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/* Internal header for netgroup related functions.
Copyright (C) 1996-2020 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/>. */
#ifndef _NETGROUP_H
#define _NETGROUP_H 1
#include <nsswitch.h>
/* A netgroup can consist of names of other netgroups. We have to
track which netgroups were read and which still have to be read. */
struct name_list
{
struct name_list *next;
char name[];
};
/* Dataset for iterating netgroups. */
struct __netgrent
{
enum { triple_val, group_val } type;
union
{
struct
{
const char *host;
const char *user;
const char *domain;
}
triple;
const char *group;
} val;
/* Room for the data kept between the calls to the netgroup
functions. We must avoid global variables. */
char *data;
size_t data_size;
union
{
char *cursor;
unsigned long int position;
};
int first;
struct name_list *known_groups;
struct name_list *needed_groups;
/* This handle for the NSS data base is shared between all
set/get/endXXXent functions. */
struct nss_action *nip;
};
/* The internal netgroup handling functions might be called from outside. */
extern int __internal_setnetgrent (const char *group,
struct __netgrent *datap);
libc_hidden_proto (__internal_setnetgrent)
extern void __internal_endnetgrent (struct __netgrent *datap);
libc_hidden_proto (__internal_endnetgrent)
extern int __internal_getnetgrent_r (char **hostp, char **userp,
char **domainp, struct __netgrent *datap,
char *buffer, size_t buflen, int *errnop);
libc_hidden_proto (__internal_getnetgrent_r)
#endif /* netgroup.h */
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