NTSTATUS check_negative_conn_cache_timeout( const char *domain, const char *server, unsigned int failed_cache_timeout );
NTSTATUS check_negative_conn_cache( const char *domain, const char *server);
void add_failed_connection_entry(const char *domain, const char *server, NTSTATUS result) ;
-void delete_negative_conn_cache(const char *domain, const char *server);
void flush_negative_conn_cache_for_domain(const char *domain);
/* The following definitions come from ../librpc/rpc/dcerpc_error.c */