Implement dd.

[bmusin]

Hi. I'm currently porting OpenBSD's dd.
One third is done, various conv block transformations and copying is left.
Prototype will be up to 7th Jan.

[bmusin]

Is it allowed to use features from nightly?

[Arcterus]

Great! I don’t know if it’ll be helpful but I have some stuff here that you can use. Also please do not use nightly features.

[bmusin]

@Arcterus, should it adhere strictly to latest POSIX or copy GNU coreutils' features?
I think former is better, also because it's easier to implement -> less bugs.

[Arcterus]

It should copy the GNU extensions, but if you’d prefer to just implement POSIX for now that is fine as well.

Note that we should be checking the POSIXLY_CORRECT variable but haven’t done so yet, so if you want to hide the GNU extensions behind that, feel free to do so.

[donkey-hotei]

Can I claim this? Looks as if no progress was made on the dd port since February 2018.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[emanueleaina]

Implementation ongoing under #1861

[tertsdiepraam]

Implemented in #2474