tools/tools/scsi-defects/scsi-defects.pl

   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
  35 sub 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 = $ARGV[0];
  50
  51 # generic device name given?
  52 if ($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 #
  58 if ($#ARGV > 0) {
  59     if ($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
  66 open(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 $glist " .
  68      "-i 4 '{ stuff } *i2 { Defect list length } i2' |") ||
  69     die "Cannot pipe to scsi(8)\n";
  70 chop($amnt = <PIPE>);
  71 close(PIPE);
  72
  73 if ($amnt == 0) {
  74     print "There are no defects (in this list).\n";
  75     exit 0;
  76 }
  77
  78 print "There are " . $amnt / 8 . " defects in this list.\n";
  79
  80 $amnt += 4;
  81
  82 open(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
  87 read(PIPE, $buf, 4);            # defect list header
  88
  89 print "cylinder head  sector\n";
  90
  91 while(read(PIPE, $buf, 8)) {
  92     ($cylhi, $cyllo, $head, $sec) = unpack("CnCN", $buf);
  93     printf "%8u %4u  %6u\n", $cylhi*65536+$cyllo, $head, $sec;
  94 }
  95 close(PIPE);