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