418
1419 /* Probably should assert here for now. If there is an oper out there
1420 * with no oper{} conf attached, it would be good for us to know...
1421 */
1422 assert(0); /* Oper without oper conf! */
1423 }
1424
1425 snprintf(buffer, sizeof(buffer), "%s!%s@%s{%s}", client_p->name,
1426 client_p->username, client_p->host, client_p->servptr->name);
1427 return buffer;
1428 }
1429
1430 /* read_conf_files()
1431 *
1432 * inputs - cold start YES or NO
1433 * output - none
1434 * side effects - read all conf files needed, ircd.conf kline.conf etc.
1435 */
1436 void
1437 read_conf_files(int cold)
1438 {
1439 const char *filename = NULL;
1440 char chanmodes[IRCD_BUFSIZE] = "";
1441 char chanlimit[IRCD_BUFSIZE] = "";
1442
1443 conf_parser_ctx.boot = cold;
1444 filename = ConfigFileEntry.configfile;
1445
1446 /* We need to know the initial filename for the yyerror() to report
1447 FIXME: The full path is in conffilenamebuf first time since we
1448 dont know anything else
1449
1450 - Gozem 2002-07-21
1451 */
1452 strlcpy(conffilebuf, filename, sizeof(conffilebuf));
1453
1454 if ((conf_parser_ctx.conf_file = fopen(filename, "r")) == NULL)
1455 {
1456 if (cold)
1457 {
1458 ilog(LOG_TYPE_IRCD, "Unable to read configuration file '%s': %s",
1459 filename, strerror(errno));
1460 exit(-1);
1461 }
1462 else
1463 {
1464 sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
1465 "Unable to read configuration file '%s': %s",
1466 filename, strerror(errno));
1467 return;
1468 }
1469 }
1470
1471 if (!cold)
1472 clear_out_old_conf();
1473
1474 read_conf(conf_parser_ctx.conf_file);
1475 fclose(conf_parser_ctx.conf_file);
1476
1477 log_reopen_all();
1478
1479 add_isupport("NICKLEN", NULL, ServerInfo.max_nick_length);
1480 add_isupport("NETWORK", ServerInfo.network_name, -1);
1481
1482 snprintf(chanmodes, sizeof(chanmodes), "beI:%d", ConfigChannel.max_bans);
1483 add_isupport("MAXLIST", chanmodes, -1);
1484 add_isupport("MAXTARGETS", NULL, ConfigFileEntry.max_targets);
1485 add_isupport("CHANTYPES", "#", -1);
1486
1487 snprintf(chanlimit, sizeof(chanlimit), "#:%d",
1488 ConfigChannel.max_chans_per_user);
1489 add_isupport("CHANLIMIT", chanlimit, -1);
1490 snprintf(chanmodes, sizeof(chanmodes), "%s", "beI,k,l,imnprstORS");
1491 add_isupport("CHANNELLEN", NULL, CHANNELLEN);
1492 add_isupport("TOPICLEN", NULL, ServerInfo.max_topic_length);
1493 add_isupport("CHANMODES", chanmodes, -1);
1494
1495 /*
1496 * message_locale may have changed. rebuild isupport since it relies
1497 * on strlen(form_str(RPL_ISUPPORT))
1498 */
1499 rebuild_isupport_message_line();
1500 }
1501
1502 /* clear_out_old_conf()
1503 *
1504 * inputs - none
1505 * output - none
1506 * side effects - Clear out the old configuration
1507 */
1508 static void
1509 clear_out_old_conf(void)
1510 {
1511 dlink_node *ptr = NULL, *next_ptr = NULL;
1512 struct MaskItem *conf;
1513 dlink_list *free_items [] = {
1514 &server_items, &oconf_items,
1515 &uconf_items, &xconf_items,
1516 &nresv_items, &cluster_items, &service_items, &cresv_items, NULL
1517 };
1518
1519 dlink_list ** iterator = free_items; /* C is dumb */
1520
1521 /* We only need to free anything allocated by yyparse() here.
1522 * Resetting structs, etc, is taken care of by set_default_conf().
1523 */
1524
1525 for (; *iterator != NULL; iterator++)
1526 {
1527 DLINK_FOREACH_SAFE(ptr, next_ptr, (*iterator)->head)
1528 {
1529 conf = ptr->data;
1530
1531 dlinkDelete(&conf->node, map_to_list(conf->type));
1532
1533 /* XXX This is less than pretty */
1534 if (conf->type == CONF_SERVER || conf->type == CONF_OPER)
1535 {
1536 if (!conf->ref_count)
1537 conf_free(conf);
1538 }
1539 else if (conf->type == CONF_XLINE)
1540 {
1541 if (!conf->until)
1542 conf_free(conf);
1543 }
1544 else
1545 conf_free(conf);
1546 }
1547 }
1548
1549 motd_clear();
1550
1551 /*
1552 * don't delete the class table, rather mark all entries
1553 * for deletion. The table is cleaned up by class_delete_marked. - avalon
1554 */
1555 class_mark_for_deletion();
1556
1557 clear_out_address_conf();
1558
1559 /* clean out module paths */
1560 mod_clear_paths();
1561
1562 /* clean out ServerInfo */
1563 MyFree(ServerInfo.description);
1564 ServerInfo.description = NULL;
1565 MyFree(ServerInfo.network_name);
1566 ServerInfo.network_name = NULL;
1567 MyFree(ServerInfo.network_desc);
1568 ServerInfo.network_desc = NULL;
1569 MyFree(ConfigFileEntry.egdpool_path);
1570 ConfigFileEntry.egdpool_path = NULL;
1571 #ifdef HAVE_LIBCRYPTO
1572 if (ServerInfo.rsa_private_key)
1573 {
1574 RSA_free(ServerInfo.rsa_private_key);
1575 ServerInfo.rsa_private_key = NULL;
1576 }
1577
1578 MyFree(ServerInfo.rsa_private_key_file);
1579 ServerInfo.rsa_private_key_file = NULL;
1580
1581 if (ServerInfo.server_ctx)
1582 SSL_CTX_set_options(ServerInfo.server_ctx, SSL_OP_NO_SSLv2|
1583 SSL_OP_NO_SSLv3|
1584 SSL_OP_NO_TLSv1);
1585 if (ServerInfo.client_ctx)
1586 SSL_CTX_set_options(ServerInfo.client_ctx, SSL_OP_NO_SSLv2|
1587 SSL_OP_NO_SSLv3|
1588 SSL_OP_NO_TLSv1);
1589 #endif
1590
1591 /* clean out AdminInfo */
1592 MyFree(AdminInfo.name);
1593 AdminInfo.name = NULL;
1594 MyFree(AdminInfo.email);
1595 AdminInfo.email = NULL;
1596 MyFree(AdminInfo.description);
1597 AdminInfo.description = NULL;
1598
1599 /* clean out listeners */
1600 close_listeners();
1601
1602 /* clean out general */
1603 MyFree(ConfigFileEntry.service_name);
1604 ConfigFileEntry.service_name = NULL;
1605 }
1606
1607 /* conf_add_class_to_conf()
1608 *
1609 * inputs - pointer to config item
1610 * output - NONE
1611 * side effects - Add a class pointer to a conf
1612 */
1613 void
1614 conf_add_class_to_conf(struct MaskItem *conf, const char *class_name)
1615 {
1616 if (class_name == NULL)
1617 {
1618 conf->class = class_default;
1619
1620 if (conf->type == CONF_CLIENT)
1621 sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
1622 "Warning *** Defaulting to default class for %s@%s",
1623 conf->user, conf->host);
1624 else
1625 sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
1626 "Warning *** Defaulting to default class for %s",
1627 conf->name);
1628 }
1629 else
1630 conf->class = class_find(class_name, 1);
1631
1632 if (conf->class == NULL)
1633 {
1634 if (conf->type == CONF_CLIENT)
1635 sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
1636 "Warning *** Defaulting to default class for %s@%s",
1637 conf->user, conf->host);
1638 else
1639 sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
1640 "Warning *** Defaulting to default class for %s",
1641 conf->name);
1642 conf->class = class_default;
1643 }
1644 }
1645
1646 /* yyerror()
1647 *
1648 * inputs - message from parser
1649 * output - NONE
1650 * side effects - message to opers and log file entry is made
1651 */
1652 void
1653 yyerror(const char *msg)
1654 {
1655 char newlinebuf[IRCD_BUFSIZE];
1656
1657 if (conf_parser_ctx.pass != 1)
1658 return;
1659
1660 strip_tabs(newlinebuf, linebuf, sizeof(newlinebuf));
1661 sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
1662 "\"%s\", line %u: %s: %s",
1663 conffilebuf, lineno + 1, msg, newlinebuf);
1664 ilog(LOG_TYPE_IRCD, "\"%s\", line %u: %s: %s",
1665 conffilebuf, lineno + 1, msg, newlinebuf);
1666 }
1667
1668 void
1669 conf_error_report(const char *msg)
1670 {
1671 char newlinebuf[IRCD_BUFSIZE];
1672
1673 strip_tabs(newlinebuf, linebuf, sizeof(newlinebuf));
1674 sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
1675 "\"%s\", line %u: %s: %s",
1676 conffilebuf, lineno + 1, msg, newlinebuf);
1677 ilog(LOG_TYPE_IRCD, "\"%s\", line %u: %s: %s",
1678 conffilebuf, lineno + 1, msg, newlinebuf);
1679 }
1680
1681 /*
1682 * valid_tkline()
1683 *
1684 * inputs - pointer to ascii string to check
1685 * - whether the specified time is in seconds or minutes
1686 * output - -1 not enough parameters
1687 * - 0 if not an integer number, else the number
1688 * side effects - none
1689 * Originally written by Dianora (Diane, db@db.net)
1690 */
1691 time_t
1692 valid_tkline(const char *data, const int minutes)
1693 {
1694 const unsigned char *p = (const unsigned char *)data;
1695 unsigned char tmpch = '\0';
1696 time_t result = 0;
1697
1698 while ((tmpch = *p++))
1699 {
1700 if (!IsDigit(tmpch))
1701 return 0;
1702
1703 result *= 10;
1704 result += (tmpch & 0xF);
1705 }
1706
1707 /*
1708 * In the degenerate case where oper does a /quote kline 0 user@host :reason
1709 * i.e. they specifically use 0, I am going to return 1 instead
1710 * as a return value of non-zero is used to flag it as a temporary kline
1711 */
1712 if (result == 0)
1713 result = 1;
1714
1715 /*
1716 * If the incoming time is in seconds convert it to minutes for the purpose
1717 * of this calculation
1718 */
1719 if (!minutes)
1720 result = result / 60;
1721
1722 if (result > MAX_TDKLINE_TIME)
1723 result = MAX_TDKLINE_TIME;
1724
1725 result = result * 60; /* turn it into seconds */
1726
1727 return result;
1728 }
1729
1730 /* valid_wild_card_simple()
1731 *
1732 * inputs - data to check for sufficient non-wildcard characters
1733 * outputs - 1 if valid, else 0
1734 * side effects - none
1735 */
1736 int
1737 valid_wild_card_simple(const char *data)
1738 {
1739 const unsigned char *p = (const unsigned char *)data;
1740 unsigned char tmpch = '\0';
1741 int nonwild = 0;
1742
1743 while ((tmpch = *p++))
1744 {
1745 if (tmpch == '\\')
1746 {
1747 ++p;
1748 if (++nonwild >= ConfigFileEntry.min_nonwildcard_simple)
1749 return 1;
1750 }
1751 else if (!IsMWildChar(tmpch))
1752 {
1753 if (++nonwild >= ConfigFileEntry.min_nonwildcard_simple)
1754 return 1;
1755 }
1756 }
1757
1758 return 0;
1759 }
1760
1761 /* valid_wild_card()
1762 *
1763 * input - pointer to client
1764 * - int flag, 0 for no warning oper 1 for warning oper
1765 * - count of following varargs to check
1766 * output - 0 if not valid, 1 if valid
1767 * side effects - NOTICE is given to source_p if warn is 1
1768 */
1769 int
1770 valid_wild_card(struct Client *source_p, int warn, int count, ...)
1771 {
1772 char tmpch;
1773 int nonwild = 0;
1774 va_list args;
1775
1776 /*
1777 * Now we must check the user and host to make sure there
1778 * are at least NONWILDCHARS non-wildcard characters in
1779 * them, otherwise assume they are attempting to kline
1780 * *@* or some variant of that. This code will also catch
1781 * people attempting to kline *@*.tld, as long as NONWILDCHARS
1782 * is greater than 3. In that case, there are only 3 non-wild
1783 * characters (tld), so if NONWILDCHARS is 4, the kline will
1784 * be disallowed.
1785 * -wnder
1786 */
1787
1788 va_start(args, count);
1789
1790 while (count--)
1791 {
1792 const char *p = va_arg(args, const char *);
1793 if (p == NULL)
1794 continue;
1795
1796 while ((tmpch = *p++))
1797 {
1798 if (!IsKWildChar(tmpch))
1799 {
1800 /*
1801 * If we find enough non-wild characters, we can
1802 * break - no point in searching further.
1803 */
1804 if (++nonwild >= ConfigFileEntry.min_nonwildcard)
1805 {
1806 va_end(args);
1807 return 1;
1808 }
1809 }
1810 }
1811 }
1812
1813 if (warn)
1814 sendto_one_notice(source_p, &me,
1815 ":Please include at least %d non-wildcard characters with the mask",
1816 ConfigFileEntry.min_nonwildcard);
1817 va_end(args);
1818 return 0;
1819 }
1820
1821 /* XXX should this go into a separate file ? -Dianora */
1822 /* parse_aline
1823 *
1824 * input - pointer to cmd name being used
1825 * - pointer to client using cmd
1826 * - parc parameter count
1827 * - parv[] list of parameters to parse
1828 * - parse_flags bit map of things to test
1829 * - pointer to user or string to parse into
1830 * - pointer to host or NULL to parse into if non NULL
1831 * - pointer to optional tkline time or NULL
1832 * - pointer to target_server to parse into if non NULL
1833 * - pointer to reason to parse into
1834 *
1835 * output - 1 if valid, -1 if not valid
1836 * side effects - A generalised k/d/x etc. line parser,
1837 * "ALINE [time] user@host|string [ON] target :reason"
1838 * will parse returning a parsed user, host if
1839 * h_p pointer is non NULL, string otherwise.
1840 * if tkline_time pointer is non NULL a tk line will be set
1841 * to non zero if found.
1842 * if tkline_time pointer is NULL and tk line is found,
1843 * error is reported.
1844 * if target_server is NULL and an "ON" is found error
1845 * is reported.
1846 * if reason pointer is NULL ignore pointer,
1847 * this allows use of parse_a_line in unkline etc.
1848 *
1849 * - Dianora
1850 */
1851 int
1852 parse_aline(const char *cmd, struct Client *source_p,
1853 int parc, char **parv,
1854 int parse_flags, char **up_p, char **h_p, time_t *tkline_time,
1855 char **target_server, char **reason)
1856 {
1857 int found_tkline_time=0;
1858 static char def_reason[] = CONF_NOREASON;
1859 static char user[USERLEN*4+1];
1860 static char host[HOSTLEN*4+1];
1861
1862 parv++;
1863 parc--;
1864
1865 found_tkline_time = valid_tkline(*parv, TK_MINUTES);
1866
1867 if (found_tkline_time != 0)
1868 {
1869 parv++;
1870 parc--;
1871
1872 if (tkline_time != NULL)
1873 *tkline_time = found_tkline_time;
1874 else
1875 {
1876 sendto_one_notice(source_p, &me, ":temp_line not supported by %s", cmd);
1877 return -1;
1878 }
1879 }
1880
1881 if (parc == 0)
1882 {
1883 sendto_one_numeric(source_p, &me, ERR_NEEDMOREPARAMS, cmd);
1884 return -1;
1885 }
1886
1887 if (h_p == NULL)
1888 *up_p = *parv;
1889 else
1890 {
1891 if (find_user_host(source_p, *parv, user, host, parse_flags) == 0)
1892 return -1;
1893
1894 *up_p = user;
1895 *h_p = host;
1896 }
1897
1898 parc--;
1899 parv++;
1900
1901 if (parc != 0)
1902 {
1903 if (irccmp(*parv, "ON") == 0)
1904 {
1905 parc--;
1906 parv++;
1907
1908 if (target_server == NULL)
1909 {
1910 sendto_one_notice(source_p, &me, ":ON server not supported by %s", cmd);
1911 return -1;
1912 }
1913
1914 if (!HasOFlag(source_p, OPER_FLAG_REMOTEBAN))
1915 {
1916 sendto_one_numeric(source_p, &me, ERR_NOPRIVS, "remoteban");
1917 return -1;
1918 }
1919
1920 if (parc == 0 || EmptyString(*parv))
1921 {
1922 sendto_one_numeric(source_p, &me, ERR_NEEDMOREPARAMS, cmd);
1923 return -1;
1924 }
1925
1926 *target_server = *parv;
1927 parc--;
1928 parv++;
1929 }
1930 else
1931 {
1932 /* Make sure target_server *is* NULL if no ON server found
1933 * caller probably NULL'd it first, but no harm to do it again -db
1934 */
1935 if (target_server != NULL)
1936 *target_server = NULL;
1937 }
1938 }
1939
1940 if (h_p != NULL)
1941 {
1942 if (strchr(user, '!') != NULL)
1943 {
1944 sendto_one_notice(source_p, &me, ":Invalid character '!' in kline");
1945 return -1;
1946 }
1947
1948 if ((parse_flags & AWILD) && !valid_wild_card(source_p, 1, 2, *up_p, *h_p))
1949 return -1;
1950 }
1951 else
1952 if ((parse_flags & AWILD) && !valid_wild_card(source_p, 1, 1, *up_p))
1953 return -1;
1954
1955 if (reason != NULL)
1956 {
1957 if (parc != 0 && !EmptyString(*parv))
1958 {
1959 *reason = *parv;
1960 if (!valid_comment(source_p, *reason, 1))
1961 return -1;
1962 }
1963 else
1964 *reason = def_reason;
1965 }
1966
1967 return 1;
1968 }
1969
1970 /* find_user_host()
1971 *
1972 * inputs - pointer to client placing kline
1973 * - pointer to user_host_or_nick
1974 * - pointer to user buffer
1975 * - pointer to host buffer
1976 * output - 0 if not ok to kline, 1 to kline i.e. if valid user host
1977 * side effects -
1978 */
1979 static int
1980 find_user_host(struct Client *source_p, char *user_host_or_nick,
1981 char *luser, char *lhost, unsigned int flags)
1982 {
1983 struct Client *target_p = NULL;
1984 char *hostp = NULL;
1985
1986 if (lhost == NULL)
1987 {
1988 strlcpy(luser, user_host_or_nick, USERLEN*4 + 1);
1989 return 1;
1990 }
1991
1992 if ((hostp = strchr(user_host_or_nick, '@')) || *user_host_or_nick == '*')
1993 {
1994 /* Explicit user@host mask given */
1995
1996 if (hostp != NULL) /* I'm a little user@host */
1997 {
1998 *(hostp++) = '\0'; /* short and squat */
1999 if (*user_host_or_nick)
2000 strlcpy(luser, user_host_or_nick, USERLEN*4 + 1); /* here is my user */
2001 else
2002 strcpy(luser, "*");
2003
2004 if (*hostp)
2005 strlcpy(lhost, hostp, HOSTLEN + 1); /* here is my host */
2006 else
2007 strcpy(lhost, "*");
2008 }
2009 else
2010 {
2011 luser[0] = '*'; /* no @ found, assume its *@somehost */
2012 luser[1] = '\0';
2013 strlcpy(lhost, user_host_or_nick, HOSTLEN*4 + 1);
2014 }
2015
2016 return 1;
2017 }
2018 else
2019 {
2020 /* Try to find user@host mask from nick */
2021 /* Okay to use source_p as the first param, because source_p == client_p */
2022 if ((target_p =
2023 find_chasing(source_p, user_host_or_nick)) == NULL)
2024 return 0; /* find_chasing sends ERR_NOSUCHNICK */
2025
2026 if (IsExemptKline(target_p))
2027 {
2028 if (!IsServer(source_p))
2029 sendto_one_notice(source_p, &me, ":%s is E-lined", target_p->name);
2030 return 0;
2031 }
2032
2033 /*
2034 * turn the "user" bit into "*user", blow away '~'
2035 * if found in original user name (non-idented)
2036 */
2037 strlcpy(luser, target_p->username, USERLEN*4 + 1);
2038
2039 if (target_p->username[0] == '~')
2040 luser[0] = '*';
2041
2042 if (target_p->sockhost[0] == '\0' ||
2043 (target_p->sockhost[0] == '0' && target_p->sockhost[1] == '\0'))
2044 strlcpy(lhost, target_p->host, HOSTLEN*4 + 1);
2045 else
2046 strlcpy(lhost, target_p->sockhost, HOSTLEN*4 + 1);
2047 return 1;
2048 }
2049
2050 return 0;
2051 }
2052
2053 /* valid_comment()
2054 *
2055 * inputs - pointer to client
2056 * - pointer to comment
2057 * output - 0 if no valid comment,
2058 * - 1 if valid
2059 * side effects - truncates reason where necessary
2060 */
2061 int
2062 valid_comment(struct Client *source_p, char *comment, int warn)
2063 {
2064 if (strlen(comment) > REASONLEN)
2065 comment[REASONLEN-1] = '\0';
2066
2067 return 1;
2068 }
2069
2070 /* match_conf_password()
2071 *
2072 * inputs - pointer to given password
2073 * - pointer to Conf
2074 * output - 1 or 0 if match
2075 * side effects - none
2076 */
2077 int
2078 match_conf_password(const char *password, const struct MaskItem *conf)
2079 {
2080 const char *encr = NULL;
2081
2082 if (EmptyString(password) || EmptyString(conf->passwd))
2083 return 0;
2084
2085 if (conf->flags & CONF_FLAGS_ENCRYPTED)
2086 encr = crypt(password, conf->passwd);
2087 else
2088 encr = password;
2089
2090 return encr && !strcmp(encr, conf->passwd);
2091 }
2092
2093 /*
2094 * cluster_a_line
2095 *
2096 * inputs - client sending the cluster
2097 * - command name "KLINE" "XLINE" etc.
2098 * - capab -- CAP_KLN etc. from server.h
2099 * - cluster type -- CLUSTER_KLINE etc. from conf.h
2100 * - pattern and args to send along
2101 * output - none
2102 * side effects - Take source_p send the pattern with args given
2103 * along to all servers that match capab and cluster type
2104 */
2105 void
2106 cluster_a_line(struct Client *source_p, const char *command,
2107 int capab, int cluster_type, const char *pattern, ...)
2108 {
2109 va_list args;
2110 char buffer[IRCD_BUFSIZE] = "";
2111 const dlink_node *ptr = NULL;
2112
2113 va_start(args, pattern);
2114 vsnprintf(buffer, sizeof(buffer), pattern, args);
2115 va_end(args);
2116
2117 DLINK_FOREACH(ptr, cluster_items.head)
2118 {
2119 const struct MaskItem *conf = ptr->data;
2120
2121 if (conf->flags & cluster_type)
2122 sendto_match_servs(source_p, conf->name, CAP_CLUSTER|capab,
2123 "%s %s %s", command, conf->name, buffer);
2124 }
2125 }
2126
2127 /*
2128 * split_nuh
2129 *
2130 * inputs - pointer to original mask (modified in place)
2131 * - pointer to pointer where nick should go
2132 * - pointer to pointer where user should go
2133 * - pointer to pointer where host should go
2134 * output - NONE
2135 * side effects - mask is modified in place
2136 * If nick pointer is NULL, ignore writing to it
2137 * this allows us to use this function elsewhere.
2138 *
2139 * mask nick user host
2140 * ---------------------- ------- ------- ------
2141 * Dianora!db@db.net Dianora db db.net
2142 * Dianora Dianora * *
2143 * db.net * * db.net
2144 * OR if nick pointer is NULL
2145 * Dianora - * Dianora
2146 * Dianora! Dianora * *
2147 * Dianora!@ Dianora * *
2148 * Dianora!db Dianora db *
2149 * Dianora!@db.net Dianora * db.net
2150 * db@db.net * db db.net
2151 * !@ * * *
2152 * @ * * *
2153 * ! * * *
2154 */
2155 void
2156 split_nuh(struct split_nuh_item *const iptr)
2157 {
2158 char *p = NULL, *q = NULL;
2159
2160 if (iptr->nickptr)
2161 strlcpy(iptr->nickptr, "*", iptr->nicksize);
2162 if (iptr->userptr)
2163 strlcpy(iptr->userptr, "*", iptr->usersize);
2164 if (iptr->hostptr)
2165 strlcpy(iptr->hostptr, "*", iptr->hostsize);
2166
2167 if ((p = strchr(iptr->nuhmask, '!')))
2168 {
2169 *p = '\0';
2170
2171 if (iptr->nickptr && *iptr->nuhmask)
2172 strlcpy(iptr->nickptr, iptr->nuhmask, iptr->nicksize);
2173
2174 if ((q = strchr(++p, '@')))
2175 {
2176 *q++ = '\0';
2177
2178 if (*p)
2179 strlcpy(iptr->userptr, p, iptr->usersize);
2180
2181 if (*q)
2182 strlcpy(iptr->hostptr, q, iptr->hostsize);
2183 }
2184 else
2185 {
2186 if (*p)
2187 strlcpy(iptr->userptr, p, iptr->usersize);
2188 }
2189 }
2190 else
2191 {
2192 /* No ! found so lets look for a user@host */
2193 if ((p = strchr(iptr->nuhmask, '@')))
2194 {
2195 /* if found a @ */
2196 *p++ = '\0';
2197
2198 if (*iptr->nuhmask)
2199 strlcpy(iptr->userptr, iptr->nuhmask, iptr->usersize);
2200
2201 if (*p)
2202 strlcpy(iptr->hostptr, p, iptr->hostsize);
2203 }
2204 else
2205 {
2206 /* no @ found */
2207 if (!iptr->nickptr || strpbrk(iptr->nuhmask, ".:"))
2208 strlcpy(iptr->hostptr, iptr->nuhmask, iptr->hostsize);
2209 else
2210 strlcpy(iptr->nickptr, iptr->nuhmask, iptr->nicksize);
2211 }
2212 }
2213 }

Properties

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