dblist_dir.c revision efc6f628e15de95bcd13e4f0ee223cb42115d520 
1/*
2 * dblist_dir.c --- iterate by directory entry
3 *
4 * Copyright 1997 by Theodore Ts'o
5 *
6 * %Begin-Header%
7 * This file may be redistributed under the terms of the GNU Public
8 * License.
9 * %End-Header%
10 *
11 */
12
13#include <stdio.h>
14#if HAVE_UNISTD_H
15#include <unistd.h>
16#endif
17#include <string.h>
18#include <time.h>
19
20#include "ext2_fs.h"
21#include "ext2fsP.h"
22
23static int db_dir_proc(ext2_filsys fs, struct ext2_db_entry *db_info,
24		       void *priv_data);
25
26errcode_t ext2fs_dblist_dir_iterate(ext2_dblist dblist,
27				    int	flags,
28				    char	*block_buf,
29				    int (*func)(ext2_ino_t dir,
30						int	entry,
31						struct ext2_dir_entry *dirent,
32						int	offset,
33						int	blocksize,
34						char	*buf,
35						void	*priv_data),
36				    void *priv_data)
37{
38	errcode_t		retval;
39	struct dir_context	ctx;
40
41	EXT2_CHECK_MAGIC(dblist, EXT2_ET_MAGIC_DBLIST);
42
43	ctx.dir = 0;
44	ctx.flags = flags;
45	if (block_buf)
46		ctx.buf = block_buf;
47	else {
48		retval = ext2fs_get_mem(dblist->fs->blocksize, &ctx.buf);
49		if (retval)
50			return retval;
51	}
52	ctx.func = func;
53	ctx.priv_data = priv_data;
54	ctx.errcode = 0;
55
56	retval = ext2fs_dblist_iterate(dblist, db_dir_proc, &ctx);
57
58	if (!block_buf)
59		ext2fs_free_mem(&ctx.buf);
60	if (retval)
61		return retval;
62	return ctx.errcode;
63}
64
65static int db_dir_proc(ext2_filsys fs, struct ext2_db_entry *db_info,
66		       void *priv_data)
67{
68	struct dir_context	*ctx;
69	int			ret;
70
71	ctx = (struct dir_context *) priv_data;
72	ctx->dir = db_info->ino;
73	ctx->errcode = 0;
74
75	ret = ext2fs_process_dir_block(fs, &db_info->blk,
76				       db_info->blockcnt, 0, 0, priv_data);
77	if ((ret & BLOCK_ABORT) && !ctx->errcode)
78		return DBLIST_ABORT;
79	return 0;
80}
81