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resolved: add test case from #33671
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@ -1267,4 +1267,34 @@ TEST(packet_append_answer_single_svcb) {
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ASSERT_EQ(memcmp(DNS_PACKET_DATA(packet), data, sizeof(data)), 0);
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}
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static void dump_packet_data(DnsPacket *packet) {
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assert(packet);
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fprintf(stderr, "packet bytes:");
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for (size_t i = 0; i < packet->size; i++)
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fprintf(stderr, " %x", DNS_PACKET_DATA(packet)[i]);
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fprintf(stderr, "\n");
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}
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TEST(packet_append_key_name_too_long) {
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_cleanup_(dns_packet_unrefp) DnsPacket *packet = NULL;
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_cleanup_(dns_resource_key_unrefp) DnsResourceKey *key = NULL;
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int r;
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ASSERT_OK(dns_packet_new(&packet, DNS_PROTOCOL_DNS, 0, DNS_PACKET_SIZE_MAX));
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DNS_PACKET_ID(packet) = htobe16(42);
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DNS_PACKET_HEADER(packet)->flags = htobe16(DNS_PACKET_MAKE_FLAGS(0, 0, 0, 0, 1, 0, 0, 0, 0));
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DNS_PACKET_HEADER(packet)->qdcount = htobe16(1);
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key = ASSERT_PTR(dns_resource_key_new(DNS_CLASS_IN, DNS_TYPE_A, "www.aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa.com"));
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r = dns_packet_append_key(packet, key, 0, NULL);
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log_debug("r = %d, size = %zu", r, packet->size);
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log_debug("key name = <%s>", dns_resource_key_name(key));
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dump_packet_data(packet);
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ASSERT_EQ(r, -EINVAL);
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ASSERT_EQ(packet->size, 12U);
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}
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DEFINE_TEST_MAIN(LOG_DEBUG)
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