return NULL;
}
+int dns_resource_record_new_reverse(DnsResourceRecord **ret, int family, const union in_addr_union *address, const char *hostname) {
+ _cleanup_(dns_resource_key_unrefp) DnsResourceKey *key = NULL;
+ _cleanup_(dns_resource_record_unrefp) DnsResourceRecord *rr = NULL;
+ _cleanup_free_ char *ptr = NULL;
+ int r;
+
+ assert(ret);
+ assert(address);
+ assert(hostname);
+
+ r = dns_name_reverse(family, address, &ptr);
+ if (r < 0)
+ return r;
+
+ key = dns_resource_key_new_consume(DNS_CLASS_IN, DNS_TYPE_PTR, ptr);
+ if (!key)
+ return -ENOMEM;
+
+ ptr = NULL;
+
+ rr = dns_resource_record_new(key);
+ if (!rr)
+ return -ENOMEM;
+
+ rr->ptr.name = strdup(hostname);
+ if (!rr->ptr.name)
+ return -ENOMEM;
+
+ *ret = rr;
+ rr = NULL;
+
+ return 0;
+}
+
int dns_resource_record_equal(const DnsResourceRecord *a, const DnsResourceRecord *b) {
int r;