>> You can’t send file handles > Actually that's exactly how piping works Also S... | Hacker News

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		zwp on Jan 22, 2019 \| parent \| context \| favorite \| on: For the Love of Pipes >> You can’t send file handles > Actually that's exactly how piping works Also SCM_RIGHTS, which exists exactly for this purpose (see cmsg(3), unix(7) or https://blog.cloudflare.com/know-your-scm_rights/ for a gentler introduction and application). That's been around since BSD 4.3, which predates the Hater's Handbook 1ed by 4 years or so.

gpderetta on Jan 22, 2019 | [–]

And that's how Unix is secretly a capability system

laumars on Jan 22, 2019 | [–]

Yeah I had mentioned UNIX domain sockets. However your post does add a lot of good detail on them which I had left off.

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