Merged silc_1_0_branch to trunk.
[silc.git] / apps / silcd / command.c
index 086836c5645b65fc17cd9b6e1a8574d3d001f671..0d594b9d9891049af8823d33408054cd9316dc73 100644 (file)
@@ -4,13 +4,12 @@
 
   Author: Pekka Riikonen <priikone@silcnet.org>
 
-  Copyright (C) 1997 - 2002 Pekka Riikonen
+  Copyright (C) 1997 - 2003 Pekka Riikonen
 
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
-  the Free Software Foundation; either version 2 of the License, or
-  (at your option) any later version.
-  
+  the Free Software Foundation; version 2 of the License.
+
   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
@@ -26,12 +25,12 @@ static int silc_server_is_registered(SilcServer server,
                                     SilcSocketConnection sock,
                                     SilcServerCommandContext cmd,
                                     SilcCommand command);
-static void 
+static void
 silc_server_command_send_status_reply(SilcServerCommandContext cmd,
                                      SilcCommand command,
                                      SilcStatus status,
                                      SilcStatus error);
-static void 
+static void
 silc_server_command_send_status_data(SilcServerCommandContext cmd,
                                     SilcCommand command,
                                     SilcStatus status,
@@ -76,11 +75,11 @@ SilcServerCommand silc_command_list[] =
   SILC_SERVER_CMD(users, USERS, SILC_CF_LAG | SILC_CF_REG),
   SILC_SERVER_CMD(getkey, GETKEY, SILC_CF_LAG | SILC_CF_REG),
 
-  SILC_SERVER_CMD(connect, PRIV_CONNECT, 
+  SILC_SERVER_CMD(connect, PRIV_CONNECT,
                  SILC_CF_LAG | SILC_CF_REG | SILC_CF_OPER),
   SILC_SERVER_CMD(close, PRIV_CLOSE,
                  SILC_CF_LAG | SILC_CF_REG | SILC_CF_OPER),
-  SILC_SERVER_CMD(shutdown, PRIV_SHUTDOWN, SILC_CF_LAG | SILC_CF_REG | 
+  SILC_SERVER_CMD(shutdown, PRIV_SHUTDOWN, SILC_CF_LAG | SILC_CF_REG |
                  SILC_CF_OPER),
 
   { NULL, 0 },
@@ -89,7 +88,7 @@ SilcServerCommand silc_command_list[] =
 /* Performs several checks to the command. It first checks whether this
    command was called as pending command callback. If it was then it checks
    whether error occurred in the command reply where the pending command
-   callback was called. 
+   callback was called.
 
    It also checks that the requested command includes correct amount
    of arguments. */
@@ -161,6 +160,7 @@ SILC_TASK_CALLBACK(silc_server_command_process_timeout)
     SILC_LOG_DEBUG(("Client entry is invalid"));
     silc_server_command_free(timeout->ctx);
     silc_free(timeout);
+    return;
   }
 
   /* Update access time */
@@ -170,9 +170,9 @@ SILC_TASK_CALLBACK(silc_server_command_process_timeout)
     SILC_LOG_DEBUG(("Calling %s command",
                    silc_get_command_name(timeout->cmd->cmd)));
     timeout->cmd->cb(timeout->ctx, NULL);
-  } else if (silc_server_is_registered(timeout->ctx->server, 
-                                      timeout->ctx->sock, 
-                                      timeout->ctx, 
+  } else if (silc_server_is_registered(timeout->ctx->server,
+                                      timeout->ctx->sock,
+                                      timeout->ctx,
                                       timeout->cmd->cmd)) {
     SILC_LOG_DEBUG(("Calling %s command",
                    silc_get_command_name(timeout->cmd->cmd)));
@@ -201,7 +201,7 @@ void silc_server_command_process(SilcServer server,
   ctx->server = server;
   ctx->sock = silc_socket_dup(sock);
   ctx->packet = silc_packet_context_dup(packet); /* Save original packet */
-  
+
   /* Parse the command payload in the packet */
   ctx->payload = silc_command_payload_parse(packet->buffer->data,
                                            packet->buffer->len);
@@ -240,6 +240,7 @@ void silc_server_command_process(SilcServer server,
     if (!client) {
       SILC_LOG_DEBUG(("Client entry is invalid"));
       silc_server_command_free(ctx);
+      return;
     }
 
     timeout = silc_calloc(1, sizeof(*timeout));
@@ -259,14 +260,14 @@ void silc_server_command_process(SilcServer server,
 
     if (!fast && ((cmd->flags & SILC_CF_LAG_STRICT) ||
                  (client->fast_command > 5 && cmd->flags & SILC_CF_LAG)))
-      silc_schedule_task_add(server->schedule, sock->sock, 
+      silc_schedule_task_add(server->schedule, sock->sock,
                             silc_server_command_process_timeout, timeout,
                             (client->fast_command < 3 ? 0 :
                              2 - (time(NULL) - client->last_command)),
                             (client->fast_command < 3 ? 200000 : 0),
                             SILC_TASK_TIMEOUT, SILC_TASK_PRI_NORMAL);
     else
-      silc_schedule_task_add(server->schedule, sock->sock, 
+      silc_schedule_task_add(server->schedule, sock->sock,
                             silc_server_command_process_timeout, timeout,
                             0, 1, SILC_TASK_TIMEOUT, SILC_TASK_PRI_NORMAL);
     return;
@@ -316,7 +317,7 @@ void silc_server_command_free(SilcServerCommandContext ctx)
 /* Duplicate Command Context by adding reference counter. The context won't
    be free'd untill it hits zero. */
 
-SilcServerCommandContext 
+SilcServerCommandContext
 silc_server_command_dup(SilcServerCommandContext ctx)
 {
   ctx->users++;
@@ -325,6 +326,47 @@ silc_server_command_dup(SilcServerCommandContext ctx)
   return ctx;
 }
 
+/* Timeout for pending command.  If reply to pending command never arrives
+   this is called to free resources. */
+
+SILC_TASK_CALLBACK(silc_server_command_pending_timeout)
+{
+  SilcServer server = app_context;
+  SilcServerCommandPending *reply = context;
+  SilcServerCommandReplyContext cmdr;
+  SilcBuffer tmpreply;
+  int i;
+
+  SILC_LOG_DEBUG(("Timeout pending command"));
+
+  /* Allocate temporary and bogus command reply context */
+  cmdr = silc_calloc(1, sizeof(*cmdr));
+  cmdr->server = server;
+  cmdr->ident = reply->ident;
+
+  /* Check for pending commands and mark to be exeucted */
+  cmdr->callbacks =
+    silc_server_command_pending_check(server, reply->reply_cmd,
+                                     reply->ident, &cmdr->callbacks_count);
+
+  /* Create bogus command reply with an error inside */
+  tmpreply =
+    silc_command_reply_payload_encode_va(reply->reply_cmd ? reply->reply_cmd :
+                                        SILC_COMMAND_RESERVED,
+                                        SILC_STATUS_ERR_TIMEDOUT, 0,
+                                        reply->ident, 0);
+  cmdr->payload = silc_command_payload_parse(tmpreply->data, tmpreply->len);
+  silc_buffer_free(tmpreply);
+
+  /* Call all callbacks. Same as SILC_SERVER_PENDING_EXEC macro. */
+  for (i = 0; i < cmdr->callbacks_count; i++)
+    if (cmdr->callbacks[i].callback)
+      (*cmdr->callbacks[i].callback)(cmdr->callbacks[i].context, cmdr);
+
+  silc_server_command_pending_del(server, reply->reply_cmd, reply->ident);
+  silc_server_command_reply_free(cmdr);
+}
+
 /* Add new pending command to be executed when reply to a command has been
    received. The `reply_cmd' is the command that will call the `callback'
    with `context' when reply has been received.  It can be SILC_COMMAND_NONE
@@ -339,6 +381,20 @@ bool silc_server_command_pending(SilcServer server,
                                 SilcUInt16 ident,
                                 SilcCommandCb callback,
                                 void *context)
+{
+  return silc_server_command_pending_timed(server, reply_cmd, ident, callback,
+                                          context, 0);
+}
+
+/* Same as silc_server_command_pending with specific timeout for pending
+   commands.  If the `timeout' is zero default timeout is used. */
+
+bool silc_server_command_pending_timed(SilcServer server,
+                                      SilcCommand reply_cmd,
+                                      SilcUInt16 ident,
+                                      SilcCommandCb callback,
+                                      void *context,
+                                      SilcUInt16 timeout)
 {
   SilcServerCommandPending *reply;
 
@@ -357,6 +413,11 @@ bool silc_server_command_pending(SilcServer server,
   reply->ident = ident;
   reply->context = context;
   reply->callback = callback;
+  reply->timeout =
+    silc_schedule_task_add(server->schedule, 0,
+                          silc_server_command_pending_timeout, reply,
+                          timeout ? timeout : 10, 0,
+                          SILC_TASK_TIMEOUT, SILC_TASK_PRI_LOW);
   silc_dlist_add(server->pending_commands, reply);
 
   return TRUE;
@@ -376,1701 +437,175 @@ void silc_server_command_pending_del(SilcServer server,
                                        r->reply_check))
         && r->ident == ident) {
       silc_dlist_del(server->pending_commands, r);
+      if (r->timeout)
+       silc_schedule_task_del(server->schedule, r->timeout);
       silc_free(r);
     }
   }
 }
 
-/* Checks for pending commands and marks callbacks to be called from
-   the command reply function. Returns TRUE if there were pending command. */
-
-SilcServerCommandPendingCallbacks
-silc_server_command_pending_check(SilcServer server,
-                                 SilcServerCommandReplyContext ctx,
-                                 SilcCommand command, 
-                                 SilcUInt16 ident,
-                                 SilcUInt32 *callbacks_count)
-{
-  SilcServerCommandPending *r;
-  SilcServerCommandPendingCallbacks callbacks = NULL;
-  int i = 0;
-
-  silc_dlist_start(server->pending_commands);
-  while ((r = silc_dlist_get(server->pending_commands)) != SILC_LIST_END) {
-    if ((r->reply_cmd == command || r->reply_cmd == SILC_COMMAND_NONE)
-       && r->ident == ident) {
-      callbacks = silc_realloc(callbacks, sizeof(*callbacks) * (i + 1));
-      callbacks[i].context = r->context;
-      callbacks[i].callback = r->callback;
-      r->reply_check = TRUE;
-      ctx->ident = ident;
-      i++;
-    }
-  }
-
-  *callbacks_count = i;
-  return callbacks;
-}
-
-/* Sends simple status message as command reply packet */
-
-static void 
-silc_server_command_send_status_reply(SilcServerCommandContext cmd,
-                                     SilcCommand command,
-                                     SilcStatus status,
-                                     SilcStatus error)
-{
-  SilcBuffer buffer;
-
-  SILC_LOG_DEBUG(("Sending command status %d", status));
-
-  buffer = 
-    silc_command_reply_payload_encode_va(command, status, error,
-                                        silc_command_get_ident(cmd->payload),
-                                        0);
-  silc_server_packet_send(cmd->server, cmd->sock,
-                         SILC_PACKET_COMMAND_REPLY, 0, 
-                         buffer->data, buffer->len, FALSE);
-  silc_buffer_free(buffer);
-}
-
-/* Sends command status reply with one extra argument. The argument
-   type must be sent as argument. */
-
-static void 
-silc_server_command_send_status_data(SilcServerCommandContext cmd,
-                                    SilcCommand command,
-                                    SilcStatus status,
-                                    SilcStatus error,
-                                    SilcUInt32 arg_type,
-                                    const unsigned char *arg,
-                                    SilcUInt32 arg_len)
-{
-  SilcBuffer buffer;
-
-  SILC_LOG_DEBUG(("Sending command status %d", status));
-
-  buffer = 
-    silc_command_reply_payload_encode_va(command, status, 0,
-                                        silc_command_get_ident(cmd->payload),
-                                        1, arg_type, arg, arg_len);
-  silc_server_packet_send(cmd->server, cmd->sock,
-                         SILC_PACKET_COMMAND_REPLY, 0, 
-                         buffer->data, buffer->len, FALSE);
-  silc_buffer_free(buffer);
-}
-
-/* This function can be called to check whether in the command reply
-   an error occurred. This function has no effect if this is called
-   when the command function was not called as pending command callback. 
-   This returns TRUE if error had occurred. */
-
-static bool
-silc_server_command_pending_error_check(SilcServerCommandContext cmd,
-                                       SilcServerCommandReplyContext cmdr,
-                                       SilcCommand command)
-{
-  if (!cmd->pending || !cmdr)
-    return FALSE;
-
-  if (!silc_command_get_status(cmdr->payload, NULL, NULL)) {
-    SilcBuffer buffer;
-
-    /* Send the same command reply payload */
-    silc_command_set_ident(cmdr->payload, 
-                          silc_command_get_ident(cmd->payload));
-    buffer = silc_command_payload_encode_payload(cmdr->payload);
-    silc_server_packet_send(cmd->server, cmd->sock,
-                           SILC_PACKET_COMMAND_REPLY, 0, 
-                           buffer->data, buffer->len, FALSE);
-    silc_buffer_free(buffer);
-    return TRUE;
-  }
-
-  return FALSE;
-}
-
-/******************************************************************************
-
-                              WHOIS Functions
-
-******************************************************************************/
-
-typedef struct {
-  void *id;
-  SilcIdType id_type;
-  SilcUInt32 index;
-  SilcStatus error;
-} *ResolveError;
-
-#define ADD_ERROR(errptr, errptr_count, _id, _id_type, _index, _status)        \
-do {                                                                   \
-  errptr = silc_realloc(errptr, sizeof(*errptr) * (errptr_count + 1)); \
-  if (!errptr)                                                         \
-    return FALSE;                                                      \
-  errptr[errptr_count].id = _id;                                       \
-  errptr[errptr_count].id_type = _id_type;                             \
-  errptr[errptr_count].index = _index;                                 \
-  errptr[errptr_count].error = _status;                                        \
-  errptr_count++;                                                      \
-} while(0)
-
-static int
-silc_server_command_whois_parse(SilcServerCommandContext cmd,
-                               SilcClientID ***client_id,
-                               SilcUInt32 *client_id_count,
-                               char **nickname,
-                               char **server_name,
-                               int *count,
-                               ResolveError *error_client,
-                               SilcUInt32 *error_client_count)
-{
-  unsigned char *tmp;
-  SilcUInt32 len;
-  SilcUInt32 argc = silc_argument_get_arg_num(cmd->args);
-  void *id;
-  int i, k;
-
-  /* If client ID is in the command it must be used instead of nickname */
-  tmp = silc_argument_get_arg_type(cmd->args, 4, &len);
-  if (!tmp) {
-    /* No ID, get the nickname@server string and parse it. */
-    tmp = silc_argument_get_arg_type(cmd->args, 1, NULL);
-    if (tmp) {
-      silc_parse_userfqdn(tmp, nickname, server_name);
-    } else {
-      silc_server_command_send_status_reply(cmd, SILC_COMMAND_WHOIS,
-                                           SILC_STATUS_ERR_BAD_NICKNAME, 0);
-      return FALSE;
-    }
-  } else {
-    /* Command includes ID, we must use that.  Take all ID's from the 
-       command packet */
-    for (k = 0, i = 0; i < argc; i++) {
-      tmp = silc_argument_get_arg_type(cmd->args, i + 4, &len);
-      if (!tmp)
-       continue;
-      id = silc_id_payload_parse_id(tmp, len, NULL);
-      if (id) {
-       *client_id = silc_realloc(*client_id, sizeof(**client_id) *
-                                 (*client_id_count + 1));
-       (*client_id)[k] = id;
-       (*client_id_count)++;
-       k++;
-      } else {
-       ADD_ERROR((*error_client), (*error_client_count), NULL, 0, i + 4,
-                 SILC_STATUS_ERR_BAD_CLIENT_ID);
-      }
-    }
-  }
-
-  /* Get the max count of reply messages allowed */
-  tmp = silc_argument_get_arg_type(cmd->args, 2, NULL);
-  if (tmp)
-    SILC_GET32_MSB(*count, tmp);
-  else
-    *count = 0;
-
-  return TRUE;
-}
-
-/* Resolve context used by both WHOIS and IDENTIFY commands */
-typedef struct {
-  SilcServerEntry router;
-  SilcUInt16 ident;
-  unsigned char **res_argv;
-  SilcUInt32 *res_argv_lens;
-  SilcUInt32 *res_argv_types;
-  SilcUInt32 res_argc;
-} *SilcServerResolveContext;
-
-static bool
-silc_server_command_whois_check(SilcServerCommandContext cmd,
-                               SilcClientEntry *clients,
-                               SilcUInt32 clients_count)
-{
-  SilcServer server = cmd->server;
-  SilcClientEntry entry;
-  SilcServerResolveContext resolve = NULL, r = NULL;
-  SilcUInt32 resolve_count = 0;
-  int i, k;
-  bool no_res = TRUE;
-
-  SILC_LOG_DEBUG(("Start"));
-
-  for (i = 0; i < clients_count; i++) {
-    entry = clients[i];
-    if (!entry)
-      continue;
-
-    if ((entry->nickname && entry->username && entry->userinfo) ||
-       !(entry->data.status & SILC_IDLIST_STATUS_REGISTERED)) {
-      if (!entry->router)
-       continue;
-
-      /* If we are normal server, and we've not resolved this client from
-        router and it is global client, we'll check whether it is on some
-        channel.  If not then we cannot be sure about its validity, and
-        we'll resolve it from router. */
-      if (cmd->server->server_type != SILC_SERVER || cmd->pending ||
-         entry->connection || silc_hash_table_count(entry->channels))
-       continue;
-    }
-
-    /* We need to resolve this entry since it is not complete */
-
-    if (!cmd->pending && entry->data.status & SILC_IDLIST_STATUS_RESOLVING) {
-      /* The entry is being resolved (and we are not the resolver) so attach
-        to the command reply and we're done with this one. */
-      silc_server_command_pending(server, SILC_COMMAND_NONE, 
-                                 entry->resolve_cmd_ident,
-                                 silc_server_command_whois,
-                                 silc_server_command_dup(cmd));
-      no_res = FALSE;
-    } else {
-      if (entry->data.status & SILC_IDLIST_STATUS_RESOLVING) {
-       /* We've resolved this and it still is not ready.  We'll return
-          and are that this will be handled again after it is resolved. */
-       for (i = 0; i < resolve_count; i++) {
-         for (k = 0; k < r->res_argc; k++)
-           silc_free(r->res_argv[k]);
-         silc_free(r->res_argv);
-         silc_free(r->res_argv_lens);
-         silc_free(r->res_argv_types);
-       }
-       silc_free(resolve);
-       return FALSE;
-      } else {
-       /* We'll resolve this client */
-       SilcBuffer idp;
-
-       r = NULL;
-       for (k = 0; k < resolve_count; k++) {
-         if (resolve[k].router == entry->router) {
-           r = &resolve[k];
-           break;
-         }
-       }
-
-       if (!r) {
-         resolve = silc_realloc(resolve, sizeof(*resolve) * 
-                                (resolve_count + 1));
-         r = &resolve[resolve_count];
-         memset(r, 0, sizeof(*r));
-         r->router = entry->router;
-         r->ident = ++server->cmd_ident;
-         resolve_count++;
-       }
-
-       r->res_argv = silc_realloc(r->res_argv, sizeof(*r->res_argv) *
-                                  (r->res_argc + 1));
-       r->res_argv_lens = silc_realloc(r->res_argv_lens, 
-                                       sizeof(*r->res_argv_lens) *
-                                       (r->res_argc + 1));
-       r->res_argv_types = silc_realloc(r->res_argv_types, 
-                                        sizeof(*r->res_argv_types) *
-                                        (r->res_argc + 1));
-       idp = silc_id_payload_encode(entry->id, SILC_ID_CLIENT);
-       r->res_argv[r->res_argc] = silc_calloc(idp->len, 
-                                              sizeof(**r->res_argv));
-       memcpy(r->res_argv[r->res_argc], idp->data, idp->len);
-       r->res_argv_lens[r->res_argc] = idp->len;
-       r->res_argv_types[r->res_argc] = r->res_argc + 4;
-       r->res_argc++;
-       silc_buffer_free(idp);
-
-       entry->resolve_cmd_ident = r->ident;
-       entry->data.status |= SILC_IDLIST_STATUS_RESOLVING;
-       entry->data.status &= ~SILC_IDLIST_STATUS_RESOLVED;
-      }
-    }
-  }
-
-  /* Do the resolving */
-  for (i = 0; i < resolve_count; i++) {
-    SilcBuffer res_cmd;
-
-    r = &resolve[i];
-
-    /* Send WHOIS request. We send WHOIS since we're doing the requesting
-       now anyway so make it a good one. */
-    res_cmd = silc_command_payload_encode(SILC_COMMAND_WHOIS,
-                                         r->res_argc, r->res_argv, 
-                                         r->res_argv_lens,
-                                         r->res_argv_types, 
-                                         r->ident);
-    silc_server_packet_send(server, r->router->connection,
-                           SILC_PACKET_COMMAND, cmd->packet->flags,
-                           res_cmd->data, res_cmd->len, FALSE);
-
-    /* Reprocess this packet after received reply */
-    silc_server_command_pending(server, SILC_COMMAND_WHOIS, 
-                               r->ident,
-                               silc_server_command_whois,
-                               silc_server_command_dup(cmd));
-    cmd->pending = TRUE;
-
-    silc_buffer_free(res_cmd);
-    for (k = 0; k < r->res_argc; k++)
-      silc_free(r->res_argv[k]);
-    silc_free(r->res_argv);
-    silc_free(r->res_argv_lens);
-    silc_free(r->res_argv_types);
-    no_res = FALSE;
-  }
-  silc_free(resolve);
-
-  return no_res;
-}
-
-static void
-silc_server_command_whois_send_reply(SilcServerCommandContext cmd,
-                                    SilcClientEntry *clients,
-                                    SilcUInt32 clients_count, 
-                                    ResolveError errors,
-                                    SilcUInt32 errors_count,
-                                    int count, const char *nickname,
-                                    SilcClientID **client_ids)
-{
-  SilcServer server = cmd->server;
-  char *tmp;
-  int i, k, valid_count = clients_count;
-  SilcUInt32 len;
-  SilcBuffer packet, idp, channels, umode_list = NULL;
-  SilcClientEntry entry;
-  SilcStatus status;
-  SilcUInt16 ident = silc_command_get_ident(cmd->payload);
-  char nh[256], uh[256];
-  unsigned char idle[4], mode[4];
-  unsigned char *fingerprint, fempty[20];
-  SilcSocketConnection hsock;
-
-  if (nickname) {
-    /* Process only valid clients and ignore those that are not registered. 
-       This is checked with nickname only because when resolved client IDs
-       we check that they are registered earlier. */
-    valid_count = 0;
-    for (i = 0; i < clients_count; i++)
-      if (clients[i]->data.status & SILC_IDLIST_STATUS_REGISTERED)
-       valid_count++;
-      else
-       clients[i] = NULL;
-
-    if (!valid_count) {
-      silc_server_command_send_status_data(cmd, SILC_COMMAND_WHOIS,
-                                          SILC_STATUS_ERR_NO_SUCH_NICK, 0,
-                                          3, nickname, strlen(nickname));
-      return;
-    }
-  }
-
-  memset(fempty, 0, sizeof(fempty));
-
-  /* Start processing found clients. */
-  status = SILC_STATUS_OK;
-  if (valid_count > 1)
-    status = SILC_STATUS_LIST_START;
-
-  for (i = 0, k = 0; i < clients_count; i++) {
-    entry = clients[i];
-    if (!entry)
-      continue;
-
-    if (k >= 1)
-      status = SILC_STATUS_LIST_ITEM;
-    if (valid_count > 1 && k == valid_count - 1 && !errors_count)
-      status = SILC_STATUS_LIST_END;
-    if (count && k - 1 == count)
-      status = SILC_STATUS_LIST_END;
-
-    /* Send WHOIS reply */
-    idp = silc_id_payload_encode(entry->id, SILC_ID_CLIENT);
-    tmp = silc_argument_get_first_arg(cmd->args, NULL);
-    
-    memset(uh, 0, sizeof(uh));
-    memset(nh, 0, sizeof(nh));
-    memset(idle, 0, sizeof(idle));
-    
-    strncat(nh, entry->nickname, strlen(entry->nickname));
-    if (!strchr(entry->nickname, '@')) {
-      strncat(nh, "@", 1);
-      if (entry->servername) {
-       strncat(nh, entry->servername, strlen(entry->servername));
-      } else {
-       len = entry->router ? strlen(entry->router->server_name) :
-         strlen(server->server_name);
-       strncat(nh, entry->router ? entry->router->server_name :
-               server->server_name, len);
-      }
-    }
-      
-    strncat(uh, entry->username, strlen(entry->username));
-    if (!strchr(entry->username, '@') && entry->connection) {
-      strncat(uh, "@", 1);
-      hsock = (SilcSocketConnection)entry->connection;
-      len = strlen(hsock->hostname);
-      strncat(uh, hsock->hostname, len);
-    }
-
-    if (cmd->sock->type == SILC_SOCKET_TYPE_CLIENT)
-      channels = silc_server_get_client_channel_list(server, entry, FALSE, 
-                                                    FALSE, &umode_list);
-    else
-      channels = silc_server_get_client_channel_list(server, entry, TRUE, 
-                                                    TRUE, &umode_list);
-
-    if (memcmp(entry->data.fingerprint, fempty, sizeof(fempty)))
-      fingerprint = entry->data.fingerprint;
-    else
-      fingerprint = NULL;
-      
-    SILC_PUT32_MSB(entry->mode, mode);
-    if (entry->connection)
-      SILC_PUT32_MSB((time(NULL) - entry->data.last_receive), idle);
-
-    packet = 
-      silc_command_reply_payload_encode_va(SILC_COMMAND_WHOIS,
-                                          status, 0, ident, 9, 
-                                          2, idp->data, idp->len,
-                                          3, nh, strlen(nh),
-                                          4, uh, strlen(uh),
-                                          5, entry->userinfo, 
-                                          strlen(entry->userinfo),
-                                          6, channels ? channels->data : NULL,
-                                          channels ? channels->len : 0,
-                                          7, mode, 4,
-                                          8, idle, 4,
-                                          9, fingerprint,
-                                          fingerprint ? 20 : 0,
-                                          10, umode_list ? umode_list->data :
-                                          NULL, umode_list ? umode_list->len :
-                                          0);
-
-    silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY,
-                           0, packet->data, packet->len, FALSE);
-    
-    silc_buffer_free(packet);
-    silc_buffer_free(idp);
-    if (channels)
-      silc_buffer_free(channels);
-    if (umode_list) {
-      silc_buffer_free(umode_list);
-      umode_list = NULL;
-    }
-
-    if (status == SILC_STATUS_LIST_END)
-      break;
-    k++;
-  }
-
-  /* Send error replies */
-  if (status == SILC_STATUS_OK && errors_count > 1)
-    status = SILC_STATUS_LIST_START;
-
-  idp = NULL;
-  for (i = 0, k = 0; i < errors_count; i++) {
-    if (errors[i].id) {
-      idp = silc_id_payload_encode(errors[i].id, SILC_ID_CLIENT);
-      tmp = idp->data;
-      len = idp->len;
-    } else {
-      tmp = silc_argument_get_arg_type(cmd->args, errors[i].index, &len);
-    }
-      
-    if (k >= 1)
-      status = SILC_STATUS_LIST_ITEM;
-    if (errors_count > 1 && k == errors_count - 1)
-      status = SILC_STATUS_LIST_END;
-    if (count && k - 1 == count)
-      status = SILC_STATUS_LIST_END;
-      
-    /* Send error */
-    silc_server_command_send_status_data(cmd, SILC_COMMAND_WHOIS,
-                                        (status == SILC_STATUS_OK ?
-                                         errors[i].error : status),
-                                        (status == SILC_STATUS_OK ?
-                                         0 : errors[i].error),
-                                        2, tmp, len);
-    silc_buffer_free(idp);
-    idp = NULL;
-      
-    if (status == SILC_STATUS_LIST_END)
-      break;
-    k++;
-  }
-}
-
-static void 
-silc_server_command_whois_send_router(SilcServerCommandContext cmd)
-{
-  SilcServer server = cmd->server;
-  SilcBuffer tmpbuf;
-  SilcUInt16 old_ident;
-
-  old_ident = silc_command_get_ident(cmd->payload);
-  silc_command_set_ident(cmd->payload, ++server->cmd_ident);
-  tmpbuf = silc_command_payload_encode_payload(cmd->payload);
-
-  /* Send WHOIS command to our router */
-  silc_server_packet_send(server, (SilcSocketConnection)
-                         SILC_PRIMARY_ROUTE(server),
-                         SILC_PACKET_COMMAND, cmd->packet->flags,
-                         tmpbuf->data, tmpbuf->len, TRUE);
-
-  /* Reprocess this packet after received reply from router */
-  silc_server_command_pending(server, SILC_COMMAND_WHOIS, 
-                             silc_command_get_ident(cmd->payload),
-                             silc_server_command_whois,
-                             silc_server_command_dup(cmd));
-  cmd->pending = TRUE;
-  silc_command_set_ident(cmd->payload, old_ident);
-  silc_buffer_free(tmpbuf);
-}
-
-static int
-silc_server_command_whois_process(SilcServerCommandContext cmd)
-{
-  SilcServer server = cmd->server;
-  char *nick = NULL, *server_name = NULL;
-  int count = 0;
-  SilcClientEntry *clients = NULL, entry;
-  SilcClientID **client_id = NULL;
-  SilcUInt32 client_id_count = 0, clients_count = 0, error_client_count = 0;
-  ResolveError error_client = NULL;
-  int i, ret = 0;
-  bool check_global = FALSE;
-
-  /* Parse the whois request */
-  if (!silc_server_command_whois_parse(cmd, &client_id, &client_id_count, 
-                                      &nick, &server_name, &count,
-                                      &error_client, &error_client_count))
-    return 0;
-
-  /* Send the WHOIS request to the router only if it included nickname.
-     Since nicknames can be expanded into many clients we need to send it
-     to router.  If the WHOIS included only client ID's we will check them
-     first locally since we just might have them. */
-  if (nick && !client_id_count && cmd->sock->type == SILC_SOCKET_TYPE_CLIENT &&
-      server->server_type == SILC_SERVER && !cmd->pending &&
-      !server->standalone) {
-    silc_server_command_whois_send_router(cmd);
-    ret = -1;
-    goto out;
-  }
-
-  if (cmd->sock->type == SILC_SOCKET_TYPE_CLIENT)
-    check_global = TRUE;
-  else if (server->server_type != SILC_SERVER)
-    check_global = TRUE;
-
-  /* Get all clients matching that ID or nickname from local list */
-  if (client_id_count) {
-    /* Check all Client ID's received in the command packet */
-    for (i = 0; i < client_id_count; i++) {
-      entry = silc_idlist_find_client_by_id(server->local_list, 
-                                           client_id[i], TRUE, NULL);
-      if (!entry && check_global)
-       entry = silc_idlist_find_client_by_id(server->global_list, 
-                                             client_id[i], TRUE, NULL);
-      if (entry) {
-       clients = silc_realloc(clients, sizeof(*clients) * 
-                              (clients_count + 1));
-       clients[clients_count++] = entry;
-      } else {
-       /* If we are normal server and did not send the request first to router
-          do it now, since we do not have the Client ID information. */
-       if (cmd->sock->type == SILC_SOCKET_TYPE_CLIENT &&
-           server->server_type == SILC_SERVER && !cmd->pending && 
-           !server->standalone) {
-         silc_server_command_whois_send_router(cmd);
-         ret = -1;
-         goto out;
-       }
-
-       ADD_ERROR(error_client, error_client_count, client_id[i], 
-                 SILC_ID_CLIENT, 0, SILC_STATUS_ERR_NO_SUCH_CLIENT_ID);
-      }
-    }
-  } else if (nick) {
-    /* Find by nickname */
-    if (!silc_idlist_get_clients_by_hash(server->local_list, 
-                                        nick, server->md5hash,
-                                        &clients, &clients_count))
-      silc_idlist_get_clients_by_nickname(server->local_list, 
-                                         nick, server_name,
-                                         &clients, &clients_count);
-    if (check_global) {
-      if (!silc_idlist_get_clients_by_hash(server->global_list, 
-                                          nick, server->md5hash,
-                                          &clients, &clients_count))
-       silc_idlist_get_clients_by_nickname(server->global_list, 
-                                           nick, server_name,
-                                           &clients, &clients_count);
-    }
-  }
-  
-  if (!clients && (client_id_count || nick)) {
-    /* If we are normal server and did not send the request first to router
-       do it now, since we do not have the information. */
-    if (cmd->sock->type == SILC_SOCKET_TYPE_CLIENT &&
-       server->server_type == SILC_SERVER && !cmd->pending && 
-       !server->standalone) {
-      silc_server_command_whois_send_router(cmd);
-      ret = -1;
-      goto out;
-    }
-
-    /* Such client(s) really does not exist in the SILC network. */
-    if (!client_id_count)
-      silc_server_command_send_status_data(cmd, SILC_COMMAND_WHOIS,
-                                          SILC_STATUS_ERR_NO_SUCH_NICK, 0,
-                                          3, nick, strlen(nick));
-    else
-      silc_server_command_whois_send_reply(cmd, NULL, 0,
-                                          error_client, error_client_count,
-                                          0, NULL, NULL);
-    goto out;
-  }
-
-  /* Router always finds the client entry if it exists in the SILC network.
-     However, it might be incomplete entry and does not include all the
-     mandatory fields that WHOIS command reply requires. Check for these and
-     make query from the server who owns the client if some fields are 
-     missing. */
-  if (!silc_server_command_whois_check(cmd, clients, clients_count)) {
-    ret = -1;
-    goto out;
-  }
-
-  /* Send the command reply */
-  silc_server_command_whois_send_reply(cmd, clients, clients_count,
-                                      error_client, error_client_count,
-                                      count, nick, client_id);
-
- out:
-  if (client_id_count) {
-    for (i = 0; i < client_id_count; i++)
-      silc_free(client_id[i]);
-    silc_free(client_id);
-  }
-  silc_free(clients);
-  silc_free(error_client);
-  silc_free(nick);
-  silc_free(server_name);
-
-  return ret;
-}
-
-/* Server side of command WHOIS. Processes user's query and sends found 
-   results as command replies back to the client. */
-
-SILC_SERVER_CMD_FUNC(whois)
-{
-  SilcServerCommandContext cmd = (SilcServerCommandContext)context;
-  int ret = 0;
-
-  SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_WHOIS, cmd, 1, 3328);
-
-  ret = silc_server_command_whois_process(cmd);
-  silc_server_command_free(cmd);
-}
-
-/******************************************************************************
-
-                              WHOWAS Functions
-
-******************************************************************************/
-
-static int
-silc_server_command_whowas_parse(SilcServerCommandContext cmd,
-                                char **nickname,
-                                char **server_name,
-                                int *count)
-{
-  unsigned char *tmp;
-  SilcUInt32 len;
-
-  tmp = silc_argument_get_arg_type(cmd->args, 1, &len);
-  if (!tmp) {
-    silc_server_command_send_status_reply(cmd, SILC_COMMAND_WHOWAS,
-                                         SILC_STATUS_ERR_NOT_ENOUGH_PARAMS, 
-                                         0);
-    return FALSE;
-  }
-
-  /* Get the nickname@server string and parse it. */
-  silc_parse_userfqdn(tmp, nickname, server_name);
-
-  /* Get the max count of reply messages allowed */
-  tmp = silc_argument_get_arg_type(cmd->args, 2, NULL);
-  if (tmp)
-    SILC_GET32_MSB(*count, tmp);
-  else
-    *count = 0;
-
-  return TRUE;
-}
-
-static char
-silc_server_command_whowas_check(SilcServerCommandContext cmd,
-                                SilcClientEntry *clients,
-                                SilcUInt32 clients_count)
-{
-  SilcServer server = cmd->server;
-  int i;
-  SilcClientEntry entry;
-
-  for (i = 0; i < clients_count; i++) {
-    entry = clients[i];
-
-    if (!entry->nickname || !entry->username) {
-      SilcBuffer tmpbuf;
-      SilcUInt16 old_ident;
-
-      if (!entry->router)
-       continue;
-      
-      old_ident = silc_command_get_ident(cmd->payload);
-      silc_command_set_ident(cmd->payload, ++server->cmd_ident);
-      tmpbuf = silc_command_payload_encode_payload(cmd->payload);
-
-      /* Send WHOWAS command */
-      silc_server_packet_send(server, entry->router->connection,
-                             SILC_PACKET_COMMAND, cmd->packet->flags,
-                             tmpbuf->data, tmpbuf->len, TRUE);
-      
-      /* Reprocess this packet after received reply */
-      silc_server_command_pending(server, SILC_COMMAND_WHOWAS, 
-                                 silc_command_get_ident(cmd->payload),
-                                 silc_server_command_whowas, 
-                                 silc_server_command_dup(cmd));
-      cmd->pending = TRUE;
-      silc_command_set_ident(cmd->payload, old_ident);
-
-      silc_buffer_free(tmpbuf);
-      return FALSE;
-    }
-  }
-
-  return TRUE;
-}
-
-static void
-silc_server_command_whowas_send_reply(SilcServerCommandContext cmd,
-                                     SilcClientEntry *clients,
-                                     SilcUInt32 clients_count)
-{
-  SilcServer server = cmd->server;
-  char *tmp;
-  int i, k, count = 0, len;
-  SilcBuffer packet, idp;
-  SilcClientEntry entry = NULL;
-  SilcStatus status;
-  SilcUInt16 ident = silc_command_get_ident(cmd->payload);
-  char nh[256], uh[256];
-  int valid_count;
-
-  status = SILC_STATUS_OK;
-
-  /* Process only entries that are not registered anymore. */
-  valid_count = 0;
-  for (i = 0; i < clients_count; i++) {
-    if (clients[i]->data.status & SILC_IDLIST_STATUS_REGISTERED)
-      clients[i] = NULL;
-    else
-      valid_count++;
-  }
-
-  if (!valid_count) {
-    /* No valid entries found at all, just send error */
-    tmp = silc_argument_get_arg_type(cmd->args, 1, NULL);
-    silc_server_command_send_status_data(cmd, SILC_COMMAND_WHOWAS,
-                                        SILC_STATUS_ERR_NO_SUCH_NICK, 0,
-                                        3, tmp, tmp ? strlen(tmp) : 0);
-    return;
-  }
-
-  if (valid_count > 1)
-    status = SILC_STATUS_LIST_START;
-
-  for (i = 0, k = 0; i < clients_count; i++) {
-    entry = clients[i];
-    if (!entry)
-      continue;
-
-    if (k >= 1)
-      status = SILC_STATUS_LIST_ITEM;
-    if (valid_count > 1 && k == valid_count - 1)
-      status = SILC_STATUS_LIST_END;
-    if (count && k - 1 == count)
-      status = SILC_STATUS_LIST_END;
-
-    /* Send WHOWAS reply */
-    idp = silc_id_payload_encode(entry->id, SILC_ID_CLIENT);
-    tmp = silc_argument_get_first_arg(cmd->args, NULL);
-    memset(uh, 0, sizeof(uh));
-    memset(nh, 0, sizeof(nh));
-
-    strncat(nh, entry->nickname, strlen(entry->nickname));
-    if (!strchr(entry->nickname, '@')) {
-      strncat(nh, "@", 1);
-      if (entry->servername) {
-       strncat(nh, entry->servername, strlen(entry->servername));
-      } else {
-       len = entry->router ? strlen(entry->router->server_name) :
-         strlen(server->server_name);
-       strncat(nh, entry->router ? entry->router->server_name :
-               server->server_name, len);
-      }
-    }
-      
-    strncat(uh, entry->username, strlen(entry->username));
-    if (!strchr(entry->username, '@')) {
-      strncat(uh, "@", 1);
-      strcat(uh, "*private*");
-    }
-      
-    packet = 
-      silc_command_reply_payload_encode_va(SILC_COMMAND_WHOWAS,
-                                          status, 0, ident, 4, 
-                                          2, idp->data, idp->len,
-                                          3, nh, strlen(nh),
-                                          4, uh, strlen(uh),
-                                          5, entry->userinfo, 
-                                          entry->userinfo ? 
-                                          strlen(entry->userinfo) : 0);
-    silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY,
-                           0, packet->data, packet->len, FALSE);
-    
-    silc_buffer_free(packet);
-    silc_buffer_free(idp);
-
-    if (status == SILC_STATUS_LIST_END)
-      break;
-    k++;
-  }
-}
-
-static int
-silc_server_command_whowas_process(SilcServerCommandContext cmd)
-{
-  SilcServer server = cmd->server;
-  char *nick = NULL, *server_name = NULL;
-  int count = 0;
-  SilcClientEntry *clients = NULL;
-  SilcUInt32 clients_count = 0;
-  int ret = 0;
-  bool check_global = FALSE;
-
-  /* Protocol dictates that we must always send the received WHOWAS request
-     to our router if we are normal server, so let's do it now unless we
-     are standalone. We will not send any replies to the client until we
-     have received reply from the router. */
-  if (cmd->sock->type == SILC_SOCKET_TYPE_CLIENT &&
-      server->server_type == SILC_SERVER && !cmd->pending && 
-      !server->standalone) {
-    SilcBuffer tmpbuf;
-    SilcUInt16 old_ident;
-
-    old_ident = silc_command_get_ident(cmd->payload);
-    silc_command_set_ident(cmd->payload, ++server->cmd_ident);
-    tmpbuf = silc_command_payload_encode_payload(cmd->payload);
-
-    /* Send WHOWAS command to our router */
-    silc_server_packet_send(server, SILC_PRIMARY_ROUTE(server),
-                           SILC_PACKET_COMMAND, cmd->packet->flags,
-                           tmpbuf->data, tmpbuf->len, TRUE);
-
-    /* Reprocess this packet after received reply from router */
-    silc_server_command_pending(server, SILC_COMMAND_WHOWAS, 
-                               silc_command_get_ident(cmd->payload),
-                               silc_server_command_whowas,
-                               silc_server_command_dup(cmd));
-    cmd->pending = TRUE;
-    silc_command_set_ident(cmd->payload, old_ident);
-
-    silc_buffer_free(tmpbuf);
-    ret = -1;
-    goto out;
-  }
-
-  /* We are ready to process the command request. Let's search for the
-     requested client and send reply to the requesting client. */
-
-  if (cmd->sock->type == SILC_SOCKET_TYPE_CLIENT)
-    check_global = TRUE;
-  else if (server->server_type != SILC_SERVER)
-    check_global = TRUE;
-
-  /* Parse the whowas request */
-  if (!silc_server_command_whowas_parse(cmd, &nick, &server_name, &count))
-    return 0;
-
-  /* Get all clients matching that nickname from local list */
-  if (!silc_idlist_get_clients_by_nickname(server->local_list, 
-                                          nick, server_name,
-                                          &clients, &clients_count))
-    silc_idlist_get_clients_by_hash(server->local_list, 
-                                   nick, server->md5hash,
-                                   &clients, &clients_count);
-  
-  /* Check global list as well */
-  if (check_global) {
-    if (!silc_idlist_get_clients_by_nickname(server->global_list, 
-                                            nick, server_name,
-                                            &clients, &clients_count))
-      silc_idlist_get_clients_by_hash(server->global_list, 
-                                     nick, server->md5hash,
-                                     &clients, &clients_count);
-  }
-  
-  if (!clients) {
-    /* Such a client really does not exist in the SILC network. */
-    silc_server_command_send_status_data(cmd, SILC_COMMAND_WHOWAS,
-                                        SILC_STATUS_ERR_NO_SUCH_NICK, 0,
-                                        3, nick, strlen(nick));
-    goto out;
-  }
-
-  if (!silc_server_command_whowas_check(cmd, clients, clients_count)) {
-    ret = -1;
-    goto out;
-  }
-
-  /* Send the command reply to the client */
-  silc_server_command_whowas_send_reply(cmd, clients, clients_count);
-
- out:
-  silc_free(clients);
-  silc_free(nick);
-  silc_free(server_name);
-  return ret;
-}
-
-/* Server side of command WHOWAS. */
-
-SILC_SERVER_CMD_FUNC(whowas)
-{
-  SilcServerCommandContext cmd = (SilcServerCommandContext)context;
-  int ret = 0;
-
-  SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_WHOWAS, cmd, 1, 2);
-
-  ret = silc_server_command_whowas_process(cmd);
-  silc_server_command_free(cmd);
-}
-
-/******************************************************************************
-
-                              IDENTIFY Functions
-
-******************************************************************************/
-
-static void 
-silc_server_command_identify_send_router(SilcServerCommandContext cmd)
-{
-  SilcServer server = cmd->server;
-  SilcBuffer tmpbuf;
-  SilcUInt16 old_ident;
-
-  old_ident = silc_command_get_ident(cmd->payload);
-  silc_command_set_ident(cmd->payload, ++server->cmd_ident);
-  tmpbuf = silc_command_payload_encode_payload(cmd->payload);
-
-  /* Send IDENTIFY command to our router */
-  silc_server_packet_send(server, (SilcSocketConnection)
-                         SILC_PRIMARY_ROUTE(server),
-                         SILC_PACKET_COMMAND, cmd->packet->flags,
-                         tmpbuf->data, tmpbuf->len, TRUE);
-
-  /* Reprocess this packet after received reply from router */
-  silc_server_command_pending(server, SILC_COMMAND_IDENTIFY, 
-                             silc_command_get_ident(cmd->payload),
-                             silc_server_command_identify,
-                             silc_server_command_dup(cmd));
-  cmd->pending = TRUE;
-  silc_command_set_ident(cmd->payload, old_ident);
-  silc_buffer_free(tmpbuf);
-}
-
-static int
-silc_server_command_identify_parse(SilcServerCommandContext cmd,
-                                  SilcClientEntry **clients,
-                                  SilcUInt32 *clients_count,
-                                  SilcServerEntry **servers,
-                                  SilcUInt32 *servers_count,
-                                  SilcChannelEntry **channels,
-                                  SilcUInt32 *channels_count,
-                                  SilcUInt32 *count,
-                                  ResolveError *error_id,
-                                  SilcUInt32 *error_id_count)
-{
-  SilcServer server = cmd->server;
-  unsigned char *tmp;
-  SilcUInt32 len;
-  SilcUInt32 argc = silc_argument_get_arg_num(cmd->args);
-  SilcIDPayload idp;
-  bool check_global = FALSE;
-  void *entry;
-  int i;
-
-  if (cmd->sock->type == SILC_SOCKET_TYPE_CLIENT)
-    check_global = TRUE;
-  else if (server->server_type != SILC_SERVER)
-    check_global = TRUE;
-
-  /* If ID Payload is in the command it must be used instead of names */
-  tmp = silc_argument_get_arg_type(cmd->args, 5, &len);
-  if (!tmp) {
-    /* No ID, get the names. */
-
-    /* If we are normal server and have not resolved information from
-       router yet, do so now. */
-    if (cmd->sock->type == SILC_SOCKET_TYPE_CLIENT && 
-       server->server_type == SILC_SERVER && !cmd->pending && 
-       !server->standalone) {
-      silc_server_command_identify_send_router(cmd);
-      return -1;
-    }
-
-    /* Try to get nickname@server. */
-    tmp = silc_argument_get_arg_type(cmd->args, 1, NULL);
-    if (tmp) {
-      char *nick = NULL;
-      char *nick_server = NULL;
-
-      silc_parse_userfqdn(tmp, &nick, &nick_server);
-
-      if (!silc_idlist_get_clients_by_hash(server->local_list, 
-                                          nick, server->md5hash,
-                                          clients, clients_count))
-       silc_idlist_get_clients_by_nickname(server->local_list, 
-                                           nick, nick_server,
-                                           clients, clients_count);
-      if (check_global) {
-       if (!silc_idlist_get_clients_by_hash(server->global_list, 
-                                            nick, server->md5hash,
-                                            clients, clients_count))
-         silc_idlist_get_clients_by_nickname(server->global_list, 
-                                             nick, nick_server,
-                                             clients, clients_count);
-      }
-
-      silc_free(nick);
-      silc_free(nick_server);
-
-      if (!(*clients)) {
-       /* the nickname does not exist, send error reply */
-       silc_server_command_send_status_data(cmd, SILC_COMMAND_IDENTIFY,
-                                            SILC_STATUS_ERR_NO_SUCH_NICK, 0,
-                                            3, tmp, strlen(tmp));
-       return 0;
-      }
-    }
-
-    /* Try to get server name */
-    tmp = silc_argument_get_arg_type(cmd->args, 2, NULL);
-    if (tmp) {
-      entry = silc_idlist_find_server_by_name(server->local_list,
-                                             tmp, TRUE, NULL);
-      if (!entry && check_global)
-       entry = silc_idlist_find_server_by_name(server->global_list,
-                                               tmp, TRUE, NULL);
-      if (entry) {
-       *servers = silc_realloc(*servers, sizeof(**servers) * 
-                               (*servers_count + 1));
-       (*servers)[(*servers_count)++] = entry;
-      }
-
-      if (!(*servers)) {
-       /* the server does not exist, send error reply */
-       silc_server_command_send_status_data(cmd, SILC_COMMAND_IDENTIFY,
-                                            SILC_STATUS_ERR_NO_SUCH_SERVER,
-                                            0, 3, tmp, strlen(tmp));
-       return 0;
-      }
-    }
-
-    /* Try to get channel name */
-    tmp = silc_argument_get_arg_type(cmd->args, 3, NULL);
-    if (tmp) {
-      entry = silc_idlist_find_channel_by_name(server->local_list,
-                                              tmp, NULL);
-      if (!entry && check_global)
-       entry = silc_idlist_find_channel_by_name(server->global_list,
-                                                tmp, NULL);
-      if (entry) {
-       *channels = silc_realloc(*channels, sizeof(**channels) * 
-                                (*channels_count + 1));
-       (*channels)[(*channels_count)++] = entry;
-      }
-
-      if (!(*channels)) {
-       /* The channel does not exist, send error reply */
-       silc_server_command_send_status_data(cmd, SILC_COMMAND_IDENTIFY,
-                                            SILC_STATUS_ERR_NO_SUCH_CHANNEL,
-                                            0, 3, tmp, strlen(tmp));
-       return 0;
-      }
-    }
-
-    if (!(*clients) && !(*servers) && !(*channels)) {
-      silc_server_command_send_status_reply(cmd, SILC_COMMAND_IDENTIFY,
-                                           SILC_STATUS_ERR_NOT_ENOUGH_PARAMS,
-                                           0);
-      return 0;
-    }
-  } else {
-    /* Command includes ID, we must use that.  Also check whether the command
-       has more than one ID set - take them all. */
-
-    /* Take all ID's from the command packet */
-    for (i = 0; i < argc; i++) {
-      void *id;
-
-      tmp = silc_argument_get_arg_type(cmd->args, i + 5, &len);
-      if (!tmp)
-       continue;
-      
-      idp = silc_id_payload_parse(tmp, len);
-      if (!idp)
-       ADD_ERROR((*error_id), (*error_id_count), NULL, 0, i + 5,
-                 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
-
-      id = silc_id_payload_get_id(idp);
-      switch (silc_id_payload_get_type(idp)) {
-       
-      case SILC_ID_CLIENT:
-       entry = silc_idlist_find_client_by_id(server->local_list, 
-                                             id, TRUE, NULL);
-       if (!entry && check_global)
-         entry = silc_idlist_find_client_by_id(server->global_list, 
-                                               id, TRUE, NULL);
-       if (entry) {
-         *clients = silc_realloc(*clients, sizeof(**clients) * 
-                                 (*clients_count + 1));
-         (*clients)[(*clients_count)++] = (SilcClientEntry)entry;
-       } else {
-         /* If we are normal server and have not resolved information from
-            router yet, do so now. */
-         if (cmd->sock->type == SILC_SOCKET_TYPE_CLIENT && 
-             server->server_type == SILC_SERVER && !cmd->pending && 
-             !server->standalone) {
-           silc_server_command_identify_send_router(cmd);
-           silc_free(*clients);
-           silc_free(*servers);
-           silc_free(*channels);
-           silc_free(*error_id);
-           return -1;
-         }
-
-         ADD_ERROR((*error_id), (*error_id_count), NULL, 0, i + 5,
-                   SILC_STATUS_ERR_NO_SUCH_CLIENT_ID);
-       }
-
-       break;
-       
-      case SILC_ID_SERVER:
-       entry = silc_idlist_find_server_by_id(server->local_list, 
-                                             id, TRUE, NULL);
-       if (!entry && check_global)
-         entry = silc_idlist_find_server_by_id(server->global_list, 
-                                               id, TRUE, NULL);
-       if (entry) {
-         *servers = silc_realloc(*servers, sizeof(**servers) * 
-                                 (*servers_count + 1));
-         (*servers)[(*servers_count)++] = (SilcServerEntry)entry;
-       } else {
-         /* If we are normal server and have not resolved information from
-            router yet, do so now. */
-         if (cmd->sock->type == SILC_SOCKET_TYPE_CLIENT && 
-             server->server_type == SILC_SERVER && !cmd->pending && 
-             !server->standalone) {
-           silc_server_command_identify_send_router(cmd);
-           silc_free(*clients);
-           silc_free(*servers);
-           silc_free(*channels);
-           silc_free(*error_id);
-           return -1;
-         }
-
-         ADD_ERROR((*error_id), (*error_id_count), NULL, 0, i + 5,
-                   SILC_STATUS_ERR_NO_SUCH_SERVER_ID);
-       }
-       break;
-       
-      case SILC_ID_CHANNEL:
-       entry = silc_idlist_find_channel_by_id(server->local_list, id, NULL);
-       if (!entry && check_global)
-         entry = silc_idlist_find_channel_by_id(server->global_list, id,
-                                                NULL);
-       if (entry) {
-         *channels = silc_realloc(*channels, sizeof(**channels) * 
-                                  (*channels_count + 1));
-         (*channels)[(*channels_count)++] = (SilcChannelEntry)entry;
-       } else {
-         /* If we are normal server and have not resolved information from
-            router yet, do so now. */
-         if (cmd->sock->type == SILC_SOCKET_TYPE_CLIENT && 
-             server->server_type == SILC_SERVER && !cmd->pending && 
-             !server->standalone) {
-           silc_server_command_identify_send_router(cmd);
-           silc_free(*clients);
-           silc_free(*servers);
-           silc_free(*channels);
-           silc_free(*error_id);
-           return -1;
-         }
-
-         ADD_ERROR((*error_id), (*error_id_count), NULL, 0, i + 5,
-                   SILC_STATUS_ERR_NO_SUCH_CHANNEL_ID);
-       }
-       break;
-      }
-
-      silc_id_payload_free(idp);
-      silc_free(id);
-    }
-  }
-
-  /* Get the max count of reply messages allowed */
-  tmp = silc_argument_get_arg_type(cmd->args, 4, NULL);
-  if (tmp)
-    SILC_GET32_MSB(*count, tmp);
-  else
-    *count = 0;
-
-  return 1;
-}
-
-/* Checks that all mandatory fields in client entry are present. If not
-   then send WHOIS request to the server who owns the client. We use
-   WHOIS because we want to get as much information as possible at once. */
-
-static bool
-silc_server_command_identify_check_client(SilcServerCommandContext cmd,
-                                         SilcClientEntry *clients,
-                                         SilcUInt32 clients_count)
-{
-  SilcServer server = cmd->server;
-  SilcClientEntry entry;
-  SilcServerResolveContext resolve = NULL, r = NULL;
-  SilcUInt32 resolve_count = 0;
-  int i, k;
-  bool no_res = TRUE;
-
-  for (i = 0; i < clients_count; i++) {
-    entry = clients[i];
-    if (!entry)
-      continue;
-
-    if (entry->nickname || 
-       !(entry->data.status & SILC_IDLIST_STATUS_REGISTERED)) {
-      if (!entry->router)
-       continue;
-
-      /* If we are normal server, and we've not resolved this client from
-        router and it is global client, we'll check whether it is on some
-        channel.  If not then we cannot be sure about its validity, and
-        we'll resolve it from router. */
-      if (cmd->server->server_type != SILC_SERVER || cmd->pending ||
-         entry->connection || silc_hash_table_count(entry->channels))
-       continue;
-    }
-
-    /* We need to resolve this entry since it is not complete */
-
-    if (!cmd->pending && entry->data.status & SILC_IDLIST_STATUS_RESOLVING) {
-      /* The entry is being resolved (and we are not the resolver) so attach
-        to the command reply and we're done with this one. */
-      silc_server_command_pending(server, SILC_COMMAND_NONE, 
-                                 entry->resolve_cmd_ident,
-                                 silc_server_command_identify,
-                                 silc_server_command_dup(cmd));
-      no_res = FALSE;
-    } else {
-      if (entry->data.status & SILC_IDLIST_STATUS_RESOLVING) {
-       /* We've resolved this and it still is not ready.  We'll return
-          and are that this will be handled again after it is resolved. */
-       for (i = 0; i < resolve_count; i++) {
-         for (k = 0; k < r->res_argc; k++)
-           silc_free(r->res_argv[k]);
-         silc_free(r->res_argv);
-         silc_free(r->res_argv_lens);
-         silc_free(r->res_argv_types);
-       }
-       silc_free(resolve);
-       return FALSE;
-      } else {
-       /* We'll resolve this client */
-       SilcBuffer idp;
-
-       r = NULL;
-       for (k = 0; k < resolve_count; k++) {
-         if (resolve[k].router == entry->router) {
-           r = &resolve[k];
-           break;
-         }
-       }
+/* Checks for pending commands and marks callbacks to be called from
+   the command reply function. Returns TRUE if there were pending command. */
 
-       if (!r) {
-         resolve = silc_realloc(resolve, sizeof(*resolve) * 
-                                (resolve_count + 1));
-         r = &resolve[resolve_count];
-         memset(r, 0, sizeof(*r));
-         r->router = entry->router;
-         r->ident = ++server->cmd_ident;
-         resolve_count++;
-       }
+SilcServerCommandPendingCallbacks
+silc_server_command_pending_check(SilcServer server,
+                                 SilcCommand command,
+                                 SilcUInt16 ident,
+                                 SilcUInt32 *callbacks_count)
+{
+  SilcServerCommandPending *r;
+  SilcServerCommandPendingCallbacks callbacks = NULL;
+  int i = 0;
 
-       r->res_argv = silc_realloc(r->res_argv, sizeof(*r->res_argv) *
-                                  (r->res_argc + 1));
-       r->res_argv_lens = silc_realloc(r->res_argv_lens, 
-                                       sizeof(*r->res_argv_lens) *
-                                       (r->res_argc + 1));
-       r->res_argv_types = silc_realloc(r->res_argv_types, 
-                                        sizeof(*r->res_argv_types) *
-                                        (r->res_argc + 1));
-       idp = silc_id_payload_encode(entry->id, SILC_ID_CLIENT);
-       r->res_argv[r->res_argc] = silc_calloc(idp->len, 
-                                              sizeof(**r->res_argv));
-       memcpy(r->res_argv[r->res_argc], idp->data, idp->len);
-       r->res_argv_lens[r->res_argc] = idp->len;
-       r->res_argv_types[r->res_argc] = r->res_argc + 4;
-       r->res_argc++;
-       silc_buffer_free(idp);
-
-       entry->resolve_cmd_ident = r->ident;
-       entry->data.status |= SILC_IDLIST_STATUS_RESOLVING;
-       entry->data.status &= ~SILC_IDLIST_STATUS_RESOLVED;
-      }
+  silc_dlist_start(server->pending_commands);
+  while ((r = silc_dlist_get(server->pending_commands)) != SILC_LIST_END) {
+    if ((r->reply_cmd == command || r->reply_cmd == SILC_COMMAND_NONE)
+       && r->ident == ident) {
+      callbacks = silc_realloc(callbacks, sizeof(*callbacks) * (i + 1));
+      callbacks[i].context = r->context;
+      callbacks[i].callback = r->callback;
+      r->reply_check = TRUE;
+      i++;
     }
   }
 
-  /* Do the resolving */
-  for (i = 0; i < resolve_count; i++) {
-    SilcBuffer res_cmd;
-
-    r = &resolve[i];
+  *callbacks_count = i;
+  return callbacks;
+}
 
-    /* Send WHOIS request. We send WHOIS since we're doing the requesting
-       now anyway so make it a good one. */
-    res_cmd = silc_command_payload_encode(SILC_COMMAND_WHOIS,
-                                         r->res_argc, r->res_argv, 
-                                         r->res_argv_lens,
-                                         r->res_argv_types, 
-                                         r->ident);
-    silc_server_packet_send(server, r->router->connection,
-                           SILC_PACKET_COMMAND, cmd->packet->flags,
-                           res_cmd->data, res_cmd->len, FALSE);
+/* Sends simple status message as command reply packet */
 
-    /* Reprocess this packet after received reply */
-    silc_server_command_pending(server, SILC_COMMAND_WHOIS, 
-                               r->ident,
-                               silc_server_command_identify,
-                               silc_server_command_dup(cmd));
-    cmd->pending = TRUE;
+static void
+silc_server_command_send_status_reply(SilcServerCommandContext cmd,
+                                     SilcCommand command,
+                                     SilcStatus status,
+                                     SilcStatus error)
+{
+  SilcBuffer buffer;
 
-    silc_buffer_free(res_cmd);
-    for (k = 0; k < r->res_argc; k++)
-      silc_free(r->res_argv[k]);
-    silc_free(r->res_argv);
-    silc_free(r->res_argv_lens);
-    silc_free(r->res_argv_types);
-    no_res = FALSE;
-  }
-  silc_free(resolve);
+  SILC_LOG_DEBUG(("Sending command status %d", status));
 
-  return no_res;
+  buffer =
+    silc_command_reply_payload_encode_va(command, status, error,
+                                        silc_command_get_ident(cmd->payload),
+                                        0);
+  silc_server_packet_send(cmd->server, cmd->sock,
+                         SILC_PACKET_COMMAND_REPLY, 0,
+                         buffer->data, buffer->len, FALSE);
+  silc_buffer_free(buffer);
 }
 
+/* Sends command status reply with one extra argument. The argument
+   type must be sent as argument. */
+
 static void
-silc_server_command_identify_send_reply(SilcServerCommandContext cmd,
-                                       SilcClientEntry *clients,
-                                       SilcUInt32 clients_count,
-                                       SilcServerEntry *servers,
-                                       SilcUInt32 servers_count,
-                                       SilcChannelEntry *channels,
-                                       SilcUInt32 channels_count,
-                                       ResolveError errors,
-                                       SilcUInt32 errors_count,
-                                       int count)
+silc_server_command_send_status_data(SilcServerCommandContext cmd,
+                                    SilcCommand command,
+                                    SilcStatus status,
+                                    SilcStatus error,
+                                    SilcUInt32 arg_type,
+                                    const unsigned char *arg,
+                                    SilcUInt32 arg_len)
 {
-  SilcServer server = cmd->server;
-  int i, k, valid_count;
-  SilcUInt32 len;
-  SilcBuffer packet, idp;
-  SilcStatus status;
-  SilcUInt16 ident = silc_command_get_ident(cmd->payload);
-  char nh[256], uh[256];
-  SilcSocketConnection hsock;
-  unsigned char *tmp;
-
-  status = SILC_STATUS_OK;
+  SilcBuffer buffer;
 
-  if (clients) {
-    SilcClientEntry entry;
-    valid_count = clients_count;
-
-    if (silc_argument_get_arg_type(cmd->args, 1, NULL)) {
-      /* Process only valid clients and ignore those that are not registered. 
-        This is checked with nickname only because when resolved client IDs
-        we check that they are registered earlier. */
-      valid_count = 0;
-      for (i = 0; i < clients_count; i++) {
-       if (clients[i]->data.status & SILC_IDLIST_STATUS_REGISTERED)
-         valid_count++;
-       else
-         clients[i] = NULL;
-      }
+  SILC_LOG_DEBUG(("Sending command status %d", status));
 
-      if (!valid_count) {
-       /* No valid entries found at all, just send error */
-       tmp = silc_argument_get_arg_type(cmd->args, 1, NULL);
-       silc_server_command_send_status_data(cmd, SILC_COMMAND_IDENTIFY,
-                                            SILC_STATUS_ERR_NO_SUCH_NICK, 0,
-                                            3, tmp, tmp ? strlen(tmp) : 0);
-       return;
-      }
-    }
+  buffer =
+    silc_command_reply_payload_encode_va(command, status, 0,
+                                        silc_command_get_ident(cmd->payload),
+                                        1, arg_type, arg, arg_len);
+  silc_server_packet_send(cmd->server, cmd->sock,
+                         SILC_PACKET_COMMAND_REPLY, 0,
+                         buffer->data, buffer->len, FALSE);
+  silc_buffer_free(buffer);
+}
 
-    /* Process all valid client entries and send command replies */
-
-    if (valid_count > 1)
-      status = SILC_STATUS_LIST_START;
-
-    for (i = 0, k = 0; i < clients_count; i++) {
-      entry = clients[i];
-      if (!entry)
-       continue;
-
-      if (k >= 1)
-       status = SILC_STATUS_LIST_ITEM;
-      if (valid_count > 1 && k == valid_count - 1 
-         && !servers_count && !channels_count && !errors_count)
-       status = SILC_STATUS_LIST_END;
-      if (count && k - 1 == count)
-       status = SILC_STATUS_LIST_END;
-
-      /* Send IDENTIFY reply */
-
-      idp = silc_id_payload_encode(entry->id, SILC_ID_CLIENT);
-      memset(uh, 0, sizeof(uh));
-      memset(nh, 0, sizeof(nh));
-      strncat(nh, entry->nickname, strlen(entry->nickname));
-      if (!strchr(entry->nickname, '@')) {
-       strncat(nh, "@", 1);
-       if (entry->servername) {
-         strncat(nh, entry->servername, strlen(entry->servername));
-       } else {
-         len = entry->router ? strlen(entry->router->server_name) :
-           strlen(server->server_name);
-         strncat(nh, entry->router ? entry->router->server_name :
-                 server->server_name, len);
-       }
-      }
+static void
+silc_server_command_send_status_data2(SilcServerCommandContext cmd,
+                                     SilcCommand command,
+                                     SilcStatus status,
+                                     SilcStatus error,
+                                     SilcUInt32 arg_type1,
+                                     const unsigned char *arg1,
+                                     SilcUInt32 arg_len1,
+                                     SilcUInt32 arg_type2,
+                                     const unsigned char *arg2,
+                                     SilcUInt32 arg_len2)
+{
+  SilcBuffer buffer;
 
-      if (!entry->username) {
-       packet = silc_command_reply_payload_encode_va(SILC_COMMAND_IDENTIFY,
-                                                     status, 0, ident, 2,
-                                                     2, idp->data, idp->len, 
-                                                     3, nh, strlen(nh));
-      } else {
-       strncat(uh, entry->username, strlen(entry->username));
-       if (!strchr(entry->username, '@') && entry->connection) {
-         strncat(uh, "@", 1);
-         hsock = (SilcSocketConnection)entry->connection;
-         len = strlen(hsock->hostname);
-         strncat(uh, hsock->hostname, len);
-       }
-       
-       packet = silc_command_reply_payload_encode_va(SILC_COMMAND_IDENTIFY,
-                                                     status, 0, ident, 3,
-                                                     2, idp->data, idp->len, 
-                                                     3, nh, strlen(nh),
-                                                     4, uh, strlen(uh));
-      }
-      
-      silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY,
-                             0, packet->data, packet->len, FALSE);
-      
-      silc_buffer_free(packet);
-      silc_buffer_free(idp);
-      
-      if (status == SILC_STATUS_LIST_END)
-       break;
-      k++;
-    }
-  }
+  SILC_LOG_DEBUG(("Sending command status %d", status));
 
-  if (servers) {
-    SilcServerEntry entry;
+  buffer =
+    silc_command_reply_payload_encode_va(command, status, 0,
+                                        silc_command_get_ident(cmd->payload),
+                                        2, arg_type1, arg1, arg_len1,
+                                        arg_type2, arg2, arg_len2);
+  silc_server_packet_send(cmd->server, cmd->sock,
+                         SILC_PACKET_COMMAND_REPLY, 0,
+                         buffer->data, buffer->len, FALSE);
+  silc_buffer_free(buffer);
+}
 
-    if (status == SILC_STATUS_OK && servers_count > 1)
-      status = SILC_STATUS_LIST_START;
-
-    for (i = 0, k = 0; i < servers_count; i++) {
-      entry = servers[i];
-      
-      if (k >= 1)
-       status = SILC_STATUS_LIST_ITEM;
-      if (servers_count > 1 && k == servers_count - 1 && !channels_count &&
-         !errors_count)
-       status = SILC_STATUS_LIST_END;
-      if (count && k - 1 == count)
-       status = SILC_STATUS_LIST_END;
-      
-      /* Send IDENTIFY reply */
-      idp = silc_id_payload_encode(entry->id, SILC_ID_SERVER);
-      packet = 
-       silc_command_reply_payload_encode_va(SILC_COMMAND_IDENTIFY,
-                                            status, 0, ident, 2,
-                                            2, idp->data, idp->len, 
-                                            3, entry->server_name, 
-                                            entry->server_name ? 
-                                            strlen(entry->server_name) : 0);
-      silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY,
-                             0, packet->data, packet->len, FALSE);
-      
-      silc_buffer_free(packet);
-      silc_buffer_free(idp);
-      
-      if (status == SILC_STATUS_LIST_END)
-       break;
-      k++;
-    }
-  }
+/* This function can be called to check whether in the command reply
+   an error occurred. This function has no effect if this is called
+   when the command function was not called as pending command callback.
+   This returns TRUE if error had occurred. */
 
-  if (channels) {
-    SilcChannelEntry entry;
-
-    if (status == SILC_STATUS_OK && channels_count > 1)
-      status = SILC_STATUS_LIST_START;
-
-    for (i = 0, k = 0; i < channels_count; i++) {
-      entry = channels[i];
-      
-      if (k >= 1)
-       status = SILC_STATUS_LIST_ITEM;
-      if (channels_count > 1 && k == channels_count - 1 && !errors_count)
-       status = SILC_STATUS_LIST_END;
-      if (count && k - 1 == count)
-       status = SILC_STATUS_LIST_END;
-      
-      /* Send IDENTIFY reply */
-      idp = silc_id_payload_encode(entry->id, SILC_ID_CHANNEL);
-      packet = 
-       silc_command_reply_payload_encode_va(SILC_COMMAND_IDENTIFY,
-                                            status, 0, ident, 2,
-                                            2, idp->data, idp->len, 
-                                            3, entry->channel_name, 
-                                            entry->channel_name ? 
-                                            strlen(entry->channel_name): 0);
-      silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY,
-                             0, packet->data, packet->len, FALSE);
-      
-      silc_buffer_free(packet);
-      silc_buffer_free(idp);
-      
-      if (status == SILC_STATUS_LIST_END)
-       break;
-      k++;
-    }
-  }
+static bool
+silc_server_command_pending_error_check(SilcServerCommandContext cmd,
+                                       SilcServerCommandReplyContext cmdr,
+                                       SilcCommand command)
+{
+  if (!cmd->pending || !cmdr)
+    return FALSE;
 
-  /* Send error replies */
-  if (errors) {
-    if (status == SILC_STATUS_OK && errors_count > 1)
-      status = SILC_STATUS_LIST_START;
+  if (!silc_command_get_status(cmdr->payload, NULL, NULL)) {
+    SilcBuffer buffer;
 
-    idp = NULL;
-    for (i = 0, k = 0; i < errors_count; i++) {
-      if (errors[i].id) {
-       idp = silc_id_payload_encode(errors[i].id, SILC_ID_CLIENT);
-       tmp = idp->data;
-       len = idp->len;
-      } else {
-       tmp = silc_argument_get_arg_type(cmd->args, errors[i].index, &len);
-      }
-      
-      if (k >= 1)
-       status = SILC_STATUS_LIST_ITEM;
-      if (errors_count > 1 && k == errors_count - 1)
-       status = SILC_STATUS_LIST_END;
-      if (count && k - 1 == count)
-       status = SILC_STATUS_LIST_END;
-      
-      /* Send error */
-      silc_server_command_send_status_data(cmd, SILC_COMMAND_IDENTIFY,
-                                          (status == SILC_STATUS_OK ?
-                                           errors[i].error : status),
-                                          (status == SILC_STATUS_OK ?
-                                           0 : errors[i].error),
-                                          2, tmp, len);
-      silc_buffer_free(idp);
-      idp = NULL;
-      
-      if (status == SILC_STATUS_LIST_END)
-       break;
-      k++;
-    }
+    /* Send the same command reply payload */
+    silc_command_set_command(cmdr->payload, silc_command_get(cmd->payload));
+    silc_command_set_ident(cmdr->payload,
+                          silc_command_get_ident(cmd->payload));
+    buffer = silc_command_payload_encode_payload(cmdr->payload);
+    silc_server_packet_send(cmd->server, cmd->sock,
+                           SILC_PACKET_COMMAND_REPLY, 0,
+                           buffer->data, buffer->len, FALSE);
+    silc_buffer_free(buffer);
+    return TRUE;
   }
+
+  return FALSE;
 }
 
-static int
-silc_server_command_identify_process(SilcServerCommandContext cmd)
+/* Server side of command WHOIS. */
+
+SILC_SERVER_CMD_FUNC(whois)
 {
-  SilcUInt32 count = 0;
-  int ret = 0;
-  SilcClientEntry *clients = NULL;
-  SilcServerEntry *servers = NULL;
-  SilcChannelEntry *channels = NULL;
-  SilcUInt32 clients_count = 0, servers_count = 0, channels_count = 0;
-  SilcUInt32 errors_count = 0;
-  ResolveError errors = NULL;
-
-  /* Parse the IDENTIFY request */
-  ret = silc_server_command_identify_parse(cmd,
-                                          &clients, &clients_count,
-                                          &servers, &servers_count,
-                                          &channels, &channels_count,
-                                          &count, &errors, &errors_count);
-  if (ret < 1)
-    return ret;
-  ret = 0;
-
-  /* Check that all mandatory fields are present and request those data
-     from the server who owns the client if necessary. */
-  if (!silc_server_command_identify_check_client(cmd, clients, 
-                                                clients_count)) {
-    ret = -1;
-    goto out;
-  }
+  SilcServerCommandContext cmd = (SilcServerCommandContext)context;
+  SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_WHOIS, cmd, 1, 256);
+  silc_server_query_command(cmd->server, SILC_COMMAND_WHOIS, cmd);
+  silc_server_command_free(cmd);
+}
 
-  /* Send the command reply to the client */
-  silc_server_command_identify_send_reply(cmd, 
-                                         clients, clients_count,
-                                         servers, servers_count,
-                                         channels, channels_count, 
-                                         errors, errors_count,
-                                         count);
+/* Server side of command WHOWAS. */
 
- out:
-  silc_free(clients);
-  silc_free(servers);
-  silc_free(channels);
-  silc_free(errors);
-  return ret;
+SILC_SERVER_CMD_FUNC(whowas)
+{
+  SilcServerCommandContext cmd = (SilcServerCommandContext)context;
+  SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_WHOWAS, cmd, 1, 2);
+  silc_server_query_command(cmd->server, SILC_COMMAND_WHOWAS, cmd);
+  silc_server_command_free(cmd);
 }
 
+/* Server side of command IDENTIFY. */
+
 SILC_SERVER_CMD_FUNC(identify)
 {
   SilcServerCommandContext cmd = (SilcServerCommandContext)context;
-  int ret = 0;
-
-  SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_IDENTIFY, cmd, 1, 3328);
-
-  ret = silc_server_command_identify_process(cmd);
+  SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_IDENTIFY, cmd, 1, 256);
+  silc_server_query_command(cmd->server, SILC_COMMAND_IDENTIFY, cmd);
   silc_server_command_free(cmd);
 }
 
@@ -2097,6 +632,11 @@ SILC_SERVER_CMD_FUNC(nick)
 
   /* Check nickname */
   nick = silc_argument_get_arg_type(cmd->args, 1, &nick_len);
+  if (!nick) {
+    silc_server_command_send_status_reply(cmd, SILC_COMMAND_NICK,
+                                         SILC_STATUS_ERR_BAD_NICKNAME, 0);
+    goto out;
+  }
   if (nick_len > 128)
     nick[128] = '\0';
   if (silc_server_name_bad_chars(nick, nick_len) == TRUE) {
@@ -2112,8 +652,8 @@ SILC_SERVER_CMD_FUNC(nick)
   }
 
   /* Create new Client ID */
-  while (!silc_id_create_client_id(cmd->server, cmd->server->id, 
-                                  cmd->server->rng, 
+  while (!silc_id_create_client_id(cmd->server, cmd->server->id,
+                                  cmd->server->rng,
                                   cmd->server->md5hash, nick,
                                   &new_id)) {
     nickfail++;
@@ -2149,17 +689,17 @@ SILC_SERVER_CMD_FUNC(nick)
   client->nickname = strdup(nick);
 
   /* Update client cache */
-  silc_idcache_add(server->local_list->clients, client->nickname, 
+  silc_idcache_add(server->local_list->clients, client->nickname,
                   client->id, (void *)client, 0, NULL);
 
   nidp = silc_id_payload_encode(client->id, SILC_ID_CLIENT);
 
   /* Send NICK_CHANGE notify to the client's channels */
-  silc_server_send_notify_on_channels(server, NULL, client, 
+  silc_server_send_notify_on_channels(server, NULL, client,
                                      SILC_NOTIFY_TYPE_NICK_CHANGE, 3,
-                                     oidp->data, oidp->len, 
+                                     oidp->data, oidp->len,
                                      nidp->data, nidp->len,
-                                     client->nickname, 
+                                     client->nickname,
                                      strlen(client->nickname));
 
   /* Check if anyone is watching the new nickname */
@@ -2169,7 +709,7 @@ SILC_SERVER_CMD_FUNC(nick)
 
  send_reply:
   /* Send the new Client ID as reply command back to client */
-  packet = silc_command_reply_payload_encode_va(SILC_COMMAND_NICK, 
+  packet = silc_command_reply_payload_encode_va(SILC_COMMAND_NICK,
                                                SILC_STATUS_OK, 0, ident, 2,
                                                2, nidp->data, nidp->len,
                                                3, nick, strlen(nick));
@@ -2180,7 +720,7 @@ SILC_SERVER_CMD_FUNC(nick)
   silc_buffer_free(nidp);
   if (oidp)
     silc_buffer_free(oidp);
-  
+
  out:
   silc_server_command_free(cmd);
 }
@@ -2189,7 +729,7 @@ SILC_SERVER_CMD_FUNC(nick)
 
 static void
 silc_server_command_list_send_reply(SilcServerCommandContext cmd,
-                                   SilcChannelEntry *lch, 
+                                   SilcChannelEntry *lch,
                                    SilcUInt32 lch_count,
                                    SilcChannelEntry *gch,
                                    SilcUInt32 gch_count)
@@ -2244,16 +784,16 @@ silc_server_command_list_send_reply(SilcServerCommandContext cmd,
     }
 
     /* Send the reply */
-    packet = 
-      silc_command_reply_payload_encode_va(SILC_COMMAND_LIST, 
+    packet =
+      silc_command_reply_payload_encode_va(SILC_COMMAND_LIST,
                                           status, 0, ident, 4,
                                           2, idp->data, idp->len,
-                                          3, entry->channel_name, 
+                                          3, entry->channel_name,
                                           strlen(entry->channel_name),
                                           4, topic, topic ? strlen(topic) : 0,
                                           5, usercount, 4);
-    silc_server_packet_send(cmd->server, cmd->sock, 
-                           SILC_PACKET_COMMAND_REPLY, 0, packet->data, 
+    silc_server_packet_send(cmd->server, cmd->sock,
+                           SILC_PACKET_COMMAND_REPLY, 0, packet->data,
                            packet->len, FALSE);
     silc_buffer_free(packet);
     silc_buffer_free(idp);
@@ -2283,16 +823,16 @@ silc_server_command_list_send_reply(SilcServerCommandContext cmd,
     }
 
     /* Send the reply */
-    packet = 
-      silc_command_reply_payload_encode_va(SILC_COMMAND_LIST, 
+    packet =
+      silc_command_reply_payload_encode_va(SILC_COMMAND_LIST,
                                           status, 0, ident, 4,
                                           2, idp->data, idp->len,
-                                          3, entry->channel_name, 
+                                          3, entry->channel_name,
                                           strlen(entry->channel_name),
                                           4, topic, topic ? strlen(topic) : 0,
                                           5, usercount, 4);
-    silc_server_packet_send(cmd->server, cmd->sock, 
-                           SILC_PACKET_COMMAND_REPLY, 0, packet->data, 
+    silc_server_packet_send(cmd->server, cmd->sock,
+                           SILC_PACKET_COMMAND_REPLY, 0, packet->data,
                            packet->len, FALSE);
     silc_buffer_free(packet);
     silc_buffer_free(idp);
@@ -2317,11 +857,11 @@ SILC_SERVER_CMD_FUNC(list)
 
   /* If we are normal server, send the command to router, since we
      want to know all channels in the network. */
-  if (!cmd->pending && server->server_type == SILC_SERVER && 
+  if (!cmd->pending && server->server_type != SILC_ROUTER &&
       !server->standalone) {
     SilcBuffer tmpbuf;
     SilcUInt16 old_ident;
-    
+
     old_ident = silc_command_get_ident(cmd->payload);
     silc_command_set_ident(cmd->payload, ++server->cmd_ident);
     tmpbuf = silc_command_payload_encode_payload(cmd->payload);
@@ -2330,9 +870,9 @@ SILC_SERVER_CMD_FUNC(list)
                            tmpbuf->data, tmpbuf->len, TRUE);
 
     /* Reprocess this packet after received reply from router */
-    silc_server_command_pending(server, SILC_COMMAND_LIST, 
+    silc_server_command_pending(server, SILC_COMMAND_LIST,
                                silc_command_get_ident(cmd->payload),
-                               silc_server_command_list, 
+                               silc_server_command_list,
                                silc_server_command_dup(cmd));
     cmd->pending = TRUE;
     silc_command_set_ident(cmd->payload, old_ident);
@@ -2354,13 +894,13 @@ SILC_SERVER_CMD_FUNC(list)
   /* Get the channels from local list */
   lchannels = silc_idlist_get_channels(server->local_list, channel_id,
                                       &lch_count);
-  
+
   /* Get the channels from global list */
   gchannels = silc_idlist_get_channels(server->global_list, channel_id,
                                       &gch_count);
 
   /* Send the reply */
-  silc_server_command_list_send_reply(cmd, lchannels, lch_count, 
+  silc_server_command_list_send_reply(cmd, lchannels, lch_count,
                                      gchannels, gch_count);
 
   silc_free(lchannels);
@@ -2408,15 +948,15 @@ SILC_SERVER_CMD_FUNC(topic)
   }
 
   /* Check whether the channel exists */
-  channel = silc_idlist_find_channel_by_id(server->local_list, 
+  channel = silc_idlist_find_channel_by_id(server->local_list,
                                           channel_id, NULL);
   if (!channel) {
-    channel = silc_idlist_find_channel_by_id(server->global_list, 
+    channel = silc_idlist_find_channel_by_id(server->global_list,
                                             channel_id, NULL);
     if (!channel) {
-      silc_server_command_send_status_reply(cmd, SILC_COMMAND_TOPIC,
-                                           SILC_STATUS_ERR_NO_SUCH_CHANNEL,
-                                           0);
+      silc_server_command_send_status_data(cmd, SILC_COMMAND_TOPIC,
+                                          SILC_STATUS_ERR_NO_SUCH_CHANNEL_ID,
+                                          0, 2, tmp, tmp_len);
       goto out;
     }
   }
@@ -2440,18 +980,20 @@ SILC_SERVER_CMD_FUNC(topic)
 
     /* See whether the client is on channel and has rights to change topic */
     if (!silc_server_client_on_channel(client, channel, &chl)) {
-      silc_server_command_send_status_reply(cmd, SILC_COMMAND_TOPIC,
-                                           SILC_STATUS_ERR_NOT_ON_CHANNEL,
-                                           0);
+      tmp = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
+      silc_server_command_send_status_data(cmd, SILC_COMMAND_TOPIC,
+                                          SILC_STATUS_ERR_NOT_ON_CHANNEL,
+                                          0, 2, tmp, tmp_len);
       goto out;
     }
 
     if (channel->mode & SILC_CHANNEL_MODE_TOPIC &&
        !(chl->mode & SILC_CHANNEL_UMODE_CHANOP) &&
        !(chl->mode & SILC_CHANNEL_UMODE_CHANFO)) {
-      silc_server_command_send_status_reply(cmd, SILC_COMMAND_TOPIC,
-                                           SILC_STATUS_ERR_NO_CHANNEL_PRIV,
-                                           0);
+      tmp = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
+      silc_server_command_send_status_data(cmd, SILC_COMMAND_TOPIC,
+                                          SILC_STATUS_ERR_NO_CHANNEL_PRIV,
+                                          0, 2, tmp, tmp_len);
       goto out;
     }
 
@@ -2468,7 +1010,7 @@ SILC_SERVER_CMD_FUNC(topic)
 
       /* Send notify about topic change to all clients on the channel */
       idp = silc_id_payload_encode(client->id, SILC_ID_CLIENT);
-      silc_server_send_notify_to_channel(server, NULL, channel, FALSE, 
+      silc_server_send_notify_to_channel(server, NULL, channel, FALSE, TRUE,
                                         SILC_NOTIFY_TYPE_TOPIC_SET, 2,
                                         idp->data, idp->len,
                                         channel->topic,
@@ -2479,11 +1021,11 @@ SILC_SERVER_CMD_FUNC(topic)
 
   /* Send the topic to client as reply packet */
   idp = silc_id_payload_encode(channel_id, SILC_ID_CHANNEL);
-  packet = silc_command_reply_payload_encode_va(SILC_COMMAND_TOPIC, 
-                                               SILC_STATUS_OK, 0, ident, 2, 
+  packet = silc_command_reply_payload_encode_va(SILC_COMMAND_TOPIC,
+                                               SILC_STATUS_OK, 0, ident, 2,
                                                2, idp->data, idp->len,
-                                               3, channel->topic, 
-                                               channel->topic ? 
+                                               3, channel->topic,
+                                               channel->topic ?
                                                strlen(channel->topic) : 0);
   silc_server_packet_send(cmd->server, cmd->sock, SILC_PACKET_COMMAND_REPLY,
                          0, packet->data, packet->len, FALSE);
@@ -2496,7 +1038,7 @@ SILC_SERVER_CMD_FUNC(topic)
   silc_server_command_free(cmd);
 }
 
-/* Server side of INVITE command. Invites some client to join some channel. 
+/* Server side of INVITE command. Invites some client to join some channel.
    This command is also used to manage the invite list of the channel. */
 
 SILC_SERVER_CMD_FUNC(invite)
@@ -2510,10 +1052,13 @@ SILC_SERVER_CMD_FUNC(invite)
   SilcChannelEntry channel;
   SilcChannelID *channel_id = NULL;
   SilcIDListData idata;
-  SilcBuffer idp, idp2, packet;
-  unsigned char *tmp, *add, *del;
-  SilcUInt32 len;
-  SilcUInt16 ident = silc_command_get_ident(cmd->payload);
+  SilcArgumentPayload args;
+  SilcHashTableList htl;
+  SilcBuffer packet, list, tmp2;
+  SilcBufferStruct alist;
+  unsigned char *tmp, *atype = NULL;
+  SilcUInt32 len, type, len2;
+  SilcUInt16 argc = 0, ident = silc_command_get_ident(cmd->payload);
 
   SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_INVITE, cmd, 1, 4);
 
@@ -2532,15 +1077,15 @@ SILC_SERVER_CMD_FUNC(invite)
   }
 
   /* Get the channel entry */
-  channel = silc_idlist_find_channel_by_id(server->local_list, 
+  channel = silc_idlist_find_channel_by_id(server->local_list,
                                           channel_id, NULL);
   if (!channel) {
-    channel = silc_idlist_find_channel_by_id(server->global_list, 
+    channel = silc_idlist_find_channel_by_id(server->global_list,
                                             channel_id, NULL);
     if (!channel) {
-      silc_server_command_send_status_reply(cmd, SILC_COMMAND_INVITE,
-                                           SILC_STATUS_ERR_NO_SUCH_CHANNEL,
-                                           0);
+      silc_server_command_send_status_data(cmd, SILC_COMMAND_INVITE,
+                                          SILC_STATUS_ERR_NO_SUCH_CHANNEL_ID,
+                                          0, 2, tmp, len);
       goto out;
     }
   }
@@ -2548,8 +1093,9 @@ SILC_SERVER_CMD_FUNC(invite)
   /* Check whether the sender of this command is on the channel. */
   sender = (SilcClientEntry)sock->user_data;
   if (!sender || !silc_server_client_on_channel(sender, channel, &chl)) {
-    silc_server_command_send_status_reply(cmd, SILC_COMMAND_INVITE,
-                                         SILC_STATUS_ERR_NOT_ON_CHANNEL, 0);
+    silc_server_command_send_status_data(cmd, SILC_COMMAND_INVITE,
+                                        SILC_STATUS_ERR_NOT_ON_CHANNEL, 0,
+                                        2, tmp, len);
     goto out;
   }
 
@@ -2558,16 +1104,15 @@ SILC_SERVER_CMD_FUNC(invite)
   if (channel->mode & SILC_CHANNEL_MODE_INVITE &&
       !(chl->mode & SILC_CHANNEL_UMODE_CHANOP) &&
       !(chl->mode & SILC_CHANNEL_UMODE_CHANFO)) {
-    silc_server_command_send_status_reply(cmd, SILC_COMMAND_INVITE,
-                                         SILC_STATUS_ERR_NO_CHANNEL_PRIV,
-                                         0);
+    silc_server_command_send_status_data(cmd, SILC_COMMAND_INVITE,
+                                        SILC_STATUS_ERR_NO_CHANNEL_PRIV,
+                                        0, 2, tmp, len);
     goto out;
   }
 
   /* Get destination client ID */
   tmp = silc_argument_get_arg_type(cmd->args, 2, &len);
   if (tmp) {
-    char invite[512];
     bool resolve;
 
     dest_id = silc_id_payload_parse_id(tmp, len, NULL);
@@ -2578,75 +1123,82 @@ SILC_SERVER_CMD_FUNC(invite)
     }
 
     /* Get the client entry */
-    dest = silc_server_get_client_resolve(server, dest_id, FALSE, &resolve);
+    dest = silc_server_query_client(server, dest_id, FALSE, &resolve);
     if (!dest) {
-      if (server->server_type != SILC_SERVER || !resolve) {
-       silc_server_command_send_status_reply(
+      if (server->server_type != SILC_SERVER || !resolve || cmd->pending) {
+       silc_server_command_send_status_data(
                                        cmd, SILC_COMMAND_INVITE,
-                                       SILC_STATUS_ERR_NO_SUCH_CLIENT_ID, 0);
+                                       SILC_STATUS_ERR_NO_SUCH_CLIENT_ID, 0,
+                                       2, tmp, len);
        goto out;
       }
-      
+
       /* The client info is being resolved. Reprocess this packet after
         receiving the reply to the query. */
-      silc_server_command_pending(server, SILC_COMMAND_WHOIS, 
+      silc_server_command_pending(server, SILC_COMMAND_WHOIS,
                                  server->cmd_ident,
-                                 silc_server_command_invite, 
+                                 silc_server_command_invite,
                                  silc_server_command_dup(cmd));
       cmd->pending = TRUE;
-      silc_free(channel_id);
-      silc_free(dest_id);
       goto out;
     }
 
     /* Check whether the requested client is already on the channel. */
     if (silc_server_client_on_channel(dest, channel, NULL)) {
-      silc_server_command_send_status_reply(cmd, SILC_COMMAND_INVITE,
+      atype = silc_argument_get_arg_type(cmd->args, 1, &len2);
+      silc_server_command_send_status_data2(cmd, SILC_COMMAND_INVITE,
                                            SILC_STATUS_ERR_USER_ON_CHANNEL,
-                                           0);
+                                           0, 2, tmp, len,
+                                           3, atype, len2);
       goto out;
     }
-    
+
     /* Get route to the client */
-    dest_sock = silc_server_get_client_route(server, NULL, 0, dest_id, 
+    dest_sock = silc_server_get_client_route(server, NULL, 0, dest_id,
                                             &idata, NULL);
     if (!dest_sock) {
-      silc_server_command_send_status_reply(cmd, SILC_COMMAND_INVITE,
-                                           SILC_STATUS_ERR_NO_SUCH_CLIENT_ID,
-                                           0);
+      silc_server_command_send_status_data(cmd, SILC_COMMAND_INVITE,
+                                          SILC_STATUS_ERR_NO_SUCH_CLIENT_ID,
+                                          0, 2, tmp, len);
       goto out;
     }
 
-    memset(invite, 0, sizeof(invite));
-    strncat(invite, dest->nickname, strlen(dest->nickname));
-    strncat(invite, "!", 1);
-    strncat(invite, dest->username, strlen(dest->username));
-    if (!strchr(dest->username, '@')) {
-      strncat(invite, "@", 1);
-      strncat(invite, cmd->sock->hostname, strlen(cmd->sock->hostname));
-    }
+    /* Add the client to the invite list */
 
-    len = strlen(invite);
+    /* Allocate hash table for invite list if it doesn't exist yet */
     if (!channel->invite_list)
-      channel->invite_list = silc_calloc(len + 2, 
-                                        sizeof(*channel->invite_list));
-    else
-      channel->invite_list = silc_realloc(channel->invite_list, 
-                                         sizeof(*channel->invite_list) * 
-                                         (len + 
-                                          strlen(channel->invite_list) + 2));
-    strncat(channel->invite_list, invite, len);
-    strncat(channel->invite_list, ",", 1);
+      channel->invite_list =
+       silc_hash_table_alloc(0, silc_hash_ptr,
+                             NULL, NULL, NULL,
+                             silc_server_inviteban_destruct, channel, TRUE);
+
+    /* Check if the ID is in the list already */
+    silc_hash_table_list(channel->invite_list, &htl);
+    while (silc_hash_table_get(&htl, (void **)&type, (void **)&tmp2)) {
+      if (type == 3 && !memcmp(tmp2->data, tmp, len)) {
+       tmp = NULL;
+       break;
+      }
+    }
+    silc_hash_table_list_reset(&htl);
+
+    /* Add new Client ID to invite list */
+    if (tmp) {
+      list = silc_buffer_alloc_size(len);
+      silc_buffer_put(list, tmp, len);
+      silc_hash_table_add(channel->invite_list, (void *)3, list);
+    }
 
     if (!(dest->mode & SILC_UMODE_BLOCK_INVITE)) {
       /* Send notify to the client that is invited to the channel */
+      SilcBuffer idp, idp2;
       idp = silc_id_payload_encode(channel_id, SILC_ID_CHANNEL);
       idp2 = silc_id_payload_encode(sender->id, SILC_ID_CLIENT);
-      silc_server_send_notify_dest(server, dest_sock, FALSE, dest_id, 
+      silc_server_send_notify_dest(server, dest_sock, FALSE, dest_id,
                                   SILC_ID_CLIENT,
-                                  SILC_NOTIFY_TYPE_INVITE, 3, 
-                                  idp->data, idp->len, 
-                                  channel->channel_name, 
+                                  SILC_NOTIFY_TYPE_INVITE, 3,
+                                  idp->data, idp->len,
+                                  channel->channel_name,
                                   strlen(channel->channel_name),
                                   idp2->data, idp2->len);
       silc_buffer_free(idp);
@@ -2654,71 +1206,112 @@ SILC_SERVER_CMD_FUNC(invite)
     }
   }
 
-  /* Add the client to the invite list of the channel */
-  add = silc_argument_get_arg_type(cmd->args, 3, &len);
-  if (add) {
-    if (!channel->invite_list)
-      channel->invite_list = silc_calloc(len + 2, 
-                                        sizeof(*channel->invite_list));
-    else
-      channel->invite_list = silc_realloc(channel->invite_list, 
-                                         sizeof(*channel->invite_list) * 
-                                         (len + 
-                                          strlen(channel->invite_list) + 2));
-    if (add[len - 1] == ',')
-      add[len - 1] = '\0';
-    
-    strncat(channel->invite_list, add, len);
-    strncat(channel->invite_list, ",", 1);
-  }
-
-  /* Get the invite to be removed and remove it from the list */
-  del = silc_argument_get_arg_type(cmd->args, 4, &len);
-  if (del && channel->invite_list) {
-    char *start, *end, *n;
-
-    if (!strncmp(channel->invite_list, del, 
-                strlen(channel->invite_list) - 1)) {
-      silc_free(channel->invite_list);
-      channel->invite_list = NULL;
-    } else {
-      start = strstr(channel->invite_list, del);
-      if (start && strlen(start) >= len) {
-       end = start + len;
-       n = silc_calloc(strlen(channel->invite_list) - len, sizeof(*n));
-       strncat(n, channel->invite_list, start - channel->invite_list);
-       strncat(n, end + 1, ((channel->invite_list + 
-                             strlen(channel->invite_list)) - end) - 1);
-       silc_free(channel->invite_list);
-       channel->invite_list = n;
+  /* Get the invite information */
+  tmp = silc_argument_get_arg_type(cmd->args, 4, &len2);
+  if (tmp && len2 > 2) {
+    /* Parse the arguments to see they are constructed correctly */
+    SILC_GET16_MSB(argc, tmp);
+    args = silc_argument_payload_parse(tmp + 2, len2 - 2, argc);
+    if (!args) {
+      silc_server_command_send_status_reply(cmd, SILC_COMMAND_INVITE,
+                                           SILC_STATUS_ERR_NOT_ENOUGH_PARAMS,
+                                           0);
+      goto out;
+    }
+
+    /* Get the type of action */
+    atype = silc_argument_get_arg_type(cmd->args, 3, &len);
+    if (atype && len == 1) {
+      if (atype[0] == 0x00) {
+       /* Allocate hash table for invite list if it doesn't exist yet */
+       if (!channel->invite_list)
+         channel->invite_list =
+           silc_hash_table_alloc(0, silc_hash_ptr,
+                                 NULL, NULL, NULL,
+                                 silc_server_inviteban_destruct, channel,
+                                 TRUE);
+
+       /* Check for resource limit */
+       if (silc_hash_table_count(channel->invite_list) > 64) {
+         silc_server_command_send_status_reply(cmd, SILC_COMMAND_INVITE,
+                                               SILC_STATUS_ERR_RESOURCE_LIMIT,
+                                               0);
+         goto out;
+       }
       }
+
+      /* Now add or delete the information. */
+      silc_server_inviteban_process(server, channel->invite_list,
+                                   (SilcUInt8)atype[0], args);
     }
+    silc_argument_payload_free(args);
   }
 
-  /* Send notify to the primary router */
-  silc_server_send_notify_invite(server, SILC_PRIMARY_ROUTE(server),
-                                SILC_BROADCAST(server), channel,
-                                sender->id, add, del);
+  /* Encode invite list */
+  list = NULL;
+  if (channel->invite_list && silc_hash_table_count(channel->invite_list)) {
+    list = silc_buffer_alloc_size(2);
+    silc_buffer_format(list,
+                      SILC_STR_UI_SHORT(silc_hash_table_count(
+                                         channel->invite_list)),
+                      SILC_STR_END);
+    silc_hash_table_list(channel->invite_list, &htl);
+    while (silc_hash_table_get(&htl, (void **)&type, (void **)&tmp2))
+      list = silc_argument_payload_encode_one(list, tmp2->data, tmp2->len,
+                                             type);
+    silc_hash_table_list_reset(&htl);
+  }
+
+  /* The notify is sent to local servers (not clients), and to network. */
+  if (atype && tmp && len2) {
+    silc_buffer_set(&alist, tmp, len2);
+
+    /* Send to local servers if we are router */
+    if (server->server_type == SILC_ROUTER) {
+      SilcBuffer idp, idp2;
+      idp = silc_id_payload_encode(channel_id, SILC_ID_CHANNEL);
+      idp2 = silc_id_payload_encode(sender->id, SILC_ID_CLIENT);
+      silc_server_send_notify_to_channel(server, NULL, channel, FALSE, FALSE,
+                                         SILC_NOTIFY_TYPE_INVITE, 5,
+                                        idp->data, idp->len,
+                                        channel->channel_name,
+                                        strlen(channel->channel_name),
+                                        idp2->data, idp2->len,
+                                        atype, 1,
+                                        tmp ? alist.data : NULL,
+                                        tmp ? alist.len : 0);
+      silc_buffer_free(idp);
+      silc_buffer_free(idp2);
+    }
+
+    /* Send to network */
+    silc_server_send_notify_invite(server, SILC_PRIMARY_ROUTE(server),
+                                  SILC_BROADCAST(server), channel,
+                                  sender->id, atype,
+                                  tmp ? &alist : NULL);
+  }
+
+  /* Send invite list back only if the list was modified, or no arguments
+     was given. */
+  type = 0;
+  argc = silc_argument_get_arg_num(cmd->args);
+  if (argc == 1)
+    type = 1;
+  if (silc_argument_get_arg_type(cmd->args, 3, &len))
+    type = 1;
 
   /* Send command reply */
   tmp = silc_argument_get_arg_type(cmd->args, 1, &len);
-
-  if (add || del)
-    packet = 
-      silc_command_reply_payload_encode_va(SILC_COMMAND_INVITE,
-                                          SILC_STATUS_OK, 0, ident, 2,
-                                          2, tmp, len,
-                                          3, channel->invite_list,
-                                          channel->invite_list ?
-                                          strlen(channel->invite_list) : 0);
-  else
-    packet = 
-      silc_command_reply_payload_encode_va(SILC_COMMAND_INVITE,
-                                          SILC_STATUS_OK, 0, ident, 1,
-                                          2, tmp, len);
-  silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0, 
+  packet = silc_command_reply_payload_encode_va(SILC_COMMAND_INVITE,
+                                               SILC_STATUS_OK, 0, ident, 2,
+                                               2, tmp, len,
+                                               3, type && list ?
+                                               list->data : NULL,
+                                               type && list ? list->len : 0);
+  silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0,
                          packet->data, packet->len, FALSE);
   silc_buffer_free(packet);
+  silc_buffer_free(list);
 
  out:
   silc_free(dest_id);
@@ -2727,7 +1320,6 @@ SILC_SERVER_CMD_FUNC(invite)
 }
 
 typedef struct {
-  SilcServer server;
   SilcSocketConnection sock;
   char *signoff;
 } *QuitInternal;
@@ -2737,23 +1329,25 @@ typedef struct {
 
 SILC_TASK_CALLBACK(silc_server_command_quit_cb)
 {
+  SilcServer server = app_context;
   QuitInternal q = (QuitInternal)context;
 
   /* Free all client specific data, such as client entry and entires
      on channels this client may be on. */
-  silc_server_free_client_data(q->server, q->sock, q->sock->user_data,
+  silc_server_free_client_data(server, q->sock, q->sock->user_data,
                               TRUE, q->signoff);
   q->sock->user_data = NULL;
 
   /* Close the connection on our side */
-  silc_server_close_connection(q->server, q->sock);
+  silc_server_close_connection(server, q->sock);
 
+  silc_socket_free(q->sock);
   silc_free(q->signoff);
   silc_free(q);
 }
 
 /* Quits SILC session. This is the normal way to disconnect client. */
+
 SILC_SERVER_CMD_FUNC(quit)
 {
   SilcServerCommandContext cmd = (SilcServerCommandContext)context;
@@ -2774,8 +1368,7 @@ SILC_SERVER_CMD_FUNC(quit)
     tmp = NULL;
 
   q = silc_calloc(1, sizeof(*q));
-  q->server = server;
-  q->sock = sock;
+  q->sock = silc_socket_dup(sock);
   q->signoff = tmp ? strdup(tmp) : NULL;
 
   /* We quit the connection with little timeout */
@@ -2796,28 +1389,34 @@ SILC_SERVER_CMD_FUNC(kill)
   SilcServer server = cmd->server;
   SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
   SilcClientEntry remote_client;
-  SilcClientID *client_id;
-  unsigned char *tmp, *comment;
-  SilcUInt32 tmp_len, tmp_len2;
-  bool local;
+  SilcClientID *client_id = NULL;
+  unsigned char *tmp, *comment, *auth;
+  SilcUInt32 tmp_len, tmp_len2, auth_len;
 
-  SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_KILL, cmd, 1, 2);
+  SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_KILL, cmd, 1, 3);
 
   if (cmd->sock->type != SILC_SOCKET_TYPE_CLIENT || !client)
     goto out;
 
-  /* KILL command works only on router */
-  if (server->server_type != SILC_ROUTER) {
-    silc_server_command_send_status_reply(cmd, SILC_COMMAND_KILL,
-                                         SILC_STATUS_ERR_NO_ROUTER_PRIV, 0);
-    goto out;
-  }
+  /* Get authentication payload if present */
+  auth = silc_argument_get_arg_type(cmd->args, 3, &auth_len);
 
-  /* Check whether client has the permissions. */
-  if (!(client->mode & SILC_UMODE_ROUTER_OPERATOR)) {
-    silc_server_command_send_status_reply(cmd, SILC_COMMAND_KILL,
-                                         SILC_STATUS_ERR_NO_ROUTER_PRIV, 0);
-    goto out;
+  if (!auth) {
+    /* Router operator killing */
+
+    /* KILL command works only on router */
+    if (server->server_type != SILC_ROUTER) {
+      silc_server_command_send_status_reply(cmd, SILC_COMMAND_KILL,
+                                           SILC_STATUS_ERR_NO_ROUTER_PRIV, 0);
+      goto out;
+    }
+
+    /* Check whether client has the permissions. */
+    if (!(client->mode & SILC_UMODE_ROUTER_OPERATOR)) {
+      silc_server_command_send_status_reply(cmd, SILC_COMMAND_KILL,
+                                           SILC_STATUS_ERR_NO_ROUTER_PRIV, 0);
+      goto out;
+    }
   }
 
   /* Get the client ID */
@@ -2830,52 +1429,94 @@ SILC_SERVER_CMD_FUNC(kill)
   }
   client_id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
   if (!client_id) {
-    silc_server_command_send_status_reply(cmd, SILC_COMMAND_KILL,
-                                         SILC_STATUS_ERR_NO_SUCH_CLIENT_ID,
-                                         0);
+    silc_server_command_send_status_data(cmd, SILC_COMMAND_KILL,
+                                        SILC_STATUS_ERR_NO_SUCH_CLIENT_ID,
+                                        0, 2, tmp, tmp_len);
     goto out;
   }
 
   /* Get the client entry */
-  remote_client = silc_idlist_find_client_by_id(server->local_list, 
+  remote_client = silc_idlist_find_client_by_id(server->local_list,
                                                client_id, TRUE, NULL);
-  local = TRUE;
   if (!remote_client) {
-    remote_client = silc_idlist_find_client_by_id(server->global_list, 
+    remote_client = silc_idlist_find_client_by_id(server->global_list,
                                                  client_id, TRUE, NULL);
-    local = FALSE;
     if (!remote_client) {
-      silc_server_command_send_status_reply(cmd, SILC_COMMAND_KILL,
-                                           SILC_STATUS_ERR_NO_SUCH_CLIENT_ID,
-                                           0);
+      silc_server_command_send_status_data(cmd, SILC_COMMAND_KILL,
+                                          SILC_STATUS_ERR_NO_SUCH_CLIENT_ID,
+                                          0, 2, tmp, tmp_len);
       goto out;
     }
   }
 
   /* Get comment */
   comment = silc_argument_get_arg_type(cmd->args, 2, &tmp_len2);
-  if (tmp_len2 > 128)
+  if (comment && tmp_len2 > 128) {
     tmp_len2 = 128;
+    comment[127] = '\0';
+  }
+
+  /* If authentication data is provided then verify that killing is
+     actually allowed */
+  if (auth && auth_len) {
+    SilcSocketConnection sock;
+
+    if (!SILC_IS_LOCAL(remote_client) || !remote_client->data.public_key) {
+      silc_server_command_send_status_reply(cmd, SILC_COMMAND_KILL,
+                                           SILC_STATUS_ERR_OPERATION_ALLOWED,
+                                           0);
+      goto out;
+    }
+
+    /* Verify the signature */
+    if (!silc_auth_verify_data(auth, auth_len, SILC_AUTH_PUBLIC_KEY,
+                              remote_client->data.public_key, 0,
+                              server->sha1hash, remote_client->id,
+                              SILC_ID_CLIENT)) {
+      silc_server_command_send_status_reply(cmd, SILC_COMMAND_KILL,
+                                           SILC_STATUS_ERR_AUTH_FAILED, 0);
+      goto out;
+    }
 
-  /* Send reply to the sender */
-  silc_server_command_send_status_reply(cmd, SILC_COMMAND_KILL,
-                                       SILC_STATUS_OK, 0);
+    /* Send reply to the sender */
+    silc_server_command_send_status_data(cmd, SILC_COMMAND_KILL,
+                                        SILC_STATUS_OK, 0,
+                                        2, tmp, tmp_len);
+
+    /* Do normal signoff for the destination client */
+    sock = remote_client->connection;
+    silc_server_remove_from_channels(server, NULL, remote_client,
+                                    TRUE, (char *)"Killed", TRUE, TRUE);
+    silc_server_free_client_data(server, NULL, remote_client, TRUE,
+                                comment ? comment :
+                                (unsigned char *)"Killed");
+    if (sock)
+      silc_server_close_connection(server, sock);
+  } else {
+    /* Router operator killing */
 
-  /* Check if anyone is watching this nickname */
-  if (server->server_type == SILC_ROUTER)
-    silc_server_check_watcher_list(server, client, NULL,
-                                  SILC_NOTIFY_TYPE_KILLED);
+    /* Send reply to the sender */
+    silc_server_command_send_status_data(cmd, SILC_COMMAND_KILL,
+                                        SILC_STATUS_OK, 0,
+                                        2, tmp, tmp_len);
+
+    /* Check if anyone is watching this nickname */
+    if (server->server_type == SILC_ROUTER)
+      silc_server_check_watcher_list(server, client, NULL,
+                                    SILC_NOTIFY_TYPE_KILLED);
 
-  /* Now do the killing */
-  silc_server_kill_client(server, remote_client, comment, client->id,
-                         SILC_ID_CLIENT);
+    /* Now do the killing */
+    silc_server_kill_client(server, remote_client, comment, client->id,
+                           SILC_ID_CLIENT);
+  }
 
  out:
+  silc_free(client_id);
   silc_server_command_free(cmd);
 }
 
-/* Server side of command INFO. This sends information about us to 
-   the client. If client requested specific server we will send the 
+/* Server side of command INFO. This sends information about us to
+   the client. If client requested specific server we will send the
    command to that server. */
 
 SILC_SERVER_CMD_FUNC(info)
@@ -2914,9 +1555,9 @@ SILC_SERVER_CMD_FUNC(info)
       entry = silc_idlist_find_server_by_id(server->global_list,
                                            server_id, TRUE, NULL);
       if (!entry && server->server_type != SILC_SERVER) {
-       silc_server_command_send_status_reply(cmd, SILC_COMMAND_INFO,
-                                             SILC_STATUS_ERR_NO_SUCH_SERVER,
-                                             0);
+       silc_server_command_send_status_data(cmd, SILC_COMMAND_INFO,
+                                            SILC_STATUS_ERR_NO_SUCH_SERVER_ID,
+                                            0, 2, tmp, tmp_len);
        goto out;
       }
     }
@@ -2926,15 +1567,15 @@ SILC_SERVER_CMD_FUNC(info)
   if (server->server_type != SILC_SERVER && cmd->sock->user_data == entry)
     goto out;
 
-  if ((!dest_server && !server_id && !entry) || (entry && 
+  if ((!dest_server && !server_id && !entry) || (entry &&
                                                 entry == server->id_entry) ||
-      (dest_server && !cmd->pending && 
+      (dest_server && !cmd->pending &&
        !strncasecmp(dest_server, server->server_name, strlen(dest_server)))) {
     /* Send our reply */
     char info_string[256];
 
     memset(info_string, 0, sizeof(info_string));
-    snprintf(info_string, sizeof(info_string), 
+    snprintf(info_string, sizeof(info_string),
             "location: %s server: %s admin: %s <%s>",
             server->config->server_info->location,
             server->config->server_info->server_type,
@@ -2969,7 +1610,7 @@ SILC_SERVER_CMD_FUNC(info)
                              tmpbuf->data, tmpbuf->len, TRUE);
 
       /* Reprocess this packet after received reply from router */
-      silc_server_command_pending(server, SILC_COMMAND_INFO, 
+      silc_server_command_pending(server, SILC_COMMAND_INFO,
                                  silc_command_get_ident(cmd->payload),
                                  silc_server_command_info,
                                  silc_server_command_dup(cmd));
@@ -2993,7 +1634,7 @@ SILC_SERVER_CMD_FUNC(info)
                              tmpbuf->data, tmpbuf->len, TRUE);
 
       /* Reprocess this packet after received reply from router */
-      silc_server_command_pending(server, SILC_COMMAND_INFO, 
+      silc_server_command_pending(server, SILC_COMMAND_INFO,
                                  silc_command_get_ident(cmd->payload),
                                  silc_server_command_info,
                                  silc_server_command_dup(cmd));
@@ -3007,8 +1648,11 @@ SILC_SERVER_CMD_FUNC(info)
   silc_free(server_id);
 
   if (!entry) {
-    silc_server_command_send_status_reply(cmd, SILC_COMMAND_INFO,
-                                         SILC_STATUS_ERR_NO_SUCH_SERVER, 0);
+    if (dest_server)
+      silc_server_command_send_status_data(cmd, SILC_COMMAND_INFO,
+                                          SILC_STATUS_ERR_NO_SUCH_SERVER, 0,
+                                          2, dest_server,
+                                          strlen(dest_server));
     goto out;
   }
 
@@ -3021,14 +1665,14 @@ SILC_SERVER_CMD_FUNC(info)
   packet = silc_command_reply_payload_encode_va(SILC_COMMAND_INFO,
                                                SILC_STATUS_OK, 0, ident, 3,
                                                2, idp->data, idp->len,
-                                               3, server_name, 
+                                               3, server_name,
                                                strlen(server_name),
-                                               4, server_info, 
-                                               server_info ? 
+                                               4, server_info,
+                                               server_info ?
                                                strlen(server_info) : 0);
-  silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0, 
+  silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0,
                          packet->data, packet->len, FALSE);
-    
+
   silc_buffer_free(packet);
   silc_buffer_free(idp);
 
@@ -3042,36 +1686,37 @@ SILC_SERVER_CMD_FUNC(ping)
 {
   SilcServerCommandContext cmd = (SilcServerCommandContext)context;
   SilcServer server = cmd->server;
-  SilcServerID *id;
-  SilcUInt32 len;
+  SilcUInt32 tmp_len;
   unsigned char *tmp;
+  SilcServerID *server_id = NULL;
 
-  SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_INFO, cmd, 1, 2);
+  SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_PING, cmd, 1, 1);
 
   /* Get Server ID */
-  tmp = silc_argument_get_arg_type(cmd->args, 1, &len);
+  tmp = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
   if (!tmp) {
     silc_server_command_send_status_reply(cmd, SILC_COMMAND_PING,
-                                         SILC_STATUS_ERR_NO_SERVER_ID, 0);
+                                         SILC_STATUS_ERR_NOT_ENOUGH_PARAMS,
+                                         0);
     goto out;
   }
-  id = silc_id_str2id(tmp, len, SILC_ID_SERVER);
-  if (!id)
+  server_id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
+  if (!server_id)
     goto out;
 
-  if (SILC_ID_SERVER_COMPARE(id, server->id)) {
+  if (SILC_ID_SERVER_COMPARE(server_id, server->id)) {
     /* Send our reply */
     silc_server_command_send_status_reply(cmd, SILC_COMMAND_PING,
                                          SILC_STATUS_OK, 0);
   } else {
-    silc_server_command_send_status_reply(cmd, SILC_COMMAND_PING,
-                                         SILC_STATUS_ERR_NO_SUCH_SERVER, 0);
+    silc_server_command_send_status_data(cmd, SILC_COMMAND_PING,
+                                        SILC_STATUS_ERR_NO_SUCH_SERVER_ID, 0,
+                                        2, tmp, tmp_len);
     goto out;
   }
 
-  silc_free(id);
-
  out:
+  silc_free(server_id);
   silc_server_command_free(cmd);
 }
 
@@ -3093,7 +1738,7 @@ SILC_SERVER_CMD_FUNC(stats)
   /* Get Server ID */
   tmp = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
   if (!tmp) {
-    silc_server_command_send_status_reply(cmd, SILC_COMMAND_INFO,
+    silc_server_command_send_status_reply(cmd, SILC_COMMAND_STATS,
                                          SILC_STATUS_ERR_NO_SERVER_ID, 0);
     goto out;
   }
@@ -3103,8 +1748,9 @@ SILC_SERVER_CMD_FUNC(stats)
 
   /* The ID must be ours */
   if (!SILC_ID_SERVER_COMPARE(server->id, server_id)) {
-    silc_server_command_send_status_reply(cmd, SILC_COMMAND_INFO,
-                                         SILC_STATUS_ERR_NO_SUCH_SERVER, 0);
+    silc_server_command_send_status_data(cmd, SILC_COMMAND_STATS,
+                                        SILC_STATUS_ERR_NO_SUCH_SERVER_ID, 0,
+                                        2, tmp, tmp_len);
     silc_free(server_id);
     goto out;
   }
@@ -3113,12 +1759,12 @@ SILC_SERVER_CMD_FUNC(stats)
   /* If we are router then just send everything we got. If we are normal
      server then we'll send this to our router to get all the latest
      statistical information. */
-  if (!cmd->pending && server->server_type != SILC_ROUTER && 
+  if (!cmd->pending && server->server_type != SILC_ROUTER &&
       !server->standalone) {
     /* Send request to our router */
-    SilcBuffer idp = silc_id_payload_encode(server->router->id, 
+    SilcBuffer idp = silc_id_payload_encode(server->router->id,
                                            SILC_ID_SERVER);
-    packet = silc_command_payload_encode_va(SILC_COMMAND_STATS, 
+    packet = silc_command_payload_encode_va(SILC_COMMAND_STATS,
                                            ++server->cmd_ident, 1,
                                            1, idp->data, idp->len);
     silc_server_packet_send(server, SILC_PRIMARY_ROUTE(server),
@@ -3126,7 +1772,7 @@ SILC_SERVER_CMD_FUNC(stats)
                            packet->len, FALSE);
 
     /* Reprocess this packet after received reply from router */
-    silc_server_command_pending(server, SILC_COMMAND_STATS, 
+    silc_server_command_pending(server, SILC_COMMAND_STATS,
                                server->cmd_ident,
                                silc_server_command_stats,
                                silc_server_command_dup(cmd));
@@ -3158,7 +1804,7 @@ SILC_SERVER_CMD_FUNC(stats)
                     SILC_STR_UI_INT(server->stat.router_ops),
                     SILC_STR_END);
 
-  packet = silc_command_reply_payload_encode_va(SILC_COMMAND_STATS, 
+  packet = silc_command_reply_payload_encode_va(SILC_COMMAND_STATS,
                                                SILC_STATUS_OK, 0, ident, 2,
                                                2, tmp, tmp_len,
                                                3, stats->data, stats->len);
@@ -3175,7 +1821,7 @@ SILC_SERVER_CMD_FUNC(stats)
    has been either created or resolved from ID lists. This joins the sent
    client to the channel. */
 
-static void silc_server_command_join_channel(SilcServer server, 
+static void silc_server_command_join_channel(SilcServer server,
                                             SilcServerCommandContext cmd,
                                             SilcChannelEntry channel,
                                             SilcClientID *client_id,
@@ -3183,7 +1829,9 @@ static void silc_server_command_join_channel(SilcServer server,
                                             bool create_key,
                                             SilcUInt32 umode,
                                             const unsigned char *auth,
-                                            SilcUInt32 auth_len)
+                                            SilcUInt32 auth_len,
+                                            const unsigned char *cauth,
+                                            SilcUInt32 cauth_len)
 {
   SilcSocketConnection sock = cmd->sock;
   unsigned char *tmp;
@@ -3191,13 +1839,14 @@ static void silc_server_command_join_channel(SilcServer server,
   unsigned char *passphrase = NULL, mode[4], tmp2[4], tmp3[4];
   SilcClientEntry client;
   SilcChannelClientEntry chl;
-  SilcBuffer reply, chidp, clidp, keyp = NULL, user_list, mode_list;
+  SilcBuffer reply, chidp, clidp, keyp = NULL;
+  SilcBuffer user_list, mode_list, invite_list, ban_list;
   SilcUInt16 ident = silc_command_get_ident(cmd->payload);
   char check[512], check2[512];
   bool founder = FALSE;
   bool resolve;
-  unsigned char *fkey = NULL;
-  SilcUInt32 fkey_len = 0;
+  SilcBuffer fkey = NULL, chpklist = NULL;
+  const char *cipher;
 
   SILC_LOG_DEBUG(("Joining client to channel"));
 
@@ -3210,13 +1859,10 @@ static void silc_server_command_join_channel(SilcServer server,
     if (!client)
       return;
   } else {
-    client = silc_server_get_client_resolve(server, client_id, FALSE, 
-                                           &resolve);
+    client = silc_server_query_client(server, client_id, FALSE,
+                                     &resolve);
     if (!client) {
-      if (cmd->pending)
-       goto out;
-
-      if (!resolve) {
+      if (!resolve || cmd->pending) {
        silc_server_command_send_status_reply(
                                         cmd, SILC_COMMAND_JOIN,
                                         SILC_STATUS_ERR_NOT_ENOUGH_PARAMS, 0);
@@ -3225,14 +1871,35 @@ static void silc_server_command_join_channel(SilcServer server,
 
       /* The client info is being resolved. Reprocess this packet after
         receiving the reply to the query. */
-      silc_server_command_pending(server, SILC_COMMAND_WHOIS, 
+      silc_server_command_pending(server, SILC_COMMAND_WHOIS,
                                  server->cmd_ident,
-                                 silc_server_command_join, 
+                                 silc_server_command_join,
                                  silc_server_command_dup(cmd));
       cmd->pending = TRUE;
       goto out;
     }
 
+    if (!client->data.public_key &&
+       (auth || cauth || channel->ban_list ||
+        (channel->mode & SILC_CHANNEL_MODE_INVITE))) {
+      if (cmd->pending == 2)
+       goto out;
+
+      /* We must retrieve the client's public key by sending
+        GETKEY command. Reprocess this packet after receiving the key */
+      clidp = silc_id_payload_encode(client_id, SILC_ID_CLIENT);
+      silc_server_send_command(server, cmd->sock,
+                              SILC_COMMAND_GETKEY, ++server->cmd_ident,
+                              1, 1, clidp->data, clidp->len);
+      silc_buffer_free(clidp);
+      silc_server_command_pending(server, SILC_COMMAND_GETKEY,
+                                 server->cmd_ident,
+                                 silc_server_command_join,
+                                 silc_server_command_dup(cmd));
+      cmd->pending = 2;
+      goto out;
+    }
+
     cmd->pending = FALSE;
   }
 
@@ -3247,7 +1914,7 @@ static void silc_server_command_join_channel(SilcServer server,
     SilcHashTableList htl;
 
     if (channel->founder_key && idata->public_key &&
-       silc_pkcs_public_key_compare(channel->founder_key, 
+       silc_pkcs_public_key_compare(channel->founder_key,
                                     idata->public_key)) {
       /* Check whether the client is to become founder */
       if (silc_auth_verify_data(auth, auth_len, SILC_AUTH_PUBLIC_KEY,
@@ -3279,33 +1946,52 @@ static void silc_server_command_join_channel(SilcServer server,
   if (!umode) {
     memset(check, 0, sizeof(check));
     memset(check2, 0, sizeof(check2));
-    strncat(check, client->nickname, strlen(client->nickname));
-    strncat(check, "!", 1);
-    strncat(check, client->username, strlen(client->username));
+    silc_strncat(check, sizeof(check),
+                client->nickname, strlen(client->nickname));
+    silc_strncat(check, sizeof(check), "!", 1);
+    silc_strncat(check, sizeof(check),
+                client->username, strlen(client->username));
     if (!strchr(client->username, '@')) {
-      strncat(check, "@", 1);
-      strncat(check, cmd->sock->hostname, strlen(cmd->sock->hostname));
+      silc_strncat(check, sizeof(check), "@", 1);
+      silc_strncat(check, sizeof(check),
+                  cmd->sock->hostname, strlen(cmd->sock->hostname));
     }
 
-    strncat(check2, client->nickname, strlen(client->nickname));
+    silc_strncat(check2, sizeof(check2),
+                client->nickname, strlen(client->nickname));
     if (!strchr(client->nickname, '@')) {
-      strncat(check2, "@", 1);
-      strncat(check2, server->server_name, strlen(server->server_name));
+      silc_strncat(check2, sizeof(check2), "@", 1);
+      silc_strncat(check2, sizeof(check2),
+                  server->server_name, strlen(server->server_name));
     }
-    strncat(check2, "!", 1);
-    strncat(check2, client->username, strlen(client->username));
+    silc_strncat(check2, sizeof(check2), "!", 1);
+    silc_strncat(check2, sizeof(check2),
+                client->username, strlen(client->username));
     if (!strchr(client->username, '@')) {
-      strncat(check2, "@", 1);
-      strncat(check2, cmd->sock->hostname, strlen(cmd->sock->hostname));
+      silc_strncat(check2, sizeof(check2), "@", 1);
+      silc_strncat(check2, sizeof(check2),
+                  cmd->sock->hostname, strlen(cmd->sock->hostname));
     }
-    
+
     /* Check invite list if channel is invite-only channel */
     if (channel->mode & SILC_CHANNEL_MODE_INVITE) {
       if (!channel->invite_list ||
-         (!silc_string_match(channel->invite_list, check) &&
-          !silc_string_match(channel->invite_list, check2))) {
-       silc_server_command_send_status_reply(cmd, SILC_COMMAND_JOIN,
-                                             SILC_STATUS_ERR_NOT_INVITED, 0);
+         !silc_hash_table_count(channel->invite_list) ||
+         (!silc_server_inviteban_match(server, channel->invite_list,
+                                       3, client->id) &&
+          !silc_server_inviteban_match(server, channel->invite_list,
+                                       2, client->data.public_key) &&
+          !silc_server_inviteban_match(server, channel->invite_list,
+                                       1, client->nickname) &&
+          !silc_server_inviteban_match(server, channel->invite_list,
+                                       1, check) &&
+          !silc_server_inviteban_match(server, channel->invite_list,
+                                       1, check2))) {
+       chidp = silc_id_payload_encode(channel->id, SILC_ID_CHANNEL);
+       silc_server_command_send_status_data(cmd, SILC_COMMAND_JOIN,
+                                            SILC_STATUS_ERR_NOT_INVITED, 0,
+                                            2, chidp->data, chidp->len);
+       silc_buffer_free(chidp);
        goto out;
       }
     }
@@ -3313,23 +1999,36 @@ static void silc_server_command_join_channel(SilcServer server,
     /* Check ban list if it exists. If the client's nickname, server,
        username and/or hostname is in the ban list the access to the
        channel is denied. */
-    if (channel->ban_list) {
-      if (silc_string_match(channel->ban_list, check) ||
-         silc_string_match(channel->ban_list, check2)) {
-       silc_server_command_send_status_reply(
+    if (channel->ban_list && silc_hash_table_count(channel->ban_list)) {
+      if (silc_server_inviteban_match(server, channel->ban_list,
+                                     3, client->id) ||
+         silc_server_inviteban_match(server, channel->ban_list,
+                                     2, client->data.public_key) ||
+         silc_server_inviteban_match(server, channel->ban_list,
+                                     1, client->nickname) ||
+         silc_server_inviteban_match(server, channel->ban_list,
+                                     1, check) ||
+         silc_server_inviteban_match(server, channel->ban_list,
+                                     1, check2)) {
+       chidp = silc_id_payload_encode(channel->id, SILC_ID_CHANNEL);
+       silc_server_command_send_status_data(
                                      cmd, SILC_COMMAND_JOIN,
-                                     SILC_STATUS_ERR_BANNED_FROM_CHANNEL, 0);
+                                     SILC_STATUS_ERR_BANNED_FROM_CHANNEL, 0,
+                                     2, chidp->data, chidp->len);
+       silc_buffer_free(chidp);
        goto out;
       }
     }
-    
+
     /* Check user count limit if set. */
     if (channel->mode & SILC_CHANNEL_MODE_ULIMIT) {
-      if (silc_hash_table_count(channel->user_list) + 1 > 
+      if (silc_hash_table_count(channel->user_list) + 1 >
          channel->user_limit) {
-       silc_server_command_send_status_reply(cmd, SILC_COMMAND_JOIN,
-                                             SILC_STATUS_ERR_CHANNEL_IS_FULL,
-                                             0);
+       chidp = silc_id_payload_encode(channel->id, SILC_ID_CHANNEL);
+       silc_server_command_send_status_data(cmd, SILC_COMMAND_JOIN,
+                                            SILC_STATUS_ERR_CHANNEL_IS_FULL,
+                                            0, 2, chidp->data, chidp->len);
+       silc_buffer_free(chidp);
        goto out;
       }
     }
@@ -3341,11 +2040,24 @@ static void silc_server_command_join_channel(SilcServer server,
     tmp = silc_argument_get_arg_type(cmd->args, 3, &tmp_len);
     if (tmp)
       passphrase = silc_memdup(tmp, tmp_len);
-  
+
     if (!passphrase || !channel->passphrase ||
         memcmp(passphrase, channel->passphrase, strlen(channel->passphrase))) {
+      chidp = silc_id_payload_encode(channel->id, SILC_ID_CHANNEL);
+      silc_server_command_send_status_data(cmd, SILC_COMMAND_JOIN,
+                                          SILC_STATUS_ERR_BAD_PASSWORD, 0,
+                                          2, chidp->data, chidp->len);
+      silc_buffer_free(chidp);
+      goto out;
+    }
+  }
+
+  /* Verify channel authentication with channel public keys if set. */
+  if (channel->mode & SILC_CHANNEL_MODE_CHANNEL_AUTH) {
+    if (!silc_server_verify_channel_auth(server, channel, client->id,
+                                        cauth, cauth_len)) {
       silc_server_command_send_status_reply(cmd, SILC_COMMAND_JOIN,
-                                           SILC_STATUS_ERR_BAD_PASSWORD, 0);
+                                           SILC_STATUS_ERR_PERM_DENIED, 0);
       goto out;
     }
   }
@@ -3356,8 +2068,14 @@ static void silc_server_command_join_channel(SilcServer server,
 
   /* Check whether the client already is on the channel */
   if (silc_server_client_on_channel(client, channel, NULL)) {
-    silc_server_command_send_status_reply(cmd, SILC_COMMAND_JOIN,
-                                         SILC_STATUS_ERR_USER_ON_CHANNEL, 0);
+    clidp = silc_id_payload_encode(client_id, SILC_ID_CLIENT);
+    chidp = silc_id_payload_encode(channel->id, SILC_ID_CHANNEL);
+    silc_server_command_send_status_data2(cmd, SILC_COMMAND_JOIN,
+                                         SILC_STATUS_ERR_USER_ON_CHANNEL, 0,
+                                         2, clidp->data, clidp->len,
+                                         3, chidp->data, chidp->len);
+    silc_buffer_free(clidp);
+    silc_buffer_free(chidp);
     goto out;
   }
 
@@ -3369,8 +2087,8 @@ static void silc_server_command_join_channel(SilcServer server,
     /* Send the channel key. This is broadcasted to the channel but is not
        sent to the client who is joining to the channel. */
     if (!(channel->mode & SILC_CHANNEL_MODE_PRIVKEY))
-      silc_server_send_channel_key(server, NULL, channel, 
-                                  server->server_type == SILC_ROUTER ? 
+      silc_server_send_channel_key(server, NULL, channel,
+                                  server->server_type == SILC_ROUTER ?
                                   FALSE : !server->standalone);
   }
 
@@ -3401,36 +2119,75 @@ static void silc_server_command_join_channel(SilcServer server,
 
   if (!(channel->mode & SILC_CHANNEL_MODE_PRIVKEY)) {
     tmp = silc_id_id2str(channel->id, SILC_ID_CHANNEL);
+    cipher = silc_cipher_get_name(channel->channel_key);
     keyp = silc_channel_key_payload_encode(silc_id_get_len(channel->id,
-                                                          SILC_ID_CHANNEL), 
+                                                          SILC_ID_CHANNEL),
                                           tmp,
-                                          strlen(channel->channel_key->
-                                                 cipher->name),
-                                          channel->channel_key->cipher->name,
+                                          strlen(cipher), cipher,
                                           channel->key_len / 8, channel->key);
     silc_free(tmp);
   }
 
   if (channel->founder_key)
-    fkey = silc_pkcs_public_key_encode(channel->founder_key, &fkey_len);
+    fkey = silc_pkcs_public_key_payload_encode(channel->founder_key);
 
-  reply = 
+  /* Encode invite list */
+  invite_list = NULL;
+  if (channel->invite_list && silc_hash_table_count(channel->invite_list)) {
+    SilcHashTableList htl;
+
+    invite_list = silc_buffer_alloc_size(2);
+    silc_buffer_format(invite_list,
+                      SILC_STR_UI_SHORT(silc_hash_table_count(
+                                         channel->invite_list)),
+                      SILC_STR_END);
+
+    silc_hash_table_list(channel->invite_list, &htl);
+    while (silc_hash_table_get(&htl, (void **)&tmp_len, (void **)&reply))
+      invite_list = silc_argument_payload_encode_one(invite_list,
+                                                    reply->data,
+                                                    reply->len, tmp_len);
+    silc_hash_table_list_reset(&htl);
+  }
+
+  /* Encode ban list */
+  ban_list = NULL;
+  if (channel->ban_list && silc_hash_table_count(channel->ban_list)) {
+    SilcHashTableList htl;
+
+    ban_list = silc_buffer_alloc_size(2);
+    silc_buffer_format(ban_list,
+                      SILC_STR_UI_SHORT(silc_hash_table_count(
+                                         channel->ban_list)),
+                      SILC_STR_END);
+
+    silc_hash_table_list(channel->ban_list, &htl);
+    while (silc_hash_table_get(&htl, (void **)&tmp_len, (void **)&reply))
+      ban_list = silc_argument_payload_encode_one(ban_list,
+                                                 reply->data,
+                                                 reply->len, tmp_len);
+    silc_hash_table_list_reset(&htl);
+  }
+
+  if (channel->channel_pubkeys)
+    chpklist = silc_server_get_channel_pk_list(server, channel, FALSE, FALSE);
+
+  reply =
     silc_command_reply_payload_encode_va(SILC_COMMAND_JOIN,
-                                        SILC_STATUS_OK, 0, ident, 14,
+                                        SILC_STATUS_OK, 0, ident, 15,
                                         2, channel->channel_name,
                                         strlen(channel->channel_name),
                                         3, chidp->data, chidp->len,
                                         4, clidp->data, clidp->len,
                                         5, mode, 4,
                                         6, tmp2, 4,
-                                        7, keyp ? keyp->data : NULL, 
+                                        7, keyp ? keyp->data : NULL,
                                         keyp ? keyp->len : 0,
-                                        8, channel->ban_list, 
-                                        channel->ban_list ?
-                                        strlen(channel->ban_list) : 0,
-                                        9, channel->invite_list,
-                                        channel->invite_list ?
-                                        strlen(channel->invite_list) : 0,
+                                        8, ban_list ? ban_list->data : NULL,
+                                        ban_list ? ban_list->len : 0,
+                                        9, invite_list ? invite_list->data :
+                                        NULL,
+                                        invite_list ? invite_list->len : 0,
                                         10, channel->topic,
                                         channel->topic ?
                                         strlen(channel->topic) : 0,
@@ -3439,12 +2196,15 @@ static void silc_server_command_join_channel(SilcServer server,
                                                                   hmac)),
                                         12, tmp3, 4,
                                         13, user_list->data, user_list->len,
-                                        14, mode_list->data, 
+                                        14, mode_list->data,
                                         mode_list->len,
-                                        15, fkey, fkey_len);
+                                        15, fkey ? fkey->data : NULL,
+                                        fkey ? fkey->len : 0,
+                                        16, chpklist ? chpklist->data : NULL,
+                                        chpklist ? chpklist->len : 0);
 
   /* Send command reply */
-  silc_server_packet_send(server, sock, SILC_PACKET_COMMAND_REPLY, 0, 
+  silc_server_packet_send(server, sock, SILC_PACKET_COMMAND_REPLY, 0,
                          reply->data, reply->len, FALSE);
 
   /* Send JOIN notify to locally connected clients on the channel. If
@@ -3454,7 +2214,7 @@ static void silc_server_command_join_channel(SilcServer server,
      we are router then this will send it to local clients and local
      servers. */
   SILC_LOG_DEBUG(("Send JOIN notify to channel"));
-  silc_server_send_notify_to_channel(server, NULL, channel, FALSE, 
+  silc_server_send_notify_to_channel(server, NULL, channel, FALSE, TRUE,
                                     SILC_NOTIFY_TYPE_JOIN, 2,
                                     clidp->data, clidp->len,
                                     chidp->data, chidp->len);
@@ -3481,11 +2241,12 @@ static void silc_server_command_join_channel(SilcServer server,
     if (founder) {
       SILC_PUT32_MSB(chl->mode, mode);
       SILC_LOG_DEBUG(("Send CUMODE_CHANGE notify to channel"));
-      silc_server_send_notify_to_channel(server, NULL, channel, FALSE, 
+      silc_server_send_notify_to_channel(server, NULL, channel, FALSE, TRUE,
                                         SILC_NOTIFY_TYPE_CUMODE_CHANGE, 4,
                                         clidp->data, clidp->len,
                                         mode, 4, clidp->data, clidp->len,
-                                        fkey, fkey_len);
+                                        fkey ? fkey->data : NULL,
+                                        fkey ? fkey->len : 0);
     }
   }
 
@@ -3502,28 +2263,33 @@ static void silc_server_command_join_channel(SilcServer server,
   silc_buffer_free(keyp);
   silc_buffer_free(user_list);
   silc_buffer_free(mode_list);
-  silc_free(fkey);
+  silc_buffer_free(fkey);
+  silc_buffer_free(chpklist);
+  silc_buffer_free(invite_list);
+  silc_buffer_free(ban_list);
 
  out:
+  if (passphrase)
+    memset(passphrase, 0, strlen(passphrase));
   silc_free(passphrase);
 }
 
-/* Server side of command JOIN. Joins client into requested channel. If 
+/* Server side of command JOIN. Joins client into requested channel. If
    the channel does not exist it will be created. */
 
 SILC_SERVER_CMD_FUNC(join)
 {
   SilcServerCommandContext cmd = (SilcServerCommandContext)context;
   SilcServer server = cmd->server;
-  unsigned char *auth;
-  SilcUInt32 tmp_len, auth_len;
+  unsigned char *auth, *cauth;
+  SilcUInt32 tmp_len, auth_len, cauth_len;
   char *tmp, *channel_name = NULL, *cipher, *hmac;
   SilcChannelEntry channel;
   SilcUInt32 umode = 0;
   bool created = FALSE, create_key = TRUE;
   SilcClientID *client_id;
 
-  SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_JOIN, cmd, 2, 6);
+  SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_JOIN, cmd, 2, 7);
 
   /* Get channel name */
   tmp = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
@@ -3538,7 +2304,7 @@ SILC_SERVER_CMD_FUNC(join)
   if (tmp_len > 256)
     channel_name[255] = '\0';
 
-  if (silc_server_name_bad_chars(channel_name, tmp_len) == TRUE) {
+  if (silc_server_name_bad_chchars(channel_name, tmp_len) == TRUE) {
     silc_server_command_send_status_reply(cmd, SILC_COMMAND_JOIN,
                                          SILC_STATUS_ERR_BAD_CHANNEL, 0);
     goto out;
@@ -3564,9 +2330,10 @@ SILC_SERVER_CMD_FUNC(join)
   cipher = silc_argument_get_arg_type(cmd->args, 4, NULL);
   hmac = silc_argument_get_arg_type(cmd->args, 5, NULL);
   auth = silc_argument_get_arg_type(cmd->args, 6, &auth_len);
+  cauth = silc_argument_get_arg_type(cmd->args, 7, &cauth_len);
 
   /* See if the channel exists */
-  channel = silc_idlist_find_channel_by_name(server->local_list, 
+  channel = silc_idlist_find_channel_by_name(server->local_list,
                                             channel_name, NULL);
 
   if (cmd->sock->type == SILC_SOCKET_TYPE_CLIENT) {
@@ -3581,34 +2348,34 @@ SILC_SERVER_CMD_FUNC(join)
     silc_free(client_id);
     client_id = silc_id_dup(entry->id, SILC_ID_CLIENT);
 
-    if (!channel || 
+    if (!channel ||
        (channel->disabled && server->server_type != SILC_ROUTER)) {
       /* Channel not found or not valid */
 
-      /* If we are standalone server we don't have a router, we just create 
+      /* If we are standalone server we don't have a router, we just create
         the channel by ourselves (unless it existed). */
       if (server->standalone) {
        if (!channel) {
-         channel = silc_server_create_new_channel(server, server->id, cipher, 
+         channel = silc_server_create_new_channel(server, server->id, cipher,
                                                   hmac, channel_name, TRUE);
          if (!channel) {
-           silc_server_command_send_status_reply(
+           silc_server_command_send_status_data(
                                  cmd, SILC_COMMAND_JOIN,
                                  SILC_STATUS_ERR_UNKNOWN_ALGORITHM,
-                                 0);
+                                 0, 2, cipher, strlen(cipher));
            silc_free(client_id);
            goto out;
          }
-       
+
          umode = (SILC_CHANNEL_UMODE_CHANOP | SILC_CHANNEL_UMODE_CHANFO);
          created = TRUE;
          create_key = FALSE;
        }
       } else {
 
-       /* The channel does not exist on our server. If we are normal server 
+       /* The channel does not exist on our server. If we are normal server
           we will send JOIN command to our router which will handle the
-          joining procedure (either creates the channel if it doesn't exist 
+          joining procedure (either creates the channel if it doesn't exist
           or joins the client to it). */
        if (server->server_type != SILC_ROUTER) {
          SilcBuffer tmpbuf;
@@ -3621,19 +2388,19 @@ SILC_SERVER_CMD_FUNC(join)
            silc_free(client_id);
            goto out;
          }
-         
+
          old_ident = silc_command_get_ident(cmd->payload);
          silc_command_set_ident(cmd->payload, ++server->cmd_ident);
          tmpbuf = silc_command_payload_encode_payload(cmd->payload);
-         
+
          /* Send JOIN command to our router */
          silc_server_packet_send(server, (SilcSocketConnection)
                                  SILC_PRIMARY_ROUTE(server),
                                  SILC_PACKET_COMMAND, cmd->packet->flags,
                                  tmpbuf->data, tmpbuf->len, TRUE);
-         
+
          /* Reprocess this packet after received reply from router */
-         silc_server_command_pending(server, SILC_COMMAND_JOIN, 
+         silc_server_command_pending(server, SILC_COMMAND_JOIN,
                                      silc_command_get_ident(cmd->payload),
                                      silc_server_command_join,
                                      silc_server_command_dup(cmd));
@@ -3643,19 +2410,20 @@ SILC_SERVER_CMD_FUNC(join)
          silc_free(client_id);
          goto out;
        }
-       
+
        /* We are router and the channel does not seem exist so we will check
           our global list as well for the channel. */
-       channel = silc_idlist_find_channel_by_name(server->global_list, 
+       channel = silc_idlist_find_channel_by_name(server->global_list,
                                                   channel_name, NULL);
        if (!channel) {
          /* Channel really does not exist, create it */
-         channel = silc_server_create_new_channel(server, server->id, cipher, 
+         channel = silc_server_create_new_channel(server, server->id, cipher,
                                                   hmac, channel_name, TRUE);
          if (!channel) {
-           silc_server_command_send_status_reply(
+           silc_server_command_send_status_data(
                                       cmd, SILC_COMMAND_JOIN,
-                                      SILC_STATUS_ERR_UNKNOWN_ALGORITHM, 0);
+                                      SILC_STATUS_ERR_UNKNOWN_ALGORITHM, 0,
+                                      2, cipher, strlen(cipher));
            silc_free(client_id);
            goto out;
          }
@@ -3678,19 +2446,20 @@ SILC_SERVER_CMD_FUNC(join)
        silc_free(client_id);
        goto out;
       }
-      
+
       /* We are router and the channel does not seem exist so we will check
         our global list as well for the channel. */
-      channel = silc_idlist_find_channel_by_name(server->global_list, 
+      channel = silc_idlist_find_channel_by_name(server->global_list,
                                                 channel_name, NULL);
       if (!channel) {
        /* Channel really does not exist, create it */
-       channel = silc_server_create_new_channel(server, server->id, cipher, 
+       channel = silc_server_create_new_channel(server, server->id, cipher,
                                                 hmac, channel_name, TRUE);
        if (!channel) {
-         silc_server_command_send_status_reply(
+         silc_server_command_send_status_data(
                                       cmd, SILC_COMMAND_JOIN,
-                                      SILC_STATUS_ERR_UNKNOWN_ALGORITHM, 0);
+                                      SILC_STATUS_ERR_UNKNOWN_ALGORITHM, 0,
+                                      2, cipher, strlen(cipher));
          silc_free(client_id);
          goto out;
        }
@@ -3739,7 +2508,7 @@ SILC_SERVER_CMD_FUNC(join)
   /* Join to the channel */
   silc_server_command_join_channel(server, cmd, channel, client_id,
                                   created, create_key, umode,
-                                  auth, auth_len);
+                                  auth, auth_len, cauth, cauth_len);
 
   silc_free(client_id);
 
@@ -3758,14 +2527,15 @@ SILC_SERVER_CMD_FUNC(motd)
   char *motd, *dest_server;
   SilcUInt32 motd_len;
   SilcUInt16 ident = silc_command_get_ident(cmd->payload);
-  
+
   SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_MOTD, cmd, 1, 1);
 
   /* Get server name */
   dest_server = silc_argument_get_arg_type(cmd->args, 1, NULL);
   if (!dest_server) {
     silc_server_command_send_status_reply(cmd, SILC_COMMAND_MOTD,
-                                         SILC_STATUS_ERR_NO_SUCH_SERVER, 0);
+                                         SILC_STATUS_ERR_NOT_ENOUGH_PARAMS,
+                                         0);
     goto out;
   }
 
@@ -3781,22 +2551,22 @@ SILC_SERVER_CMD_FUNC(motd)
                                &motd_len);
       if (!motd)
        goto out;
-      
+
       motd[motd_len] = 0;
       packet = silc_command_reply_payload_encode_va(SILC_COMMAND_MOTD,
-                                                   SILC_STATUS_OK, 0, 
+                                                   SILC_STATUS_OK, 0,
                                                    ident, 2,
                                                    2, idp, idp->len,
                                                    3, motd, motd_len);
     } else {
       /* No motd */
       packet = silc_command_reply_payload_encode_va(SILC_COMMAND_MOTD,
-                                                   SILC_STATUS_OK, 0, 
+                                                   SILC_STATUS_OK, 0,
                                                    ident, 1,
                                                    2, idp, idp->len);
     }
 
-    silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0, 
+    silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0,
                            packet->data, packet->len, FALSE);
     silc_buffer_free(packet);
     silc_buffer_free(idp);
@@ -3811,7 +2581,7 @@ SILC_SERVER_CMD_FUNC(motd)
                                              dest_server, TRUE, NULL);
     }
 
-    if (server->server_type != SILC_SERVER && !cmd->pending && 
+    if (server->server_type != SILC_SERVER && !cmd->pending &&
        entry && !entry->motd) {
       /* Send to the server */
       SilcBuffer tmpbuf;
@@ -3826,7 +2596,7 @@ SILC_SERVER_CMD_FUNC(motd)
                              tmpbuf->data, tmpbuf->len, TRUE);
 
       /* Reprocess this packet after received reply from router */
-      silc_server_command_pending(server, SILC_COMMAND_MOTD, 
+      silc_server_command_pending(server, SILC_COMMAND_MOTD,
                                  silc_command_get_ident(cmd->payload),
                                  silc_server_command_motd,
                                  silc_server_command_dup(cmd));
@@ -3850,7 +2620,7 @@ SILC_SERVER_CMD_FUNC(motd)
                              tmpbuf->data, tmpbuf->len, TRUE);
 
       /* Reprocess this packet after received reply from router */
-      silc_server_command_pending(server, SILC_COMMAND_MOTD, 
+      silc_server_command_pending(server, SILC_COMMAND_MOTD,
                                  silc_command_get_ident(cmd->payload),
                                  silc_server_command_motd,
                                  silc_server_command_dup(cmd));
@@ -3861,8 +2631,10 @@ SILC_SERVER_CMD_FUNC(motd)
     }
 
     if (!entry) {
-      silc_server_command_send_status_reply(cmd, SILC_COMMAND_INFO,
-                                           SILC_STATUS_ERR_NO_SUCH_SERVER, 0);
+      silc_server_command_send_status_data(cmd, SILC_COMMAND_MOTD,
+                                          SILC_STATUS_ERR_NO_SUCH_SERVER, 0,
+                                          2, dest_server,
+                                          strlen(dest_server));
       goto out;
     }
 
@@ -3871,9 +2643,9 @@ SILC_SERVER_CMD_FUNC(motd)
                                                  SILC_STATUS_OK, 0, ident, 2,
                                                  2, idp, idp->len,
                                                  3, entry->motd,
-                                                 entry->motd ? 
+                                                 entry->motd ?
                                                  strlen(entry->motd) : 0);
-    silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0, 
+    silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0,
                            packet->data, packet->len, FALSE);
     silc_buffer_free(packet);
     silc_buffer_free(idp);
@@ -3961,7 +2733,7 @@ SILC_SERVER_CMD_FUNC(umode)
   packet = silc_command_reply_payload_encode_va(SILC_COMMAND_UMODE,
                                                SILC_STATUS_OK, 0, ident, 1,
                                                2, m, sizeof(m));
-  silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0, 
+  silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0,
                          packet->data, packet->len, FALSE);
   silc_buffer_free(packet);
 
@@ -3981,21 +2753,21 @@ SILC_SERVER_CMD_FUNC(cmode)
   SilcChannelEntry channel;
   SilcChannelClientEntry chl;
   SilcBuffer packet, cidp;
-  unsigned char *tmp, *tmp_id, *tmp_mask;
+  unsigned char *tmp, *tmp_id, *tmp_mask, *chpkdata = NULL;
   char *cipher = NULL, *hmac = NULL, *passphrase = NULL;
-  SilcUInt32 mode_mask = 0, old_mask = 0, tmp_len, tmp_len2;
+  SilcUInt32 mode_mask = 0, old_mask = 0, tmp_len, tmp_len2, chpklen;
   SilcUInt16 ident = silc_command_get_ident(cmd->payload);
-  bool set_mask = FALSE;
+  bool set_mask = FALSE, set_chpk = FALSE;
   SilcPublicKey founder_key = NULL;
-  unsigned char *fkey = NULL;
-  SilcUInt32 fkey_len = 0;
+  SilcBuffer fkey = NULL, chpklist = NULL;
+  SilcBufferStruct chpk;
 
   if (!client) {
     silc_server_command_free(cmd);
     return;
   }
 
-  SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_CMODE, cmd, 1, 7);
+  SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_CMODE, cmd, 1, 9);
 
   /* Get Channel ID */
   tmp_id = silc_argument_get_arg_type(cmd->args, 1, &tmp_len2);
@@ -4014,15 +2786,15 @@ SILC_SERVER_CMD_FUNC(cmode)
   }
 
   /* Get channel entry */
-  channel = silc_idlist_find_channel_by_id(server->local_list, 
+  channel = silc_idlist_find_channel_by_id(server->local_list,
                                           channel_id, NULL);
   if (!channel) {
-    channel = silc_idlist_find_channel_by_id(server->global_list, 
+    channel = silc_idlist_find_channel_by_id(server->global_list,
                                             channel_id, NULL);
     if (!channel) {
-      silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
-                                           SILC_STATUS_ERR_NO_SUCH_CHANNEL,
-                                           0);
+      silc_server_command_send_status_data(cmd, SILC_COMMAND_CMODE,
+                                          SILC_STATUS_ERR_NO_SUCH_CHANNEL_ID,
+                                          0, 2, tmp_id, tmp_len2);
       silc_free(channel_id);
       silc_server_command_free(cmd);
       return;
@@ -4039,32 +2811,44 @@ SILC_SERVER_CMD_FUNC(cmode)
 
   /* Check whether this client is on the channel */
   if (!silc_server_client_on_channel(client, channel, &chl)) {
-    silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
-                                         SILC_STATUS_ERR_NOT_ON_CHANNEL, 0);
+    silc_server_command_send_status_data(cmd, SILC_COMMAND_CMODE,
+                                        SILC_STATUS_ERR_NOT_ON_CHANNEL, 0,
+                                        2, tmp_id, tmp_len2);
     goto out;
   }
 
   /* Check that client has rights to change any requested channel modes */
-  if (set_mask && !silc_server_check_cmode_rights(server, channel, chl, 
+  if (set_mask && !silc_server_check_cmode_rights(server, channel, chl,
                                                  mode_mask)) {
     SILC_LOG_DEBUG(("Client does not have rights to change mode"));
-    silc_server_command_send_status_reply(
+    silc_server_command_send_status_data(
                             cmd, SILC_COMMAND_CMODE,
-                            (!(chl->mode & SILC_CHANNEL_UMODE_CHANOP) ? 
+                            (!(chl->mode & SILC_CHANNEL_UMODE_CHANOP) ?
                              SILC_STATUS_ERR_NO_CHANNEL_PRIV :
-                             SILC_STATUS_ERR_NO_CHANNEL_FOPRIV), 0);
+                             SILC_STATUS_ERR_NO_CHANNEL_FOPRIV), 0,
+                            2, tmp_id, tmp_len2);
     goto out;
   }
 
   /* If mode mask was not sent as argument then merely return the current
-     mode mask to the sender. */
+     mode mask, founder key and channel public key list to the sender. */
   if (!set_mask) {
     unsigned char m[4];
     SILC_PUT32_MSB(channel->mode, m);
-    packet = silc_command_reply_payload_encode_va(SILC_COMMAND_CMODE,
-                                                 SILC_STATUS_OK, 0, ident, 2,
-                                                 2, tmp_id, tmp_len2,
-                                                 3, m, sizeof(m));
+    if (channel->founder_key)
+      fkey = silc_pkcs_public_key_payload_encode(channel->founder_key);
+    if (channel->channel_pubkeys)
+      chpklist = silc_server_get_channel_pk_list(server, channel,
+                                                FALSE, FALSE);
+    packet =
+      silc_command_reply_payload_encode_va(SILC_COMMAND_CMODE,
+                                          SILC_STATUS_OK, 0, ident, 4,
+                                          2, tmp_id, tmp_len2,
+                                          3, m, sizeof(m),
+                                          4, fkey ? fkey->data : NULL,
+                                          fkey ? fkey->len : 0,
+                                          5, chpklist ? chpklist->data : NULL,
+                                          chpklist ? chpklist->len : 0);
     silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0,
                            packet->data, packet->len, FALSE);
     silc_buffer_free(packet);
@@ -4085,18 +2869,18 @@ SILC_SERVER_CMD_FUNC(cmode)
       /* The mode is removed and we need to generate and distribute
         new channel key. Clients are not using private channel keys
         anymore after this. */
-      
+
       /* Re-generate channel key */
       if (!silc_server_create_channel_key(server, channel, 0))
        goto out;
-       
+
       /* Send the channel key. This sends it to our local clients and if
         we are normal server to our router as well. */
-      silc_server_send_channel_key(server, NULL, channel, 
-                                  server->server_type == SILC_ROUTER ? 
+      silc_server_send_channel_key(server, NULL, channel,
+                                  server->server_type == SILC_ROUTER ?
                                   FALSE : !server->standalone);
-       
-      cipher = channel->channel_key->cipher->name;
+
+      cipher = (char *)silc_cipher_get_name(channel->channel_key);
       hmac = (char *)silc_hmac_get_name(channel->hmac);
     }
   }
@@ -4104,7 +2888,7 @@ SILC_SERVER_CMD_FUNC(cmode)
   if (mode_mask & SILC_CHANNEL_MODE_ULIMIT) {
     /* User limit is set on channel */
     SilcUInt32 user_limit;
-      
+
     /* Get user limit */
     tmp = silc_argument_get_arg_type(cmd->args, 3, NULL);
     if (!tmp) {
@@ -4126,7 +2910,7 @@ SILC_SERVER_CMD_FUNC(cmode)
   if (mode_mask & SILC_CHANNEL_MODE_PASSPHRASE) {
     if (!(channel->mode & SILC_CHANNEL_MODE_PASSPHRASE)) {
       /* Passphrase has been set to channel */
-      
+
       /* Get the passphrase */
       tmp = silc_argument_get_arg_type(cmd->args, 4, NULL);
       if (!tmp) {
@@ -4161,8 +2945,10 @@ SILC_SERVER_CMD_FUNC(cmode)
 
       /* Delete old cipher and allocate the new one */
       if (!silc_cipher_alloc(cipher, &newkey)) {
-       silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
-                                      SILC_STATUS_ERR_UNKNOWN_ALGORITHM, 0);
+       silc_server_command_send_status_data(
+                                        cmd, SILC_COMMAND_CMODE,
+                                        SILC_STATUS_ERR_UNKNOWN_ALGORITHM, 0,
+                                        2, cipher, strlen(cipher));
        goto out;
       }
 
@@ -4181,21 +2967,23 @@ SILC_SERVER_CMD_FUNC(cmode)
 
       /* Send the channel key. This sends it to our local clients and if
         we are normal server to our router as well. */
-      silc_server_send_channel_key(server, NULL, channel, 
-                                  server->server_type == SILC_ROUTER ? 
+      silc_server_send_channel_key(server, NULL, channel,
+                                  server->server_type == SILC_ROUTER ?
                                   FALSE : !server->standalone);
     }
   } else {
     if (channel->mode & SILC_CHANNEL_MODE_CIPHER) {
-      /* Cipher mode is unset. Remove the cipher and revert back to 
+      /* Cipher mode is unset. Remove the cipher and revert back to
         default cipher */
       SilcCipher newkey, oldkey;
       cipher = channel->cipher;
 
       /* Delete old cipher and allocate default one */
       if (!silc_cipher_alloc(cipher ? cipher : SILC_DEFAULT_CIPHER, &newkey)) {
-       silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
-                                  SILC_STATUS_ERR_UNKNOWN_ALGORITHM, 0);
+       silc_server_command_send_status_data(
+                                     cmd, SILC_COMMAND_CMODE,
+                                     SILC_STATUS_ERR_UNKNOWN_ALGORITHM, 0,
+                                     2, cipher, strlen(cipher));
        goto out;
       }
 
@@ -4208,14 +2996,14 @@ SILC_SERVER_CMD_FUNC(cmode)
        channel->channel_key = oldkey;
        goto out;
       }
-      
+
       /* Remove old channel key for good */
       silc_cipher_free(oldkey);
 
       /* Send the channel key. This sends it to our local clients and if
         we are normal server to our router as well. */
-      silc_server_send_channel_key(server, NULL, channel, 
-                                  server->server_type == SILC_ROUTER ? 
+      silc_server_send_channel_key(server, NULL, channel,
+                                  server->server_type == SILC_ROUTER ?
                                   FALSE : !server->standalone);
     }
   }
@@ -4236,8 +3024,10 @@ SILC_SERVER_CMD_FUNC(cmode)
 
       /* Delete old hmac and allocate the new one */
       if (!silc_hmac_alloc(hmac, NULL, &newhmac)) {
-       silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
-                                      SILC_STATUS_ERR_UNKNOWN_ALGORITHM, 0);
+       silc_server_command_send_status_data(
+                                       cmd, SILC_COMMAND_CMODE,
+                                       SILC_STATUS_ERR_UNKNOWN_ALGORITHM, 0,
+                                       2, hmac, strlen(hmac));
        goto out;
       }
 
@@ -4246,25 +3036,26 @@ SILC_SERVER_CMD_FUNC(cmode)
 
       /* Set the HMAC key out of current channel key. The client must do
         this locally. */
-      silc_hash_make(silc_hmac_get_hash(channel->hmac), channel->key, 
+      silc_hash_make(silc_hmac_get_hash(channel->hmac), channel->key,
                     channel->key_len / 8, hash);
-      silc_hmac_set_key(channel->hmac, hash, 
+      silc_hmac_set_key(channel->hmac, hash,
                        silc_hash_len(silc_hmac_get_hash(channel->hmac)));
       memset(hash, 0, sizeof(hash));
     }
   } else {
     if (channel->mode & SILC_CHANNEL_MODE_HMAC) {
-      /* Hmac mode is unset. Remove the hmac and revert back to 
+      /* Hmac mode is unset. Remove the hmac and revert back to
         default hmac */
       SilcHmac newhmac;
       unsigned char hash[32];
       hmac = channel->hmac_name;
 
       /* Delete old hmac and allocate default one */
-      silc_hmac_free(channel->hmac);
       if (!silc_hmac_alloc(hmac ? hmac : SILC_DEFAULT_HMAC, NULL, &newhmac)) {
-       silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
-                                      SILC_STATUS_ERR_UNKNOWN_ALGORITHM, 0);
+       silc_server_command_send_status_data(
+                                       cmd, SILC_COMMAND_CMODE,
+                                       SILC_STATUS_ERR_UNKNOWN_ALGORITHM, 0,
+                                       2, hmac, strlen(hmac));
        goto out;
       }
 
@@ -4273,10 +3064,10 @@ SILC_SERVER_CMD_FUNC(cmode)
 
       /* Set the HMAC key out of current channel key. The client must do
         this locally. */
-      silc_hash_make(silc_hmac_get_hash(channel->hmac), channel->key, 
-                    channel->key_len / 8, 
+      silc_hash_make(silc_hmac_get_hash(channel->hmac), channel->key,
+                    channel->key_len / 8,
                     hash);
-      silc_hmac_set_key(channel->hmac, hash, 
+      silc_hmac_set_key(channel->hmac, hash,
                        silc_hash_len(silc_hmac_get_hash(channel->hmac)));
       memset(hash, 0, sizeof(hash));
     }
@@ -4284,46 +3075,66 @@ SILC_SERVER_CMD_FUNC(cmode)
 
   if (mode_mask & SILC_CHANNEL_MODE_FOUNDER_AUTH) {
     if (chl->mode & SILC_CHANNEL_UMODE_CHANFO) {
-      if (!(channel->mode & SILC_CHANNEL_MODE_FOUNDER_AUTH)) {
-       /* Set the founder authentication */
-       tmp = silc_argument_get_arg_type(cmd->args, 7, &tmp_len);
-       if (!tmp) {
-         silc_server_command_send_status_reply(
-                                    cmd, SILC_COMMAND_CMODE,
-                                    SILC_STATUS_ERR_NOT_ENOUGH_PARAMS, 0);
-         goto out;
-       }
-
-       /* Verify the payload before setting the mode */
-       if (!silc_auth_verify_data(tmp, tmp_len, SILC_AUTH_PUBLIC_KEY, 
-                                  idata->public_key, 0, server->sha1hash,
-                                  client->id, SILC_ID_CLIENT)) {
+      /* Check if the founder public key was received */
+      founder_key = idata->public_key;
+      tmp = silc_argument_get_arg_type(cmd->args, 8, &tmp_len);
+      if (tmp) {
+       if (!silc_pkcs_public_key_payload_decode(tmp, tmp_len, &founder_key)) {
          silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
                                                SILC_STATUS_ERR_AUTH_FAILED,
                                                0);
          goto out;
        }
+      } else {
+       /* If key was not sent and the channel mode has already founder
+          then the key was not to be changed. */
+       if (channel->mode & SILC_CHANNEL_MODE_FOUNDER_AUTH)
+         goto has_founder;
+      }
 
-       /* Save the public key */
-       channel->founder_key = silc_pkcs_public_key_copy(idata->public_key);
-        if (!channel->founder_key) {
-         silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
-                                               SILC_STATUS_ERR_AUTH_FAILED,
-                                               0);
-         goto out;
-        }
+      /* Set the founder authentication */
+      tmp = silc_argument_get_arg_type(cmd->args, 7, &tmp_len);
+      if (!tmp) {
+       silc_server_command_send_status_reply(
+                                    cmd, SILC_COMMAND_CMODE,
+                                    SILC_STATUS_ERR_NOT_ENOUGH_PARAMS, 0);
+       goto out;
+      }
 
-       founder_key = channel->founder_key;
-       fkey = silc_pkcs_public_key_encode(founder_key, &fkey_len);
-        if (!fkey) {
-         silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
-                                               SILC_STATUS_ERR_AUTH_FAILED,
-                                               0);
-         silc_pkcs_public_key_free(channel->founder_key);
-         channel->founder_key = NULL;
-         goto out;
-        }
+      /* Verify the payload before setting the mode */
+      if (!silc_auth_verify_data(tmp, tmp_len, SILC_AUTH_PUBLIC_KEY,
+                                founder_key, 0, server->sha1hash,
+                                client->id, SILC_ID_CLIENT)) {
+       silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
+                                             SILC_STATUS_ERR_AUTH_FAILED,
+                                             0);
+       goto out;
+      }
+
+      /* Save the public key */
+      if (channel->founder_key)
+       silc_pkcs_public_key_free(channel->founder_key);
+      if (silc_argument_get_arg_type(cmd->args, 8, NULL))
+       channel->founder_key = founder_key;
+      else
+       channel->founder_key = silc_pkcs_public_key_copy(founder_key);
+      if (!channel->founder_key) {
+       silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
+                                             SILC_STATUS_ERR_AUTH_FAILED,
+                                             0);
+       goto out;
+      }
+
+      fkey = silc_pkcs_public_key_payload_encode(channel->founder_key);
+      if (!fkey) {
+       silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
+                                             SILC_STATUS_ERR_AUTH_FAILED,
+                                             0);
+       silc_pkcs_public_key_free(channel->founder_key);
+       channel->founder_key = NULL;
+       goto out;
       }
+    has_founder:
     }
   } else {
     if (chl->mode & SILC_CHANNEL_UMODE_CHANFO) {
@@ -4335,33 +3146,78 @@ SILC_SERVER_CMD_FUNC(cmode)
     }
   }
 
+  if (mode_mask & SILC_CHANNEL_MODE_CHANNEL_AUTH) {
+    if (chl->mode & SILC_CHANNEL_UMODE_CHANFO) {
+      SilcStatus st;
+
+      chpkdata = silc_argument_get_arg_type(cmd->args, 9, &chpklen);
+
+      if (!chpkdata && channel->mode & SILC_CHANNEL_MODE_CHANNEL_AUTH)
+       goto has_pk_list;
+
+      set_chpk = TRUE;
+
+      /* Process the channel public key(s) */
+      st = silc_server_set_channel_pk_list(server, NULL, channel,
+                                          chpkdata, chpklen);
+      if (st != SILC_STATUS_OK) {
+       silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE, st, 0);
+       goto out;
+      }
+    has_pk_list:
+    }
+  } else {
+    if (chl->mode & SILC_CHANNEL_UMODE_CHANFO) {
+      if (channel->mode & SILC_CHANNEL_MODE_CHANNEL_AUTH) {
+       if (channel->channel_pubkeys)
+         silc_hash_table_free(channel->channel_pubkeys);
+       channel->channel_pubkeys = NULL;
+       set_chpk = TRUE;
+      }
+    }
+  }
+
   /* Finally, set the mode */
   old_mask = channel->mode = mode_mask;
 
   /* Send CMODE_CHANGE notify. */
   cidp = silc_id_payload_encode(client->id, SILC_ID_CLIENT);
-  silc_server_send_notify_to_channel(server, NULL, channel, FALSE,
-                                    SILC_NOTIFY_TYPE_CMODE_CHANGE, 6,
-                                    cidp->data, cidp->len, 
+  silc_server_send_notify_to_channel(server, NULL, channel, FALSE, TRUE,
+                                    SILC_NOTIFY_TYPE_CMODE_CHANGE, 7,
+                                    cidp->data, cidp->len,
                                     tmp_mask, 4,
                                     cipher, cipher ? strlen(cipher) : 0,
                                     hmac, hmac ? strlen(hmac) : 0,
-                                    passphrase, passphrase ? 
+                                    passphrase, passphrase ?
                                     strlen(passphrase) : 0,
-                                    fkey, fkey_len);
+                                    fkey ? fkey->data : NULL,
+                                    fkey ? fkey->len : 0,
+                                    chpkdata ? chpkdata : NULL,
+                                    chpkdata ? chpklen : 0);
 
   /* Set CMODE notify type to network */
+  if (chpkdata && chpklen)
+    silc_buffer_set(&chpk, chpkdata, chpklen);
   silc_server_send_notify_cmode(server, SILC_PRIMARY_ROUTE(server),
                                SILC_BROADCAST(server), channel,
                                mode_mask, client->id, SILC_ID_CLIENT,
-                               cipher, hmac, passphrase, founder_key);
+                               cipher, hmac, passphrase, founder_key,
+                               chpkdata ? &chpk : NULL);
+
+  if (set_chpk)
+    chpklist = silc_server_get_channel_pk_list(server, channel, FALSE, FALSE);
 
   /* Send command reply to sender */
   packet = silc_command_reply_payload_encode_va(SILC_COMMAND_CMODE,
-                                               SILC_STATUS_OK, 0, ident, 2,
+                                               SILC_STATUS_OK, 0, ident, 4,
                                                2, tmp_id, tmp_len2,
-                                               3, tmp_mask, 4);
-  silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0, 
+                                               3, tmp_mask, 4,
+                                               4, fkey ? fkey->data : NULL,
+                                               fkey ? fkey->len : 0,
+                                               5, chpklist ? chpklist->data :
+                                               NULL, chpklist ? chpklist->len
+                                               : 0);
+  silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0,
                          packet->data, packet->len, FALSE);
 
   silc_buffer_free(packet);
@@ -4369,7 +3225,8 @@ SILC_SERVER_CMD_FUNC(cmode)
 
  out:
   channel->mode = old_mask;
-  silc_free(fkey);
+  silc_buffer_free(chpklist);
+  silc_buffer_free(fkey);
   silc_free(channel_id);
   silc_server_command_free(cmd);
 }
@@ -4381,9 +3238,8 @@ SILC_SERVER_CMD_FUNC(cumode)
   SilcServerCommandContext cmd = (SilcServerCommandContext)context;
   SilcServer server = cmd->server;
   SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
-  SilcIDListData idata = (SilcIDListData)client;
-  SilcChannelID *channel_id;
-  SilcClientID *client_id;
+  SilcChannelID *channel_id = NULL;
+  SilcClientID *client_id = NULL;
   SilcChannelEntry channel;
   SilcClientEntry target_client;
   SilcChannelClientEntry chl;
@@ -4393,8 +3249,7 @@ SILC_SERVER_CMD_FUNC(cumode)
   int notify = FALSE;
   SilcUInt16 ident = silc_command_get_ident(cmd->payload);
   SilcPublicKey founder_key = NULL;
-  unsigned char *fkey = NULL;
-  SilcUInt32 fkey_len = 0;
+  SilcBuffer fkey = NULL;
 
   if (!client)
     goto out;
@@ -4416,27 +3271,28 @@ SILC_SERVER_CMD_FUNC(cumode)
   }
 
   /* Get channel entry */
-  channel = silc_idlist_find_channel_by_id(server->local_list, 
+  channel = silc_idlist_find_channel_by_id(server->local_list,
                                           channel_id, NULL);
   if (!channel) {
-    channel = silc_idlist_find_channel_by_id(server->global_list, 
+    channel = silc_idlist_find_channel_by_id(server->global_list,
                                             channel_id, NULL);
     if (!channel) {
-      silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
-                                           SILC_STATUS_ERR_NO_SUCH_CHANNEL,
-                                           0);
+      silc_server_command_send_status_data(cmd, SILC_COMMAND_CUMODE,
+                                          SILC_STATUS_ERR_NO_SUCH_CHANNEL_ID,
+                                          0, 2, tmp_ch_id, tmp_ch_len);
       goto out;
     }
   }
 
   /* Check whether sender is on the channel */
   if (!silc_server_client_on_channel(client, channel, &chl)) {
-    silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
-                                         SILC_STATUS_ERR_NOT_ON_CHANNEL, 0);
+    silc_server_command_send_status_data(cmd, SILC_COMMAND_CUMODE,
+                                        SILC_STATUS_ERR_NOT_ON_CHANNEL, 0,
+                                        2, tmp_ch_id, tmp_ch_len);
     goto out;
   }
   sender_mask = chl->mode;
-  
+
   /* Get the target client's channel mode mask */
   tmp_mask = silc_argument_get_arg_type(cmd->args, 2, NULL);
   if (!tmp_mask) {
@@ -4462,40 +3318,44 @@ SILC_SERVER_CMD_FUNC(cumode)
   }
 
   /* Get target client's entry */
-  target_client = silc_idlist_find_client_by_id(server->local_list, 
+  target_client = silc_idlist_find_client_by_id(server->local_list,
                                                client_id, TRUE, NULL);
   if (!target_client) {
-    target_client = silc_idlist_find_client_by_id(server->global_list, 
+    target_client = silc_idlist_find_client_by_id(server->global_list,
                                                  client_id, TRUE, NULL);
   }
 
   if (target_client != client &&
       !(sender_mask & SILC_CHANNEL_UMODE_CHANFO) &&
       !(sender_mask & SILC_CHANNEL_UMODE_CHANOP)) {
-    silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
-                                         SILC_STATUS_ERR_NO_CHANNEL_PRIV, 0);
+    silc_server_command_send_status_data(cmd, SILC_COMMAND_CUMODE,
+                                        SILC_STATUS_ERR_NO_CHANNEL_PRIV, 0,
+                                        2, tmp_ch_id, tmp_ch_len);
     goto out;
   }
 
   /* Check whether target client is on the channel */
   if (target_client != client) {
     if (!silc_server_client_on_channel(target_client, channel, &chl)) {
-      silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
-                                SILC_STATUS_ERR_USER_NOT_ON_CHANNEL, 0);
+      silc_server_command_send_status_data2(
+                                 cmd, SILC_COMMAND_CUMODE,
+                                 SILC_STATUS_ERR_USER_NOT_ON_CHANNEL, 0,
+                                 2, tmp_id, tmp_len,
+                                 3, tmp_ch_id, tmp_ch_len);
       goto out;
     }
   }
 
-  /* 
-   * Change the mode 
+  /*
+   * Change the mode
    */
 
   /* If the target client is founder, no one else can change their mode
      but themselves. */
   if (chl->mode & SILC_CHANNEL_UMODE_CHANFO && client != target_client) {
-    silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
-                                         SILC_STATUS_ERR_NO_CHANNEL_FOPRIV,
-                                         0);
+    silc_server_command_send_status_data(cmd, SILC_COMMAND_CUMODE,
+                                        SILC_STATUS_ERR_NO_CHANNEL_FOPRIV,
+                                        0, 2, tmp_ch_id, tmp_ch_len);
     goto out;
   }
 
@@ -4514,9 +3374,7 @@ SILC_SERVER_CMD_FUNC(cumode)
       SilcHashTableList htl;
 
       if (!(channel->mode & SILC_CHANNEL_MODE_FOUNDER_AUTH) ||
-         !channel->founder_key || !idata->public_key ||
-         !silc_pkcs_public_key_compare(channel->founder_key, 
-                                       idata->public_key)) {
+         !channel->founder_key) {
        silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
                                              SILC_STATUS_ERR_AUTH_FAILED, 0);
        goto out;
@@ -4540,7 +3398,7 @@ SILC_SERVER_CMD_FUNC(cumode)
 
       notify = TRUE;
       founder_key = channel->founder_key;
-      fkey = silc_pkcs_public_key_encode(founder_key, &fkey_len);
+      fkey = silc_pkcs_public_key_payload_encode(founder_key);
       if (!fkey) {
        silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
                                              SILC_STATUS_ERR_AUTH_FAILED, 0);
@@ -4578,11 +3436,11 @@ SILC_SERVER_CMD_FUNC(cumode)
   if (target_mask & SILC_CHANNEL_UMODE_CHANOP) {
     /* Promote to operator */
     if (!(chl->mode & SILC_CHANNEL_UMODE_CHANOP)) {
-      if (!(sender_mask & SILC_CHANNEL_UMODE_CHANOP) && 
+      if (!(sender_mask & SILC_CHANNEL_UMODE_CHANOP) &&
           !(sender_mask & SILC_CHANNEL_UMODE_CHANFO)) {
-        silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
-                                              SILC_STATUS_ERR_NO_CHANNEL_PRIV,
-                                              0);
+        silc_server_command_send_status_data(cmd, SILC_COMMAND_CUMODE,
+                                            SILC_STATUS_ERR_NO_CHANNEL_PRIV,
+                                            0, 2, tmp_ch_id, tmp_ch_len);
         goto out;
       }
 
@@ -4593,12 +3451,12 @@ SILC_SERVER_CMD_FUNC(cumode)
     if (chl->mode & SILC_CHANNEL_UMODE_CHANOP) {
       if (!(sender_mask & SILC_CHANNEL_UMODE_CHANOP) &&
           !(sender_mask & SILC_CHANNEL_UMODE_CHANFO)) {
-        silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,   
-                                              SILC_STATUS_ERR_NO_CHANNEL_PRIV,
-                                              0);
+        silc_server_command_send_status_data(cmd, SILC_COMMAND_CUMODE,
+                                            SILC_STATUS_ERR_NO_CHANNEL_PRIV,
+                                            0, 2, tmp_ch_id, tmp_ch_len);
         goto out;
       }
-      
+
       /* Demote to normal user */
       chl->mode &= ~SILC_CHANNEL_UMODE_CHANOP;
       notify = TRUE;
@@ -4704,12 +3562,13 @@ SILC_SERVER_CMD_FUNC(cumode)
 
   /* Send notify to channel, notify only if mode was actually changed. */
   if (notify) {
-    silc_server_send_notify_to_channel(server, NULL, channel, FALSE, 
+    silc_server_send_notify_to_channel(server, NULL, channel, FALSE, TRUE,
                                       SILC_NOTIFY_TYPE_CUMODE_CHANGE, 4,
                                       idp->data, idp->len,
-                                      tmp_mask, 4, 
+                                      tmp_mask, 4,
                                       tmp_id, tmp_len,
-                                      fkey, fkey_len);
+                                      fkey ? fkey->data : NULL,
+                                      fkey ? fkey->len : 0);
 
     /* Set CUMODE notify type to network */
     silc_server_send_notify_cumode(server, SILC_PRIMARY_ROUTE(server),
@@ -4724,16 +3583,16 @@ SILC_SERVER_CMD_FUNC(cumode)
                                                2, tmp_mask, 4,
                                                3, tmp_ch_id, tmp_ch_len,
                                                4, tmp_id, tmp_len);
-  silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0, 
+  silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0,
                          packet->data, packet->len, FALSE);
-    
+
   silc_buffer_free(packet);
-  silc_free(channel_id);
-  silc_free(client_id);
   silc_buffer_free(idp);
 
  out:
-  silc_free(fkey);
+  silc_free(channel_id);
+  silc_free(client_id);
+  silc_buffer_free(fkey);
   silc_server_command_free(cmd);
 }
 
@@ -4749,8 +3608,9 @@ SILC_SERVER_CMD_FUNC(kick)
   SilcClientID *client_id;
   SilcChannelEntry channel;
   SilcChannelClientEntry chl;
-  SilcBuffer idp;
-  SilcUInt32 tmp_len, target_idp_len;
+  SilcBuffer idp, packet;
+  SilcUInt32 tmp_len, target_idp_len, clen;
+  SilcUInt16 ident = silc_command_get_ident(cmd->payload);
   unsigned char *tmp, *comment, *target_idp;
 
   if (!client)
@@ -4767,40 +3627,43 @@ SILC_SERVER_CMD_FUNC(kick)
   }
   channel_id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
   if (!channel_id) {
-    silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
-                                         SILC_STATUS_ERR_NO_CHANNEL_ID, 0);
+    silc_server_command_send_status_data(cmd, SILC_COMMAND_KICK,
+                                        SILC_STATUS_ERR_BAD_CHANNEL_ID, 0,
+                                         2, tmp, tmp_len);
     goto out;
   }
 
   /* Get channel entry */
-  channel = silc_idlist_find_channel_by_id(server->local_list, 
+  channel = silc_idlist_find_channel_by_id(server->local_list,
                                           channel_id, NULL);
   if (!channel) {
-    channel = silc_idlist_find_channel_by_id(server->local_list, 
+    channel = silc_idlist_find_channel_by_id(server->local_list,
                                             channel_id, NULL);
     if (!channel) {
-      silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
-                                           SILC_STATUS_ERR_NO_SUCH_CHANNEL,
-                                           0);
+      silc_server_command_send_status_data(cmd, SILC_COMMAND_KICK,
+                                          SILC_STATUS_ERR_NO_SUCH_CHANNEL_ID,
+                                          0, 2, tmp, tmp_len);
       goto out;
     }
   }
 
   /* Check whether sender is on the channel */
   if (!silc_server_client_on_channel(client, channel, &chl)) {
-    silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
-                                         SILC_STATUS_ERR_NOT_ON_CHANNEL, 0);
+    silc_server_command_send_status_data(cmd, SILC_COMMAND_KICK,
+                                        SILC_STATUS_ERR_NOT_ON_CHANNEL,
+                                        0, 2, tmp, tmp_len);
     goto out;
   }
 
   /* Check that the kicker is channel operator or channel founder */
   if (!(chl->mode & SILC_CHANNEL_UMODE_CHANOP) &&
       !(chl->mode & SILC_CHANNEL_UMODE_CHANFO)) {
-    silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
-                                         SILC_STATUS_ERR_NO_CHANNEL_PRIV, 0);
+    silc_server_command_send_status_data(cmd, SILC_COMMAND_KICK,
+                                        SILC_STATUS_ERR_NO_CHANNEL_PRIV,
+                                        0, 2, tmp, tmp_len);
     goto out;
   }
-  
+
   /* Get target Client ID */
   target_idp = silc_argument_get_arg_type(cmd->args, 2, &target_idp_len);
   if (!target_idp) {
@@ -4810,49 +3673,61 @@ SILC_SERVER_CMD_FUNC(kick)
   }
   client_id = silc_id_payload_parse_id(target_idp, target_idp_len, NULL);
   if (!client_id) {
-    silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
-                                         SILC_STATUS_ERR_NO_CLIENT_ID, 0);
+    silc_server_command_send_status_data(cmd, SILC_COMMAND_KICK,
+                                        SILC_STATUS_ERR_BAD_CLIENT_ID,
+                                        0, 2, target_idp, target_idp_len);
     goto out;
   }
 
   /* Get target client's entry */
-  target_client = silc_idlist_find_client_by_id(server->local_list, 
+  target_client = silc_idlist_find_client_by_id(server->local_list,
                                                client_id, TRUE, NULL);
   if (!target_client) {
-    target_client = silc_idlist_find_client_by_id(server->global_list, 
+    target_client = silc_idlist_find_client_by_id(server->global_list,
                                                  client_id, TRUE, NULL);
   }
 
   /* Check whether target client is on the channel */
   if (!silc_server_client_on_channel(target_client, channel, &chl)) {
-    silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
+    silc_server_command_send_status_data2(cmd, SILC_COMMAND_KICK,
                                          SILC_STATUS_ERR_USER_NOT_ON_CHANNEL,
-                                         0);
+                                         0, 2, target_idp, target_idp_len,
+                                         3, tmp, tmp_len);
     goto out;
   }
 
   /* Check that the target client is not channel founder. Channel founder
      cannot be kicked from the channel. */
   if (chl->mode & SILC_CHANNEL_UMODE_CHANFO) {
-    silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
-                                         SILC_STATUS_ERR_NO_CHANNEL_FOPRIV,
-                                         0);
+    silc_server_command_send_status_data(cmd, SILC_COMMAND_KICK,
+                                        SILC_STATUS_ERR_NO_CHANNEL_FOPRIV,
+                                        0, 2, tmp, tmp_len);
     goto out;
   }
-  
+
   /* Get comment */
-  tmp_len = 0;
-  comment = silc_argument_get_arg_type(cmd->args, 3, &tmp_len);
-  if (tmp_len > 128)
+  comment = silc_argument_get_arg_type(cmd->args, 3, &clen);
+  if (clen > 128)
     comment = NULL;
 
+
+  /* Send the reply back to the client */
+  packet =
+    silc_command_reply_payload_encode_va(SILC_COMMAND_KICK,
+                                        SILC_STATUS_OK, 0, ident, 2,
+                                        2, tmp, tmp_len,
+                                        3, target_idp, target_idp_len);
+  silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0,
+                         packet->data, packet->len, FALSE);
+  silc_buffer_free(packet);
+
   /* Send command reply to sender */
-  silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK, 
+  silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
                                        SILC_STATUS_OK, 0);
 
   /* Send KICKED notify to local clients on the channel */
   idp = silc_id_payload_encode(client->id, SILC_ID_CLIENT);
-  silc_server_send_notify_to_channel(server, NULL, channel, FALSE,
+  silc_server_send_notify_to_channel(server, NULL, channel, FALSE, TRUE,
                                     SILC_NOTIFY_TYPE_KICKED, 3,
                                     target_idp, target_idp_len,
                                     comment, comment ? strlen(comment) : 0,
@@ -4864,10 +3739,21 @@ SILC_SERVER_CMD_FUNC(kick)
                                 SILC_BROADCAST(server), channel,
                                 target_client->id, client->id, comment);
 
+  /* Remove the client from channel's invite list */
+  if (channel->invite_list && silc_hash_table_count(channel->invite_list)) {
+    SilcBuffer ab =
+      silc_argument_payload_encode_one(NULL, target_idp, target_idp_len, 3);
+    SilcArgumentPayload args =
+      silc_argument_payload_parse(ab->data, ab->len, 1);
+    silc_server_inviteban_process(server, channel->invite_list, 1, args);
+    silc_buffer_free(ab);
+    silc_argument_payload_free(args);
+  }
+
   /* Remove the client from the channel. If the channel does not exist
      after removing the client then the client kicked itself off the channel
      and we don't have to send anything after that. */
-  if (!silc_server_remove_from_one_channel(server, NULL, channel, 
+  if (!silc_server_remove_from_one_channel(server, NULL, channel,
                                           target_client, FALSE))
     goto out;
 
@@ -4875,11 +3761,11 @@ SILC_SERVER_CMD_FUNC(kick)
     /* Re-generate channel key */
     if (!silc_server_create_channel_key(server, channel, 0))
       goto out;
-    
+
     /* Send the channel key to the channel. The key of course is not sent
        to the client who was kicked off the channel. */
-    silc_server_send_channel_key(server, target_client->connection, channel, 
-                                server->server_type == SILC_ROUTER ? 
+    silc_server_send_channel_key(server, target_client->connection, channel,
+                                server->server_type == SILC_ROUTER ?
                                 FALSE : !server->standalone);
   }
 
@@ -4926,6 +3812,9 @@ SILC_SERVER_CMD_FUNC(oper)
       silc_server_command_send_status_reply(cmd, SILC_COMMAND_OPER,
                                            SILC_STATUS_ERR_AUTH_FAILED,
                                            0);
+      SILC_LOG_INFO(("OPER authentication failed for username '%s' by "
+                    "nickname '%s' from %s", username,
+                    client->nickname, cmd->sock->hostname));
       goto out;
     }
   }
@@ -4950,7 +3839,7 @@ SILC_SERVER_CMD_FUNC(oper)
     if (!cached_key)
       goto out;
     result = silc_auth_verify_data(auth, tmp_len, SILC_AUTH_PUBLIC_KEY,
-                                  cached_key, 0, idata->hash, 
+                                  cached_key, 0, idata->hash,
                                   client->id, SILC_ID_CLIENT);
   }
   if (!result) {
@@ -4990,25 +3879,26 @@ SILC_SERVER_CMD_FUNC(oper)
 
 SILC_TASK_CALLBACK(silc_server_command_detach_cb)
 {
+  SilcServer server = app_context;
   QuitInternal q = (QuitInternal)context;
   SilcClientID *client_id = (SilcClientID *)q->sock;
   SilcClientEntry client;
   SilcSocketConnection sock;
 
-  client = silc_idlist_find_client_by_id(q->server->local_list, client_id,
+  client = silc_idlist_find_client_by_id(server->local_list, client_id,
                                         TRUE, NULL);
   if (client && client->connection) {
     sock = client->connection;
 
     /* If there is pending outgoing data for the client then purge it
        to the network before closing connection. */
-    silc_server_packet_queue_purge(q->server, sock);
+    silc_server_packet_queue_purge(server, sock);
 
     /* Close the connection on our side */
     client->router = NULL;
     client->connection = NULL;
     sock->user_data = NULL;
-    silc_server_close_connection(q->server, sock);
+    silc_server_close_connection(server, sock);
   }
 
   silc_free(client_id);
@@ -5017,15 +3907,16 @@ SILC_TASK_CALLBACK(silc_server_command_detach_cb)
 
 SILC_TASK_CALLBACK(silc_server_command_detach_timeout)
 {
+  SilcServer server = app_context;
   QuitInternal q = (QuitInternal)context;
   SilcClientID *client_id = (SilcClientID *)q->sock;
   SilcClientEntry client;
 
-  client = silc_idlist_find_client_by_id(q->server->local_list, client_id,
+  client = silc_idlist_find_client_by_id(server->local_list, client_id,
                                         TRUE, NULL);
   if (client && client->mode & SILC_UMODE_DETACHED) {
     SILC_LOG_DEBUG(("Detach timeout"));
-    silc_server_free_client_data(q->server, NULL, client, TRUE,
+    silc_server_free_client_data(server, NULL, client, TRUE,
                                 "Detach timeout");
   }
 
@@ -5045,7 +3936,8 @@ SILC_SERVER_CMD_FUNC(detach)
 
   if (server->config->detach_disabled) {
     silc_server_command_send_status_reply(cmd, SILC_COMMAND_DETACH,
-                                         SILC_STATUS_ERR_UNKNOWN_COMMAND, 0);
+                                         SILC_STATUS_ERR_OPERATION_ALLOWED,
+                                         0);
     goto out;
   }
 
@@ -5062,6 +3954,7 @@ SILC_SERVER_CMD_FUNC(detach)
   /* Send the user mode notify to notify that client is detached */
   client->mode |= SILC_UMODE_DETACHED;
   client->data.status &= ~SILC_IDLIST_STATUS_RESUMED;
+  client->data.status &= ~SILC_IDLIST_STATUS_NOATTR;
   client->last_command = 0;
   client->fast_command = 0;
   silc_server_send_notify_umode(server, SILC_PRIMARY_ROUTE(server),
@@ -5075,16 +3968,14 @@ SILC_SERVER_CMD_FUNC(detach)
                                   SILC_NOTIFY_TYPE_UMODE_CHANGE);
 
   q = silc_calloc(1, sizeof(*q));
-  q->server = server;
   q->sock = silc_id_dup(client->id, SILC_ID_CLIENT);
   silc_schedule_task_add(server->schedule, 0, silc_server_command_detach_cb,
                         q, 0, 200000, SILC_TASK_TIMEOUT, SILC_TASK_PRI_LOW);
 
   if (server->config->detach_timeout) {
     q = silc_calloc(1, sizeof(*q));
-    q->server = server;
     q->sock = silc_id_dup(client->id, SILC_ID_CLIENT);
-    silc_schedule_task_add(server->schedule, 0, 
+    silc_schedule_task_add(server->schedule, 0,
                           silc_server_command_detach_timeout,
                           q, server->config->detach_timeout * 60,
                           0, SILC_TASK_TIMEOUT, SILC_TASK_PRI_LOW);
@@ -5113,12 +4004,14 @@ SILC_SERVER_CMD_FUNC(watch)
 
   SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_WATCH, cmd, 1, 3);
 
-  if (server->server_type == SILC_SERVER && !server->standalone) {
+  if (server->server_type != SILC_ROUTER && !server->standalone) {
     if (!cmd->pending) {
       /* Send the command to router */
       SilcBuffer tmpbuf;
       SilcUInt16 old_ident;
 
+      SILC_LOG_DEBUG(("Forwarding WATCH to router"));
+
       old_ident = silc_command_get_ident(cmd->payload);
       silc_command_set_ident(cmd->payload, ++server->cmd_ident);
       tmpbuf = silc_command_payload_encode_payload(cmd->payload);
@@ -5139,6 +4032,8 @@ SILC_SERVER_CMD_FUNC(watch)
       /* Received reply from router, just send same data to the client. */
       SilcServerCommandReplyContext reply = context2;
       SilcStatus status;
+
+      SILC_LOG_DEBUG(("Received reply to WATCH from router"));
       silc_command_get_status(reply->payload, &status, NULL);
       silc_server_command_send_status_reply(cmd, SILC_COMMAND_WATCH, status,
                                            0);
@@ -5159,19 +4054,19 @@ SILC_SERVER_CMD_FUNC(watch)
   }
   client_id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
   if (!client_id) {
-    silc_server_command_send_status_reply(cmd, SILC_COMMAND_WATCH,
-                                         SILC_STATUS_ERR_NO_SUCH_CLIENT_ID,
-                                         0);
+    silc_server_command_send_status_data(cmd, SILC_COMMAND_WATCH,
+                                        SILC_STATUS_ERR_NO_SUCH_CLIENT_ID,
+                                        0, 2, tmp, tmp_len);
     goto out;
   }
 
   /* Get the client entry which must be in local list */
-  client = silc_idlist_find_client_by_id(server->local_list, 
+  client = silc_idlist_find_client_by_id(server->local_list,
                                         client_id, TRUE, NULL);
   if (!client) {
-    silc_server_command_send_status_reply(cmd, SILC_COMMAND_WATCH,
-                                         SILC_STATUS_ERR_NO_SUCH_CLIENT_ID,
-                                         0);
+    silc_server_command_send_status_data(cmd, SILC_COMMAND_WATCH,
+                                        SILC_STATUS_ERR_NO_SUCH_CLIENT_ID, 0,
+                                        2, tmp, tmp_len);
     goto out;
   }
 
@@ -5206,7 +4101,7 @@ SILC_SERVER_CMD_FUNC(watch)
     silc_hash_make(server->md5hash, nick, strlen(nick), hash);
 
     /* Check whether this client is already watching this nickname */
-    if (silc_hash_table_find_by_context(server->watcher_list, hash, 
+    if (silc_hash_table_find_by_context(server->watcher_list, hash,
                                        client, NULL)) {
       /* Nickname is alredy being watched for this client */
       silc_server_command_send_status_reply(cmd, SILC_COMMAND_WATCH,
@@ -5238,11 +4133,12 @@ SILC_SERVER_CMD_FUNC(watch)
     silc_hash_make(server->md5hash, nick, strlen(nick), hash);
 
     /* Check that this client is watching for this nickname */
-    if (!silc_hash_table_find_by_context(server->watcher_list, hash, 
+    if (!silc_hash_table_find_by_context(server->watcher_list, hash,
                                         client, (void **)&tmp)) {
       /* Nickname is alredy being watched for this client */
-      silc_server_command_send_status_reply(cmd, SILC_COMMAND_WATCH,
-                                           SILC_STATUS_ERR_NO_SUCH_NICK, 0);
+      silc_server_command_send_status_data(cmd, SILC_COMMAND_WATCH,
+                                          SILC_STATUS_ERR_NO_SUCH_NICK, 0,
+                                          2, nick, strlen(nick));
       goto out;
     }
 
@@ -5318,6 +4214,9 @@ SILC_SERVER_CMD_FUNC(silcoper)
     if (!admin) {
       silc_server_command_send_status_reply(cmd, SILC_COMMAND_SILCOPER,
                                            SILC_STATUS_ERR_AUTH_FAILED, 0);
+      SILC_LOG_INFO(("SILCOPER authentication failed for username '%s' by "
+                    "nickname '%s' from %s", username,
+                    client->nickname, cmd->sock->hostname));
       goto out;
     }
   }
@@ -5342,7 +4241,7 @@ SILC_SERVER_CMD_FUNC(silcoper)
     if (!cached_key)
       goto out;
     result = silc_auth_verify_data(auth, tmp_len, SILC_AUTH_PUBLIC_KEY,
-                                  cached_key, 0, idata->hash, 
+                                  cached_key, 0, idata->hash,
                                   client->id, SILC_ID_CLIENT);
   }
   if (!result) {
@@ -5387,13 +4286,17 @@ SILC_SERVER_CMD_FUNC(ban)
   SilcServerCommandContext cmd = (SilcServerCommandContext)context;
   SilcServer server = cmd->server;
   SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
-  SilcBuffer packet;
+  SilcBuffer packet, list, tmp2;
   SilcChannelEntry channel;
   SilcChannelClientEntry chl;
   SilcChannelID *channel_id = NULL;
-  unsigned char *id, *add, *del;
-  SilcUInt32 id_len, tmp_len;
-  SilcUInt16 ident = silc_command_get_ident(cmd->payload);
+  unsigned char *id, *tmp, *atype = NULL;
+  SilcUInt32 id_len, len, len2;
+  SilcArgumentPayload args;
+  SilcHashTableList htl;
+  SilcUInt32 type;
+  SilcUInt16 argc = 0, ident = silc_command_get_ident(cmd->payload);
+  SilcBufferStruct blist;
 
   if (cmd->sock->type != SILC_SOCKET_TYPE_CLIENT || !client)
     goto out;
@@ -5413,89 +4316,123 @@ SILC_SERVER_CMD_FUNC(ban)
 
   /* Get channel entry. The server must know about the channel since the
      client is expected to be on the channel. */
-  channel = silc_idlist_find_channel_by_id(server->local_list, 
+  channel = silc_idlist_find_channel_by_id(server->local_list,
                                           channel_id, NULL);
   if (!channel) {
-    channel = silc_idlist_find_channel_by_id(server->global_list, 
+    channel = silc_idlist_find_channel_by_id(server->global_list,
                                             channel_id, NULL);
     if (!channel) {
-      silc_server_command_send_status_reply(cmd, SILC_COMMAND_BAN,
-                                           SILC_STATUS_ERR_NO_SUCH_CHANNEL,
-                                           0);
+      silc_server_command_send_status_data(cmd, SILC_COMMAND_BAN,
+                                          SILC_STATUS_ERR_NO_SUCH_CHANNEL_ID,
+                                          0, 2, id, id_len);
       goto out;
     }
   }
 
   /* Check whether this client is on the channel */
   if (!silc_server_client_on_channel(client, channel, &chl)) {
-    silc_server_command_send_status_reply(cmd, SILC_COMMAND_BAN,
-                                         SILC_STATUS_ERR_NOT_ON_CHANNEL, 0);
+    silc_server_command_send_status_data(cmd, SILC_COMMAND_BAN,
+                                        SILC_STATUS_ERR_NOT_ON_CHANNEL, 0,
+                                        2, id, id_len);
     goto out;
   }
 
   /* The client must be at least channel operator. */
   if (!(chl->mode & SILC_CHANNEL_UMODE_CHANOP)) {
-    silc_server_command_send_status_reply(cmd, SILC_COMMAND_BAN,
-                                         SILC_STATUS_ERR_NO_CHANNEL_PRIV, 0);
+    silc_server_command_send_status_data(cmd, SILC_COMMAND_BAN,
+                                        SILC_STATUS_ERR_NO_CHANNEL_PRIV, 0,
+                                        2, id, id_len);
     goto out;
   }
 
-  /* Get the new ban and add it to the ban list */
-  add = silc_argument_get_arg_type(cmd->args, 2, &tmp_len);
-  if (add) {
-    if (!channel->ban_list)
-      channel->ban_list = silc_calloc(tmp_len + 2, sizeof(*channel->ban_list));
-    else
-      channel->ban_list = silc_realloc(channel->ban_list, 
-                                      sizeof(*channel->ban_list) * 
-                                      (tmp_len + 
-                                       strlen(channel->ban_list) + 2));
-    if (add[tmp_len - 1] == ',')
-      add[tmp_len - 1] = '\0';
-
-    strncat(channel->ban_list, add, tmp_len);
-    strncat(channel->ban_list, ",", 1);
-  }
-
-  /* Get the ban to be removed and remove it from the list */
-  del = silc_argument_get_arg_type(cmd->args, 3, &tmp_len);
-  if (del && channel->ban_list) {
-    char *start, *end, *n;
+  /* Get the ban information */
+  tmp = silc_argument_get_arg_type(cmd->args, 3, &len2);
+  if (tmp && len2 > 2) {
+    /* Parse the arguments to see they are constructed correctly */
+    SILC_GET16_MSB(argc, tmp);
+    args = silc_argument_payload_parse(tmp + 2, len2 - 2, argc);
+    if (!args) {
+      silc_server_command_send_status_reply(cmd, SILC_COMMAND_BAN,
+                                           SILC_STATUS_ERR_NOT_ENOUGH_PARAMS,
+                                           0);
+      goto out;
+    }
 
-    if (!strncmp(channel->ban_list, del, strlen(channel->ban_list) - 1)) {
-      silc_free(channel->ban_list);
-      channel->ban_list = NULL;
-    } else {
-      start = strstr(channel->ban_list, del);
-      if (start && strlen(start) >= tmp_len) {
-       end = start + tmp_len;
-       n = silc_calloc(strlen(channel->ban_list) - tmp_len, sizeof(*n));
-       strncat(n, channel->ban_list, start - channel->ban_list);
-       strncat(n, end + 1, ((channel->ban_list + strlen(channel->ban_list)) - 
-                            end) - 1);
-       silc_free(channel->ban_list);
-       channel->ban_list = n;
+    /* Get the type of action */
+    atype = silc_argument_get_arg_type(cmd->args, 2, &len);
+    if (atype && len == 1) {
+      if (atype[0] == 0x00) {
+       /* Allocate hash table for ban list if it doesn't exist yet */
+       if (!channel->ban_list)
+         channel->ban_list =
+           silc_hash_table_alloc(0, silc_hash_ptr,
+                                 NULL, NULL, NULL,
+                                 silc_server_inviteban_destruct, channel,
+                                 TRUE);
+
+       /* Check for resource limit */
+       if (silc_hash_table_count(channel->ban_list) > 64) {
+         silc_server_command_send_status_reply(cmd, SILC_COMMAND_BAN,
+                                               SILC_STATUS_ERR_RESOURCE_LIMIT,
+                                               0);
+         goto out;
+       }
       }
+
+      /* Now add or delete the information. */
+      silc_server_inviteban_process(server, channel->ban_list,
+                                   (SilcUInt8)atype[0], args);
     }
+    silc_argument_payload_free(args);
+  }
+
+  /* Encode ban list */
+  list = NULL;
+  if (channel->ban_list && silc_hash_table_count(channel->ban_list)) {
+    list = silc_buffer_alloc_size(2);
+    silc_buffer_format(list,
+                      SILC_STR_UI_SHORT(silc_hash_table_count(
+                                         channel->ban_list)),
+                      SILC_STR_END);
+    silc_hash_table_list(channel->ban_list, &htl);
+    while (silc_hash_table_get(&htl, (void **)&type, (void **)&tmp2))
+      list = silc_argument_payload_encode_one(list, tmp2->data, tmp2->len,
+                                             type);
+    silc_hash_table_list_reset(&htl);
   }
 
-  /* Send the BAN notify type to our primary router. */
-  if (add || del)
+  /* Send BAN notify type to local servers (but not clients) and to
+     network. */
+  if (atype && tmp && len2) {
+    silc_buffer_set(&blist, tmp, len2);
+
+    /* Send to local servers if we are router */
+    if (server->server_type == SILC_ROUTER)
+      silc_server_send_notify_to_channel(server, NULL, channel, FALSE, FALSE,
+                                         SILC_NOTIFY_TYPE_BAN, 3,
+                                        id, id_len,
+                                        atype, 1,
+                                        tmp ? blist.data : NULL,
+                                        tmp ? blist.len : 0);
+
+    /* Send to network. */
     silc_server_send_notify_ban(server, SILC_PRIMARY_ROUTE(server),
-                               SILC_BROADCAST(server), channel, add, del);
+                               SILC_BROADCAST(server), channel, atype,
+                               &blist);
+  }
 
   /* Send the reply back to the client */
-  packet = 
+  packet =
     silc_command_reply_payload_encode_va(SILC_COMMAND_BAN,
                                         SILC_STATUS_OK, 0, ident, 2,
                                         2, id, id_len,
-                                        3, channel->ban_list, 
-                                        channel->ban_list ? 
-                                        strlen(channel->ban_list) -1 : 0);
-  silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0, 
+                                        3, list ? list->data : NULL,
+                                        list ? list->len : 0);
+  silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0,
                          packet->data, packet->len, FALSE);
-    
+
   silc_buffer_free(packet);
+  silc_buffer_free(list);
 
  out:
   silc_free(channel_id);
@@ -5539,17 +4476,18 @@ SILC_SERVER_CMD_FUNC(leave)
   if (!channel) {
     channel = silc_idlist_find_channel_by_id(server->global_list, id, NULL);
     if (!channel) {
-      silc_server_command_send_status_reply(cmd, SILC_COMMAND_LEAVE,
-                                           SILC_STATUS_ERR_NO_SUCH_CHANNEL,
-                                           0);
+      silc_server_command_send_status_data(cmd, SILC_COMMAND_LEAVE,
+                                          SILC_STATUS_ERR_NO_SUCH_CHANNEL_ID,
+                                          0, 2, tmp, len);
       goto out;
     }
   }
 
   /* Check whether this client is on the channel */
   if (!silc_server_client_on_channel(id_entry, channel, NULL)) {
-    silc_server_command_send_status_reply(cmd, SILC_COMMAND_LEAVE,
-                                         SILC_STATUS_ERR_NOT_ON_CHANNEL, 0);
+    silc_server_command_send_status_data(cmd, SILC_COMMAND_LEAVE,
+                                        SILC_STATUS_ERR_NOT_ON_CHANNEL, 0,
+                                        2, tmp, len);
     goto out;
   }
 
@@ -5573,8 +4511,8 @@ SILC_SERVER_CMD_FUNC(leave)
       goto out;
 
     /* Send the channel key */
-    silc_server_send_channel_key(server, NULL, channel, 
-                                server->server_type == SILC_ROUTER ? 
+    silc_server_send_channel_key(server, NULL, channel,
+                                server->server_type == SILC_ROUTER ?
                                 FALSE : !server->standalone);
   }
 
@@ -5620,8 +4558,9 @@ SILC_SERVER_CMD_FUNC(users)
   if (channel_id) {
     id = silc_id_payload_parse_id(channel_id, channel_id_len, NULL);
     if (!id) {
-      silc_server_command_send_status_reply(cmd, SILC_COMMAND_USERS,
-                                           SILC_STATUS_ERR_NO_CHANNEL_ID, 0);
+      silc_server_command_send_status_data(cmd, SILC_COMMAND_USERS,
+                                          SILC_STATUS_ERR_BAD_CHANNEL_ID, 0,
+                                          2, channel_id, channel_id_len);
       goto out;
     }
   }
@@ -5632,25 +4571,25 @@ SILC_SERVER_CMD_FUNC(users)
   if (id)
     channel = silc_idlist_find_channel_by_id(server->local_list, id, NULL);
   else
-    channel = silc_idlist_find_channel_by_name(server->local_list, 
+    channel = silc_idlist_find_channel_by_name(server->local_list,
                                               channel_name, NULL);
 
-  if (!channel || (!server->standalone && (channel->disabled || 
+  if (!channel || (!server->standalone && (channel->disabled ||
                    !channel->users_resolved))) {
     if (server->server_type != SILC_ROUTER && !server->standalone &&
        !cmd->pending) {
       SilcBuffer tmpbuf;
-      
+
       silc_command_set_ident(cmd->payload, ++server->cmd_ident);
       tmpbuf = silc_command_payload_encode_payload(cmd->payload);
-      
+
       /* Send USERS command */
       silc_server_packet_send(server, SILC_PRIMARY_ROUTE(server),
                              SILC_PACKET_COMMAND, cmd->packet->flags,
                              tmpbuf->data, tmpbuf->len, TRUE);
-      
+
       /* Reprocess this packet after received reply */
-      silc_server_command_pending(server, SILC_COMMAND_USERS, 
+      silc_server_command_pending(server, SILC_COMMAND_USERS,
                                  silc_command_get_ident(cmd->payload),
                                  silc_server_command_users,
                                  silc_server_command_dup(cmd));
@@ -5665,13 +4604,20 @@ SILC_SERVER_CMD_FUNC(users)
     if (id)
       channel = silc_idlist_find_channel_by_id(server->global_list, id, NULL);
     else
-      channel = silc_idlist_find_channel_by_name(server->global_list, 
+      channel = silc_idlist_find_channel_by_name(server->global_list,
                                                 channel_name, NULL);
     if (!channel) {
       /* Channel really does not exist */
-      silc_server_command_send_status_reply(cmd, SILC_COMMAND_USERS,
-                                           SILC_STATUS_ERR_NO_SUCH_CHANNEL,
-                                           0);
+      if (id)
+       silc_server_command_send_status_data(
+                                   cmd, SILC_COMMAND_USERS,
+                                   SILC_STATUS_ERR_NO_SUCH_CHANNEL_ID, 0,
+                                   2, channel_id, channel_id_len);
+      else
+       silc_server_command_send_status_data(
+                                   cmd, SILC_COMMAND_USERS,
+                                   SILC_STATUS_ERR_NO_SUCH_CHANNEL, 0,
+                                   2, channel_name, strlen(channel_name));
       goto out;
     }
   }
@@ -5680,11 +4626,12 @@ SILC_SERVER_CMD_FUNC(users)
      user requesting this command is on the channel or is server */
   if (cmd->sock->type == SILC_SOCKET_TYPE_CLIENT) {
     if (channel->mode & (SILC_CHANNEL_MODE_PRIVATE | SILC_CHANNEL_MODE_SECRET)
-       && !silc_server_client_on_channel(cmd->sock->user_data, channel, 
+       && !silc_server_client_on_channel(cmd->sock->user_data, channel,
                                          NULL)) {
-      silc_server_command_send_status_reply(cmd, SILC_COMMAND_USERS,
-                                           SILC_STATUS_ERR_NO_SUCH_CHANNEL,
-                                           0);
+      silc_server_command_send_status_data(cmd, SILC_COMMAND_USERS,
+                                          SILC_STATUS_ERR_NO_SUCH_CHANNEL, 0,
+                                          2, channel->channel_name,
+                                          strlen(channel->channel_name));
       goto out;
     }
   }
@@ -5706,7 +4653,7 @@ SILC_SERVER_CMD_FUNC(users)
                                                SILC_STATUS_OK, 0, ident, 4,
                                                2, idp->data, idp->len,
                                                3, lc, 4,
-                                               4, client_id_list ? 
+                                               4, client_id_list ?
                                                client_id_list->data : NULL,
                                                client_id_list ?
                                                client_id_list->len : 0,
@@ -5714,9 +4661,9 @@ SILC_SERVER_CMD_FUNC(users)
                                                client_mode_list->data : NULL,
                                                client_mode_list ?
                                                client_mode_list->len : 0);
-  silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0, 
+  silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0,
                          packet->data, packet->len, FALSE);
-    
+
   silc_buffer_free(idp);
   silc_buffer_free(packet);
   if (client_id_list)
@@ -5743,8 +4690,8 @@ SILC_SERVER_CMD_FUNC(getkey)
   SilcServerID *server_id = NULL;
   SilcIDPayload idp = NULL;
   SilcUInt16 ident = silc_command_get_ident(cmd->payload);
-  unsigned char *tmp, *pkdata;
-  SilcUInt32 tmp_len, pklen;
+  unsigned char *tmp;
+  SilcUInt32 tmp_len;
   SilcBuffer pk = NULL;
   SilcIdType id_type;
   SilcPublicKey public_key;
@@ -5770,12 +4717,12 @@ SILC_SERVER_CMD_FUNC(getkey)
 
     /* If the client is not found from local list there is no chance it
        would be locally connected client so send the command further. */
-    client = silc_idlist_find_client_by_id(server->local_list, 
+    client = silc_idlist_find_client_by_id(server->local_list,
                                           client_id, TRUE, NULL);
     if (!client)
-      client = silc_idlist_find_client_by_id(server->global_list, 
+      client = silc_idlist_find_client_by_id(server->global_list,
                                             client_id, TRUE, NULL);
-    
+
     if ((!client && !cmd->pending && !server->standalone) ||
        (client && !client->connection && !cmd->pending &&
         !(client->mode & SILC_UMODE_DETACHED)) ||
@@ -5783,22 +4730,22 @@ SILC_SERVER_CMD_FUNC(getkey)
       SilcBuffer tmpbuf;
       SilcUInt16 old_ident;
       SilcSocketConnection dest_sock;
-      
-      dest_sock = silc_server_get_client_route(server, NULL, 0, 
+
+      dest_sock = silc_server_get_client_route(server, NULL, 0,
                                               client_id, NULL, NULL);
       if (!dest_sock)
        goto out;
-      
+
       old_ident = silc_command_get_ident(cmd->payload);
       silc_command_set_ident(cmd->payload, ++server->cmd_ident);
       tmpbuf = silc_command_payload_encode_payload(cmd->payload);
-      
+
       silc_server_packet_send(server, dest_sock,
                              SILC_PACKET_COMMAND, cmd->packet->flags,
                              tmpbuf->data, tmpbuf->len, TRUE);
-      
+
       /* Reprocess this packet after received reply from router */
-      silc_server_command_pending(server, SILC_COMMAND_GETKEY, 
+      silc_server_command_pending(server, SILC_COMMAND_GETKEY,
                                  silc_command_get_ident(cmd->payload),
                                  silc_server_command_getkey,
                                  silc_server_command_dup(cmd));
@@ -5809,43 +4756,29 @@ SILC_SERVER_CMD_FUNC(getkey)
     }
 
     if (!client) {
-      silc_server_command_send_status_reply(cmd, SILC_COMMAND_GETKEY,
-                                           SILC_STATUS_ERR_NO_SUCH_CLIENT_ID,
-                                           0);
+      silc_server_command_send_status_data(cmd, SILC_COMMAND_GETKEY,
+                                          SILC_STATUS_ERR_NO_SUCH_CLIENT_ID,
+                                          0, 2, tmp, tmp_len);
       goto out;
     }
 
     /* The client is locally connected, just get the public key and
-       send it back. If they key does not exist then do not send it, 
+       send it back. If they key does not exist then do not send it,
        send just OK reply */
     public_key = client->data.public_key;
-    if (!public_key) {
-      pkdata = NULL;
-      pklen = 0;
-    } else {
-      tmp = silc_pkcs_public_key_encode(public_key, &tmp_len);
-      pk = silc_buffer_alloc(4 + tmp_len);
-      silc_buffer_pull_tail(pk, SILC_BUFFER_END(pk));
-      silc_buffer_format(pk,
-                        SILC_STR_UI_SHORT(tmp_len),
-                        SILC_STR_UI_SHORT(SILC_SKE_PK_TYPE_SILC),
-                        SILC_STR_UI_XNSTRING(tmp, tmp_len),
-                        SILC_STR_END);
-      silc_free(tmp);
-      pkdata = pk->data;
-      pklen = pk->len;
-    }
+    if (public_key)
+      pk = silc_pkcs_public_key_payload_encode(public_key);
   } else if (id_type == SILC_ID_SERVER) {
     server_id = silc_id_payload_get_id(idp);
 
     /* If the server is not found from local list there is no chance it
        would be locally connected server so send the command further. */
-    server_entry = silc_idlist_find_server_by_id(server->local_list, 
+    server_entry = silc_idlist_find_server_by_id(server->local_list,
                                                 server_id, TRUE, NULL);
     if (!server_entry)
-      server_entry = silc_idlist_find_server_by_id(server->global_list, 
+      server_entry = silc_idlist_find_server_by_id(server->global_list,
                                                   server_id, TRUE, NULL);
-    
+
     if (server_entry != server->id_entry &&
        ((!server_entry && !cmd->pending && !server->standalone) ||
         (server_entry && !server_entry->connection && !cmd->pending &&
@@ -5854,17 +4787,17 @@ SILC_SERVER_CMD_FUNC(getkey)
          !server->standalone))) {
       SilcBuffer tmpbuf;
       SilcUInt16 old_ident;
-      
+
       old_ident = silc_command_get_ident(cmd->payload);
       silc_command_set_ident(cmd->payload, ++server->cmd_ident);
       tmpbuf = silc_command_payload_encode_payload(cmd->payload);
-      
+
       silc_server_packet_send(server, SILC_PRIMARY_ROUTE(server),
                              SILC_PACKET_COMMAND, cmd->packet->flags,
                              tmpbuf->data, tmpbuf->len, TRUE);
-      
+
       /* Reprocess this packet after received reply from router */
-      silc_server_command_pending(server, SILC_COMMAND_GETKEY, 
+      silc_server_command_pending(server, SILC_COMMAND_GETKEY,
                                  silc_command_get_ident(cmd->payload),
                                  silc_server_command_getkey,
                                  silc_server_command_dup(cmd));
@@ -5875,52 +4808,36 @@ SILC_SERVER_CMD_FUNC(getkey)
     }
 
     if (!server_entry) {
-      silc_server_command_send_status_reply(cmd, SILC_COMMAND_GETKEY,
-                                           SILC_STATUS_ERR_NO_SUCH_SERVER_ID,
-                                           0);
+      silc_server_command_send_status_data(cmd, SILC_COMMAND_GETKEY,
+                                          SILC_STATUS_ERR_NO_SUCH_SERVER_ID,
+                                          0, 2, tmp, tmp_len);
       goto out;
     }
 
     /* If they key does not exist then do not send it, send just OK reply */
-    public_key = (!server_entry->data.public_key ? 
+    public_key = (!server_entry->data.public_key ?
                  (server_entry == server->id_entry ? server->public_key :
                   NULL) : server_entry->data.public_key);
-    if (!public_key) {
-      pkdata = NULL;
-      pklen = 0;
-    } else {
-      tmp = silc_pkcs_public_key_encode(public_key, &tmp_len);
-      pk = silc_buffer_alloc(4 + tmp_len);
-      silc_buffer_pull_tail(pk, SILC_BUFFER_END(pk));
-      silc_buffer_format(pk,
-                        SILC_STR_UI_SHORT(tmp_len),
-                        SILC_STR_UI_SHORT(SILC_SKE_PK_TYPE_SILC),
-                        SILC_STR_UI_XNSTRING(tmp, tmp_len),
-                        SILC_STR_END);
-      silc_free(tmp);
-      pkdata = pk->data;
-      pklen = pk->len;
-    }
+    if (public_key)
+      pk = silc_pkcs_public_key_payload_encode(public_key);
   } else {
     goto out;
   }
 
   tmp = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
   packet = silc_command_reply_payload_encode_va(SILC_COMMAND_GETKEY,
-                                               SILC_STATUS_OK, 0, ident, 
-                                               pkdata ? 2 : 1,
+                                               SILC_STATUS_OK, 0, ident, 2,
                                                2, tmp, tmp_len,
-                                               3, pkdata, pklen);
-  silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0, 
+                                               3, pk ? pk->data : NULL,
+                                               pk ? pk->len : 0);
+  silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0,
                          packet->data, packet->len, FALSE);
   silc_buffer_free(packet);
 
-  if (pk)
-    silc_buffer_free(pk);
-
  out:
   if (idp)
     silc_id_payload_free(idp);
+  silc_buffer_free(pk);
   silc_free(client_id);
   silc_free(server_id);
   silc_server_command_free(cmd);
@@ -5954,7 +4871,7 @@ SILC_SERVER_CMD_FUNC(connect)
     goto out;
   }
 
-  if (server->server_type == SILC_ROUTER && 
+  if (server->server_type == SILC_ROUTER && !server->backup_router &&
       client->mode & SILC_UMODE_SERVER_OPERATOR) {
     silc_server_command_send_status_reply(cmd, SILC_COMMAND_PRIV_CONNECT,
                                          SILC_STATUS_ERR_NO_ROUTER_PRIV, 0);
@@ -5987,7 +4904,7 @@ SILC_SERVER_CMD_FUNC(connect)
 }
 
 /* Server side command of CLOSE. Closes connection to a specified server. */
+
 SILC_SERVER_CMD_FUNC(close)
 {
   SilcServerCommandContext cmd = (SilcServerCommandContext)context;
@@ -6052,24 +4969,26 @@ SILC_SERVER_CMD_FUNC(close)
   /* Close the connection to the server */
   sock = (SilcSocketConnection)server_entry->connection;
 
-  /* If we shutdown primary router connection manually then don't trigger
-     any reconnect or backup router connections, by setting the router
-     to NULL here. */
+  server->backup_noswitch = TRUE;
   if (server->router == server_entry) {
     server->id_entry->router = NULL;
     server->router = NULL;
     server->standalone = TRUE;
   }
-  silc_server_free_sock_user_data(server, sock, NULL);
-  silc_server_close_connection(server, sock);
-  
+  silc_server_disconnect_remote(server, sock,
+                               SILC_STATUS_ERR_BANNED_FROM_SERVER,
+                               "Closed by administrator");
+  if (sock->user_data)
+    silc_server_free_sock_user_data(server, sock, NULL);
+  server->backup_noswitch = FALSE;
+
  out:
   silc_server_command_free(cmd);
 }
 
 /* Server side command of SHUTDOWN. Shutdowns the server and closes all
    active connections. */
+
 SILC_SERVER_CMD_FUNC(shutdown)
 {
   SilcServerCommandContext cmd = (SilcServerCommandContext)context;