net/base/address_list_unittest.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "net/base/address_list.h"
   6
   7 #include "base/strings/string_util.h"
   8 #include "base/sys_byteorder.h"
   9 #include "net/base/net_util.h"
  10 #include "net/base/sys_addrinfo.h"
  11 #include "testing/gtest/include/gtest/gtest.h"
  12
  13 namespace net {
  14 namespace {
  15
  16 const char kCanonicalHostname[] = "canonical.bar.com";
  17
  18 TEST(AddressListTest, Canonical) {
  19   // Create an addrinfo with a canonical name.
  20   struct sockaddr_in address;
  21   // The contents of address do not matter for this test,
  22   // so just zero-ing them out for consistency.
  23   memset(&address, 0x0, sizeof(address));
  24   // But we need to set the family.
  25   address.sin_family = AF_INET;
  26   struct addrinfo ai;
  27   memset(&ai, 0x0, sizeof(ai));
  28   ai.ai_family = AF_INET;
  29   ai.ai_socktype = SOCK_STREAM;
  30   ai.ai_addrlen = sizeof(address);
  31   ai.ai_addr = reinterpret_cast<sockaddr*>(&address);
  32   ai.ai_canonname = const_cast<char *>(kCanonicalHostname);
  33
  34   // Copy the addrinfo struct into an AddressList object and
  35   // make sure it seems correct.
  36   AddressList addrlist1 = AddressList::CreateFromAddrinfo(&ai);
  37   EXPECT_EQ("canonical.bar.com", addrlist1.canonical_name());
  38
  39   // Copy the AddressList to another one.
  40   AddressList addrlist2 = addrlist1;
  41   EXPECT_EQ("canonical.bar.com", addrlist2.canonical_name());
  42 }
  43
  44 TEST(AddressListTest, CreateFromAddrinfo) {
  45   // Create an 4-element addrinfo.
  46   const unsigned kNumElements = 4;
  47   SockaddrStorage storage[kNumElements];
  48   struct addrinfo ai[kNumElements];
  49   for (unsigned i = 0; i < kNumElements; ++i) {
  50     struct sockaddr_in* addr =
  51         reinterpret_cast<struct sockaddr_in*>(storage[i].addr);
  52     storage[i].addr_len = sizeof(struct sockaddr_in);
  53     // Populating the address with { i, i, i, i }.
  54     memset(&addr->sin_addr, i, kIPv4AddressSize);
  55     addr->sin_family = AF_INET;
  56     // Set port to i << 2;
  57     addr->sin_port = base::HostToNet16(static_cast<uint16>(i << 2));
  58     memset(&ai[i], 0x0, sizeof(ai[i]));
  59     ai[i].ai_family = addr->sin_family;
  60     ai[i].ai_socktype = SOCK_STREAM;
  61     ai[i].ai_addrlen = storage[i].addr_len;
  62     ai[i].ai_addr = storage[i].addr;
  63     if (i + 1 < kNumElements)
  64       ai[i].ai_next = &ai[i + 1];
  65   }
  66
  67   AddressList list = AddressList::CreateFromAddrinfo(&ai[0]);
  68
  69   ASSERT_EQ(kNumElements, list.size());
  70   for (size_t i = 0; i < list.size(); ++i) {
  71     EXPECT_EQ(ADDRESS_FAMILY_IPV4, list[i].GetFamily());
  72     // Only check the first byte of the address.
  73     EXPECT_EQ(i, list[i].address()[0]);
  74     EXPECT_EQ(static_cast<int>(i << 2), list[i].port());
  75   }
  76
  77   // Check if operator= works.
  78   AddressList copy;
  79   copy = list;
  80   ASSERT_EQ(kNumElements, copy.size());
  81
  82   // Check if copy is independent.
  83   copy[1] = IPEndPoint(copy[2].address(), 0xBEEF);
  84   // Original should be unchanged.
  85   EXPECT_EQ(1u, list[1].address()[0]);
  86   EXPECT_EQ(1 << 2, list[1].port());
  87 }
  88
  89 TEST(AddressListTest, CreateFromIPAddressList) {
  90   struct TestData {
  91     std::string ip_address;
  92     const char* in_addr;
  93     int ai_family;
  94     size_t ai_addrlen;
  95     size_t in_addr_offset;
  96     size_t in_addr_size;
  97   } tests[] = {
  98     { "127.0.0.1",
  99       "\x7f\x00\x00\x01",
 100       AF_INET,
 101       sizeof(struct sockaddr_in),
 102       offsetof(struct sockaddr_in, sin_addr),
 103       sizeof(struct in_addr),
 104     },
 105     { "2001:db8:0::42",
 106       "\x20\x01\x0d\xb8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x42",
 107       AF_INET6,
 108       sizeof(struct sockaddr_in6),
 109       offsetof(struct sockaddr_in6, sin6_addr),
 110       sizeof(struct in6_addr),
 111     },
 112     { "192.168.1.1",
 113       "\xc0\xa8\x01\x01",
 114       AF_INET,
 115       sizeof(struct sockaddr_in),
 116       offsetof(struct sockaddr_in, sin_addr),
 117       sizeof(struct in_addr),
 118     },
 119   };
 120   const std::string kCanonicalName = "canonical.example.com";
 121
 122   // Construct a list of ip addresses.
 123   IPAddressList ip_list;
 124   for (size_t i = 0; i < arraysize(tests); ++i) {
 125     IPAddressNumber ip_number;
 126     ASSERT_TRUE(ParseIPLiteralToNumber(tests[i].ip_address, &ip_number));
 127     ip_list.push_back(ip_number);
 128   }
 129
 130   AddressList test_list = AddressList::CreateFromIPAddressList(ip_list,
 131                                                                kCanonicalName);
 132   std::string canonical_name;
 133   EXPECT_EQ(kCanonicalName, test_list.canonical_name());
 134   EXPECT_EQ(arraysize(tests), test_list.size());
 135 }
 136
 137 }  // namespace
 138 }  // namespace net