5 Author: Pekka Riikonen <priikone@silcnet.org>
7 Copyright (C) 2001 - 2006 Pekka Riikonen
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; version 2 of the License.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
22 #include "silcclient.h"
23 #include "client_internal.h"
25 /************************ Client Searching Locally **************************/
27 /* Finds entry for client by the client's ID. Returns the entry or NULL
28 if the entry was not found. */
30 SilcClientEntry silc_client_get_client_by_id(SilcClient client,
31 SilcClientConnection conn,
32 SilcClientID *client_id)
34 SilcIDCacheEntry id_cache;
35 SilcClientEntry client_entry;
37 if (!client || !conn || !client_id)
40 SILC_LOG_DEBUG(("Finding client by ID (%s)",
41 silc_id_render(client_id, SILC_ID_CLIENT)));
43 silc_mutex_lock(conn->internal->lock);
45 /* Find ID from cache */
46 if (!silc_idcache_find_by_id_one(conn->internal->client_cache, client_id,
48 silc_mutex_unlock(conn->internal->lock);
52 client_entry = id_cache->context;
55 silc_client_ref_client(client, conn, client_entry);
56 silc_mutex_unlock(conn->internal->lock);
58 SILC_LOG_DEBUG(("Found"));
63 /* Finds clients by nickname from local cache. */
65 SilcDList silc_client_get_clients_local(SilcClient client,
66 SilcClientConnection conn,
70 SilcIDCacheEntry id_cache;
73 SilcClientEntry entry;
76 if (!client || !conn || !nickname)
79 SILC_LOG_DEBUG(("Find clients by nickname %s", nickname));
81 /* Normalize nickname for search */
82 nicknamec = silc_identifier_check(nickname, strlen(nickname),
83 SILC_STRING_UTF8, 128, NULL);
87 clients = silc_dlist_init();
93 silc_mutex_lock(conn->internal->lock);
96 silc_list_init(list, struct SilcIDCacheEntryStruct, next);
97 if (!silc_idcache_find_by_name(conn->internal->client_cache, nicknamec,
99 silc_mutex_unlock(conn->internal->lock);
100 silc_free(nicknamec);
101 silc_dlist_uninit(clients);
106 /* Take all without any further checking */
107 silc_list_start(list);
108 while ((id_cache = silc_list_get(list))) {
109 silc_client_ref_client(client, conn, id_cache->context);
110 silc_dlist_add(clients, id_cache->context);
113 /* Check multiple cache entries for exact match */
114 silc_list_start(list);
115 while ((id_cache = silc_list_get(list))) {
116 entry = id_cache->context;
117 if (silc_utf8_strcasecmp(entry->nickname, format)) {
118 silc_client_ref_client(client, conn, entry);
119 silc_dlist_add(clients, entry);
124 silc_mutex_unlock(conn->internal->lock);
126 silc_dlist_start(clients);
128 silc_free(nicknamec);
132 /********************** Client Resolving from Server ************************/
134 /* Resolving context */
137 SilcGetClientCallback completion;
139 } *SilcClientGetClientInternal;
141 /* Resolving command callback */
143 static SilcBool silc_client_get_clients_cb(SilcClient client,
144 SilcClientConnection conn,
151 SilcClientGetClientInternal i = context;
152 SilcClientEntry client_entry;
154 if (error != SILC_STATUS_OK) {
155 SILC_LOG_DEBUG(("Resolving failed: %s", silc_get_status_message(error)));
157 i->completion(client, conn, error, NULL, i->context);
161 /* Add the returned client to list */
163 client_entry = va_arg(ap, SilcClientEntry);
164 silc_client_ref_client(client, conn, client_entry);
165 silc_dlist_add(i->clients, client_entry);
166 client_entry->internal.resolve_cmd_ident = 0;
169 if (status == SILC_STATUS_OK || status == SILC_STATUS_LIST_END) {
170 /* Deliver the clients to the caller */
172 SILC_LOG_DEBUG(("Resolved %d clients", silc_dlist_count(i->clients)));
173 silc_dlist_start(i->clients);
174 i->completion(client, conn, SILC_STATUS_OK, i->clients, i->context);
182 silc_client_list_free(client, conn, i->clients);
187 /* Resolves client information from server by the client ID. */
190 silc_client_get_client_by_id_resolve(SilcClient client,
191 SilcClientConnection conn,
192 SilcClientID *client_id,
193 SilcBuffer attributes,
194 SilcGetClientCallback completion,
197 SilcClientGetClientInternal i;
198 SilcClientEntry client_entry;
200 SilcUInt16 cmd_ident;
202 if (!client || !conn | !client_id)
205 SILC_LOG_DEBUG(("Resolve client by ID (%s)",
206 silc_id_render(client_id, SILC_ID_CLIENT)));
208 i = silc_calloc(1, sizeof(*i));
211 i->completion = completion;
212 i->context = context;
213 i->clients = silc_dlist_init();
219 /* Attach to resolving, if on going */
220 client_entry = silc_client_get_client_by_id(client, conn, client_id);
221 if (client_entry && client_entry->internal.resolve_cmd_ident) {
222 SILC_LOG_DEBUG(("Attach to existing resolving"));
223 silc_client_unref_client(client, conn, client_entry);
224 silc_client_command_pending(conn, SILC_COMMAND_NONE,
225 client_entry->internal.resolve_cmd_ident,
226 silc_client_get_clients_cb, i);
227 return client_entry->internal.resolve_cmd_ident;
230 /* Send the command */
231 idp = silc_id_payload_encode(client_id, SILC_ID_CLIENT);
232 cmd_ident = silc_client_command_send(client, conn, SILC_COMMAND_WHOIS,
233 silc_client_get_clients_cb, i,
234 2, 3, silc_buffer_datalen(attributes),
235 4, silc_buffer_datalen(idp));
236 if (!cmd_ident && completion)
237 completion(client, conn, SILC_STATUS_ERR_RESOURCE_LIMIT, NULL, context);
239 if (client_entry && cmd_ident)
240 client_entry->internal.resolve_cmd_ident = cmd_ident;
242 silc_client_unref_client(client, conn, client_entry);
243 silc_buffer_free(idp);
248 /* Finds client entry or entries by the `nickname' and `server'. The
249 completion callback will be called when the client entries has been
250 found. Used internally by the library. */
252 static SilcUInt16 silc_client_get_clients_i(SilcClient client,
253 SilcClientConnection conn,
255 const char *nickname,
257 SilcBuffer attributes,
258 SilcGetClientCallback completion,
261 SilcClientGetClientInternal i;
262 char userhost[768 + 1];
265 SILC_LOG_DEBUG(("Resolve client by %s command",
266 silc_get_command_name(command)));
268 if (!client || !conn)
270 if (!nickname && !attributes)
273 i = silc_calloc(1, sizeof(*i));
276 i->clients = silc_dlist_init();
281 i->completion = completion;
282 i->context = context;
284 memset(userhost, 0, sizeof(userhost));
285 if (nickname && server) {
286 len = strlen(nickname) + strlen(server) + 3;
287 silc_strncat(userhost, len, nickname, strlen(nickname));
288 silc_strncat(userhost, len, "@", 1);
289 silc_strncat(userhost, len, server, strlen(server));
290 } else if (nickname) {
291 silc_strncat(userhost, sizeof(userhost) - 1, nickname, strlen(nickname));
294 /* Send the command */
295 if (command == SILC_COMMAND_IDENTIFY)
296 return silc_client_command_send(client, conn, SILC_COMMAND_IDENTIFY,
297 silc_client_get_clients_cb, i,
298 1, 1, userhost, strlen(userhost));
299 return silc_client_command_send(client, conn, SILC_COMMAND_WHOIS,
300 silc_client_get_clients_cb, i,
301 2, 1, userhost, strlen(userhost),
302 3, silc_buffer_datalen(attributes));
305 /* Get clients from server with IDENTIFY command */
307 SilcUInt16 silc_client_get_clients(SilcClient client,
308 SilcClientConnection conn,
309 const char *nickname,
311 SilcGetClientCallback completion,
314 return silc_client_get_clients_i(client, conn, SILC_COMMAND_IDENTIFY,
315 nickname, server, NULL,
316 completion, context);
319 /* Get clients from server with WHOIS command */
321 SilcUInt16 silc_client_get_clients_whois(SilcClient client,
322 SilcClientConnection conn,
323 const char *nickname,
325 SilcBuffer attributes,
326 SilcGetClientCallback completion,
329 return silc_client_get_clients_i(client, conn, SILC_COMMAND_WHOIS,
330 nickname, server, attributes,
331 completion, context);
334 /* ID list resolving context */
336 SilcGetClientCallback completion;
338 SilcBuffer client_id_list;
339 SilcUInt32 list_count;
340 } *GetClientsByListInternal;
342 static SilcBool silc_client_get_clients_list_cb(SilcClient client,
343 SilcClientConnection conn,
350 GetClientsByListInternal i = context;
351 SilcClientEntry client_entry;
357 /* Process the list after all replies have been received */
358 if (status != SILC_STATUS_OK && !SILC_STATUS_IS_ERROR(status) &&
359 status != SILC_STATUS_LIST_END)
362 SILC_LOG_DEBUG(("Resolved all clients"));
364 clients = silc_dlist_init();
366 status = SILC_STATUS_ERR_RESOURCE_LIMIT;
370 for (c = 0; c < i->list_count; c++) {
372 SILC_GET16_MSB(idp_len, i->client_id_list->data + 2);
374 if (!silc_id_payload_parse_id(i->client_id_list->data, idp_len, &id)) {
375 status = SILC_STATUS_ERR_BAD_CLIENT_ID;
379 /* Get client entry */
380 client_entry = silc_client_get_client_by_id(client, conn, &id.u.client_id);
382 silc_dlist_add(clients, client_entry);
384 if (!silc_buffer_pull(i->client_id_list, idp_len)) {
385 status = SILC_STATUS_ERR_BAD_CLIENT_ID;
390 silc_dlist_start(clients);
391 status = SILC_STATUS_OK;
393 i->completion(client, conn, status, clients, i->context);
396 if (status != SILC_STATUS_OK && i->completion)
397 i->completion(client, conn, status, NULL, i->context);
399 silc_client_list_free(client, conn, clients);
400 silc_buffer_free(i->client_id_list);
406 /* Gets client entries by the list of client ID's `client_id_list'. This
407 always resolves those client ID's it does not know yet from the server
408 so this function might take a while. The `client_id_list' is a list
409 of ID Payloads added one after other. JOIN command reply and USERS
410 command reply for example returns this sort of list. The `completion'
411 will be called after the entries are available. */
413 SilcUInt16 silc_client_get_clients_by_list(SilcClient client,
414 SilcClientConnection conn,
415 SilcUInt32 list_count,
416 SilcBuffer client_id_list,
417 SilcGetClientCallback completion,
420 GetClientsByListInternal in;
421 SilcClientEntry entry;
422 unsigned char **res_argv = NULL;
423 SilcUInt32 *res_argv_lens = NULL, *res_argv_types = NULL, res_argc = 0;
424 SilcUInt16 idp_len, cmd_ident;
428 SILC_LOG_DEBUG(("Resolve clients from Client ID list"));
430 if (!client || !conn || !client_id_list)
433 in = silc_calloc(1, sizeof(*in));
436 in->completion = completion;
437 in->context = context;
438 in->list_count = list_count;
439 in->client_id_list = silc_buffer_copy(client_id_list);
440 if (!in->client_id_list)
443 for (i = 0; i < list_count; i++) {
445 SILC_GET16_MSB(idp_len, client_id_list->data + 2);
447 if (!silc_id_payload_parse_id(client_id_list->data, idp_len, &id))
450 /* Check if we have this client cached already. If we don't have the
451 entry or it has incomplete info, then resolve it from the server. */
452 entry = silc_client_get_client_by_id(client, conn, &id.u.client_id);
453 if (!entry || !entry->nickname[0] || !entry->username[0] ||
456 res_argv = silc_calloc(list_count, sizeof(*res_argv));
457 res_argv_lens = silc_calloc(list_count, sizeof(*res_argv_lens));
458 res_argv_types = silc_calloc(list_count, sizeof(*res_argv_types));
459 if (!res_argv || !res_argv_lens || !res_argv_types) {
460 silc_client_unref_client(client, conn, entry);
465 res_argv[res_argc] = client_id_list->data;
466 res_argv_lens[res_argc] = idp_len;
467 res_argv_types[res_argc] = res_argc + 4;
470 silc_client_unref_client(client, conn, entry);
472 if (!silc_buffer_pull(client_id_list, idp_len))
475 silc_buffer_start(client_id_list);
477 /* Query the unknown client information from server */
479 cmd_ident = silc_client_command_send_argv(client,
480 conn, SILC_COMMAND_WHOIS,
481 silc_client_get_clients_list_cb,
482 in, res_argc, res_argv,
486 silc_free(res_argv_lens);
487 silc_free(res_argv_types);
491 /* We have the clients in cache, get them and call the completion */
492 silc_client_get_clients_list_cb(client, conn, SILC_COMMAND_WHOIS,
493 SILC_STATUS_OK, SILC_STATUS_OK, in, NULL);
497 silc_buffer_free(in->client_id_list);
500 silc_free(res_argv_lens);
501 silc_free(res_argv_types);
508 SilcClientConnection conn;
509 SilcChannelID channel_id;
510 SilcGetClientCallback completion;
513 } *GetClientsByChannelInternal;
515 SILC_CLIENT_CMD_FUNC(get_clients_by_channel_cb)
517 GetClientsByChannelInternal i = context;
518 SilcClientEntry *clients = NULL;
519 SilcUInt32 clients_count = 0;
520 SilcBool found = FALSE;
521 SilcChannelEntry channel;
522 SilcHashTableList htl;
531 channel = silc_client_get_channel_by_id(i->client, i->conn, &i->channel_id);
532 if (channel && !silc_hash_table_count(channel->user_list)) {
533 clients = silc_calloc(silc_hash_table_count(channel->user_list),
535 silc_hash_table_list(channel->user_list, &htl);
536 while (silc_hash_table_get(&htl, NULL, (void *)&chu))
537 clients[clients_count++] = chu->client;
538 silc_hash_table_list_reset(&htl);
543 i->completion(i->client, i->conn, clients, clients_count, i->context);
546 i->completion(i->client, i->conn, NULL, 0, i->context);
552 /* Gets client entries by the channel entry indicated by `channel'. Thus,
553 it resolves the clients currently on that channel. */
555 void silc_client_get_clients_by_channel(SilcClient client,
556 SilcClientConnection conn,
557 SilcChannelEntry channel,
558 SilcGetClientCallback completion,
561 GetClientsByChannelInternal in;
562 SilcHashTableList htl;
564 SilcClientEntry entry;
565 unsigned char **res_argv = NULL;
566 SilcUInt32 *res_argv_lens = NULL, *res_argv_types = NULL, res_argc = 0;
568 SilcBool wait_res = FALSE;
570 assert(client && conn && channel);
572 SILC_LOG_DEBUG(("Start"));
574 in = silc_calloc(1, sizeof(*in));
577 in->channel_id = *channel->id;
578 in->completion = completion;
579 in->context = context;
581 /* If user list does not exist, send USERS command. */
582 if (!channel->user_list || !silc_hash_table_count(channel->user_list)) {
583 SILC_LOG_DEBUG(("Sending USERS"));
584 silc_client_command_register(client, SILC_COMMAND_USERS, NULL, NULL,
585 silc_client_command_reply_users_i, 0,
587 silc_client_command_send(client, conn, SILC_COMMAND_USERS,
588 conn->cmd_ident, 1, 2, channel->channel_name,
589 strlen(channel->channel_name));
590 silc_client_command_pending(conn, SILC_COMMAND_USERS, conn->cmd_ident,
591 silc_client_command_get_clients_by_channel_cb,
596 silc_hash_table_list(channel->user_list, &htl);
597 while (silc_hash_table_get(&htl, NULL, (void *)&chu)) {
600 /* If the entry has incomplete info, then resolve it from the server. */
601 if (!entry->nickname[0] || !entry->realname) {
602 if (entry->status & SILC_CLIENT_STATUS_RESOLVING) {
603 /* Attach to this resolving and wait until it finishes */
604 silc_client_command_pending(
605 conn, SILC_COMMAND_NONE,
606 entry->resolve_cmd_ident,
607 silc_client_command_get_clients_by_channel_cb,
613 entry->status |= SILC_CLIENT_STATUS_RESOLVING;
614 entry->resolve_cmd_ident = conn->cmd_ident + 1;
616 idp = silc_id_payload_encode(entry->id, SILC_ID_CLIENT);
618 /* No we don't have it, query it from the server. Assemble argument
619 table that will be sent for the WHOIS command later. */
620 res_argv = silc_realloc(res_argv, sizeof(*res_argv) *
622 res_argv_lens = silc_realloc(res_argv_lens, sizeof(*res_argv_lens) *
624 res_argv_types = silc_realloc(res_argv_types, sizeof(*res_argv_types) *
626 res_argv[res_argc] = silc_memdup(idp->data, idp->len);
627 res_argv_lens[res_argc] = idp->len;
628 res_argv_types[res_argc] = res_argc + 4;
631 silc_buffer_free(idp);
634 silc_hash_table_list_reset(&htl);
636 /* Query the client information from server if the list included clients
637 that we don't know about. */
641 /* Send the WHOIS command to server */
642 res_cmd = silc_command_payload_encode(SILC_COMMAND_WHOIS,
643 res_argc, res_argv, res_argv_lens,
644 res_argv_types, ++conn->cmd_ident);
645 silc_client_packet_send(client, conn->sock, SILC_PACKET_COMMAND,
646 NULL, 0, NULL, NULL, res_cmd->data, res_cmd->len,
649 /* Register our own command reply for this command */
650 silc_client_command_register(client, SILC_COMMAND_WHOIS, NULL, NULL,
651 silc_client_command_reply_whois_i, 0,
654 /* Process the applications request after reply has been received */
655 silc_client_command_pending(
656 conn, SILC_COMMAND_WHOIS, conn->cmd_ident,
657 silc_client_command_get_clients_by_channel_cb,
661 silc_buffer_free(res_cmd);
663 silc_free(res_argv_lens);
664 silc_free(res_argv_types);
671 /* We have the clients in cache, get them and call the completion */
672 silc_client_command_get_clients_by_channel_cb((void *)in, NULL);
677 /************************** Client Entry Routines ***************************/
679 /* Creates new client entry and adds it to the ID cache. Returns pointer
682 SilcClientEntry silc_client_add_client(SilcClient client,
683 SilcClientConnection conn,
684 char *nickname, char *username,
685 char *userinfo, SilcClientID *id,
688 SilcClientEntry client_entry;
691 SILC_LOG_DEBUG(("Adding new client entry"));
693 /* Save the client infos */
694 client_entry = silc_calloc(1, sizeof(*client_entry));
698 silc_atomic_init8(&client_entry->internal.refcnt, 0);
699 client_entry->id = *id;
700 client_entry->internal.valid = TRUE;
701 client_entry->mode = mode;
702 client_entry->realname = userinfo ? strdup(userinfo) : NULL;
703 silc_parse_userfqdn(nickname, client_entry->nickname,
704 sizeof(client_entry->nickname),
705 client_entry->server,
706 sizeof(client_entry->server));
707 silc_parse_userfqdn(username, client_entry->username,
708 sizeof(client_entry->username),
709 client_entry->hostname,
710 sizeof(client_entry->hostname));
711 client_entry->channels = silc_hash_table_alloc(1, silc_hash_ptr, NULL, NULL,
712 NULL, NULL, NULL, TRUE);
713 if (!client_entry->channels) {
714 silc_free(client_entry->realname);
715 silc_free(client_entry);
719 /* Normalize nickname */
720 if (client_entry->nickname[0]) {
721 nick = silc_identifier_check(client_entry->nickname,
722 strlen(client_entry->nickname),
723 SILC_STRING_UTF8, 128, NULL);
725 silc_free(client_entry->realname);
726 silc_hash_table_free(client_entry->channels);
727 silc_free(client_entry);
732 /* Format the nickname */
733 silc_client_nickname_format(client, conn, client_entry);
735 silc_mutex_lock(conn->internal->lock);
737 /* Add client to cache, the normalized nickname is saved to cache */
738 if (!silc_idcache_add(conn->internal->client_cache, nick,
739 &client_entry->id, client_entry)) {
741 silc_free(client_entry->realname);
742 silc_hash_table_free(client_entry->channels);
743 silc_free(client_entry);
744 silc_mutex_unlock(conn->internal->lock);
748 client_entry->nickname_normalized = nick;
750 silc_mutex_unlock(conn->internal->lock);
751 silc_client_ref_client(client, conn, client_entry);
753 SILC_LOG_DEBUG(("Added"));
758 /* Updates the `client_entry' with the new information sent as argument. */
760 void silc_client_update_client(SilcClient client,
761 SilcClientConnection conn,
762 SilcClientEntry client_entry,
763 const char *nickname,
764 const char *username,
765 const char *userinfo,
770 SILC_LOG_DEBUG(("Update client entry"));
772 if (!client_entry->realname && userinfo)
773 client_entry->realname = strdup(userinfo);
774 if ((!client_entry->username[0] || !client_entry->hostname[0]) && username)
775 silc_parse_userfqdn(username, client_entry->username,
776 sizeof(client_entry->username),
777 client_entry->hostname,
778 sizeof(client_entry->username));
779 if (!client_entry->nickname[0] && nickname) {
780 silc_parse_userfqdn(nickname, client_entry->nickname,
781 sizeof(client_entry->nickname),
782 client_entry->server,
783 sizeof(client_entry->server));
785 /* Normalize nickname */
786 nick = silc_identifier_check(client_entry->nickname,
787 strlen(client_entry->nickname),
788 SILC_STRING_UTF8, 128, NULL);
792 /* Format nickname */
793 silc_client_nickname_format(client, conn, client_entry);
795 /* Update cache entry */
796 silc_mutex_lock(conn->internal->lock);
797 silc_idcache_update_by_context(conn->internal->client_cache,
798 client_entry, NULL, nick, TRUE);
799 silc_mutex_unlock(conn->internal->lock);
800 client_entry->nickname_normalized = nick;
802 client_entry->mode = mode;
805 /* Deletes the client entry and frees all memory. */
807 void silc_client_del_client_entry(SilcClient client,
808 SilcClientConnection conn,
809 SilcClientEntry client_entry)
811 silc_free(client_entry->realname);
812 silc_free(client_entry->nickname_normalized);
813 silc_free(client_entry->internal.key);
814 if (client_entry->public_key)
815 silc_pkcs_public_key_free(client_entry->public_key);
816 silc_hash_table_free(client_entry->channels);
817 if (client_entry->internal.send_key)
818 silc_cipher_free(client_entry->internal.send_key);
819 if (client_entry->internal.receive_key)
820 silc_cipher_free(client_entry->internal.receive_key);
821 if (client_entry->internal.hmac_send)
822 silc_hmac_free(client_entry->internal.hmac_send);
823 if (client_entry->internal.hmac_receive)
824 silc_hmac_free(client_entry->internal.hmac_receive);
826 silc_client_ftp_session_free_client(conn, client_entry);
827 if (client_entry->internal->ke)
828 silc_client_abort_key_agreement(client, conn, client_entry);
830 silc_atomic_uninit8(&client_entry->internal.refcnt);
831 silc_free(client_entry);
834 /* Removes client from the cache by the client entry. */
836 SilcBool silc_client_del_client(SilcClient client, SilcClientConnection conn,
837 SilcClientEntry client_entry)
844 SILC_LOG_DEBUG(("Client %p refcnt %d->%d", client_entry,
845 silc_atomic_get_int8(&client_entry->internal.refcnt),
846 silc_atomic_get_int8(&client_entry->internal.refcnt) - 1));
847 if (silc_atomic_sub_int8(&client_entry->internal.refcnt, 1) > 0)
850 SILC_LOG_DEBUG(("Deleting client %p"));
852 silc_mutex_lock(conn->internal->lock);
853 ret = silc_idcache_del_by_context(conn->internal->client_cache,
855 silc_mutex_unlock(conn->internal->lock);
858 /* Remove from channels */
859 silc_client_remove_from_channels(client, conn, client_entry);
861 /* Free the client entry data */
862 silc_client_del_client_entry(client, conn, client_entry);
868 /* Take reference of client entry */
870 void silc_client_ref_client(SilcClient client, SilcClientConnection conn,
871 SilcClientEntry client_entry)
873 silc_atomic_add_int8(&client_entry->internal.refcnt, 1);
874 SILC_LOG_DEBUG(("Client %p refcnt %d->%d", client_entry,
875 silc_atomic_get_int8(&client_entry->internal.refcnt) - 1,
876 silc_atomic_get_int8(&client_entry->internal.refcnt)));
879 /* Release reference of client entry */
881 void silc_client_unref_client(SilcClient client, SilcClientConnection conn,
882 SilcClientEntry client_entry)
885 SILC_LOG_DEBUG(("Client %p refcnt %d->%d", client_entry,
886 silc_atomic_get_int8(&client_entry->internal.refcnt),
887 silc_atomic_get_int8(&client_entry->internal.refcnt) - 1));
889 silc_atomic_sub_int8(&client_entry->internal.refcnt, 1) == 0)
890 silc_client_del_client(client, conn, client_entry);
893 /* Free client entry list */
895 void silc_client_list_free(SilcClient client, SilcClientConnection conn,
896 SilcDList client_list)
898 SilcClientEntry client_entry;
901 silc_dlist_start(client_list);
902 while ((client_entry = silc_dlist_get(client_list)))
903 silc_client_unref_client(client, conn, client_entry);
905 silc_dlist_uninit(client_list);
909 /* Formats the nickname of the client specified by the `client_entry'.
910 If the format is specified by the application this will format the
911 nickname and replace the old nickname in the client entry. If the
912 format string is not specified then this function has no effect. */
914 void silc_client_nickname_format(SilcClient client,
915 SilcClientConnection conn,
916 SilcClientEntry client_entry)
919 char newnick[128 + 1];
923 SilcClientEntry entry, unformatted = NULL;
925 SILC_LOG_DEBUG(("Start"));
927 if (!client->internal->params->nickname_format[0])
930 if (!client_entry->nickname[0])
933 /* Get all clients with same nickname. Do not perform the formatting
934 if there aren't any clients with same nickname unless the application
935 is forcing us to do so. */
936 clients = silc_client_get_clients_local(client, conn,
937 client_entry->nickname, NULL);
938 if (!clients && !client->internal->params->nickname_force_format)
943 while ((entry = silc_dlist_get(clients))) {
944 if (entry->internal.valid && entry != client_entry)
946 if (entry->internal.valid && entry != client_entry &&
947 silc_utf8_strcasecmp(entry->nickname, client_entry->nickname)) {
952 if (!len || freebase)
955 /* If we are changing nickname of our local entry we'll enforce
956 that we will always get the unformatted nickname. Give our
957 format number to the one that is not formatted now. */
958 if (unformatted && client_entry == conn->local_entry)
959 client_entry = unformatted;
961 memset(newnick, 0, sizeof(newnick));
962 cp = client->internal->params->nickname_format;
972 if (!client_entry->nickname[0])
974 len = strlen(client_entry->nickname);
975 memcpy(&newnick[off], client_entry->nickname, len);
979 /* Stripped hostname */
980 if (!client_entry->hostname[0])
982 len = strcspn(client_entry->hostname, ".");
983 i = strcspn(client_entry->hostname, "-");
986 memcpy(&newnick[off], client_entry->hostname, len);
991 if (!client_entry->hostname[0])
993 len = strlen(client_entry->hostname);
994 memcpy(&newnick[off], client_entry->hostname, len);
998 /* Stripped server name */
999 if (!client_entry->server)
1001 len = strcspn(client_entry->server, ".");
1002 memcpy(&newnick[off], client_entry->server, len);
1006 /* Full server name */
1007 if (!client_entry->server)
1009 len = strlen(client_entry->server);
1010 memcpy(&newnick[off], client_entry->server, len);
1014 /* Ascending number */
1019 if (silc_dlist_count(clients) == 1)
1022 silc_dlist_start(clients);
1023 while ((entry = silc_dlist_get(clients))) {
1024 if (!silc_utf8_strncasecmp(entry->nickname, newnick, off))
1026 if (strlen(entry->nickname) <= off)
1028 num = atoi(&entry->nickname[off]);
1033 memset(tmp, 0, sizeof(tmp));
1034 snprintf(tmp, sizeof(tmp) - 1, "%d", ++max);
1036 memcpy(&newnick[off], tmp, len);
1041 /* Some other character in the string */
1042 memcpy(&newnick[off], cp, 1);
1051 memcpy(client_entry->nickname, newnick, strlen(newnick));
1052 silc_client_list_free(client, conn, clients);
1055 /************************ Channel Searching Locally *************************/
1057 /* Finds entry for channel by the channel name. Returns the entry or NULL
1058 if the entry was not found. It is found only if the client is joined
1061 SilcChannelEntry silc_client_get_channel(SilcClient client,
1062 SilcClientConnection conn,
1065 SilcIDCacheEntry id_cache;
1066 SilcChannelEntry entry;
1068 if (!client || !conn || !channel)
1071 SILC_LOG_DEBUG(("Find channel %s", channel));
1073 /* Normalize name for search */
1074 channel = silc_channel_name_check(channel, strlen(channel), SILC_STRING_UTF8,
1079 silc_mutex_lock(conn->internal->lock);
1081 if (!silc_idcache_find_by_name_one(conn->internal->channel_cache, channel,
1083 silc_mutex_unlock(conn->internal->lock);
1088 SILC_LOG_DEBUG(("Found"));
1090 entry = id_cache->context;
1093 silc_client_ref_channel(client, conn, entry);
1094 silc_mutex_unlock(conn->internal->lock);
1101 /* Finds entry for channel by the channel ID. Returns the entry or NULL
1102 if the entry was not found. It is found only if the client is joined
1105 SilcChannelEntry silc_client_get_channel_by_id(SilcClient client,
1106 SilcClientConnection conn,
1107 SilcChannelID *channel_id)
1109 SilcIDCacheEntry id_cache;
1110 SilcChannelEntry entry;
1112 if (!client || !conn || !channel_id)
1115 SILC_LOG_DEBUG(("Find channel by id %s",
1116 silc_id_render(channel_id, SILC_ID_CHANNEL)));
1118 silc_mutex_lock(conn->internal->lock);
1120 if (!silc_idcache_find_by_id_one(conn->internal->channel_cache, channel_id,
1122 silc_mutex_unlock(conn->internal->lock);
1126 SILC_LOG_DEBUG(("Found"));
1128 entry = id_cache->context;
1131 silc_client_ref_channel(client, conn, entry);
1132 silc_mutex_unlock(conn->internal->lock);
1137 /********************** Channel Resolving from Server ***********************/
1139 /* Channel resolving context */
1142 SilcGetChannelCallback completion;
1144 } *SilcClientGetChannelInternal;
1146 /* Resolving command callback */
1148 static SilcBool silc_client_get_channel_cb(SilcClient client,
1149 SilcClientConnection conn,
1150 SilcCommand command,
1156 SilcClientGetChannelInternal i = context;
1157 SilcChannelEntry entry;
1159 if (error != SILC_STATUS_OK) {
1160 SILC_LOG_DEBUG(("Resolving failed: %s", silc_get_status_message(error)));
1162 i->completion(client, conn, error, NULL, i->context);
1166 /* Add the returned channel to list */
1167 if (i->completion) {
1168 entry = va_arg(ap, SilcChannelEntry);
1169 silc_client_ref_channel(client, conn, entry);
1170 silc_dlist_add(i->channels, entry);
1173 if (status == SILC_STATUS_OK || status == SILC_STATUS_LIST_END) {
1174 /* Deliver the channels to the caller */
1175 if (i->completion) {
1176 SILC_LOG_DEBUG(("Resolved %d channels", silc_dlist_count(i->channels)));
1177 silc_dlist_start(i->channels);
1178 i->completion(client, conn, SILC_STATUS_OK, i->channels, i->context);
1186 silc_client_list_free_channels(client, conn, i->channels);
1191 /* Resolves channel entry from the server by the channel name. */
1193 void silc_client_get_channel_resolve(SilcClient client,
1194 SilcClientConnection conn,
1196 SilcGetChannelCallback completion,
1199 SilcClientGetChannelInternal i;
1201 if (!client || !conn || !channel_name || !completion)
1204 SILC_LOG_DEBUG(("Resolve channel %s", channel_name));
1206 i = silc_calloc(1, sizeof(*i));
1209 i->completion = completion;
1210 i->context = context;
1211 i->channels = silc_dlist_init();
1217 /* Send the command */
1218 if (!silc_client_command_send(client, conn, SILC_COMMAND_IDENTIFY,
1219 silc_client_get_channel_cb, i, 1,
1220 3, channel_name, strlen(channel_name))) {
1222 completion(client, conn, SILC_STATUS_ERR_RESOURCE_LIMIT, NULL, context);
1226 /* Resolves channel information from the server by the channel ID. */
1229 silc_client_get_channel_by_id_resolve(SilcClient client,
1230 SilcClientConnection conn,
1231 SilcChannelID *channel_id,
1232 SilcGetChannelCallback completion,
1235 SilcClientGetChannelInternal i;
1237 SilcUInt16 cmd_ident;
1239 if (!client || !conn || !channel_id || !completion)
1242 SILC_LOG_DEBUG(("Resolve channel by id %s",
1243 silc_id_render(channel_id, SILC_ID_CHANNEL)));
1245 i = silc_calloc(1, sizeof(*i));
1248 i->completion = completion;
1249 i->context = context;
1250 i->channels = silc_dlist_init();
1256 /* Send the command */
1257 idp = silc_id_payload_encode(channel_id, SILC_ID_CHANNEL);
1258 cmd_ident = silc_client_command_send(client, conn, SILC_COMMAND_IDENTIFY,
1259 silc_client_get_channel_cb, i, 1,
1260 5, silc_buffer_datalen(idp));
1261 silc_buffer_free(idp);
1262 if (!cmd_ident && completion)
1263 completion(client, conn, SILC_STATUS_ERR_RESOURCE_LIMIT, NULL, context);
1268 /************************* Channel Entry Routines ***************************/
1270 /* Add new channel entry to the ID Cache */
1272 SilcChannelEntry silc_client_add_channel(SilcClient client,
1273 SilcClientConnection conn,
1274 const char *channel_name,
1276 SilcChannelID *channel_id)
1278 SilcChannelEntry channel;
1279 char *channel_namec;
1281 SILC_LOG_DEBUG(("Start"));
1283 channel = silc_calloc(1, sizeof(*channel));
1287 silc_atomic_init8(&channel->internal.refcnt, 0);
1288 channel->id = *channel_id;
1289 channel->mode = mode;
1291 channel->channel_name = strdup(channel_name);
1292 if (!channel->channel_name) {
1297 channel->user_list = silc_hash_table_alloc(1, silc_hash_ptr, NULL, NULL,
1298 NULL, NULL, NULL, TRUE);
1299 if (!channel->user_list) {
1300 silc_free(channel->channel_name);
1305 /* Normalize channel name */
1306 channel_namec = silc_channel_name_check(channel_name, strlen(channel_name),
1307 SILC_STRING_UTF8, 256, NULL);
1308 if (!channel_namec) {
1309 silc_free(channel->channel_name);
1310 silc_hash_table_free(channel->user_list);
1315 silc_mutex_lock(conn->internal->lock);
1317 /* Add channel to cache, the normalized channel name is saved to cache */
1318 if (!silc_idcache_add(conn->internal->channel_cache, channel_namec,
1319 &channel->id, channel)) {
1320 silc_free(channel_namec);
1321 silc_free(channel->channel_name);
1322 silc_hash_table_free(channel->user_list);
1324 silc_mutex_unlock(conn->internal->lock);
1328 silc_mutex_unlock(conn->internal->lock);
1329 silc_client_ref_channel(client, conn, channel);
1331 SILC_LOG_DEBUG(("Added"));
1336 /* Removes channel from the cache by the channel entry. */
1338 SilcBool silc_client_del_channel(SilcClient client, SilcClientConnection conn,
1339 SilcChannelEntry channel)
1348 if (silc_atomic_sub_int8(&channel->internal.refcnt, 1) > 0)
1351 SILC_LOG_DEBUG(("Deleting channel %p", channel));
1353 silc_mutex_lock(conn->internal->lock);
1354 ret = silc_idcache_del_by_context(conn->internal->channel_cache,
1356 silc_mutex_unlock(conn->internal->lock);
1361 silc_client_empty_channel(client, conn, channel);
1362 silc_free(channel->channel_name);
1363 silc_free(channel->topic);
1364 if (channel->founder_key)
1365 silc_pkcs_public_key_free(channel->founder_key);
1366 if (channel->internal.channel_key)
1367 silc_cipher_free(channel->internal.channel_key);
1368 if (channel->internal.hmac)
1369 silc_hmac_free(channel->internal.hmac);
1370 if (channel->internal.old_channel_keys) {
1371 silc_dlist_start(channel->internal.old_channel_keys);
1372 while ((key = silc_dlist_get(channel->internal.old_channel_keys)))
1373 silc_cipher_free(key);
1374 silc_dlist_uninit(channel->internal.old_channel_keys);
1376 if (channel->internal.old_hmacs) {
1377 silc_dlist_start(channel->internal.old_hmacs);
1378 while ((hmac = silc_dlist_get(channel->internal.old_hmacs)))
1379 silc_hmac_free(hmac);
1380 silc_dlist_uninit(channel->internal.old_hmacs);
1382 silc_client_del_channel_private_keys(client, conn, channel);
1383 silc_atomic_uninit8(&channel->internal.refcnt);
1384 silc_schedule_task_del_by_context(conn->client->schedule, channel);
1390 /* Replaces the channel ID of the `channel' to `new_id'. Returns FALSE
1391 if the ID could not be changed. */
1393 SilcBool silc_client_replace_channel_id(SilcClient client,
1394 SilcClientConnection conn,
1395 SilcChannelEntry channel,
1396 SilcChannelID *new_id)
1398 SilcBool ret = FALSE;
1403 SILC_LOG_DEBUG(("Old Channel ID id(%s)",
1404 silc_id_render(&channel->id, SILC_ID_CHANNEL)));
1405 SILC_LOG_DEBUG(("New Channel ID id(%s)",
1406 silc_id_render(new_id, SILC_ID_CHANNEL)));
1409 silc_mutex_lock(conn->internal->lock);
1410 silc_idcache_update_by_context(conn->internal->channel_cache, channel,
1411 new_id, NULL, FALSE);
1412 silc_mutex_unlock(conn->internal->lock);
1417 /* Take reference of channel entry */
1419 void silc_client_ref_channel(SilcClient client, SilcClientConnection conn,
1420 SilcChannelEntry channel_entry)
1422 silc_atomic_add_int8(&channel_entry->internal.refcnt, 1);
1425 /* Release reference of channel entry */
1427 void silc_client_unref_channel(SilcClient client, SilcClientConnection conn,
1428 SilcChannelEntry channel_entry)
1430 if (channel_entry &&
1431 silc_atomic_sub_int8(&channel_entry->internal.refcnt, 1) == 0)
1432 silc_client_del_channel(client, conn, channel_entry);
1435 /* Free channel entry list */
1437 void silc_client_list_free_channels(SilcClient client,
1438 SilcClientConnection conn,
1439 SilcDList channel_list)
1441 SilcChannelEntry channel_entry;
1444 silc_dlist_start(channel_list);
1445 while ((channel_entry = silc_dlist_get(channel_list)))
1446 silc_client_unref_channel(client, conn, channel_entry);
1448 silc_dlist_uninit(channel_list);
1452 /************************* Server Searching Locally *************************/
1454 /* Finds entry for server by the server name. */
1456 SilcServerEntry silc_client_get_server(SilcClient client,
1457 SilcClientConnection conn,
1460 SilcIDCacheEntry id_cache;
1461 SilcServerEntry entry;
1463 if (!client || !conn || !server_name)
1466 SILC_LOG_DEBUG(("Find server by name %s", server_name));
1468 /* Normalize server name for search */
1469 server_name = silc_identifier_check(server_name, strlen(server_name),
1470 SILC_STRING_UTF8, 256, NULL);
1474 silc_mutex_lock(conn->internal->lock);
1476 if (!silc_idcache_find_by_name_one(conn->internal->server_cache,
1477 server_name, &id_cache)) {
1478 silc_free(server_name);
1479 silc_mutex_unlock(conn->internal->lock);
1483 SILC_LOG_DEBUG(("Found"));
1486 entry = id_cache->context;
1487 silc_client_ref_server(client, conn, entry);
1489 silc_mutex_unlock(conn->internal->lock);
1491 silc_free(server_name);
1496 /* Finds entry for server by the server ID. */
1498 SilcServerEntry silc_client_get_server_by_id(SilcClient client,
1499 SilcClientConnection conn,
1500 SilcServerID *server_id)
1502 SilcIDCacheEntry id_cache;
1503 SilcServerEntry entry;
1505 if (!client || !conn || !server_id)
1508 SILC_LOG_DEBUG(("Find server by id %s",
1509 silc_id_render(server_id, SILC_ID_SERVER)));
1511 silc_mutex_lock(conn->internal->lock);
1513 if (!silc_idcache_find_by_id_one(conn->internal->server_cache,
1514 server_id, &id_cache)) {
1515 silc_mutex_unlock(conn->internal->lock);
1519 SILC_LOG_DEBUG(("Found"));
1522 entry = id_cache->context;
1523 silc_client_ref_server(client, conn, entry);
1525 silc_mutex_unlock(conn->internal->lock);
1530 /*********************** Server Resolving from Server ***********************/
1532 /* Resolving context */
1535 SilcGetServerCallback completion;
1537 } *SilcClientGetServerInternal;
1539 /* Resolving command callback */
1541 static SilcBool silc_client_get_server_cb(SilcClient client,
1542 SilcClientConnection conn,
1543 SilcCommand command,
1549 SilcClientGetServerInternal i = context;
1550 SilcServerEntry server;
1552 if (error != SILC_STATUS_OK) {
1553 SILC_LOG_DEBUG(("Resolving failed: %s", silc_get_status_message(error)));
1555 i->completion(client, conn, error, NULL, i->context);
1559 /* Add the returned servers to list */
1560 if (i->completion) {
1561 server = va_arg(ap, SilcServerEntry);
1562 silc_client_ref_server(client, conn, server);
1563 silc_dlist_add(i->servers, server);
1564 server->internal.resolve_cmd_ident = 0;
1567 if (status == SILC_STATUS_OK || status == SILC_STATUS_LIST_END) {
1568 /* Deliver the servers to the caller */
1569 if (i->completion) {
1570 SILC_LOG_DEBUG(("Resolved %d servers", silc_dlist_count(i->servers)));
1571 silc_dlist_start(i->servers);
1572 i->completion(client, conn, SILC_STATUS_OK, i->servers, i->context);
1580 silc_client_list_free_servers(client, conn, i->servers);
1585 /* Resolve server by server ID */
1588 silc_client_get_server_by_id_resolve(SilcClient client,
1589 SilcClientConnection conn,
1590 SilcServerID *server_id,
1591 SilcGetServerCallback completion,
1594 SilcClientGetServerInternal i;
1595 SilcServerEntry server;
1597 SilcUInt16 cmd_ident;
1599 if (!client || !conn || !server_id || !completion)
1602 SILC_LOG_DEBUG(("Resolve server by id %s",
1603 silc_id_render(server_id, SILC_ID_SERVER)));
1605 i = silc_calloc(1, sizeof(*i));
1608 i->completion = completion;
1609 i->context = context;
1610 i->servers = silc_dlist_init();
1616 /* Attach to resolving, if on going */
1617 server = silc_client_get_server_by_id(client, conn, server_id);
1618 if (server && server->internal.resolve_cmd_ident) {
1619 SILC_LOG_DEBUG(("Attach to existing resolving"));
1620 silc_client_unref_server(client, conn, server);
1621 silc_client_command_pending(conn, SILC_COMMAND_NONE,
1622 server->internal.resolve_cmd_ident,
1623 silc_client_get_server_cb, i);
1624 return server->internal.resolve_cmd_ident;
1627 /* Send the command */
1628 idp = silc_id_payload_encode(server_id, SILC_ID_SERVER);
1629 cmd_ident = silc_client_command_send(client, conn, SILC_COMMAND_IDENTIFY,
1630 silc_client_get_server_cb, i, 1,
1631 5, silc_buffer_datalen(idp));
1632 silc_buffer_free(idp);
1633 if (!cmd_ident && completion)
1634 completion(client, conn, SILC_STATUS_ERR_RESOURCE_LIMIT, NULL, context);
1636 if (server && cmd_ident)
1637 server->internal.resolve_cmd_ident = cmd_ident;
1639 silc_client_unref_server(client, conn, server);
1644 /************************** Server Entry Routines ***************************/
1646 /* Add new server entry */
1648 SilcServerEntry silc_client_add_server(SilcClient client,
1649 SilcClientConnection conn,
1650 const char *server_name,
1651 const char *server_info,
1652 SilcServerID *server_id)
1654 SilcServerEntry server_entry;
1655 char *server_namec = NULL;
1660 SILC_LOG_DEBUG(("Adding new server %s", server_name));
1662 server_entry = silc_calloc(1, sizeof(*server_entry));
1666 silc_atomic_init8(&server_entry->internal.refcnt, 0);
1667 server_entry->id = *server_id;
1669 server_entry->server_name = strdup(server_name);
1671 server_entry->server_info = strdup(server_info);
1673 /* Normalize server name */
1675 server_namec = silc_identifier_check(server_name, strlen(server_name),
1676 SILC_STRING_UTF8, 256, NULL);
1677 if (!server_namec) {
1678 silc_free(server_entry->server_name);
1679 silc_free(server_entry->server_info);
1680 silc_free(server_entry);
1685 silc_mutex_lock(conn->internal->lock);
1687 /* Add server to cache */
1688 if (!silc_idcache_add(conn->internal->server_cache, server_namec,
1689 &server_entry->id, server_entry)) {
1690 silc_free(server_namec);
1691 silc_free(server_entry->server_name);
1692 silc_free(server_entry->server_info);
1693 silc_free(server_entry);
1694 silc_mutex_unlock(conn->internal->lock);
1698 silc_mutex_unlock(conn->internal->lock);
1699 silc_client_ref_server(client, conn, server_entry);
1701 SILC_LOG_DEBUG(("Added"));
1703 return server_entry;
1706 /* Removes server from the cache by the server entry. */
1708 SilcBool silc_client_del_server(SilcClient client, SilcClientConnection conn,
1709 SilcServerEntry server)
1716 if (silc_atomic_sub_int8(&server->internal.refcnt, 1) > 0)
1719 SILC_LOG_DEBUG(("Deleting server %p", server));
1721 silc_mutex_lock(conn->internal->lock);
1722 ret = silc_idcache_del_by_context(conn->internal->server_cache,
1724 silc_mutex_unlock(conn->internal->lock);
1726 silc_free(server->server_name);
1727 silc_free(server->server_info);
1728 if (server->public_key)
1729 silc_pkcs_public_key_free(server->public_key);
1730 silc_atomic_uninit8(&server->internal.refcnt);
1736 /* Updates the `server_entry' with the new information sent as argument. */
1738 void silc_client_update_server(SilcClient client,
1739 SilcClientConnection conn,
1740 SilcServerEntry server_entry,
1741 const char *server_name,
1742 const char *server_info)
1744 char *server_namec = NULL;
1746 SILC_LOG_DEBUG(("Updating server %p", server_entry));
1749 (!server_entry->server_name ||
1750 !silc_utf8_strcasecmp(server_entry->server_name, server_name))) {
1752 server_namec = silc_identifier_check(server_name, strlen(server_name),
1753 SILC_STRING_UTF8, 256, NULL);
1757 silc_free(server_entry->server_name);
1758 server_entry->server_name = strdup(server_name);
1759 if (!server_entry->server_name)
1762 /* Update cache entry */
1763 silc_mutex_lock(conn->internal->lock);
1764 silc_idcache_update_by_context(conn->internal->server_cache, server_entry,
1765 NULL, server_namec, TRUE);
1766 silc_mutex_unlock(conn->internal->lock);
1770 (!server_entry->server_info ||
1771 !silc_utf8_strcasecmp(server_entry->server_info, server_info))) {
1772 silc_free(server_entry->server_info);
1773 server_entry->server_info = strdup(server_info);
1777 /* Take reference of server entry */
1779 void silc_client_ref_server(SilcClient client, SilcClientConnection conn,
1780 SilcServerEntry server_entry)
1782 silc_atomic_add_int8(&server_entry->internal.refcnt, 1);
1785 /* Release reference of server entry */
1787 void silc_client_unref_server(SilcClient client, SilcClientConnection conn,
1788 SilcServerEntry server_entry)
1791 silc_atomic_sub_int8(&server_entry->internal.refcnt, 1) == 0)
1792 silc_client_del_server(client, conn, server_entry);
1795 /* Free server entry list */
1797 void silc_client_list_free_servers(SilcClient client,
1798 SilcClientConnection conn,
1799 SilcDList server_list)
1801 SilcServerEntry server_entry;
1804 silc_dlist_start(server_list);
1805 while ((server_entry = silc_dlist_get(server_list)))
1806 silc_client_unref_server(client, conn, server_entry);
1808 silc_dlist_uninit(server_list);