|6 days ago||9 days ago|
|GNU General Public License v3.0 or later||GNU General Public License v3.0 or later|
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
ZLib VS jdeflate - a user suggested alternative
2 projects | 25 Nov 2023
CVE-2023-4863: Heap buffer overflow in WebP (Chrome)
18 projects | news.ycombinator.com | 12 Sep 2023
So the real issue here is that the lack of tree validation before the tree construction, I believe. I'm surprised that this check was not yet implemented (I actually checked libwebp to make sure that I was missing one). Given this blind spot, an automated test based on the domain knowledge is likely useless to catch this bug.
Notes: Advanced Node.js Concepts by Stephen Grider
5 projects | dev.to | 19 Aug 2023
Exploring the Internals of Linux v0.01
8 projects | news.ycombinator.com | 12 Aug 2023
Quite OK Image is now my favorite asset format
9 projects | news.ycombinator.com | 18 Dec 2022
A minimal viable Deflate decompressor is not exactly complex, although slower than mainline zlib.
2 projects | /r/Piracy | 5 Nov 2022
ZLibrary not zlib for anyone worried about archiving algorithms. https://zlib.net/ and all the Linux repositories are safe (AFAIK).
Save File Corruption fix? PLEASE HELP
2 projects | /r/SatisfactoryGame | 30 Oct 2022
>The following is my educated guess at what to do next and I am a week-end warrior programmer at best. If someone with more experience comments, I would listen to them over me< If you have no programming experience, this may be a lost cause. It looks like the save file has a header area followed by a list of "zlib" compressed chunks. zlib.net may have a program that can open the save file and let you see the raw information inside it. Something after the header is garbled and it is preventing Save-Editors from decompressing that chunk OR from parsing what is inside of it. If you are lucky, the garbled bit will jump out at you and you can repair it.
Zlib Critical Vulnerability
4 projects | news.ycombinator.com | 14 Oct 2022
These appears to be the relevant changes:
The second commit definitely fixed a null pointer dereference, I am not sure if the CVE is referencing something else that was fixed by the first commit.
Gzip and Brotli Compression Level Estimator
2 projects | news.ycombinator.com | 10 Sep 2022
It is actually possible to estimate the compression level without actually compressing everything again, because different levels use different strategies which can be identified in some cases. zlib in particular has three strategies  and preflate  leverages this to store the deflate stream reconstruction data without much bits.
What does it take to be a good programmer?
2 projects | news.ycombinator.com | 29 Aug 2022
It's still a heap of old school C spaghetti https://github.com/madler/zlib/commit/eff308af425b67093bab25...
WinRAR zero-day exploited since April to hack trading accounts
3 projects | news.ycombinator.com | 23 Aug 2023
I don't have a preview channel install handy to check, but apparently they're using libarchive so here's the full list assuming they expose everything it supports:
Thanks for everything, WinRAR: Windows is finally getting native RAR support
2 projects | /r/Windows11 | 24 May 2023
libarchive is an existing open source project. Replacing the older compression code with libarchive was probably not that complicated and they'll get bug fixes from that active open source project for free. I would not be surprised if the initial port to libarchive was done by one person in a single day.
28 years later, Windows finally supports RAR files
And well, if you took a second to read the libarchive documentation (supported file formats) you'd find the following bullet point:
Read-only support (via libarchive). You still need the WinRAR app to create new RAR archives.
Microsoft adding RAR, 7z, Gz and more to the native ZIP extractor, and finally having it use more than 1 CPU core.
5 projects | /r/sysadmin | 23 May 2023
Be the change you want to see in this world!5 projects | /r/sysadmin | 23 May 2023
Can cuda help me here?
2 projects | /r/CUDA | 18 Mar 2023
IO speed is often a limiting factor, particularly with many small files. It might help to store the images in a zip file to avoid the overhead of opening and closing many files. It also improves throughput because in a zip file the small files will be stored contiguously while as regular files they'll each take up at least one disk block. When you store them in the zip file, disable compression because JPEGs are already compressed. Python has zip file access built-in, and in C you can use libzip or libarchive.
Was cross-compiling and cross-running tests always this simple?
7 projects | /r/rust | 16 Mar 2023
I am a noob and Rust is the first environment where I did cross compiling. I am also blown away by how easy and quick this works. However, with a new project it does not work anymore, because it involves a dynamic library (.so on Linux or .dll on Windows); specifically talking about libarchive with help of compress-tools.
Today is y2k38 commemoration day
13 projects | /r/linux | 18 Jan 2023
libarchive ... twice
What are some alternatives?
zstd - Zstandard - Fast real-time compression algorithm
LZ4 - Extremely Fast Compression algorithm
Onion - C library to create simple HTTP servers and Web Applications.
LZMA - (Unofficial) Git mirror of LZMA SDK releases
Snappy - A fast compressor/decompressor
Minizip-ng - Fork of the popular zip manipulation library found in the zlib distribution.
brotli - Brotli compression format
zlib-ng - zlib replacement with optimizations for "next generation" systems.
7z - Because 7-zip source code was in a 7z archive [mirror]
LZFSE - LZFSE compression library and command line tool
OpenSSL - TLS/SSL and crypto library
zlib-ng - zlib replacement with optimizations for "next generation" systems. [Moved to: https://github.com/zlib-ng/zlib-ng]