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freebsd/include/arpa/nameser.h

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/*
* Copyright (c) 1983, 1989, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/*
* Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
* Copyright (c) 1996-1999 by Internet Software Consortium.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
* OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/*
* $Id: nameser.h,v 1.7.18.2 2008/04/03 23:15:15 marka Exp $
* $FreeBSD$
*/
#ifndef _ARPA_NAMESER_H_
#define _ARPA_NAMESER_H_
/*! \file */
#define BIND_4_COMPAT
#include <sys/param.h>
#include <sys/types.h>
#include <sys/cdefs.h>
/*%
* Revision information. This is the release date in YYYYMMDD format.
* It can change every day so the right thing to do with it is use it
* in preprocessor commands such as "#if (__NAMESER > 19931104)". Do not
* compare for equality; rather, use it to determine whether your libbind.a
* contains a new enough lib/nameser/ to support the feature you need.
*/
#define __NAMESER 19991006 /*%< New interface version stamp. */
/*
* Define constants based on RFC0883, RFC1034, RFC 1035
*/
#define NS_PACKETSZ 512 /*%< default UDP packet size */
#define NS_MAXDNAME 1025 /*%< maximum domain name */
#define NS_MAXMSG 65535 /*%< maximum message size */
#define NS_MAXCDNAME 255 /*%< maximum compressed domain name */
#define NS_MAXLABEL 63 /*%< maximum length of domain label */
#define NS_HFIXEDSZ 12 /*%< #/bytes of fixed data in header */
#define NS_QFIXEDSZ 4 /*%< #/bytes of fixed data in query */
#define NS_RRFIXEDSZ 10 /*%< #/bytes of fixed data in r record */
#define NS_INT32SZ 4 /*%< #/bytes of data in a u_int32_t */
#define NS_INT16SZ 2 /*%< #/bytes of data in a u_int16_t */
#define NS_INT8SZ 1 /*%< #/bytes of data in a u_int8_t */
#define NS_INADDRSZ 4 /*%< IPv4 T_A */
#define NS_IN6ADDRSZ 16 /*%< IPv6 T_AAAA */
#define NS_CMPRSFLGS 0xc0 /*%< Flag bits indicating name compression. */
#define NS_DEFAULTPORT 53 /*%< For both TCP and UDP. */
/*
* These can be expanded with synonyms, just keep ns_parse.c:ns_parserecord()
* in synch with it.
*/
typedef enum __ns_sect {
ns_s_qd = 0, /*%< Query: Question. */
ns_s_zn = 0, /*%< Update: Zone. */
ns_s_an = 1, /*%< Query: Answer. */
ns_s_pr = 1, /*%< Update: Prerequisites. */
ns_s_ns = 2, /*%< Query: Name servers. */
ns_s_ud = 2, /*%< Update: Update. */
ns_s_ar = 3, /*%< Query|Update: Additional records. */
ns_s_max = 4
} ns_sect;
/*%
* This is a message handle. It is caller allocated and has no dynamic data.
* This structure is intended to be opaque to all but ns_parse.c, thus the
* leading _'s on the member names. Use the accessor functions, not the _'s.
*/
typedef struct __ns_msg {
const u_char *_msg, *_eom;
u_int16_t _id, _flags, _counts[ns_s_max];
const u_char *_sections[ns_s_max];
ns_sect _sect;
int _rrnum;
const u_char *_msg_ptr;
} ns_msg;
/* Private data structure - do not use from outside library. */
struct _ns_flagdata { int mask, shift; };
extern struct _ns_flagdata _ns_flagdata[];
/* Accessor macros - this is part of the public interface. */
#define ns_msg_id(handle) ((handle)._id + 0)
#define ns_msg_base(handle) ((handle)._msg + 0)
#define ns_msg_end(handle) ((handle)._eom + 0)
#define ns_msg_size(handle) ((handle)._eom - (handle)._msg)
#define ns_msg_count(handle, section) ((handle)._counts[section] + 0)
/*%
* This is a parsed record. It is caller allocated and has no dynamic data.
*/
typedef struct __ns_rr {
char name[NS_MAXDNAME];
u_int16_t type;
u_int16_t rr_class;
u_int32_t ttl;
u_int16_t rdlength;
const u_char * rdata;
} ns_rr;
/* Accessor macros - this is part of the public interface. */
#define ns_rr_name(rr) (((rr).name[0] != '\0') ? (rr).name : ".")
#define ns_rr_type(rr) ((ns_type)((rr).type + 0))
#define ns_rr_class(rr) ((ns_class)((rr).rr_class + 0))
#define ns_rr_ttl(rr) ((rr).ttl + 0)
#define ns_rr_rdlen(rr) ((rr).rdlength + 0)
#define ns_rr_rdata(rr) ((rr).rdata + 0)
/*%
* These don't have to be in the same order as in the packet flags word,
* and they can even overlap in some cases, but they will need to be kept
* in synch with ns_parse.c:ns_flagdata[].
*/
typedef enum __ns_flag {
ns_f_qr, /*%< Question/Response. */
ns_f_opcode, /*%< Operation code. */
ns_f_aa, /*%< Authoritative Answer. */
ns_f_tc, /*%< Truncation occurred. */
ns_f_rd, /*%< Recursion Desired. */
ns_f_ra, /*%< Recursion Available. */
ns_f_z, /*%< MBZ. */
ns_f_ad, /*%< Authentic Data (DNSSEC). */
ns_f_cd, /*%< Checking Disabled (DNSSEC). */
ns_f_rcode, /*%< Response code. */
ns_f_max
} ns_flag;
/*%
* Currently defined opcodes.
*/
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;
/*%
* Currently defined response codes.
*/
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 EDNS extended rcodes */
ns_r_badvers = 16,
/* The following are TSIG errors */
ns_r_badsig = 16,
ns_r_badkey = 17,
ns_r_badtime = 18
} ns_rcode;
/* BIND_UPDATE */
typedef enum __ns_update_operation {
ns_uop_delete = 0,
ns_uop_add = 1,
ns_uop_max = 2
} ns_update_operation;
/*%
* This structure is used for TSIG authenticated messages
*/
struct ns_tsig_key {
char name[NS_MAXDNAME], alg[NS_MAXDNAME];
unsigned char *data;
int len;
};
typedef struct ns_tsig_key ns_tsig_key;
/*%
* This structure is used for TSIG authenticated TCP messages
*/
struct ns_tcp_tsig_state {
int counter;
struct dst_key *key;
void *ctx;
unsigned char sig[NS_PACKETSZ];
int siglen;
};
typedef struct ns_tcp_tsig_state ns_tcp_tsig_state;
#define NS_TSIG_FUDGE 300
#define NS_TSIG_TCP_COUNT 100
#define NS_TSIG_ALG_HMAC_MD5 "HMAC-MD5.SIG-ALG.REG.INT"
#define NS_TSIG_ERROR_NO_TSIG -10
#define NS_TSIG_ERROR_NO_SPACE -11
#define NS_TSIG_ERROR_FORMERR -12
/*%
* Currently defined type values for resources and queries.
*/
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_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_zxfr = 256, /*%< BIND-specific, nonstandard. */
ns_t_max = 65536
} ns_type;
/* Exclusively a QTYPE? (not also an RTYPE) */
#define ns_t_qt_p(t) (ns_t_xfr_p(t) || (t) == ns_t_any || \
(t) == ns_t_mailb || (t) == ns_t_maila)
/* Some kind of meta-RR? (not a QTYPE, but also not an RTYPE) */
#define ns_t_mrr_p(t) ((t) == ns_t_tsig || (t) == ns_t_opt)
/* Exclusively an RTYPE? (not also a QTYPE or a meta-RR) */
#define ns_t_rr_p(t) (!ns_t_qt_p(t) && !ns_t_mrr_p(t))
#define ns_t_udp_p(t) ((t) != ns_t_axfr && (t) != ns_t_zxfr)
#define ns_t_xfr_p(t) ((t) == ns_t_axfr || (t) == ns_t_ixfr || \
(t) == ns_t_zxfr)
/*%
* Values for class field
*/
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;
/* DNSSEC constants. */
typedef enum __ns_key_types {
ns_kt_rsa = 1, /*%< key type RSA/MD5 */
ns_kt_dh = 2, /*%< Diffie Hellman */
ns_kt_dsa = 3, /*%< Digital Signature Standard (MANDATORY) */
ns_kt_private = 254 /*%< Private key type starts with OID */
} ns_key_types;
typedef enum __ns_cert_types {
cert_t_pkix = 1, /*%< PKIX (X.509v3) */
cert_t_spki = 2, /*%< SPKI */
cert_t_pgp = 3, /*%< PGP */
cert_t_url = 253, /*%< URL private type */
cert_t_oid = 254 /*%< OID private type */
} ns_cert_types;
/* Flags field of the KEY RR rdata. */
#define NS_KEY_TYPEMASK 0xC000 /*%< Mask for "type" bits */
#define NS_KEY_TYPE_AUTH_CONF 0x0000 /*%< Key usable for both */
#define NS_KEY_TYPE_CONF_ONLY 0x8000 /*%< Key usable for confidentiality */
#define NS_KEY_TYPE_AUTH_ONLY 0x4000 /*%< Key usable for authentication */
#define NS_KEY_TYPE_NO_KEY 0xC000 /*%< No key usable for either; no key */
/* The type bits can also be interpreted independently, as single bits: */
#define NS_KEY_NO_AUTH 0x8000 /*%< Key unusable for authentication */
#define NS_KEY_NO_CONF 0x4000 /*%< Key unusable for confidentiality */
#define NS_KEY_RESERVED2 0x2000 /* Security is *mandatory* if bit=0 */
#define NS_KEY_EXTENDED_FLAGS 0x1000 /*%< reserved - must be zero */
#define NS_KEY_RESERVED4 0x0800 /*%< reserved - must be zero */
#define NS_KEY_RESERVED5 0x0400 /*%< reserved - must be zero */
#define NS_KEY_NAME_TYPE 0x0300 /*%< these bits determine the type */
#define NS_KEY_NAME_USER 0x0000 /*%< key is assoc. with user */
#define NS_KEY_NAME_ENTITY 0x0200 /*%< key is assoc. with entity eg host */
#define NS_KEY_NAME_ZONE 0x0100 /*%< key is zone key */
#define NS_KEY_NAME_RESERVED 0x0300 /*%< reserved meaning */
#define NS_KEY_RESERVED8 0x0080 /*%< reserved - must be zero */
#define NS_KEY_RESERVED9 0x0040 /*%< reserved - must be zero */
#define NS_KEY_RESERVED10 0x0020 /*%< reserved - must be zero */
#define NS_KEY_RESERVED11 0x0010 /*%< reserved - must be zero */
#define NS_KEY_SIGNATORYMASK 0x000F /*%< key can sign RR's of same name */
#define NS_KEY_RESERVED_BITMASK ( NS_KEY_RESERVED2 | \
NS_KEY_RESERVED4 | \
NS_KEY_RESERVED5 | \
NS_KEY_RESERVED8 | \
NS_KEY_RESERVED9 | \
NS_KEY_RESERVED10 | \
NS_KEY_RESERVED11 )
#define NS_KEY_RESERVED_BITMASK2 0xFFFF /*%< no bits defined here */
/* The Algorithm field of the KEY and SIG RR's is an integer, {1..254} */
#define NS_ALG_MD5RSA 1 /*%< MD5 with RSA */
#define NS_ALG_DH 2 /*%< Diffie Hellman KEY */
#define NS_ALG_DSA 3 /*%< DSA KEY */
#define NS_ALG_DSS NS_ALG_DSA
#define NS_ALG_EXPIRE_ONLY 253 /*%< No alg, no security */
#define NS_ALG_PRIVATE_OID 254 /*%< Key begins with OID giving alg */
/* Protocol values */
/* value 0 is reserved */
#define NS_KEY_PROT_TLS 1
#define NS_KEY_PROT_EMAIL 2
#define NS_KEY_PROT_DNSSEC 3
#define NS_KEY_PROT_IPSEC 4
#define NS_KEY_PROT_ANY 255
/* Signatures */
#define NS_MD5RSA_MIN_BITS 512 /*%< Size of a mod or exp in bits */
#define NS_MD5RSA_MAX_BITS 4096
/* Total of binary mod and exp */
#define NS_MD5RSA_MAX_BYTES ((NS_MD5RSA_MAX_BITS+7/8)*2+3)
/* Max length of text sig block */
#define NS_MD5RSA_MAX_BASE64 (((NS_MD5RSA_MAX_BYTES+2)/3)*4)
#define NS_MD5RSA_MIN_SIZE ((NS_MD5RSA_MIN_BITS+7)/8)
#define NS_MD5RSA_MAX_SIZE ((NS_MD5RSA_MAX_BITS+7)/8)
#define NS_DSA_SIG_SIZE 41
#define NS_DSA_MIN_SIZE 213
#define NS_DSA_MAX_BYTES 405
/* Offsets into SIG record rdata to find various values */
#define NS_SIG_TYPE 0 /*%< Type flags */
#define NS_SIG_ALG 2 /*%< Algorithm */
#define NS_SIG_LABELS 3 /*%< How many labels in name */
#define NS_SIG_OTTL 4 /*%< Original TTL */
#define NS_SIG_EXPIR 8 /*%< Expiration time */
#define NS_SIG_SIGNED 12 /*%< Signature time */
#define NS_SIG_FOOT 16 /*%< Key footprint */
#define NS_SIG_SIGNER 18 /*%< Domain name of who signed it */
/* How RR types are represented as bit-flags in NXT records */
#define NS_NXT_BITS 8
#define NS_NXT_BIT_SET( n,p) (p[(n)/NS_NXT_BITS] |= (0x80>>((n)%NS_NXT_BITS)))
#define NS_NXT_BIT_CLEAR(n,p) (p[(n)/NS_NXT_BITS] &= ~(0x80>>((n)%NS_NXT_BITS)))
#define NS_NXT_BIT_ISSET(n,p) (p[(n)/NS_NXT_BITS] & (0x80>>((n)%NS_NXT_BITS)))
#define NS_NXT_MAX 127
/*%
* EDNS0 extended flags and option codes, host order.
*/
#define NS_OPT_DNSSEC_OK 0x8000U
#define NS_OPT_NSID 3
/*%
* Inline versions of get/put short/long. Pointer is advanced.
*/
#define NS_GET16(s, cp) do { \
register const u_char *t_cp = (const u_char *)(cp); \
(s) = ((u_int16_t)t_cp[0] << 8) \
| ((u_int16_t)t_cp[1]) \
; \
(cp) += NS_INT16SZ; \
} while (0)
#define NS_GET32(l, cp) do { \
register const u_char *t_cp = (const u_char *)(cp); \
(l) = ((u_int32_t)t_cp[0] << 24) \
| ((u_int32_t)t_cp[1] << 16) \
| ((u_int32_t)t_cp[2] << 8) \
| ((u_int32_t)t_cp[3]) \
; \
(cp) += NS_INT32SZ; \
} while (0)
#define NS_PUT16(s, cp) do { \
register u_int16_t t_s = (u_int16_t)(s); \
register u_char *t_cp = (u_char *)(cp); \
*t_cp++ = t_s >> 8; \
*t_cp = t_s; \
(cp) += NS_INT16SZ; \
} while (0)
#define NS_PUT32(l, cp) do { \
register u_int32_t t_l = (u_int32_t)(l); \
register u_char *t_cp = (u_char *)(cp); \
*t_cp++ = t_l >> 24; \
*t_cp++ = t_l >> 16; \
*t_cp++ = t_l >> 8; \
*t_cp = t_l; \
(cp) += NS_INT32SZ; \
} while (0)
/*%
* ANSI C identifier hiding for bind's lib/nameser.
*/
#define ns_msg_getflag __ns_msg_getflag
#define ns_get16 __ns_get16
#define ns_get32 __ns_get32
#define ns_put16 __ns_put16
#define ns_put32 __ns_put32
#define ns_initparse __ns_initparse
#define ns_skiprr __ns_skiprr
#define ns_parserr __ns_parserr
#define ns_sprintrr __ns_sprintrr
#define ns_sprintrrf __ns_sprintrrf
#define ns_format_ttl __ns_format_ttl
#define ns_parse_ttl __ns_parse_ttl
#if 0
#define ns_datetosecs __ns_datetosecs
#endif
#define ns_name_ntol __ns_name_ntol
#define ns_name_ntop __ns_name_ntop
#define ns_name_pton __ns_name_pton
#define ns_name_unpack __ns_name_unpack
#define ns_name_pack __ns_name_pack
#define ns_name_compress __ns_name_compress
#define ns_name_uncompress __ns_name_uncompress
#define ns_name_skip __ns_name_skip
#define ns_name_rollback __ns_name_rollback
#if 0
#define ns_sign __ns_sign
#define ns_sign2 __ns_sign2
#define ns_sign_tcp __ns_sign_tcp
#define ns_sign_tcp2 __ns_sign_tcp2
#define ns_sign_tcp_init __ns_sign_tcp_init
#define ns_find_tsig __ns_find_tsig
#define ns_verify __ns_verify
#define ns_verify_tcp __ns_verify_tcp
#define ns_verify_tcp_init __ns_verify_tcp_init
#endif
#define ns_samedomain __ns_samedomain
#if 0
#define ns_subdomain __ns_subdomain
#endif
#define ns_makecanon __ns_makecanon
#define ns_samename __ns_samename
__BEGIN_DECLS
int ns_msg_getflag(ns_msg, int);
u_int ns_get16(const u_char *);
u_long ns_get32(const u_char *);
void ns_put16(u_int, u_char *);
void ns_put32(u_long, u_char *);
int ns_initparse(const u_char *, int, ns_msg *);
int ns_skiprr(const u_char *, const u_char *, ns_sect, int);
int ns_parserr(ns_msg *, ns_sect, int, ns_rr *);
int ns_sprintrr(const ns_msg *, const ns_rr *,
const char *, const char *, char *, size_t);
int ns_sprintrrf(const u_char *, size_t, const char *,
ns_class, ns_type, u_long, const u_char *,
size_t, const char *, const char *,
char *, size_t);
int ns_format_ttl(u_long, char *, size_t);
int ns_parse_ttl(const char *, u_long *);
#if 0
u_int32_t ns_datetosecs(const char *cp, int *errp);
#endif
int ns_name_ntol(const u_char *, u_char *, size_t);
int ns_name_ntop(const u_char *, char *, size_t);
int ns_name_pton(const char *, u_char *, size_t);
int ns_name_unpack(const u_char *, const u_char *,
const u_char *, u_char *, size_t);
int ns_name_pack(const u_char *, u_char *, int,
const u_char **, const u_char **);
int ns_name_uncompress(const u_char *, const u_char *,
const u_char *, char *, size_t);
int ns_name_compress(const char *, u_char *, size_t,
const u_char **, const u_char **);
int ns_name_skip(const u_char **, const u_char *);
void ns_name_rollback(const u_char *, const u_char **,
const u_char **);
#if 0
int ns_sign(u_char *, int *, int, int, void *,
const u_char *, int, u_char *, int *, time_t);
int ns_sign2(u_char *, int *, int, int, void *,
const u_char *, int, u_char *, int *, time_t,
u_char **, u_char **);
int ns_sign_tcp(u_char *, int *, int, int,
ns_tcp_tsig_state *, int);
int ns_sign_tcp2(u_char *, int *, int, int,
ns_tcp_tsig_state *, int,
u_char **, u_char **);
int ns_sign_tcp_init(void *, const u_char *, int,
ns_tcp_tsig_state *);
u_char *ns_find_tsig(u_char *, u_char *);
int ns_verify(u_char *, int *, void *,
const u_char *, int, u_char *, int *,
time_t *, int);
int ns_verify_tcp(u_char *, int *, ns_tcp_tsig_state *, int);
int ns_verify_tcp_init(void *, const u_char *, int,
ns_tcp_tsig_state *);
#endif
int ns_samedomain(const char *, const char *);
#if 0
int ns_subdomain(const char *, const char *);
#endif
int ns_makecanon(const char *, char *, size_t);
int ns_samename(const char *, const char *);
__END_DECLS
#ifdef BIND_4_COMPAT
#include <arpa/nameser_compat.h>
#endif
#endif /* !_ARPA_NAMESER_H_ */
/*! \file */
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