updates.
[silc.git] / lib / silcclient / command.c
index f6dca33316e8e9cba3d61259cebb3fbef7e2a8f9..ffa55d5c744dce2481e7d41348d4c6268bcb1dc0 100644 (file)
@@ -48,8 +48,7 @@ SilcClientCommand silc_command_list[] =
   SILC_CLIENT_CMD(cmode, CMODE, "CMODE", SILC_CF_LAG | SILC_CF_REG, 4),
   SILC_CLIENT_CMD(cumode, CUMODE, "CUMODE", SILC_CF_LAG | SILC_CF_REG, 5),
   SILC_CLIENT_CMD(kick, KICK, "KICK", SILC_CF_LAG | SILC_CF_REG, 4),
-  SILC_CLIENT_CMD(restart, RESTART, "RESTART",
-                 SILC_CF_LAG | SILC_CF_REG | SILC_CF_OPER, 2),
+  SILC_CLIENT_CMD(ban, BAN, "BAN", SILC_CF_LAG | SILC_CF_REG, 3),
   SILC_CLIENT_CMD(close, CLOSE, "CLOSE",
                  SILC_CF_LAG | SILC_CF_REG | SILC_CF_OPER, 3),
   SILC_CLIENT_CMD(shutdown, SHUTDOWN, "SHUTDOWN",
@@ -58,6 +57,7 @@ SilcClientCommand silc_command_list[] =
                  SILC_CF_LAG | SILC_CF_REG | SILC_CF_SILC_OPER, 3),
   SILC_CLIENT_CMD(leave, LEAVE, "LEAVE", SILC_CF_LAG | SILC_CF_REG, 2),
   SILC_CLIENT_CMD(users, USERS, "USERS", SILC_CF_LAG | SILC_CF_REG, 2),
+  SILC_CLIENT_CMD(getkey, GETKEY, "GETKEY", SILC_CF_LAG | SILC_CF_REG, 2),
 
   { NULL, 0, NULL, 0, 0 },
 };
@@ -79,8 +79,8 @@ SilcClientCommand silc_command_list[] =
    encoded into correct form and in correct order. */
 
 void silc_client_send_command(SilcClient client, SilcClientConnection conn,
-                             SilcCommand command, unsigned short ident,
-                             unsigned int argc, ...)
+                             SilcCommand command, uint16 ident,
+                             uint32 argc, ...)
 {
   SilcBuffer packet;
   va_list ap;
@@ -117,7 +117,7 @@ SilcClientCommand *silc_client_command_find(const char *name)
 
 void silc_client_command_pending(SilcClientConnection conn,
                                 SilcCommand reply_cmd,
-                                unsigned short ident,
+                                uint16 ident,
                                 SilcClientPendingDestructor destructor,
                                 SilcCommandCb callback,
                                 void *context)
@@ -137,7 +137,7 @@ void silc_client_command_pending(SilcClientConnection conn,
 
 void silc_client_command_pending_del(SilcClientConnection conn,
                                     SilcCommand reply_cmd,
-                                    unsigned short ident)
+                                    uint16 ident)
 {
   SilcClientCommandPending *r;
 
@@ -156,7 +156,7 @@ void silc_client_command_pending_del(SilcClientConnection conn,
 int silc_client_command_pending_check(SilcClientConnection conn,
                                      SilcClientCommandReplyContext ctx,
                                      SilcCommand command, 
-                                     unsigned short ident)
+                                     uint16 ident)
 {
   SilcClientCommandPending *r;
 
@@ -221,7 +221,7 @@ static void silc_client_command_destructor(void *context)
 void silc_client_command_completion(SilcClient client,
                                    SilcClientConnection conn,
                                    SilcClientEntry clients,
-                                   unsigned int clients_count,
+                                   uint32 clients_count,
                                    void *context)
 {
 
@@ -407,8 +407,53 @@ SILC_CLIENT_CMD_FUNC(nick)
   silc_client_command_free(cmd);
 }
 
+/* Command LIST. Lists channels on the current server. */
+
 SILC_CLIENT_CMD_FUNC(list)
 {
+  SilcClientCommandContext cmd = (SilcClientCommandContext)context;
+  SilcClientConnection conn = cmd->conn;
+  SilcIDCacheEntry id_cache = NULL;
+  SilcChannelEntry channel;
+  SilcBuffer buffer, idp = NULL;
+  char *name;
+
+  if (!cmd->conn) {
+    SILC_NOT_CONNECTED(cmd->client, cmd->conn);
+    COMMAND_ERROR;
+    goto out;
+  }
+
+  if (cmd->argc == 2) {
+    name = cmd->argv[1];
+
+    /* Get the Channel ID of the channel */
+    if (silc_idcache_find_by_data_one(conn->channel_cache, name, &id_cache)) {
+      channel = (SilcChannelEntry)id_cache->context;
+      idp = silc_id_payload_encode(id_cache->id, SILC_ID_CHANNEL);
+    }
+  }
+
+  if (!idp)
+    buffer = silc_command_payload_encode_va(SILC_COMMAND_LIST, 
+                                           ++conn->cmd_ident, 0);
+  else
+    buffer = silc_command_payload_encode_va(SILC_COMMAND_LIST, 
+                                           ++conn->cmd_ident, 1,
+                                           1, idp->data, idp->len);
+
+  silc_client_packet_send(cmd->client, cmd->conn->sock,
+                         SILC_PACKET_COMMAND, NULL, 0, NULL, NULL,
+                         buffer->data, buffer->len, TRUE);
+  silc_buffer_free(buffer);
+  if (idp)
+    silc_buffer_free(idp);
+
+  /* Notify application */
+  COMMAND;
+
+ out:
+  silc_client_command_free(cmd);
 }
 
 /* Command TOPIC. Sets/shows topic on a channel. */
@@ -484,18 +529,20 @@ SILC_CLIENT_CMD_FUNC(topic)
   silc_client_command_free(cmd);
 }
 
-/* Command INVITE. Invites specific client to join a channel. */
+/* Command INVITE. Invites specific client to join a channel. This is
+   also used to mange the invite list of the channel. */
 
 SILC_CLIENT_CMD_FUNC(invite)
 {
   SilcClientCommandContext cmd = (SilcClientCommandContext)context;
   SilcClient client = cmd->client;
   SilcClientConnection conn = cmd->conn;
-  SilcClientEntry client_entry;
-  SilcChannelEntry channel_entry;
+  SilcClientEntry client_entry = NULL;
+  SilcChannelEntry channel;
   SilcBuffer buffer, clidp, chidp;
-  unsigned int num = 0;
-  char *nickname = NULL, *server = NULL;
+  uint32 num = 0, type = 0;
+  char *nickname = NULL, *server = NULL, *name;
+  char *invite = NULL;
 
   if (!cmd->conn) {
     SILC_NOT_CONNECTED(cmd->client, cmd->conn);
@@ -503,63 +550,104 @@ SILC_CLIENT_CMD_FUNC(invite)
     goto out;
   }
 
-  if (cmd->argc != 3) {
+  if (cmd->argc < 2) {
     cmd->client->ops->say(cmd->client, conn,
-                         "Usage: /INVITE <nickname>[@<server>] <channel>");
+                  "Usage: /INVITE <channel> [<nickname>[@server>]"
+                  "[+|-[<nickname>[@<server>[!<username>[@hostname>]]]]]");
     COMMAND_ERROR;
     goto out;
   }
 
-  /* Parse the typed nickname. */
-  if (!silc_parse_nickname(cmd->argv[1], &nickname, &server, &num)) {
-    cmd->client->ops->say(cmd->client, conn, "Bad nickname");
-    COMMAND_ERROR;
-    goto out;
-  }
+  if (cmd->argv[1][0] == '*') {
+    if (!conn->current_channel) {
+      cmd->client->ops->say(cmd->client, conn, "You are not on any channel");
+      COMMAND_ERROR;
+      goto out;
+    }
 
-  /* Find client entry */
-  client_entry = silc_idlist_get_client(client, conn, nickname, server, num,
-                                       TRUE);
-  if (!client_entry) {
-    if (nickname)
-      silc_free(nickname);
-    if (server)
-      silc_free(server);
+    channel = conn->current_channel;
+  } else {
+    name = cmd->argv[1];
 
-    /* Client entry not found, it was requested thus mark this to be
-       pending command. */
-    silc_client_command_pending(conn, SILC_COMMAND_IDENTIFY, conn->cmd_ident,
-                               silc_client_command_destructor,
-                               silc_client_command_invite, 
-                               silc_client_command_dup(cmd));
-    cmd->pending = 1;
-    return;
+    channel = silc_client_get_channel(cmd->client, conn, name);
+    if (!channel) {
+      cmd->client->ops->say(cmd->client, conn, "You are on that channel");
+      COMMAND_ERROR;
+      goto out;
+    }
   }
 
-  /* Find channel entry */
-  channel_entry = silc_client_get_channel(client, conn, cmd->argv[2]);
-  if (!channel_entry) {
-    cmd->client->ops->say(cmd->client, conn, "You are not on that channel");
-    COMMAND_ERROR;
-    goto out;
+  /* Parse the typed nickname. */
+  if (cmd->argc == 3) {
+    if (cmd->argv[2][0] != '+' && cmd->argv[2][0] != '-') {
+      if (!silc_parse_nickname(cmd->argv[2], &nickname, &server, &num)) {
+       cmd->client->ops->say(cmd->client, conn, "Bad nickname");
+       COMMAND_ERROR;
+       goto out;
+      }
+      
+      /* Find client entry */
+      client_entry = silc_idlist_get_client(client, conn, nickname, 
+                                           server, num, TRUE);
+      if (!client_entry) {
+       if (nickname)
+         silc_free(nickname);
+       if (server)
+         silc_free(server);
+       
+       if (cmd->pending) {
+         COMMAND_ERROR;
+         goto out;
+       }
+      
+       /* Client entry not found, it was requested thus mark this to be
+          pending command. */
+       silc_client_command_pending(conn, SILC_COMMAND_IDENTIFY, 
+                                   conn->cmd_ident,
+                                   silc_client_command_destructor,
+                                   silc_client_command_invite, 
+                                   silc_client_command_dup(cmd));
+       cmd->pending = 1;
+       return;
+      }
+      
+      cmd->client->ops->say(cmd->client, conn, 
+                           "Inviting %s to channel %s", cmd->argv[2], 
+                           channel->channel_name);
+    } else {
+      invite = cmd->argv[2];
+      invite++;
+      if (cmd->argv[2][0] == '+')
+       type = 3;
+      else
+       type = 4;
+    }
+  }
+
+  /* Send the command */
+  chidp = silc_id_payload_encode(channel->id, SILC_ID_CHANNEL);
+  if (client_entry) {
+    clidp = silc_id_payload_encode(client_entry->id, SILC_ID_CLIENT);
+    buffer = silc_command_payload_encode_va(SILC_COMMAND_INVITE, 
+                                           ++conn->cmd_ident, 3,
+                                           1, chidp->data, chidp->len,
+                                           2, clidp->data, clidp->len,
+                                           type, invite, invite ?
+                                           strlen(invite) : 0);
+    silc_buffer_free(clidp);
+  } else {
+    buffer = silc_command_payload_encode_va(SILC_COMMAND_INVITE, 
+                                           ++conn->cmd_ident, 2,
+                                           1, chidp->data, chidp->len,
+                                           type, invite, invite ?
+                                           strlen(invite) : 0);
   }
 
-  /* Send command */
-  clidp = silc_id_payload_encode(client_entry->id, SILC_ID_CLIENT);
-  chidp = silc_id_payload_encode(channel_entry->id, SILC_ID_CHANNEL);
-  buffer = silc_command_payload_encode_va(SILC_COMMAND_INVITE, 0, 2,
-                                         1, clidp->data, clidp->len,
-                                         2, chidp->data, chidp->len);
   silc_client_packet_send(cmd->client, conn->sock, SILC_PACKET_COMMAND, NULL, 
                          0, NULL, NULL, buffer->data, buffer->len, TRUE);
   silc_buffer_free(buffer);
-  silc_buffer_free(clidp);
   silc_buffer_free(chidp);
 
-  cmd->client->ops->say(cmd->client, conn, 
-                       "Inviting %s to channel %s", cmd->argv[1], 
-                       cmd->argv[2]);
-
   /* Notify application */
   COMMAND;
 
@@ -582,7 +670,7 @@ SILC_TASK_CALLBACK(silc_client_command_quit_cb)
 
   /* Close connection */
   q->client->ops->disconnect(q->client, q->conn);
-  silc_client_close_connection(q->client, q->conn->sock->user_data);
+  silc_client_close_connection(q->client, NULL, q->conn->sock->user_data);
 
   silc_free(q);
 }
@@ -638,7 +726,7 @@ SILC_CLIENT_CMD_FUNC(kill)
   SilcClientConnection conn = cmd->conn;
   SilcBuffer buffer, idp;
   SilcClientEntry target;
-  unsigned int num = 0;
+  uint32 num = 0;
   char *nickname = NULL, *server = NULL;
 
   if (!cmd->conn) {
@@ -669,6 +757,11 @@ SILC_CLIENT_CMD_FUNC(kill)
     if (server)
       silc_free(server);
 
+    if (cmd->pending) {
+      COMMAND_ERROR;
+      goto out;
+    }
+
     /* Client entry not found, it was requested thus mark this to be
        pending command. */
     silc_client_command_pending(conn, SILC_COMMAND_IDENTIFY, 
@@ -698,21 +791,6 @@ SILC_CLIENT_CMD_FUNC(kill)
   /* Notify application */
   COMMAND;
 
-  /* Remove the client entry to be killed */
-  silc_idcache_del_by_id(conn->client_cache, SILC_ID_CLIENT, 
-                        target->id);
-  if (target->nickname)
-    silc_free(target->nickname);
-  if (target->server)
-    silc_free(target->server);
-  if (target->id)
-    silc_free(target->id);
-  if (target->send_key)
-    silc_cipher_free(target->send_key);
-  if (target->receive_key)
-    silc_cipher_free(target->receive_key);
-  silc_free(target);
-
  out:
   if (nickname)
     silc_free(nickname);
@@ -729,7 +807,7 @@ SILC_CLIENT_CMD_FUNC(info)
   SilcClientCommandContext cmd = (SilcClientCommandContext)context;
   SilcClientConnection conn = cmd->conn;
   SilcBuffer buffer;
-  char *name;
+  char *name = NULL;
 
   if (!cmd->conn) {
     SILC_NOT_CONNECTED(cmd->client, cmd->conn);
@@ -737,17 +815,21 @@ SILC_CLIENT_CMD_FUNC(info)
     goto out;
   }
 
-  if (cmd->argc < 2)
-    name = strdup(conn->remote_host);
-  else
+  if (cmd->argc == 2)
     name = strdup(cmd->argv[1]);
 
   /* Send the command */
-  buffer = silc_command_payload_encode_va(SILC_COMMAND_INFO, 0, 1, 
-                                         1, name, strlen(name));
+  if (name)
+    buffer = silc_command_payload_encode_va(SILC_COMMAND_INFO, 0, 1, 
+                                           1, name, strlen(name));
+  else
+    buffer = silc_command_payload_encode(SILC_COMMAND_INFO, 0,
+                                        NULL, NULL, NULL, 0);
   silc_client_packet_send(cmd->client, conn->sock, SILC_PACKET_COMMAND, NULL, 
                          0, NULL, NULL, buffer->data, buffer->len, TRUE);
   silc_buffer_free(buffer);
+  if (name)
+    silc_free(name);
 
   /* Notify application */
   COMMAND;
@@ -906,17 +988,22 @@ SILC_CLIENT_CMD_FUNC(motd)
     goto out;
   }
 
-  if (cmd->argc < 1 || cmd->argc > 1) {
+  if (cmd->argc < 1 || cmd->argc > 2) {
     cmd->client->ops->say(cmd->client, conn,
-                         "Usage: /MOTD");
+                         "Usage: /MOTD [<server>]");
     COMMAND_ERROR;
     goto out;
   }
 
   /* Send TOPIC command to the server */
-  buffer = silc_command_payload_encode_va(SILC_COMMAND_MOTD, 0, 1, 
-                                         2, conn->remote_host, 
-                                         strlen(conn->remote_host));
+  if (cmd->argc == 1)
+    buffer = silc_command_payload_encode_va(SILC_COMMAND_MOTD, 0, 1, 
+                                           1, conn->remote_host, 
+                                           strlen(conn->remote_host));
+  else
+    buffer = silc_command_payload_encode_va(SILC_COMMAND_MOTD, 0, 1, 
+                                           1, cmd->argv[1], 
+                                           cmd->argv_lens[1]);
   silc_client_packet_send(cmd->client, conn->sock, SILC_PACKET_COMMAND, NULL, 
                          0, NULL, NULL, buffer->data, buffer->len, TRUE);
   silc_buffer_free(buffer);
@@ -928,11 +1015,97 @@ SILC_CLIENT_CMD_FUNC(motd)
   silc_client_command_free(cmd);
 }
 
-/* UMODE. Set user mode in SILC. */
+/* UMODE. Set/unset user mode in SILC. This is used mainly to unset the
+   modes as client cannot set itself server/router operator privileges. */
 
 SILC_CLIENT_CMD_FUNC(umode)
 {
+  SilcClientCommandContext cmd = (SilcClientCommandContext)context;
+  SilcClientConnection conn = cmd->conn;
+  SilcBuffer buffer, idp;
+  unsigned char *cp, modebuf[4];
+  uint32 mode, add, len;
+  int i;
 
+  if (!cmd->conn) {
+    SILC_NOT_CONNECTED(cmd->client, cmd->conn);
+    COMMAND_ERROR;
+    goto out;
+  }
+
+  if (cmd->argc < 2) {
+    cmd->client->ops->say(cmd->client, conn, 
+                 "Usage: /UMODE +|-<modes>");
+    COMMAND_ERROR;
+    goto out;
+  }
+
+  mode = conn->local_entry->mode;
+
+  /* Are we adding or removing mode */
+  if (cmd->argv[1][0] == '-')
+    add = FALSE;
+  else
+    add = TRUE;
+
+  /* Parse mode */
+  cp = cmd->argv[1] + 1;
+  len = strlen(cp);
+  for (i = 0; i < len; i++) {
+    switch(cp[i]) {
+    case 'a':
+      if (add) {
+       mode = 0;
+       mode |= SILC_UMODE_SERVER_OPERATOR;
+       mode |= SILC_UMODE_ROUTER_OPERATOR;
+      } else {
+       mode = SILC_UMODE_NONE;
+      }
+      break;
+    case 's':
+      if (add)
+       mode |= SILC_UMODE_SERVER_OPERATOR;
+      else
+       mode &= ~SILC_UMODE_SERVER_OPERATOR;
+      break;
+    case 'r':
+      if (add)
+       mode |= SILC_UMODE_ROUTER_OPERATOR;
+      else
+       mode &= ~SILC_UMODE_ROUTER_OPERATOR;
+      break;
+    case 'g':
+      if (add)
+       mode |= SILC_UMODE_GONE;
+      else
+       mode &= ~SILC_UMODE_GONE;
+      break;
+    default:
+      COMMAND_ERROR;
+      goto out;
+      break;
+    }
+  }
+
+  idp = silc_id_payload_encode(conn->local_id, SILC_ID_CLIENT);
+  SILC_PUT32_MSB(mode, modebuf);
+
+  /* Send the command packet. We support sending only one mode at once
+     that requires an argument. */
+  buffer = 
+    silc_command_payload_encode_va(SILC_COMMAND_UMODE, ++conn->cmd_ident, 2, 
+                                  1, idp->data, idp->len, 
+                                  2, modebuf, sizeof(modebuf));
+  silc_client_packet_send(cmd->client, conn->sock, SILC_PACKET_COMMAND, NULL, 
+                         0, NULL, NULL, buffer->data, buffer->len, TRUE);
+  silc_buffer_free(buffer);
+  silc_buffer_free(idp);
+
+  /* Notify application */
+  COMMAND;
+
+ out:
+  silc_client_command_free(cmd);
 }
 
 /* CMODE command. Sets channel mode. Modes that does not require any arguments
@@ -944,9 +1117,9 @@ SILC_CLIENT_CMD_FUNC(cmode)
   SilcClientCommandContext cmd = (SilcClientCommandContext)context;
   SilcClientConnection conn = cmd->conn;
   SilcChannelEntry channel;
-  SilcBuffer buffer, chidp;
+  SilcBuffer buffer, chidp, auth = NULL;
   unsigned char *name, *cp, modebuf[4], tmp[4], *arg = NULL;
-  unsigned int mode, add, type, len, arg_len = 0;
+  uint32 mode, add, type, len, arg_len = 0;
   int i;
 
   if (!cmd->conn) {
@@ -1050,34 +1223,46 @@ SILC_CLIENT_CMD_FUNC(cmode)
        mode &= ~SILC_CHANNEL_MODE_PASSPHRASE;
       }
       break;
-    case 'b':
+    case 'c':
       if (add) {
-       mode |= SILC_CHANNEL_MODE_BAN;
+       mode |= SILC_CHANNEL_MODE_CIPHER;
        type = 5;
        arg = cmd->argv[3];
        arg_len = cmd->argv_lens[3];
       } else {
-       mode &= ~SILC_CHANNEL_MODE_BAN;
+       mode &= ~SILC_CHANNEL_MODE_CIPHER;
       }
       break;
-    case 'I':
+    case 'h':
       if (add) {
-       mode |= SILC_CHANNEL_MODE_INVITE_LIST;
+       mode |= SILC_CHANNEL_MODE_HMAC;
        type = 6;
        arg = cmd->argv[3];
        arg_len = cmd->argv_lens[3];
       } else {
-       mode &= ~SILC_CHANNEL_MODE_INVITE_LIST;
+       mode &= ~SILC_CHANNEL_MODE_HMAC;
       }
       break;
-    case 'c':
+    case 'f':
       if (add) {
-       mode |= SILC_CHANNEL_MODE_CIPHER;
-       type = 8;
-       arg = cmd->argv[3];
-       arg_len = cmd->argv_lens[3];
+       mode |= SILC_CHANNEL_MODE_FOUNDER_AUTH;
+       type = 7;
+
+       if (!strcasecmp(cmd->argv[3], "-pubkey")) {
+         auth = silc_auth_public_key_auth_generate(cmd->client->public_key,
+                                                   cmd->client->private_key,
+                                                   conn->hash,
+                                                   conn->local_id,
+                                                   SILC_ID_CLIENT);
+       } else {
+         auth = silc_auth_payload_encode(SILC_AUTH_PASSWORD, NULL, 0,
+                                         cmd->argv[3], cmd->argv_lens[3]);
+       }
+
+       arg = auth->data;
+       arg_len = auth->len;
       } else {
-       mode &= ~SILC_CHANNEL_MODE_CIPHER;
+       mode &= ~SILC_CHANNEL_MODE_FOUNDER_AUTH;
       }
       break;
     default:
@@ -1114,6 +1299,8 @@ SILC_CLIENT_CMD_FUNC(cmode)
                          0, NULL, NULL, buffer->data, buffer->len, TRUE);
   silc_buffer_free(buffer);
   silc_buffer_free(chidp);
+  if (auth)
+    silc_buffer_free(auth);
 
   /* Notify application */
   COMMAND;
@@ -1131,11 +1318,11 @@ SILC_CLIENT_CMD_FUNC(cumode)
   SilcChannelEntry channel;
   SilcChannelUser chu;
   SilcClientEntry client_entry;
-  SilcBuffer buffer, clidp, chidp;
+  SilcBuffer buffer, clidp, chidp, auth = NULL;
   unsigned char *name, *cp, modebuf[4];
-  unsigned int mode = 0, add, len;
+  uint32 mode = 0, add, len;
   char *nickname = NULL, *server = NULL;
-  unsigned int num = 0;
+  uint32 num = 0;
   int i;
 
   if (!cmd->conn) {
@@ -1181,6 +1368,11 @@ SILC_CLIENT_CMD_FUNC(cumode)
   client_entry = silc_idlist_get_client(cmd->client, conn, 
                                        nickname, server, num, TRUE);
   if (!client_entry) {
+    if (cmd->pending) {
+      COMMAND_ERROR;
+      goto out;
+    }
+
     /* Client entry not found, it was requested thus mark this to be
        pending command. */
     silc_client_command_pending(conn, SILC_COMMAND_IDENTIFY, 
@@ -1219,10 +1411,23 @@ SILC_CLIENT_CMD_FUNC(cumode)
       }
       break;
     case 'f':
-      if (add)
+      if (add) {
+       if (cmd->argc == 5) {
+         if (!strcasecmp(cmd->argv[4], "-pubkey")) {
+         auth = silc_auth_public_key_auth_generate(cmd->client->public_key,
+                                                   cmd->client->private_key,
+                                                   conn->hash,
+                                                   conn->local_id,
+                                                   SILC_ID_CLIENT);
+         } else {
+           auth = silc_auth_payload_encode(SILC_AUTH_PASSWORD, NULL, 0,
+                                           cmd->argv[4], cmd->argv_lens[4]);
+         }
+       }
        mode |= SILC_CHANNEL_UMODE_CHANFO;
-      else
+      } else {
        mode &= ~SILC_CHANNEL_UMODE_CHANFO;
+      }
       break;
     case 'o':
       if (add)
@@ -1243,16 +1448,20 @@ SILC_CLIENT_CMD_FUNC(cumode)
 
   /* Send the command packet. We support sending only one mode at once
      that requires an argument. */
-  buffer = silc_command_payload_encode_va(SILC_COMMAND_CUMODE, 0, 3
+  buffer = silc_command_payload_encode_va(SILC_COMMAND_CUMODE, 0, 4
                                          1, chidp->data, chidp->len, 
                                          2, modebuf, 4,
-                                         3, clidp->data, clidp->len);
-
+                                         3, clidp->data, clidp->len,
+                                         4, auth ? auth->data : NULL, 
+                                         auth ? auth->len : 0);
+  
   silc_client_packet_send(cmd->client, conn->sock, SILC_PACKET_COMMAND, NULL, 
                          0, NULL, NULL, buffer->data, buffer->len, TRUE);
   silc_buffer_free(buffer);
   silc_buffer_free(chidp);
   silc_buffer_free(clidp);
+  if (auth)
+    silc_buffer_free(auth);
   
   /* Notify application */
   COMMAND;
@@ -1276,7 +1485,7 @@ SILC_CLIENT_CMD_FUNC(kick)
   SilcBuffer buffer, idp, idp2;
   SilcClientEntry target;
   char *name;
-  unsigned int num = 0;
+  uint32 num = 0;
   char *nickname = NULL, *server = NULL;
 
   if (!cmd->conn) {
@@ -1495,7 +1704,7 @@ SILC_CLIENT_CMD_FUNC(connect)
   SilcClientConnection conn = cmd->conn;
   SilcBuffer buffer;
   unsigned char port[4];
-  unsigned int tmp;
+  uint32 tmp;
 
   if (!cmd->conn) {
     SILC_NOT_CONNECTED(cmd->client, cmd->conn);
@@ -1535,8 +1744,81 @@ SILC_CLIENT_CMD_FUNC(connect)
   silc_client_command_free(cmd);
 }
 
-SILC_CLIENT_CMD_FUNC(restart)
+/* Command BAN. This is used to manage the ban list of the channel. */
+
+SILC_CLIENT_CMD_FUNC(ban)
 {
+  SilcClientCommandContext cmd = (SilcClientCommandContext)context;
+  SilcClientConnection conn = cmd->conn;
+  SilcChannelEntry channel;
+  SilcBuffer buffer, chidp;
+  int type = 0;
+  char *name, *ban = NULL;
+
+  if (!cmd->conn) {
+    SILC_NOT_CONNECTED(cmd->client, cmd->conn);
+    COMMAND_ERROR;
+    goto out;
+  }
+
+  if (cmd->argc < 2) {
+    cmd->client->ops->say(cmd->client, conn, 
+                  "Usage: /BAN <channel> "
+                  "[+|-[<nickname>[@<server>[!<username>[@hostname>]]]]]");
+    COMMAND_ERROR;
+    goto out;
+  }
+
+  if (cmd->argv[1][0] == '*') {
+    if (!conn->current_channel) {
+      cmd->client->ops->say(cmd->client, conn, "You are not on any channel");
+      COMMAND_ERROR;
+      goto out;
+    }
+
+    channel = conn->current_channel;
+  } else {
+    name = cmd->argv[1];
+
+    channel = silc_client_get_channel(cmd->client, conn, name);
+    if (!channel) {
+      cmd->client->ops->say(cmd->client, conn, "You are on that channel");
+      COMMAND_ERROR;
+      goto out;
+    }
+  }
+
+  if (cmd->argc == 3) {
+    if (cmd->argv[2][0] == '+')
+      type = 2;
+    else
+      type = 3;
+
+    ban = cmd->argv[2];
+    ban++;
+  }
+
+  chidp = silc_id_payload_encode(channel->id, SILC_ID_CHANNEL);
+
+  /* Send the command */
+  if (ban)
+    buffer = silc_command_payload_encode_va(SILC_COMMAND_BAN, 0, 2, 
+                                           1, chidp->data, chidp->len,
+                                           type, ban, strlen(ban));
+  else
+    buffer = silc_command_payload_encode_va(SILC_COMMAND_BAN, 0, 1, 
+                                           1, chidp->data, chidp->len);
+
+  silc_client_packet_send(cmd->client, conn->sock, SILC_PACKET_COMMAND, NULL, 
+                         0, NULL, NULL, buffer->data, buffer->len, TRUE);
+  silc_buffer_free(buffer);
+  silc_buffer_free(chidp);
+
+  /* Notify application */
+  COMMAND;
+
+ out:
+  silc_client_command_free(cmd);
 }
 
 /* CLOSE command. Close server connection to the remote server */
@@ -1547,7 +1829,7 @@ SILC_CLIENT_CMD_FUNC(close)
   SilcClientConnection conn = cmd->conn;
   SilcBuffer buffer;
   unsigned char port[4];
-  unsigned int tmp;
+  uint32 tmp;
 
   if (!cmd->conn) {
     SILC_NOT_CONNECTED(cmd->client, cmd->conn);
@@ -1609,7 +1891,7 @@ SILC_CLIENT_CMD_FUNC(shutdown)
  out:
   silc_client_command_free(cmd);
 }
+
 /* LEAVE command. Leaves a channel. Client removes itself from a channel. */
 
 SILC_CLIENT_CMD_FUNC(leave)
@@ -1697,8 +1979,7 @@ SILC_CLIENT_CMD_FUNC(users)
   SilcIDCacheEntry id_cache = NULL;
   SilcChannelEntry channel;
   SilcBuffer buffer, idp;
-  char *name, *line = NULL;
-  unsigned int line_len = 0;
+  char *name;
 
   if (!cmd->conn) {
     SILC_NOT_CONNECTED(cmd->client, cmd->conn);
@@ -1763,69 +2044,66 @@ SILC_CLIENT_CMD_FUNC(users)
     return;
   }
 
-  if (cmd->pending) {
-    /* Pending command. Now we've resolved the information from server and
-       we are ready to display the information on screen. */
-    int i;
-    SilcChannelUser chu;
-
-    cmd->client->ops->say(cmd->client, conn, "Users on %s", 
-                         channel->channel_name);
-
-    line = silc_calloc(4096, sizeof(*line));
-    line_len = 4096;
-    silc_list_start(channel->clients);
-    while ((chu = silc_list_get(channel->clients)) != SILC_LIST_END) {
-      SilcClientEntry e = chu->client;
-      char *m, tmp[80], len1;
-
-      memset(line, 0, sizeof(line_len));
-
-      if (strlen(e->nickname) + strlen(e->server) + 100 > line_len) {
-       silc_free(line);
-       line_len += strlen(e->nickname) + strlen(e->server) + 100;
-       line = silc_calloc(line_len, sizeof(*line));
-      }
-
-      memset(tmp, 0, sizeof(tmp));
-      m = silc_client_chumode_char(chu->mode);
-
-      strncat(line, " ", 1);
-      strncat(line, e->nickname, strlen(e->nickname));
-      strncat(line, e->server ? "@" : "", 1);
+  /* Notify application */
+  COMMAND;
 
-      len1 = 0;
-      if (e->server)
-       len1 = strlen(e->server);
-      strncat(line, e->server ? e->server : "", len1 > 30 ? 30 : len1);
+ out:
+  silc_client_command_free(cmd);
+}
 
-      len1 = strlen(line);
-      if (len1 >= 30) {
-       memset(&line[29], 0, len1 - 29);
-      } else {
-       for (i = 0; i < 30 - len1 - 1; i++)
-         strcat(line, " ");
-      }
+/* Command GETKEY. Used to fetch remote client's public key. */
 
-      strncat(line, "  H", 3);
-      strcat(tmp, m ? m : "");
-      strncat(line, tmp, strlen(tmp));
+SILC_CLIENT_CMD_FUNC(getkey)
+{
+  SilcClientCommandContext cmd = (SilcClientCommandContext)context;
+  SilcClientConnection conn = cmd->conn;
+  SilcClient client = cmd->client;
+  SilcClientEntry client_entry = NULL;
+  uint32 num = 0;
+  char *nickname = NULL, *server = NULL;
+  SilcBuffer idp, buffer;
 
-      if (strlen(tmp) < 5)
-       for (i = 0; i < 5 - strlen(tmp); i++)
-         strcat(line, " ");
+  if (!cmd->conn) {
+    SILC_NOT_CONNECTED(cmd->client, cmd->conn);
+    COMMAND_ERROR;
+    goto out;
+  }
 
-      strcat(line, e->username ? e->username : "");
+  if (cmd->argc < 2) {
+    client->ops->say(client, conn, "Usage: /GETKEY <nickname>");
+    COMMAND_ERROR;
+    goto out;
+  }
 
-      cmd->client->ops->say(cmd->client, conn, "%s", line);
+  /* Parse the typed nickname. */
+  if (!silc_parse_nickname(cmd->argv[1], &nickname, &server, &num)) {
+    client->ops->say(client, conn, "Bad nickname");
+    COMMAND_ERROR;
+    goto out;
+  }
 
-      if (m)
-       silc_free(m);
-    }
+  /* Find client entry */
+  client_entry = silc_idlist_get_client(client, conn, nickname, server, num,
+                                       TRUE);
+  if (!client_entry) {
+    /* Client entry not found, it was requested thus mark this to be
+       pending command. */
+    silc_client_command_pending(conn, SILC_COMMAND_IDENTIFY, 
+                               conn->cmd_ident,  
+                               silc_client_command_destructor,
+                               silc_client_command_getkey, 
+                               silc_client_command_dup(cmd));
+    cmd->pending = 1;
+    return;
   }
 
-  if (line)
-    silc_free(line);
+  idp = silc_id_payload_encode(client_entry->id, SILC_ID_CLIENT);
+  buffer = silc_command_payload_encode_va(SILC_COMMAND_GETKEY, 0, 1, 
+                                         1, idp->data, idp->len);
+  silc_client_packet_send(cmd->client, conn->sock, SILC_PACKET_COMMAND, NULL, 
+                         0, NULL, NULL, buffer->data, buffer->len, TRUE);
+  silc_buffer_free(buffer);
+  silc_buffer_free(idp);
 
   /* Notify application */
   COMMAND;