Lostarch at 21:50, 3 March 2026

2026-03-03T21:50:37Z

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	{{~~Hotline_Nav~~}}		{{HotlineNav}}
	== Development Tools & Libraries ==		== Development Tools & Libraries ==

Lostarch: Created page with "{{Hotline_Nav}} == Development Tools & Libraries == Building for the Hotline protocol in the modern era requires libraries that can handle Big-Endian binary structures and the TRTP handshake. Below are the recommended tools and resources for current developers. === Modern Libraries === ==== Python (Discord-Hotline Bridge) ==== The following Python script provides a stable foundation for a Discord-to-Hotline relay. It utilizes `asyncio` for non-blocking sock..."

2026-03-03T21:50:10Z

Created page with "{{Hotline_Nav}} == Development Tools & Libraries == Building for the Hotline protocol in the modern era requires libraries that can handle Big-Endian binary structures and the TRTP handshake. Below are the recommended tools and resources for current developers. === Modern Libraries === ==== Python (Discord-Hotline Bridge) ==== The following Python script provides a stable foundation for a Discord-to-Hotline relay. It utilizes <code>asyncio</code> for non-blocking sock..."

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{{Hotline_Nav}}
== Development Tools & Libraries ==

Building for the Hotline protocol in the modern era requires libraries that can handle Big-Endian binary structures and the TRTP handshake. Below are the recommended tools and resources for current developers.

=== Modern Libraries ===

==== Python (Discord-Hotline Bridge) ====
The following Python script provides a stable foundation for a Discord-to-Hotline relay. It utilizes <code>asyncio</code> for non-blocking socket communication and <code>discord.py</code> for the bot interface.
* '''Source:''' [[HL_Protocol:BridgeScript|View Python Bridge Source]]
* '''Key Features:''' Guest login (0x6b), Plain-text relay, and Webhook support.

==== Go-Hotline (ghotline) ====
A modern implementation of the Hotline protocol written in Go. Excellent for building high-performance trackers or automated bots.
* '''Capability:''' Full support for Transaction 107 (Login) and 200 (File Listing).
* '''Use Case:''' Server monitoring and high-speed indexing.

==== Hotline SDK (C/C++) ====
The original logic for many classic clients. While dated, these headers provide the exact struct definitions for <code>FILP</code> and <code>RFLT</code>.
* '''Note:''' Requires <code>#pragma pack(2)</code> or similar alignment settings to match the 68k/PPC memory alignment of the original protocol.

=== Protocol Debugging Tools ===

==== Wireshark (Custom Dissectors) ====
To debug raw hex traffic, Wireshark is indispensable.
* '''Filter:''' <code>tcp.port == 5500</code>
* '''Tip:''' Look for the <code>54 52 54 50</code> (TRTP) signature at the start of the stream to verify the handshake.

==== Hex Editors ====
Useful for inspecting the [[BinaryStructure|Flat File Objects (FILP)]] during upload/download debugging.
* '''Recommended:''' HxD (Windows), Hex Fiend (macOS), or 010 Editor.

=== External Resources ===
* '''Preterhuman.net:''' Archives of original Hotline documentation and early 1.2x source fragments.
* '''HLWiki Icons:''' Access the raw icon set directly via <code>https://hlwiki.com/icons/Icon_ID.png</code> for use in custom client UI.

[[Category:Hotline]]
[[Category:Development]]

DevelopmentTools - Revision history

Lostarch at 21:50, 3 March 2026