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

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This file is part of the GNU C Library.

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

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modify it under the terms of the GNU Lesser General Public

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License as published by the Free Software Foundation; either

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

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

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but WITHOUT ANY WARRANTY; without even the implied warranty of

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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU

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Lesser General Public License for more details.

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

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License along with the GNU C Library; if not, see

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

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

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and for implementors of new services. */

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#ifndef _NSS_H

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#define _NSS_H 1

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#include <features.h>

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#include <stdint.h>

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__BEGIN_DECLS

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

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enum nss_status

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{

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NSS_STATUS_TRYAGAIN = -2,

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NSS_STATUS_UNAVAIL,

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NSS_STATUS_NOTFOUND,

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NSS_STATUS_SUCCESS,

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NSS_STATUS_RETURN

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};

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

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struct gaih_addrtuple

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{

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struct gaih_addrtuple *next;

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char *name;

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int family;

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uint32_t addr[4];

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uint32_t scopeid;

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};

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/* Overwrite service selection for database DBNAME using specification

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in STRING.

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

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

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Attention: Using this function repeatedly will slowly eat up the

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

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extern int __nss_configure_lookup (const char *__dbname,

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const char *__string) __THROW;

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__END_DECLS

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#endif /* nss.h */

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