busybox

/*

 * lookup.c --- ext2fs directory lookup operations

 * 

 * Copyright (C) 1993, 1994, 1994, 1995 Theodore Ts'o.

 *

 * %Begin-Header%

 * This file may be redistributed under the terms of the GNU Public

 * License.

 * %End-Header%

 */

​

#include <stdio.h>

#include <string.h>

#if HAVE_UNISTD_H

#include <unistd.h>

#endif

​

#include "ext2_fs.h"

#include "ext2fs.h"

​

struct lookup_struct  {

    const char  *name;

    int     len;

    ext2_ino_t  *inode;

    int     found;

};  

​

#ifdef __TURBOC__

 #pragma argsused

#endif

static int lookup_proc(struct ext2_dir_entry *dirent,

               int  offset EXT2FS_ATTR((unused)),

               int  blocksize EXT2FS_ATTR((unused)),

               char *buf EXT2FS_ATTR((unused)),

               void *priv_data)

{

    struct lookup_struct *ls = (struct lookup_struct *) priv_data;

​

    if (ls->len != (dirent->name_len & 0xFF))

        return 0;

    if (strncmp(ls->name, dirent->name, (dirent->name_len & 0xFF)))

        return 0;

    *ls->inode = dirent->inode;

    ls->found++;

    return DIRENT_ABORT;

}

​

​

errcode_t ext2fs_lookup(ext2_filsys fs, ext2_ino_t dir, const char *name,

            int namelen, char *buf, ext2_ino_t *inode)

{

    errcode_t   retval;

    struct lookup_struct ls;

​

    EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS);

​

    ls.name = name;

    ls.len = namelen;

    ls.inode = inode;

    ls.found = 0;

​

    retval = ext2fs_dir_iterate(fs, dir, 0, buf, lookup_proc, &ls);

    if (retval)