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// C++ Source Code File Name: client.cpp
// C++ Compiler Used: MSVC40, HP CPP 10.24, egcs-2.90.29 
// Produced By: Doug Gaer   
// File Creation Date: 09/20/1999
// Date Last Modified: 06/21/2000
// Copyright (c) 2000 Douglas M. Gaer
// ----------------------------------------------------------- // 
// ------------- Program Description and Details ------------- // 
// ----------------------------------------------------------- // 
/*
The VBS C++ classes are copyright (c) 2000, by Douglas M. Gaer.
All those who put this code or its derivatives in a commercial
product MUST mention this copyright in their documentation for
users of the products in which this code or its derivative
classes are used. Otherwise, you have the freedom to redistribute
verbatim copies of this source code, adapt it to your specific
needs, or improve the code and release your improvements to the
public provided that the modified files carry prominent notices
stating that you changed the files and the date of any change.

THIS SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND.
THE ENTIRE RISK OF THE QUALITY AND PERFORMANCE OF THIS SOFTWARE
IS WITH YOU. SHOULD ANY ELEMENT OF THIS SOFTWARE PROVE DEFECTIVE,
YOU WILL ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR, OR
CORRECTION.

Demo of the vbSocket WinSock functions. This test program is used
to initialize and release various winsock versions and display the
contents of the WSAData structure:

struct WSAData {  
    WORD            wVersion; 
    WORD            wHighVersion; 
    char            szDescription[WSADESCRIPTION_LEN+1]; 
    char            szSystemStatus[WSASYSSTATUS_LEN+1]; 
    unsigned short  iMaxSockets; 
    unsigned short  iMaxUdpDg; 
    char FAR *      lpVendorInfo; // Vendor-specific data structure
}; 

The vbSocket class can be use to automatically or manually
initialize the winsock DLL prior to the use of the Windows 
networking subsystem. Automatic winsock initialization will 
default to winsock version set in the vbSocket constructor.
*/
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#include <iostream.h>
#include "vbsocket.h"
#include "wserror.h"

void PausePrg()
{
  cout << endl;
  cout << "Press Enter to continue..." << endl;
  cin.get();
}

void PrintWSAInfo(vbSocket *socket)
{
  cout << "WinSock Version Requested: " 
       << (int)LOBYTE(socket->socket_data.wVersion) 
       << "." << (int)HIBYTE(socket->socket_data.wVersion) << endl;
  cout << "Current WinSock Version: " 
       << (int)LOBYTE(socket->socket_data.wHighVersion)
       << "." << (int)HIBYTE(socket->socket_data.wHighVersion) << endl;
  cout << "Description: " << socket->socket_data.szDescription << endl;
  cout << "System Status: " << socket->socket_data.szSystemStatus << endl;
  cout << "Max number of sockets: " << socket->socket_data.iMaxSockets 
       << endl;
  cout << "MAX UDP datagram size: " << socket->socket_data.iMaxUdpDg
       << endl;
}

void TestWSAVersion(vbSocket *socket, vbsSocketLibraryVersion ver)
{
  socket->socket_version = ver;
  if(socket->InitSocketLibrary() == 0) {
    PrintWSAInfo(socket);
    cout << endl;
    cout << "Simulating a WinSock error and printing the extended error info"
	 << endl;
    WinSockSetException(WSAEINTR);
    cout << WinSockExceptionMessage() << endl;
    if(socket->ReleaseSocketLibrary() != 0) {
      cout << socket->SocketExceptionMessage() << endl; 
    }   
  }
  else {
    cout << socket->SocketExceptionMessage() << endl; 
  } 
}

int main()
{
  vbsSocketLibraryVersion wsa_ver10 = vbSOCKET_WSAVER_ONEZERO;
  vbsSocketLibraryVersion wsa_ver11 = vbSOCKET_WSAVER_ONEONE;
  vbsSocketLibraryVersion wsa_ver20 = vbSOCKET_WSAVER_TWOZERO;
  vbsSocketLibraryVersion wsa_ver22 = vbSOCKET_WSAVER_TWOTWO;

  vbSocket socket;

  cout << "Testing winsock version 1.0" << endl;
  TestWSAVersion(&socket, wsa_ver10);
  PausePrg();

  cout << "Testing winsock version 1.1" << endl;
  TestWSAVersion(&socket, wsa_ver11);
  PausePrg();

  cout << "Testing winsock version 2.0" << endl;
  TestWSAVersion(&socket, wsa_ver20);
  PausePrg();

  cout << "Testing winsock version 2.2" << endl;
  TestWSAVersion(&socket, wsa_ver22);

  cout << endl;
  cout << "Exiting..." << endl;
  return 0;
}
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