1/*	$NetBSD: v7fs_dirent.c,v 1.3 2022/02/11 10:55:15 hannken Exp $	*/
2
3/*-
4 * Copyright (c) 2011 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by UCHIYAMA Yasushi.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#if HAVE_NBTOOL_CONFIG_H
33#include "nbtool_config.h"
34#endif
35
36#include <sys/cdefs.h>
37__KERNEL_RCSID(0, "$NetBSD: v7fs_dirent.c,v 1.3 2022/02/11 10:55:15 hannken Exp $");
38#if defined _KERNEL_OPT
39#include "opt_v7fs.h"
40#endif
41
42#ifdef _KERNEL
43#include <sys/systm.h>
44#include <sys/param.h>
45#else
46#include <stdio.h>
47#include <string.h>
48#endif
49
50#include "v7fs.h"
51#include "v7fs_impl.h"
52#include "v7fs_endian.h"
53#include "v7fs_inode.h"
54#include "v7fs_dirent.h"
55
56#ifdef V7FS_DIRENT_DEBUG
57#define	DPRINTF(fmt, args...)	printf("%s: " fmt, __func__, ##args)
58#else
59#define	DPRINTF(fmt, args...)	((void)0)
60#endif
61
62bool
63v7fs_dirent_endian_convert(struct v7fs_self *fs, struct v7fs_dirent *dir, int n)
64{
65	struct v7fs_superblock *sb = &fs->superblock;
66	int i;
67	v7fs_ino_t ino;
68	bool ok = true;
69
70	for (i = 0; i < n; i++, dir++) {
71		ino = V7FS_VAL16(fs, dir->inode_number);
72		if (v7fs_inode_number_sanity(sb, ino)) {
73			DPRINTF("Invalid inode# %d %s\n", ino, dir->name);
74			ok = false;
75		}
76		dir->inode_number = ino;
77	}
78
79	return ok;
80}
81
82void
83v7fs_dirent_filename(char *dst/* size must be V7FS_NAME_MAX + 1 */,
84    const char *src, size_t srclen)
85{
86
87	if (srclen > V7FS_NAME_MAX)
88		srclen = V7FS_NAME_MAX;
89
90	memset(dst, 0, V7FS_NAME_MAX + 1);
91	strncpy(dst, src, srclen);
92}
93