SCM_RIGHTS
if (header->cmsg_level != SOL_SOCKET || header->cmsg_type != SCM_RIGHTS)
header.type = SCM_RIGHTS;
if (header.level != SOL_SOCKET || header.type != SCM_RIGHTS)
messageHeader->cmsg_type = SCM_RIGHTS;
cmsg->cmsg_type = SCM_RIGHTS;
if (cmsg->cmsg_type != SCM_RIGHTS) {