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/*
File: sequence.h
(Linux Access Control List Management)
Copyright (C) 1999 by Andreas Gruenbacher
<a.gruenbacher@computer.org>
This 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.
This 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 this library; if not, see <https://www.gnu.org/licenses/>.
*/
#ifndef __SEQUENCE_H
#define __SEQUENCE_H
#include <sys/acl.h>
#ifdef __cplusplus
extern "C" {
#endif
typedef unsigned int cmd_tag_t;
struct cmd_obj {
cmd_tag_t c_cmd;
acl_type_t c_type;
acl_tag_t c_tag;
uid_t c_id;
mode_t c_perm;
struct cmd_obj *c_next;
};
typedef struct cmd_obj *cmd_t;
struct seq_obj {
cmd_t s_first;
cmd_t s_last;
};
typedef struct seq_obj *seq_t;
/* command types */
#define CMD_ENTRY_REPLACE (0)
#define CMD_REMOVE_ENTRY (3)
#define CMD_REMOVE_EXTENDED_ACL (4)
#define CMD_REMOVE_ACL (5)
/* constants for permission specifiers */
#define CMD_PERM_READ (4)
#define CMD_PERM_WRITE (2)
#define CMD_PERM_EXECUTE (1)
#define CMD_PERM_COND_EXECUTE (8)
/* iteration over command sequence */
#define SEQ_FIRST_CMD (0)
#define SEQ_NEXT_CMD (1)
/* command sequence manipulation */
cmd_t
cmd_init(
void);
void
cmd_free(
cmd_t cmd);
seq_t
seq_init(
void);
int
seq_free(
seq_t seq);
int
seq_empty(
seq_t seq);
int
seq_append(
seq_t seq,
cmd_t cmd);
int
seq_append_cmd(
seq_t seq,
cmd_tag_t cmd,
acl_type_t type);
int
seq_get_cmd(
seq_t seq,
int which,
cmd_t *cmd);
int
seq_delete_cmd(
seq_t seq,
cmd_t cmd);
#ifdef __cplusplus
}
#endif
#endif /* __SEQUENCE_H */
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