1 files changed, 148 insertions, 0 deletions
diff --git a/fluent-bit/lib/c-ares-1.19.1/test/ares-test-parse-naptr.cc b/fluent-bit/lib/c-ares-1.19.1/test/ares-test-parse-naptr.cc
new file mode 100644
index 00000000..aa1a2a50
--- /dev/null
+++ b/fluent-bit/lib/c-ares-1.19.1/test/ares-test-parse-naptr.cc
@@ -0,0 +1,148 @@
+#include "ares-test.h"
+#include "dns-proto.h"
+
+#include <sstream>
+#include <vector>
+
+namespace ares {
+namespace test {
+
+TEST_F(LibraryTest, ParseNaptrReplyOK) {
+  DNSPacket pkt;
+  pkt.set_qid(0x1234).set_response().set_aa()
+    .add_question(new DNSQuestion("example.com", T_NAPTR))
+    .add_answer(new DNSNaptrRR("example.com", 100,
+                               10, 20, "SP", "service", "regexp", "replace"))
+    .add_answer(new DNSNaptrRR("example.com", 0x0010,
+                               11, 21, "SP", "service2", "regexp2", "replace2"));
+  std::vector<byte> data = pkt.data();
+
+  struct ares_naptr_reply* naptr = nullptr;
+  EXPECT_EQ(ARES_SUCCESS, ares_parse_naptr_reply(data.data(), data.size(), &naptr));
+  ASSERT_NE(nullptr, naptr);
+  EXPECT_EQ("SP", std::string((char*)naptr->flags));
+  EXPECT_EQ("service", std::string((char*)naptr->service));
+  EXPECT_EQ("regexp", std::string((char*)naptr->regexp));
+  EXPECT_EQ("replace", std::string((char*)naptr->replacement));
+  EXPECT_EQ(10, naptr->order);
+  EXPECT_EQ(20, naptr->preference);
+
+  struct ares_naptr_reply* naptr2 = naptr->next;
+  ASSERT_NE(nullptr, naptr2);
+  EXPECT_EQ("SP", std::string((char*)naptr2->flags));
+  EXPECT_EQ("service2", std::string((char*)naptr2->service));
+  EXPECT_EQ("regexp2", std::string((char*)naptr2->regexp));
+  EXPECT_EQ("replace2", std::string((char*)naptr2->replacement));
+  EXPECT_EQ(11, naptr2->order);
+  EXPECT_EQ(21, naptr2->preference);
+  EXPECT_EQ(nullptr, naptr2->next);
+
+  ares_free_data(naptr);
+}
+
+TEST_F(LibraryTest, ParseNaptrReplyErrors) {
+  DNSPacket pkt;
+  pkt.set_qid(0x1234).set_response().set_aa()
+    .add_question(new DNSQuestion("example.com", T_NAPTR))
+    .add_answer(new DNSNaptrRR("example.com", 100,
+                               10, 20, "SP", "service", "regexp", "replace"));
+  std::vector<byte> data;
+  struct ares_naptr_reply* naptr = nullptr;
+
+  // No question.
+  pkt.questions_.clear();
+  data = pkt.data();
+  EXPECT_EQ(ARES_EBADRESP, ares_parse_naptr_reply(data.data(), data.size(), &naptr));
+  pkt.add_question(new DNSQuestion("example.com", T_NAPTR));
+
+#ifdef DISABLED
+  // Question != answer
+  pkt.questions_.clear();
+  pkt.add_question(new DNSQuestion("Axample.com", T_NAPTR));
+  data = pkt.data();
+  EXPECT_EQ(ARES_ENODATA, ares_parse_naptr_reply(data.data(), data.size(), &naptr));
+  pkt.questions_.clear();
+  pkt.add_question(new DNSQuestion("example.com", T_NAPTR));
+#endif
+
+  // Two questions
+  pkt.add_question(new DNSQuestion("example.com", T_NAPTR));
+  data = pkt.data();
+  EXPECT_EQ(ARES_EBADRESP, ares_parse_naptr_reply(data.data(), data.size(), &naptr));
+  pkt.questions_.clear();
+  pkt.add_question(new DNSQuestion("example.com", T_NAPTR));
+
+  // Wrong sort of answer.
+  pkt.answers_.clear();
+  pkt.add_answer(new DNSMxRR("example.com", 100, 100, "mx1.example.com"));
+  data = pkt.data();
+  EXPECT_EQ(ARES_SUCCESS, ares_parse_naptr_reply(data.data(), data.size(), &naptr));
+  EXPECT_EQ(nullptr, naptr);
+  pkt.answers_.clear();
+  pkt.add_answer(new DNSNaptrRR("example.com", 100,
+                               10, 20, "SP", "service", "regexp", "replace"));
+
+  // No answer.
+  pkt.answers_.clear();
+  data = pkt.data();
+  EXPECT_EQ(ARES_ENODATA, ares_parse_naptr_reply(data.data(), data.size(), &naptr));
+  pkt.add_answer(new DNSNaptrRR("example.com", 100,
+                               10, 20, "SP", "service", "regexp", "replace"));
+
+  // Truncated packets.
+  data = pkt.data();
+  for (size_t len = 1; len < data.size(); len++) {
+    int rc = ares_parse_naptr_reply(data.data(), len, &naptr);
+    EXPECT_TRUE(rc == ARES_EBADRESP || rc == ARES_EBADNAME);
+  }
+}
+
+TEST_F(LibraryTest, ParseNaptrReplyTooShort) {
+  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, 0x01,  // num questions
+    0x00, 0x01,  // num answer RRs
+    0x00, 0x00,  // num authority RRs
+    0x00, 0x00,  // num additional RRs
+    // Question
+    0x07, 'e', 'x', 'a', 'm', 'p', 'l', 'e',
+    0x03, 'c', 'o', 'm',
+    0x00,
+    0x00, 0x23,  // type NAPTR
+    0x00, 0x01,  // class IN
+    // Answer 1
+    0x07, 'e', 'x', 'a', 'm', 'p', 'l', 'e',
+    0x03, 'c', 'o', 'm',
+    0x00,
+    0x00, 0x23,  // RR type
+    0x00, 0x01,  // class IN
+    0x01, 0x02, 0x03, 0x04, // TTL
+    0x00, 0x01,  // rdata length
+    0x00,  // Too short: expect 2 x int16 and 3 x name (min 1 byte each)
+  };
+  struct ares_naptr_reply* naptr = nullptr;
+  EXPECT_EQ(ARES_EBADRESP, ares_parse_naptr_reply(data.data(), data.size(), &naptr));
+}
+
+TEST_F(LibraryTest, ParseNaptrReplyAllocFail) {
+  DNSPacket pkt;
+  pkt.set_qid(0x1234).set_response().set_aa()
+    .add_question(new DNSQuestion("example.com", T_NAPTR))
+    .add_answer(new DNSNaptrRR("example.com", 100,
+                               10, 20, "SP", "service", "regexp", "replace"))
+    .add_answer(new DNSNaptrRR("example.com", 0x0010,
+                               11, 21, "SP", "service2", "regexp2", "replace2"));
+  std::vector<byte> data = pkt.data();
+  struct ares_naptr_reply* naptr = nullptr;
+
+  for (int ii = 1; ii <= 13; ii++) {
+    ClearFails();
+    SetAllocFail(ii);
+    EXPECT_EQ(ARES_ENOMEM, ares_parse_naptr_reply(data.data(), data.size(), &naptr));
+  }
+}
+
+}  // namespace test
+}  // namespace ares