^{This repository is a fork of sw1tchbl4d3's rdo}

RootDo

This project aims to be a very slim alternative to both sudo and doas.

Usage

rdo [command]

Installation

If you are on Arch Linux, you can download the package via the AUR.

If you are using any other Linux distro, or want to build it yourself, you will first need to install either libbsd or libbsd-dev, depending on how your package manager calls it.

Then, as the root user, build rdo with the following command:

make && make install

After that, you'll have to configure rdo to allow you to use it. To do this, edit /etc/rdo.conf and you're good to go!

The configuration file has the following variables:

username=<username>
wrong_pw_sleep=<milliseconds>
session_ttl=<minutes>

• username: The username of the user that is allowed to execute rdo (no multi user or group support (yet)).
• wrong_pw_sleep: The amount of milliseconds to sleep at a wrong password attempt. Must be a positive integer. Set to 0 to disable.
• session_ttl: The amount of minutes a session lasts. Must be a positive integer. Set to 0 to disable.

To uninstall:

make uninstall

Benchmarks

The benchmark: Execute whoami (GNU coreutils 8.32) 1000 times.

Program	Time
sudo 1.9.7p1	13.62s
opendoas 6.8.1	7.60s
rdo 1.2	2.25s
root user1	1.43s

These benchmarks were done on a single core of an Intel i3-3110M Laptop processor, on Artix Linux version 5.13.4-zen2-1-zen.

sudo and opendoas were pulled from the pacman repos, rdo via AUR.

All configs were kept as default, except allow the wheel group on both + enable persist on doas.

Script used:

#!/bin/sh

$1 whoami

current=$(date +%s.%N)
for i in {1..1000}; do
	$1 whoami 2>&1 >/dev/null
done
done=$(date +%s.%N)

echo $done - $current | bc

The script requires bc to be installed, for floating point arithmetics.

Footnotes

1. Executing the command just as root without any utility to execute the command as root. ↩