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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
00043 #define LDNS_RESOLV_KEYWORDS 5
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 bool _usevc;
00095 bool _igntc;
00097 uint8_t _ip6;
00099 bool _defnames;
00101 bool _dnsrch;
00103 struct timeval _timeout;
00105 bool _fail;
00107 bool _random;
00109 int _socket;
00113 int _axfr_soa_count;
00114
00115
00116
00118 ldns_pkt *_cur_axfr_pkt;
00120 uint16_t _axfr_i;
00121
00122 uint16_t _edns_udp_size;
00123
00124
00125
00126
00128 char *_tsig_keyname;
00130 char *_tsig_keydata;
00132 char *_tsig_algorithm;
00133 };
00134 typedef struct ldns_struct_resolver ldns_resolver;
00135
00136
00137
00138
00144 uint16_t ldns_resolver_port(const ldns_resolver *r);
00145
00151 bool ldns_resolver_recursive(const ldns_resolver *r);
00152
00158 bool ldns_resolver_debug(const ldns_resolver *r);
00159
00165 uint8_t ldns_resolver_retry(const ldns_resolver *r);
00166
00172 uint8_t ldns_resolver_retrans(const ldns_resolver *r);
00173
00179 uint8_t ldns_resolver_ip6(const ldns_resolver *r);
00180
00186 uint16_t ldns_resolver_edns_udp_size(const ldns_resolver *r);
00192 bool ldns_resolver_usevc(const ldns_resolver *r);
00198 bool ldns_resolver_fail(const ldns_resolver *r);
00204 bool ldns_resolver_dnssec(const ldns_resolver *r);
00210 bool ldns_resolver_dnssec_cd(const ldns_resolver *r);
00216 bool ldns_resolver_igntc(const ldns_resolver *r);
00222 bool ldns_resolver_random(const ldns_resolver *r);
00228 size_t ldns_resolver_nameserver_count(const ldns_resolver *r);
00234 ldns_rdf *ldns_resolver_domain(const ldns_resolver *r);
00240 struct timeval ldns_resolver_timeout(const ldns_resolver *r);
00246 ldns_rdf** ldns_resolver_searchlist(const ldns_resolver *r);
00252 ldns_rdf** ldns_resolver_nameservers(const ldns_resolver *r);
00259 size_t * ldns_resolver_rtt(const ldns_resolver *r);
00266 size_t ldns_resolver_nameserver_rtt(const ldns_resolver *r, size_t pos);
00272 char *ldns_resolver_tsig_keyname(const ldns_resolver *r);
00278 char *ldns_resolver_tsig_algorithm(const ldns_resolver *r);
00284 char *ldns_resolver_tsig_keydata(const ldns_resolver *r);
00290 ldns_rdf* ldns_resolver_pop_nameserver(ldns_resolver *r);
00291
00297 size_t ldns_resolver_searchlist_count(const ldns_resolver *r);
00298
00299
00305 void ldns_resolver_set_port(ldns_resolver *r, uint16_t p);
00306
00312 void ldns_resolver_set_recursive(ldns_resolver *r, bool b);
00313
00319 void ldns_resolver_set_debug(ldns_resolver *r, bool b);
00320
00325 void ldns_resolver_incr_nameserver_count(ldns_resolver *r);
00326
00331 void ldns_resolver_dec_nameserver_count(ldns_resolver *r);
00332
00339 void ldns_resolver_set_nameserver_rrlist(ldns_resolver *r, ldns_rr_list *ns);
00340
00346 void ldns_resolver_set_nameserver_count(ldns_resolver *r, size_t c);
00347
00353 void ldns_resolver_set_nameservers(ldns_resolver *r, ldns_rdf **rd);
00354
00361 void ldns_resolver_set_domain(ldns_resolver *r, ldns_rdf *rd);
00362
00368 void ldns_resolver_set_timeout(ldns_resolver *r, struct timeval timeout);
00369
00375 void ldns_resolver_push_searchlist(ldns_resolver *r, ldns_rdf *rd);
00376
00382 void ldns_resolver_set_defnames(ldns_resolver *r, bool b);
00383
00389 void ldns_resolver_set_usevc(ldns_resolver *r, bool b);
00390
00396 void ldns_resolver_set_dnsrch(ldns_resolver *r, bool b);
00397
00403 void ldns_resolver_set_dnssec(ldns_resolver *r, bool b);
00404
00410 void ldns_resolver_set_dnssec_cd(ldns_resolver *r, bool b);
00416 void ldns_resolver_set_retrans(ldns_resolver *r, uint8_t re);
00417
00423 void ldns_resolver_set_retry(ldns_resolver *r, uint8_t re);
00424
00430 void ldns_resolver_set_ip6(ldns_resolver *r, uint8_t i);
00431
00437 void ldns_resolver_set_fail(ldns_resolver *r, bool b);
00438
00444 void ldns_resolver_set_igntc(ldns_resolver *r, bool b);
00445
00451 void ldns_resolver_set_edns_udp_size(ldns_resolver *r, uint16_t s);
00452
00458 void ldns_resolver_set_tsig_keyname(ldns_resolver *r, char *tsig_keyname);
00459
00465 void ldns_resolver_set_tsig_algorithm(ldns_resolver *r, char *tsig_algorithm);
00466
00472 void ldns_resolver_set_tsig_keydata(ldns_resolver *r, char *tsig_keydata);
00473
00480 void ldns_resolver_set_rtt(ldns_resolver *r, size_t *rtt);
00481
00489 void ldns_resolver_set_nameserver_rtt(ldns_resolver *r, size_t pos, size_t value);
00490
00496 void ldns_resolver_set_random(ldns_resolver *r, bool b);
00497
00505 ldns_status ldns_resolver_push_nameserver(ldns_resolver *r, ldns_rdf *n);
00506
00514 ldns_status ldns_resolver_push_nameserver_rr(ldns_resolver *r, ldns_rr *rr);
00515
00522 ldns_status ldns_resolver_push_nameserver_rr_list(ldns_resolver *r, ldns_rr_list *rrlist);
00523
00535 ldns_pkt* ldns_resolver_search(const ldns_resolver *r, const ldns_rdf *rdf, ldns_rr_type t, ldns_rr_class c, uint16_t flags);
00536
00547 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);
00548
00559 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);
00560
00567 ldns_status ldns_resolver_send_pkt(ldns_pkt **answer, const ldns_resolver *r, const ldns_pkt *query_pkt);
00568
00579 ldns_pkt* ldns_resolver_query(const ldns_resolver *r, const ldns_rdf *name, ldns_rr_type type, ldns_rr_class class, uint16_t flags);
00580
00581
00586 ldns_resolver* ldns_resolver_new(void);
00587
00595 ldns_status ldns_resolver_new_frm_fp(ldns_resolver **r, FILE *fp);
00596
00605 ldns_status ldns_resolver_new_frm_fp_l(ldns_resolver **r, FILE *fp, int *line_nr);
00606
00615 ldns_status ldns_resolver_new_frm_file(ldns_resolver **r, const char *filename);
00616
00621 void ldns_resolver_free(ldns_resolver *res);
00622
00627 void ldns_resolver_deep_free(ldns_resolver *res);
00628
00635 ldns_rr* ldns_axfr_next(ldns_resolver *resolver);
00636
00642 bool ldns_axfr_complete(const ldns_resolver *resolver);
00643
00650 ldns_pkt *ldns_axfr_last_pkt(const ldns_resolver *res);
00651
00656 void ldns_resolver_nameservers_randomize(ldns_resolver *r);
00657
00658 #endif