@deftypefun {int} {dane_query_tlsa} (dane_state_t @var{s}, dane_query_t * @var{r}, const char * @var{host}, const char * @var{proto}, unsigned int @var{port})
@var{s}: The DANE state structure

@var{r}: A structure to place the result

@var{host}: The host name to resolve.

@var{proto}: The protocol type (tcp, udp, etc.)

@var{port}: The service port number (eg. 443).

This function will query the DNS server for the TLSA (DANE)
data for the given host.

@strong{Returns:} On success, @code{DANE_E_SUCCESS}  (0) is returned, otherwise a
negative error value.
@end deftypefun