1#!/usr/bin/env 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#
29
30#
31# Read and decode a SCSI disk's primary or grown defect list.
32#
33
34sub usage
35{
36    die "usage: scsi-defects raw-device-name [Glist|Plist]\n";
37}
38
39
40#
41# Main
42#
43
44&usage if $#ARGV < 0 || $#ARGV > 1;
45
46$ENV{'PATH'} = "/bin:/usr/bin:/sbin:/usr/sbin";
47
48$dev = $ARGV[0];
49
50# generic device name given?
51if ($dev =~ /^[so]d\d+$/) { $dev = "/dev/r${dev}.ctl"; }
52
53#
54# Select what you want to read.  PList include the primary defect list
55# from the factory.  GList is grown defects only.
56#
57if ($#ARGV > 0) {
58    if ($ARGV[1] =~ /^[Gg]/) { $glist = 1; $plist = 0; }
59    elsif ($ARGV[1] =~ /^[Pp]/) { $glist = 0; $plist = 1; }
60    else { &usage; }
61} else {
62    $glist = 1; $plist = 0;
63}
64
65open(PIPE, "scsi -f $dev " .
66     "-c '{ Op code} 37 0 0:3 v:1 v:1 5:3 0 0 0 0 4:i2 0' $plist $glist " .
67     "-i 4 '{ stuff } *i2 { Defect list length } i2' |") ||
68    die "Cannot pipe to scsi(8)\n";
69chop($amnt = <PIPE>);
70close(PIPE);
71
72if ($amnt == 0) {
73    print "There are no defects (in this list).\n";
74    exit 0;
75}
76
77print "There are " . $amnt / 8 . " defects in this list.\n";
78
79$amnt += 4;
80
81open(PIPE, "scsi -f $dev " .
82     "-c '{ Op code} 37 0 0:3 v:1 v:1 5:3 0 0 0 0 v:i2 0' $plist $glist " .
83     "$amnt -i $amnt - |") ||
84    die "Cannot pipe to scsi(8)\n";
85
86read(PIPE, $buf, 4);		# defect list header
87
88print "cylinder head  sector\n";
89
90while(read(PIPE, $buf, 8)) {
91    ($cylhi, $cyllo, $head, $sec) = unpack("CnCN", $buf);
92    printf "%8u %4u  %6u\n", $cylhi*65536+$cyllo, $head, $sec;
93}
94close(PIPE);
95