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movq
www.uninformativ.de
 (1y ago)

OpenBSD has the wonderful pledge() and unveil() syscalls:

https://www.youtube.com/watch?v=bXO6nelFt-E

Not only are they super useful (the program itself can drop privileges – like, it can initialize itself, read some files, whatever, and then tell the kernel that it will never do anything like that again; if it does, e.g. by being exploited through a bug, it gets killed by the kernel), but they are also extremely easy to use.

Imagine a server program with a connected socket in file descriptor 0. Before reading any data from the client, the program can do this:

unveil("/var/www/whatever", "r");
unveil(NULL, NULL);
pledge("stdio rpath", NULL);

Done. It’s now limited to reading files from that directory, communicating with the existing socket, stuff like that. But it cannot ever read any other files or exec() into something else.

I can’t wait for the day when we have something like this on Linux. There have been some attempts, but it’s not that easy. And it’s certainly not mainstream, yet.

I need to have a closer look at Linux’s Landlock soon (“soon”), but this is considerably more complicated than pledge()/unveil():

https://landlock.io/

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thecanine
twtxt.net
 (1y ago)

Of Pointlessware and CEOs
Had a moment, to check up on some of the companies, I stopped following, get to The Browser Company and see their newest product - it’s just Chrome, with an AI chat window pop-up and that’s it. Something Canary Chrome, come with already.
I see Theo from T3.gg, making fun of it on YouTube and promoting “his” product - an AI chat app, where you can choose from multiple models, by all the popular AI companies. Something I already have a worse version of, at work and I don’t even use it.
There’s also an interview, about the future of virtual keyboards, surely this is at least actually a real thing and not more pointless horse shit. I check the website of the keyboard SDK, and it’s around 20 identical apps, that just copy the same keyboard SDK/api and slap chatgpt features on top - in the App Store, these are surrounded by chatgpt clones, that just feed the users prompts, into the real thing and put ads, next to the answers.

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jlelses-blog
feeds.twtxt.net
 (1y ago)

Dmytro Prudnikov, former product designer at Komoot, who was still featured last December in a post on LinkedIn, but got, as many others, fired, posted an emotional video on YouTube. Together, he and a lot of other former colleagues, they spent some time together for a last gathering. ⌘ Read more

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jlelses-blog
feeds.twtxt.net
 (1y ago)

My music listening is inconsistent. I don’t listen to much music, sometimes weeks without any music streaming at all. And when I do, I often listen to some automatic playlists with recommendations from YouTube. I don’t have any specific artists I always listen too. Furthermore, I don’t even have a specific genre I like the most, often it’s something electronic. ⌘ Read more

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