libnbd
rsl
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libnbd
- jq 1.7 Released
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Fuzzing ping(8) and finding a 24 year old bug
Below is the small framework we use to fuzz a network client. It works by creating a Unix socket, forking, then having the client (under test) on one side of the socket and a small loop which reads the input file into the socket on the other side.
https://gitlab.com/nbdkit/libnbd/-/tree/master/fuzzing
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The fastest way to copy a file
We did a bunch of benchmarking around this when writing nbdcopy (https://gitlab.com/nbdkit/libnbd/-/tree/master/copy) which can copy file to file as well as between local files and NBD servers. There was also the goal to avoid polluting the page cache, which depending on if you're going to use the file content immediately afterwards or not matters.
Anyway long story short, the best thing we found (for Linux) was Linus's own advice linked from here: https://stackoverflow.com/a/3756466
- A 100LOC C impl of memset, that is faster than glibc's
rsl
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jq 1.7 Released
on a similar note I wrote little tool to convert from many formats to many formats
the biggest usecase for me is taking some csv, toml, xml, whatever and converting that to json so I can pipe to jq
https://github.com/sentriz/rsl
What are some alternatives?
nbdkit
jq-mode - Emacs major mode for editing jq queries.
jackson-jq - jq for Jackson Java JSON Processor
counsel-jq - Traverse complex JSON and YAML structures with live feedback
memset_benchmark - This repository contains high-performance implementations of memset and memcpy in assembly.
yq - Command-line YAML, XML, TOML processor - jq wrapper for YAML/XML/TOML documents
safeclib - safec libc extension with all C11 Annex K functions
jet - CLI to transform between JSON, EDN, YAML and Transit using Clojure
qemu
fx - Terminal JSON viewer & processor
Newman - Newman is a command-line collection runner for Postman
jmespath.py - JMESPath is a query language for JSON.