for i := 0; len(sa.Data) > i && i < l-4; i++ {
		sa.Data[i] = int8(b[i])
	}
	return sa, rsaAlignOf(l), nil
}

// parseSockaddrInet parses b as an internet socket address.
func parseSockaddrInet(b []byte, family byte) (Sockaddr, error) {
	switch family {
	case AF_INET:
		if len(b) < SizeofSockaddrInet4 {
			return nil, EINVAL
		}