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65 lines
2.0 KiB
Perl
65 lines
2.0 KiB
Perl
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#! /usr/bin/perl
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#
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# hfsutils - tools for reading and writing Macintosh HFS volumes
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# Copyright (C) 1996-1998 Robert Leslie
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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#
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# $Id: hdisk.pl,v 1.6 1998/04/11 08:26:57 rob Exp $
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#
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die "Usage: $0 device-path\n" unless (@ARGV == 1);
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($disk) = @ARGV;
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format STDOUT_TOP =
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# Partition Type HFS Volume Name Start Length
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-------------------------------------------------------------------------------
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.
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format STDOUT =
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@# @<<<<<<<<<<<<<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<<<<<<<<<<<< @####### @########
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$bnum, $pmParType, $drVN, $pmPyPartStart, $pmPartBlkCnt
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.
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open(DISK, $disk) || die "$disk: $!\n";
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$bnum = 1;
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do {
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seek(DISK, 512 * $bnum, 0) || die "seek: $!\n";
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read(DISK, $block, 512) || die "read: $!\n";
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($pmSig, $pmMapBlkCnt, $pmPyPartStart, $pmPartBlkCnt, $pmParType) =
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(unpack('n2 N3 A32 A32 N10 A16', $block))[0, 2..4, 6];
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die "$disk: unsupported partition map\n" if ($pmSig == 0x5453);
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die "$disk: no partition map\n" unless ($pmSig == 0x504d);
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if ($pmParType eq 'Apple_HFS') {
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seek(DISK, 512 * ($pmPyPartStart + 2), 0) || die "seek: $!\n";
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read(DISK, $block, 512) || die "read: $!\n";
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($len, $drVN) = (unpack('n N2 n5 N2 n N n c A27', $block))[13, 14];
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$drVN = substr($drVN, 0, $len);
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} else {
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$drVN = '';
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}
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write;
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} while ($bnum++ < $pmMapBlkCnt);
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close(DISK);
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