source: MondoRescue/branches/stable/mindi-busybox/e2fsprogs/ext2fs/lookup.c @ 821

Last change on this file since 821 was 821, checked in by Bruno Cornec, 14 years ago

Addition of busybox 1.2.1 as a mindi-busybox new package
This should avoid delivering binary files in mindi not built there (Fedora and Debian are quite serious about that)

File size: 1.4 KB
Line 
1/*
2 * lookup.c --- ext2fs directory lookup operations
3 *
4 * Copyright (C) 1993, 1994, 1994, 1995 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#include <stdio.h>
13#include <string.h>
14#if HAVE_UNISTD_H
15#include <unistd.h>
16#endif
17
18#include "ext2_fs.h"
19#include "ext2fs.h"
20
21struct lookup_struct  {
22    const char  *name;
23    int     len;
24    ext2_ino_t  *inode;
25    int     found;
26};
27
28#ifdef __TURBOC__
29# pragma argsused
30#endif
31static int lookup_proc(struct ext2_dir_entry *dirent,
32               int  offset EXT2FS_ATTR((unused)),
33               int  blocksize EXT2FS_ATTR((unused)),
34               char *buf EXT2FS_ATTR((unused)),
35               void *priv_data)
36{
37    struct lookup_struct *ls = (struct lookup_struct *) priv_data;
38
39    if (ls->len != (dirent->name_len & 0xFF))
40        return 0;
41    if (strncmp(ls->name, dirent->name, (dirent->name_len & 0xFF)))
42        return 0;
43    *ls->inode = dirent->inode;
44    ls->found++;
45    return DIRENT_ABORT;
46}
47
48
49errcode_t ext2fs_lookup(ext2_filsys fs, ext2_ino_t dir, const char *name,
50            int namelen, char *buf, ext2_ino_t *inode)
51{
52    errcode_t   retval;
53    struct lookup_struct ls;
54
55    EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS);
56
57    ls.name = name;
58    ls.len = namelen;
59    ls.inode = inode;
60    ls.found = 0;
61
62    retval = ext2fs_dir_iterate(fs, dir, 0, buf, lookup_proc, &ls);
63    if (retval)
64        return retval;
65
66    return (ls.found) ? 0 : EXT2_ET_FILE_NOT_FOUND;
67}
68
69
Note: See TracBrowser for help on using the repository browser.