//-------------------------------------------------------------------
// Matt Pietrek
// MSDN Magazine, 2003
// Program: ProcessesAndThreads
// Purpose: A demonstration of the Windows XP/Windows Server 2003 Process/
// Thread APIs
//-------------------------------------------------------------------
#include "stdafx.h"

// comment out to get just the XP APIs
#define W2K3SERVER  1

int main(int argc, char* argv[])
{
    DWORD dwThreadID = GetCurrentThreadId();
    DWORD dwProcessID = GetCurrentProcessId();
    printf( "ProcessId: %X  ThreadId: %X\n", dwProcessID, dwThreadID );

    HANDLE hProcess = OpenProcess(PROCESS_ALL_ACCESS, FALSE, dwProcessID );
    if ( !hProcess )
    {
        printf( "unable to open process\n" );
        return 0;
    }

    // Show OpenThread()
    HANDLE hThread = OpenThread( THREAD_ALL_ACCESS, FALSE, dwThreadID );
    printf( "hProcess: %IX  hThread: %IX\n", hProcess, hThread );

    // Show GetProcessHandleCount()
    DWORD dwHandleCount;
    GetProcessHandleCount( hProcess, &dwHandleCount );
    printf( "Handle Count: %u\n", dwHandleCount );

    // Show IsProcessInJob()
    BOOL bIsInJob;
    IsProcessInJob( hProcess, NULL, &bIsInJob );
    printf( "IsProcessInJob: %s\n", bIsInJob ? "true" : "false" );

    // Show GetProcessId()
    printf( "Process ID from hProcess: %X\n", GetProcessId( hProcess ) );

    // Show IsWow64Process
    BOOL bIsWow64Process;
    IsWow64Process( hProcess, &bIsWow64Process );
    printf( "IsWow64Process: %s\n", bIsWow64Process ? "true" : "false" );

    BOOL bIOIsPending;
    GetThreadIOPendingFlag( hThread, &bIOIsPending );
    printf( "IoIsPending: %s\n", bIOIsPending ? "true" : "false" );

#ifdef W2K3SERVER
    // Show GetProcessWorkingSetSizeEx()
    DWORD wsFlags;
    SIZE_T wsSizeMin, wsSizeMax;
    GetProcessWorkingSetSizeEx( hProcess, &wsSizeMin, &wsSizeMax, 
                                &wsFlags );
    printf( "Working Set: min:%IX  max:%IX  flags:%X\n",
            wsSizeMin, wsSizeMax, wsFlags );

    // Show GetProcessIdOfThread()
    DWORD dwProcessIdFromThread = GetProcessIdOfThread( hThread );
    printf("Process ID obtained from thread ID: %X\n", 
           dwProcessIdFromThread);

    // Show GetThreadId();
    printf("Thread ID obtained from thread handle: 
           %X\n",GetThreadId(hThread));

#endif

    return 0;
}

//-------------------------------------------------------------------
// Matt Pietrek
// MSDN Magazine, 2003
// Program: VEHDemo
// Purpose: A demonstration of Vectored Exception Handling
//-------------------------------------------------------------------

#define WIN32_LEAN_AND_MEAN
#define _WIN32_WINNT 0x0501
#include <stdio.h>
#include <tchar.h>
#include <windows.h>

LONG
WINAPI VectoredExceptionHandler(PEXCEPTION_POINTERS ExceptionInfo)
{
    // Stupid handler that does nothing except print out the faulting EIP
    printf( "In VectoredExceptionHandler, EIP =%p\n",
            (PVOID)(DWORD_PTR)ExceptionInfo->ContextRecord->Eip );

    // Don't handle the exception here.  Let normal processing continue
    return EXCEPTION_CONTINUE_SEARCH;
}

LONG
WINAPI SecondVectoredExceptionHandler(PEXCEPTION_POINTERS ExceptionInfo)
{
    // If the faulting EIP points to a HLT instruction, just skip past
    // it, to show us "Handling" an exception
    if ( *(PBYTE)ExceptionInfo->ContextRecord->Eip == 0xF4 )
    {
        printf( "In SecondVectoredExceptionHandler - handling it\n" );
        ExceptionInfo->ContextRecord->Eip++;
        return EXCEPTION_CONTINUE_EXECUTION;
    }
    else    // For everything else, we won't handle the exception here
    {
        printf("In SecondVectoredExceptionHandler - NOT handling it\n");
        return EXCEPTION_CONTINUE_SEARCH;
    }
}

int _tmain(int argc, _TCHAR* argv[])
{
    // Add a vectored exception handler.  In fact, add the same
    // handler 3 times, to prove that they handlers are stored
    // in a linked list.  This handler always returns "keep looking"
    AddVectoredExceptionHandler( 1, VectoredExceptionHandler );
    AddVectoredExceptionHandler( 1, VectoredExceptionHandler );
    AddVectoredExceptionHandler( 1, VectoredExceptionHandler );

    // And a second vectored handler that knows how to handle a HLT
    // caused exception, but nothing else
    AddVectoredExceptionHandler( 0, SecondVectoredExceptionHandler );

    __try
    {
        __asm   HLT         // Cause a privileged instruction fault
        *(int *)0 = 0;      // Access Violate by dereferencing NULL ptr
    }
    __except( EXCEPTION_EXECUTE_HANDLER )
    {   // This handler will catch the *(int *)0 = 0 fault
        printf( "Caught the exception in Function1\n" );
    }

    return 0;
}

In VectoredExceptionHandler, EIP =00411BBA
In VectoredExceptionHandler, EIP =00411BBA
In VectoredExceptionHandler, EIP =00411BBA
In SecondVectoredExceptionHandler - handling it
In VectoredExceptionHandler, EIP =00411BBB
In VectoredExceptionHandler, EIP =00411BBB
In VectoredExceptionHandler, EIP =00411BBB
In SecondVectoredExceptionHandler - NOT handling it
Caught the exception in Function1

//-------------------------------------------------------------------
// Matt Pietrek
// MSDN Magazine, 2003
// Program: FindFirstStream
// Purpose: A demonstration of the Windows XP/Windows Server 2003 File 
// Stream APIs
//-------------------------------------------------------------------
#include "stdafx.h"

int main(int argc, char * argv[])
{
    if ( argc != 2 )
        return 0;

    WIN32_FIND_STREAM_DATA streamData;

    wchar_t wszFileName[512];
    mbstowcs( wszFileName, argv[1], 0xFFFFFFFF );
    HANDLE h = FindFirstStreamW( wszFileName, FindStreamInfoStandard,
                                &streamData, 0 );
    if ( h == (HANDLE)ERROR_INVALID_HANDLE )
    {
        // printf( "unable to being stream enum for file %s\n", argv[1] );
        return 0;
    }
    while ( 1 )
    {
        if ( !FindNextStreamW( h, &streamData ) )
            break;
        printf( "%ls%ls\n", wszFileName, streamData.cStreamName );
    }

    // Do we need to close the stream handle???

    return 0;
}

//-------------------------------------------------------------------
// Matt Pietrek
// MSDN Magazine, 2003
// Program: SystemInfo
// Purpose: A demo of the Windows XP/Windows Server 2003 System Info APIs
//-------------------------------------------------------------------
#include "stdafx.h"

// Uncomment to get Windows Server 2003 APIs as well
// #define W2K3SERVER   1

int main(int argc, char * argv[])
{
    // Show GetSystemRegistryQuota();
    DWORD dwQuotaAllowed, dwQuotaUsed;
    GetSystemRegistryQuota( &dwQuotaAllowed, &dwQuotaUsed );
    printf( "Quota allowed: %uK, Quota used: %uK\n",
            dwQuotaAllowed/1024, dwQuotaUsed / 1024 );

    // Show GetSystemTimes()
    FILETIME IdleTime;
    FILETIME KernelTime;
    FILETIME UserTime;
    GetSystemTimes( &IdleTime, &KernelTime, &UserTime );

    const DWORD filetimeDivisor = 1000000000 / 100;

    printf( "IdleTime:   %I64u seconds\n",
        *(PDWORD64)&IdleTime / filetimeDivisor );

    printf( "KernelTime: %I64u seconds\n",
        *(PDWORD64)&KernelTime / filetimeDivisor );

    printf( "UserTime:   %I64u seconds\n",
        *(PDWORD64)&UserTime / filetimeDivisor );

    // Show GetNativeSystemInfo().  If you're running in a WOW session
    // (e.g., an X86 app running on IA64), it'll return the capabilities
    // of the actual OS, not the WOW info.  If not running in WOW, you'll
    // get the same info as GetSystemInfo
    SYSTEM_INFO sysInfo;
    GetNativeSystemInfo( &sysInfo );
    printf( "Native System Info - Processor type: %u  page size: %X\n",
            sysInfo.dwProcessorType, sysInfo.dwPageSize );

#ifdef W2K3SERVER
    printf( "Large Page Minimum size: %IX\n", GetLargePageMinimum() );
#endif
    return 0;
}

//-------------------------------------------------------------------
// Matt Pietrek
// MSDN Magazine, 2003
// Program: Credential
// Purpose: A demonstration of the Windows XP/ Windows Server 2003 
// Credential APIs
//-------------------------------------------------------------------
#include "stdafx.h"

int _tmain(int argc, _TCHAR* argv[])
{
    PCREDENTIAL * pCreds;
    DWORD cCreds;

    CredEnumerate( NULL, 0, &cCreds, &pCreds );

    for ( DWORD i = 0; i < cCreds; i++ )
    {
        PCREDENTIAL p = pCreds[i];
        printf( "Flags:%X  Type:%X  Target: %s  User: %s\n",
            p->Flags, p->Type, p->TargetName, p->UserName );
    }

    CredFree( pCreds );

    return 0;
}