sys/fs/v7fs/v7fs_dirent.c

   1 /*      $NetBSD: v7fs_dirent.c,v 1.2 2011/07/18 21:51:49 apb 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 1.2 2011/07/18 21:51:49 apb 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
  62 bool
  63 v7fs_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
  82 void
  83 v7fs_dirent_filename(char *dst/* size must be V7FS_NAME_MAX + 1 */,
  84     const char *src)
  85 {
  86
  87         strncpy(dst, src, V7FS_NAME_MAX);
  88         dst[V7FS_NAME_MAX] = '\0';
  89 }