/* more sophisticated functions */ ldns_resolver * ldns_resolver_new(void) { ldns_resolver *r; r = LDNS_MALLOC(ldns_resolver); if (!r) { return NULL; } r->_searchlist = NULL; r->_nameservers = NULL; r->_rtt = NULL; /* defaults are filled out */ ldns_resolver_set_searchlist_count(r, 0); ldns_resolver_set_nameserver_count(r, 0); ldns_resolver_set_usevc(r, 0); ldns_resolver_set_port(r, LDNS_PORT); ldns_resolver_set_domain(r, NULL); ldns_resolver_set_defnames(r, false); ldns_resolver_set_retry(r, 3); ldns_resolver_set_retrans(r, 2); ldns_resolver_set_fallback(r, true); ldns_resolver_set_fail(r, false); ldns_resolver_set_edns_udp_size(r, 0); ldns_resolver_set_dnssec(r, false); ldns_resolver_set_dnssec_cd(r, false); ldns_resolver_set_dnssec_anchors(r, NULL); ldns_resolver_set_ip6(r, LDNS_RESOLV_INETANY); ldns_resolver_set_igntc(r, false); ldns_resolver_set_recursive(r, false); ldns_resolver_set_dnsrch(r, true); /* randomize the nameserver to be queried * when there are multiple */ ldns_resolver_set_random(r, true); ldns_resolver_set_debug(r, 0); r->_timeout.tv_sec = LDNS_DEFAULT_TIMEOUT_SEC; r->_timeout.tv_usec = LDNS_DEFAULT_TIMEOUT_USEC; /* TODO: fd=0 is actually a valid socket (stdin), replace with -1 */ r->_socket = 0; r->_axfr_soa_count = 0; r->_axfr_i = 0; r->_cur_axfr_pkt = NULL; r->_tsig_keyname = NULL; r->_tsig_keydata = NULL; r->_tsig_algorithm = NULL; return r; }
void ldns_resolver_push_searchlist(ldns_resolver *r, ldns_rdf *d) { ldns_rdf **searchlist; size_t list_count; if (ldns_rdf_get_type(d) != LDNS_RDF_TYPE_DNAME) { return; } list_count = ldns_resolver_searchlist_count(r); searchlist = ldns_resolver_searchlist(r); searchlist = LDNS_XREALLOC(searchlist, ldns_rdf *, (list_count + 1)); if (searchlist) { r->_searchlist = searchlist; searchlist[list_count] = ldns_rdf_clone(d); ldns_resolver_set_searchlist_count(r, list_count + 1); } }