[DELPHI]Return offset by AOB

[0xFF]

This is a little silly code that will return the offset by searching it via a static array of size 7 byte(s).

Made it for the patcher of QUAD RegistryCleaner 1.5.144, more to come, this code is first RLS, and could be optimized and tweaked using threads and better searching patterns, future updates to come.

Usage: ShowMessageFmt( '%x', [RetOffset(lol)]);

lol: array [0..6] of byte = ($FF, $FF, $FF, $FF, $FF, $FF, $FF);

<-- change FF's to your needs.

you can modify it and make it search bigger buffers, but be ware of getting "Eof", calculate file size and div by the amount of searches you're going to perfom.

type
 TStaticArray = ARray [0..6] Of Byte;

function RetOffset(const bSrc: TStaticArray): Integer;
const
  Bof = 0; // Beginning of file
var
  buffer: TStaticArray;
begin
  if (not FilePos(hFile) = Bof) then
   seek(hFile, Bof);  repeat
   BlockRead(hFile, buffer, sizeof(buffer));
   Application.ProcessMessages;
  until ((buffer[0] = bSrc[0]) and  (buffer[1] = bSrc[1]) and
         (buffer[2] = bSrc[2]) and  (buffer[3] = bSrc[3]) and
         (buffer[4] = bSrc[4]) and  (buffer[5] = bSrc[5]) and
         (buffer[6] = bSrc[6]) ); Result := FilePos(hFile)-7; // will return the beginning of the offset
end;

Edited October 22, 2010 by rotem156

[arcosteami]

if the reading is offset 0A 0B 0C I try and read ??0A0B it does not work

But I'm just nearby

Edited October 22, 2010 by arcosteami

[0xFF]

if the reading is offset 0A 0B 0C I try and read ??0A0B it does not work

But I'm just nearby

It's just a basic one, it doesn't have that. and i'm not going to improve it anyhow, i'll be using a pre-existing one.

i don't have the power to make this ****.