As Google did not yield any results, I decided to ask it here.
I'd like to reverse the login sequence of a game (using gamespy). In this login sequence, first the game uses the gamespy protocol (that can be easily resolved with Aluigi's tool).
After this it sends a network packet to what seems to be a Master Server (This packet not encrypted). Then the game (I assume) is looking for an answer from the Master server (a challenge or some infos I don't know). The only problem is that the game's server is not public, so I only have the game's code to work with.
Is that something achievable or should I forget about it? I tried to mess around the typical winsocket functions (send, receive...) but apart the Gamespy protocol, I can't find any clues about the packet to the master server (except for the first packet the client sends).
If anyone could help, I'd really appreciate!