[james4k]

Go's net package has its own resolver. See http://golang.org/src/pkg/net/dnsclient.go http://golang.org/src/pkg/net/dnsclient_unix.go

But yes, it does not appear to be used anywhere now, as all of the dns lookups for each platform seem to end up at cgo calls.

[CUR10US]

Interesting to read the comments. They should just rewrite the C resolver library for UNIX. Let's face it, the Plan 9^W^WGo team would probably produce a more elegant result than what we're using now, which has had its share of bugs over the years.