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-rw-r--r--include/ares_nameser.h484
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diff --git a/include/ares_nameser.h b/include/ares_nameser.h
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+++ b/include/ares_nameser.h
@@ -0,0 +1,484 @@
+
+#ifndef ARES_NAMESER_H
+#define ARES_NAMESER_H
+
+#include "ares_build.h"
+
+#ifdef CARES_HAVE_ARPA_NAMESER_H
+# include <arpa/nameser.h>
+#endif
+#ifdef CARES_HAVE_ARPA_NAMESER_COMPAT_H
+# include <arpa/nameser_compat.h>
+#endif
+
+/* ============================================================================
+ * arpa/nameser.h may or may not provide ALL of the below defines, so check
+ * each one individually and set if not
+ * ============================================================================
+ */
+
+#ifndef NS_PACKETSZ
+# define NS_PACKETSZ 512 /* maximum packet size */
+#endif
+
+#ifndef NS_MAXDNAME
+# define NS_MAXDNAME 256 /* maximum domain name */
+#endif
+
+#ifndef NS_MAXCDNAME
+# define NS_MAXCDNAME 255 /* maximum compressed domain name */
+#endif
+
+#ifndef NS_MAXLABEL
+# define NS_MAXLABEL 63
+#endif
+
+#ifndef NS_HFIXEDSZ
+# define NS_HFIXEDSZ 12 /* #/bytes of fixed data in header */
+#endif
+
+#ifndef NS_QFIXEDSZ
+# define NS_QFIXEDSZ 4 /* #/bytes of fixed data in query */
+#endif
+
+#ifndef NS_RRFIXEDSZ
+# define NS_RRFIXEDSZ 10 /* #/bytes of fixed data in r record */
+#endif
+
+#ifndef NS_INT16SZ
+# define NS_INT16SZ 2
+#endif
+
+#ifndef NS_INADDRSZ
+# define NS_INADDRSZ 4
+#endif
+
+#ifndef NS_IN6ADDRSZ
+# define NS_IN6ADDRSZ 16
+#endif
+
+#ifndef NS_CMPRSFLGS
+# define NS_CMPRSFLGS 0xc0 /* Flag bits indicating name compression. */
+#endif
+
+#ifndef NS_DEFAULTPORT
+# define NS_DEFAULTPORT 53 /* For both TCP and UDP. */
+#endif
+
+/* ============================================================================
+ * arpa/nameser.h should provide these enumerations always, so if not found,
+ * provide them
+ * ============================================================================
+ */
+#ifndef CARES_HAVE_ARPA_NAMESER_H
+
+typedef enum __ns_class {
+ ns_c_invalid = 0, /* Cookie. */
+ ns_c_in = 1, /* Internet. */
+ ns_c_2 = 2, /* unallocated/unsupported. */
+ ns_c_chaos = 3, /* MIT Chaos-net. */
+ ns_c_hs = 4, /* MIT Hesiod. */
+ /* Query class values which do not appear in resource records */
+ ns_c_none = 254, /* for prereq. sections in update requests */
+ ns_c_any = 255, /* Wildcard match. */
+ ns_c_max = 65536
+} ns_class;
+
+typedef enum __ns_type {
+ ns_t_invalid = 0, /* Cookie. */
+ ns_t_a = 1, /* Host address. */
+ ns_t_ns = 2, /* Authoritative server. */
+ ns_t_md = 3, /* Mail destination. */
+ ns_t_mf = 4, /* Mail forwarder. */
+ ns_t_cname = 5, /* Canonical name. */
+ ns_t_soa = 6, /* Start of authority zone. */
+ ns_t_mb = 7, /* Mailbox domain name. */
+ ns_t_mg = 8, /* Mail group member. */
+ ns_t_mr = 9, /* Mail rename name. */
+ ns_t_null = 10, /* Null resource record. */
+ ns_t_wks = 11, /* Well known service. */
+ ns_t_ptr = 12, /* Domain name pointer. */
+ ns_t_hinfo = 13, /* Host information. */
+ ns_t_minfo = 14, /* Mailbox information. */
+ ns_t_mx = 15, /* Mail routing information. */
+ ns_t_txt = 16, /* Text strings. */
+ ns_t_rp = 17, /* Responsible person. */
+ ns_t_afsdb = 18, /* AFS cell database. */
+ ns_t_x25 = 19, /* X_25 calling address. */
+ ns_t_isdn = 20, /* ISDN calling address. */
+ ns_t_rt = 21, /* Router. */
+ ns_t_nsap = 22, /* NSAP address. */
+ ns_t_nsap_ptr = 23, /* Reverse NSAP lookup (deprecated). */
+ ns_t_sig = 24, /* Security signature. */
+ ns_t_key = 25, /* Security key. */
+ ns_t_px = 26, /* X.400 mail mapping. */
+ ns_t_gpos = 27, /* Geographical position (withdrawn). */
+ ns_t_aaaa = 28, /* Ip6 Address. */
+ ns_t_loc = 29, /* Location Information. */
+ ns_t_nxt = 30, /* Next domain (security). */
+ ns_t_eid = 31, /* Endpoint identifier. */
+ ns_t_nimloc = 32, /* Nimrod Locator. */
+ ns_t_srv = 33, /* Server Selection. */
+ ns_t_atma = 34, /* ATM Address */
+ ns_t_naptr = 35, /* Naming Authority PoinTeR */
+ ns_t_kx = 36, /* Key Exchange */
+ ns_t_cert = 37, /* Certification record */
+ ns_t_a6 = 38, /* IPv6 address (deprecates AAAA) */
+ ns_t_dname = 39, /* Non-terminal DNAME (for IPv6) */
+ ns_t_sink = 40, /* Kitchen sink (experimentatl) */
+ ns_t_opt = 41, /* EDNS0 option (meta-RR) */
+ ns_t_apl = 42, /* Address prefix list (RFC3123) */
+ ns_t_ds = 43, /* Delegation Signer (RFC4034) */
+ ns_t_sshfp = 44, /* SSH Key Fingerprint (RFC4255) */
+ ns_t_rrsig = 46, /* Resource Record Signature (RFC4034) */
+ ns_t_nsec = 47, /* Next Secure (RFC4034) */
+ ns_t_dnskey = 48, /* DNS Public Key (RFC4034) */
+ ns_t_tkey = 249, /* Transaction key */
+ ns_t_tsig = 250, /* Transaction signature. */
+ ns_t_ixfr = 251, /* Incremental zone transfer. */
+ ns_t_axfr = 252, /* Transfer zone of authority. */
+ ns_t_mailb = 253, /* Transfer mailbox records. */
+ ns_t_maila = 254, /* Transfer mail agent records. */
+ ns_t_any = 255, /* Wildcard match. */
+ ns_t_uri = 256, /* Uniform Resource Identifier (RFC7553) */
+ ns_t_caa = 257, /* Certification Authority Authorization. */
+ ns_t_max = 65536
+} ns_type;
+
+typedef enum __ns_opcode {
+ ns_o_query = 0, /* Standard query. */
+ ns_o_iquery = 1, /* Inverse query (deprecated/unsupported). */
+ ns_o_status = 2, /* Name server status query (unsupported). */
+ /* Opcode 3 is undefined/reserved. */
+ ns_o_notify = 4, /* Zone change notification. */
+ ns_o_update = 5, /* Zone update message. */
+ ns_o_max = 6
+} ns_opcode;
+
+typedef enum __ns_rcode {
+ ns_r_noerror = 0, /* No error occurred. */
+ ns_r_formerr = 1, /* Format error. */
+ ns_r_servfail = 2, /* Server failure. */
+ ns_r_nxdomain = 3, /* Name error. */
+ ns_r_notimpl = 4, /* Unimplemented. */
+ ns_r_refused = 5, /* Operation refused. */
+ /* these are for BIND_UPDATE */
+ ns_r_yxdomain = 6, /* Name exists */
+ ns_r_yxrrset = 7, /* RRset exists */
+ ns_r_nxrrset = 8, /* RRset does not exist */
+ ns_r_notauth = 9, /* Not authoritative for zone */
+ ns_r_notzone = 10, /* Zone of record different from zone section */
+ ns_r_max = 11,
+ /* The following are TSIG extended errors */
+ ns_r_badsig = 16,
+ ns_r_badkey = 17,
+ ns_r_badtime = 18
+} ns_rcode;
+
+#endif /* CARES_HAVE_ARPA_NAMESER_H */
+
+
+/* ============================================================================
+ * arpa/nameser_compat.h typically sets these. However on some systems
+ * arpa/nameser.h does, but may not set all of them. Lets conditionally
+ * define each
+ * ============================================================================
+ */
+
+#ifndef PACKETSZ
+# define PACKETSZ NS_PACKETSZ
+#endif
+
+#ifndef MAXDNAME
+# define MAXDNAME NS_MAXDNAME
+#endif
+
+#ifndef MAXCDNAME
+# define MAXCDNAME NS_MAXCDNAME
+#endif
+
+#ifndef MAXLABEL
+# define MAXLABEL NS_MAXLABEL
+#endif
+
+#ifndef HFIXEDSZ
+# define HFIXEDSZ NS_HFIXEDSZ
+#endif
+
+#ifndef QFIXEDSZ
+# define QFIXEDSZ NS_QFIXEDSZ
+#endif
+
+#ifndef RRFIXEDSZ
+# define RRFIXEDSZ NS_RRFIXEDSZ
+#endif
+
+#ifndef INDIR_MASK
+# define INDIR_MASK NS_CMPRSFLGS
+#endif
+
+#ifndef NAMESERVER_PORT
+# define NAMESERVER_PORT NS_DEFAULTPORT
+#endif
+
+
+/* opcodes */
+#ifndef O_QUERY
+# define O_QUERY 0 /* ns_o_query */
+#endif
+#ifndef O_IQUERY
+# define O_IQUERY 1 /* ns_o_iquery */
+#endif
+#ifndef O_STATUS
+# define O_STATUS 2 /* ns_o_status */
+#endif
+#ifndef O_NOTIFY
+# define O_NOTIFY 4 /* ns_o_notify */
+#endif
+#ifndef O_UPDATE
+# define O_UPDATE 5 /* ns_o_update */
+#endif
+
+
+/* response codes */
+#ifndef SERVFAIL
+# define SERVFAIL ns_r_servfail
+#endif
+#ifndef NOTIMP
+# define NOTIMP ns_r_notimpl
+#endif
+#ifndef REFUSED
+# define REFUSED ns_r_refused
+#endif
+#if defined(_WIN32) && !defined(HAVE_ARPA_NAMESER_COMPAT_H) && defined(NOERROR)
+# undef NOERROR /* it seems this is already defined in winerror.h */
+#endif
+#ifndef NOERROR
+# define NOERROR ns_r_noerror
+#endif
+#ifndef FORMERR
+# define FORMERR ns_r_formerr
+#endif
+#ifndef NXDOMAIN
+# define NXDOMAIN ns_r_nxdomain
+#endif
+/* Non-standard response codes, use numeric values */
+#ifndef YXDOMAIN
+# define YXDOMAIN 6 /* ns_r_yxdomain */
+#endif
+#ifndef YXRRSET
+# define YXRRSET 7 /* ns_r_yxrrset */
+#endif
+#ifndef NXRRSET
+# define NXRRSET 8 /* ns_r_nxrrset */
+#endif
+#ifndef NOTAUTH
+# define NOTAUTH 9 /* ns_r_notauth */
+#endif
+#ifndef NOTZONE
+# define NOTZONE 10 /* ns_r_notzone */
+#endif
+#ifndef TSIG_BADSIG
+# define TSIG_BADSIG 16 /* ns_r_badsig */
+#endif
+#ifndef TSIG_BADKEY
+# define TSIG_BADKEY 17 /* ns_r_badkey */
+#endif
+#ifndef TSIG_BADTIME
+# define TSIG_BADTIME 18 /* ns_r_badtime */
+#endif
+
+
+/* classes */
+#ifndef C_IN
+# define C_IN 1 /* ns_c_in */
+#endif
+#ifndef C_CHAOS
+# define C_CHAOS 3 /* ns_c_chaos */
+#endif
+#ifndef C_HS
+# define C_HS 4 /* ns_c_hs */
+#endif
+#ifndef C_NONE
+# define C_NONE 254 /* ns_c_none */
+#endif
+#ifndef C_ANY
+# define C_ANY 255 /* ns_c_any */
+#endif
+
+
+/* types */
+#ifndef T_A
+# define T_A 1 /* ns_t_a */
+#endif
+#ifndef T_NS
+# define T_NS 2 /* ns_t_ns */
+#endif
+#ifndef T_MD
+# define T_MD 3 /* ns_t_md */
+#endif
+#ifndef T_MF
+# define T_MF 4 /* ns_t_mf */
+#endif
+#ifndef T_CNAME
+# define T_CNAME 5 /* ns_t_cname */
+#endif
+#ifndef T_SOA
+# define T_SOA 6 /* ns_t_soa */
+#endif
+#ifndef T_MB
+# define T_MB 7 /* ns_t_mb */
+#endif
+#ifndef T_MG
+# define T_MG 8 /* ns_t_mg */
+#endif
+#ifndef T_MR
+# define T_MR 9 /* ns_t_mr */
+#endif
+#ifndef T_NULL
+# define T_NULL 10 /* ns_t_null */
+#endif
+#ifndef T_WKS
+# define T_WKS 11 /* ns_t_wks */
+#endif
+#ifndef T_PTR
+# define T_PTR 12 /* ns_t_ptr */
+#endif
+#ifndef T_HINFO
+# define T_HINFO 13 /* ns_t_hinfo */
+#endif
+#ifndef T_MINFO
+# define T_MINFO 14 /* ns_t_minfo */
+#endif
+#ifndef T_MX
+# define T_MX 15 /* ns_t_mx */
+#endif
+#ifndef T_TXT
+# define T_TXT 16 /* ns_t_txt */
+#endif
+#ifndef T_RP
+# define T_RP 17 /* ns_t_rp */
+#endif
+#ifndef T_AFSDB
+# define T_AFSDB 18 /* ns_t_afsdb */
+#endif
+#ifndef T_X25
+# define T_X25 19 /* ns_t_x25 */
+#endif
+#ifndef T_ISDN
+# define T_ISDN 20 /* ns_t_isdn */
+#endif
+#ifndef T_RT
+# define T_RT 21 /* ns_t_rt */
+#endif
+#ifndef T_NSAP
+# define T_NSAP 22 /* ns_t_nsap */
+#endif
+#ifndef T_NSAP_PTR
+# define T_NSAP_PTR 23 /* ns_t_nsap_ptr */
+#endif
+#ifndef T_SIG
+# define T_SIG 24 /* ns_t_sig */
+#endif
+#ifndef T_KEY
+# define T_KEY 25 /* ns_t_key */
+#endif
+#ifndef T_PX
+# define T_PX 26 /* ns_t_px */
+#endif
+#ifndef T_GPOS
+# define T_GPOS 27 /* ns_t_gpos */
+#endif
+#ifndef T_AAAA
+# define T_AAAA 28 /* ns_t_aaaa */
+#endif
+#ifndef T_LOC
+# define T_LOC 29 /* ns_t_loc */
+#endif
+#ifndef T_NXT
+# define T_NXT 30 /* ns_t_nxt */
+#endif
+#ifndef T_EID
+# define T_EID 31 /* ns_t_eid */
+#endif
+#ifndef T_NIMLOC
+# define T_NIMLOC 32 /* ns_t_nimloc */
+#endif
+#ifndef T_SRV
+# define T_SRV 33 /* ns_t_srv */
+#endif
+#ifndef T_ATMA
+# define T_ATMA 34 /* ns_t_atma */
+#endif
+#ifndef T_NAPTR
+# define T_NAPTR 35 /* ns_t_naptr */
+#endif
+#ifndef T_KX
+# define T_KX 36 /* ns_t_kx */
+#endif
+#ifndef T_CERT
+# define T_CERT 37 /* ns_t_cert */
+#endif
+#ifndef T_A6
+# define T_A6 38 /* ns_t_a6 */
+#endif
+#ifndef T_DNAME
+# define T_DNAME 39 /* ns_t_dname */
+#endif
+#ifndef T_SINK
+# define T_SINK 40 /* ns_t_sink */
+#endif
+#ifndef T_OPT
+# define T_OPT 41 /* ns_t_opt */
+#endif
+#ifndef T_APL
+# define T_APL 42 /* ns_t_apl */
+#endif
+#ifndef T_DS
+# define T_DS 43 /* ns_t_ds */
+#endif
+#ifndef T_SSHFP
+# define T_SSHFP 44 /* ns_t_sshfp */
+#endif
+#ifndef T_RRSIG
+# define T_RRSIG 46 /* ns_t_rrsig */
+#endif
+#ifndef T_NSEC
+# define T_NSEC 47 /* ns_t_nsec */
+#endif
+#ifndef T_DNSKEY
+# define T_DNSKEY 48 /* ns_t_dnskey */
+#endif
+#ifndef T_TKEY
+# define T_TKEY 249 /* ns_t_tkey */
+#endif
+#ifndef T_TSIG
+# define T_TSIG 250 /* ns_t_tsig */
+#endif
+#ifndef T_IXFR
+# define T_IXFR 251 /* ns_t_ixfr */
+#endif
+#ifndef T_AXFR
+# define T_AXFR 252 /* ns_t_axfr */
+#endif
+#ifndef T_MAILB
+# define T_MAILB 253 /* ns_t_mailb */
+#endif
+#ifndef T_MAILA
+# define T_MAILA 254 /* ns_t_maila */
+#endif
+#ifndef T_ANY
+# define T_ANY 255 /* ns_t_any */
+#endif
+#ifndef T_URI
+# define T_URI 256 /* ns_t_uri */
+#endif
+#ifndef T_CAA
+# define T_CAA 257 /* ns_t_caa */
+#endif
+#ifndef T_MAX
+# define T_MAX 65536 /* ns_t_max */
+#endif
+
+
+#endif /* ARES_NAMESER_H */