nameser.h revision 156960
1/* 2 * Copyright (c) 1983, 1989, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34/* 35 * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC") 36 * Copyright (c) 1996-1999 by Internet Software Consortium. 37 * 38 * Permission to use, copy, modify, and distribute this software for any 39 * purpose with or without fee is hereby granted, provided that the above 40 * copyright notice and this permission notice appear in all copies. 41 * 42 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES 43 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 44 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR 45 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 46 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 47 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT 48 * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 49 */ 50 51/* 52 * $Id: nameser.h,v 1.2.2.4.4.1 2004/03/09 08:33:30 marka Exp $ 53 * $FreeBSD: head/include/arpa/nameser.h 156960 2006-03-21 16:11:11Z ume $ 54 */ 55 56#ifndef _ARPA_NAMESER_H_ 57#define _ARPA_NAMESER_H_ 58 59#define BIND_4_COMPAT 60 61#include <sys/param.h> 62#include <sys/types.h> 63#include <sys/cdefs.h> 64 65/* 66 * Revision information. This is the release date in YYYYMMDD format. 67 * It can change every day so the right thing to do with it is use it 68 * in preprocessor commands such as "#if (__NAMESER > 19931104)". Do not 69 * compare for equality; rather, use it to determine whether your libbind.a 70 * contains a new enough lib/nameser/ to support the feature you need. 71 */ 72 73#define __NAMESER 19991006 /* New interface version stamp. */ 74 75/* 76 * Define constants based on RFC 883, RFC 1034, RFC 1035 77 */ 78#define NS_PACKETSZ 512 /* default UDP packet size */ 79#define NS_MAXDNAME 1025 /* maximum domain name */ 80#define NS_MAXMSG 65535 /* maximum message size */ 81#define NS_MAXCDNAME 255 /* maximum compressed domain name */ 82#define NS_MAXLABEL 63 /* maximum length of domain label */ 83#define NS_HFIXEDSZ 12 /* #/bytes of fixed data in header */ 84#define NS_QFIXEDSZ 4 /* #/bytes of fixed data in query */ 85#define NS_RRFIXEDSZ 10 /* #/bytes of fixed data in r record */ 86#define NS_INT32SZ 4 /* #/bytes of data in a u_int32_t */ 87#define NS_INT16SZ 2 /* #/bytes of data in a u_int16_t */ 88#define NS_INT8SZ 1 /* #/bytes of data in a u_int8_t */ 89#define NS_INADDRSZ 4 /* IPv4 T_A */ 90#define NS_IN6ADDRSZ 16 /* IPv6 T_AAAA */ 91#define NS_CMPRSFLGS 0xc0 /* Flag bits indicating name compression. */ 92#define NS_DEFAULTPORT 53 /* For both TCP and UDP. */ 93 94/* 95 * These can be expanded with synonyms, just keep ns_parse.c:ns_parserecord() 96 * in synch with it. 97 */ 98typedef enum __ns_sect { 99 ns_s_qd = 0, /* Query: Question. */ 100 ns_s_zn = 0, /* Update: Zone. */ 101 ns_s_an = 1, /* Query: Answer. */ 102 ns_s_pr = 1, /* Update: Prerequisites. */ 103 ns_s_ns = 2, /* Query: Name servers. */ 104 ns_s_ud = 2, /* Update: Update. */ 105 ns_s_ar = 3, /* Query|Update: Additional records. */ 106 ns_s_max = 4 107} ns_sect; 108 109/* 110 * This is a message handle. It is caller allocated and has no dynamic data. 111 * This structure is intended to be opaque to all but ns_parse.c, thus the 112 * leading _'s on the member names. Use the accessor functions, not the _'s. 113 */ 114typedef struct __ns_msg { 115 const u_char *_msg, *_eom; 116 u_int16_t _id, _flags, _counts[ns_s_max]; 117 const u_char *_sections[ns_s_max]; 118 ns_sect _sect; 119 int _rrnum; 120 const u_char *_msg_ptr; 121} ns_msg; 122 123/* Private data structure - do not use from outside library. */ 124struct _ns_flagdata { int mask, shift; }; 125extern struct _ns_flagdata _ns_flagdata[]; 126 127/* Accessor macros - this is part of the public interface. */ 128 129#define ns_msg_id(handle) ((handle)._id + 0) 130#define ns_msg_base(handle) ((handle)._msg + 0) 131#define ns_msg_end(handle) ((handle)._eom + 0) 132#define ns_msg_size(handle) ((handle)._eom - (handle)._msg) 133#define ns_msg_count(handle, section) ((handle)._counts[section] + 0) 134 135/* 136 * This is a parsed record. It is caller allocated and has no dynamic data. 137 */ 138typedef struct __ns_rr { 139 char name[NS_MAXDNAME]; 140 u_int16_t type; 141 u_int16_t rr_class; 142 u_int32_t ttl; 143 u_int16_t rdlength; 144 const u_char * rdata; 145} ns_rr; 146 147/* Accessor macros - this is part of the public interface. */ 148#define ns_rr_name(rr) (((rr).name[0] != '\0') ? (rr).name : ".") 149#define ns_rr_type(rr) ((ns_type)((rr).type + 0)) 150#define ns_rr_class(rr) ((ns_class)((rr).rr_class + 0)) 151#define ns_rr_ttl(rr) ((rr).ttl + 0) 152#define ns_rr_rdlen(rr) ((rr).rdlength + 0) 153#define ns_rr_rdata(rr) ((rr).rdata + 0) 154 155/* 156 * These don't have to be in the same order as in the packet flags word, 157 * and they can even overlap in some cases, but they will need to be kept 158 * in synch with ns_parse.c:ns_flagdata[]. 159 */ 160typedef enum __ns_flag { 161 ns_f_qr, /* Question/Response. */ 162 ns_f_opcode, /* Operation code. */ 163 ns_f_aa, /* Authoritative Answer. */ 164 ns_f_tc, /* Truncation occurred. */ 165 ns_f_rd, /* Recursion Desired. */ 166 ns_f_ra, /* Recursion Available. */ 167 ns_f_z, /* MBZ. */ 168 ns_f_ad, /* Authentic Data (DNSSEC). */ 169 ns_f_cd, /* Checking Disabled (DNSSEC). */ 170 ns_f_rcode, /* Response code. */ 171 ns_f_max 172} ns_flag; 173 174/* 175 * Currently defined opcodes. 176 */ 177typedef enum __ns_opcode { 178 ns_o_query = 0, /* Standard query. */ 179 ns_o_iquery = 1, /* Inverse query (deprecated/unsupported). */ 180 ns_o_status = 2, /* Name server status query (unsupported). */ 181 /* Opcode 3 is undefined/reserved. */ 182 ns_o_notify = 4, /* Zone change notification. */ 183 ns_o_update = 5, /* Zone update message. */ 184 ns_o_max = 6 185} ns_opcode; 186 187/* 188 * Currently defined response codes. 189 */ 190typedef enum __ns_rcode { 191 ns_r_noerror = 0, /* No error occurred. */ 192 ns_r_formerr = 1, /* Format error. */ 193 ns_r_servfail = 2, /* Server failure. */ 194 ns_r_nxdomain = 3, /* Name error. */ 195 ns_r_notimpl = 4, /* Unimplemented. */ 196 ns_r_refused = 5, /* Operation refused. */ 197 /* these are for BIND_UPDATE */ 198 ns_r_yxdomain = 6, /* Name exists */ 199 ns_r_yxrrset = 7, /* RRset exists */ 200 ns_r_nxrrset = 8, /* RRset does not exist */ 201 ns_r_notauth = 9, /* Not authoritative for zone */ 202 ns_r_notzone = 10, /* Zone of record different from zone section */ 203 ns_r_max = 11, 204 /* The following are EDNS extended rcodes */ 205 ns_r_badvers = 16, 206 /* The following are TSIG errors */ 207 ns_r_badsig = 16, 208 ns_r_badkey = 17, 209 ns_r_badtime = 18 210} ns_rcode; 211 212/* BIND_UPDATE */ 213typedef enum __ns_update_operation { 214 ns_uop_delete = 0, 215 ns_uop_add = 1, 216 ns_uop_max = 2 217} ns_update_operation; 218 219/* 220 * This structure is used for TSIG authenticated messages 221 */ 222struct ns_tsig_key { 223 char name[NS_MAXDNAME], alg[NS_MAXDNAME]; 224 unsigned char *data; 225 int len; 226}; 227typedef struct ns_tsig_key ns_tsig_key; 228 229/* 230 * This structure is used for TSIG authenticated TCP messages 231 */ 232struct ns_tcp_tsig_state { 233 int counter; 234 struct dst_key *key; 235 void *ctx; 236 unsigned char sig[NS_PACKETSZ]; 237 int siglen; 238}; 239typedef struct ns_tcp_tsig_state ns_tcp_tsig_state; 240 241#define NS_TSIG_FUDGE 300 242#define NS_TSIG_TCP_COUNT 100 243#define NS_TSIG_ALG_HMAC_MD5 "HMAC-MD5.SIG-ALG.REG.INT" 244 245#define NS_TSIG_ERROR_NO_TSIG -10 246#define NS_TSIG_ERROR_NO_SPACE -11 247#define NS_TSIG_ERROR_FORMERR -12 248 249/* 250 * Currently defined type values for resources and queries. 251 */ 252typedef enum __ns_type { 253 ns_t_invalid = 0, /* Cookie. */ 254 ns_t_a = 1, /* Host address. */ 255 ns_t_ns = 2, /* Authoritative server. */ 256 ns_t_md = 3, /* Mail destination. */ 257 ns_t_mf = 4, /* Mail forwarder. */ 258 ns_t_cname = 5, /* Canonical name. */ 259 ns_t_soa = 6, /* Start of authority zone. */ 260 ns_t_mb = 7, /* Mailbox domain name. */ 261 ns_t_mg = 8, /* Mail group member. */ 262 ns_t_mr = 9, /* Mail rename name. */ 263 ns_t_null = 10, /* Null resource record. */ 264 ns_t_wks = 11, /* Well known service. */ 265 ns_t_ptr = 12, /* Domain name pointer. */ 266 ns_t_hinfo = 13, /* Host information. */ 267 ns_t_minfo = 14, /* Mailbox information. */ 268 ns_t_mx = 15, /* Mail routing information. */ 269 ns_t_txt = 16, /* Text strings. */ 270 ns_t_rp = 17, /* Responsible person. */ 271 ns_t_afsdb = 18, /* AFS cell database. */ 272 ns_t_x25 = 19, /* X_25 calling address. */ 273 ns_t_isdn = 20, /* ISDN calling address. */ 274 ns_t_rt = 21, /* Router. */ 275 ns_t_nsap = 22, /* NSAP address. */ 276 ns_t_nsap_ptr = 23, /* Reverse NSAP lookup (deprecated). */ 277 ns_t_sig = 24, /* Security signature. */ 278 ns_t_key = 25, /* Security key. */ 279 ns_t_px = 26, /* X.400 mail mapping. */ 280 ns_t_gpos = 27, /* Geographical position (withdrawn). */ 281 ns_t_aaaa = 28, /* Ip6 Address. */ 282 ns_t_loc = 29, /* Location Information. */ 283 ns_t_nxt = 30, /* Next domain (security). */ 284 ns_t_eid = 31, /* Endpoint identifier. */ 285 ns_t_nimloc = 32, /* Nimrod Locator. */ 286 ns_t_srv = 33, /* Server Selection. */ 287 ns_t_atma = 34, /* ATM Address */ 288 ns_t_naptr = 35, /* Naming Authority PoinTeR */ 289 ns_t_kx = 36, /* Key Exchange */ 290 ns_t_cert = 37, /* Certification record */ 291 ns_t_a6 = 38, /* IPv6 address (deprecates AAAA) */ 292 ns_t_dname = 39, /* Non-terminal DNAME (for IPv6) */ 293 ns_t_sink = 40, /* Kitchen sink (experimentatl) */ 294 ns_t_opt = 41, /* EDNS0 option (meta-RR) */ 295 ns_t_apl = 42, /* Address prefix list (RFC 3123) */ 296 ns_t_tkey = 249, /* Transaction key */ 297 ns_t_tsig = 250, /* Transaction signature. */ 298 ns_t_ixfr = 251, /* Incremental zone transfer. */ 299 ns_t_axfr = 252, /* Transfer zone of authority. */ 300 ns_t_mailb = 253, /* Transfer mailbox records. */ 301 ns_t_maila = 254, /* Transfer mail agent records. */ 302 ns_t_any = 255, /* Wildcard match. */ 303 ns_t_zxfr = 256, /* BIND-specific, nonstandard. */ 304 ns_t_max = 65536 305} ns_type; 306 307/* Exclusively a QTYPE? (not also an RTYPE) */ 308#define ns_t_qt_p(t) (ns_t_xfr_p(t) || (t) == ns_t_any || \ 309 (t) == ns_t_mailb || (t) == ns_t_maila) 310/* Some kind of meta-RR? (not a QTYPE, but also not an RTYPE) */ 311#define ns_t_mrr_p(t) ((t) == ns_t_tsig || (t) == ns_t_opt) 312/* Exclusively an RTYPE? (not also a QTYPE or a meta-RR) */ 313#define ns_t_rr_p(t) (!ns_t_qt_p(t) && !ns_t_mrr_p(t)) 314#define ns_t_udp_p(t) ((t) != ns_t_axfr && (t) != ns_t_zxfr) 315#define ns_t_xfr_p(t) ((t) == ns_t_axfr || (t) == ns_t_ixfr || \ 316 (t) == ns_t_zxfr) 317 318/* 319 * Values for class field 320 */ 321typedef enum __ns_class { 322 ns_c_invalid = 0, /* Cookie. */ 323 ns_c_in = 1, /* Internet. */ 324 ns_c_2 = 2, /* unallocated/unsupported. */ 325 ns_c_chaos = 3, /* MIT Chaos-net. */ 326 ns_c_hs = 4, /* MIT Hesiod. */ 327 /* Query class values which do not appear in resource records */ 328 ns_c_none = 254, /* for prereq. sections in update requests */ 329 ns_c_any = 255, /* Wildcard match. */ 330 ns_c_max = 65536 331} ns_class; 332 333/* DNSSEC constants. */ 334 335typedef enum __ns_key_types { 336 ns_kt_rsa = 1, /* key type RSA/MD5 */ 337 ns_kt_dh = 2, /* Diffie Hellman */ 338 ns_kt_dsa = 3, /* Digital Signature Standard (MANDATORY) */ 339 ns_kt_private = 254 /* Private key type starts with OID */ 340} ns_key_types; 341 342typedef enum __ns_cert_types { 343 cert_t_pkix = 1, /* PKIX (X.509v3) */ 344 cert_t_spki = 2, /* SPKI */ 345 cert_t_pgp = 3, /* PGP */ 346 cert_t_url = 253, /* URL private type */ 347 cert_t_oid = 254 /* OID private type */ 348} ns_cert_types; 349 350/* Flags field of the KEY RR rdata. */ 351#define NS_KEY_TYPEMASK 0xC000 /* Mask for "type" bits */ 352#define NS_KEY_TYPE_AUTH_CONF 0x0000 /* Key usable for both */ 353#define NS_KEY_TYPE_CONF_ONLY 0x8000 /* Key usable for confidentiality */ 354#define NS_KEY_TYPE_AUTH_ONLY 0x4000 /* Key usable for authentication */ 355#define NS_KEY_TYPE_NO_KEY 0xC000 /* No key usable for either; no key */ 356/* The type bits can also be interpreted independently, as single bits: */ 357#define NS_KEY_NO_AUTH 0x8000 /* Key unusable for authentication */ 358#define NS_KEY_NO_CONF 0x4000 /* Key unusable for confidentiality */ 359#define NS_KEY_RESERVED2 0x2000 /* Security is *mandatory* if bit=0 */ 360#define NS_KEY_EXTENDED_FLAGS 0x1000 /* reserved - must be zero */ 361#define NS_KEY_RESERVED4 0x0800 /* reserved - must be zero */ 362#define NS_KEY_RESERVED5 0x0400 /* reserved - must be zero */ 363#define NS_KEY_NAME_TYPE 0x0300 /* these bits determine the type */ 364#define NS_KEY_NAME_USER 0x0000 /* key is assoc. with user */ 365#define NS_KEY_NAME_ENTITY 0x0200 /* key is assoc. with entity eg host */ 366#define NS_KEY_NAME_ZONE 0x0100 /* key is zone key */ 367#define NS_KEY_NAME_RESERVED 0x0300 /* reserved meaning */ 368#define NS_KEY_RESERVED8 0x0080 /* reserved - must be zero */ 369#define NS_KEY_RESERVED9 0x0040 /* reserved - must be zero */ 370#define NS_KEY_RESERVED10 0x0020 /* reserved - must be zero */ 371#define NS_KEY_RESERVED11 0x0010 /* reserved - must be zero */ 372#define NS_KEY_SIGNATORYMASK 0x000F /* key can sign RR's of same name */ 373#define NS_KEY_RESERVED_BITMASK ( NS_KEY_RESERVED2 | \ 374 NS_KEY_RESERVED4 | \ 375 NS_KEY_RESERVED5 | \ 376 NS_KEY_RESERVED8 | \ 377 NS_KEY_RESERVED9 | \ 378 NS_KEY_RESERVED10 | \ 379 NS_KEY_RESERVED11 ) 380#define NS_KEY_RESERVED_BITMASK2 0xFFFF /* no bits defined here */ 381 382/* The Algorithm field of the KEY and SIG RR's is an integer, {1..254} */ 383#define NS_ALG_MD5RSA 1 /* MD5 with RSA */ 384#define NS_ALG_DH 2 /* Diffie Hellman KEY */ 385#define NS_ALG_DSA 3 /* DSA KEY */ 386#define NS_ALG_DSS NS_ALG_DSA 387#define NS_ALG_EXPIRE_ONLY 253 /* No alg, no security */ 388#define NS_ALG_PRIVATE_OID 254 /* Key begins with OID giving alg */ 389 390/* Protocol values */ 391/* value 0 is reserved */ 392#define NS_KEY_PROT_TLS 1 393#define NS_KEY_PROT_EMAIL 2 394#define NS_KEY_PROT_DNSSEC 3 395#define NS_KEY_PROT_IPSEC 4 396#define NS_KEY_PROT_ANY 255 397 398/* Signatures */ 399#define NS_MD5RSA_MIN_BITS 512 /* Size of a mod or exp in bits */ 400#define NS_MD5RSA_MAX_BITS 4096 401 /* Total of binary mod and exp */ 402#define NS_MD5RSA_MAX_BYTES ((NS_MD5RSA_MAX_BITS+7/8)*2+3) 403 /* Max length of text sig block */ 404#define NS_MD5RSA_MAX_BASE64 (((NS_MD5RSA_MAX_BYTES+2)/3)*4) 405#define NS_MD5RSA_MIN_SIZE ((NS_MD5RSA_MIN_BITS+7)/8) 406#define NS_MD5RSA_MAX_SIZE ((NS_MD5RSA_MAX_BITS+7)/8) 407 408#define NS_DSA_SIG_SIZE 41 409#define NS_DSA_MIN_SIZE 213 410#define NS_DSA_MAX_BYTES 405 411 412/* Offsets into SIG record rdata to find various values */ 413#define NS_SIG_TYPE 0 /* Type flags */ 414#define NS_SIG_ALG 2 /* Algorithm */ 415#define NS_SIG_LABELS 3 /* How many labels in name */ 416#define NS_SIG_OTTL 4 /* Original TTL */ 417#define NS_SIG_EXPIR 8 /* Expiration time */ 418#define NS_SIG_SIGNED 12 /* Signature time */ 419#define NS_SIG_FOOT 16 /* Key footprint */ 420#define NS_SIG_SIGNER 18 /* Domain name of who signed it */ 421 422/* How RR types are represented as bit-flags in NXT records */ 423#define NS_NXT_BITS 8 424#define NS_NXT_BIT_SET( n,p) (p[(n)/NS_NXT_BITS] |= (0x80>>((n)%NS_NXT_BITS))) 425#define NS_NXT_BIT_CLEAR(n,p) (p[(n)/NS_NXT_BITS] &= ~(0x80>>((n)%NS_NXT_BITS))) 426#define NS_NXT_BIT_ISSET(n,p) (p[(n)/NS_NXT_BITS] & (0x80>>((n)%NS_NXT_BITS))) 427#define NS_NXT_MAX 127 428 429/* 430 * EDNS0 extended flags, host order. 431 */ 432#define NS_OPT_DNSSEC_OK 0x8000U 433 434/* 435 * Inline versions of get/put short/long. Pointer is advanced. 436 */ 437#define NS_GET16(s, cp) do { \ 438 register const u_char *t_cp = (const u_char *)(cp); \ 439 (s) = ((u_int16_t)t_cp[0] << 8) \ 440 | ((u_int16_t)t_cp[1]) \ 441 ; \ 442 (cp) += NS_INT16SZ; \ 443} while (0) 444 445#define NS_GET32(l, cp) do { \ 446 register const u_char *t_cp = (const u_char *)(cp); \ 447 (l) = ((u_int32_t)t_cp[0] << 24) \ 448 | ((u_int32_t)t_cp[1] << 16) \ 449 | ((u_int32_t)t_cp[2] << 8) \ 450 | ((u_int32_t)t_cp[3]) \ 451 ; \ 452 (cp) += NS_INT32SZ; \ 453} while (0) 454 455#define NS_PUT16(s, cp) do { \ 456 register u_int16_t t_s = (u_int16_t)(s); \ 457 register u_char *t_cp = (u_char *)(cp); \ 458 *t_cp++ = t_s >> 8; \ 459 *t_cp = t_s; \ 460 (cp) += NS_INT16SZ; \ 461} while (0) 462 463#define NS_PUT32(l, cp) do { \ 464 register u_int32_t t_l = (u_int32_t)(l); \ 465 register u_char *t_cp = (u_char *)(cp); \ 466 *t_cp++ = t_l >> 24; \ 467 *t_cp++ = t_l >> 16; \ 468 *t_cp++ = t_l >> 8; \ 469 *t_cp = t_l; \ 470 (cp) += NS_INT32SZ; \ 471} while (0) 472 473/* 474 * ANSI C identifier hiding for bind's lib/nameser. 475 */ 476#define ns_msg_getflag __ns_msg_getflag 477#define ns_get16 __ns_get16 478#define ns_get32 __ns_get32 479#define ns_put16 __ns_put16 480#define ns_put32 __ns_put32 481#define ns_initparse __ns_initparse 482#define ns_skiprr __ns_skiprr 483#define ns_parserr __ns_parserr 484#define ns_sprintrr __ns_sprintrr 485#define ns_sprintrrf __ns_sprintrrf 486#define ns_format_ttl __ns_format_ttl 487#define ns_parse_ttl __ns_parse_ttl 488#if 0 489#define ns_datetosecs __ns_datetosecs 490#endif 491#define ns_name_ntol __ns_name_ntol 492#define ns_name_ntop __ns_name_ntop 493#define ns_name_pton __ns_name_pton 494#define ns_name_unpack __ns_name_unpack 495#define ns_name_pack __ns_name_pack 496#define ns_name_compress __ns_name_compress 497#define ns_name_uncompress __ns_name_uncompress 498#define ns_name_skip __ns_name_skip 499#define ns_name_rollback __ns_name_rollback 500#if 0 501#define ns_sign __ns_sign 502#define ns_sign2 __ns_sign2 503#define ns_sign_tcp __ns_sign_tcp 504#define ns_sign_tcp2 __ns_sign_tcp2 505#define ns_sign_tcp_init __ns_sign_tcp_init 506#define ns_find_tsig __ns_find_tsig 507#define ns_verify __ns_verify 508#define ns_verify_tcp __ns_verify_tcp 509#define ns_verify_tcp_init __ns_verify_tcp_init 510#define ns_samedomain __ns_samedomain 511#define ns_subdomain __ns_subdomain 512#endif 513#define ns_makecanon __ns_makecanon 514#define ns_samename __ns_samename 515 516__BEGIN_DECLS 517int ns_msg_getflag(ns_msg, int); 518u_int ns_get16(const u_char *); 519u_long ns_get32(const u_char *); 520void ns_put16(u_int, u_char *); 521void ns_put32(u_long, u_char *); 522int ns_initparse(const u_char *, int, ns_msg *); 523int ns_skiprr(const u_char *, const u_char *, ns_sect, int); 524int ns_parserr(ns_msg *, ns_sect, int, ns_rr *); 525int ns_sprintrr(const ns_msg *, const ns_rr *, 526 const char *, const char *, char *, size_t); 527int ns_sprintrrf(const u_char *, size_t, const char *, 528 ns_class, ns_type, u_long, const u_char *, 529 size_t, const char *, const char *, 530 char *, size_t); 531int ns_format_ttl(u_long, char *, size_t); 532int ns_parse_ttl(const char *, u_long *); 533#if 0 534u_int32_t ns_datetosecs(const char *cp, int *errp); 535#endif 536int ns_name_ntol(const u_char *, u_char *, size_t); 537int ns_name_ntop(const u_char *, char *, size_t); 538int ns_name_pton(const char *, u_char *, size_t); 539int ns_name_unpack(const u_char *, const u_char *, 540 const u_char *, u_char *, size_t); 541int ns_name_pack(const u_char *, u_char *, int, 542 const u_char **, const u_char **); 543int ns_name_uncompress(const u_char *, const u_char *, 544 const u_char *, char *, size_t); 545int ns_name_compress(const char *, u_char *, size_t, 546 const u_char **, const u_char **); 547int ns_name_skip(const u_char **, const u_char *); 548void ns_name_rollback(const u_char *, const u_char **, 549 const u_char **); 550#if 0 551int ns_sign(u_char *, int *, int, int, void *, 552 const u_char *, int, u_char *, int *, time_t); 553int ns_sign2(u_char *, int *, int, int, void *, 554 const u_char *, int, u_char *, int *, time_t, 555 u_char **, u_char **); 556int ns_sign_tcp(u_char *, int *, int, int, 557 ns_tcp_tsig_state *, int); 558int ns_sign_tcp2(u_char *, int *, int, int, 559 ns_tcp_tsig_state *, int, 560 u_char **, u_char **); 561int ns_sign_tcp_init(void *, const u_char *, int, 562 ns_tcp_tsig_state *); 563u_char *ns_find_tsig(u_char *, u_char *); 564int ns_verify(u_char *, int *, void *, 565 const u_char *, int, u_char *, int *, 566 time_t *, int); 567int ns_verify_tcp(u_char *, int *, ns_tcp_tsig_state *, int); 568int ns_verify_tcp_init(void *, const u_char *, int, 569 ns_tcp_tsig_state *); 570int ns_samedomain(const char *, const char *); 571int ns_subdomain(const char *, const char *); 572#endif 573int ns_makecanon(const char *, char *, size_t); 574int ns_samename(const char *, const char *); 575__END_DECLS 576 577#ifdef BIND_4_COMPAT 578#include <arpa/nameser_compat.h> 579#endif 580 581#endif /* !_ARPA_NAMESER_H_ */ 582