go/src/net/rawconn_unix_test.go

func readRawConn(c syscall.RawConn, b []byte) (int, error) { … }

func writeRawConn(c syscall.RawConn, b []byte) error { … }

func controlRawConn(c syscall.RawConn, addr Addr) error { … }

func controlOnConnSetup(network string, address string, c syscall.RawConn) error { … }