saagarjha’s gists

saagarjha / top10words.c

Created October 18, 2020 21:49

https://news.ycombinator.com/item?id=24818691

	#define _XOPEN_SOURCE 700
	#include <ctype.h>
	#include <ftw.h>
	#include <stdio.h>
	#include <stdlib.h>
	#include <string.h>

	// djb2 because it's short
	unsigned int hash(char *string) {
	unsigned int hash = 5381;

saagarjha / fixjit.c

Last active July 3, 2024 15:56

Fix applications that use JIT on Apple silicon but don't know about pthread_jit_write_protect_np

	// The usual: compile with clang libfixjit.c -arch arm64 -arch arm64e -shared -o libfixjit.dylib, add to DYLD_INSERT_LIBRARIES.

	#include <errno.h>
	#include <pthread.h>
	#include <stdatomic.h>

	__attribute__((constructor)) static void fix_jit() {
	unsigned long long mask;
	__asm__ volatile("mrs %0, s3_4_c15_c2_7" : "=r"(mask): :);
	__asm__ volatile("msr s3_4_c15_c2_7, %0" : : "r"(mask & 0xfffffffff0ffffff) :);

saagarjha / CreateGhidraApp.sh

Last active July 29, 2025 08:21

Creates a Ghidra.app bundle for macOS

	#!/bin/sh

	set -eu

	create_iconset() {
	mkdir -p Ghidra.iconset
	cat << EOF > Ghidra.iconset/Contents.json
	{
	"images":
	[

saagarjha / webserver.service

Created October 6, 2019 03:38

systemd service to run a webserver

	[Unit]
	Description=Python Web Server
	After=network.target

	[Service]
	Type=simple
	Restart=always
	User=root
	WorkingDirectory=/share
	ExecStart=/usr/bin/python3 -m http.server 80

saagarjha / hn_timestamps.py

Created August 6, 2019 16:25

Grab timestamps for all your Hacker News comments

	#!/usr/bin/env python3

	import json
	import re
	import urllib.request

	if __name__ == "__main__":
	comments = json.load(urllib.request.urlopen("https://hacker-news.firebaseio.com/v0/user/saagarjha.json"))["submitted"][::-1]
	for comment in comments:
	timestamp = json.load(urllib.request.urlopen("https://hacker-news.firebaseio.com/v0/item/" + str(comment) + ".json"))["time"]

saagarjha / webserver.sh

Created May 26, 2019 06:09

OpenRC init script to run a webserver

	#!/sbin/openrc-run

	start() {
	start-stop-daemon --start --chdir /share --background --exec /usr/bin/python3 -- -m http.server 80
	}

	stop() {
	start-stop-daemon --stop --chdir /share --exec /usr/bin/python3 -- -m http.server
	}

saagarjha / theme.py

Last active October 25, 2021 16:35

iTerm2 Script to change the theme automatically based on the system appearance

	#!/usr/bin/env python3

	import iterm2


	async def set_theme(connection, theme):
	# Themes have space-delimited attributes, one of which will be light or dark.
	parts = theme.split(" ")
	if "dark" in parts:
	preset = await iterm2.ColorPreset.async_get(connection, "Fixed Solarized Dark")

saagarjha / darknano.c

Last active March 22, 2019 04:46

Disables bright colors in nano on macOS

	#include <string.h>

	int overridden_strncasecmp(const char s1, const char s2, size_t n) {
	if (n != 6 \|\| strncmp(s2, "bright", n)) {
	return strncasecmp(s1, s2, n);
	} else {
	return !0;
	}
	}

saagarjha / iterm-set-profile.m

Last active February 8, 2021 23:51

Set the correct iTerm profile based on whether dark mode is enabled or not

	// Compile with clang -F/System/Library/PrivateFrameworks -framework SkyLight iterm-set-profile.m
	#import <Foundation/Foundation.h>

	BOOL SLSGetAppearanceThemeLegacy(void);

	int main() {
	if (SLSGetAppearanceThemeLegacy()) {
	printf("\033]50;SetProfile=Solarized Dark\a");
	} else {
	printf("\033]50;SetProfile=Solarized Light\a");

saagarjha / MyDocument.swift

Last active May 30, 2018 08:16 — forked from jeanetienne/MyDocument.swift

	//
	// Logic necessary to implement a "closing handler" for a NSDocument
	//
	// This is inspired by:
	// - https://stackoverflow.com/questions/49343307/best-practice-to-implement-canclosewithdelegateshouldclosecontextinfo
	// - https://github.com/keith/radars/blob/master/NSDocumentSwiftAnnotations/NSDocumentSwiftAnnotations/Document.swift
	// Keith's supporting documentation for his radar submission: http://www.openradar.me/33422662
	// Documentation:
	// - https://developer.apple.com/library/content/releasenotes/AppKit/RN-AppKitOlderNotes/
	// Paragraph called: "Advice for Overriders of Methods that Follow the delegate:didSomethingSelector:contextInfo: Pattern"

Saagar Jha saagarjha