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Alessandro Ghedini ghedo

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ghedo / sound_playback.c
Last active May 26, 2024 13:44
Simple sound playback using ALSA API and libasound
/*
* Simple sound playback using ALSA API and libasound.
*
* Compile:
* $ cc -o play sound_playback.c -lasound
*
* Usage:
* $ ./play <sample_rate> <channels> <seconds> < <file>
*
* Examples:
@ghedo
ghedo / Makefile
Last active January 13, 2022 13:22
Kernel module to disable the ptrace() system call (http://blog.ghedini.me/post/10240771002/kernel-module-to-disable-ptrace)
# Copyright (C) 2011 Alessandro Ghedini <alessandro@ghedini.me>
# Updated 2012 by Mike Perry to extract syscall table addresses
# Updated 2014 by Francis Brosnan Blázquez to check for ia32 support
obj-m += noptrace2.o
KERNEL_VER=$(shell uname -r)
SCT := $(shell grep " sys_call_table" /boot/System.map-$(KERNEL_VER) | awk '{ print $$1; }')
SCT32 := $(shell grep "ia32_sys_call_table" /boot/System.map-$(KERNEL_VER) | awk '{ print $$1; }')
@ghedo
ghedo / 60fps.py
Last active November 15, 2021 19:31
VapourSynth script to convert videos to 60fps (with mpv)
# Usage: mpv --vf=vapoursynth=60fps.py --hwdec=no <file>
import vapoursynth as vs
core = vs.get_core()
src_fps = 24
dst_fps = 60
clip = core.std.AssumeFPS(video_in, fpsnum=src_fps)
super = core.mv.Super(clip, pel=2)
@ghedo
ghedo / gist_backup.pl
Last active September 1, 2021 18:25
Clone all the gists of a GitHub user
#!/usr/bin/perl
# Usage: gist_backup.pl <user>
# Clone all the gists of a GitHub user
use strict;
use warnings;
use Git::Raw;
use Pithub::Gists;
@ghedo
ghedo / movie_time.c
Last active July 2, 2021 12:56
Utility to hide the mouse cursor and prevent screen blanking (http://blog.ghedini.me/post/2050358022/screensaver-inhibitor)
/*
* Utility to hide the mouse cursor and prevent screen blanking.
*
* Compile:
* $ cc -o movietime movie_time.c -lX11
*
* Usage:
* $ ./movietime
*
* Copyright (C) 2010 Alessandro Ghedini <alessandro@ghedini.me>
/*
* WAVE file info reader.
*
* Compile:
* $ cc -o wav_info wav_info.c
*
* Usage:
* $ ./wav_info <file>
*
* Examples:
@ghedo
ghedo / mouse_wrap.c
Last active July 2, 2021 11:58
Wrap mouse pointer at screen edges
/*
* Wrap mouse pointer at screen edges.
*
* Compile:
* $ cc -o mousewrap mouse_wrap.c -lX11 -lXi
*
* Usage:
* $ ./mwrap
*
* Copyright (C) 2012 Alessandro Ghedini <alessandro@ghedini.me>
package main
import "fmt"
import "net"
import "sync"
import "strings"
import "github.com/miekg/dns"
func handleRequest(w dns.ResponseWriter, r *dns.Msg) {
@ghedo
ghedo / sleepd.c
Last active July 5, 2020 10:21
Execute a command after some time of inactivity
/*
* Execute a command after some time of inactivity
*
* Compile:
* $ cc -o sleepd sleepd.c
*
* Usage:
* $ ./sleepd -t 600 -c "slock"
*
* NOTE: to run this as a normal (non-root) user you may need to change
@ghedo
ghedo / ATSHA204.cpp
Last active November 26, 2019 12:35
Arduino library for the ATSHA204 authentication chip
/*
* Arduino library for the ATSHA204 authentication chip.
*
* The ATSHA204 is a tiny and low-power authentication chip. This library
* implements a simple interface to access most of the chip functionality from
* an Arduino.
*
* Note that only the Single-Wire Interface (SWI) is currently supported.
*
* FEATURES: