1 /* $NetBSD: resolv.h,v 1.31 2005/12/26 19:01:47 perry Exp $ */ 2 3 /* 4 * Copyright (c) 1983, 1987, 1989 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 * Portions 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 * @(#)resolv.h 8.1 (Berkeley) 6/2/93 51 * Id: resolv.h,v 1.7.2.11.4.2 2004/06/25 00:41:05 marka Exp 52 */ 53 54 #pragma once 55 56 #include <sys/cdefs.h> 57 58 #include <resolv.h> 59 #include "resolv_static.h" 60 #include "resolv_params.h" 61 #include "resolv_stats.h" 62 #include <net/if.h> 63 #include <time.h> 64 65 __BEGIN_DECLS 66 67 // Linux defines MAXHOSTNAMELEN as 64, while the domain name limit in 68 // RFC 1034 and RFC 1035 is 255 octets. 69 #ifdef MAXHOSTNAMELEN 70 #undef MAXHOSTNAMELEN 71 #endif 72 #define MAXHOSTNAMELEN 256 73 74 /* 75 * Revision information. This is the release date in YYYYMMDD format. 76 * It can change every day so the right thing to do with it is use it 77 * in preprocessor commands such as "#if (__RES > 19931104)". Do not 78 * compare for equality; rather, use it to determine whether your resolver 79 * is new enough to contain a certain feature. 80 */ 81 82 #define __RES 20030124 83 84 /* 85 * This used to be defined in res_query.c, now it's in herror.c. 86 * [XXX no it's not. It's in irs/irs_data.c] 87 * It was 88 * never extern'd by any *.h file before it was placed here. For thread 89 * aware programs, the last h_errno value set is stored in res->h_errno. 90 * 91 * XXX: There doesn't seem to be a good reason for exposing RES_SET_H_ERRNO 92 * (and __h_errno_set) to the public via <resolv.h>. 93 * XXX: __h_errno_set is really part of IRS, not part of the resolver. 94 * If somebody wants to build and use a resolver that doesn't use IRS, 95 * what do they do? Perhaps something like 96 * #ifdef WANT_IRS 97 * # define RES_SET_H_ERRNO(r,x) __h_errno_set(r,x) 98 * #else 99 * # define RES_SET_H_ERRNO(r,x) (h_errno = (r)->res_h_errno = (x)) 100 * #endif 101 */ 102 103 #define RES_SET_H_ERRNO(r,x) (h_errno = (r)->res_h_errno = (x)) 104 struct __res_state; /* forward */ 105 106 /* 107 * Resolver configuration file. 108 * Normally not present, but may contain the address of the 109 * initial name server(s) to query and the domain search list. 110 */ 111 112 #ifndef _PATH_RESCONF 113 #ifdef ANDROID_CHANGES 114 #define _PATH_RESCONF "/etc/ppp/resolv.conf" 115 #else 116 #define _PATH_RESCONF "/etc/resolv.conf" 117 #endif 118 #endif 119 120 struct res_sym { 121 int number; /* Identifying number, like T_MX */ 122 const char * name; /* Its symbolic name, like "MX" */ 123 const char * humanname; /* Its fun name, like "mail exchanger" */ 124 }; 125 126 /* 127 * Global defines and variables for resolver stub. 128 */ 129 #define MAXDFLSRCH 3 /* # default domain levels to try */ 130 #define LOCALDOMAINPARTS 2 /* min levels in name that is "local" */ 131 132 #define RES_TIMEOUT 5 /* min. seconds between retries */ 133 #define MAXRESOLVSORT 10 /* number of net to sort on */ 134 #define RES_MAXNDOTS 15 /* should reflect bit field size */ 135 #define RES_MAXRETRANS 30 /* only for resolv.conf/RES_OPTIONS */ 136 #define RES_MAXRETRY 5 /* only for resolv.conf/RES_OPTIONS */ 137 #define RES_DFLRETRY 2 /* Default #/tries. */ 138 #define RES_MAXTIME 65535 /* Infinity, in milliseconds. */ 139 140 struct __res_state_ext; 141 142 struct __res_state { 143 unsigned netid; /* NetId: cache key and socket mark */ 144 int retrans; /* retransmission time interval */ 145 int retry; /* number of times to retransmit */ 146 #ifdef sun 147 u_int options; /* option flags - see below. */ 148 #else 149 u_long options; /* option flags - see below. */ 150 #endif 151 int nscount; /* number of name servers */ 152 struct sockaddr_in 153 nsaddr_list[MAXNS]; /* address of name server */ 154 #define nsaddr nsaddr_list[0] /* for backward compatibility */ 155 u_short id; /* current message id */ 156 char *dnsrch[MAXDNSRCH+1]; /* components of domain to search */ 157 char defdname[256]; /* default domain (deprecated) */ 158 #ifdef sun 159 u_int pfcode; /* RES_PRF_ flags - see below. */ 160 #else 161 u_long pfcode; /* RES_PRF_ flags - see below. */ 162 #endif 163 unsigned ndots:4; /* threshold for initial abs. query */ 164 unsigned nsort:4; /* number of elements in sort_list[] */ 165 char unused[3]; 166 struct { 167 struct in_addr addr; 168 uint32_t mask; 169 } sort_list[MAXRESOLVSORT]; 170 #ifdef __OLD_RES_STATE 171 char lookups[4]; 172 #else 173 res_send_qhook qhook; /* query hook */ 174 res_send_rhook rhook; /* response hook */ 175 int res_h_errno; /* last one set for this context */ 176 unsigned _mark; /* If non-0 SET_MARK to _mark on all request sockets */ 177 int _vcsock; /* PRIVATE: for res_send VC i/o */ 178 u_int _flags; /* PRIVATE: see below */ 179 u_int _pad; /* make _u 64 bit aligned */ 180 union { 181 /* On an 32-bit arch this means 512b total. */ 182 char pad[72 - 4*sizeof (int) - 2*sizeof (void *)]; 183 struct { 184 uint16_t nscount; 185 uint16_t nstimes[MAXNS]; /* ms. */ 186 int nssocks[MAXNS]; 187 struct __res_state_ext *ext; /* extention for IPv6 */ 188 } _ext; 189 } _u; 190 #endif 191 struct res_static rstatic[1]; 192 }; 193 194 typedef struct __res_state *res_state; 195 196 /* Retrieve a local copy of the stats for the given netid. The buffer must have space for 197 * MAXNS __resolver_stats. Returns the revision id of the resolvers used. 198 */ 199 __LIBC_HIDDEN__ 200 extern int 201 _resolv_cache_get_resolver_stats( unsigned netid, struct __res_params* params, 202 struct __res_stats stats[MAXNS]); 203 204 /* Add a sample to the shared struct for the given netid and server, provided that the 205 * revision_id of the stored servers has not changed. 206 */ 207 __LIBC_HIDDEN__ 208 extern void 209 _resolv_cache_add_resolver_stats_sample( unsigned netid, int revision_id, int ns, 210 const struct __res_sample* sample, int max_samples); 211 212 /* End of stats related definitions */ 213 214 union res_sockaddr_union { 215 struct sockaddr_in sin; 216 #ifdef IN6ADDR_ANY_INIT 217 struct sockaddr_in6 sin6; 218 #endif 219 #ifdef ISC_ALIGN64 220 int64_t __align64; /* 64bit alignment */ 221 #else 222 int32_t __align32; /* 32bit alignment */ 223 #endif 224 char __space[128]; /* max size */ 225 }; 226 227 /* 228 * Resolver flags (used to be discrete per-module statics ints). 229 */ 230 #define RES_F_VC 0x00000001 /* socket is TCP */ 231 #define RES_F_CONN 0x00000002 /* socket is connected */ 232 #define RES_F_EDNS0ERR 0x00000004 /* EDNS0 caused errors */ 233 #define RES_F__UNUSED 0x00000008 /* (unused) */ 234 #define RES_F_LASTMASK 0x000000F0 /* ordinal server of last res_nsend */ 235 #define RES_F_LASTSHIFT 4 /* bit position of LASTMASK "flag" */ 236 #define RES_GETLAST(res) (((res)._flags & RES_F_LASTMASK) >> RES_F_LASTSHIFT) 237 238 /* res_findzonecut2() options */ 239 #define RES_EXHAUSTIVE 0x00000001 /* always do all queries */ 240 #define RES_IPV4ONLY 0x00000002 /* IPv4 only */ 241 #define RES_IPV6ONLY 0x00000004 /* IPv6 only */ 242 243 /* 244 * Resolver options (keep these in synch with res_debug.c, please) 245 */ 246 #define RES_INIT 0x00000001 /* address initialized */ 247 #define RES_DEBUG 0x00000002 /* print debug messages */ 248 #define RES_AAONLY 0x00000004 /* authoritative answers only (!IMPL)*/ 249 #define RES_USEVC 0x00000008 /* use virtual circuit */ 250 #define RES_PRIMARY 0x00000010 /* query primary server only (!IMPL) */ 251 #define RES_IGNTC 0x00000020 /* ignore trucation errors */ 252 #define RES_RECURSE 0x00000040 /* recursion desired */ 253 #define RES_DEFNAMES 0x00000080 /* use default domain name */ 254 #define RES_STAYOPEN 0x00000100 /* Keep TCP socket open */ 255 #define RES_DNSRCH 0x00000200 /* search up local domain tree */ 256 #define RES_INSECURE1 0x00000400 /* type 1 security disabled */ 257 #define RES_INSECURE2 0x00000800 /* type 2 security disabled */ 258 #define RES_NOALIASES 0x00001000 /* shuts off HOSTALIASES feature */ 259 #define RES_USE_INET6 0x00002000 /* use/map IPv6 in gethostbyname() */ 260 #define RES_ROTATE 0x00004000 /* rotate ns list after each query */ 261 #define RES_NOCHECKNAME 0x00008000 /* do not check names for sanity. */ 262 #define RES_KEEPTSIG 0x00010000 /* do not strip TSIG records */ 263 #define RES_BLAST 0x00020000 /* blast all recursive servers */ 264 #define RES_NOTLDQUERY 0x00100000 /* don't unqualified name as a tld */ 265 #define RES_USE_DNSSEC 0x00200000 /* use DNSSEC using OK bit in OPT */ 266 /* #define RES_DEBUG2 0x00400000 */ /* nslookup internal */ 267 /* KAME extensions: use higher bit to avoid conflict with ISC use */ 268 #define RES_USE_DNAME 0x10000000 /* use DNAME */ 269 #define RES_USE_EDNS0 0x40000000 /* use EDNS0 if configured */ 270 #define RES_NO_NIBBLE2 0x80000000 /* disable alternate nibble lookup */ 271 272 #define RES_DEFAULT (RES_RECURSE | RES_DEFNAMES | \ 273 RES_DNSRCH | RES_NO_NIBBLE2) 274 275 /* 276 * Resolver "pfcode" values. Used by dig. 277 */ 278 #define RES_PRF_STATS 0x00000001 279 #define RES_PRF_UPDATE 0x00000002 280 #define RES_PRF_CLASS 0x00000004 281 #define RES_PRF_CMD 0x00000008 282 #define RES_PRF_QUES 0x00000010 283 #define RES_PRF_ANS 0x00000020 284 #define RES_PRF_AUTH 0x00000040 285 #define RES_PRF_ADD 0x00000080 286 #define RES_PRF_HEAD1 0x00000100 287 #define RES_PRF_HEAD2 0x00000200 288 #define RES_PRF_TTLID 0x00000400 289 #define RES_PRF_HEADX 0x00000800 290 #define RES_PRF_QUERY 0x00001000 291 #define RES_PRF_REPLY 0x00002000 292 #define RES_PRF_INIT 0x00004000 293 #define RES_PRF_TRUNC 0x00008000 294 /* 0x00010000 */ 295 296 /* Things involving an internal (static) resolver context. */ 297 __LIBC_HIDDEN__ extern struct __res_state *__res_get_state(void); 298 __LIBC_HIDDEN__ extern void __res_put_state(struct __res_state *); 299 300 #ifndef ANDROID_CHANGES 301 /* 302 * Source and Binary compatibility; _res will not work properly 303 * with multi-threaded programs. 304 */ 305 extern struct __res_state *__res_state(void); 306 #define _res (*__res_state()) 307 #endif 308 309 #ifndef __BIND_NOSTATIC 310 #define fp_nquery __fp_nquery 311 #define fp_query __fp_query 312 #define hostalias __hostalias 313 #define p_query __p_query 314 #define res_close __res_close 315 #define res_opt __res_opt 316 #define res_isourserver __res_isourserver 317 #define res_querydomain __res_querydomain 318 #define res_send __res_send 319 320 #ifdef BIND_RES_POSIX3 321 #define dn_expand __dn_expand 322 #define res_init __res_init 323 #define res_query __res_query 324 #define res_search __res_search 325 #define res_mkquery __res_mkquery 326 #endif 327 328 void fp_nquery(const u_char *, int, FILE *); 329 void fp_query(const u_char *, FILE *); 330 const char * hostalias(const char *); 331 void p_query(const u_char *); 332 void res_close(void); 333 int res_init(void); 334 __LIBC_HIDDEN__ int res_opt(int, u_char *, int, int); 335 int res_isourserver(const struct sockaddr_in *); 336 int res_mkquery(int, const char *, int, int, const u_char *, int, const u_char *, u_char *, int); 337 int res_query(const char *, int, int, u_char *, int); 338 int res_querydomain(const char *, const char *, int, int, u_char *, int); 339 int res_search(const char *, int, int, u_char *, int); 340 int res_send(const u_char *, int, u_char *, int); 341 #endif 342 343 #if !defined(SHARED_LIBBIND) || defined(LIB) 344 /* 345 * If libbind is a shared object (well, DLL anyway) 346 * these externs break the linker when resolv.h is 347 * included by a lib client (like named) 348 * Make them go away if a client is including this 349 * 350 */ 351 __LIBC_HIDDEN__ extern const struct res_sym __p_key_syms[]; 352 __LIBC_HIDDEN__ extern const struct res_sym __p_cert_syms[]; 353 extern const struct res_sym __p_class_syms[]; 354 extern const struct res_sym __p_type_syms[]; 355 __LIBC_HIDDEN__ extern const struct res_sym __p_rcode_syms[]; 356 #endif /* SHARED_LIBBIND */ 357 358 #ifndef ANDROID_CHANGES 359 #define dn_comp __dn_comp 360 #endif 361 #define dn_count_labels __dn_count_labels 362 #define dn_skipname __dn_skipname 363 #define fp_resstat __fp_resstat 364 #define loc_aton __loc_aton 365 #define loc_ntoa __loc_ntoa 366 #define p_cdname __p_cdname 367 #define p_cdnname __p_cdnname 368 #define p_class __p_class 369 #define p_fqname __p_fqname 370 #define p_fqnname __p_fqnname 371 #define p_option __p_option 372 #define p_secstodate __p_secstodate 373 #define p_section __p_section 374 #define p_time __p_time 375 #define p_type __p_type 376 #define p_rcode __p_rcode 377 #define p_sockun __p_sockun 378 #define putlong __putlong 379 #define putshort __putshort 380 #define res_dnok __res_dnok 381 #define res_findzonecut __res_findzonecut 382 #define res_findzonecut2 __res_findzonecut2 383 #define res_hnok __res_hnok 384 #define res_hostalias __res_hostalias 385 #define res_mailok __res_mailok 386 #define res_nameinquery __res_nameinquery 387 #define res_nclose __res_nclose 388 #define res_ninit __res_ninit 389 #define res_nmkquery __res_nmkquery 390 #define res_pquery __res_pquery 391 #define res_nquery __res_nquery 392 #define res_nquerydomain __res_nquerydomain 393 #define res_nsearch __res_nsearch 394 #define res_nsend __res_nsend 395 #define res_nsendsigned __res_nsendsigned 396 #define res_nisourserver __res_nisourserver 397 #define res_ownok __res_ownok 398 #define res_queriesmatch __res_queriesmatch 399 #define sym_ntop __sym_ntop 400 #define sym_ntos __sym_ntos 401 #define sym_ston __sym_ston 402 #define res_nopt __res_nopt 403 #define res_ndestroy __res_ndestroy 404 #define res_nametoclass __res_nametoclass 405 #define res_nametotype __res_nametotype 406 #define res_setservers __res_setservers 407 #define res_getservers __res_getservers 408 #define res_buildprotolist __res_buildprotolist 409 #define res_destroyprotolist __res_destroyprotolist 410 #define res_destroyservicelist __res_destroyservicelist 411 #define res_get_nibblesuffix __res_get_nibblesuffix 412 #define res_get_nibblesuffix2 __res_get_nibblesuffix2 413 #define res_ourserver_p __res_ourserver_p 414 #define res_protocolname __res_protocolname 415 #define res_protocolnumber __res_protocolnumber 416 #define res_send_setqhook __res_send_setqhook 417 #define res_send_setrhook __res_send_setrhook 418 #define res_servicename __res_servicename 419 #define res_servicenumber __res_servicenumber 420 int res_hnok(const char *); 421 int res_ownok(const char *); 422 int res_mailok(const char *); 423 int res_dnok(const char *); 424 int sym_ston(const struct res_sym *, const char *, int *); 425 const char * sym_ntos(const struct res_sym *, int, int *); 426 const char * sym_ntop(const struct res_sym *, int, int *); 427 #ifndef ANDROID_CHANGES 428 int b64_ntop(u_char const *, size_t, char *, size_t); 429 int b64_pton(char const *, u_char *, size_t); 430 #endif 431 int loc_aton(const char *, u_char *); 432 const char * loc_ntoa(const u_char *, char *, size_t); 433 int dn_skipname(const u_char *, const u_char *); 434 void putlong(uint32_t, u_char *); 435 void putshort(uint16_t, u_char *); 436 #ifndef __ultrix__ 437 uint16_t _getshort(const u_char *); 438 uint32_t _getlong(const u_char *); 439 #endif 440 const char * p_class(int); 441 const char * p_time(uint32_t); 442 const char * p_type(int); 443 const char * p_rcode(int); 444 __LIBC_HIDDEN__ const char * p_sockun(union res_sockaddr_union, char *, size_t); 445 const u_char * p_cdnname(const u_char *, const u_char *, int, FILE *); 446 const u_char * p_cdname(const u_char *, const u_char *, FILE *); 447 const u_char * p_fqnname(const u_char *, const u_char *, 448 int, char *, int); 449 const u_char * p_fqname(const u_char *, const u_char *, FILE *); 450 const char * p_option(u_long); 451 char * p_secstodate(u_long); 452 int dn_count_labels(const char *); 453 int res_nameinquery(const char *, int, int, const u_char *, 454 const u_char *); 455 int res_queriesmatch(const u_char *, const u_char *, 456 const u_char *, const u_char *); 457 __LIBC_HIDDEN__ const char * p_section(int, int); 458 /* Things involving a resolver context. */ 459 int res_ninit(res_state); 460 int res_nisourserver(const res_state, const struct sockaddr_in *); 461 void fp_resstat(const res_state, FILE *); 462 __LIBC_HIDDEN__ void res_pquery(const res_state, const u_char *, int, FILE *); 463 const char * res_hostalias(const res_state, const char *, char *, size_t); 464 int res_nquery(res_state, const char *, int, int, u_char *, int); 465 int res_nsearch(res_state, const char *, int, int, u_char *, int); 466 int res_nquerydomain(res_state, const char *, const char *, 467 int, int, u_char *, int); 468 int res_nmkquery(res_state, int, const char *, int, int, 469 const u_char *, int, const u_char *, 470 u_char *, int); 471 int res_nsend(res_state, const u_char *, int, u_char *, int); 472 int res_nsendsigned(res_state, const u_char *, int, 473 ns_tsig_key *, u_char *, int); 474 int res_findzonecut(res_state, const char *, ns_class, int, 475 char *, size_t, struct in_addr *, int); 476 int res_findzonecut2(res_state, const char *, ns_class, int, 477 char *, size_t, 478 union res_sockaddr_union *, int); 479 void res_nclose(res_state); 480 __LIBC_HIDDEN__ int res_nopt(res_state, int, u_char *, int, int); 481 void res_send_setqhook(res_send_qhook); 482 void res_send_setrhook(res_send_rhook); 483 __LIBC_HIDDEN__ int __res_vinit(res_state, int); 484 void res_destroyservicelist(void); 485 const char * res_servicename(uint16_t, const char *); 486 const char * res_protocolname(int); 487 void res_destroyprotolist(void); 488 void res_buildprotolist(void); 489 __LIBC_HIDDEN__ const char * res_get_nibblesuffix(res_state); 490 __LIBC_HIDDEN__ const char * res_get_nibblesuffix2(res_state); 491 __LIBC_HIDDEN__ void res_ndestroy(res_state); 492 __LIBC_HIDDEN__ uint16_t res_nametoclass(const char *, int *); 493 __LIBC_HIDDEN__ uint16_t res_nametotype(const char *, int *); 494 __LIBC_HIDDEN__ void res_setservers(res_state, 495 const union res_sockaddr_union *, int); 496 __LIBC_HIDDEN__ int res_getservers(res_state, 497 union res_sockaddr_union *, int); 498 499 struct android_net_context; /* forward */ 500 __LIBC_HIDDEN__ void res_setnetcontext(res_state, const struct android_net_context *); 501 502 // We use the OpenBSD __res_randomid... 503 u_int __res_randomid(void); 504 // ...but NetBSD calls it res_randomid. 505 #define res_randomid __res_randomid 506 507 #ifdef __i386__ 508 # define __socketcall extern __attribute__((__cdecl__)) 509 #else 510 # define __socketcall extern 511 #endif 512 513 __socketcall int __connect(int, const struct sockaddr*, socklen_t); 514 515 #undef __socketcall 516 517 // Symbols that are supposed to be in resolv.h, but that we aren't exporting. 518 int ns_parserr2(ns_msg*, ns_sect, int, ns_rr2*); 519 int ns_name_pton2(const char*, u_char*, size_t, size_t*); 520 int ns_name_unpack2(const u_char*, const u_char*, const u_char*, u_char*, size_t, size_t*); 521 int ns_name_eq(ns_nname_ct, size_t, ns_nname_ct, size_t); 522 int ns_name_owned(ns_namemap_ct, int, ns_namemap_ct, int); 523 int ns_name_map(ns_nname_ct, size_t, ns_namemap_t, int); 524 int ns_name_labels(ns_nname_ct, size_t); 525 526 __END_DECLS 527