I’m really bad at competitive programming. 🙄 For today’s #AdventOfCode puzzle, I spent an eternity trying to understand exactly what kind of bG9naWMgY2lyY3VpdAo= the puzzle input describes – I haven’t done that in well over a decade, so I made little progress. I knew right from the start that SSBoYWQgdG8gbG9vayBmb3IgY3ljbGUgbGVuZ3RocyBhbmQgdGhlbiBmaW5kIHRoZSBMQ00K. It just didn’t occur to me to just run my program on cGFydGlhbCBpbnB1dAo= and print those numbers. 🥴 I only did that after over 4 hours (including time to debug my nasty C code) and then, boom, solution …

Today’s Advent of Code puzzle was rather easy (luckily), so I spent the day doing two other things:

• Explore VGA a bit: How to draw pixels on DOS all by yourself without a library in graphics mode 12h?
  
• Explose XMS a bit: How can I use more than 640 kB / 1 MB on DOS?
  

Both are … quite awkward. 😬 For VGA, I’ll stick to using the Borland Graphics Interface for now. Mode 13h is great, all pixels are directly addressable – but it’s only 320x200. Mode 12h (640 x 480 with 16 colors) is pretty horrible to use with all the planes and what not.

As per this spec, I’ve written a small XMS example that uses 32 MB of memory:

https://movq.de/v/9ed329b401/xms.c

It works, but it appears the only way to make use of this memory is to copy data back and forth between conventional memory and extended memory. I don’t know how useful that is going to be. 🤔 But at least I know how it works now.

Je viens de découvrir que dans #nethack, c’est une mauvaise idée d’enchanter une armure déjà à +3. Me voilà à poil dans le donjon, je n’ai plus de robe XD

À propos du remplacement de la pâte thermique, il semble que ce soit encore + efficace le lendemain, comme si elle avait besoin de “sécher”. Là, je suis à 40°C en moyenne

Je viens de changer la pâte thermique sur le CPU de mon x250. obsdfreqd ne devient plus aussi indispensable : au lieu de tourner autour de 75°C, j’en suis à 55°C. Petit rappel du dimanche soir : pensez à mettre votre bios à jour, à nettoyer le ventilateur et à changer la pâte thermique. #openbsd

merci archive.org de proposer des #torrent pour les sets neogeo, c’est tellement + rapide et fiable. Merci pour ce travail de mémoire.

obsdfreqd is saving my computer from burning at 70°C #openbsd

@eapl.me@eapl.me I have many fond memories of Turbo pascal and Turbo C(++). They really did have a great help system. And debug tools! Its rare for language docs to be as approachable. QBasic was great. As was PHP docs when I first came into web.

It is a pleasure to work with the help system of Borland’s Turbo C++ 3.0 on DOS. The descriptions are clear and concise. There are short and simple examples. Pretty much every help page is cross-refenced and those links can be clicked.

genially… Pourquoi faut-il payer pour avoir le contenu hors ligne. Que c’est nul, c’est autant de ressources qui ne serviront jamais pour l’éducation. Quelqu’un saurait comment exporter un genially. Par exemple celui-ci : https://college.hachette-education.com/ressources/0002017238904/st6_2023_exploration_06/

Something weird is happening to the new APC UPS - it has an USB Type-C port - but it seems that the power supply is a bit wonky.

Commentaire du code pour un service de lecture over ssh (et je me la pète au passage avec plein de liens #C ) : https://si3t.ch/log/2023-11-13-txtoverssh.c.txt gopher://si3t.ch/0/log/2023-11-13-txtoverssh.c.txt gemini://si3t.ch/log/2023-11-13-txtoverssh.c.txt http://6gvb6fzoxv72mtlpvr2fgj7ytpeggwuerdawspt24njlkwfxir6jncid.onion/log/2023-11-13-txtoverssh.c.txt gopher://of2w2p5f4hsslk63hmo6tid6r7inhlxuxviq4pb5cxg45enswpbrfjad.onion/0/log/2023-11-13-txtoverssh.c.txt gemini://b2khgkvb2wn4avjshjp63kknsjwikgwff5dwwydldia6qwf4kdnueyad.onion/log/2023-11-13-txtoverssh.c.txt ou encore ‘ssh lire@si3t.ch’ numéro 45.

Je me suis remis au C, je m’amuse bien. Juste pour m’amuser, j’écris un truc dont le nom est ‘sshole’ 👼

So Youtube rea really cracking down on Ad-blockers. The new popup is a warning saying you can watch 3 videos before you can watch no more. Not sure for how long. I guess my options are a) wait for the ad-blockers to catch-up b) pay for Youtube c) Stop using Youtube.

I think I’m going with c) Stop using Youtube.

5°C le matin, 27°C l’après-midi. Ce ΔT m’épuise! 😫 #climatechange

Elle: Chéri, j’ai un problème, je ne sais plus où j’ai mis un fichier ni comment il s’appelle. Par contre, je sais que dedans j’ai écrit ‘cahier du soir’. Comment je peux faire? Moi > T’inquiète poulette, un petit script find+odt2txt+grep et c’est la fête. Elle > Ooooh merci tu es si fort et si beau ! (non)

Factorial Numbers
⌘ Read more

Je suis à la recherche d’un script (#javascript) qui change la couleur du texte selon la nature grammaticale des mots. C’est censé faciliter la lecture. Ça vous dit quelque chose?

Trop content: j’ai réussi à changer la lampe du clignotant arrière de ma voiture tout seul. Fallait démonter le phare. C’est tout bête, mais j’en suis fier :). (je déteste les voitures, ça coûte cher et c’est tout le temps en panne/vidange/CT

Experts warn ‘green growth’ in high income countries is not happening, call for ‘post-growth’ climate policies
The emission reductions in the 11 high-income countries that have “decoupled” CO2 emissions from Gross Domestic Product (GDP) fall far short of the reductions that are necessary to limit global warming to 1.5°C or even just to “well below 2°C” and comply with international fairness principles, as required by the Paris Agreement, according to a paper published in The Lancet Planetary Health j … ⌘ Read more

In case you haven’t heard yet …

https://groups.google.com/g/vim_announce/c/tWahca9zkt4

Bram Moolenaar has died. 😢

there is E-L-E-C-T-R-I-C-I-T-Y in the sky.

@movq@www.uninformativ.de
Doesn’t even compile on my system, which is apparently broken:

> cc -Wall -Wextra -o win win.c $(pkg-config --cflags --libs gtk4)                                                                                                        
cc: error: unrecognized argument in option ‘-mfpmath=sse -msse -msse2 -pthread -I/usr/include/gtk-4.0 -I/usr/include/gio-unix-2.0 -I/usr/include/cairo -I/usr/include/pango-1.0 -I/usr/include/harfbuzz -I/usr/include/pango-1.0 -I/usr/include/fribidi -I/usr/include/harfbuzz -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/x86_64-linux-gnu -I/usr/include/cairo -I/usr/include/pixman-1 -I/usr/include/uuid -I/usr/include/freetype2 -I/usr/include/libpng16 -I/usr/include/graphene-1.0 -I/usr/lib/x86_64-linux-gnu/graphene-1.0/include -I/usr/include/libmount -I/usr/include/blkid -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -lgtk-4 -lpangocairo-1.0 -lpango-1.0 -lharfbuzz -lgdk_pixbuf-2.0 -lcairo-gobject -lcairo -lgraphene-1.0 -lgio-2.0 -lgobject-2.0 -lglib-2.0’
cc: note: valid arguments to ‘-mfpmath=’ are: 387 387+sse 387,sse both sse sse+387 sse,387

A GTK 4 application showing an empty window uses about 160 MB of RAM:

$ wget https://movq.de/v/138ab3e622/win.c
$ cc -Wall -Wextra -o win win.c $(pkg-config --cflags --libs gtk4)
$ ./win

It also takes several seconds to start on my machine because it is compiling shaders and initializing DRI (it’s faster on the second run, unless you happen to lose ~/.cache/mesa_shader_cache/). This might be a hint as to why it’s using so much memory: There’s obviously much more going on behind the scenes these days, not just a little bit of internal housekeeping and then creating a window.

Enjoying a day off, sitting on the balcony in some nice 18°C. 👌

Random photos: https://movq.de/v/863829c893

Here’s a massive image (5928x24180, 12 MB JPG) showing many of the planes that flew by: https://movq.de/v/34a6d39baa/montage.jpg

I have used Linux for most my life, and it hat been my daily driver for nearly two decades now. I have been bugged recently how when I exit the terminal buffer has not been cleared leaving whatever contents available to the next user to view.

a quick man zsh I found the STARTUP/SHUTDOWN FILES, and then a quick search on resetting the termianl buffer led me to <esc>c or printf "\033c".

In five minutes something which has bothered me for who knows how long was resolved. Just needed some motivation to figure it out.

According to the RedMonk programming language rankings from Jan 2023, Go and Scala are tied at 14th place 😏

1 JavaScript
2 Python
3 Java
4 PHP
5 C#
6 CSS
7 TypeScript
7 C++
9 Ruby
10 C
11 Swift
12 Shell
12 R
14 Go
14 Scala
16 Objective-C
17 Kotlin
18 PowerShell
19 Rust
19 Dart

The weather all of a sudden went from chilly and wet to warm and pleasant. It’s before 8am and it’s already 15°C and sunny.

On the topic of Programming Languages and Telemetry. I’m kind of curious… Do any of these programming language and their toolchains collect telemetry on their usage and effectively “spy” on your development?

• Python
  
• C
  
• C++
  
• Java
  
• C#
  
• Visual Basic
  
• Javascript
  
• SQL
  
• Assembly Language
  
• PHP

@abucci@anthony.buc.ci So.. The issue is that its showing the password by default? Would making an alias to always include the -c help? We can probably engage Jason with a PR to enable a more hardened approach when desired. I’ve spoken to him before and is generally a pretty open to ideas.

I found this app that was created by the gopass author that does copy by default and has a tui or GUI mode https://github.com/cortex/ripasso

@abucci@anthony.buc.ci did you know about the chip inside USB-C cables?

https://connectorsupplier.com/usb-type-c-what-you-need-to-know/

some groups have created their own chips that have hidden keyloggers that can phone home over network connections.

https://shop.hak5.org/products/omg-cable

I made a thing. Its a multi password type checker. Using the PHC string format we can identify a password hashing format from the prefix $name$ and then dispatch the hashing or checking to its specific format.

I have found the issue with this very subtle bug.. the cache was returning a slice that would be mutated. The mutation involved appending an item and then sorting. because the returned slice is just a pointer+length the sort would modify the same memory.

          CACHE         Returned slice          
original: [A B C D]     [A B C D]
add:      [A B C D] E   [A B C D E]
sort:     [E A B C] D   [A B C D E]

fix found here:
https://git.mills.io/yarnsocial/yarn/pulls/1072

Hoy estuve diseñando una versión solitaria de Saint Poker ♠️♥️♣️♦️.

No funciona tan mal, se siente divertida y te hace pensar de una manera diferente al Hold’em. Posiblemente sea la versión sobre la que hare un tutorial de C# y Unity. La versión Ultimate Poker para casino no la siento tan entretenida.

Me gustaría probar la versión multijugador. Siento que será completamente diferente.

@prologic@twtxt.net It’s called “cgod” and it isn’t written in C or Go? I want my money back…

I also like Gopher more than Gemini. The problem Gemini is trying to solve is better solved by just writing static HTML 4.01 pages.

I was just reminded of this interpreter for an APL/J-like language by Arthur Whitney, the absolute weirdest bit of C code I’ve actually gotten something out of, and thought I’d share: https://code.jsoftware.com/wiki/Essays/Incunabulum

¿Vives en Canadá 🇨🇦? Suena demasiado frio para mí 🥶 Mi hermano quería ir allá a trabajar, y tengo algunos amigos, pero con mi frío de 8° C ya me estoy congelando aquí al norte de México!

¡Me da mucha curiosidad como pueden soportar los autos tanto frío! Me toco manejar en la nieve en Minnesota, aunque quizás no es tanto como lo que soporta el tuyo…

Estoy practicando Ruby con el libro Head First (muy recomendado), y me doy cuenta que es bastante diferente a otros lenguajes que conozco y me gustan como Python, JS, C#. Le estoy apostando sobre Go, PHP y otros. Espero sea buena decisión

(cont.)

Just to give some context on some of the components around the code structure.. I wrote this up around an earlier version of aggregate code. This generic bit simplifies things by removing the need of the Crud functions for each aggregate.

A domain object can be used as an aggregate by adding the event.AggregateRoot struct and finish implementing event.Aggregate. The AggregateRoot implements logic for adding events after they are either Raised by a command or Appended by the eventstore Load or service ApplyFn methods. It also tracks the uncommitted events that are saved using the eventstore Save method.

type User struct {
  Identity string ```json:"identity"`

  CreatedAt time.Time

  event.AggregateRoot
}

// StreamID for the aggregate when stored or loaded from ES.
func (a *User) StreamID() string {
	return "user-" + a.Identity
}
// ApplyEvent to the aggregate state.
func (a *User) ApplyEvent(lis ...event.Event) {
	for _, e := range lis {
		switch e := e.(type) {
		case *UserCreated:
			a.Identity = e.Identity
			a.CreatedAt = e.EventMeta().CreatedDate
        /* ... */
		}
	}
}

Events are applied to the aggregate. They are defined by adding the event.Meta and implementing the getter/setters for event.Event

type UserCreated struct {
	eventMeta event.Meta

	Identity string
}

func (c *UserCreated) EventMeta() (m event.Meta) {
	if c != nil {
		m = c.eventMeta
	}
	return m
}
func (c *UserCreated) SetEventMeta(m event.Meta) {
	if c != nil {
		c.eventMeta = m
	}
}

With a domain object that implements the event.Aggregate the event store client can load events and apply them using the Load(ctx, agg) method.

// GetUser populates an user from event store.
func (rw *User) GetUser(ctx context.Context, userID string) (*domain.User, error) {
	user := &domain.User{Identity: userID}

	err := rw.es.Load(ctx, user)
	if err != nil {
		if err != nil {
			if errors.Is(err, eventstore.ErrStreamNotFound) {
				return user, ErrNotFound
			}
			return user, err
		}
		return nil, err
	}
	return user, err
}

An OnX command will validate the state of the domain object can have the command performed on it. If it can be applied it raises the event using event.Raise() Otherwise it returns an error.

// OnCreate raises an UserCreated event to create the user.
// Note: The handler will check that the user does not already exsist.
func (a *User) OnCreate(identity string) error {
    event.Raise(a, &UserCreated{Identity: identity})
    return nil
}

// OnScored will attempt to score a task.
// If the task is not in a Created state it will fail.
func (a *Task) OnScored(taskID string, score int64, attributes Attributes) error {
	if a.State != TaskStateCreated {
		return fmt.Errorf("task expected created, got %s", a.State)
	}
	event.Raise(a, &TaskScored{TaskID: taskID, Attributes: attributes, Score: score})
	return nil
}

The following functions in the aggregate service can be used to perform creation and updating of aggregates. The Update function will ensure the aggregate exists, where the Create is intended for non-existent aggregates. These can probably be combined into one function.

// Create is used when the stream does not yet exist.
func (rw *User) Create(
  ctx context.Context,
  identity string,
  fn func(*domain.User) error,
) (*domain.User, error) {
	session, err := rw.GetUser(ctx, identity)
	if err != nil && !errors.Is(err, ErrNotFound) {
		return nil, err
	}

	if err = fn(session); err != nil {
		return nil, err
	}

	_, err = rw.es.Save(ctx, session)

	return session, err
}

// Update is used when the stream already exists.
func (rw *User) Update(
  ctx context.Context,
  identity string,
  fn func(*domain.User) error,
) (*domain.User, error) {
	session, err := rw.GetUser(ctx, identity)
	if err != nil {
		return nil, err
	}

	if err = fn(session); err != nil {
		return nil, err
	}

	_, err = rw.es.Save(ctx, session)
	return session, err
}

lolol actually, I’m now building a quick’n’dirty repl in C to test some mechanics, ended up implementing a small VM, adding sound asap, let’s see where that leads me #crow #raven #lang #coding #sound #livecoding #nyx

will have to implement some curl scanning for follows and mentions. gona be a nice chance to brush up my C-string-fu LoL

JavaScript : web apps

wut?! 😳 seriously?! 🤦‍♂️

Python : small tools

Okay 👌

Go: micro services

Umm bad generalization 🤣 – Example yarnd that powers most of Yarn.social 😂

Java: enterprise software

Yes! Oh gawd yes! 🤣 And Java™ needs to die a swift death!

C: crimes

Hmmm? 🤔 I feel this one is going to have some backslash and/or go the way of “Hacker” being misconstrued to mean entirely different/incorrect things as is what’s happening in the media (for various definitions of “media”).

Use C do crime! https://cdn.masto.host/pdxsocial/media_attachments/files/107/294/565/215/390/680/original/1d29c85c0aa4c9a5.png

a simple Makefile for forwarding internet to your local machine:

SSH_HOST=https://xuu.me
PRIV_KEY=~/.ssh/id_ed25519
forward:
	LOCAL_PORT=$(HOST_PORT); sh -c "$(shell http --form POST $(SSH_HOST) pub=@$(PRIV_KEY).pub | grep ^ssh | head -1 | awk '{ print "ssh -T -p " $$4 " " $$5 " -R " $$7 " -i $(PRIV_KEY)"  }')"

i think i know what to do. it’ll make more sense after you play my c̶o̶n̶d̶i̶t̶i̶o̶n̶i̶n̶g̶ ̶p̶r̶o̶g̶r̶a̶m̶ video game

“ç”, I think. Anything above 7-bit ASCII would’ve done it, though.

Look for overcast in Düsseldorf with a temperature of 22.7°C. No rain is expected at this time. Expect a gentle breeze from the WestSouthWest.

@prologic@twtxt.net @jlj@twt.nfld.uk @movq@www.uninformativ.de

 /p/tmp > git clone https://www.uninformativ.de/git/lariza.git                                                                                                    Mon May 24 23:48:18 2021
Cloning into 'lariza'...
 /p/tmp > tree lariza/                                                                                                                                    12.5s  Mon May 24 23:48:32 2021
lariza/
├── BUGS
├── CHANGES
├── LICENSE
├── Makefile
├── PATCHES
├── README
├── browser.c
├── man1
│   ├── lariza.1
│   └── lariza.usage.1
├── user-scripts
│   └── hints.js
└── we_adblock.c

2 directories, 11 files

you all understand the {c}{o}{n}{s}{e}{q}{u}{e}{n}{c}{e} of being ˡᵒᵘᵈ

Tutorial - Write a Shell in C • Stephen Brennan

cc @adi@twtxt.net