libstdc++-v3/testsuite/experimental/net/internet/resolver/ops/lookup.cc

   1 // Copyright (C) 2015-2024 Free Software Foundation, Inc.
   2 //
   3 // This file is part of the GNU ISO C++ Library.  This library is free
   4 // software; you can redistribute it and/or modify it under the
   5 // terms of the GNU General Public License as published by the
   6 // Free Software Foundation; either version 3, or (at your option)
   7 // any later version.
   8
   9 // This library is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13
  14 // You should have received a copy of the GNU General Public License along
  15 // with this library; see the file COPYING3.  If not see
  16 // <http://www.gnu.org/licenses/>.
  17
  18 // { dg-do run { target c++14 } }
  19 // { dg-require-effective-target net_ts_ip }
  20 // { dg-add-options net_ts }
  21 // { dg-xfail-run-if "io_context requires a working pipe" { *-*-rtems* } }
  22
  23 #include <experimental/internet>
  24 #include <testsuite_hooks.h>
  25
  26 using namespace std::experimental::net;
  27
  28 void
  29 test01()
  30 {
  31   std::error_code ec;
  32   io_context ctx;
  33   ip::tcp::resolver resolv(ctx);
  34   auto hostname = "localhost", service = "http";
  35   auto addrs = resolv.resolve(hostname, service, ec);
  36   if (ec == ip::resolver_errc::service_not_found)
  37   {
  38     // Solaris doesn't have http in /etc/services, try some others.
  39     for (auto serv : {"ftp", "telnet", "smtp"})
  40     {
  41       addrs = resolv.resolve(hostname, serv, ec);
  42       if (!ec)
  43       {
  44         service = serv;
  45         break;
  46       }
  47     }
  48   }
  49   VERIFY( !ec );
  50   VERIFY( addrs.size() > 0 );
  51   VERIFY( addrs.begin() != addrs.end() );
  52   VERIFY( ! addrs.empty() );
  53
  54   auto addrs2 = resolv.resolve(hostname, service);
  55   VERIFY( addrs == addrs2 );
  56 }
  57
  58 void
  59 test02()
  60 {
  61   std::error_code ec;
  62   io_context ctx;
  63   ip::tcp::resolver resolv(ctx);
  64   auto flags = ip::resolver_base::numeric_host;
  65 #ifdef AI_NUMERICSERV
  66   flags |= ip::tcp::resolver::numeric_service;
  67 #endif
  68   auto addrs = resolv.resolve("127.0.0.1", "42", flags, ec);
  69   VERIFY( !ec );
  70   VERIFY( addrs.size() > 0 );
  71   VERIFY( addrs.begin() != addrs.end() );
  72
  73   auto addrs2 = resolv.resolve("127.0.0.1", "42", flags);
  74   VERIFY( addrs == addrs2 );
  75
  76   addrs = resolv.resolve("localhost", "42", flags, ec);
  77   VERIFY( ec );
  78   VERIFY( addrs.empty() );
  79   addrs = resolv.resolve("127.0.0.1", "nameserver", flags, ec);
  80   VERIFY( ec );
  81   VERIFY( addrs.empty() );
  82
  83 #if __cpp_exceptions
  84   bool caught = false;
  85   try {
  86     resolv.resolve("localhost", "42", flags);
  87   } catch (const std::system_error& e) {
  88     caught = true;
  89     VERIFY( e.code() == ec );
  90   }
  91   VERIFY( caught );
  92 #endif
  93 }
  94
  95 void
  96 test03()
  97 {
  98   std::error_code ec;
  99   io_context ctx;
 100   ip::tcp::resolver resolv(ctx);
 101   auto addrs = resolv.resolve("test.invalid.", "http", ec);
 102   VERIFY( ec );
 103   VERIFY( addrs.size() == 0 );
 104   VERIFY( addrs.begin() == addrs.end() );
 105   VERIFY( addrs.empty() );
 106 #if __cpp_exceptions
 107   bool caught = false;
 108   try {
 109     resolv.resolve("test.invalid.", "http");
 110   } catch (const std::system_error& e) {
 111     caught = true;
 112     VERIFY( e.code() == ec );
 113   }
 114   VERIFY( caught );
 115 #endif
 116 }
 117
 118 int
 119 main()
 120 {
 121   test01();
 122   test02();
 123   test03();
 124 }