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@dropmeaword
dropmeaword / browser_history.md
Last active March 5, 2026 11:39
Playing around with Chrome's history

Browser histories

Unless you are using Safari on OSX, most browsers will have some kind of free plugin that you can use to export the browser's history. So that's probably the easiest way. The harder way, which seems to be what Safari wants is a bit more hacky but it will also work for other browsers. Turns out that most of them, including Safari, have their history saved in some kind of sqlite database file somewhere in your home directory.

The OSX Finder cheats a little bit and doesn't show us all the files that actually exist on our drive. It tries to protect us from ourselves by hiding some system and application-specific files. You can work around this by either using the terminal (my preferred method) or by using the Cmd+Shft+G in Finder.

Finder

Once you locate the file containing the browser's history, copy it to make a backup just in case we screw up.

@vasanthk
vasanthk / System Design.md
Last active March 29, 2026 04:14
System Design Cheatsheet

System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

Basic Steps

  1. Clarify and agree on the scope of the system
  • User cases (description of sequences of events that, taken together, lead to a system doing something useful)
    • Who is going to use it?
    • How are they going to use it?
@briancroom
briancroom / Swift.md
Last active February 6, 2024 18:26
How to create a Swift modular library

I am trying to determine if it is possible to build a Swift dynamic library which is itself composed of one of more private modules, without needing to expose to that fact to outside users. My hope was that I could build the private module as a static library, which would be linked into the primary (dynamic) library. The dylib could then be deployed together with its swiftmodule and swiftdoc and be imported, with the private module and its symbols not being exposed at all.

Unfortunately, what I'm currently observing seems to indicate that the private module's swiftmodule also has to be available for the primary library to be successfully imported.

This can be reproduced as follows. I have the following directory structure:

./Greeter/Logger/Logger.swift:

public func log(_ message: String) {
@matthewaveryusa
matthewaveryusa / grab_io_kbm.c
Created May 20, 2016 03:13
linux grab io from keyboard and mouse
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <linux/input.h>
#include <time.h>
#include <stdint.h>
int main(int argc, char* argv[]){
sleep(1);
/*
* SEP firmware split tool
*
* Copyright (c) 2017 xerub
*/
#include <fcntl.h>
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>

Sadly I don't have a dev device on iOS 10, but for anyone playing around with zIVA caring about the kernel task port:

Starting with iOS 10.3 (and macOS 10.12.4), Apple changed convert_port_to_locked_task (and a few other port-to-something conversion functions) to blacklist the kernel task by means of a direct check. As a result, you can still obtain the kernel task port, but almost all APIs will simply treat it like MACH_PORT_NULL, thus rendering it useless. The check is a simple pointer comparison though, so it can be circumvented by just remapping the task struct at an additional virtual address and creating a new port from that with a ROP equivalent of:

vm_map_remap(
    kernel_map,
    &remap_addr,
    sizeof(task_t),
    0,

VM_FLAGS_ANYWHERE | VM_FLAGS_RETURN_DATA_ADDR,

@alexander-hanel
alexander-hanel / yolo.py
Last active January 17, 2020 03:40
old and new names in idc.py (in progress)
import re
import sys
import os
def load_apis():
new_old_apis = [
# start of changes for idc.py
("hasValue", "has_value"),
("byteValue", "byte_value"),
("isLoaded", "is_loaded"),
@Siguza
Siguza / dsc_syms.c
Last active February 20, 2022 02:19
dyld_shared_cache symbols to r2 flags
// Moved here: https://github.com/Siguza/misc/blob/master/dsc_syms.c
@bahorn
bahorn / sign.py
Last active November 22, 2025 17:11
Implementation of the Tuya API signing.
import requests
import hashlib
import time
import uuid
import os
import copy
import json
# This is based on my personal implementation but stripped down to only what is
# needed to verify it.
@mems
mems / icloudtabs2md.js
Last active February 26, 2023 21:38
Generate a markdown links list from iCloud tabs
#!/usr/bin/env node
/*
Generate a markdown links list from iCloud tabs, on macOS
Usage:
./icloudtabs2md.js > icloudtabs.md
./icloudtabs2md.js | pbcopy
Require: