GLIBC_PRIVATE {
  global:
    _nss_dns_gethostbyaddr2_r;
    _nss_dns_gethostbyaddr_r; _nss_dns_gethostbyname2_r;
    _nss_dns_gethostbyname3_r;
    _nss_dns_gethostbyname4_r;
    _nss_dns_gethostbyname_r; _nss_dns_getnetbyaddr_r;
    _nss_dns_getnetbyname_r; _nss_dns_getcanonname_r;
  local:
    *;
};