5 #include "ares_build.h"
7 #ifdef CARES_HAVE_ARPA_NAMESER_H
8 # include <arpa/nameser.h>
10 #ifdef CARES_HAVE_ARPA_NAMESER_COMPAT_H
11 # include <arpa/nameser_compat.h>
14 /* ============================================================================
15 * arpa/nameser.h may or may not provide ALL of the below defines, so check
16 * each one individually and set if not
17 * ============================================================================
21 # define NS_PACKETSZ 512 /* maximum packet size */
25 # define NS_MAXDNAME 256 /* maximum domain name */
29 # define NS_MAXCDNAME 255 /* maximum compressed domain name */
33 # define NS_MAXLABEL 63
37 # define NS_HFIXEDSZ 12 /* #/bytes of fixed data in header */
41 # define NS_QFIXEDSZ 4 /* #/bytes of fixed data in query */
45 # define NS_RRFIXEDSZ 10 /* #/bytes of fixed data in r record */
53 # define NS_INADDRSZ 4
57 # define NS_IN6ADDRSZ 16
61 # define NS_CMPRSFLGS 0xc0 /* Flag bits indicating name compression. */
64 #ifndef NS_DEFAULTPORT
65 # define NS_DEFAULTPORT 53 /* For both TCP and UDP. */
68 /* ============================================================================
69 * arpa/nameser.h should provide these enumerations always, so if not found,
71 * ============================================================================
73 #ifndef CARES_HAVE_ARPA_NAMESER_H
75 typedef enum __ns_class {
76 ns_c_invalid = 0, /* Cookie. */
77 ns_c_in = 1, /* Internet. */
78 ns_c_2 = 2, /* unallocated/unsupported. */
79 ns_c_chaos = 3, /* MIT Chaos-net. */
80 ns_c_hs = 4, /* MIT Hesiod. */
81 /* Query class values which do not appear in resource records */
82 ns_c_none = 254, /* for prereq. sections in update requests */
83 ns_c_any = 255, /* Wildcard match. */
87 typedef enum __ns_type {
88 ns_t_invalid = 0, /* Cookie. */
89 ns_t_a = 1, /* Host address. */
90 ns_t_ns = 2, /* Authoritative server. */
91 ns_t_md = 3, /* Mail destination. */
92 ns_t_mf = 4, /* Mail forwarder. */
93 ns_t_cname = 5, /* Canonical name. */
94 ns_t_soa = 6, /* Start of authority zone. */
95 ns_t_mb = 7, /* Mailbox domain name. */
96 ns_t_mg = 8, /* Mail group member. */
97 ns_t_mr = 9, /* Mail rename name. */
98 ns_t_null = 10, /* Null resource record. */
99 ns_t_wks = 11, /* Well known service. */
100 ns_t_ptr = 12, /* Domain name pointer. */
101 ns_t_hinfo = 13, /* Host information. */
102 ns_t_minfo = 14, /* Mailbox information. */
103 ns_t_mx = 15, /* Mail routing information. */
104 ns_t_txt = 16, /* Text strings. */
105 ns_t_rp = 17, /* Responsible person. */
106 ns_t_afsdb = 18, /* AFS cell database. */
107 ns_t_x25 = 19, /* X_25 calling address. */
108 ns_t_isdn = 20, /* ISDN calling address. */
109 ns_t_rt = 21, /* Router. */
110 ns_t_nsap = 22, /* NSAP address. */
111 ns_t_nsap_ptr = 23, /* Reverse NSAP lookup (deprecated). */
112 ns_t_sig = 24, /* Security signature. */
113 ns_t_key = 25, /* Security key. */
114 ns_t_px = 26, /* X.400 mail mapping. */
115 ns_t_gpos = 27, /* Geographical position (withdrawn). */
116 ns_t_aaaa = 28, /* Ip6 Address. */
117 ns_t_loc = 29, /* Location Information. */
118 ns_t_nxt = 30, /* Next domain (security). */
119 ns_t_eid = 31, /* Endpoint identifier. */
120 ns_t_nimloc = 32, /* Nimrod Locator. */
121 ns_t_srv = 33, /* Server Selection. */
122 ns_t_atma = 34, /* ATM Address */
123 ns_t_naptr = 35, /* Naming Authority PoinTeR */
124 ns_t_kx = 36, /* Key Exchange */
125 ns_t_cert = 37, /* Certification record */
126 ns_t_a6 = 38, /* IPv6 address (deprecates AAAA) */
127 ns_t_dname = 39, /* Non-terminal DNAME (for IPv6) */
128 ns_t_sink = 40, /* Kitchen sink (experimentatl) */
129 ns_t_opt = 41, /* EDNS0 option (meta-RR) */
130 ns_t_apl = 42, /* Address prefix list (RFC3123) */
131 ns_t_ds = 43, /* Delegation Signer (RFC4034) */
132 ns_t_sshfp = 44, /* SSH Key Fingerprint (RFC4255) */
133 ns_t_rrsig = 46, /* Resource Record Signature (RFC4034) */
134 ns_t_nsec = 47, /* Next Secure (RFC4034) */
135 ns_t_dnskey = 48, /* DNS Public Key (RFC4034) */
136 ns_t_tkey = 249, /* Transaction key */
137 ns_t_tsig = 250, /* Transaction signature. */
138 ns_t_ixfr = 251, /* Incremental zone transfer. */
139 ns_t_axfr = 252, /* Transfer zone of authority. */
140 ns_t_mailb = 253, /* Transfer mailbox records. */
141 ns_t_maila = 254, /* Transfer mail agent records. */
142 ns_t_any = 255, /* Wildcard match. */
143 ns_t_uri = 256, /* Uniform Resource Identifier (RFC7553) */
144 ns_t_caa = 257, /* Certification Authority Authorization. */
148 typedef enum __ns_opcode {
149 ns_o_query = 0, /* Standard query. */
150 ns_o_iquery = 1, /* Inverse query (deprecated/unsupported). */
151 ns_o_status = 2, /* Name server status query (unsupported). */
152 /* Opcode 3 is undefined/reserved. */
153 ns_o_notify = 4, /* Zone change notification. */
154 ns_o_update = 5, /* Zone update message. */
158 typedef enum __ns_rcode {
159 ns_r_noerror = 0, /* No error occurred. */
160 ns_r_formerr = 1, /* Format error. */
161 ns_r_servfail = 2, /* Server failure. */
162 ns_r_nxdomain = 3, /* Name error. */
163 ns_r_notimpl = 4, /* Unimplemented. */
164 ns_r_refused = 5, /* Operation refused. */
165 /* these are for BIND_UPDATE */
166 ns_r_yxdomain = 6, /* Name exists */
167 ns_r_yxrrset = 7, /* RRset exists */
168 ns_r_nxrrset = 8, /* RRset does not exist */
169 ns_r_notauth = 9, /* Not authoritative for zone */
170 ns_r_notzone = 10, /* Zone of record different from zone section */
172 /* The following are TSIG extended errors */
178 #endif /* CARES_HAVE_ARPA_NAMESER_H */
181 /* ============================================================================
182 * arpa/nameser_compat.h typically sets these. However on some systems
183 * arpa/nameser.h does, but may not set all of them. Lets conditionally
185 * ============================================================================
189 # define PACKETSZ NS_PACKETSZ
193 # define MAXDNAME NS_MAXDNAME
197 # define MAXCDNAME NS_MAXCDNAME
201 # define MAXLABEL NS_MAXLABEL
205 # define HFIXEDSZ NS_HFIXEDSZ
209 # define QFIXEDSZ NS_QFIXEDSZ
213 # define RRFIXEDSZ NS_RRFIXEDSZ
217 # define INDIR_MASK NS_CMPRSFLGS
220 #ifndef NAMESERVER_PORT
221 # define NAMESERVER_PORT NS_DEFAULTPORT
227 # define O_QUERY 0 /* ns_o_query */
230 # define O_IQUERY 1 /* ns_o_iquery */
233 # define O_STATUS 2 /* ns_o_status */
236 # define O_NOTIFY 4 /* ns_o_notify */
239 # define O_UPDATE 5 /* ns_o_update */
245 # define SERVFAIL ns_r_servfail
248 # define NOTIMP ns_r_notimpl
251 # define REFUSED ns_r_refused
253 #if defined(_WIN32) && !defined(HAVE_ARPA_NAMESER_COMPAT_H) && defined(NOERROR)
254 # undef NOERROR /* it seems this is already defined in winerror.h */
257 # define NOERROR ns_r_noerror
260 # define FORMERR ns_r_formerr
263 # define NXDOMAIN ns_r_nxdomain
265 /* Non-standard response codes, use numeric values */
267 # define YXDOMAIN 6 /* ns_r_yxdomain */
270 # define YXRRSET 7 /* ns_r_yxrrset */
273 # define NXRRSET 8 /* ns_r_nxrrset */
276 # define NOTAUTH 9 /* ns_r_notauth */
279 # define NOTZONE 10 /* ns_r_notzone */
282 # define TSIG_BADSIG 16 /* ns_r_badsig */
285 # define TSIG_BADKEY 17 /* ns_r_badkey */
288 # define TSIG_BADTIME 18 /* ns_r_badtime */
294 # define C_IN 1 /* ns_c_in */
297 # define C_CHAOS 3 /* ns_c_chaos */
300 # define C_HS 4 /* ns_c_hs */
303 # define C_NONE 254 /* ns_c_none */
306 # define C_ANY 255 /* ns_c_any */
312 # define T_A 1 /* ns_t_a */
315 # define T_NS 2 /* ns_t_ns */
318 # define T_MD 3 /* ns_t_md */
321 # define T_MF 4 /* ns_t_mf */
324 # define T_CNAME 5 /* ns_t_cname */
327 # define T_SOA 6 /* ns_t_soa */
330 # define T_MB 7 /* ns_t_mb */
333 # define T_MG 8 /* ns_t_mg */
336 # define T_MR 9 /* ns_t_mr */
339 # define T_NULL 10 /* ns_t_null */
342 # define T_WKS 11 /* ns_t_wks */
345 # define T_PTR 12 /* ns_t_ptr */
348 # define T_HINFO 13 /* ns_t_hinfo */
351 # define T_MINFO 14 /* ns_t_minfo */
354 # define T_MX 15 /* ns_t_mx */
357 # define T_TXT 16 /* ns_t_txt */
360 # define T_RP 17 /* ns_t_rp */
363 # define T_AFSDB 18 /* ns_t_afsdb */
366 # define T_X25 19 /* ns_t_x25 */
369 # define T_ISDN 20 /* ns_t_isdn */
372 # define T_RT 21 /* ns_t_rt */
375 # define T_NSAP 22 /* ns_t_nsap */
378 # define T_NSAP_PTR 23 /* ns_t_nsap_ptr */
381 # define T_SIG 24 /* ns_t_sig */
384 # define T_KEY 25 /* ns_t_key */
387 # define T_PX 26 /* ns_t_px */
390 # define T_GPOS 27 /* ns_t_gpos */
393 # define T_AAAA 28 /* ns_t_aaaa */
396 # define T_LOC 29 /* ns_t_loc */
399 # define T_NXT 30 /* ns_t_nxt */
402 # define T_EID 31 /* ns_t_eid */
405 # define T_NIMLOC 32 /* ns_t_nimloc */
408 # define T_SRV 33 /* ns_t_srv */
411 # define T_ATMA 34 /* ns_t_atma */
414 # define T_NAPTR 35 /* ns_t_naptr */
417 # define T_KX 36 /* ns_t_kx */
420 # define T_CERT 37 /* ns_t_cert */
423 # define T_A6 38 /* ns_t_a6 */
426 # define T_DNAME 39 /* ns_t_dname */
429 # define T_SINK 40 /* ns_t_sink */
432 # define T_OPT 41 /* ns_t_opt */
435 # define T_APL 42 /* ns_t_apl */
438 # define T_DS 43 /* ns_t_ds */
441 # define T_SSHFP 44 /* ns_t_sshfp */
444 # define T_RRSIG 46 /* ns_t_rrsig */
447 # define T_NSEC 47 /* ns_t_nsec */
450 # define T_DNSKEY 48 /* ns_t_dnskey */
453 # define T_TKEY 249 /* ns_t_tkey */
456 # define T_TSIG 250 /* ns_t_tsig */
459 # define T_IXFR 251 /* ns_t_ixfr */
462 # define T_AXFR 252 /* ns_t_axfr */
465 # define T_MAILB 253 /* ns_t_mailb */
468 # define T_MAILA 254 /* ns_t_maila */
471 # define T_ANY 255 /* ns_t_any */
474 # define T_URI 256 /* ns_t_uri */
477 # define T_CAA 257 /* ns_t_caa */
480 # define T_MAX 65536 /* ns_t_max */
484 #endif /* ARES_NAMESER_H */