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 * 4. 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 INTERNET SOFTWARE CONSORTIUM DISCLAIMS 39 * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES 40 * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE 41 * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL 42 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR 43 * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS 44 * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS 45 * SOFTWARE. 46 */ 47 48 /* 49 * $BINDId: nameser.h,v 8.37 2000/03/30 21:16:49 vixie Exp $ 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 #if (!defined(BSD)) || (BSD < 199306) 61 # include <sys/bitypes.h> 62 #else 63 # include <sys/types.h> 64 #endif 65 #include <sys/cdefs.h> 66 67 /*% 68 * Revision information. This is the release date in YYYYMMDD format. 69 * It can change every day so the right thing to do with it is use it 70 * in preprocessor commands such as "#if (__NAMESER > 19931104)". Do not 71 * compare for equality; rather, use it to determine whether your libbind.a 72 * contains a new enough lib/nameser/ to support the feature you need. 73 */ 74 75 #define __NAMESER 19991006 /*%< New interface version stamp. */ 76 /* 77 * Define constants based on RFC 883, RFC 1034, RFC 1035 78 */ 79 #define NS_PACKETSZ 512 /*%< default UDP packet size */ 80 #define NS_MAXDNAME 1025 /*%< maximum domain name */ 81 #define NS_MAXMSG 65535 /*%< maximum message size */ 82 #define NS_MAXCDNAME 255 /*%< maximum compressed domain name */ 83 #define NS_MAXLABEL 63 /*%< maximum length of domain label */ 84 #define NS_HFIXEDSZ 12 /*%< #/bytes of fixed data in header */ 85 #define NS_QFIXEDSZ 4 /*%< #/bytes of fixed data in query */ 86 #define NS_RRFIXEDSZ 10 /*%< #/bytes of fixed data in r record */ 87 #define NS_INT32SZ 4 /*%< #/bytes of data in a u_int32_t */ 88 #define NS_INT16SZ 2 /*%< #/bytes of data in a u_int16_t */ 89 #define NS_INT8SZ 1 /*%< #/bytes of data in a u_int8_t */ 90 #define NS_INADDRSZ 4 /*%< IPv4 T_A */ 91 #define NS_IN6ADDRSZ 16 /*%< IPv6 T_AAAA */ 92 #define NS_CMPRSFLGS 0xc0 /*%< Flag bits indicating name compression. */ 93 #define NS_DEFAULTPORT 53 /*%< For both TCP and UDP. */ 94 /* 95 * These can be expanded with synonyms, just keep ns_parse.c:ns_parserecord() 96 * in synch with it. 97 */ 98 typedef 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 */ 114 typedef 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. */ 124 struct _ns_flagdata { int mask, shift; }; 125 extern const 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 */ 138 typedef 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 */ 160 typedef 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 */ 177 typedef 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 */ 190 typedef 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 */ 213 typedef 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 */ 222 struct ns_tsig_key { 223 char name[NS_MAXDNAME], alg[NS_MAXDNAME]; 224 unsigned char *data; 225 int len; 226 }; 227 typedef struct ns_tsig_key ns_tsig_key; 228 229 /*% 230 * This structure is used for TSIG authenticated TCP messages 231 */ 232 struct 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 }; 239 typedef 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 */ 252 typedef 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 (deprecated, use ns_t_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 (RFC3123) */ 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 */ 321 typedef 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. */ 334 335 typedef 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; 341 342 typedef 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 /* The Algorithm field of the KEY and SIG RR's is an integer, {1..254} */ 382 #define NS_ALG_MD5RSA 1 /*%< MD5 with RSA */ 383 #define NS_ALG_DH 2 /*%< Diffie Hellman KEY */ 384 #define NS_ALG_DSA 3 /*%< DSA KEY */ 385 #define NS_ALG_DSS NS_ALG_DSA 386 #define NS_ALG_EXPIRE_ONLY 253 /*%< No alg, no security */ 387 #define NS_ALG_PRIVATE_OID 254 /*%< Key begins with OID giving alg */ 388 /* Protocol values */ 389 /* value 0 is reserved */ 390 #define NS_KEY_PROT_TLS 1 391 #define NS_KEY_PROT_EMAIL 2 392 #define NS_KEY_PROT_DNSSEC 3 393 #define NS_KEY_PROT_IPSEC 4 394 #define NS_KEY_PROT_ANY 255 395 396 /* Signatures */ 397 #define NS_MD5RSA_MIN_BITS 512 /*%< Size of a mod or exp in bits */ 398 #define NS_MD5RSA_MAX_BITS 4096 399 /* Total of binary mod and exp */ 400 #define NS_MD5RSA_MAX_BYTES ((NS_MD5RSA_MAX_BITS+7/8)*2+3) 401 /* Max length of text sig block */ 402 #define NS_MD5RSA_MAX_BASE64 (((NS_MD5RSA_MAX_BYTES+2)/3)*4) 403 #define NS_MD5RSA_MIN_SIZE ((NS_MD5RSA_MIN_BITS+7)/8) 404 #define NS_MD5RSA_MAX_SIZE ((NS_MD5RSA_MAX_BITS+7)/8) 405 406 #define NS_DSA_SIG_SIZE 41 407 #define NS_DSA_MIN_SIZE 213 408 #define NS_DSA_MAX_BYTES 405 409 410 /* Offsets into SIG record rdata to find various values */ 411 #define NS_SIG_TYPE 0 /*%< Type flags */ 412 #define NS_SIG_ALG 2 /*%< Algorithm */ 413 #define NS_SIG_LABELS 3 /*%< How many labels in name */ 414 #define NS_SIG_OTTL 4 /*%< Original TTL */ 415 #define NS_SIG_EXPIR 8 /*%< Expiration time */ 416 #define NS_SIG_SIGNED 12 /*%< Signature time */ 417 #define NS_SIG_FOOT 16 /*%< Key footprint */ 418 #define NS_SIG_SIGNER 18 /*%< Domain name of who signed it */ 419 /* How RR types are represented as bit-flags in NXT records */ 420 #define NS_NXT_BITS 8 421 #define NS_NXT_BIT_SET( n,p) (p[(n)/NS_NXT_BITS] |= (0x80>>((n)%NS_NXT_BITS))) 422 #define NS_NXT_BIT_CLEAR(n,p) (p[(n)/NS_NXT_BITS] &= ~(0x80>>((n)%NS_NXT_BITS))) 423 #define NS_NXT_BIT_ISSET(n,p) (p[(n)/NS_NXT_BITS] & (0x80>>((n)%NS_NXT_BITS))) 424 #define NS_NXT_MAX 127 425 426 /*% 427 * EDNS0 extended flags and option codes, host order. 428 */ 429 #define NS_OPT_DNSSEC_OK 0x8000U 430 #define NS_OPT_NSID 3 431 432 /*% 433 * Inline versions of get/put short/long. Pointer is advanced. 434 */ 435 #define NS_GET16(s, cp) do { \ 436 register const u_char *t_cp = (const u_char *)(cp); \ 437 (s) = ((u_int16_t)t_cp[0] << 8) \ 438 | ((u_int16_t)t_cp[1]) \ 439 ; \ 440 (cp) += NS_INT16SZ; \ 441 } while (0) 442 443 #define NS_GET32(l, cp) do { \ 444 register const u_char *t_cp = (const u_char *)(cp); \ 445 (l) = ((u_int32_t)t_cp[0] << 24) \ 446 | ((u_int32_t)t_cp[1] << 16) \ 447 | ((u_int32_t)t_cp[2] << 8) \ 448 | ((u_int32_t)t_cp[3]) \ 449 ; \ 450 (cp) += NS_INT32SZ; \ 451 } while (0) 452 453 #define NS_PUT16(s, cp) do { \ 454 register u_int16_t t_s = (u_int16_t)(s); \ 455 register u_char *t_cp = (u_char *)(cp); \ 456 *t_cp++ = t_s >> 8; \ 457 *t_cp = t_s; \ 458 (cp) += NS_INT16SZ; \ 459 } while (0) 460 461 #define NS_PUT32(l, cp) do { \ 462 register u_int32_t t_l = (u_int32_t)(l); \ 463 register u_char *t_cp = (u_char *)(cp); \ 464 *t_cp++ = t_l >> 24; \ 465 *t_cp++ = t_l >> 16; \ 466 *t_cp++ = t_l >> 8; \ 467 *t_cp = t_l; \ 468 (cp) += NS_INT32SZ; \ 469 } while (0) 470 471 __BEGIN_DECLS 472 int ns_msg_getflag (ns_msg, int) __THROW; 473 u_int ns_get16 (const u_char *) __THROW; 474 u_long ns_get32 (const u_char *) __THROW; 475 void ns_put16 (u_int, u_char *) __THROW; 476 void ns_put32 (u_long, u_char *) __THROW; 477 int ns_initparse (const u_char *, int, ns_msg *) __THROW; 478 int ns_skiprr (const u_char *, const u_char *, ns_sect, int) 479 __THROW; 480 int ns_parserr (ns_msg *, ns_sect, int, ns_rr *) __THROW; 481 int ns_sprintrr (const ns_msg *, const ns_rr *, 482 const char *, const char *, char *, size_t) 483 __THROW; 484 int ns_sprintrrf (const u_char *, size_t, const char *, 485 ns_class, ns_type, u_long, const u_char *, 486 size_t, const char *, const char *, 487 char *, size_t) __THROW; 488 int ns_format_ttl (u_long, char *, size_t) __THROW; 489 int ns_parse_ttl (const char *, u_long *) __THROW; 490 u_int32_t ns_datetosecs (const char *, int *) __THROW; 491 int ns_name_ntol (const u_char *, u_char *, size_t) __THROW; 492 int ns_name_ntop (const u_char *, char *, size_t) __THROW; 493 int ns_name_pton (const char *, u_char *, size_t) __THROW; 494 int ns_name_unpack (const u_char *, const u_char *, 495 const u_char *, u_char *, size_t) __THROW; 496 int ns_name_pack (const u_char *, u_char *, int, 497 const u_char **, const u_char **) __THROW; 498 int ns_name_uncompress (const u_char *, const u_char *, 499 const u_char *, char *, size_t) __THROW; 500 int ns_name_compress (const char *, u_char *, size_t, 501 const u_char **, const u_char **) __THROW; 502 int ns_name_skip (const u_char **, const u_char *) __THROW; 503 void ns_name_rollback (const u_char *, const u_char **, 504 const u_char **) __THROW; 505 int ns_sign (u_char *, int *, int, int, void *, 506 const u_char *, int, u_char *, int *, time_t) __THROW; 507 int ns_sign2 (u_char *, int *, int, int, void *, 508 const u_char *, int, u_char *, int *, time_t, 509 u_char **, u_char **) __THROW; 510 int ns_sign_tcp (u_char *, int *, int, int, 511 ns_tcp_tsig_state *, int) __THROW; 512 int ns_sign_tcp2 (u_char *, int *, int, int, 513 ns_tcp_tsig_state *, int, 514 u_char **, u_char **) __THROW; 515 int ns_sign_tcp_init (void *, const u_char *, int, 516 ns_tcp_tsig_state *) __THROW; 517 u_char *ns_find_tsig (u_char *, u_char *) __THROW; 518 int ns_verify (u_char *, int *, void *, const u_char *, int, 519 u_char *, int *, time_t *, int) __THROW; 520 int ns_verify_tcp (u_char *, int *, ns_tcp_tsig_state *, int) 521 __THROW; 522 int ns_verify_tcp_init (void *, const u_char *, int, 523 ns_tcp_tsig_state *) __THROW; 524 int ns_samedomain (const char *, const char *) __THROW; 525 int ns_subdomain (const char *, const char *) __THROW; 526 int ns_makecanon (const char *, char *, size_t) __THROW; 527 int ns_samename (const char *, const char *) __THROW; 528 __END_DECLS 529 530 #ifdef BIND_4_COMPAT 531 #include <arpa/nameser_compat.h> 532 #endif 533 534 #endif /* !_ARPA_NAMESER_H_ */ 535 /*! \file */ 536
