5 Author: Pekka Riikonen <priikone@silcnet.org>
7 Copyright (C) 2001 - 2002 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.
21 #include "silcincludes.h"
22 #include "silcclient.h"
23 #include "client_internal.h"
25 /******************************************************************************
27 Client Searching Locally
29 ******************************************************************************/
31 /* Same as silc_client_get_clients function but does not resolve anything
32 from the server. This checks local cache and returns all matching
33 clients from the local cache. If none was found this returns NULL.
34 The `nickname' is the real nickname of the client, and the `format'
35 is the formatted nickname to find exact match from multiple found
36 entries. The format must be same as given in the SilcClientParams
37 structure to the client library. If the `format' is NULL all found
38 clients by `nickname' are returned. */
40 SilcClientEntry *silc_client_get_clients_local(SilcClient client,
41 SilcClientConnection conn,
44 SilcUInt32 *clients_count)
46 SilcIDCacheEntry id_cache;
47 SilcIDCacheList list = NULL;
48 SilcClientEntry entry, *clients;
52 /* Find ID from cache */
53 if (!silc_idcache_find_by_name(conn->client_cache, (char *)nickname, &list))
56 if (!silc_idcache_list_count(list)) {
57 silc_idcache_list_free(list);
61 clients = silc_calloc(silc_idcache_list_count(list), sizeof(*clients));
62 *clients_count = silc_idcache_list_count(list);
65 /* Take all without any further checking */
66 silc_idcache_list_first(list, &id_cache);
68 clients[i++] = id_cache->context;
70 if (!silc_idcache_list_next(list, &id_cache))
74 /* Check multiple cache entries for match */
75 silc_idcache_list_first(list, &id_cache);
77 entry = (SilcClientEntry)id_cache->context;
78 if (strcasecmp(entry->nickname, format)) {
79 if (!silc_idcache_list_next(list, &id_cache)) {
86 clients[i++] = id_cache->context;
88 if (!silc_idcache_list_next(list, &id_cache))
94 silc_idcache_list_free(list);
107 /******************************************************************************
109 Client Resolving from Server
111 ******************************************************************************/
115 SilcClientConnection conn;
116 SilcGetClientCallback completion;
120 } *GetClientInternal;
122 SILC_CLIENT_CMD_FUNC(get_client_callback)
124 GetClientInternal i = (GetClientInternal)context;
125 SilcClientEntry *clients;
126 SilcUInt32 clients_count;
128 /* Get the clients */
129 clients = silc_client_get_clients_local(i->client, i->conn,
130 i->nickname, i->server,
133 i->completion(i->client, i->conn, clients, clients_count, i->context);
136 i->completion(i->client, i->conn, NULL, 0, i->context);
139 silc_free(i->nickname);
140 silc_free(i->server);
144 /* Finds client entry or entries by the `nickname' and `server'. The
145 completion callback will be called when the client entries has been found.
147 Note: this function is always asynchronous and resolves the client
148 information from the server. Thus, if you already know the client
149 information then use the silc_client_get_client_by_id function to
150 get the client entry since this function may be very slow and should
151 be used only to initially get the client entries. */
153 void silc_client_get_clients(SilcClient client,
154 SilcClientConnection conn,
155 const char *nickname,
157 SilcGetClientCallback completion,
166 i = silc_calloc(1, sizeof(*i));
169 i->nickname = strdup(nickname);
170 i->server = server ? strdup(server) : NULL;
171 i->completion = completion;
172 i->context = context;
174 if (nickname && server) {
175 userhost = silc_calloc(strlen(nickname) + strlen(server) + 2,
177 strncat(userhost, nickname, strlen(nickname));
178 strncat(userhost, "@", 1);
179 strncat(userhost, server, strlen(server));
181 userhost = strdup(nickname);
184 /* Register our own command reply for this command */
185 silc_client_command_register(client, SILC_COMMAND_IDENTIFY, NULL, NULL,
186 silc_client_command_reply_identify_i, 0,
189 /* Send the command */
190 silc_client_command_send(client, conn, SILC_COMMAND_IDENTIFY,
191 conn->cmd_ident, 1, 1, userhost,
194 /* Add pending callback */
195 silc_client_command_pending(conn, SILC_COMMAND_IDENTIFY, conn->cmd_ident,
196 silc_client_command_get_client_callback,
202 /* The old style function to find client entry. This is used by the
203 library internally. If `query' is TRUE then the client information is
204 requested by the server. The pending command callback must be set
206 /* XXX This function should be removed */
208 SilcClientEntry silc_idlist_get_client(SilcClient client,
209 SilcClientConnection conn,
210 const char *nickname,
214 SilcIDCacheEntry id_cache;
215 SilcIDCacheList list = NULL;
216 SilcClientEntry entry = NULL;
218 SILC_LOG_DEBUG(("Start"));
220 /* Find ID from cache */
221 if (!silc_idcache_find_by_name(conn->client_cache, (char *)nickname,
226 SILC_LOG_DEBUG(("Requesting Client ID from server"));
228 /* Register our own command reply for this command */
229 silc_client_command_register(client, SILC_COMMAND_IDENTIFY, NULL, NULL,
230 silc_client_command_reply_identify_i, 0,
233 /* Send the command */
234 silc_client_command_send(client, conn, SILC_COMMAND_IDENTIFY,
235 conn->cmd_ident, 1, 1, nickname,
239 silc_idcache_list_free(list);
247 /* Take first found cache entry */
248 if (!silc_idcache_list_first(list, &id_cache))
251 entry = (SilcClientEntry)id_cache->context;
253 /* Check multiple cache entries for match */
254 silc_idcache_list_first(list, &id_cache);
256 entry = (SilcClientEntry)id_cache->context;
258 if (strcasecmp(entry->nickname, format)) {
259 if (!silc_idcache_list_next(list, &id_cache)) {
271 /* If match weren't found, request it */
277 silc_idcache_list_free(list);
285 SilcClientConnection conn;
286 SilcUInt32 list_count;
287 SilcBuffer client_id_list;
288 SilcGetClientCallback completion;
290 } *GetClientsByListInternal;
292 SILC_CLIENT_CMD_FUNC(get_clients_list_callback)
294 GetClientsByListInternal i = (GetClientsByListInternal)context;
295 SilcIDCacheEntry id_cache = NULL;
296 SilcBuffer client_id_list = i->client_id_list;
297 SilcClientEntry *clients = NULL;
298 SilcUInt32 clients_count = 0;
302 SILC_LOG_DEBUG(("Start"));
304 for (c = 0; c < i->list_count; c++) {
306 SilcClientID *client_id;
309 SILC_GET16_MSB(idp_len, client_id_list->data + 2);
311 client_id = silc_id_payload_parse_id(client_id_list->data, idp_len);
313 silc_buffer_pull(client_id_list, idp_len);
317 /* Get the client entry */
318 if (silc_idcache_find_by_id_one_ext(i->conn->client_cache,
321 silc_hash_client_id_compare, NULL,
323 clients = silc_realloc(clients, sizeof(*clients) *
324 (clients_count + 1));
325 clients[clients_count] = (SilcClientEntry)id_cache->context;
330 silc_free(client_id);
331 silc_buffer_pull(client_id_list, idp_len);
335 i->completion(i->client, i->conn, clients, clients_count, i->context);
338 i->completion(i->client, i->conn, NULL, 0, i->context);
341 if (i->client_id_list)
342 silc_buffer_free(i->client_id_list);
346 /* Gets client entries by the list of client ID's `client_id_list'. This
347 always resolves those client ID's it does not know yet from the server
348 so this function might take a while. The `client_id_list' is a list
349 of ID Payloads added one after other. JOIN command reply and USERS
350 command reply for example returns this sort of list. The `completion'
351 will be called after the entries are available. */
353 void silc_client_get_clients_by_list(SilcClient client,
354 SilcClientConnection conn,
355 SilcUInt32 list_count,
356 SilcBuffer client_id_list,
357 SilcGetClientCallback completion,
360 SilcIDCacheEntry id_cache = NULL;
362 unsigned char **res_argv = NULL;
363 SilcUInt32 *res_argv_lens = NULL, *res_argv_types = NULL, res_argc = 0;
364 GetClientsByListInternal in;
366 SILC_LOG_DEBUG(("Start"));
368 in = silc_calloc(1, sizeof(*in));
371 in->list_count = list_count;
372 in->client_id_list = silc_buffer_copy(client_id_list);
373 in->completion = completion;
374 in->context = context;
376 for (i = 0; i < list_count; i++) {
378 SilcClientID *client_id;
379 SilcClientEntry entry;
382 SILC_GET16_MSB(idp_len, client_id_list->data + 2);
384 client_id = silc_id_payload_parse_id(client_id_list->data, idp_len);
386 silc_buffer_pull(client_id_list, idp_len);
390 /* Check if we have this client cached already. */
392 silc_idcache_find_by_id_one_ext(conn->client_cache, (void *)client_id,
394 silc_hash_client_id_compare, NULL,
397 /* If we don't have the entry or it has incomplete info, then resolve
398 it from the server. */
399 entry = id_cache ? (SilcClientEntry)id_cache->context : NULL;
400 if (!id_cache || !entry->nickname) {
403 if (entry->status & SILC_CLIENT_STATUS_RESOLVING) {
404 entry->status &= ~SILC_CLIENT_STATUS_RESOLVING;
405 silc_free(client_id);
406 silc_buffer_pull(client_id_list, idp_len);
410 entry->status |= SILC_CLIENT_STATUS_RESOLVING;
413 /* No we don't have it, query it from the server. Assemble argument
414 table that will be sent fr the IDENTIFY command later. */
415 res_argv = silc_realloc(res_argv, sizeof(*res_argv) *
417 res_argv_lens = silc_realloc(res_argv_lens, sizeof(*res_argv_lens) *
419 res_argv_types = silc_realloc(res_argv_types, sizeof(*res_argv_types) *
421 res_argv[res_argc] = client_id_list->data;
422 res_argv_lens[res_argc] = idp_len;
423 res_argv_types[res_argc] = res_argc + 5;
427 silc_free(client_id);
428 silc_buffer_pull(client_id_list, idp_len);
431 /* Query the client information from server if the list included clients
432 that we don't know about. */
436 /* Send the IDENTIFY command to server */
437 res_cmd = silc_command_payload_encode(SILC_COMMAND_IDENTIFY,
438 res_argc, res_argv, res_argv_lens,
439 res_argv_types, ++conn->cmd_ident);
440 silc_client_packet_send(client, conn->sock, SILC_PACKET_COMMAND,
441 NULL, 0, NULL, NULL, res_cmd->data, res_cmd->len,
444 /* Register our own command reply for this command */
445 silc_client_command_register(client, SILC_COMMAND_IDENTIFY, NULL, NULL,
446 silc_client_command_reply_identify_i, 0,
449 /* Process the applications request after reply has been received */
450 silc_client_command_pending(conn, SILC_COMMAND_IDENTIFY, conn->cmd_ident,
451 silc_client_command_get_clients_list_callback,
454 silc_buffer_push(client_id_list, client_id_list->data -
455 client_id_list->head);
456 silc_buffer_free(res_cmd);
458 silc_free(res_argv_lens);
459 silc_free(res_argv_types);
463 silc_buffer_push(client_id_list, client_id_list->data -
464 client_id_list->head);
466 /* We have the clients in cache, get them and call the completion */
467 silc_client_command_get_clients_list_callback((void *)in, NULL);
470 /* Finds entry for client by the client's ID. Returns the entry or NULL
471 if the entry was not found. */
473 SilcClientEntry silc_client_get_client_by_id(SilcClient client,
474 SilcClientConnection conn,
475 SilcClientID *client_id)
477 SilcIDCacheEntry id_cache;
479 SILC_LOG_DEBUG(("Finding client by ID (%s)",
480 silc_id_render(client_id, SILC_ID_CLIENT)));
482 /* Find ID from cache */
483 if (!silc_idcache_find_by_id_one_ext(conn->client_cache, (void *)client_id,
485 silc_hash_client_id_compare, NULL,
489 SILC_LOG_DEBUG(("Found"));
491 return (SilcClientEntry)id_cache->context;
496 SilcClientConnection conn;
497 SilcClientID *client_id;
498 SilcGetClientCallback completion;
500 } *GetClientByIDInternal;
502 SILC_CLIENT_CMD_FUNC(get_client_by_id_callback)
504 GetClientByIDInternal i = (GetClientByIDInternal)context;
505 SilcClientEntry entry;
508 entry = silc_client_get_client_by_id(i->client, i->conn, i->client_id);
510 i->completion(i->client, i->conn, &entry, 1, i->context);
512 i->completion(i->client, i->conn, NULL, 0, i->context);
514 silc_free(i->client_id);
518 /* Same as above but will always resolve the information from the server.
519 Use this only if you know that you don't have the entry and the only
520 thing you know about the client is its ID. */
522 void silc_client_get_client_by_id_resolve(SilcClient client,
523 SilcClientConnection conn,
524 SilcClientID *client_id,
525 SilcGetClientCallback completion,
529 GetClientByIDInternal i = silc_calloc(1, sizeof(*i));
531 SILC_LOG_DEBUG(("Start"));
535 i->client_id = silc_id_dup(client_id, SILC_ID_CLIENT);
536 i->completion = completion;
537 i->context = context;
539 /* Register our own command reply for this command */
540 silc_client_command_register(client, SILC_COMMAND_WHOIS, NULL, NULL,
541 silc_client_command_reply_whois_i, 0,
544 /* Send the command */
545 idp = silc_id_payload_encode(client_id, SILC_ID_CLIENT);
546 silc_client_command_send(client, conn, SILC_COMMAND_WHOIS, conn->cmd_ident,
547 1, 3, idp->data, idp->len);
548 silc_buffer_free(idp);
550 /* Add pending callback */
551 silc_client_command_pending(conn, SILC_COMMAND_WHOIS, conn->cmd_ident,
552 silc_client_command_get_client_by_id_callback,
557 /******************************************************************************
559 Client, Channel and Server entry manipulation
561 ******************************************************************************/
564 /* Creates new client entry and adds it to the ID cache. Returns pointer
568 silc_client_add_client(SilcClient client, SilcClientConnection conn,
569 char *nickname, char *username,
570 char *userinfo, SilcClientID *id, SilcUInt32 mode)
572 SilcClientEntry client_entry;
575 SILC_LOG_DEBUG(("Start"));
577 /* Save the client infos */
578 client_entry = silc_calloc(1, sizeof(*client_entry));
579 client_entry->id = id;
580 client_entry->valid = TRUE;
581 silc_parse_userfqdn(nickname, &nick, &client_entry->server);
582 silc_parse_userfqdn(username, &client_entry->username,
583 &client_entry->hostname);
585 client_entry->realname = strdup(userinfo);
586 client_entry->mode = mode;
588 client_entry->nickname = strdup(nick);
589 client_entry->channels = silc_hash_table_alloc(1, silc_hash_ptr, NULL, NULL,
590 NULL, NULL, NULL, TRUE);
592 /* Format the nickname */
593 silc_client_nickname_format(client, conn, client_entry);
595 /* Add client to cache, the non-formatted nickname is saved to cache */
596 if (!silc_idcache_add(conn->client_cache, nick, client_entry->id,
597 (void *)client_entry, 0, NULL)) {
598 silc_free(client_entry->nickname);
599 silc_free(client_entry->username);
600 silc_free(client_entry->hostname);
601 silc_free(client_entry->server);
602 silc_hash_table_free(client_entry->channels);
603 silc_free(client_entry);
610 /* Updates the `client_entry' with the new information sent as argument. */
612 void silc_client_update_client(SilcClient client,
613 SilcClientConnection conn,
614 SilcClientEntry client_entry,
615 const char *nickname,
616 const char *username,
617 const char *userinfo,
622 SILC_LOG_DEBUG(("Start"));
624 if (!client_entry->username && username)
625 silc_parse_userfqdn(username, &client_entry->username,
626 &client_entry->hostname);
627 if (!client_entry->realname && userinfo)
628 client_entry->realname = strdup(userinfo);
629 if (!client_entry->nickname && nickname) {
630 silc_parse_userfqdn(nickname, &nick, &client_entry->server);
631 client_entry->nickname = strdup(nick);
632 silc_client_nickname_format(client, conn, client_entry);
634 client_entry->mode = mode;
637 /* Remove the old cache entry and create a new one */
638 silc_idcache_del_by_context(conn->client_cache, client_entry);
639 silc_idcache_add(conn->client_cache, nick, client_entry->id,
640 client_entry, 0, NULL);
644 /* Deletes the client entry and frees all memory. */
646 void silc_client_del_client_entry(SilcClient client,
647 SilcClientConnection conn,
648 SilcClientEntry client_entry)
650 SILC_LOG_DEBUG(("Start"));
652 silc_free(client_entry->nickname);
653 silc_free(client_entry->username);
654 silc_free(client_entry->realname);
655 silc_free(client_entry->hostname);
656 silc_free(client_entry->server);
657 silc_free(client_entry->id);
658 silc_free(client_entry->fingerprint);
659 silc_hash_table_free(client_entry->channels);
660 if (client_entry->send_key)
661 silc_cipher_free(client_entry->send_key);
662 if (client_entry->receive_key)
663 silc_cipher_free(client_entry->receive_key);
664 silc_free(client_entry->key);
665 silc_client_ftp_session_free_client(conn, client_entry);
666 if (client_entry->ke)
667 silc_client_abort_key_agreement(client, conn, client_entry);
668 silc_free(client_entry);
671 /* Removes client from the cache by the client entry. */
673 bool silc_client_del_client(SilcClient client, SilcClientConnection conn,
674 SilcClientEntry client_entry)
676 bool ret = silc_idcache_del_by_context(conn->client_cache, client_entry);
678 /* Remove from channels */
679 silc_client_remove_from_channels(client, conn, client_entry);
681 /* Free the client entry data */
682 silc_client_del_client_entry(client, conn, client_entry);
687 /* Add new channel entry to the ID Cache */
689 SilcChannelEntry silc_client_add_channel(SilcClient client,
690 SilcClientConnection conn,
691 const char *channel_name,
693 SilcChannelID *channel_id)
695 SilcChannelEntry channel;
697 SILC_LOG_DEBUG(("Start"));
699 channel = silc_calloc(1, sizeof(*channel));
700 channel->channel_name = strdup(channel_name);
701 channel->id = channel_id;
702 channel->mode = mode;
703 channel->user_list = silc_hash_table_alloc(1, silc_hash_ptr, NULL, NULL,
704 NULL, NULL, NULL, TRUE);
706 /* Put it to the ID cache */
707 if (!silc_idcache_add(conn->channel_cache, channel->channel_name,
708 (void *)channel->id, (void *)channel, 0, NULL)) {
709 silc_free(channel->channel_name);
710 silc_hash_table_free(channel->user_list);
718 /* Foreach callbcak to free all users from the channel when deleting a
721 static void silc_client_del_channel_foreach(void *key, void *context,
724 SilcChannelUser chu = (SilcChannelUser)context;
726 SILC_LOG_DEBUG(("Start"));
728 /* Remove the context from the client's channel hash table as that
729 table and channel's user_list hash table share this same context. */
730 silc_hash_table_del(chu->client->channels, chu->channel);
734 /* Removes channel from the cache by the channel entry. */
736 bool silc_client_del_channel(SilcClient client, SilcClientConnection conn,
737 SilcChannelEntry channel)
739 bool ret = silc_idcache_del_by_context(conn->channel_cache, channel);
741 SILC_LOG_DEBUG(("Start"));
743 /* Free all client entrys from the users list. The silc_hash_table_free
744 will free all the entries so they are not freed at the foreach
746 silc_hash_table_foreach(channel->user_list, silc_client_del_channel_foreach,
748 silc_hash_table_free(channel->user_list);
750 silc_free(channel->channel_name);
751 silc_free(channel->id);
752 silc_free(channel->key);
753 if (channel->channel_key)
754 silc_cipher_free(channel->channel_key);
756 silc_hmac_free(channel->hmac);
757 if (channel->old_channel_key)
758 silc_cipher_free(channel->old_channel_key);
759 if (channel->old_hmac)
760 silc_hmac_free(channel->old_hmac);
761 if (channel->rekey_task)
762 silc_schedule_task_del(conn->client->schedule, channel->rekey_task);
763 silc_client_del_channel_private_keys(client, conn, channel);
768 /* Replaces the channel ID of the `channel' to `new_id'. Returns FALSE
769 if the ID could not be changed. */
771 bool silc_client_replace_channel_id(SilcClient client,
772 SilcClientConnection conn,
773 SilcChannelEntry channel,
774 SilcChannelID *new_id)
779 SILC_LOG_DEBUG(("Old Channel ID id(%s)",
780 silc_id_render(channel->id, SILC_ID_CHANNEL)));
781 SILC_LOG_DEBUG(("New Channel ID id(%s)",
782 silc_id_render(new_id, SILC_ID_CHANNEL)));
784 silc_idcache_del_by_id(conn->channel_cache, channel->id);
785 silc_free(channel->id);
786 channel->id = new_id;
787 return silc_idcache_add(conn->channel_cache, channel->channel_name,
788 (void *)channel->id, (void *)channel, 0, NULL);
792 /* Finds entry for channel by the channel name. Returns the entry or NULL
793 if the entry was not found. It is found only if the client is joined
796 SilcChannelEntry silc_client_get_channel(SilcClient client,
797 SilcClientConnection conn,
800 SilcIDCacheEntry id_cache;
801 SilcChannelEntry entry;
803 SILC_LOG_DEBUG(("Start"));
805 if (!silc_idcache_find_by_name_one(conn->channel_cache, channel,
809 entry = (SilcChannelEntry)id_cache->context;
811 SILC_LOG_DEBUG(("Found"));
816 /* Finds entry for channel by the channel ID. Returns the entry or NULL
817 if the entry was not found. It is found only if the client is joined
820 SilcChannelEntry silc_client_get_channel_by_id(SilcClient client,
821 SilcClientConnection conn,
822 SilcChannelID *channel_id)
824 SilcIDCacheEntry id_cache;
825 SilcChannelEntry entry;
827 SILC_LOG_DEBUG(("Start"));
829 if (!silc_idcache_find_by_id_one(conn->channel_cache, channel_id,
833 entry = (SilcChannelEntry)id_cache->context;
835 SILC_LOG_DEBUG(("Found"));
842 SilcClientConnection conn;
843 SilcChannelID *channel_id;
844 SilcGetChannelCallback completion;
846 } *GetChannelByIDInternal;
848 SILC_CLIENT_CMD_FUNC(get_channel_by_id_callback)
850 GetChannelByIDInternal i = (GetChannelByIDInternal)context;
851 SilcChannelEntry entry;
853 SILC_LOG_DEBUG(("Start"));
855 /* Get the channel */
856 entry = silc_client_get_channel_by_id(i->client, i->conn, i->channel_id);
858 i->completion(i->client, i->conn, &entry, 1, i->context);
860 i->completion(i->client, i->conn, NULL, 0, i->context);
863 silc_free(i->channel_id);
867 /* Resolves channel information from the server by the channel ID. */
869 void silc_client_get_channel_by_id_resolve(SilcClient client,
870 SilcClientConnection conn,
871 SilcChannelID *channel_id,
872 SilcGetChannelCallback completion,
876 GetChannelByIDInternal i = silc_calloc(1, sizeof(*i));
878 SILC_LOG_DEBUG(("Start"));
882 i->channel_id = silc_id_dup(channel_id, SILC_ID_CHANNEL);
883 i->completion = completion;
884 i->context = context;
886 /* Register our own command reply for this command */
887 silc_client_command_register(client, SILC_COMMAND_IDENTIFY, NULL, NULL,
888 silc_client_command_reply_identify_i, 0,
891 /* Send the command */
892 idp = silc_id_payload_encode(channel_id, SILC_ID_CHANNEL);
893 silc_client_command_send(client, conn, SILC_COMMAND_IDENTIFY,
895 1, 5, idp->data, idp->len);
896 silc_buffer_free(idp);
898 /* Add pending callback */
899 silc_client_command_pending(conn, SILC_COMMAND_IDENTIFY, conn->cmd_ident,
900 silc_client_command_get_channel_by_id_callback,
904 /* Finds entry for server by the server name. */
906 SilcServerEntry silc_client_get_server(SilcClient client,
907 SilcClientConnection conn,
910 SilcIDCacheEntry id_cache;
911 SilcServerEntry entry;
913 SILC_LOG_DEBUG(("Start"));
915 if (!silc_idcache_find_by_name_one(conn->server_cache, server_name,
919 entry = (SilcServerEntry)id_cache->context;
924 /* Finds entry for server by the server ID. */
926 SilcServerEntry silc_client_get_server_by_id(SilcClient client,
927 SilcClientConnection conn,
928 SilcServerID *server_id)
930 SilcIDCacheEntry id_cache;
931 SilcServerEntry entry;
933 SILC_LOG_DEBUG(("Start"));
935 if (!silc_idcache_find_by_id_one(conn->server_cache, (void *)server_id,
939 entry = (SilcServerEntry)id_cache->context;
944 /* Removes server from the cache by the server entry. */
946 bool silc_client_del_server(SilcClient client, SilcClientConnection conn,
947 SilcServerEntry server)
949 bool ret = silc_idcache_del_by_context(conn->server_cache, server);
950 silc_free(server->server_name);
951 silc_free(server->server_info);
952 silc_free(server->server_id);
957 /* Formats the nickname of the client specified by the `client_entry'.
958 If the format is specified by the application this will format the
959 nickname and replace the old nickname in the client entry. If the
960 format string is not specified then this function has no effect. */
962 void silc_client_nickname_format(SilcClient client,
963 SilcClientConnection conn,
964 SilcClientEntry client_entry)
967 char *newnick = NULL;
969 SilcClientEntry *clients;
970 SilcUInt32 clients_count = 0;
971 SilcClientEntry unformatted = NULL;
973 SILC_LOG_DEBUG(("Start"));
975 if (!client->internal->params->nickname_format[0])
978 if (!client_entry->nickname)
981 /* Get all clients with same nickname. Do not perform the formatting
982 if there aren't any clients with same nickname unless the application
983 is forcing us to do so. */
984 clients = silc_client_get_clients_local(client, conn,
985 client_entry->nickname, NULL,
987 if (!clients && !client->internal->params->nickname_force_format)
991 for (i = 0; i < clients_count; i++)
992 if (clients[i]->valid && clients[i] != client_entry)
997 cp = client->internal->params->nickname_format;
1007 if (!client_entry->nickname)
1009 len = strlen(client_entry->nickname);
1010 newnick = silc_realloc(newnick, sizeof(*newnick) * (off + len));
1011 memcpy(&newnick[off], client_entry->nickname, len);
1015 /* Stripped hostname */
1016 if (!client_entry->hostname)
1018 len = strcspn(client_entry->hostname, ".");
1019 newnick = silc_realloc(newnick, sizeof(*newnick) * (off + len));
1020 memcpy(&newnick[off], client_entry->hostname, len);
1025 if (!client_entry->hostname)
1027 len = strlen(client_entry->hostname);
1028 newnick = silc_realloc(newnick, sizeof(*newnick) * (off + len));
1029 memcpy(&newnick[off], client_entry->hostname, len);
1033 /* Stripped server name */
1034 if (!client_entry->server)
1036 len = strcspn(client_entry->server, ".");
1037 newnick = silc_realloc(newnick, sizeof(*newnick) * (off + len));
1038 memcpy(&newnick[off], client_entry->server, len);
1042 /* Full server name */
1043 if (!client_entry->server)
1045 len = strlen(client_entry->server);
1046 newnick = silc_realloc(newnick, sizeof(*newnick) * (off + len));
1047 memcpy(&newnick[off], client_entry->server, len);
1051 /* Ascending number */
1056 if (clients_count == 1) {
1057 unformatted = clients[0];
1061 for (i = 0; i < clients_count; i++) {
1062 if (!strncasecmp(clients[i]->nickname, client_entry->nickname,
1063 strlen(clients[i]->nickname)))
1064 unformatted = clients[i];
1065 if (strncasecmp(clients[i]->nickname, newnick, off))
1067 if (strlen(clients[i]->nickname) <= off)
1069 num = atoi(&clients[i]->nickname[off]);
1074 memset(tmp, 0, sizeof(tmp));
1075 snprintf(tmp, sizeof(tmp) - 1, "%d", ++max);
1077 newnick = silc_realloc(newnick, sizeof(*newnick) * (off + len));
1078 memcpy(&newnick[off], tmp, len);
1083 /* Some other character in the string */
1084 newnick = silc_realloc(newnick, sizeof(*newnick) * (off + 1));
1085 memcpy(&newnick[off], cp, 1);
1093 newnick = silc_realloc(newnick, sizeof(*newnick) * (off + 1));
1096 /* If we are changing nickname of our local entry we'll enforce
1097 that we will always get the unformatted nickname. Give our
1098 format number to the one that is not formatted now. */
1099 if (unformatted && client_entry == conn->local_entry)
1100 client_entry = unformatted;
1102 silc_free(client_entry->nickname);
1103 client_entry->nickname = newnick;