suy

joined 1 year ago
[–] [email protected] 1 points 4 months ago

I'd have to dig it, but I think it said that it added the PID and the uninitialized memory to add a bit more data to the entropy pool in a cheap way. I honestly don't get how that additional data can be helpful. To me it's the very opposite. The PID and the undefined memory are not as good quality as good randomness. So, even without Debian's intervention, it was a bad idea. The undefined memory triggered valgrind, and after Debian's patch, if it weren't because of the PID, all keys would have been reduced to 0 randomness, which would have probably raised the alarm much sooner.

[–] [email protected] 11 points 4 months ago (2 children)

no more patching fuzzers to allow that one program to compile. Fix the program

Agreed.

Remember Debian's OpenSSL fiasco? The one that affected all the other derivatives as well, including Ubuntu.

It all started because OpenSSL did add to the entropy pool a bunch uninitialized memory and the PID. Who the hell relies on uninitialized memory ever? The Debian maintainer wanted to fix Valgrind errors, and submitted a patch. It wasn't properly reviewed, nor accepted in OpenSSL. The maintainer added it to the Debian package patch, and then everything after that is history.

Everyone blamed Debian "because it only happened there", and definitely mistakes were done on that side, but I surely blame much more the OpenSSL developers.

[–] [email protected] 39 points 4 months ago

Is it, really? If the whole point of the library is dealing with binary files, how are you even going to have automated tests of the library?

The scary thing is that there is people still using autotools, or any other hyper-complicated build system in which this is easy to hide because who the hell cares about learning about Makefiles, autoconf, automake, M4 and shell scripting at once to compile a few C files. I think hiding this in any other build system would have been definitely harder. Check this mess:

  dnl Define somedir_c_make.
  [$1]_c_make=`printf '%s\n' "$[$1]_c" | sed -e "$gl_sed_escape_for_make_1" -e "$gl_sed_escape_for_make_2" | tr -d "$gl_tr_cr"`
  dnl Use the substituted somedir variable, when possible, so that the user
  dnl may adjust somedir a posteriori when there are no special characters.
  if test "$[$1]_c_make" = '\"'"${gl_final_[$1]}"'\"'; then
    [$1]_c_make='\"$([$1])\"'
  fi
  if test "x$gl_am_configmake" != "x"; then
    gl_[$1]_config='sed \"r\n\" $gl_am_configmake | eval $gl_path_map | $gl_[$1]_prefix -d 2>/dev/null'
  else
    gl_[$1]_config=''
  fi
[–] [email protected] 3 points 5 months ago (1 children)

this has to do with writing ‘better’ code, which has proved impossible over and over again

I can't speak for C, as I don't follow it that much, but for C++, this is just not fair. It has been proven repeatedly that it can be done better, and much better. Each iteration has made so many things simpler, more productive, and also safer. Now, there are two problems with what I just said:

  • That it has been done safer, that doesn't mean that everyone makes good use of it.
  • That it has been done safer, doesn't mean that everything is fixable, and that it's on the same level of other, newer languages.

If that last part is what you mean, fine. But the way that you phrased (and that I quoted) is just not right.

At this point it’s literally easier to slowly port to a better language than it is to try and ‘fix’ C/C++.

Surely not for everything. Of course I see great value if I can stop depending on OpenSSL, and move to a better library written in a better language. Seriously looking forward for the day when I see dynamic libraries written in Rust in my package manager. But I'd like to see what's the plan for moving a large stack of C and C++ code, like a Linux distribution, to some "better language". I work everyday on such a stack (e.g. KDE Neon in my case, but applicable to any other typical distro with KDE or GNOME), and deploy to customers on such a stack (on Linux embedded like Yocto). Will the D-Bus daemon be written in Rust? Perhaps. Systemd? Maybe. NetworkManager, Udisks, etc.? Who knows. All the plethora of C and C++ applications that we use everyday? Doubtful.

[–] [email protected] 17 points 5 months ago (1 children)

I'm not fully sure what the intent of the joke is, but note that yes, it's true that a header typically just has the prototype. However, tons of more advanced libraries are "header-only". Everything is in a single header originally, in development, or it's a collection of headers (that optionally gets "amalgamated" as a single header). This is sometimes done intentionally to simplify integration of the library ("just copy this files to your repo, or add it as a submodule"), but sometimes it's entirely necessary because the code is just template code that needs to be in a header.

C++ 20 adds modules, and the situation is a bit more involved, but I'm not confident enough of elaborating on this. :) Compile times are much better, but it's something that the build system and the compilers needs to support.

[–] [email protected] 10 points 5 months ago

Precisely, Gary Bernhardt has given a talk on ideology. I don't think he's precisely someone who thinks in absolutes. It's just preaching that some stuff is (probably) used more than it should. I've seen way, way, way worse projects that over engineered things and made things slow and unmanageable, than the opposite. Of course, everyone has seen different things, and our perceptions are amplified and biased by that.

[–] [email protected] 2 points 5 months ago

I've wanted to start a project in Rust, but for the ideas that I have (and the time that I have for a hobby project, as for work it's rarely starting a new one, but continuing and existing one), Rust seemed a viable, but not ideal alternative to just doing it all in C++, for which I already have enough knowledge and very well proven libraries. I will look again soon, and I will keep looking because eventually something will surely click, it's just that so far, the time has not been right.

Note that my point is not that it's unusable for everyone. Just that it's false that "some people just can't seem to let [C or C++] go", as the previous comment said. I can't let go something that works well for something that doesn't, given the projects that I have to work on.

[–] [email protected] 3 points 5 months ago (4 children)

It’s just time to move on from C/C++, but some people just can’t seem to let go.

The Rust community has 2 websites that I keep periodically checking: Are we game yet? and Are we GUI yet?. The answers on those sites are respectively (as of February 2024, when this comment is written) "Almost. We have the blocks, bring your own glue" and "The roots aren't deep but the seeds are planted". I've seen the progress in Bevy and Slint, but it's still the same, those websites don't change, and my situation WRT to making a Rust project for fun or work it's the same.

I'll be happy to start doing Rust projects whenever I get the chance (which will be when it's a sufficient tool for my use cases). But I'm tired of smoke sellers.

[–] [email protected] 6 points 6 months ago

The github project page is for developers, and Github already gives you tons of ways to make a user website. Don't ask your users to visit github.com/group/project, make them visit group.github.io/project, like any sane person.

Same with Gitlab, BTW.

And if you don't like the full static site, use the wiki, or guide your users in the first paragraphs of the README so they find the user information if they must.

[–] [email protected] 7 points 6 months ago (1 children)
[–] [email protected] 6 points 6 months ago

The very first moment that I had to use JSON as a configuration format, and I was desperate to find a way to make a long string into a JSON field. JSON is great for many things, but it's not good at all for a configuration format where you need users to make it pretty, and need features like comments or multi-line strings (because you don't want to fix a merge conflict in a 400 character-wide line).

[–] [email protected] 6 points 6 months ago

Doesn't YAML have a (seldom used) feature of a start and end of document marker? The "YAML frontmatter" that a few markdown documents have, uses this.

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