212 results for "":
Happy stay with us day
I didn’t really know what to do for “World Suicide Prevention Day 2014”.
First off, I didn’t know it existed at all. Like, c’mon, know your audience, if you have a party like that, I want in!
Second, it’s a terrible name: I hereby propose “stay with us day” in place. Nevermind the “world” part because, hey, we’re on the internet, the “suicide” part because, well, avoiding that is just the very start of a long uphill battle, and let’s keep the “day” part because, honest, if we can attract people’s attention for even a single day per year, it’ll be nothing short of a miracle.
Running an executable without exec
In part 1, we’ve looked at three executables:
sample, an assembly program that prints “hi there” using thewritesystem call.entry_point, a C program that prints the address ofmainusingprintf- The
/bin/trueexecutable, probably also a C program (because it’s part of GNU coreutils), and which just exits with code 0.
We noticed that when running entry_point through GDB, it always printed the
same address. But when we ran it directly, it printed a different address on
every run.
The iterative nature of art
Getting in and out of trouble with Rust futures
I started experimenting with asynchronous Rust code back when futures 0.1
was all we had - before async/await. I was a Rust baby then (I’m at least
a toddler now), so I quickly drowned in a sea of .and_then, .map_err
and Either<A, B>.
But that’s all in the past! I guess!
Now everything is fine, and things go smoothly. For the most part. But even
with async/await, there are still some cases where the compiler diagnostics are,
just, so much.
What's in a Rainbow table?
In Veronica Mars and password hashes, from my new Tech As Seen On TV series, we’ve explored “cracking passwords” using brute-force methods, and then using rainbow tables, which was much, much faster.
But how do rainbow tables actually work? Let’s start at the beginning.
What’s a password hash?
A very simple design for an authentication system is to store passwords in
clear text, say, in a file named password.txt:
Building a Rust service with Nix
The bottom emoji breaks rust-analyzer
Some bugs are merely fun. Others are simply delicious!
Today’s pick is the latter.
Reproducing the issue, part 1
(It may be tempting to skip that section, but reproducing an issue is an important part of figuring it out, so.)
I’ve never used Emacs before, so let’s install it. I do most of my computing on an era-appropriate Ubuntu, today it’s Ubuntu 22.10, so I just need to:
On the subject of time
Extra credit
We’ve achieved our goals already with this series: we have a web service written in Rust, built into a Docker image with nix, with a nice dev shell, that we can deploy to fly.io.
But there’s always room for improvement, and so I wanted to talk about a few things we didn’t bother doing in the previous chapters.
Making clash-geoip available in the dev shell
oocdoc, Part 1 — NaturalDocs
Documentation in ooc land has sucked for quite some time. The standard response is pretty much: “use the code, Luke!” — which is fine when doing small projects that don’t matter much, but not so when you want to get serious.
So when a newcomer, beoran, asked how to generate documentation, and later told us he got NaturalDocs to work, naturally, I had to see for myself how well it worked.