billywhizz

{
  type: "log",
  args: [
    {
      type: "string",
      value: "something interesting"
    }
  ],
  executionContextId: 1,

billywhizz

hi, i'm daniel. i'm a 16-year-old high school senior. in my free time, i hack billion dollar companies and build cool stuff.

about a month ago, a couple of friends and I found serious critical vulnerabilities on Mintlify, an AI documentation platform used by some of the top companies in the world.

i found a critical cross-site scripting vulnerability that, if abused, would let an attacker to inject malicious scripts into the documentation of numerous companies and steal credentials from users with a single link open.

(go read my friends' writeups (after this one))
how to hack discord, vercel, and more with one easy trick (eva)
Redacted by Counsel: A supply chain postmortem (MDL)

billywhizz

How to use clangd C/C++ LSP in any project

tl;dr: If you want to just know the method, skip to How to section

Clangd is a state-of-the-art C/C++ LSP that can be used in every popular text editors like Neovim, Emacs or VS Code. Even CLion uses clangd under the hood. Unfortunately, clangd requires compile_commands.json to work, and the easiest way to painlessly generate it is to use CMake.

For simple projects you can try to use Bear - it will capture compile commands and generate compile_commands.json. Although I could never make it work in big projects with custom or complicated build systems.

But what if I tell you you can quickly hack your way around that, and generate compile_commands.json for any project, no matter how compilcated? I have used that way at work for years, originaly because I used CLion which supported only CMake projects - but now I use that method succesfully with clangd and Neovim.

billywhizz

// stb_c_lexer.h 0.01 -- public domain Sean Barrett 2013
// lexer for making little C-like languages with recursive-descent parsers
//
// This file provides both the interface and the implementation.
// To instantiate the implementation,
//      #define STB_C_LEXER_IMPLEMENTATION
// in *ONE* source file, before #including this file.
//
// The default configuration is fairly close to a C lexer, although
// suffixes on integer constants are not handled (you can override this).

billywhizz

this will deadlock the process if we run it in same process as js

billywhizz

###################################################################
          Writing C software without the standard library
                           Linux Edition
###################################################################
There are many tutorials on the web that explain how to build a
simple hello world in C without the libc on AMD64, but most of them
stop there.

I will provide a more complete explanation that will allow you to
build yourself a little framework to write more complex programs.

billywhizz

#!/usr/bin/env python3
import socket
import struct
import fcntl

with open("/dev/vsock", "rb") as fd:
    r = fcntl.ioctl(fd, socket.IOCTL_VM_SOCKETS_GET_LOCAL_CID, "    ")
    cid = struct.unpack("I", r)[0]

    print("Local CID: {}".format(cid))

billywhizz

How large are large language models? (2025)

This aims to be factual information about the size of large language models. None of this document was written by AI. I do not include any information from leaks or rumors. The focus of this document is on base models (the raw text continuation engines, not 'helpful chatbot/assistants'). This is a view from a few years ago to today of one very tiny fraction of the larger LLM story that's happening.

History

• GPT-2,-medium,-large,-xl (2019): 137M, 380M, 812M, 1.61B. Source: openai-community/gpt2. Trained on the unreleased WebText dataset said to 40GB of Internet text - I estimate that to be roughly 10B tokens. You can see a list of the websites that went into that data set here domains.txt.
• GPT-3 aka davinci, davinci-002 (2020): 175B parameters. There is a good breakdown of how those parameters are 'spent' here [How d

billywhizz

# $ apt install rdiff
# $ rdiff --help
# Usage: rdiff [OPTIONS] signature [BASIS [SIGNATURE]]
#              [OPTIONS] delta SIGNATURE [NEWFILE [DELTA]]
#              [OPTIONS] patch BASIS [DELTA [NEWFILE]]

# Options:
#   -v, --verbose             Trace internal processing
#   -V, --version             Show program version
#   -?, --help                Show this help message

billywhizz

import { Stats } from './lib/bench.js'
import { SQL } from "bun";

const pool_size = 4

/*
CREATE TABLE  Test (
  id integer NOT NULL,
  PRIMARY KEY  (id)
);