/* Copyright (C) 1996, 1997, 1999, 2008, 2012 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 */