+/**
+ * Check wether a client is allowed to administer a channel or not.
+ *
+ * @param Chan The channel to test.
+ * @param Client The client from which the command has been received.
+ * @param Origin The originator of the command (or NULL).
+ * @param OnChannel Set to true if the originator is member of the channel.
+ * @param AdminOk Set to true if the client is allowed to do
+ * administrative tasks on this channel.
+ * @param UseServerMode Set to true if ngIRCd should emulate "server mode",
+ * that is send commands as if originating from a server
+ * and not the originator of the command.
+ */
+GLOBAL void
+Channel_CheckAdminRights(CHANNEL *Chan, CLIENT *Client, CLIENT *Origin,
+ bool *OnChannel, bool *AdminOk, bool *UseServerMode)
+{
+ assert (Chan != NULL);
+ assert (Client != NULL);
+ assert (OnChannel != NULL);
+ assert (AdminOk != NULL);
+ assert (UseServerMode != NULL);
+
+ /* Use the client as origin, if no origin has been given (no prefix?) */
+ if (!Origin)
+ Origin = Client;
+
+ *OnChannel = false;
+ *AdminOk = false;
+ *UseServerMode = false;
+
+ if (Client_Type(Client) != CLIENT_USER
+ && Client_Type(Client) != CLIENT_SERVER
+ && Client_Type(Client) != CLIENT_SERVICE)
+ return;
+
+ /* Allow channel administration if the client is a server or service */
+ if (Client_Type(Client) != CLIENT_USER) {
+ *AdminOk = true;
+ return;
+ }
+
+ *OnChannel = Channel_IsMemberOf(Chan, Origin);
+
+ if (*OnChannel && strchr(Channel_UserModes(Chan, Origin), 'o')) {
+ /* User is a channel operator */
+ *AdminOk = true;
+ } else if (Conf_OperCanMode) {
+ /* IRC operators are allowed to administer channels as well */
+ if (Client_OperByMe(Origin)) {
+ *AdminOk = true;
+ if (Conf_OperServerMode)
+ *UseServerMode = true;
+ }
+ }
+} /* Channel_CheckAdminRights */
+
+