Fixes

src/dnslib/packet.c

@@ -822,19 +822,19 @@ int dnslib_packet_contains(const dnslib_packet_t *packet,
                            dnslib_rrset_compare_type_t cmp)
 {
 	for (int i = 0; i < packet->header.ancount; ++i) {
-		if (packet->answer[i] == rrset) {
+		if (dnslib_rrset_compare(packet->answer[i], rrset, cmp)) {
 			return 1;
 		}
 	}
 
 	for (int i = 0; i < packet->header.nscount; ++i) {
-		if (packet->authority[i] == rrset) {
+		if (dnslib_rrset_compare(packet->authority[i], rrset, cmp)) {
 			return 1;
 		}
 	}
 
 	for (int i = 0; i < packet->header.arcount; ++i) {
-		if (packet->additional[i] == rrset) {
+		if (dnslib_rrset_compare(packet->additional[i], rrset, cmp)) {
 			return 1;
 		}
 	}

src/dnslib/response2.c

@@ -877,7 +877,8 @@ int dnslib_response_add_rrset_answer(dnslib_packet_t *response,
 		return DNSLIB_ENOMEM;
 	}
 
-	if (check_duplicates && dnslib_packet_contains(response, rrset)) {
+	if (check_duplicates && dnslib_packet_contains(response, rrset,
+	                                            DNSLIB_RRSET_COMPARE_PTR)) {
 		return DNSLIB_EOK;
 	}
 
@@ -919,7 +920,8 @@ int dnslib_response_add_rrset_authority(dnslib_packet_t *response,
 		return DNSLIB_ENOMEM;
 	}
 
-	if (check_duplicates && dnslib_packet_contains(response, rrset)) {
+	if (check_duplicates && dnslib_packet_contains(response, rrset,
+	                                           DNSLIB_RRSET_COMPARE_PTR))) {
 		return DNSLIB_EOK;
 	}
 
@@ -963,7 +965,8 @@ int dnslib_response_add_rrset_additional(dnslib_packet_t *response,
 		return DNSLIB_ENOMEM;
 	}
 
-	if (check_duplicates && dnslib_packet_contains(response, rrset)) {
+	if (check_duplicates && dnslib_packet_contains(response, rrset,
+	                                            DNSLIB_RRSET_COMPARE_PTR)) {
 		return DNSLIB_EOK;
 	}