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/* Internal header for netgroup related functions.
Copyright (C) 1996, 1997 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 Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#ifndef _NETGROUP_H
#define _NETGROUP_H 1
/* 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
{
const char *name;
struct name_list *next;
};
/* 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;
char *cursor;
int first;
struct name_list *known_groups;
struct name_list *needed_groups;
};
/* The internal netgroup handling functions might be called from outside. */
extern int __internal_setnetgrent (const char *group,
struct __netgrent *datap);
extern void __internal_endnetgrent (struct __netgrent *datap);
extern int __internal_getnetgrent_r (char **hostp, char **userp,
char **domainp, struct __netgrent *datap,
char *buffer, size_t buflen);
#endif /* netgroup.h */
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