X509V3_EXT_UNKNOWN_MASK
{ "ext_default", X509V3_EXT_DEFAULT, X509V3_EXT_UNKNOWN_MASK },
{ "ext_error", X509V3_EXT_ERROR_UNKNOWN, X509V3_EXT_UNKNOWN_MASK },
{ "ext_parse", X509V3_EXT_PARSE_UNKNOWN, X509V3_EXT_UNKNOWN_MASK },
{ "ext_dump", X509V3_EXT_DUMP_UNKNOWN, X509V3_EXT_UNKNOWN_MASK },
switch (flag & X509V3_EXT_UNKNOWN_MASK) {