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 * $FreeBSD$ 50 */ 51 52 #ifndef _ARPA_NAMESER_H_ 53 #define _ARPA_NAMESER_H_ 54 55 /*! \file */ 56 57 #define BIND_4_COMPAT 58 59 #include <sys/param.h> 60 #include <sys/types.h> 61 #include <sys/cdefs.h> 62 63 /*% 64 * Revision information. This is the release date in YYYYMMDD format. 65 * It can change every day so the right thing to do with it is use it 66 * in preprocessor commands such as "#if (__NAMESER > 19931104)". Do not 67 * compare for equality; rather, use it to determine whether your libbind.a 68 * contains a new enough lib/nameser/ to support the feature you need. 69 */ 70 71 #define __NAMESER 19991006 /*%< New interface version stamp. */ 72 /* 73 * Define constants based on RFC0883, RFC1034, RFC 1035 74 */ 75 #define NS_PACKETSZ 512 /*%< default UDP packet size */ 76 #define NS_MAXDNAME 1025 /*%< maximum domain name */ 77 #define NS_MAXMSG 65535 /*%< maximum message size */ 78 #define NS_MAXCDNAME 255 /*%< maximum compressed domain name */ 79 #define NS_MAXLABEL 63 /*%< maximum length of domain label */ 80 #define NS_HFIXEDSZ 12 /*%< #/bytes of fixed data in header */ 81 #define NS_QFIXEDSZ 4 /*%< #/bytes of fixed data in query */ 82 #define NS_RRFIXEDSZ 10 /*%< #/bytes of fixed data in r record */ 83 #define NS_INT32SZ 4 /*%< #/bytes of data in a u_int32_t */ 84 #define NS_INT16SZ 2 /*%< #/bytes of data in a u_int16_t */ 85 #define NS_INT8SZ 1 /*%< #/bytes of data in a u_int8_t */ 86 #define NS_INADDRSZ 4 /*%< IPv4 T_A */ 87 #define NS_IN6ADDRSZ 16 /*%< IPv6 T_AAAA */ 88 #define NS_CMPRSFLGS 0xc0 /*%< Flag bits indicating name compression. */ 89 #define NS_DEFAULTPORT 53 /*%< For both TCP and UDP. */ 90 /* 91 * These can be expanded with synonyms, just keep ns_parse.c:ns_parserecord() 92 * in synch with it. 93 */ 94 typedef enum __ns_sect { 95 ns_s_qd = 0, /*%< Query: Question. */ 96 ns_s_zn = 0, /*%< Update: Zone. */ 97 ns_s_an = 1, /*%< Query: Answer. */ 98 ns_s_pr = 1, /*%< Update: Prerequisites. */ 99 ns_s_ns = 2, /*%< Query: Name servers. */ 100 ns_s_ud = 2, /*%< Update: Update. */ 101 ns_s_ar = 3, /*%< Query|Update: Additional records. */ 102 ns_s_max = 4 103 } ns_sect; 104 105 /*% 106 * This is a message handle. It is caller allocated and has no dynamic data. 107 * This structure is intended to be opaque to all but ns_parse.c, thus the 108 * leading _'s on the member names. Use the accessor functions, not the _'s. 109 */ 110 typedef struct __ns_msg { 111 const u_char *_msg, *_eom; 112 u_int16_t _id, _flags, _counts[ns_s_max]; 113 const u_char *_sections[ns_s_max]; 114 ns_sect _sect; 115 int _rrnum; 116 const u_char *_msg_ptr; 117 } ns_msg; 118 119 /* Private data structure - do not use from outside library. */ 120 struct _ns_flagdata { int mask, shift; }; 121 extern struct _ns_flagdata _ns_flagdata[]; 122 123 /* Accessor macros - this is part of the public interface. */ 124 125 #define ns_msg_id(handle) ((handle)._id + 0) 126 #define ns_msg_base(handle) ((handle)._msg + 0) 127 #define ns_msg_end(handle) ((handle)._eom + 0) 128 #define ns_msg_size(handle) ((handle)._eom - (handle)._msg) 129 #define ns_msg_count(handle, section) ((handle)._counts[section] + 0) 130 131 /*% 132 * This is a parsed record. It is caller allocated and has no dynamic data. 133 */ 134 typedef struct __ns_rr { 135 char name[NS_MAXDNAME]; 136 u_int16_t type; 137 u_int16_t rr_class; 138 u_int32_t ttl; 139 u_int16_t rdlength; 140 const u_char * rdata; 141 } ns_rr; 142 143 /* Accessor macros - this is part of the public interface. */ 144 #define ns_rr_name(rr) (((rr).name[0] != '\0') ? (rr).name : ".") 145 #define ns_rr_type(rr) ((ns_type)((rr).type + 0)) 146 #define ns_rr_class(rr) ((ns_class)((rr).rr_class + 0)) 147 #define ns_rr_ttl(rr) ((rr).ttl + 0) 148 #define ns_rr_rdlen(rr) ((rr).rdlength + 0) 149 #define ns_rr_rdata(rr) ((rr).rdata + 0) 150 151 /*% 152 * These don't have to be in the same order as in the packet flags word, 153 * and they can even overlap in some cases, but they will need to be kept 154 * in synch with ns_parse.c:ns_flagdata[]. 155 */ 156 typedef enum __ns_flag { 157 ns_f_qr, /*%< Question/Response. */ 158 ns_f_opcode, /*%< Operation code. */ 159 ns_f_aa, /*%< Authoritative Answer. */ 160 ns_f_tc, /*%< Truncation occurred. */ 161 ns_f_rd, /*%< Recursion Desired. */ 162 ns_f_ra, /*%< Recursion Available. */ 163 ns_f_z, /*%< MBZ. */ 164 ns_f_ad, /*%< Authentic Data (DNSSEC). */ 165 ns_f_cd, /*%< Checking Disabled (DNSSEC). */ 166 ns_f_rcode, /*%< Response code. */ 167 ns_f_max 168 } ns_flag; 169 170 /*% 171 * Currently defined opcodes. 172 */ 173 typedef enum __ns_opcode { 174 ns_o_query = 0, /*%< Standard query. */ 175 ns_o_iquery = 1, /*%< Inverse query (deprecated/unsupported). */ 176 ns_o_status = 2, /*%< Name server status query (unsupported). */ 177 /* Opcode 3 is undefined/reserved. */ 178 ns_o_notify = 4, /*%< Zone change notification. */ 179 ns_o_update = 5, /*%< Zone update message. */ 180 ns_o_max = 6 181 } ns_opcode; 182 183 /*% 184 * Currently defined response codes. 185 */ 186 typedef enum __ns_rcode { 187 ns_r_noerror = 0, /*%< No error occurred. */ 188 ns_r_formerr = 1, /*%< Format error. */ 189 ns_r_servfail = 2, /*%< Server failure. */ 190 ns_r_nxdomain = 3, /*%< Name error. */ 191 ns_r_notimpl = 4, /*%< Unimplemented. */ 192 ns_r_refused = 5, /*%< Operation refused. */ 193 /* these are for BIND_UPDATE */ 194 ns_r_yxdomain = 6, /*%< Name exists */ 195 ns_r_yxrrset = 7, /*%< RRset exists */ 196 ns_r_nxrrset = 8, /*%< RRset does not exist */ 197 ns_r_notauth = 9, /*%< Not authoritative for zone */ 198 ns_r_notzone = 10, /*%< Zone of record different from zone section */ 199 ns_r_max = 11, 200 /* The following are EDNS extended rcodes */ 201 ns_r_badvers = 16, 202 /* The following are TSIG errors */ 203 ns_r_badsig = 16, 204 ns_r_badkey = 17, 205 ns_r_badtime = 18 206 } ns_rcode; 207 208 /* BIND_UPDATE */ 209 typedef enum __ns_update_operation { 210 ns_uop_delete = 0, 211 ns_uop_add = 1, 212 ns_uop_max = 2 213 } ns_update_operation; 214 215 /*% 216 * This structure is used for TSIG authenticated messages 217 */ 218 struct ns_tsig_key { 219 char name[NS_MAXDNAME], alg[NS_MAXDNAME]; 220 unsigned char *data; 221 int len; 222 }; 223 typedef struct ns_tsig_key ns_tsig_key; 224 225 /*% 226 * This structure is used for TSIG authenticated TCP messages 227 */ 228 struct ns_tcp_tsig_state { 229 int counter; 230 struct dst_key *key; 231 void *ctx; 232 unsigned char sig[NS_PACKETSZ]; 233 int siglen; 234 }; 235 typedef struct ns_tcp_tsig_state ns_tcp_tsig_state; 236 237 #define NS_TSIG_FUDGE 300 238 #define NS_TSIG_TCP_COUNT 100 239 #define NS_TSIG_ALG_HMAC_MD5 "HMAC-MD5.SIG-ALG.REG.INT" 240 241 #define NS_TSIG_ERROR_NO_TSIG -10 242 #define NS_TSIG_ERROR_NO_SPACE -11 243 #define NS_TSIG_ERROR_FORMERR -12 244 245 /*% 246 * Currently defined type values for resources and queries. 247 */ 248 typedef enum __ns_type { 249 ns_t_invalid = 0, /*%< Cookie. */ 250 ns_t_a = 1, /*%< Host address. */ 251 ns_t_ns = 2, /*%< Authoritative server. */ 252 ns_t_md = 3, /*%< Mail destination. */ 253 ns_t_mf = 4, /*%< Mail forwarder. */ 254 ns_t_cname = 5, /*%< Canonical name. */ 255 ns_t_soa = 6, /*%< Start of authority zone. */ 256 ns_t_mb = 7, /*%< Mailbox domain name. */ 257 ns_t_mg = 8, /*%< Mail group member. */ 258 ns_t_mr = 9, /*%< Mail rename name. */ 259 ns_t_null = 10, /*%< Null resource record. */ 260 ns_t_wks = 11, /*%< Well known service. */ 261 ns_t_ptr = 12, /*%< Domain name pointer. */ 262 ns_t_hinfo = 13, /*%< Host information. */ 263 ns_t_minfo = 14, /*%< Mailbox information. */ 264 ns_t_mx = 15, /*%< Mail routing information. */ 265 ns_t_txt = 16, /*%< Text strings. */ 266 ns_t_rp = 17, /*%< Responsible person. */ 267 ns_t_afsdb = 18, /*%< AFS cell database. */ 268 ns_t_x25 = 19, /*%< X_25 calling address. */ 269 ns_t_isdn = 20, /*%< ISDN calling address. */ 270 ns_t_rt = 21, /*%< Router. */ 271 ns_t_nsap = 22, /*%< NSAP address. */ 272 ns_t_nsap_ptr = 23, /*%< Reverse NSAP lookup (deprecated). */ 273 ns_t_sig = 24, /*%< Security signature. */ 274 ns_t_key = 25, /*%< Security key. */ 275 ns_t_px = 26, /*%< X.400 mail mapping. */ 276 ns_t_gpos = 27, /*%< Geographical position (withdrawn). */ 277 ns_t_aaaa = 28, /*%< Ip6 Address. */ 278 ns_t_loc = 29, /*%< Location Information. */ 279 ns_t_nxt = 30, /*%< Next domain (security). */ 280 ns_t_eid = 31, /*%< Endpoint identifier. */ 281 ns_t_nimloc = 32, /*%< Nimrod Locator. */ 282 ns_t_srv = 33, /*%< Server Selection. */ 283 ns_t_atma = 34, /*%< ATM Address */ 284 ns_t_naptr = 35, /*%< Naming Authority PoinTeR */ 285 ns_t_kx = 36, /*%< Key Exchange */ 286 ns_t_cert = 37, /*%< Certification record */ 287 ns_t_a6 = 38, /*%< IPv6 address (deprecates AAAA) */ 288 ns_t_dname = 39, /*%< Non-terminal DNAME (for IPv6) */ 289 ns_t_sink = 40, /*%< Kitchen sink (experimentatl) */ 290 ns_t_opt = 41, /*%< EDNS0 option (meta-RR) */ 291 ns_t_apl = 42, /*%< Address prefix list (RFC3123) */ 292 ns_t_tkey = 249, /*%< Transaction key */ 293 ns_t_tsig = 250, /*%< Transaction signature. */ 294 ns_t_ixfr = 251, /*%< Incremental zone transfer. */ 295 ns_t_axfr = 252, /*%< Transfer zone of authority. */ 296 ns_t_mailb = 253, /*%< Transfer mailbox records. */ 297 ns_t_maila = 254, /*%< Transfer mail agent records. */ 298 ns_t_any = 255, /*%< Wildcard match. */ 299 ns_t_zxfr = 256, /*%< BIND-specific, nonstandard. */ 300 ns_t_max = 65536 301 } ns_type; 302 303 /* Exclusively a QTYPE? (not also an RTYPE) */ 304 #define ns_t_qt_p(t) (ns_t_xfr_p(t) || (t) == ns_t_any || \ 305 (t) == ns_t_mailb || (t) == ns_t_maila) 306 /* Some kind of meta-RR? (not a QTYPE, but also not an RTYPE) */ 307 #define ns_t_mrr_p(t) ((t) == ns_t_tsig || (t) == ns_t_opt) 308 /* Exclusively an RTYPE? (not also a QTYPE or a meta-RR) */ 309 #define ns_t_rr_p(t) (!ns_t_qt_p(t) && !ns_t_mrr_p(t)) 310 #define ns_t_udp_p(t) ((t) != ns_t_axfr && (t) != ns_t_zxfr) 311 #define ns_t_xfr_p(t) ((t) == ns_t_axfr || (t) == ns_t_ixfr || \ 312 (t) == ns_t_zxfr) 313 314 /*% 315 * Values for class field 316 */ 317 typedef enum __ns_class { 318 ns_c_invalid = 0, /*%< Cookie. */ 319 ns_c_in = 1, /*%< Internet. */ 320 ns_c_2 = 2, /*%< unallocated/unsupported. */ 321 ns_c_chaos = 3, /*%< MIT Chaos-net. */ 322 ns_c_hs = 4, /*%< MIT Hesiod. */ 323 /* Query class values which do not appear in resource records */ 324 ns_c_none = 254, /*%< for prereq. sections in update requests */ 325 ns_c_any = 255, /*%< Wildcard match. */ 326 ns_c_max = 65536 327 } ns_class; 328 329 /* DNSSEC constants. */ 330 331 typedef enum __ns_key_types { 332 ns_kt_rsa = 1, /*%< key type RSA/MD5 */ 333 ns_kt_dh = 2, /*%< Diffie Hellman */ 334 ns_kt_dsa = 3, /*%< Digital Signature Standard (MANDATORY) */ 335 ns_kt_private = 254 /*%< Private key type starts with OID */ 336 } ns_key_types; 337 338 typedef enum __ns_cert_types { 339 cert_t_pkix = 1, /*%< PKIX (X.509v3) */ 340 cert_t_spki = 2, /*%< SPKI */ 341 cert_t_pgp = 3, /*%< PGP */ 342 cert_t_url = 253, /*%< URL private type */ 343 cert_t_oid = 254 /*%< OID private type */ 344 } ns_cert_types; 345 346 /* Flags field of the KEY RR rdata. */ 347 #define NS_KEY_TYPEMASK 0xC000 /*%< Mask for "type" bits */ 348 #define NS_KEY_TYPE_AUTH_CONF 0x0000 /*%< Key usable for both */ 349 #define NS_KEY_TYPE_CONF_ONLY 0x8000 /*%< Key usable for confidentiality */ 350 #define NS_KEY_TYPE_AUTH_ONLY 0x4000 /*%< Key usable for authentication */ 351 #define NS_KEY_TYPE_NO_KEY 0xC000 /*%< No key usable for either; no key */ 352 /* The type bits can also be interpreted independently, as single bits: */ 353 #define NS_KEY_NO_AUTH 0x8000 /*%< Key unusable for authentication */ 354 #define NS_KEY_NO_CONF 0x4000 /*%< Key unusable for confidentiality */ 355 #define NS_KEY_RESERVED2 0x2000 /* Security is *mandatory* if bit=0 */ 356 #define NS_KEY_EXTENDED_FLAGS 0x1000 /*%< reserved - must be zero */ 357 #define NS_KEY_RESERVED4 0x0800 /*%< reserved - must be zero */ 358 #define NS_KEY_RESERVED5 0x0400 /*%< reserved - must be zero */ 359 #define NS_KEY_NAME_TYPE 0x0300 /*%< these bits determine the type */ 360 #define NS_KEY_NAME_USER 0x0000 /*%< key is assoc. with user */ 361 #define NS_KEY_NAME_ENTITY 0x0200 /*%< key is assoc. with entity eg host */ 362 #define NS_KEY_NAME_ZONE 0x0100 /*%< key is zone key */ 363 #define NS_KEY_NAME_RESERVED 0x0300 /*%< reserved meaning */ 364 #define NS_KEY_RESERVED8 0x0080 /*%< reserved - must be zero */ 365 #define NS_KEY_RESERVED9 0x0040 /*%< reserved - must be zero */ 366 #define NS_KEY_RESERVED10 0x0020 /*%< reserved - must be zero */ 367 #define NS_KEY_RESERVED11 0x0010 /*%< reserved - must be zero */ 368 #define NS_KEY_SIGNATORYMASK 0x000F /*%< key can sign RR's of same name */ 369 #define NS_KEY_RESERVED_BITMASK ( NS_KEY_RESERVED2 | \ 370 NS_KEY_RESERVED4 | \ 371 NS_KEY_RESERVED5 | \ 372 NS_KEY_RESERVED8 | \ 373 NS_KEY_RESERVED9 | \ 374 NS_KEY_RESERVED10 | \ 375 NS_KEY_RESERVED11 ) 376 #define NS_KEY_RESERVED_BITMASK2 0xFFFF /*%< no bits defined here */ 377 /* The Algorithm field of the KEY and SIG RR's is an integer, {1..254} */ 378 #define NS_ALG_MD5RSA 1 /*%< MD5 with RSA */ 379 #define NS_ALG_DH 2 /*%< Diffie Hellman KEY */ 380 #define NS_ALG_DSA 3 /*%< DSA KEY */ 381 #define NS_ALG_DSS NS_ALG_DSA 382 #define NS_ALG_EXPIRE_ONLY 253 /*%< No alg, no security */ 383 #define NS_ALG_PRIVATE_OID 254 /*%< Key begins with OID giving alg */ 384 /* Protocol values */ 385 /* value 0 is reserved */ 386 #define NS_KEY_PROT_TLS 1 387 #define NS_KEY_PROT_EMAIL 2 388 #define NS_KEY_PROT_DNSSEC 3 389 #define NS_KEY_PROT_IPSEC 4 390 #define NS_KEY_PROT_ANY 255 391 392 /* Signatures */ 393 #define NS_MD5RSA_MIN_BITS 512 /*%< Size of a mod or exp in bits */ 394 #define NS_MD5RSA_MAX_BITS 4096 395 /* Total of binary mod and exp */ 396 #define NS_MD5RSA_MAX_BYTES ((NS_MD5RSA_MAX_BITS+7/8)*2+3) 397 /* Max length of text sig block */ 398 #define NS_MD5RSA_MAX_BASE64 (((NS_MD5RSA_MAX_BYTES+2)/3)*4) 399 #define NS_MD5RSA_MIN_SIZE ((NS_MD5RSA_MIN_BITS+7)/8) 400 #define NS_MD5RSA_MAX_SIZE ((NS_MD5RSA_MAX_BITS+7)/8) 401 402 #define NS_DSA_SIG_SIZE 41 403 #define NS_DSA_MIN_SIZE 213 404 #define NS_DSA_MAX_BYTES 405 405 406 /* Offsets into SIG record rdata to find various values */ 407 #define NS_SIG_TYPE 0 /*%< Type flags */ 408 #define NS_SIG_ALG 2 /*%< Algorithm */ 409 #define NS_SIG_LABELS 3 /*%< How many labels in name */ 410 #define NS_SIG_OTTL 4 /*%< Original TTL */ 411 #define NS_SIG_EXPIR 8 /*%< Expiration time */ 412 #define NS_SIG_SIGNED 12 /*%< Signature time */ 413 #define NS_SIG_FOOT 16 /*%< Key footprint */ 414 #define NS_SIG_SIGNER 18 /*%< Domain name of who signed it */ 415 /* How RR types are represented as bit-flags in NXT records */ 416 #define NS_NXT_BITS 8 417 #define NS_NXT_BIT_SET( n,p) (p[(n)/NS_NXT_BITS] |= (0x80>>((n)%NS_NXT_BITS))) 418 #define NS_NXT_BIT_CLEAR(n,p) (p[(n)/NS_NXT_BITS] &= ~(0x80>>((n)%NS_NXT_BITS))) 419 #define NS_NXT_BIT_ISSET(n,p) (p[(n)/NS_NXT_BITS] & (0x80>>((n)%NS_NXT_BITS))) 420 #define NS_NXT_MAX 127 421 422 /*% 423 * EDNS0 extended flags and option codes, host order. 424 */ 425 #define NS_OPT_DNSSEC_OK 0x8000U 426 #define NS_OPT_NSID 3 427 428 /*% 429 * Inline versions of get/put short/long. Pointer is advanced. 430 */ 431 #define NS_GET16(s, cp) do { \ 432 register const u_char *t_cp = (const u_char *)(cp); \ 433 (s) = ((u_int16_t)t_cp[0] << 8) \ 434 | ((u_int16_t)t_cp[1]) \ 435 ; \ 436 (cp) += NS_INT16SZ; \ 437 } while (0) 438 439 #define NS_GET32(l, cp) do { \ 440 register const u_char *t_cp = (const u_char *)(cp); \ 441 (l) = ((u_int32_t)t_cp[0] << 24) \ 442 | ((u_int32_t)t_cp[1] << 16) \ 443 | ((u_int32_t)t_cp[2] << 8) \ 444 | ((u_int32_t)t_cp[3]) \ 445 ; \ 446 (cp) += NS_INT32SZ; \ 447 } while (0) 448 449 #define NS_PUT16(s, cp) do { \ 450 register u_int16_t t_s = (u_int16_t)(s); \ 451 register u_char *t_cp = (u_char *)(cp); \ 452 *t_cp++ = t_s >> 8; \ 453 *t_cp = t_s; \ 454 (cp) += NS_INT16SZ; \ 455 } while (0) 456 457 #define NS_PUT32(l, cp) do { \ 458 register u_int32_t t_l = (u_int32_t)(l); \ 459 register u_char *t_cp = (u_char *)(cp); \ 460 *t_cp++ = t_l >> 24; \ 461 *t_cp++ = t_l >> 16; \ 462 *t_cp++ = t_l >> 8; \ 463 *t_cp = t_l; \ 464 (cp) += NS_INT32SZ; \ 465 } while (0) 466 467 /*% 468 * ANSI C identifier hiding for bind's lib/nameser. 469 */ 470 #define ns_msg_getflag __ns_msg_getflag 471 #define ns_get16 __ns_get16 472 #define ns_get32 __ns_get32 473 #define ns_put16 __ns_put16 474 #define ns_put32 __ns_put32 475 #define ns_initparse __ns_initparse 476 #define ns_skiprr __ns_skiprr 477 #define ns_parserr __ns_parserr 478 #define ns_sprintrr __ns_sprintrr 479 #define ns_sprintrrf __ns_sprintrrf 480 #define ns_format_ttl __ns_format_ttl 481 #define ns_parse_ttl __ns_parse_ttl 482 #if 0 483 #define ns_datetosecs __ns_datetosecs 484 #endif 485 #define ns_name_ntol __ns_name_ntol 486 #define ns_name_ntop __ns_name_ntop 487 #define ns_name_pton __ns_name_pton 488 #define ns_name_unpack __ns_name_unpack 489 #define ns_name_pack __ns_name_pack 490 #define ns_name_compress __ns_name_compress 491 #define ns_name_uncompress __ns_name_uncompress 492 #define ns_name_skip __ns_name_skip 493 #define ns_name_rollback __ns_name_rollback 494 #if 0 495 #define ns_sign __ns_sign 496 #define ns_sign2 __ns_sign2 497 #define ns_sign_tcp __ns_sign_tcp 498 #define ns_sign_tcp2 __ns_sign_tcp2 499 #define ns_sign_tcp_init __ns_sign_tcp_init 500 #define ns_find_tsig __ns_find_tsig 501 #define ns_verify __ns_verify 502 #define ns_verify_tcp __ns_verify_tcp 503 #define ns_verify_tcp_init __ns_verify_tcp_init 504 #endif 505 #define ns_samedomain __ns_samedomain 506 #if 0 507 #define ns_subdomain __ns_subdomain 508 #endif 509 #define ns_makecanon __ns_makecanon 510 #define ns_samename __ns_samename 511 512 __BEGIN_DECLS 513 int ns_msg_getflag(ns_msg, int); 514 u_int ns_get16(const u_char *); 515 u_long ns_get32(const u_char *); 516 void ns_put16(u_int, u_char *); 517 void ns_put32(u_long, u_char *); 518 int ns_initparse(const u_char *, int, ns_msg *); 519 int ns_skiprr(const u_char *, const u_char *, ns_sect, int); 520 int ns_parserr(ns_msg *, ns_sect, int, ns_rr *); 521 int ns_sprintrr(const ns_msg *, const ns_rr *, 522 const char *, const char *, char *, size_t); 523 int ns_sprintrrf(const u_char *, size_t, const char *, 524 ns_class, ns_type, u_long, const u_char *, 525 size_t, const char *, const char *, 526 char *, size_t); 527 int ns_format_ttl(u_long, char *, size_t); 528 int ns_parse_ttl(const char *, u_long *); 529 #if 0 530 u_int32_t ns_datetosecs(const char *cp, int *errp); 531 #endif 532 int ns_name_ntol(const u_char *, u_char *, size_t); 533 int ns_name_ntop(const u_char *, char *, size_t); 534 int ns_name_pton(const char *, u_char *, size_t); 535 int ns_name_unpack(const u_char *, const u_char *, 536 const u_char *, u_char *, size_t); 537 int ns_name_pack(const u_char *, u_char *, int, 538 const u_char **, const u_char **); 539 int ns_name_uncompress(const u_char *, const u_char *, 540 const u_char *, char *, size_t); 541 int ns_name_compress(const char *, u_char *, size_t, 542 const u_char **, const u_char **); 543 int ns_name_skip(const u_char **, const u_char *); 544 void ns_name_rollback(const u_char *, const u_char **, 545 const u_char **); 546 #if 0 547 int ns_sign(u_char *, int *, int, int, void *, 548 const u_char *, int, u_char *, int *, time_t); 549 int ns_sign2(u_char *, int *, int, int, void *, 550 const u_char *, int, u_char *, int *, time_t, 551 u_char **, u_char **); 552 int ns_sign_tcp(u_char *, int *, int, int, 553 ns_tcp_tsig_state *, int); 554 int ns_sign_tcp2(u_char *, int *, int, int, 555 ns_tcp_tsig_state *, int, 556 u_char **, u_char **); 557 int ns_sign_tcp_init(void *, const u_char *, int, 558 ns_tcp_tsig_state *); 559 u_char *ns_find_tsig(u_char *, u_char *); 560 int ns_verify(u_char *, int *, void *, 561 const u_char *, int, u_char *, int *, 562 time_t *, int); 563 int ns_verify_tcp(u_char *, int *, ns_tcp_tsig_state *, int); 564 int ns_verify_tcp_init(void *, const u_char *, int, 565 ns_tcp_tsig_state *); 566 #endif 567 int ns_samedomain(const char *, const char *); 568 #if 0 569 int ns_subdomain(const char *, const char *); 570 #endif 571 int ns_makecanon(const char *, char *, size_t); 572 int ns_samename(const char *, const char *); 573 __END_DECLS 574 575 #ifdef BIND_4_COMPAT 576 #include <arpa/nameser_compat.h> 577 #endif 578 579 #endif /* !_ARPA_NAMESER_H_ */ 580 /*! \file */ 581