iked: fix iked_cp_fixaddr()

[Patrick Wildt]

Hi,

iked_cp_fixaddr() is called to replace unspecified (e.g. 0.0.0.0)
addresses by specified (e.g. 192.0.2.1) ones.  The function should
return if the address is already set.  The check is wrong for the
IPv6 case, as it returns if it's not set.  This causes the address
to never be fixed.

ok?

Patrick

diff --git sbin/iked/ikev2.c sbin/iked/ikev2.c
index 22e7661..7d36800 100644
--- sbin/iked/ikev2.c
+++ sbin/iked/ikev2.c
@@ -5156,7 +5156,7 @@ ikev2_cp_fixaddr(struct iked_sa *sa, struct iked_addr 
*addr,
                break;
        case AF_INET6:
                in6 = (struct sockaddr_in6 *)&addr->addr;
-               if (IN6_IS_ADDR_UNSPECIFIED(&in6->sin6_addr))
+               if (!IN6_IS_ADDR_UNSPECIFIED(&in6->sin6_addr))
                        return (-1);
                break;
        }