+#define HasPriv(cli, priv) FlagHas(cli_privs(cli), priv)
+/** Grant a privilege to a client. */
+#define SetPriv(cli, priv) FlagSet(cli_privs(cli), priv)
+/** Revoke a privilege from a client. */
+#define ClrPriv(cli, priv) FlagClr(cli_privs(cli), priv)