unix: require minimum OpenBSD 6.4 for pledge, unveil

OpenBSD 7.3 and 7.4 are the only supported OpenBSD releases.  This change simplifies the version detection and error handling to require at least OpenBSD 6.4 to call the Pledge and Unveil functions.

Updates golang/go#63569.

Change-Id: I6bd0d58807a73a532ddd2d3239687ca19a93db9d
GitHub-Last-Rev: d03d157e76d1d861fa8bd9be179f9dc4fb91f8d2
GitHub-Pull-Request: golang/sys#177
Reviewed-on: https://go-review.googlesource.com/c/sys/+/537355
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Joel Sing <joel@sing.id.au>
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Joel Sing <joel@sing.id.au>
2 files changed
tree: f40841662fa4e86203612b4616d2ade76d417971
  1. cpu/
  2. execabs/
  3. plan9/
  4. unix/
  5. windows/
  6. .gitattributes
  7. .gitignore
  8. codereview.cfg
  9. CONTRIBUTING.md
  10. go.mod
  11. LICENSE
  12. PATENTS
  13. README.md
README.md

sys

Go Reference

This repository holds supplemental Go packages for low-level interactions with the operating system.

Download/Install

The easiest way to install is to run go get -u golang.org/x/sys. You can also manually git clone the repository to $GOPATH/src/golang.org/x/sys.

Report Issues / Send Patches

This repository uses Gerrit for code changes. To learn how to submit changes to this repository, see https://golang.org/doc/contribute.html.

The main issue tracker for the sys repository is located at https://github.com/golang/go/issues. Prefix your issue with “x/sys:” in the subject line, so it is easy to find.