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platform_bionic/libc/private/arpa_nameser.h
The Android Open Source Project 1dc9e472e1 auto import from //depot/cupcake/@135843
2009-03-03 19:28:35 -08:00

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/* $NetBSD: nameser.h,v 1.19 2005/12/26 19:01:47 perry Exp $ */
/*
* 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 1.2.2.4.4.1 2004/03/09 08:33:30 marka Exp
*/
#ifndef _ARPA_NAMESER_H_
#define _ARPA_NAMESER_H_
#define BIND_4_COMPAT
#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 RFC 883, RFC 1034, 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 uint32_t */
#define NS_INT16SZ 2 /* #/bytes of data in a uint16_t */
#define NS_INT8SZ 1 /* #/bytes of data in a uint8_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;
uint16_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 const 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) ((size_t)((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];
uint16_t type;
uint16_t rr_class;
uint32_t ttl;
uint16_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) ((u_long)(rr).ttl + 0)
#define ns_rr_rdlen(rr) ((size_t)(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 (RFC 3123) */
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, host order.
*/
#define NS_OPT_DNSSEC_OK 0x8000U
/*
* Inline versions of get/put short/long. Pointer is advanced.
*/
#define NS_GET16(s, cp) do { \
const u_char *t_cp = (const u_char *)(cp); \
(s) = ((uint16_t)t_cp[0] << 8) \
| ((uint16_t)t_cp[1]) \
; \
(cp) += NS_INT16SZ; \
} while (/*CONSTCOND*/0)
#define NS_GET32(l, cp) do { \
const u_char *t_cp = (const u_char *)(cp); \
(l) = ((uint32_t)t_cp[0] << 24) \
| ((uint32_t)t_cp[1] << 16) \
| ((uint32_t)t_cp[2] << 8) \
| ((uint32_t)t_cp[3]) \
; \
(cp) += NS_INT32SZ; \
} while (/*CONSTCOND*/0)
#define NS_PUT16(s, cp) do { \
uint32_t t_s = (uint32_t)(s); \
u_char *t_cp = (u_char *)(cp); \
*t_cp++ = t_s >> 8; \
*t_cp = t_s; \
(cp) += NS_INT16SZ; \
} while (/*CONSTCOND*/0)
#define NS_PUT32(l, cp) do { \
uint32_t t_l = (uint32_t)(l); \
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 (/*CONSTCOND*/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
#define ns_datetosecs __ns_datetosecs
#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
#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
#define ns_samedomain __ns_samedomain
#define ns_subdomain __ns_subdomain
#define ns_makecanon __ns_makecanon
#define ns_samename __ns_samename
__BEGIN_DECLS
int ns_msg_getflag(ns_msg, int);
uint16_t ns_get16(const u_char *);
uint32_t ns_get32(const u_char *);
void ns_put16(uint16_t, u_char *);
void ns_put32(uint32_t, 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 *);
uint32_t ns_datetosecs(const char *cp, int *errp);
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 **);
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 *);
int ns_samedomain(const char *, const char *);
int ns_subdomain(const char *, const char *);
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_ */
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