etc/Windows/vlmcsd_old_vancepym/nameser.h

   1 /*    $NetBSD: nameser.h,v 1.19 2005/12/26 19:01:47 perry Exp $    */
   2
   3 /*
   4  * Copyright (c) 1983, 1989, 1993
   5  *    The Regents of the University of California.  All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. Neither the name of the University nor the names of its contributors
  16  *    may be used to endorse or promote products derived from this software
  17  *    without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  29  * SUCH DAMAGE.
  30  */
  31
  32 /*
  33  * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
  34  * Copyright (c) 1996-1999 by Internet Software Consortium.
  35  *
  36  * Permission to use, copy, modify, and distribute this software for any
  37  * purpose with or without fee is hereby granted, provided that the above
  38  * copyright notice and this permission notice appear in all copies.
  39  *
  40  * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES
  41  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  42  * MERCHANTABILITY AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR
  43  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  44  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  45  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
  46  * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  47  */
  48
  49 /*
  50  *    Id: nameser.h,v 1.2.2.4.4.1 2004/03/09 08:33:30 marka Exp
  51  */
  52
  53 #ifndef _ARPA_NAMESER_H_
  54 #define _ARPA_NAMESER_H_
  55
  56 #define BIND_4_COMPAT
  57
  58 #include <sys/types.h>
  59 #include <sys/cdefs.h>
  60
  61 /*
  62  * Revision information.  This is the release date in YYYYMMDD format.
  63  * It can change every day so the right thing to do with it is use it
  64  * in preprocessor commands such as "#if (__NAMESER > 19931104)".  Do not
  65  * compare for equality; rather, use it to determine whether your libbind.a
  66  * contains a new enough lib/nameser/ to support the feature you need.
  67  */
  68
  69 #define __NAMESER    19991006    /* New interface version stamp. */
  70
  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 uint32_t */
  83 #define NS_INT16SZ    2    /* #/bytes of data in a uint16_t */
  84 #define NS_INT8SZ    1    /* #/bytes of data in a uint8_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 /*
  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     uint16_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 const 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) ((size_t)((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     uint16_t    type;
 137     uint16_t    rr_class;
 138     uint32_t    ttl;
 139     uint16_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)    ((u_long)(rr).ttl + 0)
 148 #define ns_rr_rdlen(rr)    ((size_t)(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 (RFC 3123) */
 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
 378 /* The Algorithm field of the KEY and SIG RR's is an integer, {1..254} */
 379 #define    NS_ALG_MD5RSA        1    /* MD5 with RSA */
 380 #define    NS_ALG_DH               2    /* Diffie Hellman KEY */
 381 #define    NS_ALG_DSA              3    /* DSA KEY */
 382 #define    NS_ALG_DSS              NS_ALG_DSA
 383 #define    NS_ALG_EXPIRE_ONLY    253    /* No alg, no security */
 384 #define    NS_ALG_PRIVATE_OID    254    /* Key begins with OID giving alg */
 385
 386 /* Protocol values  */
 387 /* value 0 is reserved */
 388 #define NS_KEY_PROT_TLS         1
 389 #define NS_KEY_PROT_EMAIL       2
 390 #define NS_KEY_PROT_DNSSEC      3
 391 #define NS_KEY_PROT_IPSEC       4
 392 #define NS_KEY_PROT_ANY        255
 393
 394 /* Signatures */
 395 #define    NS_MD5RSA_MIN_BITS     512    /* Size of a mod or exp in bits */
 396 #define    NS_MD5RSA_MAX_BITS    4096
 397     /* Total of binary mod and exp */
 398 #define    NS_MD5RSA_MAX_BYTES    ((NS_MD5RSA_MAX_BITS+7/8)*2+3)
 399     /* Max length of text sig block */
 400 #define    NS_MD5RSA_MAX_BASE64    (((NS_MD5RSA_MAX_BYTES+2)/3)*4)
 401 #define NS_MD5RSA_MIN_SIZE    ((NS_MD5RSA_MIN_BITS+7)/8)
 402 #define NS_MD5RSA_MAX_SIZE    ((NS_MD5RSA_MAX_BITS+7)/8)
 403
 404 #define NS_DSA_SIG_SIZE         41
 405 #define NS_DSA_MIN_SIZE         213
 406 #define NS_DSA_MAX_BYTES        405
 407
 408 /* Offsets into SIG record rdata to find various values */
 409 #define    NS_SIG_TYPE    0    /* Type flags */
 410 #define    NS_SIG_ALG    2    /* Algorithm */
 411 #define    NS_SIG_LABELS    3    /* How many labels in name */
 412 #define    NS_SIG_OTTL    4    /* Original TTL */
 413 #define    NS_SIG_EXPIR    8    /* Expiration time */
 414 #define    NS_SIG_SIGNED    12    /* Signature time */
 415 #define    NS_SIG_FOOT    16    /* Key footprint */
 416 #define    NS_SIG_SIGNER    18    /* Domain name of who signed it */
 417
 418 /* How RR types are represented as bit-flags in NXT records */
 419 #define    NS_NXT_BITS 8
 420 #define    NS_NXT_BIT_SET(  n,p) (p[(n)/NS_NXT_BITS] |=  (0x80>>((n)%NS_NXT_BITS)))
 421 #define    NS_NXT_BIT_CLEAR(n,p) (p[(n)/NS_NXT_BITS] &= ~(0x80>>((n)%NS_NXT_BITS)))
 422 #define    NS_NXT_BIT_ISSET(n,p) (p[(n)/NS_NXT_BITS] &   (0x80>>((n)%NS_NXT_BITS)))
 423 #define NS_NXT_MAX 127
 424
 425 /*
 426  * EDNS0 extended flags, host order.
 427  */
 428 #define NS_OPT_DNSSEC_OK    0x8000U
 429
 430 /*
 431  * Inline versions of get/put short/long.  Pointer is advanced.
 432  */
 433 #define NS_GET16(s, cp) do { \
 434     const u_char *t_cp = (const u_char *)(cp); \
 435     (s) = ((uint16_t)t_cp[0] << 8) \
 436         | ((uint16_t)t_cp[1]) \
 437         ; \
 438     (cp) += NS_INT16SZ; \
 439 } while (/*CONSTCOND*/0)
 440
 441 #define NS_GET32(l, cp) do { \
 442     const u_char *t_cp = (const u_char *)(cp); \
 443     (l) = ((uint32_t)t_cp[0] << 24) \
 444         | ((uint32_t)t_cp[1] << 16) \
 445         | ((uint32_t)t_cp[2] << 8) \
 446         | ((uint32_t)t_cp[3]) \
 447         ; \
 448     (cp) += NS_INT32SZ; \
 449 } while (/*CONSTCOND*/0)
 450
 451 #define NS_PUT16(s, cp) do { \
 452     uint32_t t_s = (uint32_t)(s); \
 453     u_char *t_cp = (u_char *)(cp); \
 454     *t_cp++ = t_s >> 8; \
 455     *t_cp   = t_s; \
 456     (cp) += NS_INT16SZ; \
 457 } while (/*CONSTCOND*/0)
 458
 459 #define NS_PUT32(l, cp) do { \
 460     uint32_t t_l = (uint32_t)(l); \
 461     u_char *t_cp = (u_char *)(cp); \
 462     *t_cp++ = t_l >> 24; \
 463     *t_cp++ = t_l >> 16; \
 464     *t_cp++ = t_l >> 8; \
 465     *t_cp   = t_l; \
 466     (cp) += NS_INT32SZ; \
 467 } while (/*CONSTCOND*/0)
 468
 469 /*
 470  * ANSI C identifier hiding for bind's lib/nameser.
 471  */
 472 #define    ns_msg_getflag        __ns_msg_getflag
 473 #define ns_get16        __ns_get16
 474 #define ns_get32        __ns_get32
 475 #define ns_put16        __ns_put16
 476 #define ns_put32        __ns_put32
 477 #define ns_initparse        __ns_initparse
 478 #define ns_skiprr        __ns_skiprr
 479 #define ns_parserr        __ns_parserr
 480 #define    ns_sprintrr        __ns_sprintrr
 481 #define    ns_sprintrrf        __ns_sprintrrf
 482 #define    ns_format_ttl        __ns_format_ttl
 483 #define    ns_parse_ttl        __ns_parse_ttl
 484 #define ns_datetosecs        __ns_datetosecs
 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 #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 #define    ns_samedomain        __ns_samedomain
 504 #define    ns_subdomain        __ns_subdomain
 505 #define    ns_makecanon        __ns_makecanon
 506 #define    ns_samename        __ns_samename
 507
 508 __BEGIN_DECLS
 509 int        ns_msg_getflag(ns_msg, int);
 510 uint16_t    ns_get16(const u_char *);
 511 uint32_t    ns_get32(const u_char *);
 512 void        ns_put16(uint16_t, u_char *);
 513 void        ns_put32(uint32_t, u_char *);
 514 int        ns_initparse(const u_char *, int, ns_msg *);
 515 int        ns_skiprr(const u_char *, const u_char *, ns_sect, int);
 516 int        ns_parserr(ns_msg *, ns_sect, int, ns_rr *);
 517 int        ns_sprintrr(const ns_msg *, const ns_rr *,
 518                  const char *, const char *, char *, size_t);
 519 int        ns_sprintrrf(const u_char *, size_t, const char *,
 520                   ns_class, ns_type, u_long, const u_char *,
 521                   size_t, const char *, const char *,
 522                   char *, size_t);
 523 int        ns_format_ttl(u_long, char *, size_t);
 524 int        ns_parse_ttl(const char *, u_long *);
 525 uint32_t    ns_datetosecs(const char *cp, int *errp);
 526 int        ns_name_ntol(const u_char *, u_char *, size_t);
 527 int        ns_name_ntop(const u_char *, char *, size_t);
 528 int        ns_name_pton(const char *, u_char *, size_t);
 529 int        ns_name_unpack(const u_char *, const u_char *,
 530                     const u_char *, u_char *, size_t);
 531 int        ns_name_pack(const u_char *, u_char *, int,
 532                   const u_char **, const u_char **);
 533 int        ns_name_uncompress(const u_char *, const u_char *,
 534                     const u_char *, char *, size_t);
 535 int        ns_name_compress(const char *, u_char *, size_t,
 536                       const u_char **, const u_char **);
 537 int        ns_name_skip(const u_char **, const u_char *);
 538 void        ns_name_rollback(const u_char *, const u_char **,
 539                       const u_char **);
 540 int        ns_sign(u_char *, int *, int, int, void *,
 541                  const u_char *, int, u_char *, int *, time_t);
 542 int        ns_sign2(u_char *, int *, int, int, void *,
 543                   const u_char *, int, u_char *, int *, time_t,
 544                   u_char **, u_char **);
 545 int        ns_sign_tcp(u_char *, int *, int, int,
 546                  ns_tcp_tsig_state *, int);
 547 int        ns_sign_tcp2(u_char *, int *, int, int,
 548                   ns_tcp_tsig_state *, int,
 549                   u_char **, u_char **);
 550 int        ns_sign_tcp_init(void *, const u_char *, int,
 551                     ns_tcp_tsig_state *);
 552 u_char        *ns_find_tsig(u_char *, u_char *);
 553 int        ns_verify(u_char *, int *, void *,
 554                    const u_char *, int, u_char *, int *,
 555                    time_t *, int);
 556 int        ns_verify_tcp(u_char *, int *, ns_tcp_tsig_state *, int);
 557 int        ns_verify_tcp_init(void *, const u_char *, int,
 558                     ns_tcp_tsig_state *);
 559 int        ns_samedomain(const char *, const char *);
 560 int        ns_subdomain(const char *, const char *);
 561 int        ns_makecanon(const char *, char *, size_t);
 562 int        ns_samename(const char *, const char *);
 563 __END_DECLS
 564
 565 #ifdef BIND_4_COMPAT
 566 #include "nameser_compat.h"
 567 #endif
 568
 569 #endif /* !_ARPA_NAMESER_H_ */