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. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 /* 31 * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC") 32 * Copyright (c) 1996-1999 by Internet Software Consortium. 33 * 34 * Permission to use, copy, modify, and distribute this software for any 35 * purpose with or without fee is hereby granted, provided that the above 36 * copyright notice and this permission notice appear in all copies. 37 * 38 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES 39 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 40 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR 41 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 42 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 43 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT 44 * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 45 */ 46 47 /* 48 * $Id: nameser.h,v 1.7.18.2 2008/04/03 23:15:15 marka Exp $ 49 * $FreeBSD: src/include/arpa/nameser.h,v 1.21 2008/12/14 19:39:53 ume Exp $ 50 * $DragonFly: src/include/arpa/nameser.h,v 1.5 2007/04/18 18:39:11 swildner Exp $ 51 */ 52 53 #ifndef _ARPA_NAMESER_H_ 54 #define _ARPA_NAMESER_H_ 55 56 #define BIND_4_COMPAT 57 58 #include <sys/param.h> 59 #include <sys/types.h> 60 #include <sys/cdefs.h> 61 62 /* 63 * Revision information. This is the release date in YYYYMMDD format. 64 * It can change every day so the right thing to do with it is use it 65 * in preprocessor commands such as "#if (__NAMESER > 19931104)". Do not 66 * compare for equality; rather, use it to determine whether your libbind.a 67 * contains a new enough lib/nameser/ to support the feature you need. 68 */ 69 70 #define __NAMESER 19991006 /* New interface version stamp. */ 71 /* 72 * Define constants based on RFC 883, RFC 1034, RFC 1035 73 */ 74 #define NS_PACKETSZ 512 /* default UDP packet size */ 75 #define NS_MAXDNAME 1025 /* maximum domain name */ 76 #define NS_MAXMSG 65535 /* maximum message size */ 77 #define NS_MAXCDNAME 255 /* maximum compressed domain name */ 78 #define NS_MAXLABEL 63 /* maximum length of domain label */ 79 #define NS_HFIXEDSZ 12 /* #/bytes of fixed data in header */ 80 #define NS_QFIXEDSZ 4 /* #/bytes of fixed data in query */ 81 #define NS_RRFIXEDSZ 10 /* #/bytes of fixed data in r record */ 82 #define NS_INT32SZ 4 /* #/bytes of data in a u_int32_t */ 83 #define NS_INT16SZ 2 /* #/bytes of data in a u_int16_t */ 84 #define NS_INT8SZ 1 /* #/bytes of data in a u_int8_t */ 85 #define NS_INADDRSZ 4 /* IPv4 T_A */ 86 #define NS_IN6ADDRSZ 16 /* IPv6 T_AAAA */ 87 #define NS_CMPRSFLGS 0xc0 /* Flag bits indicating name compression. */ 88 #define NS_DEFAULTPORT 53 /* For both TCP and UDP. */ 89 /* 90 * These can be expanded with synonyms, just keep ns_parse.c:ns_parserecord() 91 * in synch with it. 92 */ 93 typedef enum __ns_sect { 94 ns_s_qd = 0, /* Query: Question. */ 95 ns_s_zn = 0, /* Update: Zone. */ 96 ns_s_an = 1, /* Query: Answer. */ 97 ns_s_pr = 1, /* Update: Prerequisites. */ 98 ns_s_ns = 2, /* Query: Name servers. */ 99 ns_s_ud = 2, /* Update: Update. */ 100 ns_s_ar = 3, /* Query|Update: Additional records. */ 101 ns_s_max = 4 102 } ns_sect; 103 104 /* 105 * This is a message handle. It is caller allocated and has no dynamic data. 106 * This structure is intended to be opaque to all but ns_parse.c, thus the 107 * leading _'s on the member names. Use the accessor functions, not the _'s. 108 */ 109 typedef struct __ns_msg { 110 const u_char *_msg, *_eom; 111 u_int16_t _id, _flags, _counts[ns_s_max]; 112 const u_char *_sections[ns_s_max]; 113 ns_sect _sect; 114 int _rrnum; 115 const u_char *_msg_ptr; 116 } ns_msg; 117 118 /* Private data structure - do not use from outside library. */ 119 struct _ns_flagdata { int mask, shift; }; 120 extern struct _ns_flagdata _ns_flagdata[]; 121 122 /* Accessor macros - this is part of the public interface. */ 123 124 #define ns_msg_id(handle) ((handle)._id + 0) 125 #define ns_msg_base(handle) ((handle)._msg + 0) 126 #define ns_msg_end(handle) ((handle)._eom + 0) 127 #define ns_msg_size(handle) ((handle)._eom - (handle)._msg) 128 #define ns_msg_count(handle, section) ((handle)._counts[section] + 0) 129 130 /* 131 * This is a parsed record. It is caller allocated and has no dynamic data. 132 */ 133 typedef struct __ns_rr { 134 char name[NS_MAXDNAME]; 135 u_int16_t type; 136 u_int16_t rr_class; 137 u_int32_t ttl; 138 u_int16_t rdlength; 139 const u_char *rdata; 140 } ns_rr; 141 142 /* Accessor macros - this is part of the public interface. */ 143 #define ns_rr_name(rr) (((rr).name[0] != '\0') ? (rr).name : ".") 144 #define ns_rr_type(rr) ((ns_type)((rr).type + 0)) 145 #define ns_rr_class(rr) ((ns_class)((rr).rr_class + 0)) 146 #define ns_rr_ttl(rr) ((rr).ttl + 0) 147 #define ns_rr_rdlen(rr) ((rr).rdlength + 0) 148 #define ns_rr_rdata(rr) ((rr).rdata + 0) 149 150 /* 151 * These don't have to be in the same order as in the packet flags word, 152 * and they can even overlap in some cases, but they will need to be kept 153 * in synch with ns_parse.c:ns_flagdata[]. 154 */ 155 typedef enum __ns_flag { 156 ns_f_qr, /* Question/Response. */ 157 ns_f_opcode, /* Operation code. */ 158 ns_f_aa, /* Authoritative Answer. */ 159 ns_f_tc, /* Truncation occurred. */ 160 ns_f_rd, /* Recursion Desired. */ 161 ns_f_ra, /* Recursion Available. */ 162 ns_f_z, /* MBZ. */ 163 ns_f_ad, /* Authentic Data (DNSSEC). */ 164 ns_f_cd, /* Checking Disabled (DNSSEC). */ 165 ns_f_rcode, /* Response code. */ 166 ns_f_max 167 } ns_flag; 168 169 /* 170 * Currently defined opcodes. 171 */ 172 typedef enum __ns_opcode { 173 ns_o_query = 0, /* Standard query. */ 174 ns_o_iquery = 1, /* Inverse query (deprecated/unsupported). */ 175 ns_o_status = 2, /* Name server status query (unsupported). */ 176 /* Opcode 3 is undefined/reserved. */ 177 ns_o_notify = 4, /* Zone change notification. */ 178 ns_o_update = 5, /* Zone update message. */ 179 ns_o_max = 6 180 } ns_opcode; 181 182 /* 183 * Currently defined response codes. 184 */ 185 typedef enum __ns_rcode { 186 ns_r_noerror = 0, /* No error occurred. */ 187 ns_r_formerr = 1, /* Format error. */ 188 ns_r_servfail = 2, /* Server failure. */ 189 ns_r_nxdomain = 3, /* Name error. */ 190 ns_r_notimpl = 4, /* Unimplemented. */ 191 ns_r_refused = 5, /* Operation refused. */ 192 /* these are for BIND_UPDATE */ 193 ns_r_yxdomain = 6, /* Name exists */ 194 ns_r_yxrrset = 7, /* RRset exists */ 195 ns_r_nxrrset = 8, /* RRset does not exist */ 196 ns_r_notauth = 9, /* Not authoritative for zone */ 197 ns_r_notzone = 10, /* Zone of record different from zone section */ 198 ns_r_max = 11, 199 /* The following are EDNS extended rcodes */ 200 ns_r_badvers = 16, 201 /* The following are TSIG errors */ 202 ns_r_badsig = 16, 203 ns_r_badkey = 17, 204 ns_r_badtime = 18 205 } ns_rcode; 206 207 /* BIND_UPDATE */ 208 typedef enum __ns_update_operation { 209 ns_uop_delete = 0, 210 ns_uop_add = 1, 211 ns_uop_max = 2 212 } ns_update_operation; 213 214 /* 215 * This structure is used for TSIG authenticated messages 216 */ 217 struct ns_tsig_key { 218 char name[NS_MAXDNAME], alg[NS_MAXDNAME]; 219 unsigned char *data; 220 int len; 221 }; 222 typedef struct ns_tsig_key ns_tsig_key; 223 224 /* 225 * This structure is used for TSIG authenticated TCP messages 226 */ 227 struct ns_tcp_tsig_state { 228 int counter; 229 struct dst_key *key; 230 void *ctx; 231 unsigned char sig[NS_PACKETSZ]; 232 int siglen; 233 }; 234 typedef struct ns_tcp_tsig_state ns_tcp_tsig_state; 235 236 #define NS_TSIG_FUDGE 300 237 #define NS_TSIG_TCP_COUNT 100 238 #define NS_TSIG_ALG_HMAC_MD5 "HMAC-MD5.SIG-ALG.REG.INT" 239 240 #define NS_TSIG_ERROR_NO_TSIG -10 241 #define NS_TSIG_ERROR_NO_SPACE -11 242 #define NS_TSIG_ERROR_FORMERR -12 243 244 /* 245 * Currently defined type values for resources and queries. 246 */ 247 typedef enum __ns_type { 248 ns_t_invalid = 0, /* Cookie. */ 249 ns_t_a = 1, /* Host address. */ 250 ns_t_ns = 2, /* Authoritative server. */ 251 ns_t_md = 3, /* Mail destination. */ 252 ns_t_mf = 4, /* Mail forwarder. */ 253 ns_t_cname = 5, /* Canonical name. */ 254 ns_t_soa = 6, /* Start of authority zone. */ 255 ns_t_mb = 7, /* Mailbox domain name. */ 256 ns_t_mg = 8, /* Mail group member. */ 257 ns_t_mr = 9, /* Mail rename name. */ 258 ns_t_null = 10, /* Null resource record. */ 259 ns_t_wks = 11, /* Well known service. */ 260 ns_t_ptr = 12, /* Domain name pointer. */ 261 ns_t_hinfo = 13, /* Host information. */ 262 ns_t_minfo = 14, /* Mailbox information. */ 263 ns_t_mx = 15, /* Mail routing information. */ 264 ns_t_txt = 16, /* Text strings. */ 265 ns_t_rp = 17, /* Responsible person. */ 266 ns_t_afsdb = 18, /* AFS cell database. */ 267 ns_t_x25 = 19, /* X_25 calling address. */ 268 ns_t_isdn = 20, /* ISDN calling address. */ 269 ns_t_rt = 21, /* Router. */ 270 ns_t_nsap = 22, /* NSAP address. */ 271 ns_t_nsap_ptr = 23, /* Reverse NSAP lookup (deprecated). */ 272 ns_t_sig = 24, /* Security signature. */ 273 ns_t_key = 25, /* Security key. */ 274 ns_t_px = 26, /* X.400 mail mapping. */ 275 ns_t_gpos = 27, /* Geographical position (withdrawn). */ 276 ns_t_aaaa = 28, /* Ip6 Address. */ 277 ns_t_loc = 29, /* Location Information. */ 278 ns_t_nxt = 30, /* Next domain (security). */ 279 ns_t_eid = 31, /* Endpoint identifier. */ 280 ns_t_nimloc = 32, /* Nimrod Locator. */ 281 ns_t_srv = 33, /* Server Selection. */ 282 ns_t_atma = 34, /* ATM Address */ 283 ns_t_naptr = 35, /* Naming Authority PoinTeR */ 284 ns_t_kx = 36, /* Key Exchange */ 285 ns_t_cert = 37, /* Certification record */ 286 ns_t_a6 = 38, /* IPv6 address (deprecates AAAA) */ 287 ns_t_dname = 39, /* Non-terminal DNAME (for IPv6) */ 288 ns_t_sink = 40, /* Kitchen sink (experimentatl) */ 289 ns_t_opt = 41, /* EDNS0 option (meta-RR) */ 290 ns_t_apl = 42, /* Address prefix list (RFC3123) */ 291 ns_t_tkey = 249, /* Transaction key */ 292 ns_t_tsig = 250, /* Transaction signature. */ 293 ns_t_ixfr = 251, /* Incremental zone transfer. */ 294 ns_t_axfr = 252, /* Transfer zone of authority. */ 295 ns_t_mailb = 253, /* Transfer mailbox records. */ 296 ns_t_maila = 254, /* Transfer mail agent records. */ 297 ns_t_any = 255, /* Wildcard match. */ 298 ns_t_zxfr = 256, /* BIND-specific, nonstandard. */ 299 ns_t_max = 65536 300 } ns_type; 301 302 /* Exclusively a QTYPE? (not also an RTYPE) */ 303 #define ns_t_qt_p(t) (ns_t_xfr_p(t) || (t) == ns_t_any || \ 304 (t) == ns_t_mailb || (t) == ns_t_maila) 305 /* Some kind of meta-RR? (not a QTYPE, but also not an RTYPE) */ 306 #define ns_t_mrr_p(t) ((t) == ns_t_tsig || (t) == ns_t_opt) 307 /* Exclusively an RTYPE? (not also a QTYPE or a meta-RR) */ 308 #define ns_t_rr_p(t) (!ns_t_qt_p(t) && !ns_t_mrr_p(t)) 309 #define ns_t_udp_p(t) ((t) != ns_t_axfr && (t) != ns_t_zxfr) 310 #define ns_t_xfr_p(t) ((t) == ns_t_axfr || (t) == ns_t_ixfr || \ 311 (t) == ns_t_zxfr) 312 313 /* 314 * Values for class field 315 */ 316 typedef enum __ns_class { 317 ns_c_invalid = 0, /* Cookie. */ 318 ns_c_in = 1, /* Internet. */ 319 ns_c_2 = 2, /* unallocated/unsupported. */ 320 ns_c_chaos = 3, /* MIT Chaos-net. */ 321 ns_c_hs = 4, /* MIT Hesiod. */ 322 /* Query class values which do not appear in resource records */ 323 ns_c_none = 254, /* for prereq. sections in update requests */ 324 ns_c_any = 255, /* Wildcard match. */ 325 ns_c_max = 65536 326 } ns_class; 327 328 /* DNSSEC constants. */ 329 330 typedef enum __ns_key_types { 331 ns_kt_rsa = 1, /* key type RSA/MD5 */ 332 ns_kt_dh = 2, /* Diffie Hellman */ 333 ns_kt_dsa = 3, /* Digital Signature Standard (MANDATORY) */ 334 ns_kt_private = 254 /* Private key type starts with OID */ 335 } ns_key_types; 336 337 typedef enum __ns_cert_types { 338 cert_t_pkix = 1, /* PKIX (X.509v3) */ 339 cert_t_spki = 2, /* SPKI */ 340 cert_t_pgp = 3, /* PGP */ 341 cert_t_url = 253, /* URL private type */ 342 cert_t_oid = 254 /* OID private type */ 343 } ns_cert_types; 344 345 /* Flags field of the KEY RR rdata. */ 346 #define NS_KEY_TYPEMASK 0xC000 /* Mask for "type" bits */ 347 #define NS_KEY_TYPE_AUTH_CONF 0x0000 /* Key usable for both */ 348 #define NS_KEY_TYPE_CONF_ONLY 0x8000 /* Key usable for confidentiality */ 349 #define NS_KEY_TYPE_AUTH_ONLY 0x4000 /* Key usable for authentication */ 350 #define NS_KEY_TYPE_NO_KEY 0xC000 /* No key usable for either; no key */ 351 /* The type bits can also be interpreted independently, as single bits: */ 352 #define NS_KEY_NO_AUTH 0x8000 /* Key unusable for authentication */ 353 #define NS_KEY_NO_CONF 0x4000 /* Key unusable for confidentiality */ 354 #define NS_KEY_RESERVED2 0x2000 /* Security is *mandatory* if bit=0 */ 355 #define NS_KEY_EXTENDED_FLAGS 0x1000 /* reserved - must be zero */ 356 #define NS_KEY_RESERVED4 0x0800 /* reserved - must be zero */ 357 #define NS_KEY_RESERVED5 0x0400 /* reserved - must be zero */ 358 #define NS_KEY_NAME_TYPE 0x0300 /* these bits determine the type */ 359 #define NS_KEY_NAME_USER 0x0000 /* key is assoc. with user */ 360 #define NS_KEY_NAME_ENTITY 0x0200 /* key is assoc. with entity eg host */ 361 #define NS_KEY_NAME_ZONE 0x0100 /* key is zone key */ 362 #define NS_KEY_NAME_RESERVED 0x0300 /* reserved meaning */ 363 #define NS_KEY_RESERVED8 0x0080 /* reserved - must be zero */ 364 #define NS_KEY_RESERVED9 0x0040 /* reserved - must be zero */ 365 #define NS_KEY_RESERVED10 0x0020 /* reserved - must be zero */ 366 #define NS_KEY_RESERVED11 0x0010 /* reserved - must be zero */ 367 #define NS_KEY_SIGNATORYMASK 0x000F /* key can sign RR's of same name */ 368 #define NS_KEY_RESERVED_BITMASK ( NS_KEY_RESERVED2 | \ 369 NS_KEY_RESERVED4 | \ 370 NS_KEY_RESERVED5 | \ 371 NS_KEY_RESERVED8 | \ 372 NS_KEY_RESERVED9 | \ 373 NS_KEY_RESERVED10 | \ 374 NS_KEY_RESERVED11 ) 375 #define NS_KEY_RESERVED_BITMASK2 0xFFFF /* no bits defined here */ 376 /* The Algorithm field of the KEY and SIG RR's is an integer, {1..254} */ 377 #define NS_ALG_MD5RSA 1 /* MD5 with RSA */ 378 #define NS_ALG_DH 2 /* Diffie Hellman KEY */ 379 #define NS_ALG_DSA 3 /* DSA KEY */ 380 #define NS_ALG_DSS NS_ALG_DSA 381 #define NS_ALG_EXPIRE_ONLY 253 /* No alg, no security */ 382 #define NS_ALG_PRIVATE_OID 254 /* Key begins with OID giving alg */ 383 /* Protocol values */ 384 /* value 0 is reserved */ 385 #define NS_KEY_PROT_TLS 1 386 #define NS_KEY_PROT_EMAIL 2 387 #define NS_KEY_PROT_DNSSEC 3 388 #define NS_KEY_PROT_IPSEC 4 389 #define NS_KEY_PROT_ANY 255 390 391 /* Signatures */ 392 #define NS_MD5RSA_MIN_BITS 512 /* Size of a mod or exp in bits */ 393 #define NS_MD5RSA_MAX_BITS 4096 394 /* Total of binary mod and exp */ 395 #define NS_MD5RSA_MAX_BYTES ((NS_MD5RSA_MAX_BITS+7/8)*2+3) 396 /* Max length of text sig block */ 397 #define NS_MD5RSA_MAX_BASE64 (((NS_MD5RSA_MAX_BYTES+2)/3)*4) 398 #define NS_MD5RSA_MIN_SIZE ((NS_MD5RSA_MIN_BITS+7)/8) 399 #define NS_MD5RSA_MAX_SIZE ((NS_MD5RSA_MAX_BITS+7)/8) 400 401 #define NS_DSA_SIG_SIZE 41 402 #define NS_DSA_MIN_SIZE 213 403 #define NS_DSA_MAX_BYTES 405 404 405 /* Offsets into SIG record rdata to find various values */ 406 #define NS_SIG_TYPE 0 /* Type flags */ 407 #define NS_SIG_ALG 2 /* Algorithm */ 408 #define NS_SIG_LABELS 3 /* How many labels in name */ 409 #define NS_SIG_OTTL 4 /* Original TTL */ 410 #define NS_SIG_EXPIR 8 /* Expiration time */ 411 #define NS_SIG_SIGNED 12 /* Signature time */ 412 #define NS_SIG_FOOT 16 /* Key footprint */ 413 #define NS_SIG_SIGNER 18 /* Domain name of who signed it */ 414 /* How RR types are represented as bit-flags in NXT records */ 415 #define NS_NXT_BITS 8 416 #define NS_NXT_BIT_SET( n,p) (p[(n)/NS_NXT_BITS] |= (0x80>>((n)%NS_NXT_BITS))) 417 #define NS_NXT_BIT_CLEAR(n,p) (p[(n)/NS_NXT_BITS] &= ~(0x80>>((n)%NS_NXT_BITS))) 418 #define NS_NXT_BIT_ISSET(n,p) (p[(n)/NS_NXT_BITS] & (0x80>>((n)%NS_NXT_BITS))) 419 #define NS_NXT_MAX 127 420 421 /* 422 * EDNS0 extended flags and option codes, host order. 423 */ 424 #define NS_OPT_DNSSEC_OK 0x8000U 425 #define NS_OPT_NSID 3 426 427 /* 428 * Inline versions of get/put short/long. Pointer is advanced. 429 */ 430 #define NS_GET16(s, cp) do { \ 431 const u_char *t_cp = (const u_char *)(cp); \ 432 (s) = ((u_int16_t)t_cp[0] << 8) \ 433 | ((u_int16_t)t_cp[1]) \ 434 ; \ 435 (cp) += NS_INT16SZ; \ 436 } while (0) 437 438 #define NS_GET32(l, cp) do { \ 439 const u_char *t_cp = (const u_char *)(cp); \ 440 (l) = ((u_int32_t)t_cp[0] << 24) \ 441 | ((u_int32_t)t_cp[1] << 16) \ 442 | ((u_int32_t)t_cp[2] << 8) \ 443 | ((u_int32_t)t_cp[3]) \ 444 ; \ 445 (cp) += NS_INT32SZ; \ 446 } while (0) 447 448 #define NS_PUT16(s, cp) do { \ 449 u_int16_t t_s = (u_int16_t)(s); \ 450 u_char *t_cp = (u_char *)(cp); \ 451 *t_cp++ = t_s >> 8; \ 452 *t_cp = t_s; \ 453 (cp) += NS_INT16SZ; \ 454 } while (0) 455 456 #define NS_PUT32(l, cp) do { \ 457 u_int32_t t_l = (u_int32_t)(l); \ 458 u_char *t_cp = (u_char *)(cp); \ 459 *t_cp++ = t_l >> 24; \ 460 *t_cp++ = t_l >> 16; \ 461 *t_cp++ = t_l >> 8; \ 462 *t_cp = t_l; \ 463 (cp) += NS_INT32SZ; \ 464 } while (0) 465 466 /* 467 * ANSI C identifier hiding for bind's lib/nameser. 468 */ 469 #define ns_msg_getflag __ns_msg_getflag 470 #define ns_get16 __ns_get16 471 #define ns_get32 __ns_get32 472 #define ns_put16 __ns_put16 473 #define ns_put32 __ns_put32 474 #define ns_initparse __ns_initparse 475 #define ns_skiprr __ns_skiprr 476 #define ns_parserr __ns_parserr 477 #define ns_sprintrr __ns_sprintrr 478 #define ns_sprintrrf __ns_sprintrrf 479 #define ns_format_ttl __ns_format_ttl 480 #define ns_parse_ttl __ns_parse_ttl 481 #if 0 482 #define ns_datetosecs __ns_datetosecs 483 #endif 484 #define ns_name_ntol __ns_name_ntol 485 #define ns_name_ntop __ns_name_ntop 486 #define ns_name_pton __ns_name_pton 487 #define ns_name_unpack __ns_name_unpack 488 #define ns_name_pack __ns_name_pack 489 #define ns_name_compress __ns_name_compress 490 #define ns_name_uncompress __ns_name_uncompress 491 #define ns_name_skip __ns_name_skip 492 #define ns_name_rollback __ns_name_rollback 493 #if 0 494 #define ns_sign __ns_sign 495 #define ns_sign2 __ns_sign2 496 #define ns_sign_tcp __ns_sign_tcp 497 #define ns_sign_tcp2 __ns_sign_tcp2 498 #define ns_sign_tcp_init __ns_sign_tcp_init 499 #define ns_find_tsig __ns_find_tsig 500 #define ns_verify __ns_verify 501 #define ns_verify_tcp __ns_verify_tcp 502 #define ns_verify_tcp_init __ns_verify_tcp_init 503 #endif 504 #define ns_samedomain __ns_samedomain 505 #if 0 506 #define ns_subdomain __ns_subdomain 507 #endif 508 #define ns_makecanon __ns_makecanon 509 #define ns_samename __ns_samename 510 511 __BEGIN_DECLS 512 int ns_msg_getflag(ns_msg, int); 513 u_int ns_get16(const u_char *); 514 u_long ns_get32(const u_char *); 515 void ns_put16(u_int, u_char *); 516 void ns_put32(u_long, u_char *); 517 int ns_initparse(const u_char *, int, ns_msg *); 518 int ns_skiprr(const u_char *, const u_char *, ns_sect, int); 519 int ns_parserr(ns_msg *, ns_sect, int, ns_rr *); 520 int ns_sprintrr(const ns_msg *, const ns_rr *, 521 const char *, const char *, char *, size_t); 522 int ns_sprintrrf(const u_char *, size_t, const char *, 523 ns_class, ns_type, u_long, const u_char *, 524 size_t, const char *, const char *, 525 char *, size_t); 526 int ns_format_ttl(u_long, char *, size_t); 527 int ns_parse_ttl(const char *, u_long *); 528 #if 0 529 u_int32_t ns_datetosecs(const char *cp, int *errp); 530 #endif 531 int ns_name_ntol(const u_char *, u_char *, size_t); 532 int ns_name_ntop(const u_char *, char *, size_t); 533 int ns_name_pton(const char *, u_char *, size_t); 534 int ns_name_unpack(const u_char *, const u_char *, 535 const u_char *, u_char *, size_t); 536 int ns_name_pack(const u_char *, u_char *, int, 537 const u_char **, const u_char **); 538 int ns_name_uncompress(const u_char *, const u_char *, 539 const u_char *, char *, size_t); 540 int ns_name_compress(const char *, u_char *, size_t, 541 const u_char **, const u_char **); 542 int ns_name_skip(const u_char **, const u_char *); 543 void ns_name_rollback(const u_char *, const u_char **, 544 const u_char **); 545 #if 0 546 int ns_sign(u_char *, int *, int, int, void *, 547 const u_char *, int, u_char *, int *, time_t); 548 int ns_sign2(u_char *, int *, int, int, void *, 549 const u_char *, int, u_char *, int *, time_t, 550 u_char **, u_char **); 551 int ns_sign_tcp(u_char *, int *, int, int, 552 ns_tcp_tsig_state *, int); 553 int ns_sign_tcp2(u_char *, int *, int, int, 554 ns_tcp_tsig_state *, int, 555 u_char **, u_char **); 556 int ns_sign_tcp_init(void *, const u_char *, int, 557 ns_tcp_tsig_state *); 558 u_char *ns_find_tsig(u_char *, u_char *); 559 int ns_verify(u_char *, int *, void *, 560 const u_char *, int, u_char *, int *, 561 time_t *, int); 562 int ns_verify_tcp(u_char *, int *, ns_tcp_tsig_state *, int); 563 int ns_verify_tcp_init(void *, const u_char *, int, 564 ns_tcp_tsig_state *); 565 #endif 566 int ns_samedomain(const char *, const char *); 567 #if 0 568 int ns_subdomain(const char *, const char *); 569 #endif 570 int ns_makecanon(const char *, char *, size_t); 571 int ns_samename(const char *, const char *); 572 __END_DECLS 573 574 #ifdef BIND_4_COMPAT 575 #include <arpa/nameser_compat.h> 576 #endif 577 578 #endif /* !_ARPA_NAMESER_H_ */ 579