DNS_NAMEATTR_READONLY
DNS_NAMEATTR_READONLY | DNS_NAMEATTR_ABSOLUTE, \
REQUIRE((name->attributes & DNS_NAMEATTR_READONLY) == 0);
((name->attributes & (DNS_NAMEATTR_READONLY|DNS_NAMEATTR_DYNAMIC)) \
DNS_NAMEATTR_READONLY;
(unsigned int)~(DNS_NAMEATTR_READONLY | DNS_NAMEATTR_DYNAMIC |