2 * charybdis: an advanced ircd.
3 * client.c: Controls clients.
5 * Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center
6 * Copyright (C) 1996-2002 Hybrid Development Team
7 * Copyright (C) 2002-2005 ircd-ratbox development team
8 * Copyright (C) 2007 William Pitcock
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
25 * $Id: client.c 3514 2007-06-06 16:25:21Z nenolod $
40 #include "s_newconf.h"
53 #include "blacklist.h"
56 #include "irc_dictionary.h"
59 #define DEBUG_EXITED_CLIENTS
61 static void check_pings_list(rb_dlink_list
* list
);
62 static void check_unknowns_list(rb_dlink_list
* list
);
63 static void free_exited_clients(void *unused
);
64 static void exit_aborted_clients(void *unused
);
66 static int exit_remote_client(struct Client
*, struct Client
*, struct Client
*,const char *);
67 static int exit_remote_server(struct Client
*, struct Client
*, struct Client
*,const char *);
68 static int exit_local_client(struct Client
*, struct Client
*, struct Client
*,const char *);
69 static int exit_unknown_client(struct Client
*, struct Client
*, struct Client
*,const char *);
70 static int exit_local_server(struct Client
*, struct Client
*, struct Client
*,const char *);
71 static int qs_server(struct Client
*, struct Client
*, struct Client
*, const char *comment
);
73 static EVH check_pings
;
75 static rb_bh
*client_heap
= NULL
;
76 static rb_bh
*lclient_heap
= NULL
;
77 static rb_bh
*pclient_heap
= NULL
;
78 static rb_bh
*user_heap
= NULL
;
79 static rb_bh
*away_heap
= NULL
;
80 static char current_uid
[IDLEN
];
82 struct Dictionary
*nd_dict
= NULL
;
90 rb_dlink_list dead_list
;
91 #ifdef DEBUG_EXITED_CLIENTS
92 static rb_dlink_list dead_remote_list
;
98 struct Client
*client
;
99 char notice
[REASONLEN
];
102 static rb_dlink_list abort_list
;
110 * side effects - initialize client free memory
116 * start off the check ping event .. -- adrian
117 * Every 30 seconds is plenty -- db
119 client_heap
= rb_bh_create(sizeof(struct Client
), CLIENT_HEAP_SIZE
, "client_heap");
120 lclient_heap
= rb_bh_create(sizeof(struct LocalUser
), LCLIENT_HEAP_SIZE
, "lclient_heap");
121 pclient_heap
= rb_bh_create(sizeof(struct PreClient
), PCLIENT_HEAP_SIZE
, "pclient_heap");
122 user_heap
= rb_bh_create(sizeof(struct User
), USER_HEAP_SIZE
, "user_heap");
123 away_heap
= rb_bh_create(AWAYLEN
, AWAY_HEAP_SIZE
, "away_heap");
125 rb_event_addish("check_pings", check_pings
, NULL
, 30);
126 rb_event_addish("free_exited_clients", &free_exited_clients
, NULL
, 4);
127 rb_event_addish("exit_aborted_clients", exit_aborted_clients
, NULL
, 1);
128 rb_event_add("flood_recalc", flood_recalc
, NULL
, 1);
130 nd_dict
= irc_dictionary_create(irccmp
);
135 * make_client - create a new Client struct and set it to initial state.
137 * from == NULL, create local client (a client connected
140 * from, create remote client (behind a socket
141 * associated with the client defined by
142 * 'from'). ('from' is a local client!!).
145 make_client(struct Client
*from
)
147 struct Client
*client_p
= NULL
;
148 struct LocalUser
*localClient
;
150 client_p
= rb_bh_alloc(client_heap
);
154 client_p
->from
= client_p
; /* 'from' of local client is self! */
156 localClient
= rb_bh_alloc(lclient_heap
);
157 SetMyConnect(client_p
);
158 client_p
->localClient
= localClient
;
160 client_p
->localClient
->lasttime
= client_p
->localClient
->firsttime
= rb_current_time();
162 client_p
->localClient
->F
= NULL
;
164 client_p
->preClient
= rb_bh_alloc(pclient_heap
);;
166 /* as good a place as any... */
167 rb_dlinkAdd(client_p
, &client_p
->localClient
->tnode
, &unknown_list
);
170 { /* from is not NULL */
171 client_p
->localClient
= NULL
;
172 client_p
->preClient
= NULL
;
173 client_p
->from
= from
; /* 'from' of local client is self! */
176 SetUnknown(client_p
);
177 strcpy(client_p
->username
, "unknown");
183 free_pre_client(struct Client
*client_p
)
185 struct Blacklist
*blptr
;
187 s_assert(NULL
!= client_p
);
189 if(client_p
->preClient
== NULL
)
192 blptr
= client_p
->preClient
->dnsbl_listed
;
194 unref_blacklist(blptr
);
195 abort_blacklist_queries(client_p
);
196 rb_bh_free(pclient_heap
, client_p
->preClient
);
197 client_p
->preClient
= NULL
;
201 free_local_client(struct Client
*client_p
)
203 s_assert(NULL
!= client_p
);
204 s_assert(&me
!= client_p
);
206 if(client_p
->localClient
== NULL
)
210 * clean up extra sockets from P-lines which have been discarded.
212 if(client_p
->localClient
->listener
)
214 s_assert(0 < client_p
->localClient
->listener
->ref_count
);
215 if(0 == --client_p
->localClient
->listener
->ref_count
216 && !client_p
->localClient
->listener
->active
)
217 free_listener(client_p
->localClient
->listener
);
218 client_p
->localClient
->listener
= 0;
221 if(client_p
->localClient
->F
!= NULL
)
223 del_from_cli_fd_hash(client_p
);
224 rb_close(client_p
->localClient
->F
);
227 if(client_p
->localClient
->passwd
)
229 memset(client_p
->localClient
->passwd
, 0,
230 strlen(client_p
->localClient
->passwd
));
231 rb_free(client_p
->localClient
->passwd
);
234 rb_free(client_p
->localClient
->auth_user
);
235 rb_free(client_p
->localClient
->challenge
);
236 rb_free(client_p
->localClient
->fullcaps
);
237 rb_free(client_p
->localClient
->opername
);
238 rb_free(client_p
->localClient
->mangledhost
);
239 if (client_p
->localClient
->privset
)
240 privilegeset_unref(client_p
->localClient
->privset
);
243 ssld_decrement_clicount(client_p
->localClient
->ssl_ctl
);
245 if(IsCapable(client_p
, CAP_ZIP
))
246 ssld_decrement_clicount(client_p
->localClient
->z_ctl
);
248 rb_bh_free(lclient_heap
, client_p
->localClient
);
249 client_p
->localClient
= NULL
;
253 free_client(struct Client
*client_p
)
255 s_assert(NULL
!= client_p
);
256 s_assert(&me
!= client_p
);
257 free_local_client(client_p
);
258 free_pre_client(client_p
);
259 rb_free(client_p
->certfp
);
260 rb_bh_free(client_heap
, client_p
);
264 * check_pings - go through the local client list and check activity
265 * kill off stuff that should die
267 * inputs - NOT USED (from event)
268 * output - next time_t when check_pings() should be called again
272 * A PING can be sent to clients as necessary.
274 * Client/Server ping outs are handled.
278 * Addon from adrian. We used to call this after nextping seconds,
279 * however I've changed it to run once a second. This is only for
280 * PING timeouts, not K/etc-line checks (thanks dianora!). Having it
281 * run once a second makes life a lot easier - when a new client connects
282 * and they need a ping in 4 seconds, if nextping was set to 20 seconds
283 * we end up waiting 20 seconds. This is stupid. :-)
284 * I will optimise (hah!) check_pings() once I've finished working on
285 * tidying up other network IO evilnesses.
290 check_pings(void *notused
)
292 check_pings_list(&lclient_list
);
293 check_pings_list(&serv_list
);
294 check_unknowns_list(&unknown_list
);
300 * inputs - pointer to list to check
305 check_pings_list(rb_dlink_list
* list
)
307 char scratch
[32]; /* way too generous but... */
308 struct Client
*client_p
; /* current local client_p being examined */
309 int ping
= 0; /* ping time value from client */
310 rb_dlink_node
*ptr
, *next_ptr
;
312 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, list
->head
)
314 client_p
= ptr
->data
;
316 if(!MyConnect(client_p
) || IsDead(client_p
))
319 ping
= get_client_ping(client_p
);
321 if(ping
< (rb_current_time() - client_p
->localClient
->lasttime
))
324 * If the client/server hasnt talked to us in 2*ping seconds
325 * and it has a ping time, then close its connection.
327 if(((rb_current_time() - client_p
->localClient
->lasttime
) >= (2 * ping
)
328 && (client_p
->flags
& FLAGS_PINGSENT
)))
330 if(IsServer(client_p
))
332 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
333 "No response from %s, closing link",
336 "No response from %s, closing link",
337 log_client_name(client_p
, HIDE_IP
));
339 (void) rb_snprintf(scratch
, sizeof(scratch
),
340 "Ping timeout: %d seconds",
341 (int) (rb_current_time() - client_p
->localClient
->lasttime
));
343 exit_client(client_p
, client_p
, &me
, scratch
);
346 else if((client_p
->flags
& FLAGS_PINGSENT
) == 0)
349 * if we havent PINGed the connection and we havent
350 * heard from it in a while, PING it to make sure
353 client_p
->flags
|= FLAGS_PINGSENT
;
354 /* not nice but does the job */
355 client_p
->localClient
->lasttime
= rb_current_time() - ping
;
356 sendto_one(client_p
, "PING :%s", me
.name
);
365 * check_unknowns_list
367 * inputs - pointer to list of unknown clients
369 * side effects - unknown clients get marked for termination after n seconds
372 check_unknowns_list(rb_dlink_list
* list
)
374 rb_dlink_node
*ptr
, *next_ptr
;
375 struct Client
*client_p
;
378 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, list
->head
)
380 client_p
= ptr
->data
;
382 if(IsDead(client_p
) || IsClosing(client_p
))
385 /* still has DNSbls to validate against */
386 if(client_p
->preClient
!= NULL
&&
387 rb_dlink_list_length(&client_p
->preClient
->dnsbl_queries
) > 0)
391 * Check UNKNOWN connections - if they have been in this state
392 * for > 30s, close them.
395 timeout
= IsAnyServer(client_p
) ? ConfigFileEntry
.connect_timeout
: 30;
396 if((rb_current_time() - client_p
->localClient
->firsttime
) > timeout
)
398 if(IsAnyServer(client_p
))
400 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) ? L_NETWIDE
: L_ALL
,
401 "No response from %s, closing link",
404 "No response from %s, closing link",
405 log_client_name(client_p
, HIDE_IP
));
407 exit_client(client_p
, client_p
, &me
, "Connection timed out");
413 notify_banned_client(struct Client
*client_p
, struct ConfItem
*aconf
, int ban
)
415 static const char conn_closed
[] = "Connection closed";
416 static const char d_lined
[] = "D-lined";
417 static const char k_lined
[] = "K-lined";
418 const char *reason
= NULL
;
419 const char *exit_reason
= conn_closed
;
421 if(ConfigFileEntry
.kline_with_reason
)
423 reason
= get_user_ban_reason(aconf
);
424 exit_reason
= reason
;
428 reason
= aconf
->status
== D_LINED
? d_lined
: k_lined
;
431 if(ban
== D_LINED
&& !IsPerson(client_p
))
432 sendto_one(client_p
, "NOTICE DLINE :*** You have been D-lined");
434 sendto_one(client_p
, form_str(ERR_YOUREBANNEDCREEP
),
435 me
.name
, client_p
->name
, reason
);
437 exit_client(client_p
, client_p
, &me
,
438 EmptyString(ConfigFileEntry
.kline_reason
) ? exit_reason
:
439 ConfigFileEntry
.kline_reason
);
446 * side effects - Check all connections for a pending k/dline against the
447 * client, exit the client if found.
450 check_banned_lines(void)
457 /* check_klines_event()
461 * side effects - check_klines() is called, kline_queued unset
464 check_klines_event(void *unused
)
474 * side effects - all clients will be checked for klines
479 struct Client
*client_p
;
480 struct ConfItem
*aconf
;
482 rb_dlink_node
*next_ptr
;
484 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, lclient_list
.head
)
486 client_p
= ptr
->data
;
488 if(IsMe(client_p
) || !IsPerson(client_p
))
491 if((aconf
= find_kline(client_p
)) != NULL
)
493 if(IsExemptKline(client_p
))
495 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
496 "KLINE over-ruled for %s, client is kline_exempt [%s@%s]",
497 get_client_name(client_p
, HIDE_IP
),
498 aconf
->user
, aconf
->host
);
502 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
503 "KLINE active for %s",
504 get_client_name(client_p
, HIDE_IP
));
506 notify_banned_client(client_p
, aconf
, K_LINED
);
516 * side effects - all clients will be checked for dlines
521 struct Client
*client_p
;
522 struct ConfItem
*aconf
;
524 rb_dlink_node
*next_ptr
;
526 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, lclient_list
.head
)
528 client_p
= ptr
->data
;
533 if((aconf
= find_dline((struct sockaddr
*)&client_p
->localClient
->ip
,client_p
->localClient
->ip
.ss_family
)) != NULL
)
535 if(aconf
->status
& CONF_EXEMPTDLINE
)
538 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
539 "DLINE active for %s",
540 get_client_name(client_p
, HIDE_IP
));
542 notify_banned_client(client_p
, aconf
, D_LINED
);
547 /* dlines need to be checked against unknowns too */
548 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, unknown_list
.head
)
550 client_p
= ptr
->data
;
552 if((aconf
= find_dline((struct sockaddr
*)&client_p
->localClient
->ip
,client_p
->localClient
->ip
.ss_family
)) != NULL
)
554 if(aconf
->status
& CONF_EXEMPTDLINE
)
557 notify_banned_client(client_p
, aconf
, D_LINED
);
566 * side effects - all clients will be checked for xlines
571 struct Client
*client_p
;
572 struct ConfItem
*aconf
;
574 rb_dlink_node
*next_ptr
;
576 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, lclient_list
.head
)
578 client_p
= ptr
->data
;
580 if(IsMe(client_p
) || !IsPerson(client_p
))
583 if((aconf
= find_xline(client_p
->info
, 1)) != NULL
)
585 if(IsExemptKline(client_p
))
587 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
588 "XLINE over-ruled for %s, client is kline_exempt [%s]",
589 get_client_name(client_p
, HIDE_IP
),
594 sendto_realops_snomask(SNO_GENERAL
, L_ALL
, "XLINE active for %s",
595 get_client_name(client_p
, HIDE_IP
));
597 (void) exit_client(client_p
, client_p
, &me
, "Bad user info");
605 * inputs - resv, reason, time
607 * side effects - all local clients matching resv will be FNC'd
610 resv_nick_fnc(const char *mask
, const char *reason
, int temp_time
)
612 struct Client
*client_p
, *target_p
;
614 rb_dlink_node
*next_ptr
;
616 char note
[NICKLEN
+10];
618 if (!ConfigFileEntry
.resv_fnc
)
621 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, lclient_list
.head
)
623 client_p
= ptr
->data
;
625 if(IsMe(client_p
) || !IsPerson(client_p
) || IsExemptResv(client_p
))
628 /* Skip users that already have UID nicks. */
629 if(IsDigit(client_p
->name
[0]))
632 if(match_esc(mask
, client_p
->name
))
637 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
638 "RESV forced nick change for %s!%s@%s to %s; nick matched [%s] (%s)",
639 client_p
->name
, client_p
->username
, client_p
->host
, nick
, mask
, reason
);
641 sendto_realops_snomask(SNO_NCHANGE
, L_ALL
,
642 "Nick change: From %s to %s [%s@%s]",
643 client_p
->name
, nick
, client_p
->username
, client_p
->host
);
648 sendto_one_notice(client_p
,
649 ":*** Nick %s is temporarily unavailable on this server.",
654 sendto_one_notice(client_p
,
655 ":*** Nick %s is no longer available on this server.",
659 /* Do all of the nick-changing gymnastics. */
660 client_p
->tsinfo
= rb_current_time();
661 add_history(client_p
, 1);
663 monitor_signoff(client_p
);
665 invalidate_bancache_user(client_p
);
667 sendto_common_channels_local(client_p
, NOCAPS
, ":%s!%s@%s NICK :%s",
668 client_p
->name
, client_p
->username
, client_p
->host
, nick
);
669 sendto_server(client_p
, NULL
, CAP_TS6
, NOCAPS
, ":%s NICK %s :%ld",
670 use_id(client_p
), nick
, (long) client_p
->tsinfo
);
672 del_from_client_hash(client_p
->name
, client_p
);
673 rb_strlcpy(client_p
->name
, nick
, sizeof(client_p
->name
));
674 add_to_client_hash(nick
, client_p
);
676 monitor_signon(client_p
);
678 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, client_p
->on_allow_list
.head
)
680 target_p
= ptr
->data
;
681 rb_dlinkFindDestroy(client_p
, &target_p
->localClient
->allow_list
);
682 rb_dlinkDestroy(ptr
, &client_p
->on_allow_list
);
685 rb_snprintf(note
, sizeof(note
), "Nick: %s", nick
);
686 rb_note(client_p
->localClient
->F
, note
);
692 * update_client_exit_stats
694 * input - pointer to client
699 update_client_exit_stats(struct Client
*client_p
)
701 if(IsServer(client_p
))
703 sendto_realops_snomask(SNO_EXTERNAL
, L_ALL
,
704 "Server %s split from %s",
705 client_p
->name
, client_p
->servptr
->name
);
706 if(HasSentEob(client_p
))
709 else if(IsClient(client_p
))
714 if(IsInvisible(client_p
))
718 if(splitchecking
&& !splitmode
)
719 check_splitmode(NULL
);
723 * release_client_state
725 * input - pointer to client to release
730 release_client_state(struct Client
*client_p
)
732 if(client_p
->user
!= NULL
)
734 free_user(client_p
->user
, client_p
); /* try this here */
738 if(client_p
->serv
->user
!= NULL
)
739 free_user(client_p
->serv
->user
, client_p
);
740 if(client_p
->serv
->fullcaps
)
741 rb_free(client_p
->serv
->fullcaps
);
742 rb_free(client_p
->serv
);
747 * remove_client_from_list
748 * inputs - point to client to remove
750 * side effects - taken the code from ExitOneClient() for this
751 * and placed it here. - avalon
754 remove_client_from_list(struct Client
*client_p
)
756 s_assert(NULL
!= client_p
);
761 /* A client made with make_client()
762 * is on the unknown_list until removed.
763 * If it =does= happen to exit before its removed from that list
764 * and its =not= on the global_client_list, it will core here.
765 * short circuit that case now -db
767 if(client_p
->node
.prev
== NULL
&& client_p
->node
.next
== NULL
)
770 rb_dlinkDelete(&client_p
->node
, &global_client_list
);
772 update_client_exit_stats(client_p
);
777 * find_person - find person by (nick)name.
778 * inputs - pointer to name
779 * output - return client pointer
783 find_person(const char *name
)
785 struct Client
*c2ptr
;
787 c2ptr
= find_client(name
);
789 if(c2ptr
&& IsPerson(c2ptr
))
795 find_named_person(const char *name
)
797 struct Client
*c2ptr
;
799 c2ptr
= find_named_client(name
);
801 if(c2ptr
&& IsPerson(c2ptr
))
808 * find_chasing - find the client structure for a nick name (user)
809 * using history mechanism if necessary. If the client is not found,
810 * an error message (NO SUCH NICK) is generated. If the client was found
811 * through the history, chasing will be 1 and otherwise 0.
814 find_chasing(struct Client
*source_p
, const char *user
, int *chasing
)
818 if(MyClient(source_p
))
819 who
= find_named_person(user
);
821 who
= find_person(user
);
826 if(who
|| IsDigit(*user
))
829 if(!(who
= get_history(user
, (long) KILLCHASETIMELIMIT
)))
831 sendto_one_numeric(source_p
, ERR_NOSUCHNICK
,
832 form_str(ERR_NOSUCHNICK
), user
);
841 * get_client_name - Return the name of the client
842 * for various tracking and
843 * admin purposes. The main purpose of this function is to
844 * return the "socket host" name of the client, if that
845 * differs from the advertised name (other than case).
846 * But, this can be used to any client structure.
849 * Watch out the allocation of "nbuf", if either source_p->name
850 * or source_p->sockhost gets changed into pointers instead of
851 * directly allocated within the structure...
854 * Function return either a pointer to the structure (source_p) or
855 * to internal buffer (nbuf). *NEVER* use the returned pointer
856 * to modify what it points!!!
860 get_client_name(struct Client
*client
, int showip
)
862 static char nbuf
[HOSTLEN
* 2 + USERLEN
+ 5];
864 s_assert(NULL
!= client
);
868 if(MyConnect(client
))
870 if(!irccmp(client
->name
, client
->host
))
873 if(ConfigFileEntry
.hide_spoof_ips
&&
874 showip
== SHOW_IP
&& IsIPSpoof(client
))
876 if(IsAnyServer(client
))
879 /* And finally, let's get the host information, ip or name */
883 rb_snprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]",
884 client
->name
, client
->username
,
888 rb_snprintf(nbuf
, sizeof(nbuf
), "%s[%s@255.255.255.255]",
889 client
->name
, client
->username
);
892 rb_snprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]",
893 client
->name
, client
->username
, client
->host
);
898 /* As pointed out by Adel Mezibra
899 * Neph|l|m@EFnet. Was missing a return here.
906 * This version is the same as get_client_name, but doesnt contain the
907 * code that will hide IPs always. This should be used for logfiles.
910 log_client_name(struct Client
*target_p
, int showip
)
912 static char nbuf
[HOSTLEN
* 2 + USERLEN
+ 5];
917 if(MyConnect(target_p
))
919 if(irccmp(target_p
->name
, target_p
->host
) == 0)
920 return target_p
->name
;
925 rb_snprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]", target_p
->name
,
926 target_p
->username
, target_p
->sockhost
);
930 rb_snprintf(nbuf
, sizeof(nbuf
), "%s[%s@255.255.255.255]",
931 target_p
->name
, target_p
->username
);
934 rb_snprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]", target_p
->name
,
935 target_p
->username
, target_p
->host
);
941 return target_p
->name
;
944 /* is_remote_connect - Returns whether a server was /connect'ed by a remote
945 * oper (send notices netwide) */
947 is_remote_connect(struct Client
*client_p
)
951 if (client_p
->serv
== NULL
)
953 oper
= find_named_person(client_p
->serv
->by
);
954 return oper
!= NULL
&& IsOper(oper
) && !MyConnect(oper
);
958 free_exited_clients(void *unused
)
960 rb_dlink_node
*ptr
, *next
;
961 struct Client
*target_p
;
963 RB_DLINK_FOREACH_SAFE(ptr
, next
, dead_list
.head
)
965 target_p
= ptr
->data
;
967 #ifdef DEBUG_EXITED_CLIENTS
969 struct abort_client
*abt
;
973 RB_DLINK_FOREACH(aptr
, abort_list
.head
)
976 if(abt
->client
== target_p
)
979 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
980 "On abort_list: %s stat: %u flags: %u/%u handler: %c",
981 target_p
->name
, (unsigned int) target_p
->status
,
982 target_p
->flags
, target_p
->flags2
, target_p
->handler
);
983 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
984 "Please report this to the charybdis developers!");
991 rb_dlinkDestroy(ptr
, &dead_list
);
997 if(ptr
->data
== NULL
)
999 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1000 "Warning: null client on dead_list!");
1001 rb_dlinkDestroy(ptr
, &dead_list
);
1004 release_client_state(target_p
);
1005 free_client(target_p
);
1006 rb_dlinkDestroy(ptr
, &dead_list
);
1009 #ifdef DEBUG_EXITED_CLIENTS
1010 RB_DLINK_FOREACH_SAFE(ptr
, next
, dead_remote_list
.head
)
1012 target_p
= ptr
->data
;
1014 if(ptr
->data
== NULL
)
1016 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1017 "Warning: null client on dead_list!");
1018 rb_dlinkDestroy(ptr
, &dead_list
);
1021 release_client_state(target_p
);
1022 free_client(target_p
);
1023 rb_dlinkDestroy(ptr
, &dead_remote_list
);
1030 ** Remove all clients that depend on source_p; assumes all (S)QUITs have
1031 ** already been sent. we make sure to exit a server's dependent clients
1032 ** and servers before the server itself; exit_one_client takes care of
1033 ** actually removing things off llists. tweaked from +CSr31 -orabidoo
1036 * added sanity test code.... source_p->serv might be NULL...
1039 recurse_remove_clients(struct Client
*source_p
, const char *comment
)
1041 struct Client
*target_p
;
1042 rb_dlink_node
*ptr
, *ptr_next
;
1047 if(source_p
->serv
== NULL
) /* oooops. uh this is actually a major bug */
1050 /* this is very ugly, but it saves cpu :P */
1051 if(ConfigFileEntry
.nick_delay
> 0)
1053 RB_DLINK_FOREACH_SAFE(ptr
, ptr_next
, source_p
->serv
->users
.head
)
1055 target_p
= ptr
->data
;
1056 target_p
->flags
|= FLAGS_KILLED
;
1057 add_nd_entry(target_p
->name
);
1059 if(!IsDead(target_p
) && !IsClosing(target_p
))
1060 exit_remote_client(NULL
, target_p
, &me
, comment
);
1065 RB_DLINK_FOREACH_SAFE(ptr
, ptr_next
, source_p
->serv
->users
.head
)
1067 target_p
= ptr
->data
;
1068 target_p
->flags
|= FLAGS_KILLED
;
1070 if(!IsDead(target_p
) && !IsClosing(target_p
))
1071 exit_remote_client(NULL
, target_p
, &me
, comment
);
1075 RB_DLINK_FOREACH_SAFE(ptr
, ptr_next
, source_p
->serv
->servers
.head
)
1077 target_p
= ptr
->data
;
1078 recurse_remove_clients(target_p
, comment
);
1079 qs_server(NULL
, target_p
, &me
, comment
);
1084 ** Remove *everything* that depends on source_p, from all lists, and sending
1085 ** all necessary SQUITs. source_p itself is still on the lists,
1086 ** and its SQUITs have been sent except for the upstream one -orabidoo
1089 remove_dependents(struct Client
*client_p
,
1090 struct Client
*source_p
,
1091 struct Client
*from
, const char *comment
, const char *comment1
)
1094 rb_dlink_node
*ptr
, *next
;
1096 RB_DLINK_FOREACH_SAFE(ptr
, next
, serv_list
.head
)
1100 if(IsMe(to
) || to
== source_p
->from
|| to
== client_p
)
1103 sendto_one(to
, "SQUIT %s :%s", get_id(source_p
, to
), comment
);
1106 recurse_remove_clients(source_p
, comment1
);
1110 exit_aborted_clients(void *unused
)
1112 struct abort_client
*abt
;
1113 rb_dlink_node
*ptr
, *next
;
1114 RB_DLINK_FOREACH_SAFE(ptr
, next
, abort_list
.head
)
1118 #ifdef DEBUG_EXITED_CLIENTS
1120 if(rb_dlinkFind(abt
->client
, &dead_list
))
1123 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1124 "On dead_list: %s stat: %u flags: %u/%u handler: %c",
1125 abt
->client
->name
, (unsigned int) abt
->client
->status
,
1126 abt
->client
->flags
, abt
->client
->flags2
, abt
->client
->handler
);
1127 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1128 "Please report this to the charybdis developers!");
1134 s_assert(*((unsigned long*)abt
->client
) != 0xdeadbeef); /* This is lame but its a debug thing */
1135 rb_dlinkDelete(ptr
, &abort_list
);
1137 if(IsAnyServer(abt
->client
))
1138 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1139 "Closing link to %s: %s",
1140 abt
->client
->name
, abt
->notice
);
1142 /* its no longer on abort list - we *must* remove
1143 * FLAGS_CLOSING otherwise exit_client() will not run --fl
1145 abt
->client
->flags
&= ~FLAGS_CLOSING
;
1146 exit_client(abt
->client
, abt
->client
, &me
, abt
->notice
);
1153 * dead_link - Adds client to a list of clients that need an exit_client()
1157 dead_link(struct Client
*client_p
, int sendqex
)
1159 struct abort_client
*abt
;
1161 s_assert(!IsMe(client_p
));
1162 if(IsDead(client_p
) || IsClosing(client_p
) || IsMe(client_p
))
1165 abt
= (struct abort_client
*) rb_malloc(sizeof(struct abort_client
));
1168 rb_strlcpy(abt
->notice
, "Max SendQ exceeded", sizeof(abt
->notice
));
1170 rb_snprintf(abt
->notice
, sizeof(abt
->notice
), "Write error: %s", strerror(errno
));
1172 abt
->client
= client_p
;
1173 SetIOError(client_p
);
1175 SetClosing(client_p
);
1176 rb_dlinkAdd(abt
, &abt
->node
, &abort_list
);
1180 /* This does the remove of the user from channels..local or remote */
1182 exit_generic_client(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1183 const char *comment
)
1185 rb_dlink_node
*ptr
, *next_ptr
;
1187 if(IsOper(source_p
))
1188 rb_dlinkFindDestroy(source_p
, &oper_list
);
1190 sendto_common_channels_local(source_p
, NOCAPS
, ":%s!%s@%s QUIT :%s",
1192 source_p
->username
, source_p
->host
, comment
);
1194 remove_user_from_channels(source_p
);
1196 /* Should not be in any channels now */
1197 s_assert(source_p
->user
->channel
.head
== NULL
);
1199 /* Clean up invitefield */
1200 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, source_p
->user
->invited
.head
)
1202 del_invite(ptr
->data
, source_p
);
1205 /* Clean up allow lists */
1206 del_all_accepts(source_p
);
1208 add_history(source_p
, 0);
1209 off_history(source_p
);
1211 monitor_signoff(source_p
);
1213 if(has_id(source_p
))
1214 del_from_id_hash(source_p
->id
, source_p
);
1216 del_from_hostname_hash(source_p
->orighost
, source_p
);
1217 del_from_client_hash(source_p
->name
, source_p
);
1218 remove_client_from_list(source_p
);
1222 * Assumes IsPerson(source_p) && !MyConnect(source_p)
1226 exit_remote_client(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1227 const char *comment
)
1229 exit_generic_client(client_p
, source_p
, from
, comment
);
1231 if(source_p
->servptr
&& source_p
->servptr
->serv
)
1233 rb_dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->users
);
1236 if((source_p
->flags
& FLAGS_KILLED
) == 0)
1238 sendto_server(client_p
, NULL
, CAP_TS6
, NOCAPS
,
1239 ":%s QUIT :%s", use_id(source_p
), comment
);
1243 #ifdef DEBUG_EXITED_CLIENTS
1244 rb_dlinkAddAlloc(source_p
, &dead_remote_list
);
1246 rb_dlinkAddAlloc(source_p
, &dead_list
);
1248 return(CLIENT_EXITED
);
1252 * This assumes IsUnknown(source_p) == TRUE and MyConnect(source_p) == TRUE
1256 exit_unknown_client(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1257 const char *comment
)
1259 delete_auth_queries(source_p
);
1260 if (source_p
->localClient
->dnsquery
)
1262 delete_resolver_queries(source_p
->localClient
->dnsquery
);
1263 rb_free(source_p
->localClient
->dnsquery
);
1265 rb_dlinkDelete(&source_p
->localClient
->tnode
, &unknown_list
);
1267 if(!IsIOError(source_p
))
1268 sendto_one(source_p
, "ERROR :Closing Link: %s (%s)",
1269 source_p
->user
!= NULL
? source_p
->host
: "127.0.0.1",
1272 close_connection(source_p
);
1274 if(has_id(source_p
))
1275 del_from_id_hash(source_p
->id
, source_p
);
1277 del_from_hostname_hash(source_p
->host
, source_p
);
1278 del_from_client_hash(source_p
->name
, source_p
);
1279 remove_client_from_list(source_p
);
1281 rb_dlinkAddAlloc(source_p
, &dead_list
);
1283 /* Note that we don't need to add unknowns to the dead_list */
1284 return(CLIENT_EXITED
);
1288 exit_remote_server(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1289 const char *comment
)
1291 static char comment1
[(HOSTLEN
*2)+2];
1292 static char newcomment
[BUFSIZE
];
1293 struct Client
*target_p
;
1295 if(ConfigServerHide
.flatten_links
)
1296 strcpy(comment1
, "*.net *.split");
1299 strcpy(comment1
, source_p
->servptr
->name
);
1300 strcat(comment1
, " ");
1301 strcat(comment1
, source_p
->name
);
1304 rb_snprintf(newcomment
, sizeof(newcomment
), "by %s: %s",
1305 from
->name
, comment
);
1307 if(source_p
->serv
!= NULL
)
1308 remove_dependents(client_p
, source_p
, from
, IsPerson(from
) ? newcomment
: comment
, comment1
);
1310 if(source_p
->servptr
&& source_p
->servptr
->serv
)
1311 rb_dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->servers
);
1315 rb_dlinkFindDestroy(source_p
, &global_serv_list
);
1316 target_p
= source_p
->from
;
1318 if(target_p
!= NULL
&& IsServer(target_p
) && target_p
!= client_p
&&
1319 !IsMe(target_p
) && (source_p
->flags
& FLAGS_KILLED
) == 0)
1321 sendto_one(target_p
, ":%s SQUIT %s :%s",
1322 get_id(from
, target_p
), get_id(source_p
, target_p
),
1326 if(has_id(source_p
))
1327 del_from_id_hash(source_p
->id
, source_p
);
1329 del_from_client_hash(source_p
->name
, source_p
);
1330 remove_client_from_list(source_p
);
1331 scache_split(source_p
->serv
->nameinfo
);
1334 #ifdef DEBUG_EXITED_CLIENTS
1335 rb_dlinkAddAlloc(source_p
, &dead_remote_list
);
1337 rb_dlinkAddAlloc(source_p
, &dead_list
);
1343 qs_server(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1344 const char *comment
)
1346 if(source_p
->servptr
&& source_p
->servptr
->serv
)
1347 rb_dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->servers
);
1351 rb_dlinkFindDestroy(source_p
, &global_serv_list
);
1353 if(has_id(source_p
))
1354 del_from_id_hash(source_p
->id
, source_p
);
1356 del_from_client_hash(source_p
->name
, source_p
);
1357 remove_client_from_list(source_p
);
1358 scache_split(source_p
->serv
->nameinfo
);
1361 rb_dlinkAddAlloc(source_p
, &dead_list
);
1366 exit_local_server(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1367 const char *comment
)
1369 static char comment1
[(HOSTLEN
*2)+2];
1370 static char newcomment
[BUFSIZE
];
1371 unsigned int sendk
, recvk
;
1373 rb_dlinkDelete(&source_p
->localClient
->tnode
, &serv_list
);
1374 rb_dlinkFindDestroy(source_p
, &global_serv_list
);
1376 sendk
= source_p
->localClient
->sendK
;
1377 recvk
= source_p
->localClient
->receiveK
;
1379 /* Always show source here, so the server notices show
1380 * which side initiated the split -- jilles
1382 rb_snprintf(newcomment
, sizeof(newcomment
), "by %s: %s",
1383 from
== source_p
? me
.name
: from
->name
, comment
);
1384 if (!IsIOError(source_p
))
1385 sendto_one(source_p
, "SQUIT %s :%s", use_id(source_p
),
1387 if(client_p
!= NULL
&& source_p
!= client_p
&& !IsIOError(source_p
))
1389 sendto_one(source_p
, "ERROR :Closing Link: 127.0.0.1 %s (%s)",
1390 source_p
->name
, comment
);
1393 if(source_p
->servptr
&& source_p
->servptr
->serv
)
1394 rb_dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->servers
);
1399 close_connection(source_p
);
1401 if(ConfigServerHide
.flatten_links
)
1402 strcpy(comment1
, "*.net *.split");
1405 strcpy(comment1
, source_p
->servptr
->name
);
1406 strcat(comment1
, " ");
1407 strcat(comment1
, source_p
->name
);
1410 if(source_p
->serv
!= NULL
)
1411 remove_dependents(client_p
, source_p
, from
, IsPerson(from
) ? newcomment
: comment
, comment1
);
1413 sendto_realops_snomask(SNO_GENERAL
, L_ALL
, "%s was connected"
1414 " for %ld seconds. %d/%d sendK/recvK.",
1415 source_p
->name
, (long) rb_current_time() - source_p
->localClient
->firsttime
, sendk
, recvk
);
1417 ilog(L_SERVER
, "%s was connected for %ld seconds. %d/%d sendK/recvK.",
1418 source_p
->name
, (long) rb_current_time() - source_p
->localClient
->firsttime
, sendk
, recvk
);
1420 if(has_id(source_p
))
1421 del_from_id_hash(source_p
->id
, source_p
);
1423 del_from_client_hash(source_p
->name
, source_p
);
1424 remove_client_from_list(source_p
);
1425 scache_split(source_p
->serv
->nameinfo
);
1428 rb_dlinkAddAlloc(source_p
, &dead_list
);
1434 * This assumes IsPerson(source_p) == TRUE && MyConnect(source_p) == TRUE
1438 exit_local_client(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1439 const char *comment
)
1441 unsigned long on_for
;
1444 exit_generic_client(client_p
, source_p
, from
, comment
);
1445 clear_monitor(source_p
);
1447 s_assert(IsPerson(source_p
));
1448 rb_dlinkDelete(&source_p
->localClient
->tnode
, &lclient_list
);
1449 rb_dlinkDelete(&source_p
->lnode
, &me
.serv
->users
);
1451 if(IsOper(source_p
))
1452 rb_dlinkFindDestroy(source_p
, &local_oper_list
);
1454 sendto_realops_snomask(SNO_CCONN
, L_ALL
,
1455 "Client exiting: %s (%s@%s) [%s] [%s]",
1457 source_p
->username
, source_p
->host
, comment
,
1458 show_ip(NULL
, source_p
) ? source_p
->sockhost
: "255.255.255.255");
1460 sendto_realops_snomask(SNO_CCONNEXT
, L_ALL
,
1461 "CLIEXIT %s %s %s %s 0 %s",
1462 source_p
->name
, source_p
->username
, source_p
->host
,
1463 show_ip(NULL
, source_p
) ? source_p
->sockhost
: "255.255.255.255",
1466 on_for
= rb_current_time() - source_p
->localClient
->firsttime
;
1468 ilog(L_USER
, "%s (%3lu:%02lu:%02lu): %s!%s@%s %s %d/%d",
1469 rb_ctime(rb_current_time(), tbuf
, sizeof(tbuf
)), on_for
/ 3600,
1470 (on_for
% 3600) / 60, on_for
% 60,
1471 source_p
->name
, source_p
->username
, source_p
->host
,
1473 source_p
->localClient
->sendK
, source_p
->localClient
->receiveK
);
1475 sendto_one(source_p
, "ERROR :Closing Link: %s (%s)", source_p
->host
, comment
);
1476 close_connection(source_p
);
1478 if((source_p
->flags
& FLAGS_KILLED
) == 0)
1480 sendto_server(client_p
, NULL
, CAP_TS6
, NOCAPS
,
1481 ":%s QUIT :%s", use_id(source_p
), comment
);
1485 rb_dlinkAddAlloc(source_p
, &dead_list
);
1486 return(CLIENT_EXITED
);
1491 ** exit_client - This is old "m_bye". Name changed, because this is not a
1492 ** protocol function, but a general server utility function.
1494 ** This function exits a client of *any* type (user, server, etc)
1495 ** from this server. Also, this generates all necessary prototol
1496 ** messages that this exit may cause.
1498 ** 1) If the client is a local client, then this implicitly
1499 ** exits all other clients depending on this connection (e.g.
1500 ** remote clients having 'from'-field that points to this.
1502 ** 2) If the client is a remote client, then only this is exited.
1504 ** For convenience, this function returns a suitable value for
1505 ** m_function return value:
1507 ** CLIENT_EXITED if (client_p == source_p)
1508 ** 0 if (client_p != source_p)
1511 exit_client(struct Client
*client_p
, /* The local client originating the
1512 * exit or NULL, if this exit is
1513 * generated by this server for
1515 * This will not get any of the
1516 * generated messages. */
1517 struct Client
*source_p
, /* Client exiting */
1518 struct Client
*from
, /* Client firing off this Exit,
1520 const char *comment
/* Reason for the exit */
1523 hook_data_client_exit hdata
;
1524 if(IsClosing(source_p
))
1527 /* note, this HAS to be here, when we exit a client we attempt to
1528 * send them data, if this generates a write error we must *not* add
1529 * them to the abort list --fl
1531 SetClosing(source_p
);
1533 hdata
.local_link
= client_p
;
1534 hdata
.target
= source_p
;
1536 hdata
.comment
= comment
;
1537 call_hook(h_client_exit
, &hdata
);
1539 if(MyConnect(source_p
))
1541 /* Local clients of various types */
1542 if(IsPerson(source_p
))
1543 return exit_local_client(client_p
, source_p
, from
, comment
);
1544 else if(IsServer(source_p
))
1545 return exit_local_server(client_p
, source_p
, from
, comment
);
1546 /* IsUnknown || IsConnecting || IsHandShake */
1547 else if(!IsReject(source_p
))
1548 return exit_unknown_client(client_p
, source_p
, from
, comment
);
1553 if(IsPerson(source_p
))
1554 return exit_remote_client(client_p
, source_p
, from
, comment
);
1555 else if(IsServer(source_p
))
1556 return exit_remote_server(client_p
, source_p
, from
, comment
);
1563 * Count up local client memory
1566 /* XXX one common Client list now */
1568 count_local_client_memory(size_t * count
, size_t * local_client_memory_used
)
1571 rb_bh_usage(lclient_heap
, count
, NULL
, &lusage
, NULL
);
1572 *local_client_memory_used
= lusage
+ (*count
* (sizeof(void *) + sizeof(struct Client
)));
1576 * Count up remote client memory
1579 count_remote_client_memory(size_t * count
, size_t * remote_client_memory_used
)
1581 size_t lcount
, rcount
;
1582 rb_bh_usage(lclient_heap
, &lcount
, NULL
, NULL
, NULL
);
1583 rb_bh_usage(client_heap
, &rcount
, NULL
, NULL
, NULL
);
1584 *count
= rcount
- lcount
;
1585 *remote_client_memory_used
= *count
* (sizeof(void *) + sizeof(struct Client
));
1590 * accept processing, this adds a form of "caller ID" to ircd
1592 * If a client puts themselves into "caller ID only" mode,
1593 * only clients that match a client pointer they have put on
1594 * the accept list will be allowed to message them.
1596 * [ source.on_allow_list ] -> [ target1 ] -> [ target2 ]
1598 * [target.allow_list] -> [ source1 ] -> [source2 ]
1600 * i.e. a target will have a link list of source pointers it will allow
1601 * each source client then has a back pointer pointing back
1602 * to the client that has it on its accept list.
1603 * This allows for exit_one_client to remove these now bogus entries
1604 * from any client having an accept on them.
1609 * inputs - pointer to exiting client
1611 * side effects - Walk through given clients allow_list and on_allow_list
1612 * remove all references to this client
1615 del_all_accepts(struct Client
*client_p
)
1618 rb_dlink_node
*next_ptr
;
1619 struct Client
*target_p
;
1621 if(MyClient(client_p
) && client_p
->localClient
->allow_list
.head
)
1623 /* clear this clients accept list, and remove them from
1624 * everyones on_accept_list
1626 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, client_p
->localClient
->allow_list
.head
)
1628 target_p
= ptr
->data
;
1629 rb_dlinkFindDestroy(client_p
, &target_p
->on_allow_list
);
1630 rb_dlinkDestroy(ptr
, &client_p
->localClient
->allow_list
);
1634 /* remove this client from everyones accept list */
1635 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, client_p
->on_allow_list
.head
)
1637 target_p
= ptr
->data
;
1638 rb_dlinkFindDestroy(client_p
, &target_p
->localClient
->allow_list
);
1639 rb_dlinkDestroy(ptr
, &client_p
->on_allow_list
);
1644 * show_ip() - asks if the true IP should be shown when source is
1645 * asking for info about target
1647 * Inputs - source_p who is asking
1648 * - target_p who do we want the info on
1649 * Output - returns 1 if clear IP can be shown, otherwise 0
1650 * Side Effects - none
1654 show_ip(struct Client
*source_p
, struct Client
*target_p
)
1656 if(IsAnyServer(target_p
))
1660 else if(IsIPSpoof(target_p
))
1662 /* source == NULL indicates message is being sent
1665 if(!ConfigFileEntry
.hide_spoof_ips
&&
1666 (source_p
== NULL
|| MyOper(source_p
)))
1670 else if(IsDynSpoof(target_p
) && (source_p
!= NULL
&& !IsOper(source_p
)))
1677 show_ip_conf(struct ConfItem
*aconf
, struct Client
*source_p
)
1679 if(IsConfDoSpoofIp(aconf
))
1681 if(!ConfigFileEntry
.hide_spoof_ips
&& MyOper(source_p
))
1693 * inputs - pointer to client struct
1694 * output - pointer to struct User
1695 * side effects - add's an User information block to a client
1696 * if it was not previously allocated.
1699 make_user(struct Client
*client_p
)
1703 user
= client_p
->user
;
1706 user
= (struct User
*) rb_bh_alloc(user_heap
);
1708 client_p
->user
= user
;
1716 * inputs - pointer to client struct
1717 * output - pointer to server_t
1718 * side effects - add's an Server information block to a client
1719 * if it was not previously allocated.
1722 make_server(struct Client
*client_p
)
1724 struct Server
*serv
= client_p
->serv
;
1728 serv
= (struct Server
*) rb_malloc(sizeof(struct Server
));
1729 client_p
->serv
= serv
;
1731 return client_p
->serv
;
1737 * inputs - pointer to user struct
1738 * - pointer to client struct
1740 * side effects - Decrease user reference count by one and release block,
1741 * if count reaches 0
1744 free_user(struct User
*user
, struct Client
*client_p
)
1746 free_away(client_p
);
1748 if(--user
->refcnt
<= 0)
1751 rb_free((char *) user
->away
);
1755 if(user
->refcnt
< 0 || user
->invited
.head
|| user
->channel
.head
)
1757 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1758 "* %#lx user (%s!%s@%s) %#lx %#lx %#lx %lu %d *",
1759 (unsigned long) client_p
,
1760 client_p
? client_p
->
1764 (unsigned long) user
,
1765 (unsigned long) user
->invited
.head
,
1766 (unsigned long) user
->channel
.head
,
1767 rb_dlink_list_length(&user
->channel
),
1769 s_assert(!user
->refcnt
);
1770 s_assert(!user
->invited
.head
);
1771 s_assert(!user
->channel
.head
);
1774 rb_bh_free(user_heap
, user
);
1779 allocate_away(struct Client
*client_p
)
1781 if(client_p
->user
->away
== NULL
)
1782 client_p
->user
->away
= rb_bh_alloc(away_heap
);
1787 free_away(struct Client
*client_p
)
1789 if(client_p
->user
!= NULL
&& client_p
->user
->away
!= NULL
) {
1790 rb_bh_free(away_heap
, client_p
->user
->away
);
1791 client_p
->user
->away
= NULL
;
1800 for(i
= 0; i
< 3; i
++)
1801 current_uid
[i
] = me
.id
[i
];
1803 for(i
= 3; i
< 9; i
++)
1804 current_uid
[i
] = 'A';
1806 current_uid
[9] = '\0';
1815 for(i
= 8; i
> 3; i
--)
1817 if(current_uid
[i
] == 'Z')
1819 current_uid
[i
] = '0';
1822 else if(current_uid
[i
] != '9')
1828 current_uid
[i
] = 'A';
1831 /* if this next if() triggers, we're fucked. */
1832 if(current_uid
[3] == 'Z')
1834 current_uid
[i
] = 'A';
1845 * Close the physical connection. This function must make
1846 * MyConnect(client_p) == FALSE, and set client_p->from == NULL.
1849 close_connection(struct Client
*client_p
)
1851 s_assert(client_p
!= NULL
);
1852 if(client_p
== NULL
)
1855 s_assert(MyConnect(client_p
));
1856 if(!MyConnect(client_p
))
1859 if(IsServer(client_p
))
1861 struct server_conf
*server_p
;
1863 ServerStats
.is_sv
++;
1864 ServerStats
.is_sbs
+= client_p
->localClient
->sendB
;
1865 ServerStats
.is_sbr
+= client_p
->localClient
->receiveB
;
1866 ServerStats
.is_sti
+= (unsigned long long)(rb_current_time() - client_p
->localClient
->firsttime
);
1869 * If the connection has been up for a long amount of time, schedule
1870 * a 'quick' reconnect, else reset the next-connect cycle.
1872 if((server_p
= find_server_conf(client_p
->name
)) != NULL
)
1875 * Reschedule a faster reconnect, if this was a automatically
1876 * connected configuration entry. (Note that if we have had
1877 * a rehash in between, the status has been changed to
1878 * CONF_ILLEGAL). But only do this if it was a "good" link.
1880 server_p
->hold
= time(NULL
);
1882 (server_p
->hold
- client_p
->localClient
->lasttime
>
1883 HANGONGOODLINK
) ? HANGONRETRYDELAY
: ConFreq(server_p
->class);
1887 else if(IsClient(client_p
))
1889 ServerStats
.is_cl
++;
1890 ServerStats
.is_cbs
+= client_p
->localClient
->sendB
;
1891 ServerStats
.is_cbr
+= client_p
->localClient
->receiveB
;
1892 ServerStats
.is_cti
+= (unsigned long long)(rb_current_time() - client_p
->localClient
->firsttime
);
1895 ServerStats
.is_ni
++;
1897 if(client_p
->localClient
->F
!= NULL
)
1899 /* attempt to flush any pending dbufs. Evil, but .. -- adrian */
1900 if(!IsIOError(client_p
))
1901 send_queued(client_p
);
1903 del_from_cli_fd_hash(client_p
);
1904 rb_close(client_p
->localClient
->F
);
1905 client_p
->localClient
->F
= NULL
;
1908 rb_linebuf_donebuf(&client_p
->localClient
->buf_sendq
);
1909 rb_linebuf_donebuf(&client_p
->localClient
->buf_recvq
);
1910 detach_conf(client_p
);
1912 /* XXX shouldnt really be done here. */
1913 detach_server_conf(client_p
);
1915 client_p
->from
= NULL
; /* ...this should catch them! >:) --msa */
1916 ClearMyConnect(client_p
);
1917 SetIOError(client_p
);
1923 error_exit_client(struct Client
*client_p
, int error
)
1926 * ...hmm, with non-blocking sockets we might get
1927 * here from quite valid reasons, although.. why
1928 * would select report "data available" when there
1929 * wasn't... so, this must be an error anyway... --msa
1930 * actually, EOF occurs when read() returns 0 and
1931 * in due course, select() returns that fd as ready
1932 * for reading even though it ends up being an EOF. -avalon
1935 int current_error
= rb_get_sockerr(client_p
->localClient
->F
);
1937 SetIOError(client_p
);
1939 if(IsServer(client_p
) || IsHandshake(client_p
))
1943 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) && !IsServer(client_p
) ? L_NETWIDE
: L_ALL
,
1944 "Server %s closed the connection",
1947 ilog(L_SERVER
, "Server %s closed the connection",
1948 log_client_name(client_p
, SHOW_IP
));
1952 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) && !IsServer(client_p
) ? L_NETWIDE
: L_ALL
,
1953 "Lost connection to %s: %s",
1954 client_p
->name
, strerror(current_error
));
1955 ilog(L_SERVER
, "Lost connection to %s: %s",
1956 log_client_name(client_p
, SHOW_IP
), strerror(current_error
));
1961 rb_strlcpy(errmsg
, "Remote host closed the connection", sizeof(errmsg
));
1963 rb_snprintf(errmsg
, sizeof(errmsg
), "Read error: %s", strerror(current_error
));
1965 exit_client(client_p
, client_p
, &me
, errmsg
);