ipv4: work around FreeBSD 12 kernel running COMPAT_FREEBSD32

On FreeBSD 12 kernel running COMPAT_FREEBSD32, it looks like the system
call recvmsg always returns an incorrect​ length for the out-of-band
data. This change adjusts the length when it looks incorrect.

Fixes golang/go#30899.

Change-Id: Ibb0cbcf9b1f5f959279c20395916d47bd75d289c
Reviewed-on: https://go-review.googlesource.com/c/net/+/168077
Reviewed-by: Ian Lance Taylor <iant@golang.org>
5 files changed
tree: 1408fa434f103890900f4552d2f1de81cf153aa3
  1. bpf/
  2. context/
  3. dict/
  4. dns/
  5. html/
  6. http/
  7. http2/
  8. icmp/
  9. idna/
  10. internal/
  11. ipv4/
  12. ipv6/
  13. lif/
  14. nettest/
  15. netutil/
  16. proxy/
  17. publicsuffix/
  18. route/
  19. trace/
  20. webdav/
  21. websocket/
  22. xsrftoken/
  23. .gitattributes
  24. .gitignore
  25. AUTHORS
  26. codereview.cfg
  27. CONTRIBUTING.md
  28. CONTRIBUTORS
  29. go.mod
  30. go.sum
  31. LICENSE
  32. PATENTS
  33. README.md
README.md

Go Networking

This repository holds supplementary Go networking libraries.

Download/Install

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

Report Issues / Send Patches

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