_krb5_plugin_find
ret = _krb5_plugin_find(context, PLUGIN_TYPE_DATA, "windc", &list);
ret = _krb5_plugin_find(context, PLUGIN_TYPE_DATA, "hdb", &list);
_krb5_plugin_find (
ret = _krb5_plugin_find(context, PLUGIN_TYPE_DATA,
code = _krb5_plugin_find(context, PLUGIN_TYPE_DATA, KRB5_PLUGIN_CCACHE,
ret = _krb5_plugin_find(context, PLUGIN_TYPE_DATA, KRB5_PLUGIN_SEND_TO_KDC, &list);