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libcares/test/ares-test.h  view on Meta::CPAN

// Structure that describes the result of an ares_host_callback invocation.
struct HostResult {
  // Whether the callback has been invoked.
  bool done_;
  // Explicitly provided result information.
  int status_;
  int timeouts_;
  // Contents of the hostent structure, if provided.
  HostEnt host_;
};
std::ostream& operator<<(std::ostream& os, const HostResult& result);

// Structure that describes the result of an ares_callback invocation.
struct SearchResult {
  // Whether the callback has been invoked.
  bool done_;
  // Explicitly provided result information.
  int status_;
  int timeouts_;
  std::vector<byte> data_;
};
std::ostream& operator<<(std::ostream& os, const SearchResult& result);

// Structure that describes the result of an ares_nameinfo_callback invocation.
struct NameInfoResult {
  // Whether the callback has been invoked.
  bool done_;
  // Explicitly provided result information.
  int status_;
  int timeouts_;
  std::string node_;
  std::string service_;
};
std::ostream& operator<<(std::ostream& os, const NameInfoResult& result);

struct AddrInfoDeleter {
  void operator() (ares_addrinfo *ptr) {
    if (ptr) ares_freeaddrinfo(ptr);
  }
};

// C++ wrapper for struct ares_addrinfo.
using AddrInfo = std::unique_ptr<ares_addrinfo, AddrInfoDeleter>;

std::ostream& operator<<(std::ostream& os, const AddrInfo& result);

// Structure that describes the result of an ares_addrinfo_callback invocation.
struct AddrInfoResult {
  AddrInfoResult() : done_(false), status_(-1), timeouts_(0) {}
  // Whether the callback has been invoked.
  bool done_;
  // Explicitly provided result information.
  int status_;
  int timeouts_;
  // Contents of the ares_addrinfo structure, if provided.
  AddrInfo ai_;
};
std::ostream& operator<<(std::ostream& os, const AddrInfoResult& result);

// Standard implementation of ares callbacks that fill out the corresponding
// structures.
void HostCallback(void *data, int status, int timeouts,
                  struct hostent *hostent);
void SearchCallback(void *data, int status, int timeouts,
                    unsigned char *abuf, int alen);
void NameInfoCallback(void *data, int status, int timeouts,
                      char *node, char *service);
void AddrInfoCallback(void *data, int status, int timeouts, 
                      struct ares_addrinfo *res);

// Matchers for AddrInfo
MATCHER_P(IncludesNumAddresses, n, "") {
  if(!arg)
    return false;
  int cnt = 0;
  for (const ares_addrinfo* ai = arg.get(); ai != NULL; ai = ai->ai_next)
    cnt++;
  return n == cnt;
}

MATCHER_P(IncludesV4Address, address, "") {
  if(!arg)
    return false;
  in_addr addressnum = {};
  if (!ares_inet_pton(AF_INET, address, &addressnum))
    return false; // wrong number format?
  for (const ares_addrinfo* ai = arg.get(); ai != NULL; ai = ai->ai_next) {
    if (ai->ai_family != AF_INET)
      continue;
    if (reinterpret_cast<sockaddr_in*>(ai->ai_addr)->sin_addr.s_addr ==
        addressnum.s_addr)
      return true; // found
  }
  return false;
}

MATCHER_P(IncludesV6Address, address, "") {
  if(!arg)
    return false;
  in6_addr addressnum = {};
  if (!ares_inet_pton(AF_INET6, address, &addressnum)) {
    return false; // wrong number format?
  }
  for (const ares_addrinfo* ai = arg.get(); ai != NULL; ai = ai->ai_next) {
    if (ai->ai_family != AF_INET6)
      continue;
    if (!memcmp(
        reinterpret_cast<sockaddr_in6*>(ai->ai_addr)->sin6_addr.s6_addr,
        addressnum.s6_addr, sizeof(addressnum.s6_addr)))
      return true; // found
  }
  return false;
}

// Retrieve the name servers used by a channel.
std::vector<std::string> GetNameServers(ares_channel channel);

// RAII class to temporarily create a directory of a given name.
class TransientDir {
 public: