svcudp_data
register struct svcudp_data *su;
su = (struct svcudp_data *)mem_alloc(sizeof (*su));
register struct svcudp_data *su = su_data(xprt);
register struct svcudp_data *su = su_data(xprt);
register struct svcudp_data *su = su_data(xprt);
mem_free((caddr_t)su, sizeof (struct svcudp_data));
struct svcudp_data *su = su_data(transp);
register struct svcudp_data *su = su_data(xprt);
register struct svcudp_data *su = su_data(xprt);
#define su_data(xprt) ((struct svcudp_data *)(xprt->xp_p2))