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 Library
8 * General Public License, version 2.
9 * %End-Header%
10 */
11
12 #include <stdio.h>
13 #if HAVE_UNISTD_H
14 #include <unistd.h>
15 #endif
16 #include <string.h>
17 #include <time.h>
18
19 #include "ext2_fs.h"
20 #include "ext2fsP.h"
21
22 static int db_dir_proc(ext2_filsys fs, struct ext2_db_entry2 *db_info,
23 void *priv_data);
24
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)25 errcode_t ext2fs_dblist_dir_iterate(ext2_dblist dblist,
26 int flags,
27 char *block_buf,
28 int (*func)(ext2_ino_t dir,
29 int entry,
30 struct ext2_dir_entry *dirent,
31 int offset,
32 int blocksize,
33 char *buf,
34 void *priv_data),
35 void *priv_data)
36 {
37 errcode_t retval;
38 struct dir_context ctx;
39
40 EXT2_CHECK_MAGIC(dblist, EXT2_ET_MAGIC_DBLIST);
41
42 ctx.dir = 0;
43 ctx.flags = flags;
44 if (block_buf)
45 ctx.buf = block_buf;
46 else {
47 retval = ext2fs_get_mem(dblist->fs->blocksize, &ctx.buf);
48 if (retval)
49 return retval;
50 }
51 ctx.func = func;
52 ctx.priv_data = priv_data;
53 ctx.errcode = 0;
54
55 retval = ext2fs_dblist_iterate2(dblist, db_dir_proc, &ctx);
56
57 if (!block_buf)
58 ext2fs_free_mem(&ctx.buf);
59 if (retval)
60 return retval;
61 return ctx.errcode;
62 }
63
db_dir_proc(ext2_filsys fs,struct ext2_db_entry2 * db_info,void * priv_data)64 static int db_dir_proc(ext2_filsys fs, struct ext2_db_entry2 *db_info,
65 void *priv_data)
66 {
67 struct dir_context *ctx;
68 int ret;
69
70 ctx = (struct dir_context *) priv_data;
71 ctx->dir = db_info->ino;
72 ctx->errcode = 0;
73
74 ret = ext2fs_process_dir_block(fs, &db_info->blk,
75 db_info->blockcnt, 0, 0, priv_data);
76 if ((ret & BLOCK_ABORT) && !ctx->errcode)
77 return DBLIST_ABORT;
78 return 0;
79 }
80