linux_get_sa
static int linux_get_sa(struct lwp *, int, struct sockaddr_big *,
error = linux_get_sa(l, SCARG(uap, s), &sb, SCARG(uap, name),
error = linux_get_sa(l, SCARG(uap, s), &sb, SCARG(uap, name),
error = linux_get_sa(l, SCARG(uap, s), &nam, SCARG(uap, to),
error = linux_get_sa(l, SCARG(uap, s), &nam, msg.msg_name,