[Release] CheckClientVersion Compare-BugFix

lollo_9_1 · 04/20/2013, 17:01

If u don't know, in the client and in the game there's a "number" (a const char* converted as a number with atoi in game, ps. atoi evaluates to 0 if the "number" contains characters not-digits)
The default value is 1215955205 (g_stClientVersion), if the client version is smaller than the game ur character'll disconnect in 10 seconds with a message like this "U must patch the client to play" (u can declare it in locale_string.txt)

The problem is this:

Code:

client 1215955205 server 1215955205 = no logout
client 1215955204 server 1215955205 = logout
client 1215955206 server 1215955205 = no logout [bug]
client 9999999999 server 1215955205 = no logout [bug]

Yes, if clientversion > serverversion, the character'll not disconnect!

Here a dif to fix this problem:

Code:

This difference file has been created by IDA Pro

game_r2089M
000E0373: 8E 84

Code:

This difference file has been created by IDA Pro

game_r34083
000F4904: 8E 84

Code:

This difference file has been created by IDA Pro

game_r40250
00100819: 8E 84

Code:

This difference file has been created by IDA Pro

game_r40267
001000C9: 8E 84

Code:

This difference file has been created by IDA Pro

game_r40424
00100A79: 8E 84

With this edit, if clientversion != serverversion = character'll always disconnect!

serq · 04/20/2013, 17:17

No one is using it anyway.

.Rebel · 04/20/2013, 17:20

Quote:

Originally Posted by serq

No one is using it anyway.

no one use 2089 thats why and because many of us guys just know can change client version just some weeks ago

tanks lollo_9_1 that very cool from u release that

serq · 04/20/2013, 17:33

Quote:

Originally Posted by .Rebel

no one use 2089 thats why and because many of us guys just know can change client version just some weeks ago

tanks lollo_9_1 that very cool from u release that

weeks ? you mean years. At lest we knew it. Let me see

Code:

http://www.mpcforum.pl/topic/285168-tutsprawdzanie-wersji/

29.01.2011

xP3NG3Rx · 04/20/2013, 17:43

Thanks, but I already corrected myself almost two months ago.

I wanted to release it.. But I forget

Here is my prewritten post:

Spoiler

Here is a little fix for this cool stuff.
This dif change the JLE in 'if' to JZ.
TESTED! Works, but the clientversion define with config is not working.
(clientversion: 1215955206)
You have to change the clientversion in game file on offset: 2FE3F7 in game_r2089M_32.

The original function is:

Code:

if [serverCV] > [binaryCV] do
	send(warn_message)
	do_logout()

In Pseudo:

Spoiler

With the dif:

Code:

if [serverCV] != [binaryCV] do
	send(warn_message)
	do_logout()

In Pseudo:

Spoiler

CV: ClientVersion

Here is the dif file for Infinity game file game_r2089M_32

Code:

This difference file is created by The Interactive Disassembler

game_r2089M_32
000E0373: 8E 84

qAleXso · 10/27/2013, 15:57

The game34083 does not work ...

~~[SA]Tears aka.[BlackBite]~~ · 10/27/2013, 16:18

it work, tested :3

i mean on my game it works :d which version you have stripped? not stripped 8 mb? not stripped with func names 62 mb?

Marius Sorin · 10/27/2013, 16:48

Tested on 8mb version and not working

qAleXso · 10/27/2013, 18:40

Quote:

Originally Posted by [SA]Tears aka.[BlackBite]

it work, tested :3

i mean on my game it works :d which version you have stripped? not stripped 8 mb? not stripped with func names 62 mb?

My Game has 6 MB.

~~Shutox~~ · 10/27/2013, 18:45

Not working ^^.
But thanks.

~~[SA]Tears aka.[BlackBite]~~ · 10/28/2013, 04:20

hmm i8 have the ~63mb version and there it works

Marius Sorin · 10/28/2013, 11:37

Strange , maybe in 6~8MB some bytes are changed ..

~~[SA]Tears aka.[BlackBite]~~ · 10/28/2013, 11:58

possible that the offsets/bytes are different and thats the reason why it work only on my game

~~Sean_Derulo~~ · 10/28/2013, 12:02

Funtkuniert nicht!
Doesn´t Work!

amukaçi35 · 10/28/2013, 12:45

63MB r34083 game test %100 working

6 ~~ 8 mb fail