/* Copyright (C) 1996-2018 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   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, see

   <http://www.gnu.org/licenses/>.  */

/* Define interface to NSS.  This is meant for the interface functions

   and for implementors of new services.  */

#ifndef _NSS_H

#define _NSS_H	1

#include <features.h>

#include <stdint.h>

__BEGIN_DECLS

/* Possible results of lookup using a nss_* function.  */

enum nss_status

{

  NSS_STATUS_TRYAGAIN = -2,

  NSS_STATUS_UNAVAIL,

  NSS_STATUS_NOTFOUND,

  NSS_STATUS_SUCCESS,

  NSS_STATUS_RETURN

};

/* Data structure used for the 'gethostbyname4_r' function.  */

struct gaih_addrtuple

  {

    struct gaih_addrtuple *next;

    char *name;

    int family;

    uint32_t addr[4];

    uint32_t scopeid;

  };

/* Overwrite service selection for database DBNAME using specification

   in STRING.

   This function should only be used by system programs which have to

   work around non-existing services (e.e., while booting).

   Attention: Using this function repeatedly will slowly eat up the

   whole memory since previous selection data cannot be freed.  */

extern int __nss_configure_lookup (const char *__dbname,

				   const char *__string) __THROW;

__END_DECLS

#endif /* nss.h */