120 lines
4.1 KiB
C++
120 lines
4.1 KiB
C++
#include "ares-test.h"
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#include "dns-proto.h"
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#include <sstream>
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#include <vector>
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namespace ares {
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namespace test {
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TEST_F(LibraryTest, ParseNsReplyOK) {
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DNSPacket pkt;
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pkt.set_qid(0x1234).set_response().set_aa()
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.add_question(new DNSQuestion("example.com", ns_t_ns))
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.add_answer(new DNSNsRR("example.com", 100, "ns.example.com"));
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std::vector<byte> data = pkt.data();
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struct hostent *host = nullptr;
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EXPECT_EQ(ARES_SUCCESS, ares_parse_ns_reply(data.data(), data.size(), &host));
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ASSERT_NE(nullptr, host);
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std::stringstream ss;
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ss << HostEnt(host);
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EXPECT_EQ("{'example.com' aliases=[ns.example.com] addrs=[]}", ss.str());
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ares_free_hostent(host);
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}
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TEST_F(LibraryTest, ParseNsReplyMultiple) {
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DNSPacket pkt;
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pkt.set_qid(10501).set_response().set_rd().set_ra()
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.add_question(new DNSQuestion("google.com", ns_t_ns))
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.add_answer(new DNSNsRR("google.com", 59, "ns1.google.com"))
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.add_answer(new DNSNsRR("google.com", 59, "ns2.google.com"))
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.add_answer(new DNSNsRR("google.com", 59, "ns3.google.com"))
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.add_answer(new DNSNsRR("google.com", 59, "ns4.google.com"))
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.add_additional(new DNSARR("ns4.google.com", 247, {216,239,38,10}))
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.add_additional(new DNSARR("ns2.google.com", 247, {216,239,34,10}))
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.add_additional(new DNSARR("ns1.google.com", 247, {216,239,32,10}))
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.add_additional(new DNSARR("ns3.google.com", 247, {216,239,36,10}));
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std::vector<byte> data = pkt.data();
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struct hostent *host = nullptr;
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EXPECT_EQ(ARES_SUCCESS, ares_parse_ns_reply(data.data(), data.size(), &host));
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ASSERT_NE(nullptr, host);
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std::stringstream ss;
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ss << HostEnt(host);
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EXPECT_EQ("{'google.com' aliases=[ns1.google.com, ns2.google.com, ns3.google.com, ns4.google.com] addrs=[]}", ss.str());
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ares_free_hostent(host);
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}
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TEST_F(LibraryTest, ParseNsReplyErrors) {
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DNSPacket pkt;
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pkt.set_qid(0x1234).set_response().set_aa()
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.add_question(new DNSQuestion("example.com", ns_t_ns))
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.add_answer(new DNSNsRR("example.com", 100, "ns.example.com"));
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std::vector<byte> data;
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struct hostent *host = nullptr;
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// No question.
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pkt.questions_.clear();
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data = pkt.data();
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EXPECT_EQ(ARES_EBADRESP, ares_parse_ns_reply(data.data(), data.size(), &host));
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pkt.add_question(new DNSQuestion("example.com", ns_t_ns));
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#ifdef DISABLED
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// Question != answer
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pkt.questions_.clear();
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pkt.add_question(new DNSQuestion("Axample.com", ns_t_ns));
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data = pkt.data();
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EXPECT_EQ(ARES_ENODATA, ares_parse_ns_reply(data.data(), data.size(), &host));
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pkt.questions_.clear();
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pkt.add_question(new DNSQuestion("example.com", ns_t_ns));
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#endif
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// Two questions.
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pkt.add_question(new DNSQuestion("example.com", ns_t_ns));
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data = pkt.data();
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EXPECT_EQ(ARES_EBADRESP, ares_parse_ns_reply(data.data(), data.size(), &host));
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pkt.questions_.clear();
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pkt.add_question(new DNSQuestion("example.com", ns_t_ns));
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// Wrong sort of answer.
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pkt.answers_.clear();
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pkt.add_answer(new DNSMxRR("example.com", 100, 100, "mx1.example.com"));
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data = pkt.data();
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EXPECT_EQ(ARES_ENODATA, ares_parse_ns_reply(data.data(), data.size(), &host));
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pkt.answers_.clear();
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pkt.add_answer(new DNSNsRR("example.com", 100, "ns.example.com"));
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// No answer.
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pkt.answers_.clear();
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data = pkt.data();
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EXPECT_EQ(ARES_ENODATA, ares_parse_ns_reply(data.data(), data.size(), &host));
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pkt.add_answer(new DNSNsRR("example.com", 100, "ns.example.com"));
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// Truncated packets.
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data = pkt.data();
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for (size_t len = 1; len < data.size(); len++) {
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EXPECT_EQ(ARES_EBADRESP, ares_parse_ns_reply(data.data(), len, &host));
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}
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}
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TEST_F(LibraryTest, ParseNsReplyAllocFail) {
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DNSPacket pkt;
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pkt.set_qid(0x1234).set_response().set_aa()
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.add_question(new DNSQuestion("example.com", ns_t_ns))
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.add_answer(new DNSCnameRR("example.com", 300, "c.example.com"))
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.add_answer(new DNSNsRR("c.example.com", 100, "ns.example.com"));
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std::vector<byte> data = pkt.data();
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struct hostent *host = nullptr;
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for (int ii = 1; ii <= 8; ii++) {
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ClearFails();
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SetAllocFail(ii);
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EXPECT_EQ(ARES_ENOMEM, ares_parse_ns_reply(data.data(), data.size(), &host)) << ii;
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}
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}
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} // namespace test
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} // namespace ares
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