etc/Windows/vlmcsd_old_vancepym/resolv.h

   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 #ifndef _RESOLV_PRIVATE_H_
  55 #define    _RESOLV_PRIVATE_H_
  56
  57 #include <resolv.h>
  58 #include "resolv_static.h"
  59
  60 /*
  61  * Revision information.  This is the release date in YYYYMMDD format.
  62  * It can change every day so the right thing to do with it is use it
  63  * in preprocessor commands such as "#if (__RES > 19931104)".  Do not
  64  * compare for equality; rather, use it to determine whether your resolver
  65  * is new enough to contain a certain feature.
  66  */
  67
  68 #define    __RES    20030124
  69
  70 /*
  71  * This used to be defined in res_query.c, now it's in herror.c.
  72  * [XXX no it's not.  It's in irs/irs_data.c]
  73  * It was
  74  * never extern'd by any *.h file before it was placed here.  For thread
  75  * aware programs, the last h_errno value set is stored in res->h_errno.
  76  *
  77  * XXX:    There doesn't seem to be a good reason for exposing RES_SET_H_ERRNO
  78  *    (and __h_errno_set) to the public via <resolv.h>.
  79  * XXX:    __h_errno_set is really part of IRS, not part of the resolver.
  80  *    If somebody wants to build and use a resolver that doesn't use IRS,
  81  *    what do they do?  Perhaps something like
  82  *        #ifdef WANT_IRS
  83  *        # define RES_SET_H_ERRNO(r,x) __h_errno_set(r,x)
  84  *        #else
  85  *        # define RES_SET_H_ERRNO(r,x) (h_errno = (r)->res_h_errno = (x))
  86  *        #endif
  87  */
  88
  89 #define RES_SET_H_ERRNO(r,x) (h_errno = (r)->res_h_errno = (x))
  90 struct __res_state; /* forward */
  91
  92 /*
  93  * Resolver configuration file.
  94  * Normally not present, but may contain the address of the
  95  * initial name server(s) to query and the domain search list.
  96  */
  97
  98 #ifndef _PATH_RESCONF
  99 #ifdef ANDROID_CHANGES
 100 #define _PATH_RESCONF        "/etc/ppp/resolv.conf"
 101 #else
 102 #define _PATH_RESCONF        "/etc/resolv.conf"
 103 #endif
 104 #endif
 105
 106 typedef enum { res_goahead, res_nextns, res_modified, res_done, res_error }
 107     res_sendhookact;
 108
 109 typedef res_sendhookact (*res_send_qhook)(struct sockaddr * const *,
 110                           const u_char **, int *,
 111                           u_char *, int, int *);
 112
 113 typedef res_sendhookact (*res_send_rhook)(const struct sockaddr *,
 114                           const u_char *, int, u_char *,
 115                           int, int *);
 116
 117 struct res_sym {
 118     int        number;       /* Identifying number, like T_MX */
 119     const char *    name;       /* Its symbolic name, like "MX" */
 120     const char *    humanname; /* Its fun name, like "mail exchanger" */
 121 };
 122
 123 /*
 124  * Global defines and variables for resolver stub.
 125  */
 126 #define    MAXNS            3    /* max # name servers we'll track */
 127 #define    MAXDFLSRCH        3    /* # default domain levels to try */
 128 #define    MAXDNSRCH        6    /* max # domains in search path */
 129 #define    LOCALDOMAINPARTS    2    /* min levels in name that is "local" */
 130
 131 #define    RES_TIMEOUT        5    /* min. seconds between retries */
 132 #define    MAXRESOLVSORT        10    /* number of net to sort on */
 133 #define    RES_MAXNDOTS        15    /* should reflect bit field size */
 134 #define    RES_MAXRETRANS        30    /* only for resolv.conf/RES_OPTIONS */
 135 #define    RES_MAXRETRY        5    /* only for resolv.conf/RES_OPTIONS */
 136 #define    RES_DFLRETRY        2    /* Default #/tries. */
 137 #define    RES_MAXTIME        65535    /* Infinity, in milliseconds. */
 138
 139 struct __res_state_ext;
 140
 141 struct __res_state {
 142     int    retrans;         /* retransmission time interval */
 143     int    retry;            /* number of times to retransmit */
 144 #ifdef sun
 145     u_int    options;        /* option flags - see below. */
 146 #else
 147     u_long    options;        /* option flags - see below. */
 148 #endif
 149     int    nscount;        /* number of name servers */
 150     struct sockaddr_in
 151         nsaddr_list[MAXNS];    /* address of name server */
 152 #define    nsaddr    nsaddr_list[0]        /* for backward compatibility */
 153     u_short    id;            /* current message id */
 154     char    *dnsrch[MAXDNSRCH+1];    /* components of domain to search */
 155     char    defdname[256];        /* default domain (deprecated) */
 156 #ifdef sun
 157     u_int    pfcode;            /* RES_PRF_ flags - see below. */
 158 #else
 159     u_long    pfcode;            /* RES_PRF_ flags - see below. */
 160 #endif
 161     unsigned ndots:4;        /* threshold for initial abs. query */
 162     unsigned nsort:4;        /* number of elements in sort_list[] */
 163     char    unused[3];
 164     struct {
 165         struct in_addr    addr;
 166         uint32_t    mask;
 167     } sort_list[MAXRESOLVSORT];
 168 #ifdef __OLD_RES_STATE
 169     char lookups[4];
 170 #else
 171     res_send_qhook qhook;        /* query hook */
 172     res_send_rhook rhook;        /* response hook */
 173     int    res_h_errno;        /* last one set for this context */
 174     int    _vcsock;        /* PRIVATE: for res_send VC i/o */
 175     u_int    _flags;            /* PRIVATE: see below */
 176     u_int    _pad;            /* make _u 64 bit aligned */
 177     union {
 178         /* On an 32-bit arch this means 512b total. */
 179         char    pad[72 - 4*sizeof (int) - 2*sizeof (void *)];
 180         struct {
 181             uint16_t        nscount;
 182             uint16_t        nstimes[MAXNS];    /* ms. */
 183             int            nssocks[MAXNS];
 184             struct __res_state_ext *ext;    /* extention for IPv6 */
 185         } _ext;
 186     } _u;
 187 #endif
 188         struct res_static   rstatic[1];
 189 };
 190
 191 typedef struct __res_state *res_state;
 192
 193 union res_sockaddr_union {
 194     struct sockaddr_in    sin;
 195 #ifdef IN6ADDR_ANY_INIT
 196     struct sockaddr_in6    sin6;
 197 #endif
 198 #ifdef ISC_ALIGN64
 199     int64_t            __align64;    /* 64bit alignment */
 200 #else
 201     int32_t            __align32;    /* 32bit alignment */
 202 #endif
 203     char            __space[128];   /* max size */
 204 };
 205
 206 /*
 207  * Resolver flags (used to be discrete per-module statics ints).
 208  */
 209 #define    RES_F_VC    0x00000001    /* socket is TCP */
 210 #define    RES_F_CONN    0x00000002    /* socket is connected */
 211 #define    RES_F_EDNS0ERR    0x00000004    /* EDNS0 caused errors */
 212 #define    RES_F__UNUSED    0x00000008    /* (unused) */
 213 #define    RES_F_LASTMASK    0x000000F0    /* ordinal server of last res_nsend */
 214 #define    RES_F_LASTSHIFT    4        /* bit position of LASTMASK "flag" */
 215 #define    RES_GETLAST(res) (((res)._flags & RES_F_LASTMASK) >> RES_F_LASTSHIFT)
 216
 217 /* res_findzonecut2() options */
 218 #define    RES_EXHAUSTIVE    0x00000001    /* always do all queries */
 219 #define    RES_IPV4ONLY    0x00000002    /* IPv4 only */
 220 #define    RES_IPV6ONLY    0x00000004    /* IPv6 only */
 221
 222 /*
 223  * Resolver options (keep these in synch with res_debug.c, please)
 224  */
 225 #define RES_INIT    0x00000001    /* address initialized */
 226 #define RES_DEBUG    0x00000002    /* print debug messages */
 227 #define RES_AAONLY    0x00000004    /* authoritative answers only (!IMPL)*/
 228 #define RES_USEVC    0x00000008    /* use virtual circuit */
 229 #define RES_PRIMARY    0x00000010    /* query primary server only (!IMPL) */
 230 #define RES_IGNTC    0x00000020    /* ignore trucation errors */
 231 #define RES_RECURSE    0x00000040    /* recursion desired */
 232 #define RES_DEFNAMES    0x00000080    /* use default domain name */
 233 #define RES_STAYOPEN    0x00000100    /* Keep TCP socket open */
 234 #define RES_DNSRCH    0x00000200    /* search up local domain tree */
 235 #define    RES_INSECURE1    0x00000400    /* type 1 security disabled */
 236 #define    RES_INSECURE2    0x00000800    /* type 2 security disabled */
 237 #define    RES_NOALIASES    0x00001000    /* shuts off HOSTALIASES feature */
 238 #define    RES_USE_INET6    0x00002000    /* use/map IPv6 in gethostbyname() */
 239 #define RES_ROTATE    0x00004000    /* rotate ns list after each query */
 240 #define    RES_NOCHECKNAME    0x00008000    /* do not check names for sanity. */
 241 #define    RES_KEEPTSIG    0x00010000    /* do not strip TSIG records */
 242 #define    RES_BLAST    0x00020000    /* blast all recursive servers */
 243 #define RES_NOTLDQUERY    0x00100000    /* don't unqualified name as a tld */
 244 #define RES_USE_DNSSEC    0x00200000    /* use DNSSEC using OK bit in OPT */
 245 /* #define RES_DEBUG2    0x00400000 */    /* nslookup internal */
 246 /* KAME extensions: use higher bit to avoid conflict with ISC use */
 247 #define RES_USE_DNAME    0x10000000    /* use DNAME */
 248 #define RES_USE_EDNS0    0x40000000    /* use EDNS0 if configured */
 249 #define RES_NO_NIBBLE2    0x80000000    /* disable alternate nibble lookup */
 250
 251 #define RES_DEFAULT    (RES_RECURSE | RES_DEFNAMES | \
 252              RES_DNSRCH | RES_NO_NIBBLE2)
 253
 254 /*
 255  * Resolver "pfcode" values.  Used by dig.
 256  */
 257 #define RES_PRF_STATS    0x00000001
 258 #define RES_PRF_UPDATE    0x00000002
 259 #define RES_PRF_CLASS   0x00000004
 260 #define RES_PRF_CMD    0x00000008
 261 #define RES_PRF_QUES    0x00000010
 262 #define RES_PRF_ANS    0x00000020
 263 #define RES_PRF_AUTH    0x00000040
 264 #define RES_PRF_ADD    0x00000080
 265 #define RES_PRF_HEAD1    0x00000100
 266 #define RES_PRF_HEAD2    0x00000200
 267 #define RES_PRF_TTLID    0x00000400
 268 #define RES_PRF_HEADX    0x00000800
 269 #define RES_PRF_QUERY    0x00001000
 270 #define RES_PRF_REPLY    0x00002000
 271 #define RES_PRF_INIT    0x00004000
 272 #define RES_PRF_TRUNC    0x00008000
 273 /*            0x00010000    */
 274
 275 /* Things involving an internal (static) resolver context. */
 276 __BEGIN_DECLS
 277 extern struct __res_state *__res_get_state(void);
 278 extern void __res_put_state(struct __res_state *);
 279
 280 #ifndef ANDROID_CHANGES
 281 /*
 282  * Source and Binary compatibility; _res will not work properly
 283  * with multi-threaded programs.
 284  */
 285 extern struct __res_state *__res_state(void);
 286 #define _res (*__res_state())
 287 #endif
 288
 289 __END_DECLS
 290
 291 #ifndef __BIND_NOSTATIC
 292 #define fp_nquery        __fp_nquery
 293 #define fp_query        __fp_query
 294 #define hostalias        __hostalias
 295 #define p_query            __p_query
 296 #define res_close        __res_close
 297 #define res_opt            __res_opt
 298 #define res_isourserver        __res_isourserver
 299 #define    res_querydomain        __res_querydomain
 300 #define res_send        __res_send
 301 #define res_sendsigned        __res_sendsigned
 302
 303 #ifdef BIND_RES_POSIX3
 304 #define    dn_expand    __dn_expand
 305 #define    res_init    __res_init
 306 #define    res_query    __res_query
 307 #define    res_search    __res_search
 308 #define    res_mkquery    __res_mkquery
 309 #endif
 310
 311 __BEGIN_DECLS
 312 void        fp_nquery(const u_char *, int, FILE *);
 313 void        fp_query(const u_char *, FILE *);
 314 const char *    hostalias(const char *);
 315 void        p_query(const u_char *);
 316 void        res_close(void);
 317 int        res_init(void);
 318 int        res_opt(int, u_char *, int, int);
 319 int        res_isourserver(const struct sockaddr_in *);
 320 int        res_mkquery(int, const char *, int, int, const u_char *, int, const u_char *, u_char *, int);
 321 int        res_query(const char *, int, int, u_char *, int);
 322 int        res_querydomain(const char *, const char *, int, int, u_char *, int);
 323 int        res_search(const char *, int, int, u_char *, int);
 324 int        res_send(const u_char *, int, u_char *, int);
 325 int        res_sendsigned(const u_char *, int, ns_tsig_key *, u_char *, int);
 326 __END_DECLS
 327 #endif
 328
 329 #if !defined(SHARED_LIBBIND) || defined(LIB)
 330 /*
 331  * If libbind is a shared object (well, DLL anyway)
 332  * these externs break the linker when resolv.h is
 333  * included by a lib client (like named)
 334  * Make them go away if a client is including this
 335  *
 336  */
 337 extern const struct res_sym __p_key_syms[];
 338 extern const struct res_sym __p_cert_syms[];
 339 extern const struct res_sym __p_class_syms[];
 340 extern const struct res_sym __p_type_syms[];
 341 extern const struct res_sym __p_rcode_syms[];
 342 #endif /* SHARED_LIBBIND */
 343
 344 #ifndef ADNROID_CHANGES
 345 #define b64_ntop        __b64_ntop
 346 #define b64_pton        __b64_pton
 347 #endif
 348
 349 #define dn_comp            __dn_comp
 350 #define dn_count_labels        __dn_count_labels
 351 #define dn_skipname        __dn_skipname
 352 #define fp_resstat        __fp_resstat
 353 #define loc_aton        __loc_aton
 354 #define loc_ntoa        __loc_ntoa
 355 #define p_cdname        __p_cdname
 356 #define p_cdnname        __p_cdnname
 357 #define p_class            __p_class
 358 #define p_fqname        __p_fqname
 359 #define p_fqnname        __p_fqnname
 360 #define p_option        __p_option
 361 #define p_secstodate        __p_secstodate
 362 #define p_section        __p_section
 363 #define p_time            __p_time
 364 #define p_type            __p_type
 365 #define p_rcode            __p_rcode
 366 #define p_sockun        __p_sockun
 367 #define putlong            __putlong
 368 #define putshort        __putshort
 369 #define res_dnok        __res_dnok
 370 #define res_findzonecut        __res_findzonecut
 371 #define res_findzonecut2    __res_findzonecut2
 372 #define res_hnok        __res_hnok
 373 #define res_hostalias        __res_hostalias
 374 #define res_mailok        __res_mailok
 375 #define res_nameinquery        __res_nameinquery
 376 #define res_nclose        __res_nclose
 377 #define res_ninit        __res_ninit
 378 #define res_nmkquery        __res_nmkquery
 379 #define res_pquery        __res_pquery
 380 #define res_nquery        __res_nquery
 381 #define res_nquerydomain    __res_nquerydomain
 382 #define res_nsearch        __res_nsearch
 383 #define res_nsend        __res_nsend
 384 #define res_nsendsigned        __res_nsendsigned
 385 #define res_nisourserver    __res_nisourserver
 386 #define res_ownok        __res_ownok
 387 #define res_queriesmatch    __res_queriesmatch
 388 #define res_randomid        __res_randomid
 389 #define sym_ntop        __sym_ntop
 390 #define sym_ntos        __sym_ntos
 391 #define sym_ston        __sym_ston
 392 #define res_nopt        __res_nopt
 393 #define res_ndestroy        __res_ndestroy
 394 #define    res_nametoclass        __res_nametoclass
 395 #define    res_nametotype        __res_nametotype
 396 #define    res_setservers        __res_setservers
 397 #define    res_getservers        __res_getservers
 398 #define    res_buildprotolist    __res_buildprotolist
 399 #define    res_destroyprotolist    __res_destroyprotolist
 400 #define    res_destroyservicelist    __res_destroyservicelist
 401 #define    res_get_nibblesuffix    __res_get_nibblesuffix
 402 #define    res_get_nibblesuffix2    __res_get_nibblesuffix2
 403 #define    res_ourserver_p        __res_ourserver_p
 404 #define    res_protocolname    __res_protocolname
 405 #define    res_protocolnumber    __res_protocolnumber
 406 #define    res_send_setqhook    __res_send_setqhook
 407 #define    res_send_setrhook    __res_send_setrhook
 408 #define    res_servicename        __res_servicename
 409 #define    res_servicenumber    __res_servicenumber
 410 __BEGIN_DECLS
 411 int        res_hnok(const char *);
 412 int        res_ownok(const char *);
 413 int        res_mailok(const char *);
 414 int        res_dnok(const char *);
 415 int        sym_ston(const struct res_sym *, const char *, int *);
 416 const char *    sym_ntos(const struct res_sym *, int, int *);
 417 const char *    sym_ntop(const struct res_sym *, int, int *);
 418 #ifndef ANDROID_CHANGES
 419 int        b64_ntop(u_char const *, size_t, char *, size_t);
 420 int        b64_pton(char const *, u_char *, size_t);
 421 #endif
 422 int        loc_aton(const char *, u_char *);
 423 const char *    loc_ntoa(const u_char *, char *);
 424 int        dn_skipname(const u_char *, const u_char *);
 425 void        putlong(uint32_t, u_char *);
 426 void        putshort(uint16_t, u_char *);
 427 #ifndef __ultrix__
 428 uint16_t    _getshort(const u_char *);
 429 uint32_t    _getlong(const u_char *);
 430 #endif
 431 const char *    p_class(int);
 432 const char *    p_time(uint32_t);
 433 const char *    p_type(int);
 434 const char *    p_rcode(int);
 435 const char *    p_sockun(union res_sockaddr_union, char *, size_t);
 436 const u_char *    p_cdnname(const u_char *, const u_char *, int, FILE *);
 437 const u_char *    p_cdname(const u_char *, const u_char *, FILE *);
 438 const u_char *    p_fqnname(const u_char *, const u_char *,
 439                    int, char *, int);
 440 const u_char *    p_fqname(const u_char *, const u_char *, FILE *);
 441 const char *    p_option(u_long);
 442 char *        p_secstodate(u_long);
 443 int        dn_count_labels(const char *);
 444 int        dn_comp(const char *, u_char *, int, u_char **, u_char **);
 445 int        dn_expand(const u_char *, const u_char *, const u_char *,
 446                    char *, int);
 447 u_int        res_randomid(void);
 448 int        res_nameinquery(const char *, int, int, const u_char *,
 449                      const u_char *);
 450 int        res_queriesmatch(const u_char *, const u_char *,
 451                       const u_char *, const u_char *);
 452 const char *    p_section(int, int);
 453 /* Things involving a resolver context. */
 454 int        res_ninit(res_state);
 455 int        res_nisourserver(const res_state, const struct sockaddr_in *);
 456 void        fp_resstat(const res_state, FILE *);
 457 void        res_pquery(const res_state, const u_char *, int, FILE *);
 458 const char *    res_hostalias(const res_state, const char *, char *, size_t);
 459 int        res_nquery(res_state, const char *, int, int, u_char *, int);
 460 int        res_nsearch(res_state, const char *, int, int, u_char *, int);
 461 int        res_nquerydomain(res_state, const char *, const char *,
 462                       int, int, u_char *, int);
 463 int        res_nmkquery(res_state, int, const char *, int, int,
 464                   const u_char *, int, const u_char *,
 465                   u_char *, int);
 466 int        res_nsend(res_state, const u_char *, int, u_char *, int);
 467 int        res_nsendsigned(res_state, const u_char *, int,
 468                      ns_tsig_key *, u_char *, int);
 469 int        res_findzonecut(res_state, const char *, ns_class, int,
 470                      char *, size_t, struct in_addr *, int);
 471 int        res_findzonecut2(res_state, const char *, ns_class, int,
 472                       char *, size_t,
 473                       union res_sockaddr_union *, int);
 474 void        res_nclose(res_state);
 475 int        res_nopt(res_state, int, u_char *, int, int);
 476 void        res_send_setqhook(res_send_qhook);
 477 void        res_send_setrhook(res_send_rhook);
 478 int        __res_vinit(res_state, int);
 479 void        res_destroyservicelist(void);
 480 const char *    res_servicename(uint16_t, const char *);
 481 const char *    res_protocolname(int);
 482 void        res_destroyprotolist(void);
 483 void        res_buildprotolist(void);
 484 const char *    res_get_nibblesuffix(res_state);
 485 const char *    res_get_nibblesuffix2(res_state);
 486 void        res_ndestroy(res_state);
 487 uint16_t    res_nametoclass(const char *, int *);
 488 uint16_t    res_nametotype(const char *, int *);
 489 void        res_setservers(res_state,
 490                     const union res_sockaddr_union *, int);
 491 int        res_getservers(res_state,
 492                     union res_sockaddr_union *, int);
 493
 494 int res_get_dns_changed();
 495 u_int  res_randomid(void);
 496
 497 __END_DECLS
 498
 499 #endif /* !_RESOLV_PRIVATE_H_ */