This is inspired by https://fasterthanli.me/blog/2020/a-half-hour-to-learn-rust/
the command zig run my_code.zig will compile and immediately run your Zig
program. Each of these cells contains a zig program that you can try to run
(some of them contain compile-time errors that you can comment out to play
with)
| #define RSTRING_EMPTY_P(s) (RSTRING_LEN(s) == 0) | |
| static VALUE | |
| magic_strip(VALUE v) | |
| { | |
| return (ARRAY_P(v) || STRING_P(v)) ? \ | |
| rb_funcall(v, rb_intern("strip"), 0) : \ | |
| Qnil; | |
| } |
Obtaining a low-latency guests in KVM (i.e.: low DPC latency for Windows guests) can be difficult. Without it, you may hear cracks/pops in audio or freezes in the VM, so they can be very annoying, specially for gaming dedicated VMs.
This document summarizes some of my findings on this subject.
Here is easy steps to try Windows 10 on ARM or Ubuntu for ARM64 on your Apple Silicon Mac. Enjoy!
NOTE: that this is current, 10/1/2021 state.
| from pwn import * | |
| context.arch = "amd64" | |
| context.terminal = "tmux splitw -h -f".split() | |
| #cmd = "b* $_base()+0x1586" | |
| cmd = "" | |
| DEBUG = 0 | |
| p = process("./heap") | |
| #p = remote("yetanotherheap.hackable.software", 1337) | |
| if DEBUG: | |
| gdb.attach(p, cmd, gdb_args=['--init-eval-command="source ~/ctf/tools/gef/gef.py"']) |
Here is the best setup (I think so :D) for K-series Keychron keyboards on Linux.
Note: many newer Keychron keyboards use QMK as firmware and most tips here do not apply to them. Maybe the ones related to Bluetooth can be useful, but everything related to Apple's keyboard module (hid_apple) on Linux, won't work. As far as I know, all QMK-based boards use the hid_generic module instead. Examples of QMK-based boards are: Q, Q-Pro, V, K-Pro, etc.
Most of these commands have been tested on Ubuntu 20.04 and should also work on most Debian-based distributions. If a command happens not to work for you, take a look in the comment section.
Older Keychron keyboards (those not based on QMK) use the hid_apple driver on Linux, even in the Windows/Android mode, both in Bluetooth and Wired modes.
| package main | |
| import ( | |
| "context" | |
| "io/ioutil" | |
| "log" | |
| "net" | |
| "net/http" | |
| "time" | |
| ) |
| PACKAGE_NAME="nullfs" | |
| PACKAGE_VERSION="0.1.0" | |
| AUTOINSTALL="yes" | |
| REMAKE_INITRD="yes" | |
| BUILT_MODULE_LOCATION[0]="./" | |
| BUILT_MODULE_NAME[0]="nullfs" | |
| DEST_MODULE_LOCATION[0]="/kernel/fs" | |
| DEST_MODULE_NAME[0]="nullfs" | |
| CLEAN="make clean" | |
| MAKE="make BUILD_KERNEL=${kernelver}" |
| #!/bin/bash | |
| # The default BAR address space available on the CM4 may be too small to allow | |
| # some devices to initialize correctly. To avoid 'failed to assign memory' | |
| # errors on boot, you can increase the range of the PCIe bus in the Raspberry | |
| # Pi's Device Tree (a .dtb file specific to each Pi model). | |
| # | |
| # You should probably read up on Device Trees if you don't know what they are: | |
| # https://www.raspberrypi.org/documentation/configuration/device-tree.md | |
| # |
| """ Copy a file with callback (E.g. update a progress bar) """ | |
| # based on flutefreak7's answer at StackOverflow | |
| # https://stackoverflow.com/questions/29967487/get-progress-back-from-shutil-file-copy-thread/48450305#48450305 | |
| # License: MIT License | |
| import os | |
| import pathlib | |
| import shutil |
