source: mainline/uspace/lib/ext2/libext2_directory.h@ 102d400

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since 102d400 was 102d400, checked in by Martin Sucha <sucha14@…>, 15 years ago

Add structure definition for linked list directory entry

  • Property mode set to 100644
File size: 2.4 KB
Line 
1/*
2 * Copyright (c) 2011 Martin Sucha
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * - Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * - Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * - The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29/** @addtogroup libext2
30 * @{
31 */
32/**
33 * @file
34 */
35
36#ifndef LIBEXT2_LIBEXT2_DIRECTORY_H_
37#define LIBEXT2_LIBEXT2_DIRECTORY_H_
38
39#include <libblock.h>
40
41/**
42 * Linked list directory entry structure
43 */
44typedef struct ext2_directory_entry_ll {
45 uint32_t inode; // Inode for the entry
46 uint16_t entry_length; // Distance to the next directory entry
47 uint8_t name_length; // Lower 8 bits of name length
48 union {
49 uint8_t name_length_high; // Higher 8 bits of name length
50 uint8_t inode_type; // Type of referenced inode (in rev >= 0.5)
51 } __attribute__ ((packed));
52 uint8_t name; // First byte of name, if present
53} __attribute__ ((packed)) ext2_directory_entry_ll_t;
54
55
56inline uint32_t ext2_directory_entry_ll_get_inode(ext2_directory_entry_ll_t *);
57inline uint16_t ext2_directory_entry_ll_get_entry_length(
58 ext2_directory_entry_ll_t *);
59inline uint16_t ext2_directory_entry_ll_get_name_length(
60 ext2_superblock_t *, ext2_directory_entry_ll_t *);
61
62#endif
63
64/** @}
65 */
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