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Alex Goodman wagoodman

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@phooky
phooky / no_masters.sh
Last active December 16, 2020 16:54
A quick bash script for changing the "master" branch of your github repo(s) to an alternative of your choosing.
#!/bin/bash
# There's a better way to do this! Use:
# https://github.com/dfm/rename-github-default-branch
# instead.
#
# Also: don't change the default branch name on your gists! Github appears to have them
# locked to master; it will break your gist.
set -e
@kovetskiy
kovetskiy / samizdat-shell-help.bash
Created July 7, 2020 19:01
#!/bin/bash
###
### my-script — does one thing well
###
### Usage:
### my-script <input> <output>
###
### Options:
### <input> Input file to read.
### <output> Output file to write. Use '-' for stdout.
@laanwj
laanwj / validate_macho_sig.py
Last active January 10, 2023 17:44
Validate cryptographic signature on macos macho binary
#!/usr/bin/env python3
import io
import struct
import sys
import pprint
import macholib.MachO
from macholib.mach_o import LC_CODE_SIGNATURE
import asn1crypto.x509
from asn1crypto.cms import ContentInfo, SignedData, CMSAttributes
@dougallj
dougallj / aarch64_amx.py
Last active October 29, 2025 14:12
# IDA (disassembler) and Hex-Rays (decompiler) plugin for Apple AMX
#
# WIP research. (This was edited to add more info after someone posted it to
# Hacker News. Click "Revisions" to see full changes.)
#
# Copyright (c) 2020 dougallj
# Based on Python port of VMX intrinsics plugin:
# Copyright (c) 2019 w4kfu - Synacktiv
@joydo
joydo / implement-an-elf-linker.md
Created December 24, 2021 01:16 — forked from MaskRay/implement-an-elf-linker.md
Implement an ELF linker
theme class highlighter fonts
default
text-center
MaskRay
sans serif mono
sans-serif
serif
monospace
@moyix
moyix / killbutmakeitlooklikeanaccident.sh
Created February 5, 2022 22:51
Script to inject an exit(0) syscall into a running process. NB: only x86_64 for now!
#!/bin/bash
gdb -p "$1" -batch -ex 'set {short}$rip = 0x050f' -ex 'set $rax=231' -ex 'set $rdi=0' -ex 'cont'
@aileftech
aileftech / hex-colors.txt
Created October 1, 2022 18:10
A Bash one-liner to produce a list of HEX color codes that read like (supposedly) valid English words
$ grep -P "^[ABCDEFabcdefOoIi]{6,6}$" /usr/share/dict/words | tr 'OoIi' '0011' | tr '[:lower:]' '[:upper:]' | awk '{print "#" $0}'
#ACAD1A
#B0BB1E
#DEBB1E
#AB1DED
#ACAC1A
#ACCEDE
#AC1D1C
#BAB1ED
#BA0BAB
@fsmv
fsmv / pass.go
Last active June 21, 2025 22:45
A runnable go script that creates an http basic auth password hash compatible with .htaccess (this is just the password part, you have to add username:<hash>)
/*?sr/bin/env go run "$0" "$@"; exit $? #*/
// This is actually not a shebang, the first line is both valid shell script and valid go code
// Just run: chmod +x pass.go; ./pass.go
package main
import (
"bufio"
"crypto/sha256"
"encoding/base64"
"fmt"
@kconner
kconner / macOS Internals.md
Last active October 31, 2025 14:00
macOS Internals

macOS Internals

Understand your Mac and iPhone more deeply by tracing the evolution of Mac OS X from prelease to Swift. John Siracusa delivers the details.

Starting Points

How to use this gist

You've got two main options:

@adtac
adtac / Dockerfile
Last active July 13, 2025 20:06
#!/usr/bin/env docker run
#!/usr/bin/env -S bash -c "docker run -p 8080:8080 -it --rm \$(docker build --progress plain -f \$0 . 2>&1 | tee /dev/stderr | grep -oP 'sha256:[0-9a-f]*')"
# syntax = docker/dockerfile:1.4.0
FROM node:20
WORKDIR /root
RUN npm install sqlite3