public static extern ErrorCode osip_from_clone(osip_from_t *header, osip_from_t **dest);
public static extern ErrorCode osip_from_init(osip_from_t **header);
public static extern ErrorCode osip_from_clone(osip_from_t *header, osip_from_t **dest);
public static extern ErrorCode osip_from_init(osip_from_t **header);