alloc_sockaddr_aligned
sa = alloc_sockaddr_aligned(lb, sizeof(struct sockaddr_in));
sa = alloc_sockaddr_aligned(lb, sizeof(struct sockaddr_dl_short));
if ((dst_sa = (struct sockaddr_in *)alloc_sockaddr_aligned(lb, sa_len)) == NULL)
if ((mask_sa = (struct sockaddr_in *)alloc_sockaddr_aligned(lb, sa_len)) == NULL)
if ((sa = alloc_sockaddr_aligned(lb, sa_len)) == NULL)
if ((sa = alloc_sockaddr_aligned(lb, sa_len)) == NULL)