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Merge of xfs-cmds-2.4.18:slinx:112279a by nathans.

  acl/include/sys/acl.h 1.1 Renamed to acl/include/acl.h
  install symlinks to self rather than have deep directory trees here.
  fits in better with the build model now in use.

/*
  File: sys/acl.h

  (C) 1999 Andreas Gruenbacher, <a.gruenbacher@computer.org>

  This program 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.

  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.   the GNU
  Library General Public License for more details.

  You should have received a copy of the GNU Library 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.
*/

#ifndef __SYS_ACL_H
#define __SYS_ACL_H

#include <sys/types.h>

#ifdef __cplusplus
extern "C" {
#endif

/*=== Data types ===*/

struct __acl_ext;
struct __acl_entry_ext;
struct __acl_permset_ext;

typedef unsigned int		acl_type_t;
typedef int			acl_tag_t;
typedef unsigned int		acl_perm_t;

typedef struct __acl_ext	*acl_t;
typedef struct __acl_entry_ext	*acl_entry_t;
typedef struct __acl_permset_ext *acl_permset_t;

/*=== Constants ===*/

/* 23.2.2 acl_perm_t values */

#define ACL_READ		(0x04)
#define ACL_WRITE		(0x02)
#define ACL_EXECUTE		(0x01)
//#define ACL_ADD		(0x08)
//#define ACL_DELETE		(0x10)

/* 23.2.5 acl_tag_t values */

#define ACL_UNDEFINED_TAG	(0x00)
#define ACL_USER_OBJ		(0x01)
#define ACL_USER		(0x02)
#define ACL_GROUP_OBJ		(0x04)
#define ACL_GROUP		(0x08)
#define ACL_MASK		(0x10)
#define ACL_OTHER		(0x20)

/* 23.3.6 acl_type_t values */

#define ACL_TYPE_ACCESS		(0x8000)
#define ACL_TYPE_DEFAULT	(0x4000)

/* 23.2.7 ACL qualifier constants */

#define ACL_UNDEFINED_ID	((unsigned int)-1)

/* 23.2.8 ACL Entry Constants */

#define ACL_FIRST_ENTRY		0
#define ACL_NEXT_ENTRY		1

/*=== ACL manipulation ===*/

extern acl_t
acl_init(
	int count);
extern acl_t
acl_dup(
	acl_t acl);
extern int
acl_free(
	void *obj_p);
extern int
acl_valid(
	acl_t acl);

/*=== Entry manipulation ===*/

extern int
acl_copy_entry(
	acl_entry_t dest_d,
	acl_entry_t src_d);
extern int
acl_create_entry(
	acl_t *acl_p,
	acl_entry_t *entry_p);
extern int
acl_delete_entry(
	acl_t acl,
	acl_entry_t entry_d);
extern int
acl_get_entry(
	acl_t acl,
	int entry_id,
	acl_entry_t *entry_p);

/* Manipulate ACL entry permissions */

extern int
acl_add_perm(
	acl_permset_t permset_d,
	acl_perm_t perm);
extern int
acl_calc_mask(
	acl_t *acl_p);
extern int
acl_clear_perms(
	acl_permset_t permset_d);
extern int
acl_delete_perm(
	acl_permset_t permset_d,
	acl_perm_t perm);
extern int
acl_get_permset(
	acl_entry_t entry_d,
	acl_permset_t *permset_p);
extern int
acl_set_permset(
	acl_entry_t entry_d,
	acl_permset_t permset_d);

/* Manipulate ACL entry tag type and qualifier */

extern void *
acl_get_qualifier(
	acl_entry_t entry_d);
extern int
acl_get_tag_type(
	acl_entry_t entry_d,
	acl_tag_t *tag_type_p);
extern int
acl_set_qualifier(
	acl_entry_t entry_d,
	const void *tag_qualifier_p);
extern int
acl_set_tag_type(
	acl_entry_t entry_d,
	acl_tag_t tag_type);

/*=== Format translation ===*/

extern ssize_t
acl_copy_ext(
	void *buf_p,
	acl_t acl,
	ssize_t size);
extern acl_t
acl_copy_int(
	const void *buf_p);
extern acl_t
acl_from_text(
	const char *buf_p);
extern ssize_t
acl_size(
	acl_t acl);
extern char *
acl_to_text(
	acl_t acl,
	ssize_t *len_p);

/*=== Object manipulation ===*/

extern int
acl_delete_def_file(
	const char *path_p);
extern acl_t
acl_get_fd(
	int fd);
extern acl_t
acl_get_file(
	const char *path_p,
	acl_type_t type);
extern int
acl_set_fd(
	int fd,
	acl_t acl);
extern int
acl_set_file(
	const char *path_p,
	acl_type_t type,
	acl_t acl);

#ifdef __cplusplus
}
#endif

#endif  /* __SYS_ACL_H */