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test: More tests for PTR parsing

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pull/34/head
David Drysdale 9 years ago
parent a2c5b1d378
commit f939efe7df
1 changed files with 39 additions and 2 deletions
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  1. 41
      test/ares-test-parse-ptr.cc

41
test/ares-test-parse-ptr.cc
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@ -25,6 +25,25 @@ TEST_F(LibraryTest, ParsePtrReplyOK) {
ares_free_hostent(host);
}
TEST_F(LibraryTest, ParsePtrReplyCname) {
byte addrv4[4] = {0x10, 0x20, 0x30, 0x40};
DNSPacket pkt;
pkt.set_qid(0x1234).set_response().set_aa()
.add_question(new DNSQuestion("64.48.32.16.in-addr.arpa", ns_t_ptr))
.add_answer(new DNSCnameRR("64.48.32.16.in-addr.arpa", 50, "64.48.32.8.in-addr.arpa"))
.add_answer(new DNSPtrRR("64.48.32.8.in-addr.arpa", 100, "other.com"));
std::vector<byte> data = pkt.data();
struct hostent *host = nullptr;
EXPECT_EQ(ARES_SUCCESS, ares_parse_ptr_reply(data.data(), data.size(),
addrv4, sizeof(addrv4), AF_INET, &host));
ASSERT_NE(nullptr, host);
std::stringstream ss;
ss << HostEnt(host);
EXPECT_EQ("{'other.com' aliases=[other.com] addrs=[16.32.48.64]}", ss.str());
ares_free_hostent(host);
}
TEST_F(LibraryTest, ParseManyPtrReply) {
byte addrv4[4] = {0x10, 0x20, 0x30, 0x40};
DNSPacket pkt;
@ -133,6 +152,15 @@ TEST_F(LibraryTest, ParsePtrReplyErrors) {
addrv4, sizeof(addrv4), AF_INET, &host));
EXPECT_EQ(nullptr, host);
}
// Truncated packets with CNAME.
pkt.add_answer(new DNSCnameRR("64.48.32.16.in-addr.arpa", 50, "64.48.32.8.in-addr.arpa"));
data = pkt.data();
for (size_t len = 1; len < data.size(); len++) {
EXPECT_EQ(ARES_EBADRESP, ares_parse_ptr_reply(data.data(), len,
addrv4, sizeof(addrv4), AF_INET, &host));
EXPECT_EQ(nullptr, host);
}
}
TEST_F(LibraryTest, ParsePtrReplyAllocFail) {
@ -140,11 +168,20 @@ TEST_F(LibraryTest, ParsePtrReplyAllocFail) {
DNSPacket pkt;
pkt.set_qid(0x1234).set_response().set_aa()
.add_question(new DNSQuestion("64.48.32.16.in-addr.arpa", ns_t_ptr))
.add_answer(new DNSPtrRR("64.48.32.16.in-addr.arpa", 100, "other.com"));
.add_answer(new DNSPtrRR("64.48.32.16.in-addr.arpa", 100, "main.com"))
.add_answer(new DNSPtrRR("64.48.32.16.in-addr.arpa", 100, "other1.com"))
.add_answer(new DNSPtrRR("64.48.32.16.in-addr.arpa", 100, "other2.com"))
.add_answer(new DNSPtrRR("64.48.32.16.in-addr.arpa", 100, "other3.com"))
.add_answer(new DNSPtrRR("64.48.32.16.in-addr.arpa", 100, "other4.com"))
.add_answer(new DNSPtrRR("64.48.32.16.in-addr.arpa", 100, "other5.com"))
.add_answer(new DNSPtrRR("64.48.32.16.in-addr.arpa", 100, "other6.com"))
.add_answer(new DNSPtrRR("64.48.32.16.in-addr.arpa", 100, "other7.com"))
.add_answer(new DNSPtrRR("64.48.32.16.in-addr.arpa", 100, "other8.com"))
.add_answer(new DNSPtrRR("64.48.32.16.in-addr.arpa", 100, "other9.com"));
std::vector<byte> data = pkt.data();
struct hostent *host = nullptr;
for (int ii = 1; ii <= 9; ii++) {
for (int ii = 1; ii <= 63; ii++) {
ClearFails();
SetAllocFail(ii);
EXPECT_EQ(ARES_ENOMEM, ares_parse_ptr_reply(data.data(), data.size(),

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