HostInfoExample

    // ------------------------------- //
    // -------- Start of File -------- //
    // ------------------------------- //
    // ----------------------------------------------------------- //
    // C++ Source Code File Name: testprog.cpp
    // C++ Compiler Used: MSVC, BCC32, GCC, HPUX aCC, SOLARIS CC
    // Produced By: DataReel Software Development Team
    // File Creation Date: 09/20/1999
    // Date Last Modified: 06/17/2016
    // Copyright (c) 2001-2016 DataReel Software Development
    // ----------------------------------------------------------- //
    // ------------- Program Description and Details ------------- //
    // ----------------------------------------------------------- //
    /*
    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
    USA

    Test program used to get host name information.
    */
    // ----------------------------------------------------------- //
    #include "gxdlcode.h"

    #if defined (__USE_ANSI_CPP__) // Use the ANSI Standard C++ library
    #include <iostream>
    using namespace std; // Use unqualified names for Standard C++ library
    #else // Use the old iostream library by default
    #include <iostream.h>
    #endif // __USE_ANSI_CPP__

    #include "gxsocket.h"

    #ifdef __MSVC_DEBUG__
    #include "leaktest.h"
    #endif

    int main(int argc, char **argv)
    {
    #ifdef __MSVC_DEBUG__
      InitLeakTest();
    #endif

      // Check the command line arguments
      if(argc != 2) {
        cout << "\n";
        cout << "Usage: " << argv[0] << " hostname" << "\n";
        return 1;
      }

      char *hostname = argv[1];

      gxSocket sock_lib;
      if(sock_lib.InitSocketLibrary() != 0) {
        cout << sock_lib.SocketExceptionMessage() << "\n";
        return 1;
      }

      gxsInternetAddress *ialist;
      gxsHostNameInfo *hostnm = sock_lib.GetHostInformation(hostname);

      if(!hostnm) {
        cout << "Socket exception: Could not resolve hostname" << "\n";
        return 1;
      }

      cout << "\n";
      cout << "Hostname: " << hostnm->h_name << "\n";

      int i;
      for(i = 0; ; i++) {
        char *alias = hostnm->h_aliases[i];
        if(alias == 0) break;
        cout << "Host Alias: " << alias << "\n";
      }

      for(i = 0; ; i++) {
        ialist = (gxsInternetAddress *)hostnm->h_addr_list[i];
        if(ialist == 0) break;
        cout << "Host IP Address: " << inet_ntoa(*ialist) << "\n";
      }

      // Free the memory allocated for the gxsHostNameInfo data structure
      delete hostnm;

      return 0;
    }
    // ----------------------------------------------------------- //
    // ------------------------------- //
    // --------- End of File --------- //
    // ------------------------------- //