usr.bin/fstat/ntfs.c

   1 /*      $NetBSD: ntfs.c,v 1.11 2008/04/28 20:24:12 martin Exp $ */
   2
   3 /*-
   4  * Copyright (c) 1999 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Jaromir Dolecek.
   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 #include <sys/cdefs.h>
  33 __RCSID("$NetBSD: ntfs.c,v 1.11 2008/04/28 20:24:12 martin Exp $");
  34
  35 #include <sys/param.h>
  36 #include <sys/time.h>
  37 #include <sys/proc.h>
  38 #include <sys/stat.h>
  39 #include <sys/vnode.h>
  40 #include <sys/mount.h>
  41
  42 #include <ntfs/ntfs.h>
  43 #undef dprintf
  44 #include <ntfs/ntfs_inode.h>
  45
  46 #include <err.h>
  47 #include <kvm.h>
  48 #include "fstat.h"
  49
  50 int
  51 ntfs_filestat(struct vnode *vp, struct filestat *fsp)
  52 {
  53         struct ntnode ntnode;
  54         struct fnode fn;
  55         struct ntfsmount ntm;
  56
  57         /* to get the ntnode, we have to go in two steps - firstly
  58          * to read appropriate struct fnode and then getting the address
  59          * of ntnode and reading it's contents */
  60         if (!KVM_READ(VTOF(vp), &fn, sizeof (fn))) {
  61                 dprintf("can't read fnode at %p for pid %d", VTOF(vp), Pid);
  62                 return 0;
  63         }
  64         if (!KVM_READ(FTONT(&fn), &ntnode, sizeof (ntnode))) {
  65                 dprintf("can't read ntnode at %p for pid %d", FTONT(&fn), Pid);
  66                 return 0;
  67         }
  68         if (!KVM_READ(ntnode.i_mp, &ntm, sizeof (ntm))) {
  69                 dprintf("can't read ntfsmount at %p for pid %d",
  70                         FTONT(&fn), Pid);
  71                 return 0;
  72         }
  73
  74         fsp->fsid = ntnode.i_dev & 0xffff;
  75         fsp->fileid = ntnode.i_number;
  76         fsp->mode = (mode_t)ntm.ntm_mode | getftype(vp->v_type);
  77         fsp->size = fn.f_size;
  78         fsp->rdev = 0;  /* XXX */
  79         return 1;
  80 }