static int route_scope_from_address(const Route *route, const struct in_addr *self_addr) {
assert(route);
assert(self_addr);
if (in_addr_is_localhost(AF_INET, &route->dst) ||
(self_addr->s_addr && route->dst.in.s_addr == self_addr->s_addr))
return RT_SCOPE_HOST;
else if (in4_addr_is_null(&route->gw.in))
return RT_SCOPE_LINK;
else
return RT_SCOPE_UNIVERSE;
}
static int radv_get_ip6dns(Network *network, struct in6_addr **dns,
size_t *n_dns) {
_cleanup_free_ struct in6_addr *addresses = NULL;
size_t i, n_addresses = 0, n_allocated = 0;
assert(network);
assert(dns);
assert(n_dns);
for (i = 0; i < network->n_dns; i++) {
union in_addr_union *addr;
if (network->dns[i].family != AF_INET6)
continue;
addr = &network->dns[i].address;
if (in_addr_is_null(AF_INET6, addr) ||
in_addr_is_link_local(AF_INET6, addr) ||
in_addr_is_localhost(AF_INET6, addr))
continue;
if (!GREEDY_REALLOC(addresses, n_allocated, n_addresses + 1))
return -ENOMEM;
addresses[n_addresses++] = addr->in6;
}
if (addresses) {
*dns = addresses;
addresses = NULL;
*n_dns = n_addresses;
}
return n_addresses;
}