* Decoding and encoding is done into a single buffer, from raw buffers to avoid extraneous copies.
* Added base class holding all core logic for encoding, decoding, receiving and processing of the RCON protocol. This code was initially identical between all implementations of RCON, deduplicating this avoids bugs.
* Added more sophisticated error handling, stop right away when decoding for example fails.
* Added ability to have more than one active authenticated net console on the server. Controlled by cvar 'sv_rcon_maxconnections' (default 1).
* Max packet size for accepted, but not authenticated sockets is now controled by cvar 'sv_rcon_maxpacketsize' (default 1024).
* Fixed 'connect' socket bug preventing connection to IPv4 addresses, by making the method used by the listen socket and connect socket configurator shared (dual stack was disabled on connect, but not on listen).
* Removed extraneous member from the 'CSocketCreator' class, this member was a copy of the 'netadr_t' input, but nothing ever was done with it.
* Put initializer values inside brackets.
* Put logical AND conditions within parentheses.
* Put assignments within conditional statements within parentheses.
* Mark unused variables as such to suppress compiler warnings.
* Fix vftable shadow warnings caused by ConVar::CreateInternal (does not implement, only interface. Renamed to yield desired behavior).
* Fix 'never' initialized class members for 'CCVarIteratorInternal'.
* Return values in interface vftables that cannot be pure virtual.
* Removed duplicate json parsing that was part of a PR that required a small refactor.
* Only check if response buffer is empty when we are going to parse the error message (this helps finding bugs in master server, since failure to parse has an exception handler).
* Log private server token and error messages to dedicated server console.
* Use game's CNetAdr RCON and socket creator.
* Add support for constructing host from [ip]:port format in the netconsole client.
* Pass 'netadr_t' parameter by reference to 'CSocketCreator::OnSocketAccepted'.
* Promoted size types in CUtlBuffer to int64.
* Fixed bug where CUtlBuffer::GetPtr returns a 64bit pointer that was promoted from a 32bit integral type.
* Use int64/size_t for anything strlen, pointer subtraction, etc..
* Removed invalid structure alignment declarations.
* Used 'htonl'/'ntohl' for constructing the length prefix.
* Used static socket/address members instead of pointers.
* Used const qualifier where possible.
* Changed length prefix field type to 'u_long'.
* Removed extraneous include.
* Properly escaped percentage characters on the RCON game client for the ImGui console.
* Replaced the boolean 'fatal' parameter with a error code parameter, anything non-null will prompt a message (fatal) and terminate the process with given error code.
* Fixed bug where the global ostreamsink for spdlog did NOT get cleared in 'SQVM_PrintFunc' when cvar 'sq_showvmoutput' was < 3. Moved to global scope.
* Added error message for when detouring the process has failed, with the error code.
* Only call 'Plat_GetProcessUpTime()' once per log, (improves performance and fixes bug where the error message box would show a different time stamp than what is logged into the console or file).
* All TIER0 loggers only log to notify and console when the SDK engine has fully initialized and detoured all functions.
When fatal is set, the function will show a error dialogue, which will halt the process and close when the message is dismissed. Else we will end up in a crash.
* Implemented robust length-prefix framing logic for non-blocking sockets (previously used character sequences to determine length, but you cannot use character sequences on protocol buffers as its binary data. This logic should fix all problems regarding some commands not getting networked properly to the server and stuff not getting printed on the client).
* Increased buffer size to std::vector::max_size when netconsole is authenticated (MAX_NETCONSOLE_INPUT_LEN still remains enforced on accepted but not authenticated connections to prevent attackers from crashing the server).
* Process max 1024 bytes each recv buffer iteration.
* Additional optimizations and cleanup.
* Move render utils to dedicated file.
* Implement more render/mesh utils.
* Added structure for OverlayTriangle_t, OverlaySweptBox_t and OverlayCapsule_t.
OverlayCapsule_t has been modified to accommodate the size in r5 (2 new vectors).
** SERVER **
* Close redundant connections if max sockets have been reached.
* Ban if client keeps spamming without authing first (ignoring message).
* Check for whitelisted address before issuing bans (whitelisted address in ConVar 'sv_rcon_whitelist_address' will never get banned or get its connection terminated.
* Transmit SQVM and DevMsg logs over the wire to the net console.
** NETCON **
* IPv6 support.
* Close connection properly after FIN request.
* Prompt user to reconnect after connection has been terminated instead of closing the application.
* Add proper quit command.
** SDKLAUNCHER **
* Rename to 'launcher.exe' to describe its purpose better. Our logo gets printed nice and large on the console during startup.
** SDK **
* Cleanup.
* Fully rewritten protocol agnostic CNetAdr class
* Fully rebuilded legacy CNetAdr class
* Fully rebuilded dual-stack CSocketCreator class
* New project "netconsole" added (lightweight netconsole for RCON)
RCON is still work in progress
