mactype_unregister
(void) mactype_unregister(MAC_PLUGIN_IDENT_6TO4);
if ((err = mactype_unregister(MAC_PLUGIN_IDENT_6TO4)) != 0)
(void) mactype_unregister(MAC_PLUGIN_IDENT_ETHER);
if ((err = mactype_unregister(MAC_PLUGIN_IDENT_ETHER)) != 0)
(void) mactype_unregister(MAC_PLUGIN_IDENT_IB);
if ((err = mactype_unregister(MAC_PLUGIN_IDENT_IB)) != 0)
(void) mactype_unregister(MAC_PLUGIN_IDENT_IPV4);
if ((err = mactype_unregister(MAC_PLUGIN_IDENT_IPV4)) != 0)
(void) mactype_unregister(MAC_PLUGIN_IDENT_IPV6);
if ((err = mactype_unregister(MAC_PLUGIN_IDENT_IPV6)) != 0)
(void) mactype_unregister(MAC_PLUGIN_IDENT_WIFI);
if ((err = mactype_unregister(MAC_PLUGIN_IDENT_WIFI)) != 0)
extern int mactype_unregister(const char *);
extern int mactype_unregister(const char *);