NetBSD 9.0 release process has started, xargs, a tale of two spellcheckers, Adapting TriforceAFL for NetBSD, Exploiting a no-name freebsd kernel vulnerability, and more.Headlines NetBSD 9.0 release process has started
If you have been following source-changes, you may have noticed the creation of the netbsd-9 branch! It has some really exciting items that we worked on:
We try to test NetBSD as best as we can, but your testing can help NetBSD 9.0 a great release. Please test it and let us know of any bugs you find.
xargs is probably one of the more difficult to understand of the unix command arsenal and of course that just means it’s one of the most useful too.
I discovered a handy trick that I thought was worth a share. Please note there are probably other (better) ways to do this but I did my stackoverflow research and found nothing better.
xargs — at least how I’ve most utilized it — is handy for taking some number of lines as input and doing some work per line. It’s hard to be more specific than that as it does so much else.
It literally took me an hour of piecing together random man pages + tips from 11 year olds on stack overflow, but eventually I produced this gem:
This is an example of how to find files matching a certain pattern and rename each of them. It sounds so trivial (and it is) but it demonstrates some cool tricks in an easy concept.
This is a transcript of the talk I gave at pkgsrcCon 2019 in Cambridge, UK. It is about spellcheckers, but there are much more general software engineering lessons that we can learn from this case study.
The reason I got into this subject at all was my paternal leave last year, when I finally had some more time to spend working on pkgsrc. It was a tiny item in the enormous TODO file at the top of the source tree (“update enchant to version 2.2”) that made me go into this rabbit hole.
I have been working on adapting TriforceAFL for NetBSD kernel syscall fuzzing. This blog post summarizes the work done until the second evaluation.
For work done during the first coding period, check out this post.
Huawei E5770s-320 4G LTE 150 Mbps Mobile WiFi Pro
AOW Global Data SIM Card for On-Demand 4G LTE Mobile Data in Over 90 Countries
All my devices charge from USB-C, so that is great
More USB thumb drives than strictly necessary
My Lenovo X270 laptop running FreeBSD 13-current
My 2016 Macbook Pro (a prize from the raffle at vBSDCon 2017) that I use for email and video conferencing to preserve battery on my FreeBSD machine for work
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