/*      $NetBSD: v7fs_dirent.c,v 1.3 2022/02/11 10:55:15 hannken Exp $  */

/*-
* Copyright (c) 2011 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by UCHIYAMA Yasushi.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/

#if HAVE_NBTOOL_CONFIG_H
#include "nbtool_config.h"
#endif

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: v7fs_dirent.c,v 1.3 2022/02/11 10:55:15 hannken Exp $");
#if defined _KERNEL_OPT
#include "opt_v7fs.h"
#endif

#ifdef _KERNEL
#include <sys/systm.h>
#include <sys/param.h>
#else
#include <stdio.h>
#include <string.h>
#endif

#include "v7fs.h"
#include "v7fs_impl.h"
#include "v7fs_endian.h"
#include "v7fs_inode.h"
#include "v7fs_dirent.h"

#ifdef V7FS_DIRENT_DEBUG
#define DPRINTF(fmt, args...)   printf("%s: " fmt, __func__, ##args)
#else
#define DPRINTF(fmt, args...)   ((void)0)
#endif

bool
v7fs_dirent_endian_convert(struct v7fs_self *fs, struct v7fs_dirent *dir, int n)
{
       struct v7fs_superblock *sb = &fs->superblock;
       int i;
       v7fs_ino_t ino;
       bool ok = true;

       for (i = 0; i < n; i++, dir++) {
               ino = V7FS_VAL16(fs, dir->inode_number);
               if (v7fs_inode_number_sanity(sb, ino)) {
                       DPRINTF("Invalid inode# %d %s\n", ino, dir->name);
                       ok = false;
               }
               dir->inode_number = ino;
       }

       return ok;
}

void
v7fs_dirent_filename(char *dst/* size must be V7FS_NAME_MAX + 1 */,
   const char *src, size_t srclen)
{

       if (srclen > V7FS_NAME_MAX)
               srclen = V7FS_NAME_MAX;

       memset(dst, 0, V7FS_NAME_MAX + 1);
       strncpy(dst, src, srclen);
}