Merged from silc_1_0_branch.
[silc.git] / lib / silcclient / command_reply.c
index b3c3f79180adeed63af1ea1ea10454978b2cbd49..0ae2890bf8c233eee94188c01c2014e99e75a909 100644 (file)
@@ -1,22 +1,22 @@
 /*
 
-  command_reply.c
+  command_reply.c 
 
-  Author: Pekka Riikonen <priikone@poseidon.pspt.fi>
+  Author: Pekka Riikonen <priikone@silcnet.org>
 
-  Copyright (C) 1997 - 2001 Pekka Riikonen
+  Copyright (C) 1997 - 2002 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
   GNU General Public License for more details.
 
 */
+/* $Id$ */
 /*
  * Command reply functions are "the otherside" of the command functions.
  * Reply to a command sent by server is handled by these functions.
  * necessary data already in hand without redundant searching.  If ID is
  * received but ID entry does not exist, NULL is sent.
  */
-/* $Id$ */
 
-#include "clientlibincludes.h"
+#include "silcincludes.h"
+#include "silcclient.h"
 #include "client_internal.h"
 
-/* Client command reply list. */
-SilcClientCommandReply silc_command_reply_list[] =
-{
-  SILC_CLIENT_CMD_REPLY(whois, WHOIS),
-  SILC_CLIENT_CMD_REPLY(whowas, WHOWAS),
-  SILC_CLIENT_CMD_REPLY(identify, IDENTIFY),
-  SILC_CLIENT_CMD_REPLY(nick, NICK),
-  SILC_CLIENT_CMD_REPLY(list, LIST),
-  SILC_CLIENT_CMD_REPLY(topic, TOPIC),
-  SILC_CLIENT_CMD_REPLY(invite, INVITE),
-  SILC_CLIENT_CMD_REPLY(kill, KILL),
-  SILC_CLIENT_CMD_REPLY(info, INFO),
-  SILC_CLIENT_CMD_REPLY(connect, CONNECT),
-  SILC_CLIENT_CMD_REPLY(ping, PING),
-  SILC_CLIENT_CMD_REPLY(oper, OPER),
-  SILC_CLIENT_CMD_REPLY(join, JOIN),
-  SILC_CLIENT_CMD_REPLY(motd, MOTD),
-  SILC_CLIENT_CMD_REPLY(umode, UMODE),
-  SILC_CLIENT_CMD_REPLY(cmode, CMODE),
-  SILC_CLIENT_CMD_REPLY(cumode, CUMODE),
-  SILC_CLIENT_CMD_REPLY(kick, KICK),
-  SILC_CLIENT_CMD_REPLY(ban, BAN),
-  SILC_CLIENT_CMD_REPLY(close, CLOSE),
-  SILC_CLIENT_CMD_REPLY(shutdown, SHUTDOWN),
-  SILC_CLIENT_CMD_REPLY(silcoper, SILCOPER),
-  SILC_CLIENT_CMD_REPLY(leave, LEAVE),
-  SILC_CLIENT_CMD_REPLY(users, USERS),
-  SILC_CLIENT_CMD_REPLY(getkey, GETKEY),
-
-  { NULL, 0 },
-};
-
-const SilcCommandStatusMessage silc_command_status_messages[] = {
-
-  { STAT(NO_SUCH_NICK),      "There was no such nickname" },
-  { STAT(NO_SUCH_CHANNEL),   "There was no such channel" },
-  { STAT(NO_SUCH_SERVER),    "No such server" },
-  { STAT(TOO_MANY_TARGETS),  "Duplicate recipients. No message delivered" },
-  { STAT(NO_RECIPIENT),      "No recipient given" },
-  { STAT(UNKNOWN_COMMAND),   "Unknown command" },
-  { STAT(WILDCARDS),         "Unknown command" },
-  { STAT(NO_CLIENT_ID),      "No Client ID given" },
-  { STAT(NO_CHANNEL_ID),     "No Channel ID given" },
-  { STAT(NO_SERVER_ID),      "No Server ID given" },
-  { STAT(BAD_CLIENT_ID),     "Bad Client ID" },
-  { STAT(BAD_CHANNEL_ID),    "Bad Channel ID" },
-  { STAT(NO_SUCH_CLIENT_ID), "There is no such client" },
-  { STAT(NO_SUCH_CHANNEL_ID),"There is no such channel" },
-  { STAT(NICKNAME_IN_USE),   "Nickname already exists" },
-  { STAT(NOT_ON_CHANNEL),    "You are not on that channel" },
-  { STAT(USER_NOT_ON_CHANNEL),"They are not on the channel" },
-  { STAT(USER_ON_CHANNEL),   "User already on the channel" },
-  { STAT(NOT_REGISTERED),    "You have not registered" },
-  { STAT(NOT_ENOUGH_PARAMS), "Not enough parameters" },
-  { STAT(TOO_MANY_PARAMS),   "Too many parameters" },
-  { STAT(PERM_DENIED),       "Permission denied" },
-  { STAT(BANNED_FROM_SERVER),"You are banned from this server" },
-  { STAT(BAD_PASSWORD),      "Cannot join channel. Incorrect password" },
-  { STAT(CHANNEL_IS_FULL),   "Cannot join channel. Channel is full" },
-  { STAT(NOT_INVITED),     "Cannot join channel. You have not been invited" },
-  { STAT(BANNED_FROM_CHANNEL), "Cannot join channel. You have been banned" },
-  { STAT(UNKNOWN_MODE),    "Unknown mode" },
-  { STAT(NOT_YOU),         "Cannot change mode for other users" },
-  { STAT(NO_CHANNEL_PRIV), "Permission denied. You are not channel operator" },
-  { STAT(NO_CHANNEL_FOPRIV),"Permission denied. You are not channel founder" },
-  { STAT(NO_SERVER_PRIV),  "Permission denied. You are not server operator" },
-  { STAT(NO_ROUTER_PRIV),  "Permission denied. You are not SILC operator" },
-  { STAT(BAD_NICKNAME),    "Bad nickname" },
-  { STAT(BAD_CHANNEL),     "Bad channel name" },
-  { STAT(AUTH_FAILED),     "Authentication failed" },
-  { STAT(UNKNOWN_ALGORITHM), "Unsupported algorithm" },
-  { STAT(NO_SUCH_SERVER_ID), "No such Server ID" },
-
-  { 0, NULL }
-};
-/* Command reply operation that is called at the end of all command replys. 
-   Usage: COMMAND_REPLY((ARGS, argument1, argument2, etc...)), */
-#define COMMAND_REPLY(args) cmd->client->ops->command_reply args
-#define ARGS cmd->client, cmd->sock->user_data, \
-             cmd->payload, TRUE, silc_command_get(cmd->payload), status
-
-/* Error reply to application. Usage: COMMAND_REPLY_ERROR; */
-#define COMMAND_REPLY_ERROR cmd->client->ops->command_reply(cmd->client, \
-  cmd->sock->user_data, cmd->payload, FALSE, \
-  silc_command_get(cmd->payload), status)
-
-/* All functions that call the COMMAND_CHECK_STATUS or the
-   COMMAND_CHECK_STATUS_LIST macros must have out: goto label. */
-
-#define COMMAND_CHECK_STATUS                                             \
-do {                                                                     \
-  SILC_LOG_DEBUG(("Start"));                                             \
-  SILC_GET16_MSB(status, silc_argument_get_arg_type(cmd->args, 1, NULL)); \
-  if (status != SILC_STATUS_OK)  {                                       \
-    COMMAND_REPLY_ERROR;                                                 \
-    goto out;                                                            \
-  }                                                                      \
+#define SAY cmd->client->internal->ops->say
+
+/* All functions that call the COMMAND_CHECK_STATUS macro must have 
+   out: and err: goto labels. out label should call the pending
+   command replies, and the err label just handle error condition. */
+
+#define COMMAND_CHECK_STATUS                                   \
+do {                                                           \
+  SILC_LOG_DEBUG(("Start"));                                   \
+  if (!silc_command_get_status(cmd->payload, NULL, NULL)) {    \
+    if (SILC_STATUS_IS_ERROR(cmd->status)) {                   \
+      /* Single error */                                       \
+      COMMAND_REPLY_ERROR;                                     \
+      goto out;                                                        \
+    }                                                          \
+    /* List of errors */                                       \
+    COMMAND_REPLY_ERROR;                                       \
+    if (cmd->status == SILC_STATUS_LIST_END)                   \
+      goto out;                                                        \
+    goto err;                                                  \
+  }                                                            \
 } while(0)
 
-#define COMMAND_CHECK_STATUS_LIST                                        \
-do {                                                                     \
-  SILC_LOG_DEBUG(("Start"));                                             \
-  SILC_GET16_MSB(status, silc_argument_get_arg_type(cmd->args, 1, NULL)); \
-  if (status != SILC_STATUS_OK &&                                        \
-      status != SILC_STATUS_LIST_START &&                                \
-      status != SILC_STATUS_LIST_ITEM &&                                 \
-      status != SILC_STATUS_LIST_END) {                                          \
-    COMMAND_REPLY_ERROR;                                                 \
-    goto out;                                                            \
-  }                                                                      \
+/* Same as COMMAND_CHECK_STATUS but doesn't call client operation */
+#define COMMAND_CHECK_STATUS_I                                 \
+do {                                                           \
+  SILC_LOG_DEBUG(("Start"));                                   \
+  if (!silc_command_get_status(cmd->payload, NULL, NULL)) {    \
+    if (SILC_STATUS_IS_ERROR(cmd->status))                     \
+      goto out;                                                        \
+    if (cmd->status == SILC_STATUS_LIST_END)                   \
+      goto out;                                                        \
+    goto err;                                                  \
+  }                                                            \
 } while(0)
 
 /* Process received command reply. */
@@ -155,14 +79,14 @@ void silc_client_command_reply_process(SilcClient client,
                                       SilcPacketContext *packet)
 {
   SilcBuffer buffer = packet->buffer;
-  SilcClientCommandReply *cmd;
+  SilcClientCommand cmd;
   SilcClientCommandReplyContext ctx;
   SilcCommandPayload payload;
   SilcCommand command;
-  uint16 ident;
-
+  SilcCommandCb reply = NULL;
+  
   /* Get command reply payload from packet */
-  payload = silc_command_payload_parse(buffer);
+  payload = silc_command_payload_parse(buffer->data, buffer->len);
   if (!payload) {
     /* Silently ignore bad reply packet */
     SILC_LOG_DEBUG(("Bad command reply packet"));
@@ -172,53 +96,65 @@ void silc_client_command_reply_process(SilcClient client,
   /* Allocate command reply context. This must be free'd by the
      command reply routine receiving it. */
   ctx = silc_calloc(1, sizeof(*ctx));
+  ctx->users++;
   ctx->client = client;
   ctx->sock = sock;
   ctx->payload = payload;
   ctx->args = silc_command_get_args(ctx->payload);
   ctx->packet = packet;
-  ident = silc_command_get_ident(ctx->payload);
-      
+  ctx->ident = silc_command_get_ident(ctx->payload);
+  silc_command_get_status(ctx->payload, &ctx->status, &ctx->error);
+
   /* Check for pending commands and mark to be exeucted */
-  silc_client_command_pending_check(sock->user_data, ctx, 
-                                   silc_command_get(ctx->payload), ident);
+  ctx->callbacks =
+    silc_client_command_pending_check(sock->user_data, ctx, 
+                                     silc_command_get(ctx->payload), 
+                                     ctx->ident, &ctx->callbacks_count);
 
   /* Execute command reply */
+
   command = silc_command_get(ctx->payload);
-  for (cmd = silc_command_reply_list; cmd->cb; cmd++)
-    if (cmd->cmd == command)
-      break;
 
-  if (cmd == NULL || !cmd->cb) {
-    silc_free(ctx);
-    return;
+  /* Try to find matching the command identifier */
+  silc_list_start(client->internal->commands);
+  while ((cmd = silc_list_get(client->internal->commands)) != SILC_LIST_END) {
+    if (cmd->cmd == command && !cmd->ident)
+      reply = cmd->reply;
+    if (cmd->cmd == command && cmd->ident == ctx->ident) {
+      (*cmd->reply)((void *)ctx, NULL);
+      break;
+    }
   }
 
-  cmd->cb(ctx, NULL);
+  if (cmd == SILC_LIST_END) {
+    if (reply)
+      /* No specific identifier for command reply, call first one found */
+      (*reply)(ctx, NULL);
+    else
+      silc_free(ctx);
+  }
 }
 
-/* Returns status message string */
+/* Duplicate Command Reply Context by adding reference counter. The context
+   won't be free'd untill it hits zero. */
 
-char *silc_client_command_status_message(SilcCommandStatus status)
+SilcClientCommandReplyContext 
+silc_client_command_reply_dup(SilcClientCommandReplyContext cmd)
 {
-  int i;
-
-  for (i = 0; silc_command_status_messages[i].message; i++) {
-    if (silc_command_status_messages[i].status == status)
-      break;
-  }
-
-  if (silc_command_status_messages[i].message == NULL)
-    return NULL;
-
-  return silc_command_status_messages[i].message;
+  cmd->users++;
+  SILC_LOG_DEBUG(("Command reply context %p refcnt %d->%d", cmd, 
+                 cmd->users - 1, cmd->users));
+  return cmd;
 }
 
 /* Free command reply context and its internals. */
 
 void silc_client_command_reply_free(SilcClientCommandReplyContext cmd)
 {
-  if (cmd) {
+  cmd->users--;
+  SILC_LOG_DEBUG(("Command reply context %p refcnt %d->%d", cmd, 
+                 cmd->users + 1, cmd->users));
+  if (cmd->users < 1) {
     silc_command_payload_free(cmd->payload);
     silc_free(cmd);
   }
@@ -226,33 +162,33 @@ void silc_client_command_reply_free(SilcClientCommandReplyContext cmd)
 
 static void 
 silc_client_command_reply_whois_save(SilcClientCommandReplyContext cmd,
-                                    SilcCommandStatus status)
+                                    SilcStatus status,
+                                    bool notify)
 {
   SilcClientConnection conn = (SilcClientConnection)cmd->sock->user_data;
   SilcClientID *client_id;
-  SilcIDCacheEntry id_cache = NULL;
   SilcClientEntry client_entry = NULL;
-  int argc;
-  uint32 len;
+  SilcUInt32 len;
   unsigned char *id_data, *tmp;
   char *nickname = NULL, *username = NULL;
   char *realname = NULL;
-  uint32 idle = 0, mode = 0;
-  SilcBuffer channels = NULL;
+  SilcUInt32 idle = 0, mode = 0;
+  SilcBufferStruct channels, ch_user_modes;
+  bool has_channels = FALSE, has_user_modes = FALSE;
   unsigned char *fingerprint;
-  uint32 fingerprint_len;
+  SilcUInt32 fingerprint_len;
   
-  argc = silc_argument_get_arg_num(cmd->args);
-
   id_data = silc_argument_get_arg_type(cmd->args, 2, &len);
   if (!id_data) {
-    COMMAND_REPLY_ERROR;
+    if (notify)
+      COMMAND_REPLY_ERROR;
     return;
   }
   
-  client_id = silc_id_payload_parse_id(id_data, len);
+  client_id = silc_id_payload_parse_id(id_data, len, NULL);
   if (!client_id) {
-    COMMAND_REPLY_ERROR;
+    if (notify)
+      COMMAND_REPLY_ERROR;
     return;
   }
   
@@ -260,15 +196,15 @@ silc_client_command_reply_whois_save(SilcClientCommandReplyContext cmd,
   username = silc_argument_get_arg_type(cmd->args, 4, &len);
   realname = silc_argument_get_arg_type(cmd->args, 5, &len);
   if (!nickname || !username || !realname) {
-    COMMAND_REPLY_ERROR;
+    if (notify)
+      COMMAND_REPLY_ERROR;
     return;
   }
 
   tmp = silc_argument_get_arg_type(cmd->args, 6, &len);
   if (tmp) {
-    channels = silc_buffer_alloc(len);
-    silc_buffer_pull_tail(channels, SILC_BUFFER_END(channels));
-    silc_buffer_put(channels, tmp, len);
+    silc_buffer_set(&channels, tmp, len);
+    has_channels = TRUE;
   }
 
   tmp = silc_argument_get_arg_type(cmd->args, 7, &len);
@@ -281,40 +217,46 @@ silc_client_command_reply_whois_save(SilcClientCommandReplyContext cmd,
 
   fingerprint = silc_argument_get_arg_type(cmd->args, 9, &fingerprint_len);
 
+  tmp = silc_argument_get_arg_type(cmd->args, 10, &len);
+  if (tmp) {
+    silc_buffer_set(&ch_user_modes, tmp, len);
+    has_user_modes = TRUE;
+  }
+
   /* Check if we have this client cached already. */
-  if (!silc_idcache_find_by_id_one_ext(conn->client_cache, (void *)client_id, 
-                                      NULL, NULL, 
-                                      silc_hash_client_id_compare, NULL,
-                                      &id_cache)) {
+  client_entry = silc_client_get_client_by_id(cmd->client, conn, client_id);
+  if (!client_entry) {
     SILC_LOG_DEBUG(("Adding new client entry"));
     client_entry = 
       silc_client_add_client(cmd->client, conn, nickname, username, realname,
                             client_id, mode);
   } else {
-    client_entry = (SilcClientEntry)id_cache->context;
     silc_client_update_client(cmd->client, conn, client_entry, 
                              nickname, username, realname, mode);
     silc_free(client_id);
   }
 
   if (fingerprint && !client_entry->fingerprint) {
-    client_entry->fingerprint = 
-      silc_calloc(fingerprint_len, 
-                 sizeof(*client_entry->fingerprint));
-    memcpy(client_entry->fingerprint, fingerprint, fingerprint_len);
+    client_entry->fingerprint = silc_memdup(fingerprint, fingerprint_len);
     client_entry->fingerprint_len = fingerprint_len;
   }
 
-  if (client_entry->status & SILC_CLIENT_STATUS_RESOLVING)
-    client_entry->status &= ~SILC_CLIENT_STATUS_RESOLVING;
+  /* Take Requested Attributes if set. */
+  tmp = silc_argument_get_arg_type(cmd->args, 11, &len);
+  if (tmp) {
+    if (client_entry->attrs)
+      silc_attribute_payload_list_free(client_entry->attrs);
+    client_entry->attrs = silc_attribute_payload_parse(tmp, len);
+  }
 
-  /* Notify application */
-  if (!cmd->callback)
-    COMMAND_REPLY((ARGS, client_entry, nickname, username, realname, 
-                  channels, mode, idle));
+  client_entry->status &= ~SILC_CLIENT_STATUS_RESOLVING;
 
-  if (channels)
-    silc_buffer_free(channels);
+  /* Notify application */
+  if (!cmd->callbacks_count && notify)
+    COMMAND_REPLY((SILC_ARGS, client_entry, nickname, username, realname, 
+                  has_channels ? &channels : NULL, mode, idle, 
+                  fingerprint, has_user_modes ? &ch_user_modes : NULL,
+                  client_entry->attrs));
 }
 
 /* Received reply for WHOIS command. This maybe called several times
@@ -323,23 +265,44 @@ silc_client_command_reply_whois_save(SilcClientCommandReplyContext cmd,
 SILC_CLIENT_CMD_REPLY_FUNC(whois)
 {
   SilcClientCommandReplyContext cmd = (SilcClientCommandReplyContext)context;
-  SilcCommandStatus status;
+  SilcClientConnection conn = (SilcClientConnection)cmd->sock->user_data;
 
-  COMMAND_CHECK_STATUS_LIST;
+  COMMAND_CHECK_STATUS;
 
   /* Save WHOIS info */
-  silc_client_command_reply_whois_save(cmd, status);
+  silc_client_command_reply_whois_save(cmd, cmd->status, TRUE);
 
   /* Pending callbacks are not executed if this was an list entry */
-  if (status != SILC_STATUS_OK &&
-      status != SILC_STATUS_LIST_END) {
+  if (cmd->status != SILC_STATUS_OK &&
+      cmd->status != SILC_STATUS_LIST_END) {
     silc_client_command_reply_free(cmd);
     return;
   }
 
  out:
   SILC_CLIENT_PENDING_EXEC(cmd, SILC_COMMAND_WHOIS);
-  SILC_CLIENT_PENDING_DESTRUCTOR(cmd, SILC_COMMAND_WHOIS);
+
+ err:
+  /* If we received notify for invalid ID we'll remove the ID if we
+     have it cached. */
+  if (cmd->error == SILC_STATUS_ERR_NO_SUCH_CLIENT_ID) {
+    SilcClientEntry client_entry;
+    SilcUInt32 tmp_len;
+    unsigned char *tmp =
+      silc_argument_get_arg_type(silc_command_get_args(cmd->payload),
+                                2, &tmp_len);
+    if (tmp) {
+      SilcClientID *client_id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
+      if (client_id) {
+       client_entry = silc_client_get_client_by_id(cmd->client, conn,
+                                                   client_id);
+       if (client_entry)
+         silc_client_del_client(cmd->client, conn, client_entry);
+       silc_free(client_id);
+      }
+    }
+  }
+
   silc_client_command_reply_free(cmd);
 }
 
@@ -349,16 +312,14 @@ SILC_CLIENT_CMD_REPLY_FUNC(whowas)
 {
   SilcClientCommandReplyContext cmd = (SilcClientCommandReplyContext)context;
   SilcClientConnection conn = (SilcClientConnection)cmd->sock->user_data;
-  SilcCommandStatus status;
   SilcClientID *client_id;
-  SilcIDCacheEntry id_cache = NULL;
   SilcClientEntry client_entry = NULL;
-  uint32 len;
+  SilcUInt32 len;
   unsigned char *id_data;
   char *nickname, *username;
   char *realname = NULL;
 
-  COMMAND_CHECK_STATUS_LIST;
+  COMMAND_CHECK_STATUS;
 
   id_data = silc_argument_get_arg_type(cmd->args, 2, &len);
   if (!id_data) {
@@ -366,18 +327,14 @@ SILC_CLIENT_CMD_REPLY_FUNC(whowas)
     goto out;
   }
   
-  client_id = silc_id_payload_parse_id(id_data, len);
+  client_id = silc_id_payload_parse_id(id_data, len, NULL);
   if (!client_id) {
     COMMAND_REPLY_ERROR;
     goto out;
   }
 
   /* Get the client entry, if exists */
-  if (silc_idcache_find_by_id_one_ext(conn->client_cache, (void *)client_id, 
-                                     NULL, NULL, 
-                                     silc_hash_client_id_compare, NULL,
-                                     &id_cache)) 
-    client_entry = (SilcClientEntry)id_cache->context;
+  client_entry = silc_client_get_client_by_id(cmd->client, conn, client_id);
   silc_free(client_id);
 
   nickname = silc_argument_get_arg_type(cmd->args, 3, &len);
@@ -391,51 +348,50 @@ SILC_CLIENT_CMD_REPLY_FUNC(whowas)
   /* Notify application. We don't save any history information to any
      cache. Just pass the data to the application for displaying on 
      the screen. */
-  COMMAND_REPLY((ARGS, client_entry, nickname, username, realname));
+  COMMAND_REPLY((SILC_ARGS, client_entry, nickname, username, realname));
 
   /* Pending callbacks are not executed if this was an list entry */
-  if (status != SILC_STATUS_OK &&
-      status != SILC_STATUS_LIST_END) {
+  if (cmd->status != SILC_STATUS_OK &&
+      cmd->status != SILC_STATUS_LIST_END) {
     silc_client_command_reply_free(cmd);
     return;
   }
 
  out:
   SILC_CLIENT_PENDING_EXEC(cmd, SILC_COMMAND_WHOWAS);
-  SILC_CLIENT_PENDING_DESTRUCTOR(cmd, SILC_COMMAND_WHOWAS);
+ err:
   silc_client_command_reply_free(cmd);
 }
 
 static void 
 silc_client_command_reply_identify_save(SilcClientCommandReplyContext cmd,
-                                       SilcCommandStatus status)
+                                       SilcStatus status,
+                                       bool notify)
 {
   SilcClientConnection conn = (SilcClientConnection)cmd->sock->user_data;
   SilcClient client = cmd->client;
   SilcClientID *client_id = NULL;
   SilcServerID *server_id = NULL;
   SilcChannelID *channel_id = NULL;
-  SilcIDCacheEntry id_cache = NULL;
   SilcClientEntry client_entry;
   SilcServerEntry server_entry;
   SilcChannelEntry channel_entry;
-  int argc;
-  uint32 len;
+  SilcUInt32 len;
   unsigned char *id_data;
   char *name = NULL, *info = NULL;
   SilcIDPayload idp = NULL;
   SilcIdType id_type;
   
-  argc = silc_argument_get_arg_num(cmd->args);
-
   id_data = silc_argument_get_arg_type(cmd->args, 2, &len);
   if (!id_data) {
-    COMMAND_REPLY_ERROR;
+    if (notify)
+      COMMAND_REPLY_ERROR;
     return;
   }
-  idp = silc_id_payload_parse_data(id_data, len);
+  idp = silc_id_payload_parse(id_data, len);
   if (!idp) {
-    COMMAND_REPLY_ERROR;
+    if (notify)
+      COMMAND_REPLY_ERROR;
     return;
   }
 
@@ -451,26 +407,22 @@ silc_client_command_reply_identify_save(SilcClientCommandReplyContext cmd,
     SILC_LOG_DEBUG(("Received client information"));
 
     /* Check if we have this client cached already. */
-    if (!silc_idcache_find_by_id_one_ext(conn->client_cache, 
-                                        (void *)client_id, 
-                                        NULL, NULL, 
-                                        silc_hash_client_id_compare, NULL,
-                                        &id_cache)) {
+    client_entry = silc_client_get_client_by_id(cmd->client, conn, client_id);
+    if (!client_entry) {
       SILC_LOG_DEBUG(("Adding new client entry"));
       client_entry = 
        silc_client_add_client(cmd->client, conn, name, info, NULL,
                               silc_id_dup(client_id, id_type), 0);
     } else {
-      client_entry = (SilcClientEntry)id_cache->context;
       silc_client_update_client(cmd->client, conn, client_entry, 
                                name, info, NULL, 0);
     }
 
-    if (client_entry->status & SILC_CLIENT_STATUS_RESOLVING)
-      client_entry->status &= ~SILC_CLIENT_STATUS_RESOLVING;
+    client_entry->status &= ~SILC_CLIENT_STATUS_RESOLVING;
 
     /* Notify application */
-    COMMAND_REPLY((ARGS, client_entry, name, info));
+    if (notify)
+      COMMAND_REPLY((SILC_ARGS, client_entry, name, info));
     break;
 
   case SILC_ID_SERVER:
@@ -479,26 +431,25 @@ silc_client_command_reply_identify_save(SilcClientCommandReplyContext cmd,
     SILC_LOG_DEBUG(("Received server information"));
 
     /* Check if we have this server cached already. */
-    if (!silc_idcache_find_by_id_one(conn->server_cache, 
-                                    (void *)server_id, &id_cache)) {
+    server_entry = silc_client_get_server_by_id(cmd->client, conn, server_id);
+    if (!server_entry) {
       SILC_LOG_DEBUG(("Adding new server entry"));
-      
-      server_entry = silc_calloc(1, sizeof(*server_entry));
-      server_entry->server_id = silc_id_dup(server_id, id_type);
-      if (name)
-       server_entry->server_name = strdup(name);
-      if (info)
-       server_entry->server_info = strdup(info);
-      
-      /* Add server to cache */
-      silc_idcache_add(conn->server_cache, server_entry->server_name,
-                      server_entry->server_id, (void *)server_entry, FALSE);
+      server_entry = silc_client_add_server(cmd->client, conn, name, info,
+                                           silc_id_dup(server_id, id_type));
+      if (!server_entry) {
+       if (notify)
+         COMMAND_REPLY_ERROR;
+       return;
+      }
     } else {
-      server_entry = (SilcServerEntry)id_cache->context;
+      silc_client_update_server(client, conn, server_entry, name, info);
     }
 
+    server_entry->resolve_cmd_ident = 0;
+
     /* Notify application */
-    COMMAND_REPLY((ARGS, server_entry, name, info));
+    if (notify)
+      COMMAND_REPLY((SILC_ARGS, server_entry, name, info));
     break;
 
   case SILC_ID_CHANNEL:
@@ -507,20 +458,20 @@ silc_client_command_reply_identify_save(SilcClientCommandReplyContext cmd,
     SILC_LOG_DEBUG(("Received channel information"));
 
     /* Check if we have this channel cached already. */
-    if (!silc_idcache_find_by_id_one(conn->channel_cache, 
-                                    (void *)channel_id, &id_cache)) {
+    channel_entry = silc_client_get_channel_by_id(client, conn, channel_id);
+    if (!channel_entry) {
       if (!name)
        break;
 
-      SILC_LOG_DEBUG(("Adding new channel entry"));
-      channel_entry = silc_client_new_channel_id(client, conn->sock, 
-                                                strdup(name), 0, idp);
-    } else {
-      channel_entry = (SilcChannelEntry)id_cache->context;
+      /* Add new channel entry */
+      channel_entry = silc_client_add_channel(client, conn, name, 0,
+                                             channel_id);
+      channel_id = NULL;
     }
 
     /* Notify application */
-    COMMAND_REPLY((ARGS, channel_entry, name, info));
+    if (notify)
+      COMMAND_REPLY((SILC_ARGS, channel_entry, name, info));
     break;
   }
 
@@ -537,23 +488,44 @@ silc_client_command_reply_identify_save(SilcClientCommandReplyContext cmd,
 SILC_CLIENT_CMD_REPLY_FUNC(identify)
 {
   SilcClientCommandReplyContext cmd = (SilcClientCommandReplyContext)context;
-  SilcCommandStatus status;
+  SilcClientConnection conn = (SilcClientConnection)cmd->sock->user_data;
 
-  COMMAND_CHECK_STATUS_LIST;
+  COMMAND_CHECK_STATUS;
 
   /* Save IDENTIFY info */
-  silc_client_command_reply_identify_save(cmd, status);
+  silc_client_command_reply_identify_save(cmd, cmd->status, TRUE);
 
   /* Pending callbacks are not executed if this was an list entry */
-  if (status != SILC_STATUS_OK &&
-      status != SILC_STATUS_LIST_END) {
+  if (cmd->status != SILC_STATUS_OK &&
+      cmd->status != SILC_STATUS_LIST_END) {
     silc_client_command_reply_free(cmd);
     return;
   }
 
  out:
   SILC_CLIENT_PENDING_EXEC(cmd, SILC_COMMAND_IDENTIFY);
-  SILC_CLIENT_PENDING_DESTRUCTOR(cmd, SILC_COMMAND_IDENTIFY);
+
+ err:
+  /* If we received notify for invalid ID we'll remove the ID if we
+     have it cached. */
+  if (cmd->error == SILC_STATUS_ERR_NO_SUCH_CLIENT_ID) {
+    SilcClientEntry client_entry;
+    SilcUInt32 tmp_len;
+    unsigned char *tmp =
+      silc_argument_get_arg_type(silc_command_get_args(cmd->payload),
+                                2, &tmp_len);
+    if (tmp) {
+      SilcClientID *client_id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
+      if (client_id) {
+       client_entry = silc_client_get_client_by_id(cmd->client, conn,
+                                                   client_id);
+       if (client_entry)
+         silc_client_del_client(cmd->client, conn, client_entry);
+       silc_free(client_id);
+      }
+    }
+  }
+
   silc_client_command_reply_free(cmd);
 }
 
@@ -564,45 +536,56 @@ SILC_CLIENT_CMD_REPLY_FUNC(nick)
 {
   SilcClientCommandReplyContext cmd = (SilcClientCommandReplyContext)context;
   SilcClientConnection conn = (SilcClientConnection)cmd->sock->user_data;
-  SilcCommandStatus status;
   SilcIDPayload idp;
   unsigned char *tmp;
-  uint32 argc, len;
+  SilcUInt32 argc, len;
 
   SILC_LOG_DEBUG(("Start"));
 
-  SILC_GET16_MSB(status, silc_argument_get_arg_type(cmd->args, 1, NULL));
-  if (status != SILC_STATUS_OK) {
-    cmd->client->ops->say(cmd->client, conn, SILC_CLIENT_MESSAGE_ERROR,
-                         "Cannot set nickname: %s", 
-                         silc_client_command_status_message(status));
+  if (cmd->error != SILC_STATUS_OK) {
+    SAY(cmd->client, conn, SILC_CLIENT_MESSAGE_ERROR,
+       "Cannot set nickname: %s", 
+       silc_get_status_message(cmd->error));
     COMMAND_REPLY_ERROR;
     goto out;
   }
 
   argc = silc_argument_get_arg_num(cmd->args);
-  if (argc < 2 || argc > 2) {
-    cmd->client->ops->say(cmd->client, conn, SILC_CLIENT_MESSAGE_ERROR,
-                         "Cannot set nickname: bad reply to command");
+  if (argc < 2 || argc > 3) {
+    SAY(cmd->client, conn, SILC_CLIENT_MESSAGE_ERROR,
+       "Cannot set nickname: bad reply to command");
     COMMAND_REPLY_ERROR;
     goto out;
   }
 
   /* Take received Client ID */
   tmp = silc_argument_get_arg_type(cmd->args, 2, &len);
-  idp = silc_id_payload_parse_data(tmp, len);
+  idp = silc_id_payload_parse(tmp, len);
   if (!idp) {
     COMMAND_REPLY_ERROR;
     goto out;
   }
   silc_client_receive_new_id(cmd->client, cmd->sock, idp);
+
+  /* Take the new nickname too */
+  tmp = silc_argument_get_arg_type(cmd->args, 3, &len);
+  if (tmp) {
+    silc_idcache_del_by_context(conn->internal->client_cache,
+                               conn->local_entry);
+    if (conn->nickname)
+      silc_free(conn->nickname);
+    conn->nickname = strdup(tmp);
+    conn->local_entry->nickname = conn->nickname;
+    silc_client_nickname_format(cmd->client, conn, conn->local_entry);
+    silc_idcache_add(conn->internal->client_cache, strdup(tmp),
+                     conn->local_entry->id, conn->local_entry, 0, NULL);
+  }
     
   /* Notify application */
-  COMMAND_REPLY((ARGS, conn->local_entry));
+  COMMAND_REPLY((SILC_ARGS, conn->local_entry, conn->local_entry->nickname));
 
  out:
   SILC_CLIENT_PENDING_EXEC(cmd, SILC_COMMAND_NICK);
-  SILC_CLIENT_PENDING_DESTRUCTOR(cmd, SILC_COMMAND_NICK);
   silc_client_command_reply_free(cmd);
 }
 
@@ -611,31 +594,65 @@ SILC_CLIENT_CMD_REPLY_FUNC(nick)
 SILC_CLIENT_CMD_REPLY_FUNC(list)
 {
   SilcClientCommandReplyContext cmd = (SilcClientCommandReplyContext)context;
-  SilcCommandStatus status;
+  SilcClientConnection conn = (SilcClientConnection)cmd->sock->user_data;
   unsigned char *tmp, *name, *topic;
-  uint32 usercount = 0;
+  SilcUInt32 usercount = 0, len;
+  SilcChannelID *channel_id = NULL;
+  SilcChannelEntry channel_entry;
+
+  COMMAND_CHECK_STATUS;
 
-  COMMAND_CHECK_STATUS_LIST;
+  tmp = silc_argument_get_arg_type(cmd->args, 2, &len);
+  if (!tmp) {
+    COMMAND_REPLY_ERROR;
+    goto out;
+  }
+
+  channel_id = silc_id_payload_parse_id(tmp, len, NULL);
+  if (!channel_id) {
+    COMMAND_REPLY_ERROR;
+    goto out;
+  }
 
   name = silc_argument_get_arg_type(cmd->args, 3, NULL);
+  if (!name) {
+    COMMAND_REPLY_ERROR;
+    goto out;
+  }
+
   topic = silc_argument_get_arg_type(cmd->args, 4, NULL);
   tmp = silc_argument_get_arg_type(cmd->args, 5, NULL);
   if (tmp)
     SILC_GET32_MSB(usercount, tmp);
 
+  /* Check whether the channel exists, and add it to cache if it doesn't. */
+  channel_entry = silc_client_get_channel_by_id(cmd->client, conn, 
+                                               channel_id);
+  if (!channel_entry) {
+    /* Add new channel entry */
+    channel_entry = silc_client_add_channel(cmd->client, conn, name, 0,
+                                           channel_id);
+    if (!channel_entry) {
+      COMMAND_REPLY_ERROR;
+      goto out;
+    }
+    channel_id = NULL;
+  }
+
   /* Notify application */
-  COMMAND_REPLY((ARGS, NULL, name, topic, usercount));
+  COMMAND_REPLY((SILC_ARGS, channel_entry, name, topic, usercount));
 
   /* Pending callbacks are not executed if this was an list entry */
-  if (status != SILC_STATUS_OK &&
-      status != SILC_STATUS_LIST_END) {
+  if (cmd->status != SILC_STATUS_OK &&
+      cmd->status != SILC_STATUS_LIST_END) {
     silc_client_command_reply_free(cmd);
     return;
   }
 
  out:
+  silc_free(channel_id);
   SILC_CLIENT_PENDING_EXEC(cmd, SILC_COMMAND_LIST);
-  SILC_CLIENT_PENDING_DESTRUCTOR(cmd, SILC_COMMAND_LIST);
+ err:
   silc_client_command_reply_free(cmd);
 }
 
@@ -645,18 +662,15 @@ SILC_CLIENT_CMD_REPLY_FUNC(topic)
 {
   SilcClientCommandReplyContext cmd = (SilcClientCommandReplyContext)context;
   SilcClientConnection conn = (SilcClientConnection)cmd->sock->user_data;
-  SilcCommandStatus status;
   SilcChannelEntry channel;
   SilcChannelID *channel_id = NULL;
-  SilcIDCacheEntry id_cache = NULL;
   unsigned char *tmp;
   char *topic;
-  uint32 argc, len;
+  SilcUInt32 argc, len;
 
-  SILC_GET16_MSB(status, silc_argument_get_arg_type(cmd->args, 1, NULL));
-  if (status != SILC_STATUS_OK) {
-    cmd->client->ops->say(cmd->client, conn, SILC_CLIENT_MESSAGE_ERROR,
-            "%s", silc_client_command_status_message(status));
+  if (cmd->error != SILC_STATUS_OK) {
+    SAY(cmd->client, conn, SILC_CLIENT_MESSAGE_ERROR,
+       "%s", silc_get_status_message(cmd->error));
     COMMAND_REPLY_ERROR;
     goto out;
   }
@@ -677,26 +691,23 @@ SILC_CLIENT_CMD_REPLY_FUNC(topic)
   if (!topic)
     goto out;
 
-  channel_id = silc_id_payload_parse_id(tmp, len);
+  channel_id = silc_id_payload_parse_id(tmp, len, NULL);
   if (!channel_id)
     goto out;
 
   /* Get the channel entry */
-  if (!silc_idcache_find_by_id_one(conn->channel_cache, (void *)channel_id,
-                                  &id_cache)) {
+  channel = silc_client_get_channel_by_id(cmd->client, conn, channel_id);
+  if (!channel) {
     silc_free(channel_id);
     COMMAND_REPLY_ERROR;
     goto out;
   }
   
-  channel = (SilcChannelEntry)id_cache->context;
-
   /* Notify application */
-  COMMAND_REPLY((ARGS, channel, topic));
+  COMMAND_REPLY((SILC_ARGS, channel, topic));
 
  out:
   SILC_CLIENT_PENDING_EXEC(cmd, SILC_COMMAND_TOPIC);
-  SILC_CLIENT_PENDING_DESTRUCTOR(cmd, SILC_COMMAND_TOPIC);
   silc_client_command_reply_free(cmd);
 }
 
@@ -706,18 +717,15 @@ SILC_CLIENT_CMD_REPLY_FUNC(invite)
 {
   SilcClientCommandReplyContext cmd = (SilcClientCommandReplyContext)context;
   SilcClientConnection conn = (SilcClientConnection)cmd->sock->user_data;
-  SilcCommandStatus status;
   SilcChannelEntry channel;
   SilcChannelID *channel_id;
-  SilcIDCacheEntry id_cache;
   unsigned char *tmp;
-  uint32 len;
+  SilcUInt32 len;
+  SilcBufferStruct buf;
 
-  tmp = silc_argument_get_arg_type(cmd->args, 1, NULL);
-  SILC_GET16_MSB(status, tmp);
-  if (status != SILC_STATUS_OK) {
-    cmd->client->ops->say(cmd->client, conn, SILC_CLIENT_MESSAGE_ERROR,
-            "%s", silc_client_command_status_message(status));
+  if (cmd->error != SILC_STATUS_OK) {
+    SAY(cmd->client, conn, SILC_CLIENT_MESSAGE_ERROR,
+       "%s", silc_get_status_message(cmd->error));
     COMMAND_REPLY_ERROR;
     goto out;
   }
@@ -727,29 +735,28 @@ SILC_CLIENT_CMD_REPLY_FUNC(invite)
   if (!tmp)
     goto out;
 
-  channel_id = silc_id_payload_parse_id(tmp, len);
+  channel_id = silc_id_payload_parse_id(tmp, len, NULL);
   if (!channel_id)
     goto out;
 
   /* Get the channel entry */
-  if (!silc_idcache_find_by_id_one(conn->channel_cache, (void *)channel_id,
-                                  &id_cache)) {
+  channel = silc_client_get_channel_by_id(cmd->client, conn, channel_id);
+  if (!channel) {
     silc_free(channel_id);
     COMMAND_REPLY_ERROR;
     goto out;
   }
-  
-  channel = (SilcChannelEntry)id_cache->context;
 
   /* Get the invite list */
   tmp = silc_argument_get_arg_type(cmd->args, 3, &len);
-
+  if (tmp)
+    silc_buffer_set(&buf, tmp, len);
+  
   /* Notify application */
-  COMMAND_REPLY((ARGS, channel, tmp));
+  COMMAND_REPLY((SILC_ARGS, channel, tmp ? &buf : NULL));
 
  out:
   SILC_CLIENT_PENDING_EXEC(cmd, SILC_COMMAND_INVITE);
-  SILC_CLIENT_PENDING_DESTRUCTOR(cmd, SILC_COMMAND_INVITE);
   silc_client_command_reply_free(cmd);
 }
 
@@ -759,22 +766,19 @@ SILC_CLIENT_CMD_REPLY_FUNC(kill)
 {
   SilcClientCommandReplyContext cmd = (SilcClientCommandReplyContext)context;
   SilcClientConnection conn = (SilcClientConnection)cmd->sock->user_data;
-  SilcCommandStatus status;
 
-  SILC_GET16_MSB(status, silc_argument_get_arg_type(cmd->args, 1, NULL));
-  if (status != SILC_STATUS_OK) {
-    cmd->client->ops->say(cmd->client, conn, SILC_CLIENT_MESSAGE_ERROR,
-            "%s", silc_client_command_status_message(status));
+  if (cmd->error != SILC_STATUS_OK) {
+    SAY(cmd->client, conn, SILC_CLIENT_MESSAGE_ERROR,
+       "%s", silc_get_status_message(cmd->error));
     COMMAND_REPLY_ERROR;
     goto out;
   }
 
   /* Notify application */
-  COMMAND_REPLY((ARGS));
+  COMMAND_REPLY((SILC_ARGS));
 
  out:
   SILC_CLIENT_PENDING_EXEC(cmd, SILC_COMMAND_KILL);
-  SILC_CLIENT_PENDING_DESTRUCTOR(cmd, SILC_COMMAND_KILL);
   silc_client_command_reply_free(cmd);
 }
 
@@ -785,19 +789,17 @@ SILC_CLIENT_CMD_REPLY_FUNC(info)
 {
   SilcClientCommandReplyContext cmd = (SilcClientCommandReplyContext)context;
   SilcClientConnection conn = (SilcClientConnection)cmd->sock->user_data;
-  SilcCommandStatus status;
   unsigned char *tmp;
-  SilcIDCacheEntry id_cache;
   SilcServerEntry server;
   SilcServerID *server_id = NULL;
   char *server_name, *server_info;
-  uint32 len;
+  SilcUInt32 len;
 
-  tmp = silc_argument_get_arg_type(cmd->args, 1, NULL);
-  SILC_GET16_MSB(status, tmp);
-  if (status != SILC_STATUS_OK) {
-    cmd->client->ops->say(cmd->client, conn, SILC_CLIENT_MESSAGE_ERROR,
-            "%s", silc_client_command_status_message(status));
+  SILC_LOG_DEBUG(("Start"));
+
+  if (cmd->error != SILC_STATUS_OK) {
+    SAY(cmd->client, conn, SILC_CLIENT_MESSAGE_ERROR, "%s", 
+       silc_get_status_message(cmd->error));
     COMMAND_REPLY_ERROR;
     goto out;
   }
@@ -807,7 +809,7 @@ SILC_CLIENT_CMD_REPLY_FUNC(info)
   if (!tmp)
     goto out;
 
-  server_id = silc_id_payload_parse_id(tmp, len);
+  server_id = silc_id_payload_parse_id(tmp, len, NULL);
   if (!server_id)
     goto out;
 
@@ -822,47 +824,70 @@ SILC_CLIENT_CMD_REPLY_FUNC(info)
     goto out;
 
   /* See whether we have this server cached. If not create it. */
-  if (!silc_idcache_find_by_id_one(conn->server_cache, (void *)server_id,
-                                  &id_cache)) {
+  server = silc_client_get_server_by_id(cmd->client, conn, server_id);
+  if (!server) {
     SILC_LOG_DEBUG(("New server entry"));
-
-    server = silc_calloc(1, sizeof(*server));
-    server->server_name = strdup(server_name);
-    server->server_info = strdup(server_info);
-    server->server_id = silc_id_dup(server_id, SILC_ID_SERVER);
-
-    /* Add it to the cache */
-    silc_idcache_add(conn->server_cache, server->server_name,
-                    server->server_id, (void *)server, FALSE);
-  } else {
-    server = (SilcServerEntry)id_cache->context;
+    server = silc_client_add_server(cmd->client, conn, server_name,
+                                   server_info,
+                                   silc_id_dup(server_id, SILC_ID_SERVER));
+    if (!server)
+      goto out;
   }
-  
+
   /* Notify application */
-  COMMAND_REPLY((ARGS, server, server->server_name, server->server_info));
+  COMMAND_REPLY((SILC_ARGS, server, server->server_name, server->server_info));
 
  out:
   SILC_CLIENT_PENDING_EXEC(cmd, SILC_COMMAND_INFO);
-  SILC_CLIENT_PENDING_DESTRUCTOR(cmd, SILC_COMMAND_INFO);
   silc_free(server_id);
   silc_client_command_reply_free(cmd);
 }
 
+/* Received reply to STATS command. */
+
+SILC_CLIENT_CMD_REPLY_FUNC(stats)
+{
+  SilcClientCommandReplyContext cmd = (SilcClientCommandReplyContext)context;
+  SilcClientConnection conn = (SilcClientConnection)cmd->sock->user_data;
+  unsigned char *tmp, *buf = NULL;
+  SilcUInt32 len, buf_len = 0;
+
+  if (cmd->error != SILC_STATUS_OK) {
+    SAY(cmd->client, conn, SILC_CLIENT_MESSAGE_ERROR,
+       "%s", silc_get_status_message(cmd->error));
+    COMMAND_REPLY_ERROR;
+    goto out;
+  }
+
+  /* Get server ID */
+  tmp = silc_argument_get_arg_type(cmd->args, 2, &len);
+  if (!tmp)
+    goto out;
+
+  /* Get statistics structure */
+  buf = silc_argument_get_arg_type(cmd->args, 3, &buf_len);
+
+  /* Notify application */
+  COMMAND_REPLY((SILC_ARGS, buf, buf_len));
+
+ out:
+  SILC_CLIENT_PENDING_EXEC(cmd, SILC_COMMAND_STATS);
+  silc_client_command_reply_free(cmd);
+}
+
 /* Received reply to PING command. The reply time is shown to user. */
 
 SILC_CLIENT_CMD_REPLY_FUNC(ping)
 {
   SilcClientCommandReplyContext cmd = (SilcClientCommandReplyContext)context;
   SilcClientConnection conn = (SilcClientConnection)cmd->sock->user_data;
-  SilcCommandStatus status;
   void *id;
   int i;
   time_t diff, curtime;
 
-  SILC_GET16_MSB(status, silc_argument_get_arg_type(cmd->args, 1, NULL));
-  if (status != SILC_STATUS_OK) {
-    cmd->client->ops->say(cmd->client, conn, SILC_CLIENT_MESSAGE_ERROR,
-            "%s", silc_client_command_status_message(status));
+  if (cmd->error != SILC_STATUS_OK) {
+    SAY(cmd->client, conn, SILC_CLIENT_MESSAGE_ERROR,
+       "%s", silc_get_status_message(cmd->error));
     COMMAND_REPLY_ERROR;
     goto out;
   }
@@ -870,26 +895,26 @@ SILC_CLIENT_CMD_REPLY_FUNC(ping)
   curtime = time(NULL);
   id = silc_id_str2id(cmd->packet->src_id, cmd->packet->src_id_len,
                      cmd->packet->src_id_type);
-  if (!id || !conn->ping) {
+  if (!id || !conn->internal->ping) {
     COMMAND_REPLY_ERROR;
     goto out;
   }
 
-  for (i = 0; i < conn->ping_count; i++) {
-    if (!conn->ping[i].dest_id)
+  for (i = 0; i < conn->internal->ping_count; i++) {
+    if (!conn->internal->ping[i].dest_id)
       continue;
-    if (SILC_ID_SERVER_COMPARE(conn->ping[i].dest_id, id)) {
-      diff = curtime - conn->ping[i].start_time;
-      cmd->client->ops->say(cmd->client, conn, SILC_CLIENT_MESSAGE_INFO, 
-                           "Ping reply from %s: %d second%s", 
-                           conn->ping[i].dest_name, diff, 
-                           diff == 1 ? "" : "s");
+    if (SILC_ID_SERVER_COMPARE(conn->internal->ping[i].dest_id, id)) {
+      diff = curtime - conn->internal->ping[i].start_time;
+      SAY(cmd->client, conn, SILC_CLIENT_MESSAGE_INFO, 
+         "Ping reply from %s: %d second%s", 
+         conn->internal->ping[i].dest_name, diff, 
+         diff == 1 ? "" : "s");
       
-      conn->ping[i].start_time = 0;
-      silc_free(conn->ping[i].dest_id);
-      conn->ping[i].dest_id = NULL;
-      silc_free(conn->ping[i].dest_name);
-      conn->ping[i].dest_name = NULL;
+      conn->internal->ping[i].start_time = 0;
+      silc_free(conn->internal->ping[i].dest_id);
+      conn->internal->ping[i].dest_id = NULL;
+      silc_free(conn->internal->ping[i].dest_name);
+      conn->internal->ping[i].dest_name = NULL;
       break;
     }
   }
@@ -897,11 +922,10 @@ SILC_CLIENT_CMD_REPLY_FUNC(ping)
   silc_free(id);
 
   /* Notify application */
-  COMMAND_REPLY((ARGS));
+  COMMAND_REPLY((SILC_ARGS));
 
  out:
   SILC_CLIENT_PENDING_EXEC(cmd, SILC_COMMAND_PING);
-  SILC_CLIENT_PENDING_DESTRUCTOR(cmd, SILC_COMMAND_PING);
   silc_client_command_reply_free(cmd);
 }
 
@@ -911,30 +935,28 @@ SILC_CLIENT_CMD_REPLY_FUNC(join)
 {
   SilcClientCommandReplyContext cmd = (SilcClientCommandReplyContext)context;
   SilcClientConnection conn = (SilcClientConnection)cmd->sock->user_data;
-  SilcCommandStatus status;
-  SilcIDPayload idp = NULL;
   SilcChannelEntry channel;
-  SilcIDCacheEntry id_cache = NULL;
   SilcChannelUser chu;
-  uint32 argc, mode, len, list_count;
+  SilcChannelID *channel_id;
+  SilcUInt32 argc, mode = 0, len, list_count;
   char *topic, *tmp, *channel_name = NULL, *hmac;
   SilcBuffer keyp = NULL, client_id_list = NULL, client_mode_list = NULL;
   int i;
 
   SILC_LOG_DEBUG(("Start"));
 
-  SILC_GET16_MSB(status, silc_argument_get_arg_type(cmd->args, 1, NULL));
-  if (status != SILC_STATUS_OK) {
-    cmd->client->ops->say(cmd->client, conn, SILC_CLIENT_MESSAGE_ERROR,
-            "%s", silc_client_command_status_message(status));
+  if (cmd->error != SILC_STATUS_OK) {
+    if (cmd->error != SILC_STATUS_ERR_USER_ON_CHANNEL)
+      SAY(cmd->client, conn, SILC_CLIENT_MESSAGE_ERROR,
+         "%s", silc_get_status_message(cmd->error));
     COMMAND_REPLY_ERROR;
     goto out;
   }
 
   argc = silc_argument_get_arg_num(cmd->args);
-  if (argc < 7 || argc > 14) {
-    cmd->client->ops->say(cmd->client, conn, SILC_CLIENT_MESSAGE_ERROR,
-            "Cannot join channel: Bad reply packet");
+  if (argc < 7) {
+    SAY(cmd->client, conn, SILC_CLIENT_MESSAGE_ERROR,
+       "Cannot join channel: Bad reply packet");
     COMMAND_REPLY_ERROR;
     goto out;
   }
@@ -942,26 +964,24 @@ SILC_CLIENT_CMD_REPLY_FUNC(join)
   /* Get channel name */
   tmp = silc_argument_get_arg_type(cmd->args, 2, NULL);
   if (!tmp) {
-    cmd->client->ops->say(cmd->client, conn, SILC_CLIENT_MESSAGE_ERROR,
-                         "Cannot join channel: Bad reply packet");
+    SAY(cmd->client, conn, SILC_CLIENT_MESSAGE_ERROR,
+       "Cannot join channel: Bad reply packet");
     COMMAND_REPLY_ERROR;
     goto out;
   }
-  channel_name = strdup(tmp);
+  channel_name = tmp;
 
   /* Get Channel ID */
   tmp = silc_argument_get_arg_type(cmd->args, 3, &len);
   if (!tmp) {
-    cmd->client->ops->say(cmd->client, conn, SILC_CLIENT_MESSAGE_ERROR,
-                         "Cannot join channel: Bad reply packet");
+    SAY(cmd->client, conn, SILC_CLIENT_MESSAGE_ERROR,
+       "Cannot join channel: Bad reply packet");
     COMMAND_REPLY_ERROR;
-    silc_free(channel_name);
     goto out;
   }
-  idp = silc_id_payload_parse_data(tmp, len);
-  if (!idp) {
+  channel_id = silc_id_payload_parse_id(tmp, len, NULL);
+  if (!channel_id) {
     COMMAND_REPLY_ERROR;
-    silc_free(channel_name);
     goto out;
   }
 
@@ -969,8 +989,6 @@ SILC_CLIENT_CMD_REPLY_FUNC(join)
   tmp = silc_argument_get_arg_type(cmd->args, 5, NULL);
   if (tmp)
     SILC_GET32_MSB(mode, tmp);
-  else
-    mode = 0;
 
   /* Get channel key */
   tmp = silc_argument_get_arg_type(cmd->args, 7, &len);
@@ -983,15 +1001,16 @@ SILC_CLIENT_CMD_REPLY_FUNC(join)
   /* Get topic */
   topic = silc_argument_get_arg_type(cmd->args, 10, NULL);
 
-  /* If we have the channel entry, remove it and create a new one */
+  /* Check whether we have this channel entry already. */
   channel = silc_client_get_channel(cmd->client, conn, channel_name);
-  if (channel)
-    silc_client_del_channel(cmd->client, conn, channel);
-
-  /* Save received Channel ID. This actually creates the channel */
-  channel = silc_client_new_channel_id(cmd->client, cmd->sock, channel_name, 
-                                      mode, idp);
-  silc_id_payload_free(idp);
+  if (channel) {
+    if (!SILC_ID_CHANNEL_COMPARE(channel->id, channel_id))
+      silc_client_replace_channel_id(cmd->client, conn, channel, channel_id);
+  } else {
+    /* Create new channel entry */
+    channel = silc_client_add_channel(cmd->client, conn, channel_name, 
+                                     mode, channel_id);
+  }
 
   conn->current_channel = channel;
 
@@ -999,11 +1018,9 @@ SILC_CLIENT_CMD_REPLY_FUNC(join)
   hmac = silc_argument_get_arg_type(cmd->args, 11, NULL);
   if (hmac) {
     if (!silc_hmac_alloc(hmac, NULL, &channel->hmac)) {
-      cmd->client->ops->say(cmd->client, conn, SILC_CLIENT_MESSAGE_ERROR, 
-                           "Cannot join channel: Unsupported HMAC `%s'",
-                           hmac);
+      SAY(cmd->client, conn, SILC_CLIENT_MESSAGE_ERROR, 
+         "Cannot join channel: Unsupported HMAC `%s'", hmac);
       COMMAND_REPLY_ERROR;
-      silc_free(channel_name);
       goto out;
     }
   }
@@ -1034,15 +1051,15 @@ SILC_CLIENT_CMD_REPLY_FUNC(join)
 
   /* Add clients we received in the reply to the channel */
   for (i = 0; i < list_count; i++) {
-    uint16 idp_len;
-    uint32 mode;
+    SilcUInt16 idp_len;
+    SilcUInt32 mode;
     SilcClientID *client_id;
     SilcClientEntry client_entry;
 
     /* Client ID */
     SILC_GET16_MSB(idp_len, client_id_list->data + 2);
     idp_len += 4;
-    client_id = silc_id_payload_parse_id(client_id_list->data, idp_len);
+    client_id = silc_id_payload_parse_id(client_id_list->data, idp_len, NULL);
     if (!client_id)
       continue;
 
@@ -1050,27 +1067,25 @@ SILC_CLIENT_CMD_REPLY_FUNC(join)
     SILC_GET32_MSB(mode, client_mode_list->data);
 
     /* Check if we have this client cached already. */
-    if (!silc_idcache_find_by_id_one_ext(conn->client_cache, 
-                                        (void *)client_id, 
-                                        NULL, NULL, 
-                                        silc_hash_client_id_compare, NULL,
-                                        &id_cache)) {
+    client_entry = silc_client_get_client_by_id(cmd->client, conn, client_id);
+    if (!client_entry) {
       /* No, we don't have it, add entry for it. */
       client_entry = 
        silc_client_add_client(cmd->client, conn, NULL, NULL, NULL,
                               silc_id_dup(client_id, SILC_ID_CLIENT), 0);
-    } else {
-      /* Yes, we have it already */
-      client_entry = (SilcClientEntry)id_cache->context;
     }
 
-    /* Join the client to the channel */
-    chu = silc_calloc(1, sizeof(*chu));
-    chu->client = client_entry;
-    chu->mode = mode;
-    silc_list_add(channel->clients, chu);
-    silc_free(client_id);
+    /* Join client to the channel */
+    if (!silc_client_on_channel(channel, client_entry)) {
+      chu = silc_calloc(1, sizeof(*chu));
+      chu->client = client_entry;
+      chu->channel = channel;
+      chu->mode = mode;
+      silc_hash_table_add(channel->user_list, client_entry, chu);
+      silc_hash_table_add(client_entry->channels, channel, chu);
+    }
 
+    silc_free(client_id);
     silc_buffer_pull(client_id_list, idp_len);
     silc_buffer_pull(client_mode_list, 4);
   }
@@ -1080,21 +1095,17 @@ SILC_CLIENT_CMD_REPLY_FUNC(join)
                   client_mode_list->head);
 
   /* Save channel key */
-  if (!(channel->mode & SILC_CHANNEL_MODE_PRIVKEY))
-    silc_client_save_channel_key(conn, keyp, channel);
-
-  /* Client is now joined to the channel */
-  channel->on_channel = TRUE;
+  if (keyp && !(channel->mode & SILC_CHANNEL_MODE_PRIVKEY))
+    silc_client_save_channel_key(cmd->client, conn, keyp, channel);
 
   /* Notify application */
-  COMMAND_REPLY((ARGS, channel_name, channel, mode, 0, 
+  COMMAND_REPLY((SILC_ARGS, channel_name, channel, mode, 0, 
                 keyp ? keyp->head : NULL, NULL,
                 NULL, topic, hmac, list_count, client_id_list, 
                 client_mode_list));
 
  out:
   SILC_CLIENT_PENDING_EXEC(cmd, SILC_COMMAND_JOIN);
-  SILC_CLIENT_PENDING_DESTRUCTOR(cmd, SILC_COMMAND_JOIN);
   silc_client_command_reply_free(cmd);
 
   if (keyp)
@@ -1111,16 +1122,12 @@ SILC_CLIENT_CMD_REPLY_FUNC(motd)
 {
   SilcClientCommandReplyContext cmd = (SilcClientCommandReplyContext)context;
   SilcClientConnection conn = (SilcClientConnection)cmd->sock->user_data;
-  SilcCommandStatus status;
-  uint32 argc, i;
-  unsigned char *tmp;
+  SilcUInt32 argc, i;
   char *motd = NULL, *cp, line[256];
 
-  tmp = silc_argument_get_arg_type(cmd->args, 1, NULL);
-  SILC_GET16_MSB(status, tmp);
-  if (status != SILC_STATUS_OK) {
-    cmd->client->ops->say(cmd->client, conn, SILC_CLIENT_MESSAGE_ERROR,
-            "%s", silc_client_command_status_message(status));
+  if (cmd->error != SILC_STATUS_OK) {
+    SAY(cmd->client, conn, SILC_CLIENT_MESSAGE_ERROR,
+       "%s", silc_get_status_message(cmd->error));
     COMMAND_REPLY_ERROR;
     return;
   }
@@ -1143,14 +1150,13 @@ SILC_CLIENT_CMD_REPLY_FUNC(motd)
     while(cp[i] != 0) {
       if (cp[i++] == '\n') {
        memset(line, 0, sizeof(line));
-       strncat(line, cp, i - 1);
+       silc_strncat(line, sizeof(line), cp, i - 1);
        cp += i;
        
        if (i == 2)
          line[0] = ' ';
        
-       cmd->client->ops->say(cmd->client, conn, SILC_CLIENT_MESSAGE_INFO,
-                             "%s", line);
+       SAY(cmd->client, conn, SILC_CLIENT_MESSAGE_INFO, "%s", line);
        
        if (!strlen(cp))
          break;
@@ -1160,11 +1166,10 @@ SILC_CLIENT_CMD_REPLY_FUNC(motd)
   }
 
   /* Notify application */
-  COMMAND_REPLY((ARGS, motd));
+  COMMAND_REPLY((SILC_ARGS, motd));
 
  out:
   SILC_CLIENT_PENDING_EXEC(cmd, SILC_COMMAND_MOTD);
-  SILC_CLIENT_PENDING_DESTRUCTOR(cmd, SILC_COMMAND_MOTD);
   silc_client_command_reply_free(cmd);
 }
 
@@ -1174,15 +1179,12 @@ SILC_CLIENT_CMD_REPLY_FUNC(umode)
 {
   SilcClientCommandReplyContext cmd = (SilcClientCommandReplyContext)context;
   SilcClientConnection conn = (SilcClientConnection)cmd->sock->user_data;
-  SilcCommandStatus status;
   unsigned char *tmp;
-  uint32 mode;
+  SilcUInt32 mode;
 
-  tmp = silc_argument_get_arg_type(cmd->args, 1, NULL);
-  SILC_GET16_MSB(status, tmp);
-  if (status != SILC_STATUS_OK) {
-    cmd->client->ops->say(cmd->client, conn, SILC_CLIENT_MESSAGE_ERROR,
-            "%s", silc_client_command_status_message(status));
+  if (cmd->error != SILC_STATUS_OK) {
+    SAY(cmd->client, conn, SILC_CLIENT_MESSAGE_ERROR,
+       "%s", silc_get_status_message(cmd->error));
     COMMAND_REPLY_ERROR;
     goto out;
   }
@@ -1197,11 +1199,10 @@ SILC_CLIENT_CMD_REPLY_FUNC(umode)
   conn->local_entry->mode = mode;
 
   /* Notify application */
-  COMMAND_REPLY((ARGS, mode));
+  COMMAND_REPLY((SILC_ARGS, mode));
 
  out:
   SILC_CLIENT_PENDING_EXEC(cmd, SILC_COMMAND_UMODE);
-  SILC_CLIENT_PENDING_DESTRUCTOR(cmd, SILC_COMMAND_UMODE);
   silc_client_command_reply_free(cmd);
 }
 
@@ -1211,18 +1212,15 @@ SILC_CLIENT_CMD_REPLY_FUNC(cmode)
 {
   SilcClientCommandReplyContext cmd = (SilcClientCommandReplyContext)context;
   SilcClientConnection conn = (SilcClientConnection)cmd->sock->user_data;
-  SilcCommandStatus status;
   unsigned char *tmp;
-  uint32 mode;
-  SilcIDCacheEntry id_cache;
+  SilcUInt32 mode;
   SilcChannelID *channel_id;
   SilcChannelEntry channel;
-  uint32 len;
+  SilcUInt32 len;
 
-  SILC_GET16_MSB(status, silc_argument_get_arg_type(cmd->args, 1, NULL));
-  if (status != SILC_STATUS_OK) {
-    cmd->client->ops->say(cmd->client, conn, SILC_CLIENT_MESSAGE_ERROR,
-            "%s", silc_client_command_status_message(status));
+  if (cmd->error != SILC_STATUS_OK) {
+    SAY(cmd->client, conn, SILC_CLIENT_MESSAGE_ERROR,
+       "%s", silc_get_status_message(cmd->error));
     COMMAND_REPLY_ERROR;
     goto out;
   }
@@ -1231,19 +1229,17 @@ SILC_CLIENT_CMD_REPLY_FUNC(cmode)
   tmp = silc_argument_get_arg_type(cmd->args, 2, &len);
   if (!tmp)
     goto out;
-  channel_id = silc_id_payload_parse_id(tmp, len);
+  channel_id = silc_id_payload_parse_id(tmp, len, NULL);
   if (!channel_id)
     goto out;
 
   /* Get the channel entry */
-  if (!silc_idcache_find_by_id_one(conn->channel_cache, (void *)channel_id,
-                                  &id_cache)) {
+  channel = silc_client_get_channel_by_id(cmd->client, conn, channel_id);
+  if (!channel) {
     silc_free(channel_id);
     COMMAND_REPLY_ERROR;
     goto out;
   }
-  
-  channel = (SilcChannelEntry)id_cache->context;
 
   /* Get channel mode */
   tmp = silc_argument_get_arg_type(cmd->args, 3, NULL);
@@ -1258,13 +1254,12 @@ SILC_CLIENT_CMD_REPLY_FUNC(cmode)
   channel->mode = mode;
 
   /* Notify application */
-  COMMAND_REPLY((ARGS, channel, mode));
+  COMMAND_REPLY((SILC_ARGS, channel, mode));
 
   silc_free(channel_id);
 
  out:
   SILC_CLIENT_PENDING_EXEC(cmd, SILC_COMMAND_CMODE);
-  SILC_CLIENT_PENDING_DESTRUCTOR(cmd, SILC_COMMAND_CMODE);
   silc_client_command_reply_free(cmd);
 }
 
@@ -1274,20 +1269,17 @@ SILC_CLIENT_CMD_REPLY_FUNC(cumode)
 {
   SilcClientCommandReplyContext cmd = (SilcClientCommandReplyContext)context;
   SilcClientConnection conn = (SilcClientConnection)cmd->sock->user_data;
-  SilcCommandStatus status;
-  SilcIDCacheEntry id_cache = NULL;
   SilcClientID *client_id;
   SilcChannelID *channel_id;
   SilcClientEntry client_entry;
   SilcChannelEntry channel;
   SilcChannelUser chu;
   unsigned char *modev, *tmp, *id;
-  uint32 len, mode;
+  SilcUInt32 len, mode;
   
-  SILC_GET16_MSB(status, silc_argument_get_arg_type(cmd->args, 1, NULL));
-  if (status != SILC_STATUS_OK) {
-    cmd->client->ops->say(cmd->client, conn, SILC_CLIENT_MESSAGE_ERROR,
-            "%s", silc_client_command_status_message(status));
+  if (cmd->error != SILC_STATUS_OK) {
+    SAY(cmd->client, conn, SILC_CLIENT_MESSAGE_ERROR,
+       "%s", silc_get_status_message(cmd->error));
     COMMAND_REPLY_ERROR;
     goto out;
   }
@@ -1303,20 +1295,18 @@ SILC_CLIENT_CMD_REPLY_FUNC(cumode)
   tmp = silc_argument_get_arg_type(cmd->args, 3, &len);
   if (!tmp)
     goto out;
-  channel_id = silc_id_payload_parse_id(tmp, len);
+  channel_id = silc_id_payload_parse_id(tmp, len, NULL);
   if (!channel_id)
     goto out;
 
   /* Get the channel entry */
-  if (!silc_idcache_find_by_id_one(conn->channel_cache, (void *)channel_id,
-                                  &id_cache)) {
+  channel = silc_client_get_channel_by_id(cmd->client, conn, channel_id);
+  if (!channel) {
     silc_free(channel_id);
     COMMAND_REPLY_ERROR;
     goto out;
   }
   
-  channel = (SilcChannelEntry)id_cache->context;
-
   /* Get Client ID */
   id = silc_argument_get_arg_type(cmd->args, 4, &len);
   if (!id) {
@@ -1324,7 +1314,7 @@ SILC_CLIENT_CMD_REPLY_FUNC(cumode)
     COMMAND_REPLY_ERROR;
     goto out;
   }
-  client_id = silc_id_payload_parse_id(id, len);
+  client_id = silc_id_payload_parse_id(id, len, NULL);
   if (!client_id) {
     silc_free(channel_id);
     COMMAND_REPLY_ERROR;
@@ -1332,36 +1322,27 @@ SILC_CLIENT_CMD_REPLY_FUNC(cumode)
   }
   
   /* Get client entry */
-  if (!silc_idcache_find_by_id_one_ext(conn->client_cache, (void *)client_id, 
-                                      NULL, NULL, 
-                                      silc_hash_client_id_compare, NULL,
-                                      &id_cache)) {
+  client_entry = silc_client_get_client_by_id(cmd->client, conn, client_id);
+  if (!client_entry) {
     silc_free(channel_id);
     silc_free(client_id);
     COMMAND_REPLY_ERROR;
     goto out;
   }
 
-  client_entry = (SilcClientEntry)id_cache->context;
-
   /* Save the mode */
   SILC_GET32_MSB(mode, modev);
-  silc_list_start(channel->clients);
-  while ((chu = silc_list_get(channel->clients)) != SILC_LIST_END) {
-    if (chu->client == client_entry) {
-      chu->mode = mode;
-      break;
-    }
-  }
+  chu = silc_client_on_channel(channel, client_entry);
+  if (chu)
+    chu->mode = mode;
 
   /* Notify application */
-  COMMAND_REPLY((ARGS, mode, channel, client_entry));
+  COMMAND_REPLY((SILC_ARGS, mode, channel, client_entry));
   silc_free(client_id);
   silc_free(channel_id);
   
  out:
   SILC_CLIENT_PENDING_EXEC(cmd, SILC_COMMAND_CUMODE);
-  SILC_CLIENT_PENDING_DESTRUCTOR(cmd, SILC_COMMAND_CUMODE);
   silc_client_command_reply_free(cmd);
 }
 
@@ -1369,24 +1350,19 @@ SILC_CLIENT_CMD_REPLY_FUNC(kick)
 {
   SilcClientCommandReplyContext cmd = (SilcClientCommandReplyContext)context;
   SilcClientConnection conn = (SilcClientConnection)cmd->sock->user_data;
-  SilcCommandStatus status;
-  unsigned char *tmp;
 
-  tmp = silc_argument_get_arg_type(cmd->args, 1, NULL);
-  SILC_GET16_MSB(status, tmp);
-  if (status != SILC_STATUS_OK) {
-    cmd->client->ops->say(cmd->client, conn, SILC_CLIENT_MESSAGE_ERROR,
-            "%s", silc_client_command_status_message(status));
+  if (cmd->error != SILC_STATUS_OK) {
+    SAY(cmd->client, conn, SILC_CLIENT_MESSAGE_ERROR,
+       "%s", silc_get_status_message(cmd->error));
     COMMAND_REPLY_ERROR;
     goto out;
   }
 
   /* Notify application */
-  COMMAND_REPLY((ARGS));
+  COMMAND_REPLY((SILC_ARGS));
 
  out:
   SILC_CLIENT_PENDING_EXEC(cmd, SILC_COMMAND_KICK);
-  SILC_CLIENT_PENDING_DESTRUCTOR(cmd, SILC_COMMAND_KICK);
   silc_client_command_reply_free(cmd);
 }
 
@@ -1394,24 +1370,19 @@ SILC_CLIENT_CMD_REPLY_FUNC(silcoper)
 {
   SilcClientCommandReplyContext cmd = (SilcClientCommandReplyContext)context;
   SilcClientConnection conn = (SilcClientConnection)cmd->sock->user_data;
-  SilcCommandStatus status;
-  unsigned char *tmp;
 
-  tmp = silc_argument_get_arg_type(cmd->args, 1, NULL);
-  SILC_GET16_MSB(status, tmp);
-  if (status != SILC_STATUS_OK) {
-    cmd->client->ops->say(cmd->client, conn, SILC_CLIENT_MESSAGE_ERROR,
-            "%s", silc_client_command_status_message(status));
+  if (cmd->error != SILC_STATUS_OK) {
+    SAY(cmd->client, conn, SILC_CLIENT_MESSAGE_ERROR,
+       "%s", silc_get_status_message(cmd->error));
     COMMAND_REPLY_ERROR;
     goto out;
   }
 
   /* Notify application */
-  COMMAND_REPLY((ARGS));
+  COMMAND_REPLY((SILC_ARGS));
 
  out:
   SILC_CLIENT_PENDING_EXEC(cmd, SILC_COMMAND_SILCOPER);
-  SILC_CLIENT_PENDING_DESTRUCTOR(cmd, SILC_COMMAND_SILCOPER);
   silc_client_command_reply_free(cmd);
 }
 
@@ -1419,49 +1390,69 @@ SILC_CLIENT_CMD_REPLY_FUNC(oper)
 {
   SilcClientCommandReplyContext cmd = (SilcClientCommandReplyContext)context;
   SilcClientConnection conn = (SilcClientConnection)cmd->sock->user_data;
-  SilcCommandStatus status;
-  unsigned char *tmp;
 
-  tmp = silc_argument_get_arg_type(cmd->args, 1, NULL);
-  SILC_GET16_MSB(status, tmp);
-  if (status != SILC_STATUS_OK) {
-    cmd->client->ops->say(cmd->client, conn, SILC_CLIENT_MESSAGE_ERROR,
-            "%s", silc_client_command_status_message(status));
+  if (cmd->error != SILC_STATUS_OK) {
+    SAY(cmd->client, conn, SILC_CLIENT_MESSAGE_ERROR,
+       "%s", silc_get_status_message(cmd->error));
     COMMAND_REPLY_ERROR;
     goto out;
   }
 
   /* Notify application */
-  COMMAND_REPLY((ARGS));
+  COMMAND_REPLY((SILC_ARGS));
 
  out:
   SILC_CLIENT_PENDING_EXEC(cmd, SILC_COMMAND_OPER);
-  SILC_CLIENT_PENDING_DESTRUCTOR(cmd, SILC_COMMAND_OPER);
   silc_client_command_reply_free(cmd);
 }
 
-SILC_CLIENT_CMD_REPLY_FUNC(connect)
+SILC_CLIENT_CMD_REPLY_FUNC(detach)
 {
   SilcClientCommandReplyContext cmd = (SilcClientCommandReplyContext)context;
   SilcClientConnection conn = (SilcClientConnection)cmd->sock->user_data;
-  SilcCommandStatus status;
-  unsigned char *tmp;
+  SilcBuffer detach;
 
-  tmp = silc_argument_get_arg_type(cmd->args, 1, NULL);
-  SILC_GET16_MSB(status, tmp);
-  if (status != SILC_STATUS_OK) {
-    cmd->client->ops->say(cmd->client, conn, SILC_CLIENT_MESSAGE_ERROR,
-            "%s", silc_client_command_status_message(status));
+  if (cmd->error != SILC_STATUS_OK) {
+    SAY(cmd->client, conn, SILC_CLIENT_MESSAGE_ERROR,
+       "%s", silc_get_status_message(cmd->error));
     COMMAND_REPLY_ERROR;
     goto out;
   }
 
   /* Notify application */
-  COMMAND_REPLY((ARGS));
+  COMMAND_REPLY((SILC_ARGS));
+
+  /* Generate the detachment data and deliver it to the client in the
+     detach client operation */
+  detach = silc_client_get_detach_data(cmd->client, conn);
+  if (detach) {
+    cmd->client->internal->ops->detach(cmd->client, conn, 
+                                      detach->data, detach->len);
+    silc_buffer_free(detach);
+  }
 
  out:
-  SILC_CLIENT_PENDING_EXEC(cmd, SILC_COMMAND_CONNECT);
-  SILC_CLIENT_PENDING_DESTRUCTOR(cmd, SILC_COMMAND_CONNECT);
+  SILC_CLIENT_PENDING_EXEC(cmd, SILC_COMMAND_DETACH);
+  silc_client_command_reply_free(cmd);
+}
+
+SILC_CLIENT_CMD_REPLY_FUNC(watch)
+{
+  SilcClientCommandReplyContext cmd = (SilcClientCommandReplyContext)context;
+  SilcClientConnection conn = (SilcClientConnection)cmd->sock->user_data;
+
+  if (cmd->error != SILC_STATUS_OK) {
+    SAY(cmd->client, conn, SILC_CLIENT_MESSAGE_ERROR,
+       "%s", silc_get_status_message(cmd->error));
+    COMMAND_REPLY_ERROR;
+    goto out;
+  }
+
+  /* Notify application */
+  COMMAND_REPLY((SILC_ARGS));
+
+ out:
+  SILC_CLIENT_PENDING_EXEC(cmd, SILC_COMMAND_WATCH);
   silc_client_command_reply_free(cmd);
 }
 
@@ -1469,18 +1460,15 @@ SILC_CLIENT_CMD_REPLY_FUNC(ban)
 {
   SilcClientCommandReplyContext cmd = (SilcClientCommandReplyContext)context;
   SilcClientConnection conn = (SilcClientConnection)cmd->sock->user_data;
-  SilcCommandStatus status;
-  SilcIDCacheEntry id_cache = NULL;
   SilcChannelEntry channel;
   SilcChannelID *channel_id;
   unsigned char *tmp;
-  uint32 len;
+  SilcUInt32 len;
+  SilcBufferStruct buf;
 
-  tmp = silc_argument_get_arg_type(cmd->args, 1, NULL);
-  SILC_GET16_MSB(status, tmp);
-  if (status != SILC_STATUS_OK) {
-    cmd->client->ops->say(cmd->client, conn, SILC_CLIENT_MESSAGE_ERROR,
-            "%s", silc_client_command_status_message(status));
+  if (cmd->error != SILC_STATUS_OK) {
+    SAY(cmd->client, conn, SILC_CLIENT_MESSAGE_ERROR,
+       "%s", silc_get_status_message(cmd->error));
     COMMAND_REPLY_ERROR;
     goto out;
   }
@@ -1490,147 +1478,128 @@ SILC_CLIENT_CMD_REPLY_FUNC(ban)
   if (!tmp)
     goto out;
 
-  channel_id = silc_id_payload_parse_id(tmp, len);
+  channel_id = silc_id_payload_parse_id(tmp, len, NULL);
   if (!channel_id)
     goto out;
 
   /* Get the channel entry */
-  if (!silc_idcache_find_by_id_one(conn->channel_cache, (void *)channel_id,
-                                  &id_cache)) {
+  channel = silc_client_get_channel_by_id(cmd->client, conn, channel_id);
+  if (!channel) {
     silc_free(channel_id);
     COMMAND_REPLY_ERROR;
     goto out;
   }
   
-  channel = (SilcChannelEntry)id_cache->context;
-
   /* Get the ban list */
   tmp = silc_argument_get_arg_type(cmd->args, 3, &len);
-
+  if (tmp)
+    silc_buffer_set(&buf, tmp, len);
+  
   /* Notify application */
-  COMMAND_REPLY((ARGS, channel, tmp));
+  COMMAND_REPLY((SILC_ARGS, channel, tmp ? &buf : NULL));
 
  out:
   SILC_CLIENT_PENDING_EXEC(cmd, SILC_COMMAND_BAN);
-  SILC_CLIENT_PENDING_DESTRUCTOR(cmd, SILC_COMMAND_BAN);
   silc_client_command_reply_free(cmd);
 }
 
-SILC_CLIENT_CMD_REPLY_FUNC(close)
+/* Reply to LEAVE command. */
+
+SILC_CLIENT_CMD_REPLY_FUNC(leave)
 {
   SilcClientCommandReplyContext cmd = (SilcClientCommandReplyContext)context;
   SilcClientConnection conn = (SilcClientConnection)cmd->sock->user_data;
-  SilcCommandStatus status;
+  SilcChannelID *channel_id;
+  SilcChannelEntry channel = NULL;
   unsigned char *tmp;
+  SilcUInt32 len;
 
-  tmp = silc_argument_get_arg_type(cmd->args, 1, NULL);
-  SILC_GET16_MSB(status, tmp);
-  if (status != SILC_STATUS_OK) {
-    cmd->client->ops->say(cmd->client, conn, SILC_CLIENT_MESSAGE_ERROR,
-            "%s", silc_client_command_status_message(status));
+  if (cmd->error != SILC_STATUS_OK) {
+    SAY(cmd->client, conn, SILC_CLIENT_MESSAGE_ERROR,
+       "%s", silc_get_status_message(cmd->error));
     COMMAND_REPLY_ERROR;
     goto out;
   }
 
-  /* Notify application */
-  COMMAND_REPLY((ARGS));
+  /* From protocol version 1.1 we get the channel ID of the left channel */
+  tmp = silc_argument_get_arg_type(cmd->args, 2, &len);
+  if (tmp) {
+    channel_id = silc_id_payload_parse_id(tmp, len, NULL);
+    if (!channel_id)
+      goto out;
 
- out:
-  SILC_CLIENT_PENDING_EXEC(cmd, SILC_COMMAND_CLOSE);
-  SILC_CLIENT_PENDING_DESTRUCTOR(cmd, SILC_COMMAND_CLOSE);
-  silc_client_command_reply_free(cmd);
-}
-SILC_CLIENT_CMD_REPLY_FUNC(shutdown)
-{
-  SilcClientCommandReplyContext cmd = (SilcClientCommandReplyContext)context;
-  SilcClientConnection conn = (SilcClientConnection)cmd->sock->user_data;
-  SilcCommandStatus status;
-  unsigned char *tmp;
+    /* Get the channel entry */
+    channel = silc_client_get_channel_by_id(cmd->client, conn, channel_id);
+    if (!channel) {
+      silc_free(channel_id);
+      COMMAND_REPLY_ERROR;
+      goto out;
+    }
 
-  tmp = silc_argument_get_arg_type(cmd->args, 1, NULL);
-  SILC_GET16_MSB(status, tmp);
-  if (status != SILC_STATUS_OK) {
-    cmd->client->ops->say(cmd->client, conn, SILC_CLIENT_MESSAGE_ERROR,
-            "%s", silc_client_command_status_message(status));
-    COMMAND_REPLY_ERROR;
-    goto out;
+    silc_free(channel_id);
   }
 
   /* Notify application */
-  COMMAND_REPLY((ARGS));
+  COMMAND_REPLY((SILC_ARGS, channel));
 
  out:
-  SILC_CLIENT_PENDING_EXEC(cmd, SILC_COMMAND_SHUTDOWN);
-  SILC_CLIENT_PENDING_DESTRUCTOR(cmd, SILC_COMMAND_SHUTDOWN);
+  SILC_CLIENT_PENDING_EXEC(cmd, SILC_COMMAND_LEAVE);
   silc_client_command_reply_free(cmd);
 }
-/* Reply to LEAVE command. */
 
-SILC_CLIENT_CMD_REPLY_FUNC(leave)
+/* Channel resolving callback for USERS command reply. */
+
+static void silc_client_command_reply_users_cb(SilcClient client,
+                                              SilcClientConnection conn,
+                                              SilcChannelEntry *channels,
+                                              SilcUInt32 channels_count,
+                                              void *context)
 {
-  SilcClientCommandReplyContext cmd = (SilcClientCommandReplyContext)context;
-  SilcClientConnection conn = (SilcClientConnection)cmd->sock->user_data;
-  SilcCommandStatus status;
-  unsigned char *tmp;
+  if (!channels_count) {
+    SilcClientCommandReplyContext cmd = (SilcClientCommandReplyContext)context;
+    SilcClientConnection conn = (SilcClientConnection)cmd->sock->user_data;
 
-  tmp = silc_argument_get_arg_type(cmd->args, 1, NULL);
-  SILC_GET16_MSB(status, tmp);
-  if (status != SILC_STATUS_OK) {
-    cmd->client->ops->say(cmd->client, conn, SILC_CLIENT_MESSAGE_ERROR,
-            "%s", silc_client_command_status_message(status));
+    cmd->status = cmd->error = SILC_STATUS_ERR_NO_SUCH_CHANNEL;
+    SAY(cmd->client, conn, SILC_CLIENT_MESSAGE_ERROR,
+       "%s", silc_get_status_message(cmd->error));
     COMMAND_REPLY_ERROR;
-    goto out;
+    SILC_CLIENT_PENDING_EXEC(cmd, SILC_COMMAND_USERS);
+    silc_client_command_reply_free(cmd);
+    return;
   }
 
-  /* Notify application */
-  COMMAND_REPLY((ARGS));
-
- out:
-  SILC_CLIENT_PENDING_EXEC(cmd, SILC_COMMAND_LEAVE);
-  SILC_CLIENT_PENDING_DESTRUCTOR(cmd, SILC_COMMAND_LEAVE);
-  silc_client_command_reply_free(cmd);
+  silc_client_command_reply_users(context, NULL);
 }
 
-/* Reply to USERS command. Received list of client ID's and theirs modes
-   on the channel we requested. */
-
-SILC_CLIENT_CMD_REPLY_FUNC(users)
+static int
+silc_client_command_reply_users_save(SilcClientCommandReplyContext cmd,
+                                    SilcStatus status,
+                                    bool notify,
+                                    SilcGetChannelCallback get_channel,
+                                    SilcCommandCb get_clients)
 {
-  SilcClientCommandReplyContext cmd = (SilcClientCommandReplyContext)context;
   SilcClientConnection conn = (SilcClientConnection)cmd->sock->user_data;
-  SilcCommandStatus status;
-  SilcIDCacheEntry id_cache = NULL;
   SilcChannelEntry channel;
+  SilcClientEntry client_entry;
   SilcChannelUser chu;
   SilcChannelID *channel_id = NULL;
-  SilcBuffer client_id_list = NULL;
-  SilcBuffer client_mode_list = NULL;
+  SilcBufferStruct client_id_list, client_mode_list;
   unsigned char *tmp;
-  uint32 tmp_len, list_count;
+  SilcUInt32 tmp_len, list_count;
   int i;
   unsigned char **res_argv = NULL;
-  uint32 *res_argv_lens = NULL, *res_argv_types = NULL, res_argc = 0;
+  SilcUInt32 *res_argv_lens = NULL, *res_argv_types = NULL, res_argc = 0;
+  bool wait_res = FALSE;
 
   SILC_LOG_DEBUG(("Start"));
 
-  tmp = silc_argument_get_arg_type(cmd->args, 1, NULL);
-  SILC_GET16_MSB(status, tmp);
-  if (status != SILC_STATUS_OK) {
-    cmd->client->ops->say(cmd->client, conn, SILC_CLIENT_MESSAGE_ERROR,
-            "%s", silc_client_command_status_message(status));
-    COMMAND_REPLY_ERROR;
-    goto out;
-  }
-
   /* Get channel ID */
   tmp = silc_argument_get_arg_type(cmd->args, 2, &tmp_len);
   if (!tmp) {
     COMMAND_REPLY_ERROR;
     goto out;
   }
-  channel_id = silc_id_payload_parse_id(tmp, tmp_len);
+  channel_id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
   if (!channel_id) {
     COMMAND_REPLY_ERROR;
     goto out;
@@ -1650,10 +1619,7 @@ SILC_CLIENT_CMD_REPLY_FUNC(users)
     COMMAND_REPLY_ERROR;
     goto out;
   }
-
-  client_id_list = silc_buffer_alloc(tmp_len);
-  silc_buffer_pull_tail(client_id_list, tmp_len);
-  silc_buffer_put(client_id_list, tmp, tmp_len);
+  silc_buffer_set(&client_id_list, tmp, tmp_len);
 
   /* Get client mode list */
   tmp = silc_argument_get_arg_type(cmd->args, 5, &tmp_len);
@@ -1661,73 +1627,39 @@ SILC_CLIENT_CMD_REPLY_FUNC(users)
     COMMAND_REPLY_ERROR;
     goto out;
   }
-
-  client_mode_list = silc_buffer_alloc(tmp_len);
-  silc_buffer_pull_tail(client_mode_list, tmp_len);
-  silc_buffer_put(client_mode_list, tmp, tmp_len);
+  silc_buffer_set(&client_mode_list, tmp, tmp_len);
 
   /* Get channel entry */
-  if (!silc_idcache_find_by_id_one(conn->channel_cache, (void *)channel_id,
-                                  &id_cache)) {
+  channel = silc_client_get_channel_by_id(cmd->client, conn, channel_id);
+  if (!channel) {
     /* Resolve the channel from server */
-    silc_idlist_get_channel_by_id(cmd->client, conn, channel_id, TRUE);
-    
-    /* Register pending command callback. After we've received the channel
-       information we will reprocess this command reply by re-calling this
-       USERS command reply callback. */
-    silc_client_command_pending(conn, SILC_COMMAND_IDENTIFY, conn->cmd_ident,
-                               NULL, silc_client_command_reply_users, cmd);
-    return;
-  } else {
-    channel = (SilcChannelEntry)id_cache->context;
+    silc_client_get_channel_by_id_resolve(cmd->client, conn, channel_id,
+                                         get_channel, cmd);
+    silc_free(channel_id);
+    return 1;
   }
 
-  /* Remove old client list from channel. */
-  silc_list_start(channel->clients);
-  while ((chu = silc_list_get(channel->clients)) != SILC_LIST_END) {
-    silc_list_del(channel->clients, chu);
-    silc_free(chu);
-  }
+  SILC_LOG_DEBUG(("channel %s, %d users", channel->channel_name, list_count));
 
   /* Cache the received Client ID's and modes. */
   for (i = 0; i < list_count; i++) {
-    uint16 idp_len;
-    uint32 mode;
+    SilcUInt16 idp_len;
+    SilcUInt32 mode;
     SilcClientID *client_id;
-    SilcClientEntry client;
 
     /* Client ID */
-    SILC_GET16_MSB(idp_len, client_id_list->data + 2);
+    SILC_GET16_MSB(idp_len, client_id_list.data + 2);
     idp_len += 4;
-    client_id = silc_id_payload_parse_id(client_id_list->data, idp_len);
+    client_id = silc_id_payload_parse_id(client_id_list.data, idp_len, NULL);
     if (!client_id)
       continue;
 
     /* Mode */
-    SILC_GET32_MSB(mode, client_mode_list->data);
+    SILC_GET32_MSB(mode, client_mode_list.data);
 
     /* Check if we have this client cached already. */
-    id_cache = NULL;
-    silc_idcache_find_by_id_one_ext(conn->client_cache, 
-                                   (void *)client_id, 
-                                   NULL, NULL, 
-                                   silc_hash_client_id_compare, NULL,
-                                   &id_cache);
-
-    if (!id_cache || !((SilcClientEntry)id_cache->context)->username ||
-       !((SilcClientEntry)id_cache->context)->realname) {
-
-      if (id_cache && id_cache->context) {
-       SilcClientEntry client_entry = (SilcClientEntry)id_cache->context;
-       if (client_entry->status & SILC_CLIENT_STATUS_RESOLVING) {
-         client_entry->status &= ~SILC_CLIENT_STATUS_RESOLVING;
-         silc_buffer_pull(client_id_list, idp_len);
-         silc_buffer_pull(client_mode_list, 4);
-         continue;
-       }
-       client_entry->status |= SILC_CLIENT_STATUS_RESOLVING;
-      }
-
+    client_entry = silc_client_get_client_by_id(cmd->client, conn, client_id);
+    if (!client_entry || !client_entry->username || !client_entry->realname) {
       /* No we don't have it (or it is incomplete in information), query
         it from the server. Assemble argument table that will be sent
         for the WHOIS command later. */
@@ -1737,24 +1669,24 @@ SILC_CLIENT_CMD_REPLY_FUNC(users)
                                   (res_argc + 1));
       res_argv_types = silc_realloc(res_argv_types, sizeof(*res_argv_types) *
                                    (res_argc + 1));
-      res_argv[res_argc] = client_id_list->data;
+      res_argv[res_argc] = client_id_list.data;
       res_argv_lens[res_argc] = idp_len;
-      res_argv_types[res_argc] = res_argc + 3;
+      res_argv_types[res_argc] = res_argc + 4;
       res_argc++;
     } else {
-      /* Found the client, join it to the channel */
-      client = (SilcClientEntry)id_cache->context;
-      chu = silc_calloc(1, sizeof(*chu));
-      chu->client = client;
-      chu->mode = mode;
-      silc_list_add(channel->clients, chu);
-
-      silc_free(client_id);
-      id_cache = NULL;
+      if (!silc_client_on_channel(channel, client_entry)) {
+       chu = silc_calloc(1, sizeof(*chu));
+       chu->client = client_entry;
+       chu->mode = mode;
+       chu->channel = channel;
+       silc_hash_table_add(channel->user_list, client_entry, chu);
+       silc_hash_table_add(client_entry->channels, channel, chu);
+      }
     }
 
-    silc_buffer_pull(client_id_list, idp_len);
-    silc_buffer_pull(client_mode_list, 4);
+    silc_free(client_id);
+    silc_buffer_pull(&client_id_list, idp_len);
+    silc_buffer_pull(&client_mode_list, 4);
   }
 
   /* Query the client information from server if the list included clients
@@ -1763,9 +1695,12 @@ SILC_CLIENT_CMD_REPLY_FUNC(users)
     SilcBuffer res_cmd;
 
     /* Send the WHOIS command to server */
+    silc_client_command_register(cmd->client, SILC_COMMAND_WHOIS, NULL, NULL,
+                                silc_client_command_reply_whois_i, 0,
+                                ++conn->cmd_ident);
     res_cmd = silc_command_payload_encode(SILC_COMMAND_WHOIS,
                                          res_argc, res_argv, res_argv_lens,
-                                         res_argv_types, ++conn->cmd_ident);
+                                         res_argv_types, conn->cmd_ident);
     silc_client_packet_send(cmd->client, conn->sock, SILC_PACKET_COMMAND, 
                            NULL, 0, NULL, NULL, res_cmd->data, res_cmd->len,
                            TRUE);
@@ -1774,30 +1709,67 @@ SILC_CLIENT_CMD_REPLY_FUNC(users)
        command reply we will reprocess this command reply by re-calling this
        USERS command reply callback. */
     silc_client_command_pending(conn, SILC_COMMAND_WHOIS, conn->cmd_ident,
-                               NULL, silc_client_command_reply_users, cmd);
+                               get_clients, cmd);
 
     silc_buffer_free(res_cmd);
-    if (channel_id)
-      silc_free(channel_id);
-
+    silc_free(channel_id);
     silc_free(res_argv);
     silc_free(res_argv_lens);
     silc_free(res_argv_types);
-    return;
+    return 1;
   }
 
+  if (wait_res)
+    return 1;
+
+  silc_buffer_push(&client_id_list, (client_id_list.data - 
+                                    client_id_list.head));
+  silc_buffer_push(&client_mode_list, (client_mode_list.data - 
+                                      client_mode_list.head));
+
   /* Notify application */
-  COMMAND_REPLY((ARGS, channel, list_count, client_id_list, client_mode_list));
+  if (notify)
+    COMMAND_REPLY((SILC_ARGS, channel, list_count, &client_id_list, 
+                  &client_mode_list));
+
+ out:
+  silc_free(channel_id);
+  return 0;
+}
+
+/* Reply to USERS command. Received list of client ID's and theirs modes
+   on the channel we requested. */
+
+SILC_CLIENT_CMD_REPLY_FUNC(users)
+{
+  SilcClientCommandReplyContext cmd = (SilcClientCommandReplyContext)context;
+  SilcClientConnection conn = (SilcClientConnection)cmd->sock->user_data;
+  SilcClientCommandReplyContext r = (SilcClientCommandReplyContext)context2;
+
+  SILC_LOG_DEBUG(("Start"));
+
+  if (cmd->error != SILC_STATUS_OK) {
+    SAY(cmd->client, conn, SILC_CLIENT_MESSAGE_ERROR,
+       "%s", silc_get_status_message(cmd->error));
+    COMMAND_REPLY_ERROR;
+    goto out;
+  }
+
+  if (r && !silc_command_get_status(r->payload, NULL, &cmd->error)) {
+    SAY(cmd->client, conn, SILC_CLIENT_MESSAGE_ERROR,
+       "%s", silc_get_status_message(cmd->error));
+    COMMAND_REPLY_ERROR;
+    goto out;
+  }
+
+  if (silc_client_command_reply_users_save(cmd, cmd->status, TRUE,
+                                          silc_client_command_reply_users_cb,
+                                          silc_client_command_reply_users))
+    return;
 
  out:
   SILC_CLIENT_PENDING_EXEC(cmd, SILC_COMMAND_USERS);
-  SILC_CLIENT_PENDING_DESTRUCTOR(cmd, SILC_COMMAND_USERS);
   silc_client_command_reply_free(cmd);
-  silc_free(channel_id);
-  if (client_id_list)
-    silc_buffer_free(client_id_list);
-  if (client_mode_list)
-    silc_buffer_free(client_mode_list);
 }
 
 /* Received command reply to GETKEY command. WE've received the remote
@@ -1807,27 +1779,21 @@ SILC_CLIENT_CMD_REPLY_FUNC(getkey)
 {
   SilcClientCommandReplyContext cmd = (SilcClientCommandReplyContext)context;
   SilcClientConnection conn = (SilcClientConnection)cmd->sock->user_data;
-  SilcCommandStatus status;
-  SilcIDCacheEntry id_cache;
   SilcIDPayload idp = NULL;
   SilcClientID *client_id = NULL;
   SilcClientEntry client_entry;
   SilcServerID *server_id = NULL;
   SilcServerEntry server_entry;
-  SilcSKEPKType type;
-  unsigned char *tmp, *pk;
-  uint32 len;
-  uint16 pk_len;
+  unsigned char *tmp;
+  SilcUInt32 len;
   SilcIdType id_type;
   SilcPublicKey public_key = NULL;
 
   SILC_LOG_DEBUG(("Start"));
 
-  tmp = silc_argument_get_arg_type(cmd->args, 1, NULL);
-  SILC_GET16_MSB(status, tmp);
-  if (status != SILC_STATUS_OK) {
-    cmd->client->ops->say(cmd->client, conn, SILC_CLIENT_MESSAGE_ERROR,
-                         "%s", silc_client_command_status_message(status));
+  if (cmd->error != SILC_STATUS_OK) {
+    SAY(cmd->client, conn, SILC_CLIENT_MESSAGE_ERROR,
+       "%s", silc_get_status_message(cmd->error));
     COMMAND_REPLY_ERROR;
     goto out;
   }
@@ -1837,7 +1803,7 @@ SILC_CLIENT_CMD_REPLY_FUNC(getkey)
     COMMAND_REPLY_ERROR;
     goto out;
   }
-  idp = silc_id_payload_parse_data(tmp, len);
+  idp = silc_id_payload_parse(tmp, len);
   if (!idp) {
     COMMAND_REPLY_ERROR;
     goto out;
@@ -1846,57 +1812,45 @@ SILC_CLIENT_CMD_REPLY_FUNC(getkey)
   /* Get the public key payload */
   tmp = silc_argument_get_arg_type(cmd->args, 3, &len);
   if (tmp) {
-    /* Decode the public key */
-    SILC_GET16_MSB(pk_len, tmp);
-    SILC_GET16_MSB(type, tmp + 2);
-    pk = tmp + 4;
-    
-    if (type != SILC_SKE_PK_TYPE_SILC) {
-      COMMAND_REPLY_ERROR;
-      goto out;
-    }
-    
-    if (!silc_pkcs_public_key_decode(pk, pk_len, &public_key)) {
-      COMMAND_REPLY_ERROR;
-      goto out;
-    }
-  } 
+    if (!silc_pkcs_public_key_payload_decode(tmp, len, &public_key))
+      public_key = NULL;
+  }
    
   id_type = silc_id_payload_get_type(idp);
   if (id_type == SILC_ID_CLIENT) {
     /* Received client's public key */
     client_id = silc_id_payload_get_id(idp);
-    if (!silc_idcache_find_by_id_one_ext(conn->client_cache, 
-                                        (void *)client_id, 
-                                        NULL, NULL, 
-                                        silc_hash_client_id_compare, NULL,
-                                        &id_cache)) {
+    client_entry = silc_client_get_client_by_id(cmd->client, conn, client_id);
+    if (!client_entry) {
       COMMAND_REPLY_ERROR;
       goto out;
     }
 
-    client_entry = (SilcClientEntry)id_cache->context;
+    /* Save fingerprint */
+    if (!client_entry->fingerprint) {
+      client_entry->fingerprint = silc_calloc(20, sizeof(unsigned char));
+      client_entry->fingerprint_len = 20;
+      silc_hash_make(cmd->client->sha1hash, tmp + 4, len - 4,
+                    client_entry->fingerprint);
+    }
 
     /* Notify application */
-    COMMAND_REPLY((ARGS, id_type, client_entry, public_key));
+    COMMAND_REPLY((SILC_ARGS, id_type, client_entry, public_key));
   } else if (id_type == SILC_ID_SERVER) {
     /* Received server's public key */
     server_id = silc_id_payload_get_id(idp);
-    if (!silc_idcache_find_by_id_one(conn->server_cache, (void *)server_id,
-                                    &id_cache)) {
+    server_entry = silc_client_get_server_by_id(cmd->client, conn, server_id);
+    if (!server_entry) {
       COMMAND_REPLY_ERROR;
       goto out;
     }
 
-    server_entry = (SilcServerEntry)id_cache->context;
-
     /* Notify application */
-    COMMAND_REPLY((ARGS, id_type, server_entry, public_key));
+    COMMAND_REPLY((SILC_ARGS, id_type, server_entry, public_key));
   }
 
  out:
   SILC_CLIENT_PENDING_EXEC(cmd, SILC_COMMAND_GETKEY);
-  SILC_CLIENT_PENDING_DESTRUCTOR(cmd, SILC_COMMAND_GETKEY);
   if (idp)
     silc_id_payload_free(idp);
   if (public_key)
@@ -1905,3 +1859,269 @@ SILC_CLIENT_CMD_REPLY_FUNC(getkey)
   silc_free(server_id);
   silc_client_command_reply_free(cmd);
 }
+
+SILC_CLIENT_CMD_REPLY_FUNC(quit)
+{
+  silc_client_command_reply_free(context);
+}
+
+
+/******************************************************************************
+
+                      Internal command reply functions
+
+******************************************************************************/
+
+SILC_CLIENT_CMD_REPLY_FUNC(whois_i)
+{
+  SilcClientCommandReplyContext cmd = (SilcClientCommandReplyContext)context;
+  SilcClientConnection conn = (SilcClientConnection)cmd->sock->user_data;
+
+  COMMAND_CHECK_STATUS_I;
+
+  /* Save WHOIS info */
+  silc_client_command_reply_whois_save(cmd, cmd->status, FALSE);
+
+  /* Pending callbacks are not executed if this was an list entry */
+  if (cmd->status != SILC_STATUS_OK &&
+      cmd->status != SILC_STATUS_LIST_END) {
+    silc_client_command_reply_free(cmd);
+    return;
+  }
+
+ out:
+  SILC_CLIENT_PENDING_EXEC(cmd, SILC_COMMAND_WHOIS);
+
+ err:
+  /* If we received notify for invalid ID we'll remove the ID if we
+     have it cached. */
+  if (cmd->error == SILC_STATUS_ERR_NO_SUCH_CLIENT_ID) {
+    SilcClientEntry client_entry;
+    SilcUInt32 tmp_len;
+    unsigned char *tmp =
+      silc_argument_get_arg_type(silc_command_get_args(cmd->payload),
+                                2, &tmp_len);
+    if (tmp) {
+      SilcClientID *client_id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
+      if (client_id) {
+       client_entry = silc_client_get_client_by_id(cmd->client, conn,
+                                                   client_id);
+       if (client_entry)
+         silc_client_del_client(cmd->client, conn, client_entry);
+       silc_free(client_id);
+      }
+    }
+  }
+
+  /* Unregister this command reply */
+  silc_client_command_unregister(cmd->client, SILC_COMMAND_WHOIS,
+                                NULL, silc_client_command_reply_whois_i,
+                                cmd->ident);
+
+  silc_client_command_reply_free(cmd);
+}
+
+SILC_CLIENT_CMD_REPLY_FUNC(identify_i)
+{
+  SilcClientCommandReplyContext cmd = (SilcClientCommandReplyContext)context;
+  SilcClientConnection conn = (SilcClientConnection)cmd->sock->user_data;
+
+  COMMAND_CHECK_STATUS_I;
+
+  /* Save IDENTIFY info */
+  silc_client_command_reply_identify_save(cmd, cmd->status, FALSE);
+
+  /* Pending callbacks are not executed if this was an list entry */
+  if (cmd->status != SILC_STATUS_OK &&
+      cmd->status != SILC_STATUS_LIST_END) {
+    silc_client_command_reply_free(cmd);
+    return;
+  }
+
+ out:
+  SILC_CLIENT_PENDING_EXEC(cmd, SILC_COMMAND_IDENTIFY);
+
+ err:
+  /* If we received notify for invalid ID we'll remove the ID if we
+     have it cached. */
+  if (cmd->error == SILC_STATUS_ERR_NO_SUCH_CLIENT_ID) {
+    SilcClientEntry client_entry;
+    SilcUInt32 tmp_len;
+    unsigned char *tmp =
+      silc_argument_get_arg_type(silc_command_get_args(cmd->payload),
+                                2, &tmp_len);
+    if (tmp) {
+      SilcClientID *client_id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
+      if (client_id) {
+       client_entry = silc_client_get_client_by_id(cmd->client, conn,
+                                                   client_id);
+       if (client_entry)
+         silc_client_del_client(cmd->client, conn, client_entry);
+       silc_free(client_id);
+      }
+    }
+  }
+
+  /* Unregister this command reply */
+  silc_client_command_unregister(cmd->client, SILC_COMMAND_IDENTIFY,
+                                NULL, silc_client_command_reply_identify_i,
+                                cmd->ident);
+
+  silc_client_command_reply_free(cmd);
+}
+
+SILC_CLIENT_CMD_REPLY_FUNC(info_i)
+{
+  SilcClientCommandReplyContext cmd = (SilcClientCommandReplyContext)context;
+  SilcClientConnection conn = (SilcClientConnection)cmd->sock->user_data;
+  unsigned char *tmp;
+  SilcServerEntry server;
+  SilcServerID *server_id = NULL;
+  char *server_name, *server_info;
+  SilcUInt32 len;
+
+  COMMAND_CHECK_STATUS_I;
+
+  /* Get server ID */
+  tmp = silc_argument_get_arg_type(cmd->args, 2, &len);
+  if (!tmp)
+    goto out;
+
+  server_id = silc_id_payload_parse_id(tmp, len, NULL);
+  if (!server_id)
+    goto out;
+
+  /* Get server name */
+  server_name = silc_argument_get_arg_type(cmd->args, 3, NULL);
+  if (!server_name)
+    goto out;
+
+  /* Get server info */
+  server_info = silc_argument_get_arg_type(cmd->args, 4, NULL);
+  if (!server_info)
+    goto out;
+
+  /* See whether we have this server cached. If not create it. */
+  server = silc_client_get_server_by_id(cmd->client, conn, server_id);
+  if (!server) {
+    SILC_LOG_DEBUG(("New server entry"));
+    silc_client_add_server(cmd->client, conn, server_name, server_info,
+                          silc_id_dup(server_id, SILC_ID_SERVER));
+  }
+  
+ out:
+  SILC_CLIENT_PENDING_EXEC(cmd, SILC_COMMAND_INFO);
+  silc_free(server_id);
+ err:
+  silc_client_command_reply_free(cmd);
+}
+
+static void silc_client_command_reply_users_i_cb(SilcClient client,
+                                                SilcClientConnection conn,
+                                                SilcChannelEntry *channels,
+                                                SilcUInt32 channels_count,
+                                                void *context)
+{
+  if (!channels_count) {
+    SilcClientCommandReplyContext cmd = (SilcClientCommandReplyContext)context;
+    SilcClientConnection conn = (SilcClientConnection)cmd->sock->user_data;
+
+    cmd->status = cmd->error = SILC_STATUS_ERR_NO_SUCH_CHANNEL;
+    SAY(cmd->client, conn, SILC_CLIENT_MESSAGE_ERROR,
+       "%s", silc_get_status_message(cmd->error));
+    COMMAND_REPLY_ERROR;
+    SILC_CLIENT_PENDING_EXEC(cmd, SILC_COMMAND_USERS);
+    silc_client_command_reply_free(cmd);
+    return;
+  }
+
+  silc_client_command_reply_users_i(context, NULL);
+}
+
+SILC_CLIENT_CMD_REPLY_FUNC(users_i)
+{
+  SilcClientCommandReplyContext cmd = (SilcClientCommandReplyContext)context;
+
+  COMMAND_CHECK_STATUS_I;
+
+  /* Save USERS info */
+  if (silc_client_command_reply_users_save(
+                                   cmd, cmd->status, FALSE,
+                                   silc_client_command_reply_users_i_cb,
+                                   silc_client_command_reply_users_i))
+    return;
+
+ out:
+  SILC_CLIENT_PENDING_EXEC(cmd, SILC_COMMAND_USERS);
+
+ err:
+  /* Unregister this command reply */
+  silc_client_command_unregister(cmd->client, SILC_COMMAND_USERS,
+                                NULL, silc_client_command_reply_users_i,
+                                cmd->ident);
+
+  silc_client_command_reply_free(cmd);
+}
+
+/* Private range commands, specific to this implementation (and compatible
+   with SILC Server >= 0.9). */
+
+SILC_CLIENT_CMD_REPLY_FUNC(connect)
+{
+  SilcClientCommandReplyContext cmd = (SilcClientCommandReplyContext)context;
+  SilcClientConnection conn = (SilcClientConnection)cmd->sock->user_data;
+
+  if (cmd->error != SILC_STATUS_OK) {
+    SAY(cmd->client, conn, SILC_CLIENT_MESSAGE_ERROR,
+       "%s", silc_get_status_message(cmd->error));
+    COMMAND_REPLY_ERROR;
+    goto out;
+  }
+
+  /* Notify application */
+  COMMAND_REPLY((SILC_ARGS));
+
+ out:
+  SILC_CLIENT_PENDING_EXEC(cmd, SILC_COMMAND_PRIV_CONNECT);
+  silc_client_command_reply_free(cmd);
+}
+
+SILC_CLIENT_CMD_REPLY_FUNC(close)
+{
+  SilcClientCommandReplyContext cmd = (SilcClientCommandReplyContext)context;
+  SilcClientConnection conn = (SilcClientConnection)cmd->sock->user_data;
+
+  if (cmd->error != SILC_STATUS_OK) {
+    SAY(cmd->client, conn, SILC_CLIENT_MESSAGE_ERROR,
+       "%s", silc_get_status_message(cmd->error));
+    COMMAND_REPLY_ERROR;
+    goto out;
+  }
+
+  /* Notify application */
+  COMMAND_REPLY((SILC_ARGS));
+
+ out:
+  SILC_CLIENT_PENDING_EXEC(cmd, SILC_COMMAND_PRIV_CLOSE);
+  silc_client_command_reply_free(cmd);
+}
+SILC_CLIENT_CMD_REPLY_FUNC(shutdown)
+{
+  SilcClientCommandReplyContext cmd = (SilcClientCommandReplyContext)context;
+  SilcClientConnection conn = (SilcClientConnection)cmd->sock->user_data;
+
+  if (cmd->error != SILC_STATUS_OK) {
+    SAY(cmd->client, conn, SILC_CLIENT_MESSAGE_ERROR,
+       "%s", silc_get_status_message(cmd->error));
+    COMMAND_REPLY_ERROR;
+    goto out;
+  }
+
+  /* Notify application */
+  COMMAND_REPLY((SILC_ARGS));
+
+ out:
+  SILC_CLIENT_PENDING_EXEC(cmd, SILC_COMMAND_PRIV_SHUTDOWN);
+  silc_client_command_reply_free(cmd);
+}