(note for anyone coming by in the future: that link is not the best one, https://github.com/golang/go/blob/fe8a0d12b14108cbe2408b417afcaab722b0727c/src/net/cgo

(note for anyone coming by in the future: that link is not the best one, https://github.com/golang/go/blob/fe8a0d12b14108cbe2408b417afcaab722b0727c/src/net/cgo_unix.go#L5-L18 https://github.com/golang/go/blob/fe8a0d12b14108cbe2408b417a... is where most of the cgo code for linux is)