1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
|
/*
* dblist_dir.c --- iterate by directory entry
*
* Copyright 1997 by Theodore Ts'o
*
* %Begin-Header%
* This file may be redistributed under the terms of the GNU Library
* General Public License, version 2.
* %End-Header%
*/
#include "config.h"
#include <stdio.h>
#if HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <string.h>
#include <time.h>
#include "ext2_fs.h"
#include "ext2fsP.h"
static int db_dir_proc(ext2_filsys fs, struct ext2_db_entry2 *db_info,
void *priv_data);
errcode_t ext2fs_dblist_dir_iterate(ext2_dblist dblist,
int flags,
char *block_buf,
int (*func)(ext2_ino_t dir,
int entry,
struct ext2_dir_entry *dirent,
int offset,
int blocksize,
char *buf,
void *priv_data),
void *priv_data)
{
errcode_t retval;
struct dir_context ctx;
EXT2_CHECK_MAGIC(dblist, EXT2_ET_MAGIC_DBLIST);
ctx.dir = 0;
ctx.flags = flags;
if (block_buf)
ctx.buf = block_buf;
else {
retval = ext2fs_get_mem(dblist->fs->blocksize, &ctx.buf);
if (retval)
return retval;
}
ctx.func = func;
ctx.priv_data = priv_data;
ctx.errcode = 0;
retval = ext2fs_dblist_iterate2(dblist, db_dir_proc, &ctx);
if (!block_buf)
ext2fs_free_mem(&ctx.buf);
if (retval)
return retval;
return ctx.errcode;
}
static int db_dir_proc(ext2_filsys fs, struct ext2_db_entry2 *db_info,
void *priv_data)
{
struct ext2_inode inode;
struct dir_context *ctx;
int ret;
ctx = (struct dir_context *) priv_data;
ctx->dir = db_info->ino;
ctx->errcode = 0;
ctx->errcode = ext2fs_read_inode(fs, ctx->dir, &inode);
if (ctx->errcode)
return DBLIST_ABORT;
if (inode.i_flags & EXT4_INLINE_DATA_FL)
ret = ext2fs_inline_data_dir_iterate(fs, ctx->dir, ctx);
else
ret = ext2fs_process_dir_block(fs, &db_info->blk,
db_info->blockcnt, 0, 0,
priv_data);
if ((ret & BLOCK_ABORT) && !ctx->errcode)
return DBLIST_ABORT;
return 0;
}
|
