updates.
[silc.git] / apps / silcd / command_reply.c
index 2bd74472bc4b324be775cf0a5dd6760b920c7c02..ccb425f00d51b480495018e18a811caa1b1aecba 100644 (file)
@@ -2,9 +2,9 @@
 
   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
 #include "server_internal.h"
 #include "command_reply.h"
 
-/* All functions that call the COMMAND_CHECK_STATUS or the
-   COMMAND_CHECK_STATUS_LIST macros must have out: goto label. */
+/* All functions that call the COMMAND_CHECK_STATUS 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)                                                  \
-    goto out;                                                            \
-} 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)                                    \
-    goto out;                                                            \
+#define COMMAND_CHECK_STATUS                                   \
+do {                                                           \
+  SILC_LOG_DEBUG(("Start"));                                   \
+  if (!silc_command_get_status(cmd->payload, &status, &error)) \
+    goto out;                                                  \
 } while(0)
 
 /* Server command reply list. Not all commands have reply function as
@@ -55,6 +43,7 @@ SilcServerCommandReply silc_command_reply_list[] =
   SILC_SERVER_CMD_REPLY(info, INFO),
   SILC_SERVER_CMD_REPLY(motd, MOTD),
   SILC_SERVER_CMD_REPLY(join, JOIN),
+  SILC_SERVER_CMD_REPLY(stats, STATS),
   SILC_SERVER_CMD_REPLY(users, USERS),
   SILC_SERVER_CMD_REPLY(getkey, GETKEY),
   SILC_SERVER_CMD_REPLY(list, LIST),
@@ -72,7 +61,7 @@ void silc_server_command_reply_process(SilcServer server,
   SilcServerCommandReplyContext ctx;
   SilcCommandPayload payload;
   SilcCommand command;
-  uint16 ident;
+  SilcUInt16 ident;
 
   SILC_LOG_DEBUG(("Start"));
 
@@ -139,25 +128,21 @@ silc_server_command_reply_whois_save(SilcServerCommandReplyContext cmd)
   SilcClientEntry client;
   char global = FALSE;
   char *nick;
-  uint32 mode = 0, len, id_len, flen;
+  SilcUInt32 mode = 0, len, id_len, flen;
+  int expire = 0;
 
   id_data = silc_argument_get_arg_type(cmd->args, 2, &id_len);
   nickname = silc_argument_get_arg_type(cmd->args, 3, &len);
   username = silc_argument_get_arg_type(cmd->args, 4, &len);
   realname = silc_argument_get_arg_type(cmd->args, 5, &len);
-  if (!id_data || !nickname || !username || !realname) {
-    SILC_LOG_ERROR(("Incomplete WHOIS info: %s %s %s",
-                   nickname ? nickname : "",
-                   username ? username : "",
-                   realname ? realname : ""));
+  if (!id_data || !nickname || !username || !realname)
     return FALSE;
-  }
 
   tmp = silc_argument_get_arg_type(cmd->args, 7, &len);
   if (tmp)
     SILC_GET32_MSB(mode, tmp);
 
-  client_id = silc_id_payload_parse_id(id_data, id_len);
+  client_id = silc_id_payload_parse_id(id_data, id_len, NULL);
   if (!client_id)
     return FALSE;
 
@@ -188,7 +173,8 @@ silc_server_command_reply_whois_save(SilcServerCommandReplyContext cmd)
     client = silc_idlist_add_client(server->global_list, nick, 
                                    strdup(username), 
                                    strdup(realname), client_id, 
-                                   cmd->sock->user_data, NULL);
+                                   cmd->sock->user_data, NULL, 
+                                   time(NULL) + 300);
     if (!client) {
       SILC_LOG_ERROR(("Could not add new client to the ID Cache"));
       return FALSE;
@@ -224,10 +210,16 @@ silc_server_command_reply_whois_save(SilcServerCommandReplyContext cmd)
     client->data.status |= SILC_IDLIST_STATUS_RESOLVED;
     client->data.status &= ~SILC_IDLIST_STATUS_RESOLVING;
 
+    /* If client is global and is not on any channel then add that we'll
+       expire the entry after a while. */
+    if (global && !silc_hash_table_count(client->channels) &&
+       server->server_type == SILC_SERVER)
+      expire = time(NULL) + 300;
+
     /* Create new cache entry */
     silc_idcache_add(global ? server->global_list->clients :
                     server->local_list->clients, nick, client->id, 
-                    client, FALSE);
+                    client, expire, NULL); 
     silc_free(client_id);
   }
 
@@ -246,9 +238,10 @@ silc_server_command_reply_whois_save(SilcServerCommandReplyContext cmd)
 SILC_SERVER_CMD_REPLY_FUNC(whois)
 {
   SilcServerCommandReplyContext cmd = (SilcServerCommandReplyContext)context;
-  SilcCommandStatus status;
+  SilcServer server = cmd->server;
+  SilcCommandStatus status, error;
 
-  COMMAND_CHECK_STATUS_LIST;
+  COMMAND_CHECK_STATUS;
 
   if (!silc_server_command_reply_whois_save(cmd))
     goto out;
@@ -261,8 +254,31 @@ SILC_SERVER_CMD_REPLY_FUNC(whois)
   }
 
  out:
+  /* If we received notify for invalid ID we'll remove the ID if we
+     have it cached. */
+  if (error == SILC_STATUS_ERR_NO_SUCH_CLIENT_ID &&
+      cmd->sock->type == SILC_SOCKET_TYPE_ROUTER) {
+    SilcClientEntry client;
+    SilcUInt32 tmp_len;
+    unsigned char *tmp = silc_argument_get_arg_type(cmd->args, 2, &tmp_len);
+    if (tmp) {
+      SilcClientID *client_id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
+      if (client_id) {
+       SILC_LOG_DEBUG(("Received invalid client ID notification, deleting "
+                       "the entry from cache"));
+       client = silc_idlist_find_client_by_id(server->global_list, 
+                                              client_id, FALSE, NULL);
+       if (client) {
+         silc_server_remove_from_channels(server, NULL, client, TRUE, 
+                                          NULL, TRUE);
+         silc_idlist_del_client(server->global_list, client);
+       }
+       silc_free(client_id);
+      }
+    }
+  }
+
   SILC_SERVER_PENDING_EXEC(cmd, SILC_COMMAND_WHOIS);
-  SILC_SERVER_PENDING_DESTRUCTOR(cmd, SILC_COMMAND_WHOIS);
   silc_server_command_reply_free(cmd);
 }
 
@@ -272,7 +288,7 @@ static char
 silc_server_command_reply_whowas_save(SilcServerCommandReplyContext cmd)
 {
   SilcServer server = cmd->server;
-  uint32 len, id_len;
+  SilcUInt32 len, id_len;
   unsigned char *id_data;
   char *nickname, *username, *realname, *servername = NULL;
   SilcClientID *client_id;
@@ -289,7 +305,7 @@ silc_server_command_reply_whowas_save(SilcServerCommandReplyContext cmd)
 
   realname = silc_argument_get_arg_type(cmd->args, 5, &len);
 
-  client_id = silc_id_payload_parse_id(id_data, id_len);
+  client_id = silc_id_payload_parse_id(id_data, id_len, NULL);
   if (!client_id)
     return FALSE;
 
@@ -318,16 +334,14 @@ silc_server_command_reply_whowas_save(SilcServerCommandReplyContext cmd)
     client = silc_idlist_add_client(server->global_list, nick,
                                    strdup(username), strdup(realname), 
                                    silc_id_dup(client_id, SILC_ID_CLIENT), 
-                                   cmd->sock->user_data, NULL);
+                                   cmd->sock->user_data, NULL,
+                                   SILC_ID_CACHE_EXPIRE_DEF);
     if (!client) {
       SILC_LOG_ERROR(("Could not add new client to the ID Cache"));
       return FALSE;
     }
 
     client->data.status &= ~SILC_IDLIST_STATUS_REGISTERED; 
-    client = silc_idlist_find_client_by_id(server->global_list, 
-                                          client_id, TRUE, &cache);
-    cache->expire = SILC_ID_CACHE_EXPIRE_DEF;
     client->servername = servername;
   } else {
     /* We have the client already, update the data */
@@ -347,7 +361,7 @@ silc_server_command_reply_whowas_save(SilcServerCommandReplyContext cmd)
                                server->local_list->clients, client);
     silc_idcache_add(global ? server->global_list->clients :
                     server->local_list->clients, nick, client->id, 
-                    client, FALSE);
+                    client, 0, NULL);
   }
 
   silc_free(client_id);
@@ -361,9 +375,9 @@ silc_server_command_reply_whowas_save(SilcServerCommandReplyContext cmd)
 SILC_SERVER_CMD_REPLY_FUNC(whowas)
 {
   SilcServerCommandReplyContext cmd = (SilcServerCommandReplyContext)context;
-  SilcCommandStatus status;
+  SilcCommandStatus status, error;
 
-  COMMAND_CHECK_STATUS_LIST;
+  COMMAND_CHECK_STATUS;
 
   if (!silc_server_command_reply_whowas_save(cmd))
     goto out;
@@ -377,7 +391,6 @@ SILC_SERVER_CMD_REPLY_FUNC(whowas)
 
  out:
   SILC_SERVER_PENDING_EXEC(cmd, SILC_COMMAND_WHOWAS);
-  SILC_SERVER_PENDING_DESTRUCTOR(cmd, SILC_COMMAND_WHOWAS);
   silc_server_command_reply_free(cmd);
 }
 
@@ -387,7 +400,7 @@ static char
 silc_server_command_reply_identify_save(SilcServerCommandReplyContext cmd)
 {
   SilcServer server = cmd->server;
-  uint32 len, id_len;
+  SilcUInt32 len, id_len;
   unsigned char *id_data;
   char *name, *info;
   SilcClientID *client_id = NULL;
@@ -400,6 +413,7 @@ silc_server_command_reply_identify_save(SilcServerCommandReplyContext cmd)
   char *nick = NULL;
   SilcIDPayload idp = NULL;
   SilcIdType id_type;
+  int expire = 0;
 
   id_data = silc_argument_get_arg_type(cmd->args, 2, &id_len);
   if (!id_data)
@@ -443,7 +457,8 @@ silc_server_command_reply_identify_save(SilcServerCommandReplyContext cmd)
         global. */
       client = silc_idlist_add_client(server->global_list, nick, 
                                      info ? strdup(info) : NULL, NULL,
-                                     client_id, cmd->sock->user_data, NULL);
+                                     client_id, cmd->sock->user_data, NULL,
+                                     time(NULL) + 300);
       if (!client) {
        SILC_LOG_ERROR(("Could not add new client to the ID Cache"));
        goto error;
@@ -477,10 +492,16 @@ silc_server_command_reply_identify_save(SilcServerCommandReplyContext cmd)
       client->data.status &= ~SILC_IDLIST_STATUS_RESOLVING;
       
       if (name) {
+       /* If client is global and is not on any channel then add that we'll
+          expire the entry after a while. */
+       if (global && !silc_hash_table_count(client->channels) &&
+           server->server_type == SILC_SERVER)
+         expire = time(NULL) + 300;
+
        /* Add new cache entry */
        silc_idcache_add(global ? server->global_list->clients :
                         server->local_list->clients, nick, client->id, 
-                        client, FALSE);
+                        client, expire, NULL);
       }
 
       silc_free(client_id);
@@ -489,6 +510,9 @@ silc_server_command_reply_identify_save(SilcServerCommandReplyContext cmd)
     break;
 
   case SILC_ID_SERVER:
+    if (!name)
+      goto error;
+
     server_id = silc_id_payload_get_id(idp);
     if (!server_id)
       goto error;
@@ -524,17 +548,20 @@ silc_server_command_reply_identify_save(SilcServerCommandReplyContext cmd)
     break;
 
   case SILC_ID_CHANNEL:
+    if (!name)
+      goto error;
+
     channel_id = silc_id_payload_get_id(idp);
     if (!channel_id)
       goto error;
 
     SILC_LOG_DEBUG(("Received channel information"));
 
-    channel = silc_idlist_find_channel_by_id(server->local_list, 
-                                            channel_id, NULL);
+    channel = silc_idlist_find_channel_by_name(server->local_list, 
+                                              name, NULL);
     if (!channel)
-      channel = silc_idlist_find_channel_by_id(server->global_list, channel_id,
-                                              NULL);
+      channel = silc_idlist_find_channel_by_name(server->global_list, 
+                                                name, NULL);
     if (!channel) {
       /* If router did not find such Channel ID in its lists then this must
         be bogus channel or some router in the net is buggy. */
@@ -544,8 +571,7 @@ silc_server_command_reply_identify_save(SilcServerCommandReplyContext cmd)
       /* We don't have that server anywhere, add it. */
       channel = silc_idlist_add_channel(server->global_list, strdup(name),
                                        SILC_CHANNEL_MODE_NONE, channel_id, 
-                                       server->router, 
-                                       NULL, NULL);
+                                       server->router, NULL, NULL, 0);
       if (!channel) {
        silc_free(channel_id);
        goto error;
@@ -573,9 +599,10 @@ silc_server_command_reply_identify_save(SilcServerCommandReplyContext cmd)
 SILC_SERVER_CMD_REPLY_FUNC(identify)
 {
   SilcServerCommandReplyContext cmd = (SilcServerCommandReplyContext)context;
-  SilcCommandStatus status;
+  SilcServer server = cmd->server;
+  SilcCommandStatus status, error;
 
-  COMMAND_CHECK_STATUS_LIST;
+  COMMAND_CHECK_STATUS;
 
   if (!silc_server_command_reply_identify_save(cmd))
     goto out;
@@ -588,8 +615,31 @@ SILC_SERVER_CMD_REPLY_FUNC(identify)
   }
 
  out:
+  /* If we received notify for invalid ID we'll remove the ID if we
+     have it cached. */
+  if (error == SILC_STATUS_ERR_NO_SUCH_CLIENT_ID &&
+      cmd->sock->type == SILC_SOCKET_TYPE_ROUTER) {
+    SilcClientEntry client;
+    SilcUInt32 tmp_len;
+    unsigned char *tmp = silc_argument_get_arg_type(cmd->args, 2, &tmp_len);
+    if (tmp) {
+      SilcClientID *client_id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
+      if (client_id) {
+       SILC_LOG_DEBUG(("Received invalid client ID notification, deleting "
+                       "the entry from cache"));
+       client = silc_idlist_find_client_by_id(server->global_list, 
+                                              client_id, FALSE, NULL);
+       if (client) {
+         silc_server_remove_from_channels(server, NULL, client, TRUE, 
+                                          NULL, TRUE);
+         silc_idlist_del_client(server->global_list, client);
+       }
+       silc_free(client_id);
+      }
+    }
+  }
+
   SILC_SERVER_PENDING_EXEC(cmd, SILC_COMMAND_IDENTIFY);
-  SILC_SERVER_PENDING_DESTRUCTOR(cmd, SILC_COMMAND_IDENTIFY);
   silc_server_command_reply_free(cmd);
 }
 
@@ -599,10 +649,10 @@ SILC_SERVER_CMD_REPLY_FUNC(info)
 {
   SilcServerCommandReplyContext cmd = (SilcServerCommandReplyContext)context;
   SilcServer server = cmd->server;
-  SilcCommandStatus status;
+  SilcCommandStatus status, error;
   SilcServerEntry entry;
   SilcServerID *server_id;
-  uint32 tmp_len;
+  SilcUInt32 tmp_len;
   unsigned char *tmp, *name;
 
   COMMAND_CHECK_STATUS;
@@ -611,7 +661,7 @@ SILC_SERVER_CMD_REPLY_FUNC(info)
   tmp = silc_argument_get_arg_type(cmd->args, 2, &tmp_len);
   if (!tmp)
     goto out;
-  server_id = silc_id_payload_parse_id(tmp, tmp_len);
+  server_id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
   if (!server_id)
     goto out;
 
@@ -647,7 +697,6 @@ SILC_SERVER_CMD_REPLY_FUNC(info)
 
  out:
   SILC_SERVER_PENDING_EXEC(cmd, SILC_COMMAND_INFO);
-  SILC_SERVER_PENDING_DESTRUCTOR(cmd, SILC_COMMAND_INFO);
   silc_server_command_reply_free(cmd);
 }
 
@@ -657,10 +706,10 @@ SILC_SERVER_CMD_REPLY_FUNC(motd)
 {
   SilcServerCommandReplyContext cmd = (SilcServerCommandReplyContext)context;
   SilcServer server = cmd->server;
-  SilcCommandStatus status;
+  SilcCommandStatus status, error;
   SilcServerEntry entry = NULL;
   SilcServerID *server_id;
-  uint32 tmp_len;
+  SilcUInt32 tmp_len;
   unsigned char *tmp;
 
   COMMAND_CHECK_STATUS;
@@ -669,7 +718,7 @@ SILC_SERVER_CMD_REPLY_FUNC(motd)
   tmp = silc_argument_get_arg_type(cmd->args, 2, &tmp_len);
   if (!tmp)
     goto out;
-  server_id = silc_id_payload_parse_id(tmp, tmp_len);
+  server_id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
   if (!server_id)
     goto out;
 
@@ -691,7 +740,6 @@ SILC_SERVER_CMD_REPLY_FUNC(motd)
 
  out:
   SILC_SERVER_PENDING_EXEC(cmd, SILC_COMMAND_MOTD);
-  SILC_SERVER_PENDING_DESTRUCTOR(cmd, SILC_COMMAND_MOTD);
   silc_server_command_reply_free(cmd);
 
   if (entry)
@@ -707,15 +755,15 @@ SILC_SERVER_CMD_REPLY_FUNC(join)
   SilcServerCommandReplyContext cmd = (SilcServerCommandReplyContext)context;
   SilcServer server = cmd->server;
   SilcIDCacheEntry cache = NULL;
-  SilcCommandStatus status;
+  SilcCommandStatus status, error;
   SilcChannelID *id;
   SilcClientID *client_id = NULL;
   SilcChannelEntry entry;
   SilcHmac hmac = NULL;
-  uint32 id_len, len, list_count;
+  SilcUInt32 id_len, len, list_count;
   unsigned char *id_string;
   char *channel_name, *tmp;
-  uint32 mode, created;
+  SilcUInt32 mode, created;
   SilcBuffer keyp = NULL, client_id_list = NULL, client_mode_list = NULL;
 
   COMMAND_CHECK_STATUS;
@@ -734,7 +782,7 @@ SILC_SERVER_CMD_REPLY_FUNC(join)
   tmp = silc_argument_get_arg_type(cmd->args, 4, &len);
   if (!tmp)
     goto out;
-  client_id = silc_id_payload_parse_id(tmp, len);
+  client_id = silc_id_payload_parse_id(tmp, len, NULL);
   if (!client_id)
     goto out;
 
@@ -760,7 +808,8 @@ SILC_SERVER_CMD_REPLY_FUNC(join)
     silc_buffer_put(keyp, tmp, len);
   }
 
-  id = silc_id_payload_parse_id(id_string, id_len);
+  /* Parse the Channel ID */
+  id = silc_id_payload_parse_id(id_string, id_len, NULL);
   if (!id)
     goto out;
 
@@ -807,15 +856,15 @@ SILC_SERVER_CMD_REPLY_FUNC(join)
 
     /* If the channel is found from global list we must move it to the
        local list. */
-    entry = silc_idlist_find_channel_by_name(server->global_list, 
+    entry = silc_idlist_find_channel_by_name(server->global_list,
                                             channel_name, &cache);
     if (entry)
       silc_idlist_del_channel(server->global_list, entry);
 
     /* Add the channel to our local list. */
-    entry = silc_idlist_add_channel(server->local_list, strdup(channel_name), 
-                                   SILC_CHANNEL_MODE_NONE, id, 
-                                   server->router, NULL, hmac);
+    entry = silc_idlist_add_channel(server->local_list, strdup(channel_name),
+                                   SILC_CHANNEL_MODE_NONE, id,
+                                   server->router, NULL, hmac, 0);
     if (!entry) {
       silc_free(id);
       goto out;
@@ -823,19 +872,19 @@ SILC_SERVER_CMD_REPLY_FUNC(join)
     server->stat.my_channels++;
   } else {
     /* The entry exists. */
-    silc_free(cache->id);
-    entry->id = id;
-    cache->id = entry->id;
+
+    /* If ID has changed, then update it to the cache too. */
+    if (!SILC_ID_CHANNEL_COMPARE(entry->id, id))
+      silc_idlist_replace_channel_id(server->local_list, entry->id, id);
+
     entry->disabled = FALSE;
 
     /* Remove the founder auth data if the mode is not set but we have
        them in the entry */
     if (!(mode & SILC_CHANNEL_MODE_FOUNDER_AUTH) && entry->founder_key) {
       silc_pkcs_public_key_free(entry->founder_key);
-      if (entry->founder_passwd) {
-       silc_free(entry->founder_passwd);
-       entry->founder_passwd = NULL;
-      }
+      silc_free(entry->founder_passwd);
+      entry->founder_passwd = NULL;
     }
   }
 
@@ -847,26 +896,21 @@ SILC_SERVER_CMD_REPLY_FUNC(join)
   /* Get the ban list */
   tmp = silc_argument_get_arg_type(cmd->args, 8, &len);
   if (tmp) {
-    if (entry->ban_list)
-      silc_free(entry->ban_list);
-    entry->ban_list = silc_calloc(len, sizeof(*entry->ban_list));
-    memcpy(entry->ban_list, tmp, len);
+    silc_free(entry->ban_list);
+    entry->ban_list = silc_memdup(tmp, len);
   }
 
   /* Get the invite list */
   tmp = silc_argument_get_arg_type(cmd->args, 9, &len);
   if (tmp) {
-    if (entry->invite_list)
-      silc_free(entry->invite_list);
-    entry->invite_list = silc_calloc(len, sizeof(*entry->invite_list));
-    memcpy(entry->invite_list, tmp, len);
+    silc_free(entry->invite_list);
+    entry->invite_list = silc_memdup(tmp, len);
   }
 
   /* Get the topic */
   tmp = silc_argument_get_arg_type(cmd->args, 10, &len);
   if (tmp) {
-    if (entry->topic)
-      silc_free(entry->topic);
+    silc_free(entry->topic);
     entry->topic = strdup(tmp);
   }
 
@@ -885,10 +929,11 @@ SILC_SERVER_CMD_REPLY_FUNC(join)
   entry->mode = mode;
 
   /* Save channel key */
-  if (!(entry->mode & SILC_CHANNEL_MODE_PRIVKEY))
-    silc_server_save_channel_key(server, keyp, entry);
-  if (keyp)
+  if (keyp) {
+    if (!(entry->mode & SILC_CHANNEL_MODE_PRIVKEY))
+      silc_server_save_channel_key(server, keyp, entry);
     silc_buffer_free(keyp);
+  }
 
   /* Save the users to the channel */
   silc_server_save_users_on_channel(server, cmd->sock, entry, 
@@ -897,7 +942,6 @@ SILC_SERVER_CMD_REPLY_FUNC(join)
 
  out:
   SILC_SERVER_PENDING_EXEC(cmd, SILC_COMMAND_JOIN);
-  SILC_SERVER_PENDING_DESTRUCTOR(cmd, SILC_COMMAND_JOIN);
   silc_free(client_id);
   silc_server_command_reply_free(cmd);
 
@@ -907,18 +951,58 @@ SILC_SERVER_CMD_REPLY_FUNC(join)
     silc_buffer_free(client_mode_list);
 }
 
+/* Received reply to STATS command.  */
+
+SILC_SERVER_CMD_REPLY_FUNC(stats)
+{
+  SilcServerCommandReplyContext cmd = (SilcServerCommandReplyContext)context;
+  SilcServer server = cmd->server;
+  SilcCommandStatus status, error;
+  unsigned char *tmp;
+  SilcUInt32 tmp_len;
+  SilcBufferStruct buf;
+
+  COMMAND_CHECK_STATUS;
+
+  /* Get statistics structure */
+  tmp = silc_argument_get_arg_type(cmd->args, 3, &tmp_len);
+  if (server->server_type == SILC_SERVER && tmp) {
+    silc_buffer_set(&buf, tmp, tmp_len);
+    silc_buffer_unformat(&buf,
+                        SILC_STR_UI_INT(NULL),
+                        SILC_STR_UI_INT(NULL),
+                        SILC_STR_UI_INT(NULL),
+                        SILC_STR_UI_INT(NULL),
+                        SILC_STR_UI_INT(NULL),
+                        SILC_STR_UI_INT(NULL),
+                        SILC_STR_UI_INT(&server->stat.cell_clients),
+                        SILC_STR_UI_INT(&server->stat.cell_channels),
+                        SILC_STR_UI_INT(&server->stat.cell_servers),
+                        SILC_STR_UI_INT(&server->stat.clients),
+                        SILC_STR_UI_INT(&server->stat.channels),
+                        SILC_STR_UI_INT(&server->stat.servers),
+                        SILC_STR_UI_INT(&server->stat.routers),
+                        SILC_STR_UI_INT(&server->stat.server_ops),
+                        SILC_STR_UI_INT(&server->stat.router_ops),
+                        SILC_STR_END);
+  }
+
+ out:
+  SILC_SERVER_PENDING_EXEC(cmd, SILC_COMMAND_USERS);
+}
+
 SILC_SERVER_CMD_REPLY_FUNC(users)
 {
   SilcServerCommandReplyContext cmd = (SilcServerCommandReplyContext)context;
   SilcServer server = cmd->server;
-  SilcCommandStatus status;
+  SilcCommandStatus status, error;
   SilcChannelEntry channel;
   SilcChannelID *channel_id = NULL;
   SilcBuffer client_id_list;
   SilcBuffer client_mode_list;
   unsigned char *tmp;
-  uint32 tmp_len;
-  uint32 list_count;
+  SilcUInt32 tmp_len;
+  SilcUInt32 list_count;
 
   COMMAND_CHECK_STATUS;
 
@@ -926,7 +1010,7 @@ SILC_SERVER_CMD_REPLY_FUNC(users)
   tmp = silc_argument_get_arg_type(cmd->args, 2, &tmp_len);
   if (!tmp)
     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)
     goto out;
 
@@ -953,7 +1037,7 @@ SILC_SERVER_CMD_REPLY_FUNC(users)
         USERS command reply callback. */
       silc_server_command_pending(server, SILC_COMMAND_IDENTIFY, 
                                  server->cmd_ident,
-                                 NULL, silc_server_command_reply_users, cmd);
+                                 silc_server_command_reply_users, cmd);
       return;
     }
   }
@@ -992,7 +1076,6 @@ SILC_SERVER_CMD_REPLY_FUNC(users)
 
  out:
   SILC_SERVER_PENDING_EXEC(cmd, SILC_COMMAND_USERS);
-  SILC_SERVER_PENDING_DESTRUCTOR(cmd, SILC_COMMAND_USERS);
   silc_free(channel_id);
   silc_server_command_reply_free(cmd);
 }
@@ -1001,15 +1084,15 @@ SILC_SERVER_CMD_REPLY_FUNC(getkey)
 {
   SilcServerCommandReplyContext cmd = (SilcServerCommandReplyContext)context;
   SilcServer server = cmd->server;
-  SilcCommandStatus status;
+  SilcCommandStatus status, error;
   SilcClientEntry client = NULL;
   SilcServerEntry server_entry = NULL;
   SilcClientID *client_id = NULL;
   SilcServerID *server_id = NULL;
   SilcSKEPKType type;
   unsigned char *tmp, *pk;
-  uint32 len;
-  uint16 pk_len;
+  SilcUInt32 len;
+  SilcUInt16 pk_len;
   SilcIDPayload idp = NULL;
   SilcIdType id_type;
   SilcPublicKey public_key = NULL;
@@ -1054,6 +1137,7 @@ SILC_SERVER_CMD_REPLY_FUNC(getkey)
     }
 
     client->data.public_key = public_key;
+    public_key = NULL;
   } else if (id_type == SILC_ID_SERVER) {
     server_id = silc_id_payload_get_id(idp);
 
@@ -1067,13 +1151,13 @@ SILC_SERVER_CMD_REPLY_FUNC(getkey)
     }
 
     server_entry->data.public_key = public_key;
+    public_key = NULL;
   } else {
     goto out;
   }
 
  out:
   SILC_SERVER_PENDING_EXEC(cmd, SILC_COMMAND_GETKEY);
-  SILC_SERVER_PENDING_DESTRUCTOR(cmd, SILC_COMMAND_GETKEY);
   if (idp)
     silc_id_payload_free(idp);
   silc_free(client_id);
@@ -1087,17 +1171,19 @@ SILC_SERVER_CMD_REPLY_FUNC(list)
 {
   SilcServerCommandReplyContext cmd = (SilcServerCommandReplyContext)context;
   SilcServer server = cmd->server;
-  SilcCommandStatus status;
+  SilcCommandStatus status, error;
   SilcChannelID *channel_id = NULL;
   SilcChannelEntry channel;
-  uint32 len;
+  SilcIDCacheEntry cache;
+  SilcUInt32 len;
   unsigned char *tmp, *name, *topic;
-  uint32 usercount = 0;
+  SilcUInt32 usercount = 0;
+  bool global_list = FALSE;
 
-  COMMAND_CHECK_STATUS_LIST;
+  COMMAND_CHECK_STATUS;
 
   tmp = silc_argument_get_arg_type(cmd->args, 2, &len);
-  channel_id = silc_id_payload_parse_id(tmp, len);
+  channel_id = silc_id_payload_parse_id(tmp, len, NULL);
   if (!channel_id)
     goto out;
 
@@ -1108,26 +1194,34 @@ SILC_SERVER_CMD_REPLY_FUNC(list)
     SILC_GET32_MSB(usercount, tmp);
 
   /* Add the channel entry if we do not have it already */
-  channel = silc_idlist_find_channel_by_id(server->local_list, 
-                                          channel_id, NULL);
-  if (!channel)
-    channel = silc_idlist_find_channel_by_id(server->global_list, 
-                                            channel_id, NULL);
+  channel = silc_idlist_find_channel_by_name(server->local_list, 
+                                            name, &cache);
+  if (!channel) {
+    channel = silc_idlist_find_channel_by_name(server->global_list, 
+                                              name, &cache);
+    global_list = TRUE;
+  }
   if (!channel) {
-    /* If router did not find such Channel ID in its lists then this must
+    /* If router did not find such channel in its lists then this must
        be bogus channel or some router in the net is buggy. */
     if (server->server_type != SILC_SERVER)
       goto out;
     
     channel = silc_idlist_add_channel(server->global_list, strdup(name),
                                      SILC_CHANNEL_MODE_NONE, channel_id, 
-                                     server->router, 
-                                     NULL, NULL);
+                                     server->router, NULL, NULL, 
+                                     time(NULL) + 60);
     if (!channel)
       goto out;
     channel_id = NULL;
+  } else {
+    /* Found, update expiry */
+    if (global_list && server->server_type == SILC_SERVER)
+      cache->expire = time(NULL) + 60;
   }
 
+  channel->user_count = usercount;
+
   if (topic) {
     silc_free(channel->topic);
     channel->topic = strdup(topic);
@@ -1140,9 +1234,12 @@ SILC_SERVER_CMD_REPLY_FUNC(list)
     return;
   }
 
+  /* Now purge all old entries from the global list, otherwise we'll might
+     have non-existent entries for long periods of time in the cache. */
+  silc_idcache_purge(server->global_list->channels);
+
  out:
   SILC_SERVER_PENDING_EXEC(cmd, SILC_COMMAND_LIST);
-  SILC_SERVER_PENDING_DESTRUCTOR(cmd, SILC_COMMAND_LIST);
   silc_free(channel_id);
   silc_server_command_reply_free(cmd);
 }