+typedef struct {
+ SilcClient client;
+ SilcClientConnection conn;
+ unsigned int list_count;
+ SilcBuffer client_id_list;
+ SilcGetClientCallback completion;
+ void *context;
+ int found;
+} *GetClientsByListInternal;
+
+SILC_CLIENT_CMD_FUNC(get_clients_list_callback)
+{
+ GetClientsByListInternal i = (GetClientsByListInternal)context;
+ SilcIDCacheEntry id_cache = NULL;
+ SilcBuffer client_id_list = i->client_id_list;
+ SilcClientEntry *clients = NULL;
+ unsigned int clients_count = 0;
+ int c;
+
+ for (c = 0; c < i->list_count; c++) {
+ unsigned short idp_len;
+ SilcClientID *client_id;
+
+ /* Get Client ID */
+ SILC_GET16_MSB(idp_len, client_id_list->data + 2);
+ idp_len += 4;
+ client_id = silc_id_payload_parse_id(client_id_list->data, idp_len);
+ if (!client_id)
+ continue;
+
+ /* Get the client entry */
+ if (silc_idcache_find_by_id_one(i->conn->client_cache, (void *)client_id,
+ SILC_ID_CLIENT, &id_cache)) {
+ clients = silc_realloc(clients, sizeof(*clients) *
+ (clients_count + 1));
+ clients[clients_count] = (SilcClientEntry)id_cache->context;
+ clients_count++;
+ i->found = TRUE;
+ }
+
+ silc_free(client_id);
+ silc_buffer_pull(client_id_list, idp_len);
+ }
+
+ if (i->found) {
+ i->completion(i->client, i->conn, clients, clients_count, i->context);
+ silc_free(clients);
+ }
+}
+
+static void silc_client_get_clients_list_destructor(void *context)
+{
+ GetClientsByListInternal i = (GetClientsByListInternal)context;
+
+ if (i->found == FALSE)
+ i->completion(i->client, i->conn, NULL, 0, i->context);
+
+ if (i->client_id_list)
+ silc_buffer_free(i->client_id_list);
+ silc_free(i);
+}
+
+/* Gets client entries by the list of client ID's `client_id_list'. This
+ always resolves those client ID's it does not know yet from the server
+ so this function might take a while. The `client_id_list' is a list
+ of ID Payloads added one after other. JOIN command reply and USERS
+ command reply for example returns this sort of list. The `completion'
+ will be called after the entries are available. */
+
+void silc_client_get_clients_by_list(SilcClient client,
+ SilcClientConnection conn,
+ unsigned int list_count,
+ SilcBuffer client_id_list,
+ SilcGetClientCallback completion,
+ void *context)
+{
+ SilcIDCacheEntry id_cache = NULL;
+ int i;
+ unsigned char **res_argv = NULL;
+ unsigned int *res_argv_lens = NULL, *res_argv_types = NULL, res_argc = 0;
+ GetClientsByListInternal in;
+
+ in = silc_calloc(1, sizeof(*in));
+ in->client = client;
+ in->conn = conn;
+ in->list_count = list_count;
+ in->client_id_list = silc_buffer_copy(client_id_list);
+ in->completion = completion;
+ in->context = context;
+
+ for (i = 0; i < list_count; i++) {
+ unsigned short idp_len;
+ SilcClientID *client_id;
+ SilcClientEntry entry;
+
+ /* Get Client ID */
+ SILC_GET16_MSB(idp_len, client_id_list->data + 2);
+ idp_len += 4;
+ client_id = silc_id_payload_parse_id(client_id_list->data, idp_len);
+ if (!client_id)
+ continue;
+
+ /* Check if we have this client cached already. */
+ id_cache = NULL;
+ silc_idcache_find_by_id_one(conn->client_cache, (void *)client_id,
+ SILC_ID_CLIENT, &id_cache);
+
+ /* If we don't have the entry or it has incomplete info, then resolve
+ it from the server. */
+ entry = id_cache ? (SilcClientEntry)id_cache->context : NULL;
+ if (!id_cache || !entry->nickname) {
+ /* No we don't have it, query it from the server. Assemble argument
+ table that will be sent fr the IDENTIFY command later. */
+ res_argv = silc_realloc(res_argv, sizeof(*res_argv) *
+ (res_argc + 1));
+ res_argv_lens = silc_realloc(res_argv_lens, sizeof(*res_argv_lens) *
+ (res_argc + 1));
+ res_argv_types = silc_realloc(res_argv_types, sizeof(*res_argv_types) *
+ (res_argc + 1));
+ res_argv[res_argc] = client_id_list->data;
+ res_argv_lens[res_argc] = idp_len;
+ res_argv_types[res_argc] = res_argc + 3;
+ res_argc++;
+ }
+
+ silc_free(client_id);
+ silc_buffer_pull(client_id_list, idp_len);
+ }
+ silc_buffer_push(client_id_list, client_id_list->data -
+ client_id_list->head);
+
+ /* Query the client information from server if the list included clients
+ that we don't know about. */
+ if (res_argc) {
+ SilcBuffer res_cmd;
+
+ /* Send the IDENTIFY command to server */
+ res_cmd = silc_command_payload_encode(SILC_COMMAND_IDENTIFY,
+ res_argc, res_argv, res_argv_lens,
+ res_argv_types, ++conn->cmd_ident);
+ silc_client_packet_send(client, conn->sock, SILC_PACKET_COMMAND,
+ NULL, 0, NULL, NULL, res_cmd->data, res_cmd->len,
+ TRUE);
+
+ silc_client_command_pending(conn, SILC_COMMAND_IDENTIFY,
+ conn->cmd_ident,
+ silc_client_get_clients_list_destructor,
+ silc_client_command_get_clients_list_callback,
+ (void *)in);
+
+ silc_buffer_free(res_cmd);
+ silc_free(res_argv);
+ silc_free(res_argv_lens);
+ silc_free(res_argv_types);
+ return;
+ }
+
+ /* We have the clients in cache, get them and call the completion */
+ silc_client_command_get_clients_list_callback((void *)in);
+}
+