/*

  File: acl_get_entry.c

  Copyright (C) 1999, 2000

  Andreas Gruenbacher, <a.gruenbacher@bestbits.at>

  This program 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.

  This program 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 this library; if not, write to the Free Software

  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

*/

#include "config.h"

#include "libacl.h"

/* 23.4.14 */

int

acl_get_entry(acl_t acl, int entry_id, acl_entry_t *entry_p)

{

	acl_obj *acl_obj_p = ext2int(acl, acl);

	if (!acl_obj_p) {

		if (entry_p)

			*entry_p = NULL;

		return -1;

	}

	if (!entry_p) {

		errno = EINVAL;

		return -1;

	}

	if (entry_id == ACL_FIRST_ENTRY) {

		acl_obj_p->acurr = acl_obj_p->anext;

	} else if (entry_id == ACL_NEXT_ENTRY) {

		/*if (acl_obj_p->acurr == (acl_entry_obj *)acl_obj_p) {

			errno = EINVAL;

			return -1;

		}*/

		acl_obj_p->acurr = acl_obj_p->acurr->enext;

	}

	if (acl_obj_p->acurr == (acl_entry_obj *)acl_obj_p) {

		*entry_p = NULL;

		return 0;

	}

	if (!check_obj_p(acl_entry, acl_obj_p->acurr)) {

		return -1;

	}

	*entry_p = int2ext(acl_obj_p->acurr);

	return 1;

}