A simple port of libcurl 7.65.3 with BearSSL 0.6 for the Original Xbox, plus a small on-console test program to verify networking, HTTP, and HTTPS/TLS features on real hardware.

This project is mainly for Xbox homebrew developers who want working HTTP/HTTPS support using libcurl on the OG Xbox.

Credits

Current Project

libcurl + BearSSL integration, updates, and test suite
Extended by Applesauceman (2026)

Based On

Original libcurl Xbox port — Team Resurgent & Crunchbite
https://github.com/Team-Resurgent/libcurl-Update
Original BearSSL Xbox port — Team Resurgent
https://github.com/Team-Resurgent/BearSSL-OG

What is libcurl?

libcurl is a widely used networking library that lets programs transfer data using protocols like:

HTTP / HTTPS
FTP
and more (depending on build)

It handles:

connections
DNS
redirects
uploads & downloads
headers
authentication
TLS/SSL

It’s used in thousands of projects (including browsers, package managers, and game tools).

What is BearSSL?

BearSSL is a small, efficient SSL/TLS library designed for constrained systems.

In this port it provides:

HTTPS support
TLS handshakes
encryption
certificate handling
session reuse (faster reconnects)

It was chosen because it fits well within Original Xbox memory and CPU limits.

What This Project Provides

libcurl 7.65.3 ported to Original Xbox
BearSSL 0.6 integrated for HTTPS
Xbox-compatible networking using XNet
A simple test suite app that runs on the console
Debug output via XBDM

Features Tested

The included test program checks that libcurl works correctly on Xbox:

Networking

Ethernet + DHCP startup
DNS resolution
Raw TCP connection to port 443

HTTP

GET / POST
Custom headers
User-Agent
Redirect handling
Timeouts
Large downloads

HTTPS / TLS

HTTPS GET
TLS handshake
Optional certificate verification
TLS version testing
Session resumption (faster reconnects)

Upload / Download

Multipart file upload
PUT / DELETE / PATCH
Download to T:\ (E:\TDATA\00000000) drive
Range requests (partial download)

Security Features

TLS session cache
Certificate pinning API (basic)

Debug Output

The test app shows:

On screen

PASS / FAIL / SKIP per test
HTTP codes, bytes, timing

In XBDM debug log

Full HTTP request headers
TLS handshake messages
SSL record debug (for troubleshooting)

Building (General)

This project targets the Original Xbox XDK environment.

Typical steps:

Build libcurl + BearSSL for Xbox (static libraries).
Link them into an Xbox title project.
Run the included test program on hardware or devkit.

(Exact steps depend on your XDK / build setup.)

Requirements

Original Xbox
Working Ethernet connection (DHCP)
XBDM recommended for debug output

Test Program

When run, the test app:

Initializes graphics + console
Starts network and waits for DHCP
Runs HTTP and HTTPS tests
Prints a summary (passed / failed / skipped)
Stays running so results remain visible

Notes

Some HTTPS verification tests may skip if a CA bundle is not configured.
Uses public endpoints like httpbin.org for testing.
Files are downloaded to T:\ (E:\TDATA\00000000) during file tests.

License

This project includes:

libcurl (libcurl license)
BearSSL (BearSSL license)

See upstream projects for full license details.

Purpose

This repo is mainly for:

Bringing modern-ish HTTP/HTTPS to Original Xbox homebrew
Testing TLS behavior on real hardware
Providing a base for Xbox apps that need web/network features

Languages

C 85.7%

C++ 7.2%

Makefile 5.7%

Perl 0.5%

CMake 0.4%

Other 0.4%

README.md Unescape Escape

XboxCurl — libcurl + BearSSL for Original Xbox