Modules

Here is a list of all modules:

Memory allocation and deallocation	Memory allocation and deallocation functions and macros that should be used in UnrealIRCd
Channel mode API	This is the extended channel mode API, see also https://www.unrealircd.org/docs/Dev:Channel_Mode_API for more information
Message tag API	This is the message tags API (message-tags)
Hook API	Hooks trigger on "events", such as a new user connecting or joining a channel, see https://www.unrealircd.org/docs/Dev:Hook_API for background info
Client statuses / types	This specifies the current client status or the client type - see ClientStatus in particular
Client flags	Used for checking certain properties of clients, such as IsSecure() and IsULine()
List functions	These are the generic list functions that are used all around in UnrealIRCd
Command API	The command API - used by modules and the core to add commands, overrides, etc
Common structs	This shows the Client struct (any client), the User struct (a user), Server (a server) that are commonly accessed both in the core and by 3rd party coders
Channel access flags	Channel flags (privileges) of users on a channel
Find functions	Find a client, user (person), server or channel by name
Send functions	Send data to clients, servers, channels, IRCOps, etc