Refactor GetMainNICAddress

It previously returned an error but it could only be UnknownNICID. It now
returns a boolean to indicate whether the nic exists or not.

PiperOrigin-RevId: 353337489
6 files changed
tree: be7f79d4b2e607cb58a42b834f06c6730ca017e3
  1. pkg/
  2. AUTHORS
  3. go.mod
  4. go.sum
  5. LICENSE