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zipdetails
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zipdetails
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#!/usr/bin/perl
# zipdetails
#
# Display info on the contents of a Zip file
#
use 5.010; # for unpack "Q<"
my $NESTING_DEBUG = 0 ;
BEGIN {
# Check for a 32-bit Perl
if (!eval { pack "Q", 1 }) {
warn "zipdetails requires 64 bit integers, ",
"this Perl has 32 bit integers.\n";
exit(1);
}
}
BEGIN { pop @INC if $INC[-1] eq '.' }
use strict;
use warnings ;
no warnings 'portable'; # for unpacking > 2^32
use feature qw(state say);
use IO::File;
use Encode;
use Getopt::Long;
use List::Util qw(min max);
my $VERSION = '4.005' ;
sub fatal_tryWalk;
sub fatal_truncated ;
sub info ;
sub warning ;
sub error ;
sub debug ;
sub fatal ;
sub topLevelFatal ;
sub internalFatal;
sub need ;
sub decimalHex;
use constant MAX64 => 0xFFFFFFFFFFFFFFFF ;
use constant MAX32 => 0xFFFFFFFF ;
use constant MAX16 => 0xFFFF ;
# Compression types
use constant ZIP_CM_STORE => 0 ;
use constant ZIP_CM_IMPLODE => 6 ;
use constant ZIP_CM_DEFLATE => 8 ;
use constant ZIP_CM_BZIP2 => 12 ;
use constant ZIP_CM_LZMA => 14 ;
use constant ZIP_CM_PPMD => 98 ;
# General Purpose Flag
use constant ZIP_GP_FLAG_ENCRYPTED_MASK => (1 << 0) ;
use constant ZIP_GP_FLAG_STREAMING_MASK => (1 << 3) ;
use constant ZIP_GP_FLAG_PATCHED_MASK => (1 << 5) ;
use constant ZIP_GP_FLAG_STRONG_ENCRYPTED_MASK => (1 << 6) ;
use constant ZIP_GP_FLAG_LZMA_EOS_PRESENT => (1 << 1) ;
use constant ZIP_GP_FLAG_LANGUAGE_ENCODING => (1 << 11) ;
use constant ZIP_GP_FLAG_PKWARE_ENHANCED_COMP => (1 << 12) ;
use constant ZIP_GP_FLAG_ENCRYPTED_CD => (1 << 13) ;
# All the encryption flags
use constant ZIP_GP_FLAG_ALL_ENCRYPT => (ZIP_GP_FLAG_ENCRYPTED_MASK | ZIP_GP_FLAG_STRONG_ENCRYPTED_MASK | ZIP_GP_FLAG_ENCRYPTED_CD );
# Internal File Attributes
use constant ZIP_IFA_TEXT_MASK => 1;
# Signatures for each of the headers
use constant ZIP_LOCAL_HDR_SIG => 0x04034b50;
use constant ZIP_DATA_HDR_SIG => 0x08074b50;
use constant ZIP_CENTRAL_HDR_SIG => 0x02014b50;
use constant ZIP_END_CENTRAL_HDR_SIG => 0x06054b50;
use constant ZIP64_END_CENTRAL_REC_HDR_SIG => 0x06064b50;
use constant ZIP64_END_CENTRAL_LOC_HDR_SIG => 0x07064b50;
use constant ZIP_DIGITAL_SIGNATURE_SIG => 0x05054b50;
use constant ZIP_ARCHIVE_EXTRA_DATA_RECORD_SIG => 0x08064b50;
use constant ZIP_SINGLE_SEGMENT_MARKER => 0x30304b50; # APPNOTE 6.3.10, sec 8.5.4
# Extra sizes
use constant ZIP_EXTRA_HEADER_SIZE => 2 ;
use constant ZIP_EXTRA_MAX_SIZE => 0xFFFF ;
use constant ZIP_EXTRA_SUBFIELD_ID_SIZE => 2 ;
use constant ZIP_EXTRA_SUBFIELD_LEN_SIZE => 2 ;
use constant ZIP_EXTRA_SUBFIELD_HEADER_SIZE => ZIP_EXTRA_SUBFIELD_ID_SIZE +
ZIP_EXTRA_SUBFIELD_LEN_SIZE;
use constant ZIP_EXTRA_SUBFIELD_MAX_SIZE => ZIP_EXTRA_MAX_SIZE -
ZIP_EXTRA_SUBFIELD_HEADER_SIZE;
use constant ZIP_EOCD_MIN_SIZE => 22 ;
use constant ZIP_LD_FILENAME_OFFSET => 30;
use constant ZIP_CD_FILENAME_OFFSET => 46;
my %ZIP_CompressionMethods =
(
0 => 'Stored',
1 => 'Shrunk',
2 => 'Reduced compression factor 1',
3 => 'Reduced compression factor 2',
4 => 'Reduced compression factor 3',
5 => 'Reduced compression factor 4',
6 => 'Imploded',
7 => 'Reserved for Tokenizing compression algorithm',
8 => 'Deflated',
9 => 'Deflate64',
10 => 'PKWARE Data Compression Library Imploding',
11 => 'Reserved by PKWARE',
12 => 'BZIP2',
13 => 'Reserved by PKWARE',
14 => 'LZMA',
15 => 'Reserved by PKWARE',
16 => 'IBM z/OS CMPSC Compression',
17 => 'Reserved by PKWARE',
18 => 'IBM/TERSE or Xceed BWT', # APPNOTE has IBM/TERSE. Xceed reuses it unofficially
19 => 'IBM LZ77 z Architecture (PFS)',
20 => 'Ipaq8', # see https://encode.su/threads/1048-info-zip-lpaq8
92 => 'Reference', # Winzip Only from version 25
93 => 'Zstandard',
94 => 'MP3',
95 => 'XZ',
96 => 'WinZip JPEG Compression',
97 => 'WavPack compressed data',
98 => 'PPMd version I, Rev 1',
99 => 'AES Encryption', # Apple also use this code for LZFSE compression in IPA files
);
my %OS_Lookup = (
0 => "MS-DOS",
1 => "Amiga",
2 => "OpenVMS",
3 => "Unix",
4 => "VM/CMS",
5 => "Atari ST",
6 => "HPFS (OS/2, NT 3.x)",
7 => "Macintosh",
8 => "Z-System",
9 => "CP/M",
10 => "Windows NTFS or TOPS-20",
11 => "MVS or NTFS",
12 => "VSE or SMS/QDOS",
13 => "Acorn RISC OS",
14 => "VFAT",
15 => "alternate MVS",
16 => "BeOS",
17 => "Tandem",
18 => "OS/400",
19 => "OS/X (Darwin)",
30 => "AtheOS/Syllable",
);
{
package Signatures ;
my %Lookup = (
# Map unpacked signature to
# decoder
# name
# central flag
# Core Signatures
::ZIP_LOCAL_HDR_SIG, [ \&::LocalHeader, "Local File Header", 0 ],
::ZIP_DATA_HDR_SIG, [ \&::DataDescriptor, "Data Descriptor", 0 ],
::ZIP_CENTRAL_HDR_SIG, [ \&::CentralHeader, "Central Directory Header", 1 ],
::ZIP_END_CENTRAL_HDR_SIG, [ \&::EndCentralHeader, "End Central Directory Record", 1 ],
::ZIP_SINGLE_SEGMENT_MARKER, [ \&::SingleSegmentMarker, "Split Archive Single Segment Marker", 0],
# Zip64
::ZIP64_END_CENTRAL_REC_HDR_SIG, [ \&::Zip64EndCentralHeader, "Zip64 End of Central Directory Record", 1 ],
::ZIP64_END_CENTRAL_LOC_HDR_SIG, [ \&::Zip64EndCentralLocator, "Zip64 End of Central Directory Locator", 1 ],
# Digital signature (pkzip)
::ZIP_DIGITAL_SIGNATURE_SIG, [ \&::DigitalSignature, "Digital Signature", 1 ],
# Archive Encryption Headers (pkzip) - never seen this one
::ZIP_ARCHIVE_EXTRA_DATA_RECORD_SIG, [ \&::ArchiveExtraDataRecord, "Archive Extra Record", 1 ],
);
sub decoder
{
my $signature = shift ;
return undef
unless exists $Lookup{$signature};
return $Lookup{$signature}[0];
}
sub name
{
my $signature = shift ;
return 'UNKNOWN'
unless exists $Lookup{$signature};
return $Lookup{$signature}[1];
}
sub titleName
{
my $signature = shift ;
uc name($signature);
}
sub hexValue
{
my $signature = shift ;
sprintf "0x%X", $signature ;
}
sub hexValue32
{
my $signature = shift ;
sprintf "0x%08X", $signature ;
}
sub hexValue16
{
my $signature = shift ;
sprintf "0x%04X", $signature ;
}
sub nameAndHex
{
my $signature = shift ;
return "'" . name($signature) . "' (" . hexValue32($signature) . ")"
}
sub isCentralHeader
{
my $signature = shift ;
return undef
unless exists $Lookup{$signature};
return $Lookup{$signature}[2];
}
#sub isValidSignature
#{
# my $signature = shift ;
# return exists $Lookup{$signature}}
#}
sub getSigsForScan
{
my %sigs =
# map { $_ => 1 }
# map { substr($_->[0], 2, 2) => $_->[1] } # don't want the initial "PK"
map { substr(pack("V", $_), 2, 2) => $_ }
keys %Lookup ;
return %sigs;
}
}
my %Extras = (
# Local Central
# ID Name Handler min size max size min size max size
0x0001, ['ZIP64', \&decode_Zip64, 0, 28, 0, 28],
0x0007, ['AV Info', undef], # TODO
0x0008, ['Extended Language Encoding', undef], # TODO
0x0009, ['OS/2 extended attributes', undef], # TODO
0x000a, ['NTFS FileTimes', \&decode_NTFS_Filetimes, 32, 32, 32, 32],
0x000c, ['OpenVMS', \&decode_OpenVMS, 4, undef, 4, undef],
0x000d, ['Unix', undef],
0x000e, ['Stream & Fork Descriptors', undef], # TODO
0x000f, ['Patch Descriptor', undef],
0x0014, ['PKCS#7 Store for X.509 Certificates', undef],
0x0015, ['X.509 Certificate ID and Signature for individual file', undef],
0x0016, ['X.509 Certificate ID for Central Directory', undef],
0x0017, ['Strong Encryption Header', \&decode_strong_encryption, 12, undef, 12, undef],
0x0018, ['Record Management Controls', undef],
0x0019, ['PKCS#7 Encryption Recipient Certificate List', undef],
0x0020, ['Reserved for Timestamp record', undef],
0x0021, ['Policy Decryption Key Record', undef],
0x0022, ['Smartcrypt Key Provider Record', undef],
0x0023, ['Smartcrypt Policy Key Data Record', undef],
# The Header ID mappings defined by Info-ZIP and third parties are:
0x0065, ['IBM S/390 attributes - uncompressed', \&decode_MVS, 4, undef, 4, undef],
0x0066, ['IBM S/390 attributes - compressed', undef],
0x07c8, ['Info-ZIP Macintosh (old, J. Lee)', undef],
0x10c5, ['Minizip CMS Signature', \&decode_Minizip_Signature, undef, undef, undef, undef], # https://github.com/zlib-ng/minizip-ng/blob/master/doc/mz_extrafield.md
0x1986, ['Pixar USD', undef], # TODO
0x1a51, ['Minizip Hash', \&decode_Minizip_Hash, 4, undef, 4, undef], # https://github.com/zlib-ng/minizip-ng/blob/master/doc/mz_extrafield.md
0x2605, ['ZipIt Macintosh (first version)', undef],
0x2705, ['ZipIt Macintosh v 1.3.5 and newer (w/o full filename)', undef],
0x2805, ['ZipIt Macintosh v 1.3.5 and newer', undef],
0x334d, ["Info-ZIP Macintosh (new, D. Haase's 'Mac3' field)", undef], # TODO
0x4154, ['Tandem NSK [TA]', undef], # TODO
0x4341, ['Acorn/SparkFS [AC]', undef], # TODO
0x4453, ['Windows NT security descriptor [SD]', \&decode_NT_security, 11, undef, 4, 4], # TODO
0x4690, ['POSZIP 4690', undef],
0x4704, ['VM/CMS', undef],
0x470f, ['MVS', undef],
0x4850, ['Info-ZIP PHold [PH]', undef],
0x4854, ['Theos [TH]', undef],
0x4b46, ['FWKCS MD5 [FK]', undef],
0x4c41, ['OS/2 access control list [AL]', undef],
0x4d49, ['Info-ZIP OpenVMS (obsolete) [IM]', undef],
0x4d63, ['Macintosh SmartZIP [cM]', undef], # TODO
0x4f4c, ['Xceed original location [LO]', undef],
0x5356, ['AOS/VS (binary ACL) [VS]', undef],
0x5455, ['Extended Timestamp [UT]', \&decode_UT, 1, 13, 1, 13],
0x554e, ['Xceed unicode extra field [UN]', \&decode_Xceed_unicode, 6, undef, 8, undef],
0x564B, ['Key-Value Pairs [KV]', \&decode_Key_Value_Pair, 13, undef, 13, undef],# TODO -- https://github.com/sozip/keyvaluepairs-spec/blob/master/zip_keyvalue_extra_field_specification.md
0x5855, ['Unix Extra type 1 [UX]', \&decode_UX, 12, 12, 8, 8],
0x5a4c, ['ZipArchive Unicode Filename [LZ]', undef], # https://www.artpol-software.com/ZipArchive
0x5a4d, ['ZipArchive Offsets Array [MZ]', undef], # https://www.artpol-software.com/ZipArchive
0x6375, ['Unicode Comment [uc]', \&decode_uc, 5, undef, 5, undef],
0x6542, ['BeOS/Haiku [Be]', undef], # TODO
0x6854, ['Theos [Th]', undef],
0x6C78, ['Extended Local File Header [xl]', undef], # TODO
0x7075, ['Unicode Path [up]', \&decode_up, 5, undef, 5, undef],
0x756e, ['ASi Unix [un]', \&decode_ASi_Unix], # TODO
0x7441, ['AtheOS [At]', undef],
0x7855, ['Unix Extra type 2 [Ux]', \&decode_Ux, 4,4, 0, 0 ],
0x7875, ['Unix Extra type 3 [ux]', \&decode_ux, 3, undef, 3, undef],
0x9901, ['AES Encryption', \&decode_AES, 7, 7, 7, 7],
0x9903, ['Reference', \&decode_Reference, 20, 20, 20, 20], # Added in WinZip ver 25
0xa11e, ['Data Stream Alignment', \&decode_DataStreamAlignment, 2, undef, 2, undef ],
0xA220, ['Open Packaging Growth Hint', \&decode_GrowthHint, 4, undef, 4, undef ],
0xCAFE, ['Java Executable', \&decode_Java_exe, 0, 0, 0, 0],
0xCDCD, ['Minizip Central Directory', \&decode_Minizip_CD, 8, 8, 8, 8], # https://github.com/zlib-ng/minizip-ng/blob/master/doc/mz_extrafield.md
0xd935, ['Android APK Alignment', undef], # TODO
0xE57a, ['ALZip Codepage', undef], # TODO
0xfb4a, ['SMS/QDOS', undef], # TODO
);
# Dummy entry only used in test harness, so only enable when ZIPDETAILS_TESTHARNESS is set
$Extras{0xFFFF} =
['DUMMY', \&decode_DUMMY, undef, undef, undef, undef]
if $ENV{ZIPDETAILS_TESTHARNESS} ;
sub extraFieldIdentifier
{
my $id = shift ;
my $name = $Extras{$id}[0] // "Unknown";
return "Extra Field '$name' (ID " . hexValue16($id) .")";
}
# Zip64EndCentralHeader version 2
my %HashIDLookup = (
0x0000 => 'none',
0x0001 => 'CRC32',
0x8003 => 'MD5',
0x8004 => 'SHA1',
0x8007 => 'RIPEMD160',
0x800C => 'SHA256',
0x800D => 'SHA384',
0x800E => 'SHA512',
);
# Zip64EndCentralHeader version 2, Strong Encryption Header & DecryptionHeader
my %AlgIdLookup = (
0x6601 => "DES",
0x6602 => "RC2 (version needed to extract < 5.2)",
0x6603 => "3DES 168",
0x6609 => "3DES 112",
0x660E => "AES 128",
0x660F => "AES 192",
0x6610 => "AES 256",
0x6702 => "RC2 (version needed to extract >= 5.2)",
0x6720 => "Blowfish",
0x6721 => "Twofish",
0x6801 => "RC4",
0xFFFF => "Unknown algorithm",
);
# Zip64EndCentralHeader version 2, Strong Encryption Header & DecryptionHeader
my %FlagsLookup = (
0x0001 => "Password required to decrypt",
0x0002 => "Certificates only",
0x0003 => "Password or certificate required to decrypt",
# Values > 0x0003 reserved for certificate processing
);
# Strong Encryption Header & DecryptionHeader
my %HashAlgLookup = (
0x8004 => 'SHA1',
);
my $FH;
my $ZIP64 = 0 ;
my $NIBBLES = 8;
my $LocalHeaderCount = 0;
my $CentralHeaderCount = 0;
my $InfoCount = 0;
my $WarningCount = 0;
my $ErrorCount = 0;
my $lastWasMessage = 0;
my $fatalDisabled = 0;
my $OFFSET = 0 ;
# Prefix data
my $POSSIBLE_PREFIX_DELTA = 0;
my $PREFIX_DELTA = 0;
my $TRAILING = 0 ;
my $PAYLOADLIMIT = 256;
my $ZERO = 0 ;
my $APK = 0 ;
my $START_APK = 0;
my $APK_LEN = 0;
my $CentralDirectory = CentralDirectory->new();
my $LocalDirectory = LocalDirectory->new();
my $HeaderOffsetIndex = HeaderOffsetIndex->new();
my $EOCD_Present = 0;
sub prOff
{
my $offset = shift;
my $s = offset($OFFSET);
$OFFSET += $offset;
return $s;
}
sub offset
{
my $v = shift ;
sprintf("%0${NIBBLES}X", $v);
}
# Format variables
my ($OFF, $ENDS_AT, $LENGTH, $CONTENT, $TEXT, $VALUE) ;
my $FMT1 = 'STDOUT1';
my $FMT2 = 'STDOUT2';
sub setupFormat
{
my $wantVerbose = shift ;
my $nibbles = shift;
my $width = '@' . ('>' x ($nibbles -1));
my $space = " " x length($width);
# See https://github.com/Perl/perl5/issues/14255 for issue with "^*" in perl < 5.22
# my $rightColumn = "^*" ;
my $rightColumn = "^" . ("<" x 132);
# Fill mode can split on space or newline chars
# Spliting on hyphen works differently from Perl 5.20 onwards
$: = " \n";
my $fmt ;
if ($wantVerbose) {
eval "format $FMT1 =
$width $width $width ^<<<<<<<<<<<^<<<<<<<<<<<<<<<<<<<< $rightColumn
\$OFF, \$ENDS_AT, \$LENGTH, \$CONTENT, \$TEXT, \$VALUE
$space $space $space ^<<<<<<<<<<<^<<<<<<<<<<<<<<<<<<<< $rightColumn~~
\$CONTENT, \$TEXT, \$VALUE
.
";
eval "format $FMT2 =
$width $width $width ^<<<<<<<<<<< ^<<<<<<<<<<<<<<<<<< $rightColumn
\$OFF, \$ENDS_AT, \$LENGTH, \$CONTENT, \$TEXT, \$VALUE
$space $space $space ^<<<<<<<<<<< ^<<<<<<<<<<<<<<<<<< $rightColumn~~
\$CONTENT, \$TEXT, \$VALUE
.
";
}
else {
eval "format $FMT1 =
$width ^<<<<<<<<<<<<<<<<<<<< $rightColumn
\$OFF, \$TEXT, \$VALUE
$space ^<<<<<<<<<<<<<<<<<<<< $rightColumn~~
\$TEXT, \$VALUE
.
";
eval "format $FMT2 =
$width ^<<<<<<<<<<<<<<<<<< $rightColumn
\$OFF, \$TEXT, \$VALUE
$space ^<<<<<<<<<<<<<<<<<< $rightColumn~~
\$TEXT, \$VALUE
.
"
}
no strict 'refs';
open($FMT1, ">&", \*STDOUT); select $FMT1; $| = 1 ;
open($FMT2, ">&", \*STDOUT); select $FMT2; $| = 1 ;
select 'STDOUT';
$| = 1;
}
sub mySpr
{
my $format = shift ;
return "" if ! defined $format;
return $format unless @_ ;
return sprintf $format, @_ ;
}
sub xDump
{
my $input = shift;
$input =~ tr/\0-\37\177-\377/./;
return $input;
}
sub hexDump
{
return uc join ' ', unpack('(H2)*', $_[0]);
}
sub hexDump16
{
return uc
join "\r",
map { join ' ', unpack('(H2)*', $_ ) }
unpack('(a16)*', $_[0]) ;
}
sub charDump2
{
sprintf "%v02X", $_[0];
}
sub charDump
{
sprintf "%vX", $_[0];
}
sub hexValue
{
return sprintf("0x%X", $_[0]);
}
sub hexValue32
{
return sprintf("0x%08X", $_[0]);
}
sub hexValue16
{
return sprintf("0x%04X", $_[0]);
}
sub outHexdump
{
my $size = shift;
my $text = shift;
my $limit = shift ;
return 0
if $size == 0;
# TODO - add a limit to data output
# if ($limit)
# {
# outSomeData($size, $text);
# }
# else
{
myRead(my $payload, $size);
out($payload, $text, hexDump16($payload));
}
return $size;
}
sub decimalHex
{
sprintf("%0*X (%u)", $_[1] // 0, $_[0], $_[0])
}
sub decimalHex0x
{
sprintf("0x%0*X (%u)", $_[1] // 0, $_[0], $_[0])
}
sub decimalHex0xUndef
{
return 'Unknown'
if ! defined $_[0];
return decimalHex0x @_;
}
sub out
{
my $data = shift;
my $text = shift;
my $format = shift;
my $size = length($data) ;
$ENDS_AT = offset($OFFSET + ($size ? $size - 1 : 0)) ;
$OFF = prOff($size);
$LENGTH = offset($size) ;
$CONTENT = hexDump($data);
$TEXT = $text;
$VALUE = mySpr $format, @_;
no warnings;
write $FMT1 ;
$lastWasMessage = 0;
}
sub out0
{
my $size = shift;
my $text = shift;
my $format = shift;
$ENDS_AT = offset($OFFSET + ($size ? $size - 1 : 0)) ;
$OFF = prOff($size);
$LENGTH = offset($size) ;
$CONTENT = '...';
$TEXT = $text;
$VALUE = mySpr $format, @_;
write $FMT1;
skip($FH, $size);
$lastWasMessage = 0;
}
sub out1
{
my $text = shift;
my $format = shift;
$ENDS_AT = '' ;
$OFF = '';
$LENGTH = '' ;
$CONTENT = '';
$TEXT = $text;
$VALUE = mySpr $format, @_;
write $FMT1;
$lastWasMessage = 0;
}
sub out2
{
my $data = shift ;
my $text = shift ;
my $format = shift;
my $size = length($data) ;
$ENDS_AT = offset($OFFSET + ($size ? $size - 1 : 0)) ;
$OFF = prOff($size);
$LENGTH = offset($size);
$CONTENT = hexDump($data);
$TEXT = $text;
$VALUE = mySpr $format, @_;
no warnings;
write $FMT2;
$lastWasMessage = 0;
}
sub Value
{
my $letter = shift;
if ($letter eq 'C')
{ return decimalHex($_[0], 2) }
elsif ($letter eq 'v')
{ return decimalHex($_[0], 4) }
elsif ($letter eq 'V')
{ return decimalHex($_[0], 8) }
elsif ($letter eq 'Q<')
{ return decimalHex($_[0], 16) }
else
{ internalFatal undef, "here letter $letter"}
}
sub outer
{
my $name = shift ;
my $unpack = shift ;
my $size = shift ;
my $cb1 = shift ;
my $cb2 = shift ;
myRead(my $buff, $size);
my (@value) = unpack $unpack, $buff;
my $hex = Value($unpack, @value);
if (defined $cb1) {
my $v ;
if (ref $cb1 eq 'CODE') {
$v = $cb1->(@value) ;
}
else {
$v = $cb1 ;
}
$v = "'" . $v unless $v =~ /^'/;
$v .= "'" unless $v =~ /'$/;
$hex .= " $v" ;
}
out $buff, $name, $hex ;
$cb2->(@value)
if defined $cb2 ;
return $value[0];
}
sub out_C
{
my $name = shift ;
my $cb1 = shift ;
my $cb2 = shift ;
outer($name, 'C', 1, $cb1, $cb2);
}
sub out_v
{
my $name = shift ;
my $cb1 = shift ;
my $cb2 = shift ;
outer($name, 'v', 2, $cb1, $cb2);
}
sub out_V
{
my $name = shift ;
my $cb1 = shift ;
my $cb2 = shift ;
outer($name, 'V', 4, $cb1, $cb2);
}
sub out_Q
{
my $name = shift ;
my $cb1 = shift ;
my $cb2 = shift ;
outer($name, 'Q<', 8, $cb1, $cb2);
}
sub outSomeData
{
my $size = shift;
my $message = shift;
my $redact = shift ;
# return if $size == 0;
if ($size > 0) {
if ($size > $PAYLOADLIMIT) {
my $before = $FH->tell();
out0 $size, $message;
} else {
myRead(my $buffer, $size );
$buffer = "X" x $size
if $redact;
out $buffer, $message, xDump $buffer ;
}
}
}
sub outSomeDataParagraph
{
my $size = shift;
my $message = shift;
my $redact = shift ;
return if $size == 0;
print "\n";
outSomeData($size, $message, $redact);
}
sub unpackValue_C
{
Value_v(unpack "C", $_[0]);
}
sub Value_C
{
return decimalHex($_[0], 2);
}
sub unpackValue_v
{
Value_v(unpack "v", $_[0]);
}
sub Value_v
{
return decimalHex($_[0], 4);
}
sub unpackValue_V
{
Value_V(unpack "V", $_[0]);
}
sub Value_V
{
return decimalHex($_[0] // 0, 8);
}
sub unpackValue_Q
{
my $v = unpack ("Q<", $_[0]);
Value_Q($v);
}
sub Value_Q
{
return decimalHex($_[0], 16);
}
sub read_Q
{
my $b ;
myRead($b, 8);
return ($b, unpack ("Q<" , $b));
}
sub read_V
{
my $b ;
myRead($b, 4);
return ($b, unpack ("V", $b));
}
sub read_v
{
my $b ;
myRead($b, 2);
return ($b, unpack "v", $b);
}
sub read_C
{
my $b ;
myRead($b, 1);
return ($b, unpack "C", $b);
}
sub seekTo
{
my $offset = shift ;
my $loc = shift ;
$loc = SEEK_SET
if ! defined $loc ;
$FH->seek($offset, $loc);
$OFFSET = $FH->tell();
}
sub rewindRelative
{
my $offset = shift ;
$FH->seek(-$offset, SEEK_CUR);
# $OFFSET -= $offset;
$OFFSET = $FH->tell();
}
sub deltaToNextSignature
{
my $start = $FH->tell();
my $got = scanForSignature(1);
my $delta = $FH->tell() - $start ;
seekTo($start);
if ($got)
{
return $delta ;
}
return 0 ;
}
sub scanForSignature
{
my $walk = shift // 0;
# $count is only used to when 'walk' is enabled.
# Want to scan for a PK header at the start of the file.
# All other PK headers are should be directly after the previous PK record.
state $count = 0;
$count += $walk;
my %sigs = Signatures::getSigsForScan();
my $start = $FH->tell();
# TODO -- Fix this?
if (1 || $count <= 1) {
my $last = '';
my $offset = 0;
my $buffer ;
BUFFER:
while ($FH->read($buffer, 1024 * 1000))
{
my $combine = $last . $buffer ;
my $ix = 0;
while (1)
{
$ix = index($combine, "PK", $ix) ;
if ($ix == -1)
{
$last = '';
next BUFFER;
}
my $rest = substr($combine, $ix + 2, 2);
if (! $sigs{$rest})
{
$ix += 2;
next;
}
# possible match
my $here = $FH->tell();
seekTo($here - length($combine) + $ix);
my $name = Signatures::name($sigs{$rest});
return $sigs{$rest};
}
$last = substr($combine, $ix+4);
}
}
else {
die "FIX THIS";
return ! $FH->eof();
}
# printf("scanForSignature %X\t%X (%X)\t%s\n", $start, $FH->tell(), $FH->tell() - $start, 'NO MATCH') ;
return 0;
}
my $is64In32 = 0;
my $opt_verbose = 0;
my $opt_scan = 0;
my $opt_walk = 0;
my $opt_Redact = 0;
my $opt_utc = 0;
my $opt_want_info_mesages = 1;
my $opt_want_warning_mesages = 1;
my $opt_want_error_mesages = 1;
my $opt_want_message_exit_status = 0;
my $exit_status_code = 0;
my $opt_help =0;