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00020 #ifndef LDNS_RESOLVER_H
00021 #define LDNS_RESOLVER_H
00022
00023 #include <ldns/error.h>
00024 #include <ldns/common.h>
00025 #include <ldns/rr.h>
00026 #include <ldns/tsig.h>
00027 #include <ldns/rdata.h>
00028 #include <ldns/packet.h>
00029 #include <sys/time.h>
00030
00032 #define LDNS_RESOLV_CONF "/etc/resolv.conf"
00033
00034 #define LDNS_RESOLV_HOSTS "/etc/hosts"
00035
00036 #define LDNS_RESOLV_KEYWORD -1
00037 #define LDNS_RESOLV_DEFDOMAIN 0
00038 #define LDNS_RESOLV_NAMESERVER 1
00039 #define LDNS_RESOLV_SEARCH 2
00040 #define LDNS_RESOLV_SORTLIST 3
00041 #define LDNS_RESOLV_OPTIONS 4
00042 #define LDNS_RESOLV_ANCHOR 5
00043 #define LDNS_RESOLV_KEYWORDS 6
00044
00045 #define LDNS_RESOLV_INETANY 0
00046 #define LDNS_RESOLV_INET 1
00047 #define LDNS_RESOLV_INET6 2
00048
00049 #define LDNS_RESOLV_RTT_INF 0
00050 #define LDNS_RESOLV_RTT_MIN 1
00051
00055 struct ldns_struct_resolver
00056 {
00058 uint16_t _port;
00059
00061 ldns_rdf **_nameservers;
00063 size_t _nameserver_count;
00064
00066 size_t *_rtt;
00067
00069 bool _recursive;
00070
00072 bool _debug;
00073
00075 ldns_rdf *_domain;
00076
00078 ldns_rdf **_searchlist;
00079
00081 size_t _searchlist_count;
00082
00084 uint8_t _retry;
00086 uint8_t _retrans;
00087
00089 bool _dnssec;
00091 bool _dnssec_cd;
00093 ldns_rr_list * _dnssec_anchors;
00095 bool _usevc;
00097 bool _igntc;
00099 uint8_t _ip6;
00101 bool _defnames;
00103 bool _dnsrch;
00105 struct timeval _timeout;
00107 bool _fail;
00109 bool _random;
00111 int _socket;
00115 int _axfr_soa_count;
00116
00117
00118
00120 ldns_pkt *_cur_axfr_pkt;
00122 uint16_t _axfr_i;
00123
00124 uint16_t _edns_udp_size;
00125
00126
00127
00128
00130 char *_tsig_keyname;
00132 char *_tsig_keydata;
00134 char *_tsig_algorithm;
00135 };
00136 typedef struct ldns_struct_resolver ldns_resolver;
00137
00138
00139
00140
00146 uint16_t ldns_resolver_port(const ldns_resolver *r);
00147
00153 bool ldns_resolver_recursive(const ldns_resolver *r);
00154
00160 bool ldns_resolver_debug(const ldns_resolver *r);
00161
00167 uint8_t ldns_resolver_retry(const ldns_resolver *r);
00168
00174 uint8_t ldns_resolver_retrans(const ldns_resolver *r);
00175
00181 uint8_t ldns_resolver_ip6(const ldns_resolver *r);
00182
00188 uint16_t ldns_resolver_edns_udp_size(const ldns_resolver *r);
00194 bool ldns_resolver_usevc(const ldns_resolver *r);
00200 bool ldns_resolver_fail(const ldns_resolver *r);
00206 bool ldns_resolver_dnssec(const ldns_resolver *r);
00212 bool ldns_resolver_dnssec_cd(const ldns_resolver *r);
00218 ldns_rr_list * ldns_resolver_dnssec_anchors(const ldns_resolver *r);
00224 bool ldns_resolver_igntc(const ldns_resolver *r);
00230 bool ldns_resolver_random(const ldns_resolver *r);
00236 size_t ldns_resolver_nameserver_count(const ldns_resolver *r);
00242 ldns_rdf *ldns_resolver_domain(const ldns_resolver *r);
00248 struct timeval ldns_resolver_timeout(const ldns_resolver *r);
00254 ldns_rdf** ldns_resolver_searchlist(const ldns_resolver *r);
00260 ldns_rdf** ldns_resolver_nameservers(const ldns_resolver *r);
00267 size_t * ldns_resolver_rtt(const ldns_resolver *r);
00274 size_t ldns_resolver_nameserver_rtt(const ldns_resolver *r, size_t pos);
00280 char *ldns_resolver_tsig_keyname(const ldns_resolver *r);
00286 char *ldns_resolver_tsig_algorithm(const ldns_resolver *r);
00292 char *ldns_resolver_tsig_keydata(const ldns_resolver *r);
00298 ldns_rdf* ldns_resolver_pop_nameserver(ldns_resolver *r);
00299
00305 size_t ldns_resolver_searchlist_count(const ldns_resolver *r);
00306
00307
00313 void ldns_resolver_set_port(ldns_resolver *r, uint16_t p);
00314
00320 void ldns_resolver_set_recursive(ldns_resolver *r, bool b);
00321
00327 void ldns_resolver_set_debug(ldns_resolver *r, bool b);
00328
00333 void ldns_resolver_incr_nameserver_count(ldns_resolver *r);
00334
00339 void ldns_resolver_dec_nameserver_count(ldns_resolver *r);
00340
00347 void ldns_resolver_set_nameserver_rrlist(ldns_resolver *r, ldns_rr_list *ns);
00348
00354 void ldns_resolver_set_nameserver_count(ldns_resolver *r, size_t c);
00355
00361 void ldns_resolver_set_nameservers(ldns_resolver *r, ldns_rdf **rd);
00362
00369 void ldns_resolver_set_domain(ldns_resolver *r, ldns_rdf *rd);
00370
00376 void ldns_resolver_set_timeout(ldns_resolver *r, struct timeval timeout);
00377
00383 void ldns_resolver_push_searchlist(ldns_resolver *r, ldns_rdf *rd);
00384
00390 void ldns_resolver_set_defnames(ldns_resolver *r, bool b);
00391
00397 void ldns_resolver_set_usevc(ldns_resolver *r, bool b);
00398
00404 void ldns_resolver_set_dnsrch(ldns_resolver *r, bool b);
00405
00411 void ldns_resolver_set_dnssec(ldns_resolver *r, bool b);
00412
00418 void ldns_resolver_set_dnssec_cd(ldns_resolver *r, bool b);
00424 void ldns_resolver_set_dnssec_anchors(ldns_resolver *r, ldns_rr_list * l);
00425
00432 ldns_status ldns_resolver_push_dnssec_anchor(ldns_resolver *r, ldns_rr *rr);
00433
00439 void ldns_resolver_set_retrans(ldns_resolver *r, uint8_t re);
00440
00446 void ldns_resolver_set_retry(ldns_resolver *r, uint8_t re);
00447
00453 void ldns_resolver_set_ip6(ldns_resolver *r, uint8_t i);
00454
00460 void ldns_resolver_set_fail(ldns_resolver *r, bool b);
00461
00467 void ldns_resolver_set_igntc(ldns_resolver *r, bool b);
00468
00474 void ldns_resolver_set_edns_udp_size(ldns_resolver *r, uint16_t s);
00475
00481 void ldns_resolver_set_tsig_keyname(ldns_resolver *r, char *tsig_keyname);
00482
00488 void ldns_resolver_set_tsig_algorithm(ldns_resolver *r, char *tsig_algorithm);
00489
00495 void ldns_resolver_set_tsig_keydata(ldns_resolver *r, char *tsig_keydata);
00496
00503 void ldns_resolver_set_rtt(ldns_resolver *r, size_t *rtt);
00504
00512 void ldns_resolver_set_nameserver_rtt(ldns_resolver *r, size_t pos, size_t value);
00513
00519 void ldns_resolver_set_random(ldns_resolver *r, bool b);
00520
00528 ldns_status ldns_resolver_push_nameserver(ldns_resolver *r, ldns_rdf *n);
00529
00537 ldns_status ldns_resolver_push_nameserver_rr(ldns_resolver *r, ldns_rr *rr);
00538
00545 ldns_status ldns_resolver_push_nameserver_rr_list(ldns_resolver *r, ldns_rr_list *rrlist);
00546
00558 ldns_pkt* ldns_resolver_search(const ldns_resolver *r, const ldns_rdf *rdf, ldns_rr_type t, ldns_rr_class c, uint16_t flags);
00559
00570 ldns_status ldns_resolver_prepare_query_pkt(ldns_pkt **q, ldns_resolver *r, const ldns_rdf *name, ldns_rr_type t, ldns_rr_class c, uint16_t f);
00571
00582 ldns_status ldns_resolver_send(ldns_pkt **answer, ldns_resolver *r, const ldns_rdf *name, ldns_rr_type t, ldns_rr_class c, uint16_t flags);
00583
00590 ldns_status ldns_resolver_send_pkt(ldns_pkt **answer, const ldns_resolver *r, const ldns_pkt *query_pkt);
00591
00602 ldns_pkt* ldns_resolver_query(const ldns_resolver *r, const ldns_rdf *name, ldns_rr_type type, ldns_rr_class class, uint16_t flags);
00603
00604
00609 ldns_resolver* ldns_resolver_new(void);
00610
00618 ldns_status ldns_resolver_new_frm_fp(ldns_resolver **r, FILE *fp);
00619
00628 ldns_status ldns_resolver_new_frm_fp_l(ldns_resolver **r, FILE *fp, int *line_nr);
00629
00638 ldns_status ldns_resolver_new_frm_file(ldns_resolver **r, const char *filename);
00639
00644 void ldns_resolver_free(ldns_resolver *res);
00645
00650 void ldns_resolver_deep_free(ldns_resolver *res);
00651
00658 ldns_rr* ldns_axfr_next(ldns_resolver *resolver);
00659
00665 bool ldns_axfr_complete(const ldns_resolver *resolver);
00666
00673 ldns_pkt *ldns_axfr_last_pkt(const ldns_resolver *res);
00674
00679 void ldns_resolver_nameservers_randomize(ldns_resolver *r);
00680
00688 bool ldns_resolver_trusted_key(const ldns_resolver *r, ldns_rr_list * keys, ldns_rr_list * trusted_keys);
00689
00690 #endif