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Code: Select all
#!/usr/bin/env perl
package main;
use strict;
use Convert::Binary::C;
use Data::Dumper;
# Z <-> char
# C <-> unsigned char
# v <-> unsigned short
# V <-> unsigned long
#---------------------------------------------
# Create a new object and parse embedded code
#---------------------------------------------
my $c = Convert::Binary::C->new->parse(<<ENDC);
struct test1 {
unsigned char test1, test2;
unsigned short size;
unsigned long pages, amount;
struct auction {
unsigned long ID;
char seller[24];
unsigned short item, type, unknown, amount;
unsigned char identify, attribute, refine;
unsigned short card[4];
unsigned long price, buynow;
char buyer[24];
unsigned long timestamp;
} auction[amount];
};
struct test2 {
unsigned char test1, test2;
struct hotkey {
unsigned char type;
unsigned long ID;
unsigned short lvl;
} hotkey[];
};
ENDC
# configuring the Convert::Binary::C object to unpack with little endian byteorder
$c->configure(ByteOrder => 'LittleEndian');
my $packed1 = pack('C*',
0x52, 0x02, 0x05, 0x01, 0x01, 0x00, 0x00, 0x00,
0x03, 0x00, 0x00, 0x00, 0x12, 0x00, 0x00, 0x00,
0x48, 0x79, 0x70, 0x65, 0x72, 0x69, 0x6f, 0x6e,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0xb1, 0x04, 0x04, 0x00, 0x00, 0x00, 0x01, 0x00,
0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x39, 0x05, 0x00, 0x00, 0x3a,
0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0xa7, 0x8f, 0x6d, 0x4a, 0x13,
0x00, 0x00, 0x00, 0x48, 0x79, 0x70, 0x65, 0x72,
0x69, 0x6f, 0x6e, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0xfd, 0x08, 0x05, 0x00, 0x00,
0x00, 0x01, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xd2, 0x04,
0x00, 0x00, 0x2e, 0x16, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc8, 0x8f,
0x6d, 0x4a, 0x14, 0x00, 0x00, 0x00, 0x48, 0x79,
0x70, 0x65, 0x72, 0x69, 0x6f, 0x6e, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xb1, 0x04,
0x04, 0x00, 0x00, 0x00, 0x01, 0x00, 0x01, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0xd2, 0x04, 0x00, 0x00, 0xd7, 0x11, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0xe8, 0x8f, 0x6d, 0x4a);
my $packed2 = pack('H*', 'b902011c0000000a0000590200000000011a000000000001490000000a00014d0000000000014b000000000001220000000a00011d0000000900014a0000000000010f200000000001112000000000012a20000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000018e0000000000');
# configuring the Convert::Binary::C object to unpack char name[len] as string instead of array
$c->tag('test1.auction[0].seller', Format => 'String');
$c->tag('test1.auction[0].buyer', Format => 'String');
# unpacking from bytestream to perl hash using C struct
my $unpacked1 = $c->unpack('test1', $packed1);
print Dumper($unpacked1);
my $unpacked2 = $c->unpack('test2', $packed2);
print Dumper($unpacked2);
# re-packing from perl hash to bytestream using C struct
my $packed3 = $c->pack('test1', $unpacked1);
print unpack('H*', $packed3) . "\n\n";
my $packed4 = $c->pack('test2', $unpacked2);
print unpack('H*', $packed4) . "\n\n";Code: Select all
$VAR1 = {
'auction' => [
{
'seller' => 'Hyperion',
'ID' => 18,
'item' => 1201,
'buynow' => 1338,
'attribute' => 0,
'card' => [
0,
0,
0,
0
],
'amount' => 1,
'timestamp' => 1248694183,
'identify' => 1,
'unknown' => 0,
'refine' => 0,
'buyer' => '',
'price' => 1337,
'type' => 4
},
{
'seller' => 'Hyperion',
'ID' => 19,
'item' => 2301,
'buynow' => 5678,
'attribute' => 0,
'card' => [
0,
0,
0,
0
],
'amount' => 1,
'timestamp' => 1248694216,
'identify' => 1,
'unknown' => 0,
'refine' => 0,
'buyer' => '',
'price' => 1234,
'type' => 5
},
{
'seller' => 'Hyperion',
'ID' => 20,
'item' => 1201,
'buynow' => 4567,
'attribute' => 0,
'card' => [
0,
0,
0,
0
],
'amount' => 1,
'timestamp' => 1248694248,
'identify' => 1,
'unknown' => 0,
'refine' => 0,
'buyer' => '',
'price' => 1234,
'type' => 4
}
],
'amount' => 3,
'test1' => 82,
'pages' => 1,
'size' => 261,
'test2' => 2
};
$VAR1 = {
'hotkey' => [
{
'ID' => 28,
'lvl' => 10,
'type' => 1
},
{
'ID' => 601,
'lvl' => 0,
'type' => 0
},
{
'ID' => 26,
'lvl' => 0,
'type' => 1
},
{
'ID' => 73,
'lvl' => 10,
'type' => 1
},
{
'ID' => 77,
'lvl' => 0,
'type' => 1
},
{
'ID' => 75,
'lvl' => 0,
'type' => 1
},
{
'ID' => 34,
'lvl' => 10,
'type' => 1
},
{
'ID' => 29,
'lvl' => 9,
'type' => 1
},
{
'ID' => 74,
'lvl' => 0,
'type' => 1
},
{
'ID' => 8207,
'lvl' => 0,
'type' => 1
},
{
'ID' => 8209,
'lvl' => 0,
'type' => 1
},
{
'ID' => 8234,
'lvl' => 0,
'type' => 1
},
{
'ID' => 0,
'lvl' => 0,
'type' => 0
},
{
'ID' => 0,
'lvl' => 0,
'type' => 0
},
{
'ID' => 0,
'lvl' => 0,
'type' => 0
},
{
'ID' => 0,
'lvl' => 0,
'type' => 0
},
{
'ID' => 0,
'lvl' => 0,
'type' => 0
},
{
'ID' => 0,
'lvl' => 0,
'type' => 0
},
{
'ID' => 0,
'lvl' => 0,
'type' => 0
},
{
'ID' => 0,
'lvl' => 0,
'type' => 0
},
{
'ID' => 0,
'lvl' => 0,
'type' => 0
},
{
'ID' => 0,
'lvl' => 0,
'type' => 0
},
{
'ID' => 0,
'lvl' => 0,
'type' => 0
},
{
'ID' => 0,
'lvl' => 0,
'type' => 0
},
{
'ID' => 0,
'lvl' => 0,
'type' => 0
},
{
'ID' => 0,
'lvl' => 0,
'type' => 0
},
{
'ID' => 142,
'lvl' => 0,
'type' => 1
}
],
'test1' => 185,
'test2' => 2
};
520205010100000003000000120000004879706572696f6e00000000000000000000000000000000
b1040400000001000100000000000000000000390500003a05000000000000000000000000000000
0000000000000000000000a78f6d4a130000004879706572696f6e00000000000000000000000000
000000fd080500000001000100000000000000000000d20400002e16000000000000000000000000
0000000000000000000000000000c88f6d4a140000004879706572696f6e00000000000000000000
000000000000b1040400000001000100000000000000000000d2040000d711000000000000000000
0000000000000000000000000000000000e88f6d4a
b902011c0000000a0000590200000000011a000000000001490000000a00014d0000000000014b00
0000000001220000000a00011d0000000900014a0000000000010f20000000000111200000000001
2a200000000000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000000000000
000000000000000000000000000000000000000000000000018e0000000000Can you explain what you mean exactly or by the hand of an example?kLabMouse wrote:Technology
Nice!!!
Need just one addition, the eval for array elements number.
Code: Select all
short param_1
short param_2
struct {
something
} array[(packet_len-2-4-2)/struct_size]
short param_3
Code: Select all
// packet 0x155
struct PACKET_CZ_REQ_CHANGE_MEMBERPOS {
/* this+0x0 */ short PacketType
/* this+0x2 */ short PacketLength
struct MEMBER_POSITION_INFO memberInfo[...] {
/* this+0x0 */ int AID;
/* this+0x4 */ int GID;
/* this+0x8 */ int positionID;
}
}Code: Select all
// packet 0x155
struct PACKET_CZ_REQ_CHANGE_MEMBERPOS {
short PacketType;
short PacketLength;
struct MEMBER_POSITION_INFO {
int AID;
int GID;
int positionID;
} memberInfo[];
};to do a bytesToString, we can use something like this:The final and most powerful way to define a Dimension tag is to pass it a subroutine reference. The referenced subroutine can execute whatever code is neccessary to determine the size of the tagged array:As you can guess from the above code, the subroutine is being passed a reference to hash that stores the already unpacked part of the compound embedding the tagged array. This is the result:Code: Select all
sub get_size { my $m = shift; return $m->{hdr}{len}[0] / $m->{hdr}{len}[1]; } $c->tag('more_complex.data', Dimension => \&get_size); $u = $c->unpack('more_complex', $data);Code: Select all
$u = { 'hdr' => { 'len' => [ 42, 7 ] }, 'data' => [ 1, 2, 3, 4, 5, 6 ] };
Code: Select all
$c->tag('ProtoId', Hooks => { pack => \&ProtoId_pack,
unpack => \&ProtoId_unpack });Yep. But it's a big Update. so better 2.2 or even 3.0kali wrote:It doesn't have to be 3.0 could be 2.1.1 or 2.2 or something.