prison_remote_ip6
if (p != NULL && (error = prison_remote_ip6(p->td_ucred, &sin6->sin6_addr)) != 0) {
if ((error = prison_remote_ip6(td->td_ucred,
if ((error = prison_remote_ip6(td->td_ucred, &sin6->sin6_addr)) != 0)
if ((error = prison_remote_ip6(inp->inp_cred, &sin6->sin6_addr)) != 0)
error = prison_remote_ip6(td->td_ucred, &sin6->sin6_addr);
int prison_remote_ip6(struct ucred *, struct in6_addr *);