Server:MacSupport

Opcodes

All opcodes are found at login_opcodes_oldver.conf and listed below for convenience:

• OP_SessionReady=0x5900
• OP_LoginOSX=0x8e00
• OP_LoginPC=0x0100
• OP_ClientError=0x0200
• OP_ServerListRequest=0x4600
• OP_PlayEverquestRequest=0x4700
• OP_LoginUnknown1=0x4800
• OP_LoginUnknown2=0x4A00
• OP_PlayEverquestResponse=0x0021
• OP_ChatMessage=0x0016
• OP_LoginAccepted=0x0400
• OP_LoginComplete=0x8800
• OP_ServerName=0x4900
• OP_LoginBanner=0x5200
• OP_ServerListResponse=0x004a
• OP_Poll=0x0029
• OP_EnterChat=0x000f
• OP_PollResponse=0x0011

Login

When a client first authenticates to the loginserver, it sends the OP_LoginOSX opcode followed by the username/password and eqworld-52.989studios.com. This url is no longer used but rather parsed server-side to validate mac clients (see OP_LoginOSX and handle_login behavior).

The key difference between a Windows Client and OSX client successfully authenticating is the following of code that sends an extra packet:

string buf = server.options.GetNetworkIP();
auto outapp2 = new EQApplicationPacket(OP_ServerName, (uint32)buf.length() + 1);
strncpy((char*)outapp2->pBuffer, buf.c_str(), buf.length() + 1);
connection->QueuePacket(outapp2);
delete outapp2;
sentsessioninfo = true;

GetNetworkIP() pulls the world server's URL from you login.ini file and/or the database as mentioned previously. This leaves you with a packet containing "0x4900" and your server's URL which the client will then use to reach server select.

Server Selection

Mac Clients do not have a server select option. As a result, server selection is passed to them after successful login. While there is a way to have the client select a server based on an Apple IPC mechanism, the server is currently hardcoded as a configuration setting in `login.ini` as well as the `loginserversettings` table.