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  $   ˆl–ß=¿Jå5*qAãNÜ TÅ£É„MïÈÀÌ 8H    /* Copyright (C) 1996-2021 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
   <https://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 <stddef.h>
#include <stdint.h>
#include <sys/types.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;

/* NSS-related types.  */
struct __netgrent;
struct aliasent;
struct ether_addr;
struct etherent;
struct group;
struct hostent;
struct netent;
struct passwd;
struct protoent;
struct rpcent;
struct servent;
struct sgrp;
struct spwd;
struct traced_file;

/* Types of functions exported from NSS service modules.  */
typedef enum nss_status nss_endaliasent (void);
typedef enum nss_status nss_endetherent (void);
typedef enum nss_status nss_endgrent (void);
typedef enum nss_status nss_endhostent (void);
typedef enum nss_status nss_endnetent (void);
typedef enum nss_status nss_endnetgrent (struct __netgrent *);
typedef enum nss_status nss_endprotoent (void);
typedef enum nss_status nss_endpwent (void);
typedef enum nss_status nss_endrpcent (void);
typedef enum nss_status nss_endservent (void);
typedef enum nss_status nss_endsgent (void);
typedef enum nss_status nss_endspent (void);
typedef enum nss_status nss_getaliasbyname_r (const char *, struct aliasent *,
                                              char *, size_t, int *);
typedef enum nss_status nss_getaliasent_r (struct aliasent *,
                                           char *, size_t, int *);
typedef enum nss_status nss_getcanonname_r (const char *, char *, size_t,
                                            char **, int *, int *);
typedef enum nss_status nss_getetherent_r (struct etherent *,
                                           char *, size_t, int *);
typedef enum nss_status nss_getgrent_r (struct group *, char *, size_t, int *);
typedef enum nss_status nss_getgrgid_r (__gid_t, struct group *,
                                        char *, size_t, int *);
typedef enum nss_status nss_getgrnam_r (const char *, struct group *,
                                        char *, size_t, int *);
typedef enum nss_status nss_gethostbyaddr2_r (const void *, __socklen_t, int,
                                              struct hostent *, char *, size_t,
                                              int *, int *, int32_t *);
typedef enum nss_status nss_gethostbyaddr_r (const void *, __socklen_t, int,