updates.
[silc.git] / apps / silcd / command.c
index 6ed2dc5ea6fce902900669b1e29c0a4ca1edad0f..cb487e23880534f81c4212f61c830107fb8efe8c 100644 (file)
@@ -304,7 +304,6 @@ silc_server_command_dup(SilcServerCommandContext ctx)
 bool silc_server_command_pending(SilcServer server,
                                 SilcCommand reply_cmd,
                                 uint16 ident,
-                                SilcServerPendingDestructor destructor,
                                 SilcCommandCb callback,
                                 void *context)
 {
@@ -325,7 +324,6 @@ bool silc_server_command_pending(SilcServer server,
   reply->ident = ident;
   reply->context = context;
   reply->callback = callback;
-  reply->destructor = destructor;
   silc_dlist_add(server->pending_commands, reply);
 
   return TRUE;
@@ -369,7 +367,6 @@ silc_server_command_pending_check(SilcServer server,
       callbacks = silc_realloc(callbacks, sizeof(*callbacks) * (i + 1));
       callbacks[i].context = r->context;
       callbacks[i].callback = r->callback;
-      callbacks[i].destructor = r->destructor;
       ctx->ident = ident;
       i++;
     }
@@ -379,14 +376,6 @@ silc_server_command_pending_check(SilcServer server,
   return callbacks;
 }
 
-/* Destructor function for pending callbacks. This is called when using
-   pending commands to free the context given for the pending command. */
-
-static void silc_server_command_destructor(void *context)
-{
-  silc_server_command_free((SilcServerCommandContext)context);
-}
-
 /* Sends simple status message as command reply packet */
 
 static void 
@@ -593,7 +582,6 @@ silc_server_command_whois_check(SilcServerCommandContext cmd,
         to the command reply and we're done with this one. */
       silc_server_command_pending(server, SILC_COMMAND_NONE, 
                                  entry->resolve_cmd_ident,
-                                 silc_server_command_destructor,
                                  silc_server_command_whois,
                                  silc_server_command_dup(cmd));
       no_res = FALSE;
@@ -676,7 +664,6 @@ silc_server_command_whois_check(SilcServerCommandContext cmd,
     /* Reprocess this packet after received reply */
     silc_server_command_pending(server, SILC_COMMAND_WHOIS, 
                                r->ident,
-                               silc_server_command_destructor,
                                silc_server_command_whois,
                                silc_server_command_dup(cmd));
     cmd->pending = TRUE;
@@ -750,17 +737,6 @@ silc_server_command_whois_send_reply(SilcServerCommandContext cmd,
     if (!entry)
       continue;
 
-#if 1
-    /* XXX REMOVE */
-    /* Sanity check, however these should never fail. However, as
-       this sanity check has been added here they have failed. */
-    if (!entry->nickname || !entry->username || !entry->userinfo) {
-      SILC_LOG_ERROR(("********* if (!entry->nickname || !entry->username "
-                     "|| !entry->userinfo) triggered: should have not!"));
-      continue;
-    }
-#endif
-
     if (k >= 1)
       status = SILC_STATUS_LIST_ITEM;
     if (valid_count > 1 && k == valid_count - 1)
@@ -857,7 +833,6 @@ silc_server_command_whois_send_router(SilcServerCommandContext cmd)
   /* Reprocess this packet after received reply from router */
   silc_server_command_pending(server, SILC_COMMAND_WHOIS, 
                              silc_command_get_ident(cmd->payload),
-                             silc_server_command_destructor,
                              silc_server_command_whois,
                              silc_server_command_dup(cmd));
   cmd->pending = TRUE;
@@ -1007,9 +982,7 @@ SILC_SERVER_CMD_FUNC(whois)
   SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_WHOIS, cmd, 1, 3328);
 
   ret = silc_server_command_whois_process(cmd);
-
-  if (!ret)
-    silc_server_command_free(cmd);
+  silc_server_command_free(cmd);
 }
 
 /******************************************************************************
@@ -1078,7 +1051,6 @@ silc_server_command_whowas_check(SilcServerCommandContext cmd,
       /* Reprocess this packet after received reply */
       silc_server_command_pending(server, SILC_COMMAND_WHOWAS, 
                                  silc_command_get_ident(cmd->payload),
-                                 silc_server_command_destructor,
                                  silc_server_command_whowas, 
                                  silc_server_command_dup(cmd));
       cmd->pending = TRUE;
@@ -1131,25 +1103,6 @@ silc_server_command_whowas_send_reply(SilcServerCommandContext cmd,
     if (clients_count > 1 && i == clients_count - 1)
       status = SILC_STATUS_LIST_END;
 
-    /* Sanity check, however these should never fail. However, as
-       this sanity check has been added here they have failed. */
-    if (!entry->nickname || !entry->username || !entry->userinfo) {
-      SILC_LOG_ERROR(("********* if (!entry->nickname || !entry->username "
-                     "|| !entry->userinfo) triggered: should have not!"));
-      continue;
-    }
-
-#if 1
-    /* XXX REMOVE */
-    /* Sanity check, however these should never fail. However, as
-       this sanity check has been added here they have failed. */
-    if (!entry->nickname || !entry->username) {
-      SILC_LOG_ERROR(("********* if (!entry->nickname || !entry->username) "
-                     "triggered: should have not!"));
-      continue;
-    }
-#endif
-      
     /* Send WHOWAS reply */
     idp = silc_id_payload_encode(entry->id, SILC_ID_CLIENT);
     tmp = silc_argument_get_first_arg(cmd->args, NULL);
@@ -1232,7 +1185,6 @@ silc_server_command_whowas_process(SilcServerCommandContext cmd)
     /* Reprocess this packet after received reply from router */
     silc_server_command_pending(server, SILC_COMMAND_WHOWAS, 
                                silc_command_get_ident(cmd->payload),
-                               silc_server_command_destructor,
                                silc_server_command_whowas,
                                silc_server_command_dup(cmd));
     cmd->pending = TRUE;
@@ -1294,7 +1246,6 @@ silc_server_command_whowas_process(SilcServerCommandContext cmd)
   silc_free(clients);
   silc_free(nick);
   silc_free(server_name);
-
   return ret;
 }
 
@@ -1308,9 +1259,7 @@ SILC_SERVER_CMD_FUNC(whowas)
   SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_WHOWAS, cmd, 1, 2);
 
   ret = silc_server_command_whowas_process(cmd);
-
-  if (!ret)
-    silc_server_command_free(cmd);
+  silc_server_command_free(cmd);
 }
 
 /******************************************************************************
@@ -1339,7 +1288,6 @@ silc_server_command_identify_send_router(SilcServerCommandContext cmd)
   /* Reprocess this packet after received reply from router */
   silc_server_command_pending(server, SILC_COMMAND_IDENTIFY, 
                              silc_command_get_ident(cmd->payload),
-                             silc_server_command_destructor,
                              silc_server_command_identify,
                              silc_server_command_dup(cmd));
   cmd->pending = TRUE;
@@ -1657,7 +1605,6 @@ silc_server_command_identify_check_client(SilcServerCommandContext cmd,
         to the command reply and we're done with this one. */
       silc_server_command_pending(server, SILC_COMMAND_NONE, 
                                  entry->resolve_cmd_ident,
-                                 silc_server_command_destructor,
                                  silc_server_command_identify,
                                  silc_server_command_dup(cmd));
       no_res = FALSE;
@@ -1740,7 +1687,6 @@ silc_server_command_identify_check_client(SilcServerCommandContext cmd,
     /* Reprocess this packet after received reply */
     silc_server_command_pending(server, SILC_COMMAND_WHOIS, 
                                r->ident,
-                               silc_server_command_destructor,
                                silc_server_command_identify,
                                silc_server_command_dup(cmd));
     cmd->pending = TRUE;
@@ -2002,28 +1948,7 @@ SILC_SERVER_CMD_FUNC(identify)
   SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_IDENTIFY, cmd, 1, 3328);
 
   ret = silc_server_command_identify_process(cmd);
-
-  if (!ret)
-    silc_server_command_free(cmd);
-}
-
-/* Checks string for bad characters and returns TRUE if they are found. */
-
-static int silc_server_command_bad_chars(char *nick)
-{
-  int i;
-
-  for (i = 0; i < strlen(nick); i++) {
-    if (!isascii(nick[i]))
-      return TRUE;
-    if (nick[i] <= 32) return TRUE;
-    if (nick[i] == ' ') return TRUE;
-    if (nick[i] == '*') return TRUE;
-    if (nick[i] == '?') return TRUE;
-    if (nick[i] == ',') return TRUE;
-  }
-
-  return FALSE;
+  silc_server_command_free(cmd);
 }
 
 /* Server side of command NICK. Sets nickname for user. Setting
@@ -2037,6 +1962,7 @@ SILC_SERVER_CMD_FUNC(nick)
   SilcServer server = cmd->server;
   SilcBuffer packet, nidp, oidp = NULL;
   SilcClientID *new_id;
+  uint32 nick_len;
   char *nick;
   uint16 ident = silc_command_get_ident(cmd->payload);
   int nickfail = 0;
@@ -2047,16 +1973,15 @@ SILC_SERVER_CMD_FUNC(nick)
   SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_NICK, cmd, 1, 1);
 
   /* Check nickname */
-  nick = silc_argument_get_arg_type(cmd->args, 1, NULL);
-  if (silc_server_command_bad_chars(nick) == TRUE) {
+  nick = silc_argument_get_arg_type(cmd->args, 1, &nick_len);
+  if (nick_len > 128)
+    nick[128] = '\0';
+  if (silc_server_name_bad_chars(nick, nick_len) == TRUE) {
     silc_server_command_send_status_reply(cmd, SILC_COMMAND_NICK,
                                          SILC_STATUS_ERR_BAD_NICKNAME);
     goto out;
   }
 
-  if (strlen(nick) > 128)
-    nick[128] = '\0';
-
   /* Check for same nickname */
   if (!strcmp(client->nickname, nick)) {
     nidp = silc_id_payload_encode(client->id, SILC_ID_CLIENT);
@@ -2133,7 +2058,7 @@ silc_server_command_list_send_reply(SilcServerCommandContext cmd,
                                    SilcChannelEntry *gch,
                                    uint32 gch_count)
 {
-  int i;
+  int i, k;
   SilcBuffer packet, idp;
   SilcChannelEntry entry;
   SilcCommandStatus status;
@@ -2141,27 +2066,34 @@ silc_server_command_list_send_reply(SilcServerCommandContext cmd,
   char *topic;
   unsigned char usercount[4];
   uint32 users;
+  int valid_lcount = 0, valid_rcount = 0;
 
-  for (i = 0; i < lch_count; i++)
+  for (i = 0; i < lch_count; i++) {
     if (lch[i]->mode & SILC_CHANNEL_MODE_SECRET)
       lch[i] = NULL;
-  for (i = 0; i < gch_count; i++)
+    else
+      valid_lcount++;
+  }
+  for (i = 0; i < gch_count; i++) {
     if (gch[i]->mode & SILC_CHANNEL_MODE_SECRET)
       gch[i] = NULL;
+    else
+      valid_rcount++;
+  }
 
   status = SILC_STATUS_OK;
   if ((lch_count + gch_count) > 1)
     status = SILC_STATUS_LIST_START;
 
   /* Local list */
-  for (i = 0; i < lch_count; i++) {
+  for (i = 0, k = 0; i < lch_count; i++) {
     entry = lch[i];
     if (!entry)
       continue;
 
-    if (i >= 1)
+    if (k >= 1)
       status = SILC_STATUS_LIST_ITEM;
-    if (i >= 1 && i == lch_count - 1 && !gch_count)
+    if (valid_lcount > 1 && k == valid_lcount - 1 && !valid_rcount)
       status = SILC_STATUS_LIST_END;
 
     idp = silc_id_payload_encode(entry->id, SILC_ID_CHANNEL);
@@ -2189,17 +2121,18 @@ silc_server_command_list_send_reply(SilcServerCommandContext cmd,
                            packet->len, FALSE);
     silc_buffer_free(packet);
     silc_buffer_free(idp);
+    k++;
   }
 
   /* Global list */
-  for (i = 0; i < gch_count; i++) {
+  for (i = 0, k = 0; i < gch_count; i++) {
     entry = gch[i];
     if (!entry)
       continue;
 
-    if (i >= 1)
+    if (k >= 1)
       status = SILC_STATUS_LIST_ITEM;
-    if (i >= 1 && i == gch_count - 1)
+    if (valid_rcount > 1 && k == valid_rcount - 1)
       status = SILC_STATUS_LIST_END;
 
     idp = silc_id_payload_encode(entry->id, SILC_ID_CHANNEL);
@@ -2227,6 +2160,7 @@ silc_server_command_list_send_reply(SilcServerCommandContext cmd,
                            packet->len, FALSE);
     silc_buffer_free(packet);
     silc_buffer_free(idp);
+    k++;
   }
 }
 
@@ -2262,13 +2196,12 @@ SILC_SERVER_CMD_FUNC(list)
     /* Reprocess this packet after received reply from router */
     silc_server_command_pending(server, SILC_COMMAND_LIST, 
                                silc_command_get_ident(cmd->payload),
-                               silc_server_command_destructor,
                                silc_server_command_list, 
                                silc_server_command_dup(cmd));
     cmd->pending = TRUE;
     silc_command_set_ident(cmd->payload, old_ident);
     silc_buffer_free(tmpbuf);
-    return;
+    goto out;
   }
 
   /* Get Channel ID */
@@ -2512,13 +2445,12 @@ SILC_SERVER_CMD_FUNC(invite)
         receiving the reply to the query. */
       silc_server_command_pending(server, SILC_COMMAND_WHOIS, 
                                  server->cmd_ident,
-                                 silc_server_command_destructor,
                                  silc_server_command_invite, 
                                  silc_server_command_dup(cmd));
       cmd->pending = TRUE;
       silc_free(channel_id);
       silc_free(dest_id);
-      return;
+      goto out;
     }
 
     /* Check whether the requested client is already on the channel. */
@@ -2916,13 +2848,12 @@ SILC_SERVER_CMD_FUNC(info)
       /* Reprocess this packet after received reply from router */
       silc_server_command_pending(server, SILC_COMMAND_INFO, 
                                  silc_command_get_ident(cmd->payload),
-                                 silc_server_command_destructor,
                                  silc_server_command_info,
                                  silc_server_command_dup(cmd));
       cmd->pending = TRUE;
       silc_command_set_ident(cmd->payload, old_ident);
       silc_buffer_free(tmpbuf);
-      return;
+      goto out;
     }
 
     if (!entry && !cmd->pending && !server->standalone) {
@@ -2941,13 +2872,12 @@ SILC_SERVER_CMD_FUNC(info)
       /* Reprocess this packet after received reply from router */
       silc_server_command_pending(server, SILC_COMMAND_INFO, 
                                  silc_command_get_ident(cmd->payload),
-                                 silc_server_command_destructor,
                                  silc_server_command_info,
                                  silc_server_command_dup(cmd));
       cmd->pending = TRUE;
       silc_command_set_ident(cmd->payload, old_ident);
       silc_buffer_free(tmpbuf);
-      return;
+      goto out;
     }
   }
 
@@ -3064,11 +2994,11 @@ static void silc_server_command_join_channel(SilcServer server,
       /* The client info is being resolved. Reprocess this packet after
         receiving the reply to the query. */
       silc_server_command_pending(server, SILC_COMMAND_WHOIS, 
-                                 server->cmd_ident, NULL,
+                                 server->cmd_ident,
                                  silc_server_command_join, 
                                  silc_server_command_dup(cmd));
       cmd->pending = TRUE;
-      return;
+      goto out;
     }
 
     cmd->pending = FALSE;
@@ -3143,8 +3073,7 @@ static void silc_server_command_join_channel(SilcServer server,
        username and/or hostname is in the ban list the access to the
        channel is denied. */
     if (channel->ban_list) {
-      if (!channel->ban_list ||
-         silc_string_match(channel->ban_list, check) ||
+      if (silc_string_match(channel->ban_list, check) ||
          silc_string_match(channel->ban_list, check2)) {
        silc_server_command_send_status_reply(
                                      cmd, SILC_COMMAND_JOIN,
@@ -3349,10 +3278,10 @@ SILC_SERVER_CMD_FUNC(join)
   }
   channel_name = tmp;
 
-  if (strlen(channel_name) > 256)
+  if (tmp_len > 256)
     channel_name[255] = '\0';
 
-  if (silc_server_command_bad_chars(channel_name) == TRUE) {
+  if (silc_server_name_bad_chars(channel_name, tmp_len) == TRUE) {
     silc_server_command_send_status_reply(cmd, SILC_COMMAND_JOIN,
                                          SILC_STATUS_ERR_BAD_CHANNEL);
     goto out;
@@ -3440,11 +3369,10 @@ SILC_SERVER_CMD_FUNC(join)
          /* Reprocess this packet after received reply from router */
          silc_server_command_pending(server, SILC_COMMAND_JOIN, 
                                      silc_command_get_ident(cmd->payload),
-                                     silc_server_command_destructor,
                                      silc_server_command_join,
                                      silc_server_command_dup(cmd));
          cmd->pending = TRUE;
-         return;
+         goto out;
        }
        
        /* We are router and the channel does not seem exist so we will check
@@ -3503,11 +3431,15 @@ SILC_SERVER_CMD_FUNC(join)
   if (cmd->pending && context2) {
     SilcServerCommandReplyContext reply = 
       (SilcServerCommandReplyContext)context2;
+
     if (silc_command_get(reply->payload) == SILC_COMMAND_JOIN) {
       tmp = silc_argument_get_arg_type(reply->args, 6, NULL);
       SILC_GET32_MSB(created, tmp);
       create_key = FALSE;      /* Router returned the key already */
     }
+
+    if (silc_command_get(reply->payload) == SILC_COMMAND_WHOIS)
+      created = TRUE;
   }
 
   /* If the channel does not have global users and is also empty the client
@@ -3604,13 +3536,12 @@ SILC_SERVER_CMD_FUNC(motd)
       /* Reprocess this packet after received reply from router */
       silc_server_command_pending(server, SILC_COMMAND_MOTD, 
                                  silc_command_get_ident(cmd->payload),
-                                 silc_server_command_destructor,
                                  silc_server_command_motd,
                                  silc_server_command_dup(cmd));
       cmd->pending = TRUE;
       silc_command_set_ident(cmd->payload, old_ident);
       silc_buffer_free(tmpbuf);
-      return;
+      goto out;
     }
 
     if (!entry && !cmd->pending && !server->standalone) {
@@ -3629,13 +3560,12 @@ SILC_SERVER_CMD_FUNC(motd)
       /* Reprocess this packet after received reply from router */
       silc_server_command_pending(server, SILC_COMMAND_MOTD, 
                                  silc_command_get_ident(cmd->payload),
-                                 silc_server_command_destructor,
                                  silc_server_command_motd,
                                  silc_server_command_dup(cmd));
       cmd->pending = TRUE;
       silc_command_set_ident(cmd->payload, old_ident);
       silc_buffer_free(tmpbuf);
-      return;
+      goto out;
     }
 
     if (!entry) {
@@ -4988,7 +4918,7 @@ SILC_SERVER_CMD_FUNC(close)
     server->router = NULL;
     server->standalone = TRUE;
   }
-  silc_server_free_sock_user_data(server, sock);
+  silc_server_free_sock_user_data(server, sock, NULL);
   silc_server_close_connection(server, sock);
   
  out:
@@ -5175,15 +5105,13 @@ SILC_SERVER_CMD_FUNC(users)
       /* Reprocess this packet after received reply */
       silc_server_command_pending(server, SILC_COMMAND_USERS, 
                                  silc_command_get_ident(cmd->payload),
-                                 silc_server_command_destructor,
                                  silc_server_command_users,
                                  silc_server_command_dup(cmd));
       cmd->pending = TRUE;
       silc_command_set_ident(cmd->payload, ident);
-      
       silc_buffer_free(tmpbuf);
       silc_free(id);
-      return;
+      goto out;
     }
 
     /* Check the global list as well. */
@@ -5317,14 +5245,12 @@ SILC_SERVER_CMD_FUNC(getkey)
       /* Reprocess this packet after received reply from router */
       silc_server_command_pending(server, SILC_COMMAND_GETKEY, 
                                  silc_command_get_ident(cmd->payload),
-                                 silc_server_command_destructor,
                                  silc_server_command_getkey,
                                  silc_server_command_dup(cmd));
       cmd->pending = TRUE;
-      
       silc_command_set_ident(cmd->payload, old_ident);
       silc_buffer_free(tmpbuf);
-      return;
+      goto out;
     }
 
     if (!client) {
@@ -5383,14 +5309,13 @@ SILC_SERVER_CMD_FUNC(getkey)
       /* Reprocess this packet after received reply from router */
       silc_server_command_pending(server, SILC_COMMAND_GETKEY, 
                                  silc_command_get_ident(cmd->payload),
-                                 silc_server_command_destructor,
                                  silc_server_command_getkey,
                                  silc_server_command_dup(cmd));
       cmd->pending = TRUE;
       
       silc_command_set_ident(cmd->payload, old_ident);
       silc_buffer_free(tmpbuf);
-      return;
+      goto out;
     }
 
     if (!server_entry) {