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/* SPDX-License-Identifier: LGPL-3.0-or-later */
/*
* dir_entry.h - This file is part of libsquashfs
*
* Copyright (C) 2023 David Oberhollenzer <goliath@infraroot.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 3 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 General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef SQFS_DIR_ENTRY_H
#define SQFS_DIR_ENTRY_H
#include "sqfs/predef.h"
/**
* @file dir_entry.h
*
* @brief Contains @ref sqfs_dir_entry_t structure representing
* a decoded directory entry.
*/
/**
* @enum SQFS_DIR_ENTRY_FLAG
*
* @brief Additional flags for a @ref sqfs_dir_entry_t
*/
typedef enum {
SQFS_DIR_ENTRY_FLAG_MOUNT_POINT = 0x0001,
SQFS_DIR_ENTRY_FLAG_HARD_LINK = 0x0002,
SQFS_DIR_ENTRY_FLAG_ALL = 0x0003,
} SQFS_DIR_ENTRY_FLAG;
/**
* @struct sqfs_dir_entry_t
*
* @brief A completely decoded directory entry
*/
struct sqfs_dir_entry_t {
/**
* @brief Total size of file entries
*/
sqfs_u64 size;
/**
* @brief Unix time stamp when the entry was last modified.
*/
sqfs_s64 mtime;
/**
* @brief Device number where the entry is stored on.
*/
sqfs_u64 dev;
/**
* @brief Device number for device special files.
*/
sqfs_u64 rdev;
/**
* @brief Device and filesystem specific inode number.
*/
sqfs_u64 inode;
/**
* @brief ID of the user that owns the entry.
*/
sqfs_u64 uid;
/**
* @brief ID of the group that owns the entry.
*/
sqfs_u64 gid;
/**
* @brief Unix style permissions and entry type.
*/
sqfs_u16 mode;
/**
* @brief Combination of SQFS_DIR_ENTRY_FLAG values
*/
sqfs_u16 flags;
/**
* @brief Name of the entry
*/
char name[];
};
#ifdef __cplusplus
extern "C" {
#endif
/**
* @brief Create an instance of @ref sqfs_dir_entry_t
*
* @memberof sqfs_dir_entry_t
*
* The name string is stored inline (flexible array member), the entry has
* to be released with @ref sqfs_free
*
* @param name The name of the entry
* @param mode Unix permissions and entry type
* @param flags A combination of @ref SQFS_DIR_ENTRY_FLAG flags
*
* @return A pointer to a directory entry on success, NULL on failure.
*/
SQFS_API sqfs_dir_entry_t *sqfs_dir_entry_create(const char *name,
sqfs_u16 mode,
sqfs_u16 flags);
#ifdef __cplusplus
}
#endif
#endif /* SQFS_DIR_ENTRY_H */
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