* Updating common/lib * Updating lib/csu * Updating lib/libc * Updating libexec/ld.elf_so * Corrected test on __minix in featuretest to actually follow the meaning of the comment. * Cleaned up _REENTRANT-related defintions. * Disabled -D_REENTRANT for libfetch * Removing some unneeded __NBSD_LIBC defines and tests Change-Id: Ic1394baef74d11b9f86b312f5ff4bbc3cbf72ce2
509 lines
19 KiB
C
509 lines
19 KiB
C
/* $NetBSD: resolv.h,v 1.39 2012/09/09 18:03:17 christos Exp $ */
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/*
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* Portions Copyright (C) 2004, 2005, 2008, 2009 Internet Systems Consortium, Inc. ("ISC")
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* Portions Copyright (C) 1995-2003 Internet Software Consortium.
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
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* REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
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* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
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* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
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* OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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/*
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* Copyright (c) 1983, 1987, 1989
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/*%
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* @(#)resolv.h 8.1 (Berkeley) 6/2/93
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* Id: resolv.h,v 1.30 2009/03/03 01:52:48 each Exp
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*/
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#ifndef _RESOLV_H_
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#define _RESOLV_H_
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#include <sys/param.h>
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#if (!defined(BSD)) || (BSD < 199306)
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# include <sys/bitypes.h>
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#else
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#include <sys/types.h>
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#endif
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#include <sys/cdefs.h>
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#include <sys/socket.h>
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#include <stdio.h>
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#include <arpa/nameser.h>
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/*%
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* Revision information. This is the release date in YYYYMMDD format.
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* It can change every day so the right thing to do with it is use it
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* in preprocessor commands such as "#if (__RES > 19931104)". Do not
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* compare for equality; rather, use it to determine whether your resolver
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* is new enough to contain a certain feature.
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*/
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#define __RES 20090302
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/*%
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* This used to be defined in res_query.c, now it's in herror.c.
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* [XXX no it's not. It's in irs/irs_data.c]
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* It was
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* never extern'd by any *.h file before it was placed here. For thread
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* aware programs, the last h_errno value set is stored in res->h_errno.
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*
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* XXX: There doesn't seem to be a good reason for exposing RES_SET_H_ERRNO
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* (and __h_errno_set) to the public via <resolv.h>.
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* XXX: __h_errno_set is really part of IRS, not part of the resolver.
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* If somebody wants to build and use a resolver that doesn't use IRS,
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* what do they do? Perhaps something like
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* #ifdef WANT_IRS
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* # define RES_SET_H_ERRNO(r,x) __h_errno_set(r,x)
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* #else
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* # define RES_SET_H_ERRNO(r,x) (h_errno = (r)->res_h_errno = (x))
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* #endif
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*/
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#define RES_SET_H_ERRNO(r,x) __h_errno_set(r,x)
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struct __res_state; /*%< forward */
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__BEGIN_DECLS
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void __h_errno_set(struct __res_state *, int);
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__END_DECLS
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/*%
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* Resolver configuration file.
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* Normally not present, but may contain the address of the
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* initial name server(s) to query and the domain search list.
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*/
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#ifndef _PATH_RESCONF
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#define _PATH_RESCONF "/etc/resolv.conf"
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#endif
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typedef enum { res_goahead, res_nextns, res_modified, res_done, res_error }
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res_sendhookact;
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typedef res_sendhookact (*res_send_qhook)(struct sockaddr * const *,
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const u_char **, int *,
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u_char *, int, int *);
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typedef res_sendhookact (*res_send_rhook)(const struct sockaddr *,
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const u_char *, int, u_char *,
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int, int *);
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struct res_sym {
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int number; /*%< Identifying number, like T_MX */
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const char * name; /*%< Its symbolic name, like "MX" */
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const char * humanname; /*%< Its fun name, like "mail exchanger" */
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};
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/*%
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* Global defines and variables for resolver stub.
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*/
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#define MAXNS 3 /*%< max # name servers we'll track */
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#define MAXDFLSRCH 3 /*%< # default domain levels to try */
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#define MAXDNSRCH 6 /*%< max # domains in search path */
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#define LOCALDOMAINPARTS 2 /*%< min levels in name that is "local" */
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#define RES_TIMEOUT 5 /*%< min. seconds between retries */
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#define MAXRESOLVSORT 10 /*%< number of net to sort on */
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#define RES_MAXNDOTS 15 /*%< should reflect bit field size */
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#define RES_MAXRETRANS 30 /*%< only for resolv.conf/RES_OPTIONS */
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#define RES_MAXRETRY 5 /*%< only for resolv.conf/RES_OPTIONS */
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#define RES_DFLRETRY 2 /*%< Default #/tries. */
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#define RES_MAXTIME 65535 /*%< Infinity, in milliseconds. */
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struct __res_state_ext;
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struct __res_state {
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int retrans; /*%< retransmission time interval */
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int retry; /*%< number of times to retransmit */
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#ifdef sun
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u_int options; /*%< option flags - see below. */
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#else
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u_long options; /*%< option flags - see below. */
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#endif
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int nscount; /*%< number of name servers */
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struct sockaddr_in
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nsaddr_list[MAXNS]; /*%< address of name server */
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#define nsaddr nsaddr_list[0] /*%< for backward compatibility */
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u_short id; /*%< current message id */
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char *dnsrch[MAXDNSRCH+1]; /*%< components of domain to search */
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char defdname[256]; /*%< default domain (deprecated) */
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#ifdef sun
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u_int pfcode; /*%< RES_PRF_ flags - see below. */
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#else
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u_long pfcode; /*%< RES_PRF_ flags - see below. */
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#endif
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unsigned ndots:4; /*%< threshold for initial abs. query */
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unsigned nsort:4; /*%< number of elements in sort_list[] */
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char unused[3];
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struct {
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struct in_addr addr;
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uint32_t mask;
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} sort_list[MAXRESOLVSORT];
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#ifdef __OLD_RES_STATE
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char lookups[4];
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#else
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res_send_qhook qhook; /*%< query hook */
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res_send_rhook rhook; /*%< response hook */
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int res_h_errno; /*%< last one set for this context */
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int _vcsock; /*%< PRIVATE: for res_send VC i/o */
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u_int _flags; /*%< PRIVATE: see below */
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u_int _pad; /*%< make _u 64 bit aligned */
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union {
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/* On an 32-bit arch this means 512b total. */
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char pad[56 - 4*sizeof (int) - 3*sizeof (void *)];
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struct {
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uint16_t nscount;
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uint16_t nstimes[MAXNS]; /*%< ms. */
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int nssocks[MAXNS];
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struct __res_state_ext *ext; /*%< extention for IPv6 */
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} _ext;
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} _u;
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u_char *_rnd; /*%< PRIVATE: random state */
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#endif
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};
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typedef struct __res_state *res_state;
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union res_sockaddr_union {
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struct sockaddr_in sin;
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#ifdef IN6ADDR_ANY_INIT
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struct sockaddr_in6 sin6;
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#endif
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#ifdef ISC_ALIGN64
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int64_t __align64; /*%< 64bit alignment */
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#else
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int32_t __align32; /*%< 32bit alignment */
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#endif
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char __space[128]; /* max size */
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};
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/*%
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* Resolver flags (used to be discrete per-module statics ints).
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*/
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#define RES_F_VC 0x00000001 /*%< socket is TCP */
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#define RES_F_CONN 0x00000002 /*%< socket is connected */
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#define RES_F_EDNS0ERR 0x00000004 /*%< EDNS0 caused errors */
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#define RES_F__UNUSED 0x00000008 /*%< (unused) */
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#define RES_F_LASTMASK 0x000000F0 /*%< ordinal server of last res_nsend */
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#define RES_F_LASTSHIFT 4 /*%< bit position of LASTMASK "flag" */
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#define RES_GETLAST(res) (((res)._flags & RES_F_LASTMASK) >> RES_F_LASTSHIFT)
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/* res_findzonecut2() options */
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#define RES_EXHAUSTIVE 0x00000001 /*%< always do all queries */
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#define RES_IPV4ONLY 0x00000002 /*%< IPv4 only */
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#define RES_IPV6ONLY 0x00000004 /*%< IPv6 only */
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/*%
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* Resolver options (keep these in synch with res_debug.c, please)
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*/
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#define RES_INIT 0x00000001 /*%< address initialized */
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#define RES_DEBUG 0x00000002 /*%< print debug messages */
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#define RES_AAONLY 0x00000004 /*%< authoritative answers only (!IMPL)*/
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#define RES_USEVC 0x00000008 /*%< use virtual circuit */
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#define RES_PRIMARY 0x00000010 /*%< query primary server only (!IMPL) */
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#define RES_IGNTC 0x00000020 /*%< ignore trucation errors */
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#define RES_RECURSE 0x00000040 /*%< recursion desired */
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#define RES_DEFNAMES 0x00000080 /*%< use default domain name */
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#define RES_STAYOPEN 0x00000100 /*%< Keep TCP socket open */
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#define RES_DNSRCH 0x00000200 /*%< search up local domain tree */
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#define RES_INSECURE1 0x00000400 /*%< type 1 security disabled */
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#define RES_INSECURE2 0x00000800 /*%< type 2 security disabled */
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#define RES_NOALIASES 0x00001000 /*%< shuts off HOSTALIASES feature */
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#define RES_USE_INET6 0x00002000 /*%< use/map IPv6 in gethostbyname() */
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#define RES_ROTATE 0x00004000 /*%< rotate ns list after each query */
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#define RES_NOCHECKNAME 0x00008000 /*%< do not check names for sanity. */
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#define RES_KEEPTSIG 0x00010000 /*%< do not strip TSIG records */
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#define RES_BLAST 0x00020000 /*%< blast all recursive servers */
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#define RES_NSID 0x00040000 /*%< request name server ID */
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#define RES_NOTLDQUERY 0x00100000 /*%< don't unqualified name as a tld */
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#define RES_USE_DNSSEC 0x00200000 /*%< use DNSSEC using OK bit in OPT */
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/* #define RES_DEBUG2 0x00400000 */ /* nslookup internal */
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/* KAME extensions: use higher bit to avoid conflict with ISC use */
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#define RES_USE_DNAME 0x10000000 /*%< use DNAME */
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#define RES_USE_EDNS0 0x40000000 /*%< use EDNS0 if configured */
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#define RES_NO_NIBBLE2 0x80000000 /*%< disable alternate nibble lookup */
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#define RES_DEFAULT (RES_RECURSE | RES_DEFNAMES | \
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RES_DNSRCH | RES_NO_NIBBLE2 | RES_NOCHECKNAME)
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/*%
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* Resolver "pfcode" values. Used by dig.
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*/
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#define RES_PRF_STATS 0x00000001
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#define RES_PRF_UPDATE 0x00000002
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#define RES_PRF_CLASS 0x00000004
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#define RES_PRF_CMD 0x00000008
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#define RES_PRF_QUES 0x00000010
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#define RES_PRF_ANS 0x00000020
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#define RES_PRF_AUTH 0x00000040
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#define RES_PRF_ADD 0x00000080
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#define RES_PRF_HEAD1 0x00000100
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#define RES_PRF_HEAD2 0x00000200
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#define RES_PRF_TTLID 0x00000400
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#define RES_PRF_HEADX 0x00000800
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#define RES_PRF_QUERY 0x00001000
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#define RES_PRF_REPLY 0x00002000
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#define RES_PRF_INIT 0x00004000
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#define RES_PRF_TRUNC 0x00008000
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/* 0x00010000 */
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/* Things involving an internal (static) resolver context. */
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__BEGIN_DECLS
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extern struct __res_state *__res_get_state(void);
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extern void __res_put_state(struct __res_state *);
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/*
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* Source and Binary compatibility; _res will not work properly
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* with multi-threaded programs.
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*/
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extern struct __res_state *__res_state(void);
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#define _res (*__res_state())
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__END_DECLS
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#ifndef __BIND_NOSTATIC
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#define fp_nquery __fp_nquery
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#define fp_query __fp_query
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#define hostalias __hostalias
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#define p_query __p_query
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#define res_close __res_close
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#define res_isourserver __res_isourserver
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#define res_opt __res_opt
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#define res_querydomain __res_querydomain
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#define res_send __res_send
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#define res_sendsigned __res_sendsigned
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#ifdef notdef
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/* NetBSD protects these via weak symbols. */
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#define res_init __res_init
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#define res_query __res_query
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#define res_mkquery __res_mkquery
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#define dn_expand __dn_expand
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#define res_search __res_search
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#endif
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__BEGIN_DECLS
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void fp_nquery(const u_char *, int, FILE *);
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void fp_query(const u_char *, FILE *);
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const char * hostalias(const char *);
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void p_query(const u_char *);
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void res_close(void);
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int res_init(void);
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int res_opt(int, u_char *, int, int);
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int res_isourserver(const struct sockaddr_in *);
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int res_mkquery(int, const char *, int, int, const u_char *,
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int, const u_char *, u_char *, int);
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int res_query(const char *, int, int, u_char *, int);
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int res_querydomain(const char *, const char *, int, int,
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u_char *, int);
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int res_search(const char *, int, int, u_char *, int);
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int res_send(const u_char *, int, u_char *, int);
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int res_sendsigned(const u_char *, int, ns_tsig_key *,
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u_char *, int);
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__END_DECLS
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#endif
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#if !defined(SHARED_LIBBIND) || defined(LIB)
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/*
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* If libbind is a shared object (well, DLL anyway)
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* these externs break the linker when resolv.h is
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* included by a lib client (like named)
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* Make them go away if a client is including this
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*
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*/
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extern const struct res_sym __p_key_syms[];
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extern const struct res_sym __p_cert_syms[];
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extern const struct res_sym __p_class_syms[];
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extern const struct res_sym __p_type_syms[];
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extern const struct res_sym __p_rcode_syms[];
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#endif /* SHARED_LIBBIND */
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#define b64_ntop __b64_ntop
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#define b64_pton __b64_pton
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#define dn_comp __dn_comp
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#define dn_count_labels __dn_count_labels
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#define dn_skipname __dn_skipname
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#define fp_resstat __fp_resstat
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#define loc_aton __loc_aton
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#define loc_ntoa __loc_ntoa
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#define p_cdname __p_cdname
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#define p_cdnname __p_cdnname
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#define p_class __p_class
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#define p_fqname __p_fqname
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#define p_fqnname __p_fqnname
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#define p_option __p_option
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#define p_secstodate __p_secstodate
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#define p_section __p_section
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#define p_time __p_time
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#define p_type __p_type
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#define p_rcode __p_rcode
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#define p_sockun __p_sockun
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#define putlong __putlong
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#define putshort __putshort
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#define res_check __res_check
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#define res_dnok __res_dnok
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#define res_findzonecut __res_findzonecut
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#define res_findzonecut2 __res_findzonecut2
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#define res_hnok __res_hnok
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#define res_hostalias __res_hostalias
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#define res_mailok __res_mailok
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#define res_nameinquery __res_nameinquery
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#define res_nclose __res_nclose
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#define res_ninit __res_ninit
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#define res_nmkquery __res_nmkquery
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#define res_pquery __res_pquery
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#define res_nquery __res_nquery
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#define res_nquerydomain __res_nquerydomain
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#define res_nsearch __res_nsearch
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#define res_nsend __res_nsend
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#define res_nsendsigned __res_nsendsigned
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#define res_nisourserver __res_nisourserver
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#define res_ownok __res_ownok
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#define res_queriesmatch __res_queriesmatch
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#define res_rndinit __res_rndinit
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#define res_randomid __res_randomid
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#define res_nrandomid __res_nrandomid
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#define sym_ntop __sym_ntop
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#define sym_ntos __sym_ntos
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#define sym_ston __sym_ston
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#define res_nopt __res_nopt
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#define res_nopt_rdata __res_nopt_rdata
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#define res_ndestroy __res_ndestroy
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#define res_nametoclass __res_nametoclass
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#define res_nametotype __res_nametotype
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#define res_setservers __res_setservers
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#define res_getservers __res_getservers
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#define res_buildprotolist __res_buildprotolist
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#define res_destroyprotolist __res_destroyprotolist
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#define res_destroyservicelist __res_destroyservicelist
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#define res_get_nibblesuffix __res_get_nibblesuffix
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#define res_get_nibblesuffix2 __res_get_nibblesuffix2
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#define res_ourserver_p __res_ourserver_p
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#define res_protocolname __res_protocolname
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#define res_protocolnumber __res_protocolnumber
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#define res_send_setqhook __res_send_setqhook
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#define res_send_setrhook __res_send_setrhook
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#define res_servicename __res_servicename
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#define res_servicenumber __res_servicenumber
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__BEGIN_DECLS
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int res_hnok(const char *);
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int res_ownok(const char *);
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int res_mailok(const char *);
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struct timespec;
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int res_check(res_state, struct timespec *);
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int res_dnok(const char *);
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int sym_ston(const struct res_sym *, const char *, int *);
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const char * sym_ntos(const struct res_sym *, int, int *);
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const char * sym_ntop(const struct res_sym *, int, int *);
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int b64_ntop(u_char const *, size_t, char *, size_t);
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int b64_pton(char const *, u_char *, size_t);
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int loc_aton(const char *, u_char *);
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const char * loc_ntoa(const u_char *, char *);
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int dn_skipname(const u_char *, const u_char *);
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void putlong(uint32_t, u_char *);
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void putshort(uint16_t, u_char *);
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#ifndef __ultrix__
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uint16_t _getshort(const u_char *);
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uint32_t _getlong(const u_char *);
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#endif
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const char * p_class(int);
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const char * p_time(uint32_t);
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const char * p_type(int);
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const char * p_rcode(int);
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const char * p_sockun(union res_sockaddr_union, char *, size_t);
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const u_char * p_cdnname(const u_char *, const u_char *, int, FILE *);
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const u_char * p_cdname(const u_char *, const u_char *, FILE *);
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const u_char * p_fqnname(const u_char *, const u_char *,
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int, char *, int);
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const u_char * p_fqname(const u_char *, const u_char *, FILE *);
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const char * p_option(u_long);
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char * p_secstodate(u_long);
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int dn_count_labels(const char *);
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int dn_comp(const char *, u_char *, int, u_char **, u_char **);
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int dn_expand(const u_char *, const u_char *, const u_char *,
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char *, int);
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void res_rndinit(res_state);
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u_int res_randomid(void);
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u_int res_nrandomid(res_state);
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int res_nameinquery(const char *, int, int, const u_char *,
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const u_char *);
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int res_queriesmatch(const u_char *, const u_char *,
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const u_char *, const u_char *);
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const char * p_section(int, int);
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/* Things involving a resolver context. */
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int res_ninit(res_state);
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int res_nisourserver(const res_state, const struct sockaddr_in *);
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void fp_resstat(const res_state, FILE *);
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void res_pquery(const res_state, const u_char *, int, FILE *);
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const char * res_hostalias(const res_state, const char *, char *, size_t);
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int res_nquery(res_state, const char *, int, int, u_char *, int);
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int res_nsearch(res_state, const char *, int, int, u_char *, int);
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int res_nquerydomain(res_state, const char *, const char *,
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int, int, u_char *, int);
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int res_nmkquery(res_state, int, const char *, int, int,
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const u_char *, int, const u_char *,
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u_char *, int);
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int res_nsend(res_state, const u_char *, int, u_char *, int);
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int res_nsendsigned(res_state, const u_char *, int,
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ns_tsig_key *, u_char *, int);
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int res_findzonecut(res_state, const char *, ns_class, int,
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char *, size_t, struct in_addr *, int);
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int res_findzonecut2(res_state, const char *, ns_class, int,
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char *, size_t,
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union res_sockaddr_union *, int);
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void res_nclose(res_state);
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int res_nopt(res_state, int, u_char *, int, int);
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int res_nopt_rdata(res_state, int, u_char *, int, u_char *,
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u_short, u_short, u_char *);
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void res_send_setqhook(res_send_qhook);
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void res_send_setrhook(res_send_rhook);
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int __res_vinit(res_state, int);
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void res_destroyservicelist(void);
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const char * res_servicename(uint16_t, const char *);
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|
const char * res_protocolname(int);
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|
void res_destroyprotolist(void);
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|
void res_buildprotolist(void);
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|
const char * res_get_nibblesuffix(res_state);
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|
const char * res_get_nibblesuffix2(res_state);
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|
void res_ndestroy(res_state);
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|
uint16_t res_nametoclass(const char *, int *);
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|
uint16_t res_nametotype(const char *, int *);
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|
void res_setservers(res_state,
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|
const union res_sockaddr_union *, int);
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int res_getservers(res_state,
|
|
union res_sockaddr_union *, int);
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__END_DECLS
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|
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#endif /* !_RESOLV_H_ */
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