rrampage

4 bulan yang laludiscuss

Fun read! I built a minimal Linux shell [0] in c and Zig last year which does not depend on libc. It was a great way to learn about execve, the new-ish clone3 syscall and how Linux starts a process. Parsing strings is the least fun part of the building the shell.

[0] https://gist.github.com/rrampage/5046b60ca2d040bcffb49ee38e8...

rrampage

7 bulan yang laludiscuss

Recurse center is awesome! The community is curious, kind and supportive. I did 2 batches there and each one expanded my horizons as a programmer.

rrampage

tahun laludiscuss

I've been building small programs in Zig, C and ARM64 assembly without relying on libc and only using Linux syscalls directly.

Some examples:

- A minimal C shell with built-ins like cd, pwd, type: https://gist.github.com/rrampage/5046b60ca2d040bcffb49ee38e8...

- Terminal Snake game which fits in a QR code using Linux syscalls for drawing: https://gist.github.com/rrampage/2a781662645dc2fcba45784eb58...

- HTTP server with sendfile support in ARM64 assembly: https://gist.github.com/rrampage/d31e75647a77badb3586ebae1e4...

I learned to handcraft a static ELF binary using just GNU assembler (no linker): https://gist.github.com/rrampage/74586d0a0a451f43b546b169d46... . Trying to see if I can craft a small assembler in ARM64

rrampage

tahun laludiscuss

The paper title is "Sandboxing: Foolproof Boundaries vs. Unbounded Foolishness"

rrampage

2 tahun yang laludiscuss

Yurichev's SAT/SMT by Example [0] is a great (free!) resource for learning how to model problems to SAT/SMT

[0] - https://smt.st/

rrampage

2 tahun yang laludiscuss

Storage cost is much higher. Express One Zone is $0.16 per GB while standard S3 is $0.023 per GB ( https://aws.amazon.com/s3/pricing/?nc=sn&loc=4 )

rrampage

2 tahun yang laludiscuss

Repos:

Snapshot - Capture a snapshot (or subset) of your Postgres database whilst transforming the data ( Link: https://github.com/snaplet/snapshot )

Copycat - Generate deterministic fake values (e.g to anonymize sensitive data) ( Link: https://github.com/snaplet/copycat )

Seed - Automatically seed your database with production-like dummy data based on your schema for local development and testing ( Link: https://github.com/snaplet/seed )

Submissions

Poison, redzones and shadows: inside KASAN

How to Train Your Goblin

Dealing with cancel safety in async Rust

Academic Research Papers in Open Source Code

PoC for Critical Lua Engine Vulnerabilities in Redis 7.4.5

Nothing fails like a history of success

When SSRF Is Enough: Full Docker Escape on Windows Docker Desktop(CVE-2025-9074)

AUR Chaos Malware: An Analysis

Perplexity is using stealth, undeclared crawlers to evade no-crawl directives

Firefox-patch-bin, librewolf-fix-bin AUR packages contain malware

How I Became the First Linux User in India

Understanding Quake's Fast Inverse Square Root

Pgconf.dev 2025 Wraps Up with Great Success in Montreal

A disk is a bunch of bits (2023)

Creative usernames and Spotify account hijacking

An Implementation of J – Roger Hui (1992) [pdf]

A Quick Journey into the Linux Kernel

How fast can you open 1000 files?

The Trouble with Leader Elections in distributed systems

Defining LLM Red Teaming

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