Can anyone post these functions? I can't get it right for the life of me. =(
UGH! Leave it to me to forget to call chr().
These should actually work.
/* Create a little-endian 16-bit integer (WORD) */
function make_int16($w) {
$A = (((int)$w & 0x00FF) >> 0);
$B = (((int)$w & 0xFF00) >> 8);
return chr($A) . chr($B);
}
/* Create a little-endian 32-bit integer (DWORD) */
function make_int32($d) {
$A = (((int)$d & 0x000000FF) >> 0);
$B = (((int)$d & 0x0000FF00) >> 8);
$C = (((int)$d & 0x00FF0000) >> 16);
$D = (((int)$d & 0xFF000000) >> 24);
return chr($A) . chr($B) . chr($C) . chr($D);
}
/* Parse a little-endian 16-bit integer (WORD) */
function get_int16($data) {
$A = (int)(substr($data, 0) & 0x000000FF);
$B = (int)(substr($data, 1) & 0x0000FF00);
return $A | $B;
}
/* Parse a little-endian 32-bit integer (DWORD) */
function get_int32() {
$A = ((int)substr($data, 0) & 0x000000FF);
$B = ((int)substr($data, 1) & 0x0000FF00);
$B = ((int)substr($data, 2) & 0x00FF0000);
$B = ((int)substr($data, 3) & 0xFF000000);
return $A | $B | $C |$D;
}
MakeDWORD works correctly but GetDWORD doesn't. Anyone want to take a stab at it?
Binary Data and Packets (http://forum.valhallalegends.com/index.php?topic=11709.0)
Wow Cloaked I forgot you wrote that, very nice.
Quote from: Warrior on December 17, 2005, 03:00 PM
Wow Cloaked I forgot you wrote that, very nice.
rofl "Warrior of clan x86" , can we say the new wannabe?
anyways just had to point out that every post you post here is irrelevant, that nothing u post actually is helpful and your a reputation whore.
:o
Yeah, where the hell is my report to moderator button?
EDIT -
I finally got it working, so I might as well post it! =)
<?
/*
* Create and parse integral data structures
*/
/* Create a little-endian 16-bit integer (WORD) */
function make_int16($w) {
$A = (((int)$w & 0x00FF) >> 0);
$B = (((int)$w & 0xFF00) >> 8);
return chr($A) . chr($B);
}
/* Create a little-endian 32-bit integer (DWORD) */
function make_int32($d) {
$A = (((int)$d & 0x000000FF) >> 0);
$B = (((int)$d & 0x0000FF00) >> 8);
$C = (((int)$d & 0x00FF0000) >> 16);
$D = (((int)$d & 0xFF000000) >> 24);
return chr($A) . chr($B) . chr($C) . chr($D);
}
/* Parse a little-endian 16-bit integer (WORD) */
function get_int16($data) {
$a = strrev(str_pad(dechex(ord(substr($data, 0, 1))), 2, '0', STR_PAD_LEFT));
$b = strrev(str_pad(dechex(ord(substr($data, 1, 1))), 2, '0', STR_PAD_LEFT));
return hexdec(strrev($a . $b));
}
/* Parse a little-endian 32-bit integer (DWORD) */
function get_int32($data) {
$a = strrev(str_pad(dechex(ord(substr($data, 0, 1))), 2, '0', STR_PAD_LEFT));
$b = strrev(str_pad(dechex(ord(substr($data, 1, 1))), 2, '0', STR_PAD_LEFT));
$c = strrev(str_pad(dechex(ord(substr($data, 2, 1))), 2, '0', STR_PAD_LEFT));
$d = strrev(str_pad(dechex(ord(substr($data, 3, 1))), 2, '0', STR_PAD_LEFT));
return hexdec(strrev($a . $b . $c . $d));
}
?>
Not bad you're getting pretty good at PHP :)
Quote from: Joe on December 22, 2005, 01:50 PM
<?
/* Parse a little-endian 32-bit integer (DWORD) */
function get_int32($data) {
$a = strrev(str_pad(dechex(ord(substr($data, 0, 1))), 2, '0', STR_PAD_LEFT));
$b = strrev(str_pad(dechex(ord(substr($data, 1, 1))), 2, '0', STR_PAD_LEFT));
$c = strrev(str_pad(dechex(ord(substr($data, 2, 1))), 2, '0', STR_PAD_LEFT));
$d = strrev(str_pad(dechex(ord(substr($data, 3, 1))), 2, '0', STR_PAD_LEFT));
return hexdec(strrev($a . $b . $c . $d));
}
?>
Oh. My. God.
Quote from: Joe on December 22, 2005, 01:50 PM
<?
/* Parse a little-endian 32-bit integer (DWORD) */
function get_int32($data) {
$a = strrev(str_pad(dechex(ord(substr($data, 0, 1))), 2, '0', STR_PAD_LEFT));
$b = strrev(str_pad(dechex(ord(substr($data, 1, 1))), 2, '0', STR_PAD_LEFT));
$c = strrev(str_pad(dechex(ord(substr($data, 2, 1))), 2, '0', STR_PAD_LEFT));
$d = strrev(str_pad(dechex(ord(substr($data, 3, 1))), 2, '0', STR_PAD_LEFT));
return hexdec(strrev($a . $b . $c . $d));
}
?>
Quote from: shadypalm88 on December 22, 2005, 04:16 PMOh. My. God.
Better way, please?
Quote from: rabbit on December 23, 2005, 09:35 AM
Quote from: Joe on December 22, 2005, 01:50 PM
<?
/* Parse a little-endian 32-bit integer (DWORD) */
function get_int32($data) {
$a = strrev(str_pad(dechex(ord(substr($data, 0, 1))), 2, '0', STR_PAD_LEFT));
$b = strrev(str_pad(dechex(ord(substr($data, 1, 1))), 2, '0', STR_PAD_LEFT));
$c = strrev(str_pad(dechex(ord(substr($data, 2, 1))), 2, '0', STR_PAD_LEFT));
$d = strrev(str_pad(dechex(ord(substr($data, 3, 1))), 2, '0', STR_PAD_LEFT));
return hexdec(strrev($a . $b . $c . $d));
}
?>
is that written yourself? http://www.php.net/manual/en/ref.strings.php
Quote from: Joe on December 29, 2005, 10:05 PM
Better way, please?
I already linked to a better way on this thread.
http://misc.ionws.com/binary.lib.phps
<?php
define('LITTLE_ENDIAN', 0);
define('BIG_ENDIAN', 1);
// Default byte order
if (!defined('BYTE_ORDER'))
define('BYTE_ORDER', LITTLE_ENDIAN);
function parse_word($word)
{
if (BYTE_ORDER == BIG_ENDIAN)
return (ord($word{0}) << 8) | ord($word{1});
else
return (ord($word{1}) << 8) | ord($word{0});
}
function make_word($word)
{
if (BYTE_ORDER == BIG_ENDIAN)
return chr(($word & 0xFF00) >> 8).chr($word & 0x00FF);
else
return chr($word & 0x00FF).chr(($word & 0xFF00) >> 8);
}
function parse_dword($dword)
{
if (BYTE_ORDER == BIG_ENDIAN) {
return (ord($dword{0}) << 24) | (ord($dword{1}) << 16) |
(ord($dword{2}) << 8) | ord($dword{3});
} else {
return (ord($dword{3}) << 24) | (ord($dword{2}) << 16) |
(ord($dword{1}) << 8) | ord($dword{0});
}
}
function make_dword($num)
{
if (BYTE_ORDER == BIG_ENDIAN) {
return chr(($num & 0xFF000000) >> 24).chr(($num & 0x00FF0000) >> 16).
chr(($num & 0x0000FF00) >> 8).chr($num & 0x000000FF);
} else {
return chr($num & 0x000000FF).chr(($num & 0x0000FF00) >> 8).
chr(($num & 0x00FF0000) >> 16).chr(($num & 0xFF000000) >> 24);
}
}
?>