Gabriel Cruz gmelodie

🤟

Computing stuff

Computer Scientist by ICMC/USP, trailling spaces serial killer. Interested in security, C, Python, Go, Rust, Open Source Software and Linux.

gmelodie / detrashify_acm.py

Created August 6, 2024 23:09

Remove entire publications from ACM Digital Library's exported .bib file

	from pybtex.database.input import bibtex
	from pybtex.database.output.bibtex import Writer
	from pybtex.errors import set_strict_mode
	import sys

	if __name__ == '__main__':
	if len(sys.argv) != 2:
	print('usage: python3 detrashify_acm.py /path/to/acm.bib')
	exit(1)

gmelodie / deadlock.rs

Last active February 16, 2024 22:28

Rust deadlock example with multiple threads

	// help from https://gist.github.com/wuct/b98f42dba91a8c08cc6ba2d820d94c1c
	//
	use std::sync::{Arc, Mutex};
	use std::thread;

	fn acquire_lock(a: Arc<Mutex<i32>>, b: Arc<Mutex<i32>>) {
	// note: if you do the commented out it doesn't deadlock, think about why that is
	// let mut a_num = *a.lock().unwrap();
	// a_num += 1;
	let mut a_num = a.lock().unwrap();

gmelodie / dec2bin-no-arrays.c

Created July 7, 2023 14:27

dec2bin in C without using arrays

	#include <stdio.h>
	#include <math.h>

	int main(int argc, char *argv[]) {
	int dec;
	scanf("%d", &dec);


	// figure out bits needed to represent number
	// 1. you can log(dec) base 2 or...

gmelodie / monitor-mode.sh

Last active May 26, 2023 19:04

Turns wireless monitor mode on/off

	if [ $# -ne 2 ]; then
	echo "usage: ./monitor-mode.sh INTERFACE [on\|off]"
	exit 1
	fi

	# if interface not exists
	sudo iw dev $1 info > /dev/null 2>&1
	if [ $? -ne 0 ]; then
	echo "unable to find device '$1'"
	exit 2

gmelodie / hello-world.txt

Created May 22, 2023 15:17

Badusb scripts for linux

	ID 1234:abcd Flipper Devices:Flipper Zero
	REM run echo command

	REM ---- open terminal (assuming shortcut is ctrl+alt+t)
	DELAY 1000
	HOLD CTRL
	HOLD ALT
	STRING t
	RELEASE CTRL
	RELEASE ALT

gmelodie / estuary-metrics-graph.py

Created December 19, 2022 19:16

Estuary metrics graph experiment

	import plotly.express as px
	import pandas as pd


	def variable_total_retrievals():
	df = pd.DataFrame(columns=['Name', 'Total Retrievals', 'Success Rate', 'Reputation'])
	points = 10_000
	success_rates = 5
	for total_retrievals in range(0, 100_000, 50):
	for i in range(success_rates):

gmelodie / estuary-api-v1.yaml

Last active November 21, 2022 14:34

Swagger docs for new estuary api (v1)

	swagger: '2.0'
	info:
	description: This is the API for the Estuary application.
	title: Estuary API
	termsOfService: http://estuary.tech
	contact:
	name: API Support
	url: https://docs.estuary.tech/feedback
	license:
	name: Apache 2.0 Apache-2.0 OR MIT

gmelodie / estuary-bash.sh

Created September 29, 2022 18:51

Estuary bash utilities and shortcuts


	estuary_set_auth() {
	export APIKEY=$1
	}

	estuary_create_collection() {
	coluuid=$(curl -X POST -H "Authorization: Bearer $APIKEY" "http://localhost:3004/collections/" -d '{ "name": "A new collection", "description": "A new collection test" }' -s \| jq \| grep uuid \| cut -d '"' -f 4)
	export LAST_COLLECTION=$coluuid
	echo $coluuid
	}

gmelodie / ideas.txt

Created July 27, 2022 14:16

Estuary/Autoretrieve stat ideas

	- announced CIDs to indexer
	- CIDs queries from autoretrieve
	- number of AR servers online
	- how many heartbeats in the last day (kinda useless imo but...)

gmelodie / gh-get-team-ssh-keys.sh

Created July 4, 2022 18:59

Get SSH keys for all the members of a github team


	APITOKEN="" # TODO: add your token here (create one: https://github.com/settings/tokens)
	# be sure to check if the token hasn't expired!



	# for ORG and TEAM, you can get those by navigating to your team on github
	# and seeing the url, which will be in the format:
	# https://github.com/orgs/{ORG}/teams/{TEAM}/discussions
	# e.g. https://github.com/orgs/application-research/teams/a-team/discussions