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-rw-r--r--src/c-ares/test/dns-proto-test.cc131
1 files changed, 131 insertions, 0 deletions
diff --git a/src/c-ares/test/dns-proto-test.cc b/src/c-ares/test/dns-proto-test.cc
new file mode 100644
index 000000000..0c36a0c92
--- /dev/null
+++ b/src/c-ares/test/dns-proto-test.cc
@@ -0,0 +1,131 @@
+#include "ares-test.h"
+#include "dns-proto.h"
+
+#include <vector>
+
+namespace ares {
+namespace test {
+
+TEST(DNSProto, EncodeQuestions) {
+ DNSPacket pkt;
+ pkt.set_qid(0x1234).set_response().set_aa()
+ .add_question(new DNSQuestion("example.com.", ns_t_a))
+ .add_question(new DNSQuestion("www.example.com", ns_t_aaaa, ns_c_chaos));
+
+ std::vector<byte> data = {
+ 0x12, 0x34, // qid
+ 0x84, // response + query + AA + not-TC + not-RD
+ 0x00, // not-RA + not-Z + not-AD + not-CD + rc=NoError
+ 0x00, 0x02, // num questions
+ 0x00, 0x00, // num answer RRs
+ 0x00, 0x00, // num authority RRs
+ 0x00, 0x00, // num additional RRs
+ // Question 1
+ 0x07, 'e', 'x', 'a', 'm', 'p', 'l', 'e',
+ 0x03, 'c', 'o', 'm',
+ 0x00,
+ 0x00, 0x01, // type A
+ 0x00, 0x01, // class IN
+ // Question 2
+ 0x03, 'w', 'w', 'w',
+ 0x07, 'e', 'x', 'a', 'm', 'p', 'l', 'e',
+ 0x03, 'c', 'o', 'm',
+ 0x00,
+ 0x00, 0x1C, // type AAAA = 28
+ 0x00, 0x03, // class CHAOS = 3
+ };
+ EXPECT_EQ(data, pkt.data());
+}
+
+TEST(DNSProto, EncodeSingleNameAnswers) {
+ DNSPacket pkt;
+ pkt.qid_ = 0x1234;
+ pkt.response_ = true;
+ pkt.aa_ = true;
+ pkt.opcode_ = ns_o_query;
+ pkt.add_answer(new DNSCnameRR("example.com", 0x01020304, "other.com."));
+ pkt.add_auth(new DNSPtrRR("www.example.com", 0x01020304, "www.other.com"));
+
+ std::vector<byte> data = {
+ 0x12, 0x34, // qid
+ 0x84, // response + query + AA + not-TC + not-RD
+ 0x00, // not-RA + not-Z + not-AD + not-CD + rc=NoError
+ 0x00, 0x00, // num questions
+ 0x00, 0x01, // num answer RRs
+ 0x00, 0x01, // num authority RRs
+ 0x00, 0x00, // num additional RRs
+ // Answer 1
+ 0x07, 'e', 'x', 'a', 'm', 'p', 'l', 'e',
+ 0x03, 'c', 'o', 'm',
+ 0x00,
+ 0x00, 0x05, // RR type
+ 0x00, 0x01, // class IN
+ 0x01, 0x02, 0x03, 0x04, // TTL
+ 0x00, 0x0B, // rdata length
+ 0x05, 'o', 't', 'h', 'e', 'r',
+ 0x03, 'c', 'o', 'm',
+ 0x00,
+ // Authority 1
+ 0x03, 'w', 'w', 'w',
+ 0x07, 'e', 'x', 'a', 'm', 'p', 'l', 'e',
+ 0x03, 'c', 'o', 'm',
+ 0x00,
+ 0x00, 0x0c, // RR type
+ 0x00, 0x01, // class IN
+ 0x01, 0x02, 0x03, 0x04, // TTL
+ 0x00, 0x0F, // rdata length
+ 0x03, 'w', 'w', 'w',
+ 0x05, 'o', 't', 'h', 'e', 'r',
+ 0x03, 'c', 'o', 'm',
+ 0x00,
+ };
+ EXPECT_EQ(data, pkt.data());
+}
+
+TEST(DNSProto, EncodeAddressAnswers) {
+ DNSPacket pkt;
+ pkt.qid_ = 0x1234;
+ pkt.response_ = true;
+ pkt.aa_ = true;
+ pkt.opcode_ = ns_o_query;
+ std::vector<byte> addrv4 = {0x02, 0x03, 0x04, 0x05};
+ pkt.add_answer(new DNSARR("example.com", 0x01020304, addrv4));
+ byte addrv6[16] = {0x01, 0x01, 0x01, 0x01, 0x02, 0x02, 0x02, 0x02,
+ 0x03, 0x03, 0x03, 0x03, 0x04, 0x04, 0x04, 0x04};
+ pkt.add_additional(new DNSAaaaRR("www.example.com", 0x01020304, addrv6, 16));
+
+ std::vector<byte> data = {
+ 0x12, 0x34, // qid
+ 0x84, // response + query + AA + not-TC + not-RD
+ 0x00, // not-RA + not-Z + not-AD + not-CD + rc=NoError
+ 0x00, 0x00, // num questions
+ 0x00, 0x01, // num answer RRs
+ 0x00, 0x00, // num authority RRs
+ 0x00, 0x01, // num additional RRs
+ // Answer 1
+ 0x07, 'e', 'x', 'a', 'm', 'p', 'l', 'e',
+ 0x03, 'c', 'o', 'm',
+ 0x00,
+ 0x00, 0x01, // RR type
+ 0x00, 0x01, // class IN
+ 0x01, 0x02, 0x03, 0x04, // TTL
+ 0x00, 0x04, // rdata length
+ 0x02, 0x03, 0x04, 0x05,
+ // Additional 1
+ 0x03, 'w', 'w', 'w',
+ 0x07, 'e', 'x', 'a', 'm', 'p', 'l', 'e',
+ 0x03, 'c', 'o', 'm',
+ 0x00,
+ 0x00, 0x1c, // RR type
+ 0x00, 0x01, // class IN
+ 0x01, 0x02, 0x03, 0x04, // TTL
+ 0x00, 0x10, // rdata length
+ 0x01, 0x01, 0x01, 0x01, 0x02, 0x02, 0x02, 0x02,
+ 0x03, 0x03, 0x03, 0x03, 0x04, 0x04, 0x04, 0x04
+ };
+ EXPECT_EQ(data, pkt.data());
+}
+
+
+} // namespace test
+} // namespace ares