R_Malloc
R_Malloc(rnh, struct radix_node_head *, sizeof (*rnh));
R_Malloc(rn_zeros, char *, 3 * max_keylen);
R_Malloc(x, struct radix_node *, max_keylen + 2 * sizeof (*x));
R_Malloc(m, struct radix_mask *, sizeof (*(m))); }\
R_Malloc(rtq, struct rttimer_queue *, sizeof *rtq);
R_Malloc(*new_rtm, struct rt_xmsghdr *, len);
R_Malloc(rtm, struct rt_xmsghdr *, len);