fanf2

Also NASA / Lockheed Martin https://www.nasa.gov/mission/quesst/

Yeah. The right way to eliminate fork() is to make the usual APIs that modify process state take an explicit process handle, so the same APIs can be used to set up an empty process. They can also be composed in other ways, eg for IPC or debugging.

If the VLA size is not controlled it gives an attacker a primitive for arbitrarily shifting the stack pointer. There isn’t any spec for what is a reasonable limit on a VLA size. https://dotat.at/@/2010-01-22-coroutines-in-less-than-20-lin...

https://www.kernel.org/doc/html/latest/kbuild/llvm.html

I don’t think there’s any branching in intitializer lists or declarations.

It would be nice if DDG could get rid of the umpteen shitty wikipedia mirrors that clutter up the results.

If the manpage is written with the 4.4BSD -mdoc semantic markup macros then it can contain hyperlinks like

  .Lk https://dotat.at/ "Tony Finch’s web site"

https://mandoc.bsd.lv/

The first thing I look at in new DNS code is whether it’s vulnerable to DNS name compression loops. This code passes the test! However it’s vulnerable to dots embedded in labels: it doesn’t escape bytes properly when converting from wire format to text.

Let’s Encrypt has been doing DNSSEC validation for years. DNSSEC could have prevented the jabber.ru MITM attack.

When CAMRA was new in the early 1970s, they started a campaign for oversize glasses holding a pint to the line instead of a pint to the rim, so that there would be space for a pint of liquid and a head in the glass. The big breweries hated this idea and mounted a reactionary campaign arguing things like it would be too expensive to replace all the glasses, or serve customers the full measure they had paid for. (My father was a new recruit at Guinness and sadly one of his early tasks was the pint-to-brim campaign.)

There are several ways to map the IPv4 address space into the IPv6 address space, going right back to the first IPv6 addressing architecture RFC. Every compatibility protocol added a new one.

IPv6 added IPSEC which was backported to IPv4.

IPv6 tried to add easy renumbering, which did’t work and had to be discarded.

IPv6 added scoped addresses which are halfbaked and limited. Site-scoped addresses never worked and were discarded; link-scoped addresses are mostly used for autoconfiguration.

IPv6 added new autoconfiguration protocols instead of reusing bootp/DHCP.

Inmos? Transputers were inspired by Hoare’s CSP.

Yeah. There’s also the issue that the earth’s rotation is slowing down, so over the long term leap seconds would become more and more frequent. There’s a point when the earth is slow enough that leap seconds need to happen nearly every month, and by that point they are no longer a workable solution to the problem. That is expected to take a few thousand years, comparable to the point where a leap hour would be needed if there were no leap seconds.

The vtable vs switch dichotomy was called the “expression problem” by Philip Wadler https://en.wikipedia.org/wiki/Expression_problem

Scientific publishers do not pay for peer review. Reviews are done by researchers as part of their jobs which are paid for by their research grants.

`info foo | less` is a better info reader than `info foo`

There is an English dictionary of fuck called The F Word

https://en.wikipedia.org/wiki/The_F-Word_(book)

The BSDs use nvi which is a clone of vi from about 1990.

You might encounter Bill Joy’s vi on a Solaris or illumos machine.

Kessler satellites

there's basically no reason you'd ever want an alkaline battery except cost

Rechargeable batteries are much cheaper than disposable single-use batteries.

Real hat riots in 1922 https://en.wikipedia.org/wiki/Straw_Hat_Riot

Functions are partial in most programming languages, so the fact that arrays are best modelled as partial functions (rather than total functions) isn’t a huge obstacle.

Most of the performance regressions are due to lots of dynamic reconfigurability at runtime, which isn’t needed for portability to ancient systems. (Although OpenSSL is written in C it has a severe case of dynamic language envy, so it’s ironic that the pyca team want a less dynamic crypto library.)

I use https://pagefind.app/ for search on my website. It’s really easy to add to a static site.

It isn’t on-die, the ram is separate chips in the same package. See the pics about halfway down https://www.apple.com/de/newsroom/2023/10/apple-unveils-m3-m...

There are actually four variants:

• loop counts downwards vs upwards

• the processed part of the array is a uniform sample of the whole array, or it is a segment that has been uniformly shuffled

Knuth described only the downwards sampling version, which is probably why it’s the most common.

The variants are compared quite well on wikipedia https://en.wikipedia.org/wiki/Fisher%E2%80%93Yates_shuffle

This doesn’t work for testing migrations because MySQL/MariaDB doesn’t support DDL inside transactions, unlike PostgreSQL.

Ian Jackson (the author of this article) also wrote debbugs.

It’s easy to find on https://openinframap.org

Byte ranges are the only way to access files over sftp. Look at the read and write requests in https://datatracker.ietf.org/doc/html/draft-ietf-secsh-filex...