/usr/bin/pdbdump is in libpalm-perl 1:1.012-1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
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eval 'exec /usr/bin/perl -S $0 ${1+"$@"}'
if 0; # not running under some shell
#
# Dump a Palm PDB or PRC database.
#
# $Id: pdbdump,v 3.5 2002/04/10 00:58:28 arensb Exp $
use strict;
use Palm::PDB;
use Palm::Raw;
# Load handlers for the built-in apps by default
use Palm::Memo;
use Palm::Address;
use Palm::Datebook;
use Palm::Mail;
use Palm::ToDo;
use vars qw( $VERSION %PDBHandlers %PRCHandlers $hexdump );
$VERSION = sprintf "%d.%03d_%03d_%03d",
'$Revision: 3.5 $ ' =~ m{(\d+)(?:\.(\d+))};
*PDBHandlers = *Palm::PDB::PDBHandlers;
*PRCHandlers = *Palm::PDB::PRCHandlers;
&Palm::PDB::RegisterPRCHandlers("Palm::Raw",
[ "", "" ]
);
$hexdump = 1; # By default, print hex dumps of everything
# Parse command-line arguments
my $arg;
while (($arg = $ARGV[0]) =~ /^-/)
{
$arg = shift;
if (($arg eq "-h") || ($arg eq "-help") || ($arg eq "--help"))
{
print <<EOT;
Usage: $0 [options] pdb-file
Options:
-h, -help, --help This message.
-nohex Don't print hex dumps
-M<module> Load <module> (e.g., -MPalm::Address)
EOT
#'
exit 0;
} elsif ($arg =~ /^-M/)
{
eval "use $';";
} elsif ($arg eq "-nohex")
{
$hexdump = 0;
} else {
die "Unrecognized option: $arg\n";
}
}
my $fname = shift;
die "No such file: $fname\n" if ! -f $fname;
my $EPOCH_1904 = 2082844800; # Difference between Palm's
# epoch (Jan. 1, 1904) and
# Unix's epoch (Jan. 1, 1970),
# in seconds.
my $HeaderLen = 32+2+2+(9*4); # Size of database header
my $RecIndexHeaderLen = 6; # Size of record index header
my $IndexRecLen = 8; # Length of record index entry
my $IndexRsrcLen = 10; # Length of resource index entry
#%PDBHandlers = (); # Record handler map
#%PRCHandlers = (); # Resource handler map
#&Palm::PDB::rawread($fname);
&rawread($fname);
#package Palm::PDB; # XXX - Gross hack!
sub rawread
{
my $self = new Palm::Raw;
my $fname = shift; # Filename to read from
my $buf; # Buffer into which to read stuff
# Open database file
open PDB, "< $fname" or die "Can't open \"$fname\": $!\n";
binmode PDB; # Parse as binary file under MS-DOS
# Get the size of the file. It'll be useful later
seek PDB, 0, 2; # 2 == SEEK_END. Seek to the end.
$self->{_size} = tell PDB;
print "File size: $self->{_size}\n";
seek PDB, 0, 0; # 0 == SEEK_START. Rewind to the beginning.
# Read header
my $name;
my $attributes;
my $version;
my $ctime;
my $mtime;
my $baktime;
my $modnum;
my $appinfo_offset;
my $sort_offset;
my $type;
my $creator;
my $uniqueIDseed;
read PDB, $buf, $HeaderLen; # Read the PDB header
print "Database header:\n";
if ($hexdump)
{
&hexdump(" ", $buf);
print "\n";
}
# Split header into its component fields
($name, $attributes, $version, $ctime, $mtime, $baktime,
$modnum, $appinfo_offset, $sort_offset, $type, $creator,
$uniqueIDseed) =
unpack "a32 n n N N N N N N a4 a4 N", $buf;
($self->{name} = $name) =~ s/\0*$//;
$self->{attributes}{resource} = 1 if $attributes & 0x0001;
$self->{attributes}{"read-only"} = 1 if $attributes & 0x0002;
$self->{attributes}{"AppInfo dirty"} = 1 if $attributes & 0x0004;
$self->{attributes}{backup} = 1 if $attributes & 0x0008;
$self->{attributes}{"OK newer"} = 1 if $attributes & 0x0010;
$self->{attributes}{reset} = 1 if $attributes & 0x0020;
$self->{attributes}{open} = 1 if $attributes & 0x0040;
$self->{attributes}{launchable} = 1 if $attributes & 0x0200;
$self->{version} = $version;
$self->{ctime} = $ctime - $EPOCH_1904;
$self->{mtime} = $mtime - $EPOCH_1904;
$self->{baktime} = $baktime - $EPOCH_1904;
$self->{modnum} = $modnum;
# _appinfo_offset and _sort_offset are private fields
$self->{_appinfo_offset} = $appinfo_offset;
$self->{_sort_offset} = $sort_offset;
$self->{type} = $type;
$self->{creator} = $creator;
$self->{uniqueIDseed} = $uniqueIDseed;
print <<EOT;
Name: $name
Attributes: @{[sprintf("0x%02x", $attributes)]}
EOT
print " "x19;
print " LAUNCHABLE" if $self->{attributes}{launchable};
print " OPEN" if $self->{attributes}{open};
print " RESET" if $self->{attributes}{reset};
print " OKNEWER" if $self->{attributes}{"OK newer"};
print " BACKUP" if $self->{attributes}{backup};
print " APPINFO-DIRTY" if $self->{attributes}{"AppInfo dirty"};
print " READ-ONLY" if $self->{attributes}{"read-only"};
print " RESOURCE" if $self->{attributes}{resource};
print "\n";
print <<EOT;
Version: $version
Ctime: $ctime @{[scalar(localtime($ctime-$EPOCH_1904))]}
Mtime: $mtime @{[scalar(localtime($mtime-$EPOCH_1904))]}
Backup time: $baktime @{[scalar(localtime($baktime-$EPOCH_1904))]}
Mod number: $modnum
AppInfo offset: $appinfo_offset
Sort offset: $sort_offset
Type: $type
Creator: $creator
Unique ID seed: $uniqueIDseed
EOT
# Rebless this PDB object, depending on its type and/or
# creator. This allows us to magically invoke the proper
# &Parse*() function on the various parts of the database.
# Look for most specific handlers first, least specific ones
# last. That is, first look for a handler that deals
# specifically with this database's creator and type, then for
# one that deals with this database's creator and any type,
# and finally for one that deals with anything.
my $handler;
if ($self->{attributes}{resource})
{
# Look among resource handlers
$handler = $PRCHandlers{$self->{creator}}{$self->{type}} ||
$PRCHandlers{undef}{$self->{type}} ||
$PRCHandlers{$self->{creator}}{""} ||
$PRCHandlers{""}{""};
} else {
# Look among record handlers
$handler = $PDBHandlers{$self->{creator}}{$self->{type}} ||
$PDBHandlers{""}{$self->{type}} ||
$PDBHandlers{$self->{creator}}{""} ||
$PDBHandlers{""}{""};
}
if (defined($handler))
{
bless $self, $handler;
} else {
# XXX - This should probably return 'undef' or something,
# rather than die.
die "No handler defined for creator \"$creator\", type \"$type\"\n";
}
## Read record/resource index
# Read index header
read PDB, $buf, $RecIndexHeaderLen;
print "Record/resource index header:\n";
if ($hexdump)
{
&hexdump(" ", $buf);
print "\n";
}
my $next_index;
my $numrecs;
($next_index, $numrecs) = unpack "N n", $buf;
$self->{_numrecs} = $numrecs;
print <<EOT;
Next index: $next_index
# records: $numrecs
EOT
# Read the index itself
if ($self->{attributes}{resource})
{
&_load_rsrc_index($self, \*PDB);
} else {
&_load_rec_index($self, \*PDB);
}
# Ignore the two NUL bytes that are usually here. We'll seek()
# around them later.
# Read AppInfo block, if it exists
if ($self->{_appinfo_offset} != 0)
{
&_load_appinfo_block($self, \*PDB);
}
# Read sort block, if it exists
if ($self->{_sort_offset} != 0)
{
&_load_sort_block($self, \*PDB);
}
# Read record/resource list
if ($self->{attributes}{resource})
{
&_load_resources($self, \*PDB);
} else {
&_load_records($self, \*PDB);
}
# These keys were needed for parsing the file, but are not
# needed any longer. Delete them.
delete $self->{_index};
delete $self->{_numrecs};
delete $self->{_appinfo_offset};
delete $self->{_sort_offset};
delete $self->{_size};
close PDB;
}
# _load_rec_index
# Private function. Read the record index, for a record database
sub _load_rec_index
{
my $pdb = shift;
my $fh = shift; # Input file handle
my $i;
my $lastoffset = 0;
print "Record index:\n";
# Read each record index entry in turn
for ($i = 0; $i < $pdb->{_numrecs}; $i++)
{
my $buf; # Input buffer
print " Record index entry $i\n";
# Read the next record index entry
my $offset;
my $attributes;
my @id; # Raw ID
my $id; # Numerical ID
my $entry = {}; # Parsed index entry
read $fh, $buf, $IndexRecLen;
if ($hexdump)
{
&hexdump(" ", $buf);
print "\n";
}
# The ID field is a bit weird: it's represented as 3
# bytes, but it's really a double word (long) value.
($offset, $attributes, @id) = unpack "N C C3", $buf;
if ($offset == $lastoffset)
{
print STDERR "Record $i has same offset as previous one: $offset\n";
}
$lastoffset = $offset;
$entry->{offset} = $offset;
$entry->{attributes}{expunged} = 1 if $attributes & 0x80;
$entry->{attributes}{dirty} = 1 if $attributes & 0x40;
$entry->{attributes}{deleted} = 1 if $attributes & 0x20;
$entry->{attributes}{private} = 1 if $attributes & 0x10;
$entry->{id} = ($id[0] << 16) |
($id[1] << 8) |
$id[2];
# The lower 4 bits of the attributes field are
# overloaded: If the record has been deleted and/or
# expunged, then bit 0x08 indicates whether the record
# should be archived. Otherwise (if it's an ordinary,
# non-deleted record), the lower 4 bits specify the
# category that the record belongs in.
if (($attributes & 0xa0) == 0)
{
$entry->{category} = $attributes & 0x0f;
} else {
$entry->{attributes}{archive} = 1
if $attributes & 0x08;
}
print <<EOT;
Offset: $offset
Attributes: @{[sprintf("0x%02x", $attributes), keys %{$entry->{attributes}}]}
Category: $entry->{category}
ID: @{[sprintf("0x%02x%02x%02x", @id)]}
EOT
# Put this information on a temporary array
push @{$pdb->{_index}}, $entry;
}
}
# XXX - Make this print out debugging information
# _load_rsrc_index
# Private function. Read the resource index, for a resource database
sub _load_rsrc_index
{
my $pdb = shift;
my $fh = shift; # Input file handle
my $i;
print "Resource index:\n";
# Read each resource index entry in turn
for ($i = 0; $i < $pdb->{_numrecs}; $i++)
{
my $buf; # Input buffer
print " Resource index entry $i\n";
# Read the next resource index entry
my $type;
my $id;
my $offset;
my $entry = {}; # Parsed index entry
read $fh, $buf, $IndexRsrcLen;
if ($hexdump)
{
&hexdump(" ", $buf);
print "\n";
}
($type, $id, $offset) = unpack "a4 n N", $buf;
$entry->{type} = $type;
$entry->{id} = $id;
$entry->{offset} = $offset;
print <<EOT;
Offset: $offset
ID: $id
Type: $type
EOT
push @{$pdb->{_index}}, $entry;
}
}
# _load_appinfo_block
# Private function. Read the AppInfo block
sub _load_appinfo_block
{
my $pdb = shift;
my $fh = shift; # Input file handle
my $len; # Length of AppInfo block
my $buf; # Input buffer
print "AppInfo block:\n";
# Sanity check: make sure we're positioned at the beginning of
# the AppInfo block
if (tell($fh) > $pdb->{_appinfo_offset})
{
die "Bad AppInfo offset: expected ",
sprintf("0x%08x", $pdb->{_appinfo_offset}),
", but I'm at ",
tell($fh), "\n";
}
# Seek to the right place, if necessary
if (tell($fh) != $pdb->{_appinfo_offset})
{
seek PDB, $pdb->{_appinfo_offset}, 0;
}
# There's nothing that explicitly gives the size of the
# AppInfo block. Rather, it has to be inferred from the offset
# of the AppInfo block (previously recorded in
# $pdb->{_appinfo_offset}) and whatever's next in the file.
# That's either the sort block, the first data record, or the
# end of the file.
if ($pdb->{_sort_offset})
{
# The next thing in the file is the sort block
$len = $pdb->{_sort_offset} - $pdb->{_appinfo_offset};
} elsif ((defined $pdb->{_index}) && @{$pdb->{_index}})
{
# There's no sort block; the next thing in the file is
# the first data record
$len = $pdb->{_index}[0]{offset} -
$pdb->{_appinfo_offset};
} else {
# There's no sort block and there are no records. The
# AppInfo block goes to the end of the file.
$len = $pdb->{_size} - $pdb->{_appinfo_offset};
}
# Read the AppInfo block
read $fh, $buf, $len;
if ($hexdump)
{
&hexdump(" ", $buf);
print "\n";
}
# Tell the real class to parse the AppInfo block
$pdb->{appinfo} = $pdb->ParseAppInfoBlock($buf);
# Print out the parsed values
if (ref($pdb->{appinfo}) ne "")
{
&dumphash($pdb->{appinfo}, "\t");
print "\n";
}
}
# _load_sort_block
# Private function. Read the sort block.
sub _load_sort_block
{
my $pdb = shift;
my $fh = shift; # Input file handle
my $len; # Length of sort block
my $buf; # Input buffer
print "Sort block:\n";
# Sanity check: make sure we're positioned at the beginning of
# the sort block
if (tell($fh) > $pdb->{_sort_offset})
{
die "Bad sort block offset: expected ",
sprintf("0x%08x", $pdb->{_sort_offset}),
", but I'm at ",
tell($fh), "\n";
}
# Seek to the right place, if necessary
if (tell($fh) != $pdb->{_sort_offset})
{
seek PDB, $pdb->{_sort_offset}, 0;
}
# There's nothing that explicitly gives the size of the sort
# block. Rather, it has to be inferred from the offset of the
# sort block (previously recorded in $pdb->{_sort_offset})
# and whatever's next in the file. That's either the first
# data record, or the end of the file.
if (defined($pdb->{_index}))
{
# The next thing in the file is the first data record
$len = $pdb->{_index}[0]{offset} -
$pdb->{_sort_offset};
} else {
# There are no records. The sort block goes to the end
# of the file.
$len = $pdb->{_size} - $pdb->{_sort_offset};
}
# Read the AppInfo block
read $fh, $buf, $len;
if ($hexdump)
{
&hexdump(" ", $buf);
print "\n";
}
# XXX - Check to see if the sort block has some predefined
# structure. If so, it might be a good idea to parse the sort
# block here.
# Tell the real class to parse the sort block
$pdb->{sort} = $pdb->ParseSortBlock($buf);
}
# _load_records
# Private function. Load the actual data records, for a record database
# (PDB)
sub _load_records
{
my $pdb = shift;
my $fh = shift; # Input file handle
my $i;
print "Records:\n";
# Read each record in turn
for ($i = 0; $i < $pdb->{_numrecs}; $i++)
{
my $len; # Length of record
my $buf; # Input buffer
print " Record $i\n";
# Sanity check: make sure we're where we think we
# should be.
if (tell($fh) > $pdb->{_index}[$i]{offset})
{
# XXX - The two NULs are really optional.
# die "Bad offset for record $i: expected ",
# sprintf("0x%08x",
# $pdb->{_index}[$i]{offset}),
# " but it's at ",
# sprintf("[0x%08x]", tell($fh)), "\n";
}
# Seek to the right place, if necessary
if (tell($fh) != $pdb->{_index}[$i]{offset})
{
seek PDB, $pdb->{_index}[$i]{offset}, 0;
}
# Compute the length of the record: the last record
# extends to the end of the file. The others extend to
# the beginning of the next record.
if ($i == $pdb->{_numrecs} - 1)
{
# This is the last record
$len = $pdb->{_size} -
$pdb->{_index}[$i]{offset};
} else {
# This is not the last record
$len = $pdb->{_index}[$i+1]{offset} -
$pdb->{_index}[$i]{offset};
}
# Read the record
read $fh, $buf, $len;
if ($hexdump)
{
&hexdump(" ", $buf);
print "\n";
}
# Tell the real class to parse the record data. Pass
# &ParseRecord all of the information from the index,
# plus a "data" field with the raw record data.
my $record;
$record = $pdb->ParseRecord(
%{$pdb->{_index}[$i]},
"data" => $buf,
);
push @{$pdb->{records}}, $record;
# Print out the parsed values
&dumphash($record, "\t");
print "\n";
}
}
# _load_resources
# Private function. Load the actual data resources, for a resource database
# (PRC)
sub _load_resources
{
my $pdb = shift;
my $fh = shift; # Input file handle
my $i;
print "Resources:\n";
# Read each resource in turn
for ($i = 0; $i < $pdb->{_numrecs}; $i++)
{
my $len; # Length of record
my $buf; # Input buffer
print " Resource $i\n";
# Sanity check: make sure we're where we think we
# should be.
if (tell($fh) > $pdb->{_index}[$i]{offset})
{
die "Bad offset for resource $i: expected ",
sprintf("0x%08x",
$pdb->{_index}[$i]{offset}),
" but it's at ",
sprintf("0x%08x", tell($fh)), "\n";
}
# Seek to the right place, if necessary
if (tell($fh) != $pdb->{_index}[$i]{offset})
{
seek PDB, $pdb->{_index}[$i]{offset}, 0;
}
# Compute the length of the resource: the last
# resource extends to the end of the file. The others
# extend to the beginning of the next resource.
if ($i == $pdb->{_numrecs} - 1)
{
# This is the last resource
$len = $pdb->{_size} -
$pdb->{_index}[$i]{offset};
} else {
# This is not the last resource
$len = $pdb->{_index}[$i+1]{offset} -
$pdb->{_index}[$i]{offset};
}
# Read the resource
read $fh, $buf, $len;
if ($hexdump)
{
&hexdump(" ", $buf);
print "\n";
}
# Tell the real class to parse the resource data. Pass
# &ParseResource all of the information from the
# index, plus a "data" field with the raw resource
# data.
my $resource;
$resource = $pdb->ParseResource(
%{$pdb->{_index}[$i]},
"data" => $buf,
);
push @{$pdb->{resources}}, $resource;
# Print out the parsed values
&dumphash($resource, "\t");
print "\n";
}
}
sub hexdump
{
my $prefix = shift; # What to print in front of each line
my $data = shift; # The data to dump
my $maxlines = shift; # Max # of lines to dump
my $offset; # Offset of current chunk
for ($offset = 0; $offset < length($data); $offset += 16)
{
my $hex; # Hex values of the data
my $ascii; # ASCII values of the data
my $chunk; # Current chunk of data
last if defined($maxlines) && ($offset >= ($maxlines * 16));
$chunk = substr($data, $offset, 16);
($hex = $chunk) =~ s/./sprintf "%02x ", ord($&)/ges;
($ascii = $chunk) =~ y/\040-\176/./c;
printf "%s %-48s|%-16s|\n", $prefix, $hex, $ascii;
}
}
# XXX - Ought to have a &dumparray as well. The two can call each other
# recursively.
sub dumphash
{
my $hash = shift;
my $indent = shift;
my $key;
my $value;
while (($key, $value) = each %{$hash})
{
if (ref($value) eq "HASH")
{
print $indent, $key, ":\n";
&dumphash($value, $indent . "\t");
} elsif (ref($value) eq "ARRAY")
{
my($i,$j);
print $indent, $key, ":\n";
for ($i = 0; $i <= $#{$value}; $i++)
{
if (ref($value->[$i]) eq "HASH")
{
print $indent, " $i:\n";
&dumphash($value->[$i],
$indent . "\t");
} elsif (ref($value->[$i]) eq "ARRAY")
{
my @v2 = @{$value->[$i]};
for ($j = 0; $j <= $#v2; $j++)
{
print $indent,
"\t$i-$j: [$v2[$j]]\n";
}
}else {
print $indent,
"\t$i: [$value->[$i]]\n";
}
}
} else {
print $indent, $key, " -> [", $value, "]\n";
}
}
}
__END__
=head1 NAME
pdbdump - Print the contents of a Palm PDB file
=head1 SYNOPSIS
C<pdbdump> I<[options]> F<filename>
=head1 DESCRIPTION
C<pdbdump> reads a PalmOS F<.pdb> file, parses it, and prints its
contents. This includes both a hex dump of the raw data of each piece,
and a human-readable list of the various values, insofar as possible.
The aim of C<pdbdump> is to allow one to verify whether a particular
file is a well-formed PalmOS database file and if not, where the error
lies.
If the database is of a known type, C<pdbdump> parses the AppInfo
block and records. Otherwise, it simply prints out a hex dump of their
contents. C<pdbdump> includes, by default, support for most of the
built-in applications. Other helper modules may be loaded with the
C<-M> option.
=head1 OPTIONS
=over 4
=item -h -help --help
Print a usage message and exit.
=item -nohex
Don't print the hex dump of the various parts.
=item -MI<module>
C<use> the named module. This can be useful for loading additional
helper modules.
=back
=head1 BUGS
C<pdbdump> only recognizes record databases (C<.pdb> files), not
resource databases (C<.prc> files).
=head1 SEE ALSO
Palm::PDB(3)
=head1 AUTHOR
Andrew Arensburger <arensb@ooblick.com>
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