ipv4: fix error values on header manipulation

This change makes header manipulation methods and functions return a nil
header error if the receiver or wire header is nil, a header too short
error if the header length field value of receiver or wire header is
short, and a extension header error if the wire extnsion header is
short.

Also replaces syscall.EWINDOWS or syscall.EPLAN9 with more descriptive,
platform independent error values.

Change-Id: I923fb60b1d68857cffc9df20f3f6cb2babbcdb1f
Reviewed-on: https://go-review.googlesource.com/c/net/+/129136
Reviewed-by: Matt Layher <mdlayher@gmail.com>
4 files changed
tree: 72253181555e3c9a74b87e074da9b54c645c4c5b
  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. LICENSE
  30. PATENTS
  31. README.md
README.md

Go Networking

This repository holds supplementary Go networking libraries.

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