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/* Copyright (C) 1996,1997,1998,1999,2000,2002 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.

   The GNU C Library is free software; you can redistribute it and/or

   modify it under the terms of the GNU Lesser General Public

   License as published by the Free Software Foundation; either

   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,

   but WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public

   License along with the GNU C Library; if not, write to the Free

   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA

   02111-1307 USA.  */

#include <netdb.h>

#include <string.h>

#define LOOKUP_TYPE     struct hostent

#define FUNCTION_NAME   gethostbyaddr

#define DATABASE_NAME   hosts

#define ADD_PARAMS      const void *addr, socklen_t len, int type

#define ADD_VARIABLES   addr, len, type

#define NEED_H_ERRNO    1

#define NEED__RES       1

#define NEED__RES_HCONF 1

/* If the addr parameter is the IPv6 unspecified address no query must

   be performed.  */

#define PREPROCESS \

  if (len == sizeof (struct in6_addr)                                         \

      && __builtin_expect (memcmp (&in6addr_any, addr,                        \

                                   sizeof (struct in6_addr)), 1) == 0)         \

    {                                                                         \

      *h_errnop = HOST_NOT_FOUND;                                             \

      *result = NULL;                                                         \

      return ENOENT;                                                          \

    }

#define POSTPROCESS \

  if (status == NSS_STATUS_SUCCESS)                                           \

    {                                                                         \

      _res_hconf_reorder_addrs (resbuf);                                      \

      _res_hconf_trim_domains (resbuf);                                       \

    }

/* Special name for the lookup function.  */

#define DB_LOOKUP_FCT __nss_hosts_lookup

#include "getXXbyYY_r.c"