Client MD5 Check

[Bahmut]

Hello,

I've got an idea for the client and wanted to ask if someone know if this exists or if it is doable.

I want my client to send something like a MD5 Checksum of the Client EXE or some other identifying packet to the server so that you can only use one specific Diffed-Client for a server. Is something like this possible via a special diff or something?

Yust wanted to ask because I haven't found any info for it.

MfG Bahmut

[xazax]

IDK if the clien has such capabilites, which is achievable with diffing. however what you can do is, create a dll, and hook the send function (use detours library). Once the dll is loaded, calculate the md5, and send it to your server. Of course you'll also have to adjust the server side.

[Bahmut]

Hmm haven't thought about this way but I will see if I can create something like this because it would be nice if I can control which exe my users are using to play the game so noone can get any unfair advantages by using another diffed exe

[Sirius_White]

Take a look at CA packet 0x0204, there is a stub in src/login/login.c.