1#!/usr/pkg/bin/perl
2#
3# Copyright (C) 1997
4# 	Peter Dufault, Joerg Wunsch.  All rights reserved.
5#
6# Redistribution and use in source and binary forms, with or without
7# modification, are permitted provided that the following conditions
8# are met:
9# 1. Redistributions of source code must retain the above copyright
10#    notice, this list of conditions and the following disclaimer.
11# 2. Redistributions in binary form must reproduce the above copyright
12#    notice, this list of conditions and the following disclaimer in the
13#    documentation and/or other materials provided with the distribution.
14#
15# THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
16# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
19# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25# SUCH DAMAGE.
26#
27# $FreeBSD: src/tools/tools/scsi-defects/scsi-defects.pl,v 1.3 1999/08/28 00:54:32 peter Exp $
28# $DragonFly: src/tools/tools/scsi-defects/scsi-defects.pl,v 1.2 2003/06/17 04:29:11 dillon Exp $
29#
30
31#
32# Read and decode a SCSI disk's primary or grown defect list.
33#
34
35sub usage
36{
37    die "usage: scsi-defects raw-device-name [Glist|Plist]\n";
38}
39
40
41#
42# Main
43#
44
45&usage if $#ARGV < 0 || $#ARGV > 1;
46
47$ENV{'PATH'} = "/bin:/usr/bin:/sbin:/usr/sbin";
48
49$dev = $ARGV[0];
50
51# generic device name given?
52if ($dev =~ /^[so]d\d+$/) { $dev = "/dev/r${dev}.ctl"; }
53
54#
55# Select what you want to read.  PList include the primary defect list
56# from the factory.  GList is grown defects only.
57#
58if ($#ARGV > 0) {
59    if ($ARGV[1] =~ /^[Gg]/) { $glist = 1; $plist = 0; }
60    elsif ($ARGV[1] =~ /^[Pp]/) { $glist = 0; $plist = 1; }
61    else { &usage; }
62} else {
63    $glist = 1; $plist = 0;
64}
65
66open(PIPE, "scsi -f $dev " .
67     "-c '{ Op code} 37 0 0:3 v:1 v:1 5:3 0 0 0 0 4:i2 0' $plist $glist " .
68     "-i 4 '{ stuff } *i2 { Defect list length } i2' |") ||
69    die "Cannot pipe to scsi(8)\n";
70chop($amnt = <PIPE>);
71close(PIPE);
72
73if ($amnt == 0) {
74    print "There are no defects (in this list).\n";
75    exit 0;
76}
77
78print "There are " . $amnt / 8 . " defects in this list.\n";
79
80$amnt += 4;
81
82open(PIPE, "scsi -f $dev " .
83     "-c '{ Op code} 37 0 0:3 v:1 v:1 5:3 0 0 0 0 v:i2 0' $plist $glist " .
84     "$amnt -i $amnt - |") ||
85    die "Cannot pipe to scsi(8)\n";
86
87read(PIPE, $buf, 4);		# defect list header
88
89print "cylinder head  sector\n";
90
91while(read(PIPE, $buf, 8)) {
92    ($cylhi, $cyllo, $head, $sec) = unpack("CnCN", $buf);
93    printf "%8u %4u  %6u\n", $cylhi*65536+$cyllo, $head, $sec;
94}
95close(PIPE);
96