Source code of Windows XP (NT5)
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327 lines
8.3 KiB

/****************************************************************************
Copyright (c) Microsoft Corporation 1998
All rights reserved
***************************************************************************/
#include "pch.h"
DEFINE_MODULE("RIPREP")
#define LOG_OUTPUT_BUFFER_SIZE 256
//
// CreateDirectoryPath( )
//
// Creates the directory tree.
//
HRESULT
CreateDirectoryPath(
LPWSTR DirectoryPath )
{
PWCHAR p;
BOOL f;
DWORD attributes;
HRESULT hr = S_OK;
//
// Find the \ that indicates the root directory. There should be at least
// one \, but if there isn't, we just fall through.
//
// skip \\server\reminst\ part
p = wcschr( DirectoryPath, L'\\' );
Assert(p);
p = wcschr( p + 1, L'\\' );
Assert(p);
p = wcschr( p + 1, L'\\' );
Assert(p);
p = wcschr( p + 1, L'\\' );
Assert(p);
p = wcschr( p + 1, L'\\' );
if ( p != NULL ) {
//
// Find the \ that indicates the end of the first level directory. It's
// probable that there won't be another \, in which case we just fall
// through to creating the entire path.
//
p = wcschr( p + 1, L'\\' );
while ( p != NULL ) {
//
// Terminate the directory path at the current level.
//
*p = 0;
//
// Create a directory at the current level.
//
attributes = GetFileAttributes( DirectoryPath );
if ( 0xFFFFffff == attributes ) {
DebugMsg( "Creating %s\n", DirectoryPath );
f = CreateDirectory( DirectoryPath, NULL );
if ( !f ) {
hr = THR( HRESULT_FROM_WIN32( GetLastError( ) ) );
goto Error;
}
} else if ( (attributes & FILE_ATTRIBUTE_DIRECTORY) == 0 ) {
hr = THR(E_FAIL);
goto Error;
}
//
// Restore the \ and find the next one.
//
*p = L'\\';
p = wcschr( p + 1, L'\\' );
}
}
//
// Create the target directory.
//
attributes = GetFileAttributes( DirectoryPath );
if ( 0xFFFFffff == attributes ) {
f = CreateDirectory( DirectoryPath, NULL );
if ( !f ) {
hr = THR( HRESULT_FROM_WIN32( GetLastError( ) ) );
}
}
Error:
return hr;
}
//
// LogOpen( )
//
// This function:
// - initializes the log critical section
// - enters the log critical section assuring only one thread is
// writing to the log at a time
// - creates the directory tree to the log file (if needed)
// - initializes the log file by:
// - creating a new log file if one doesn't exist.
// - opens an existing log file (for append)
// - appends a time/date stamp that the log was (re)openned.
//
// Use LogClose() to exit the log critical section.
//
// If there is a failure inside this function, the log critical
// section will be released before returning.
//
// Returns: S_OK - log critical section held and log open successfully
// Otherwize HRESULT error code.
//
HRESULT
LogOpen( )
{
TCHAR szFilePath[ MAX_PATH ];
CHAR szBuffer[ LOG_OUTPUT_BUFFER_SIZE ];
DWORD dwWritten;
HANDLE hTemp;
HRESULT hr;
SYSTEMTIME SystemTime;
BOOL CloseLog = FALSE;
if ( !g_pLogCritSect ) {
PCRITICAL_SECTION pNewCritSect =
(PCRITICAL_SECTION) LocalAlloc( LPTR, sizeof(CRITICAL_SECTION) );
if ( !pNewCritSect ) {
DebugMsg( "Out of Memory. Logging disabled.\n " );
hr = E_OUTOFMEMORY;
goto Cleanup;
}
InitializeCriticalSection( pNewCritSect );
// Make sure we only have one log critical section
InterlockedCompareExchangePointer( (PVOID *)&g_pLogCritSect, pNewCritSect, 0 );
if ( g_pLogCritSect != pNewCritSect ) {
DebugMsg( "Another thread already created the CS. Deleting this one.\n ");
DeleteCriticalSection( pNewCritSect );
LocalFree( pNewCritSect );
}
}
Assert( g_pLogCritSect );
EnterCriticalSection( g_pLogCritSect );
// Make sure the log file is open
if ( g_hLogFile == INVALID_HANDLE_VALUE ) {
if (!*g_ServerName) {
wsprintf(
szFilePath,
L"%s\\%s",
g_WinntDirectory,
L"riprep.log");
CloseLog = TRUE;
} else {
// Place
wsprintf( szFilePath,
TEXT("\\\\%s\\REMINST\\Setup\\%s\\%s\\%s\\%s"),
g_ServerName,
g_Language,
REMOTE_INSTALL_IMAGE_DIR_W,
g_MirrorDir,
g_Architecture );
// Create the directory tree
DebugMsg( "Creating log at %s\n", szFilePath );
hr = CreateDirectoryPath( szFilePath );
if (FAILED( hr )) goto Error;
wcscat( szFilePath, L"\\riprep.log" );
}
g_hLogFile = CreateFile( szFilePath,
GENERIC_WRITE | GENERIC_READ,
FILE_SHARE_READ,
NULL,
OPEN_ALWAYS,
NULL,
NULL );
if ( g_hLogFile == INVALID_HANDLE_VALUE ) {
hr = THR( HRESULT_FROM_WIN32( GetLastError( ) ) );
goto Error;
}
// Seek to the end
SetFilePointer( g_hLogFile, 0, NULL, FILE_END );
g_dwLogFileStartLow = GetFileSize( g_hLogFile, &g_dwLogFileStartHigh );
// Write the time/date the log was (re)openned.
GetLocalTime( &SystemTime );
wsprintfA( szBuffer,
"*\r\n* %02u/%02u/%04u %02u:%02u:%02u\r\n*\r\n",
SystemTime.wMonth,
SystemTime.wDay,
SystemTime.wYear,
SystemTime.wHour,
SystemTime.wMinute,
SystemTime.wSecond );
if ( !WriteFile( g_hLogFile, szBuffer, lstrlenA(szBuffer), &dwWritten, NULL ) ) {
hr = THR( HRESULT_FROM_WIN32( GetLastError( ) ) );
goto Error;
}
}
hr = S_OK;
Cleanup:
if (CloseLog) {
CloseHandle( g_hLogFile );
g_hLogFile = INVALID_HANDLE_VALUE;
}
return hr;
Error:
DebugMsg( "LogOpen: Failed hr = 0x%08x\n", hr );
if ( g_hLogFile != INVALID_HANDLE_VALUE ) {
CloseHandle( g_hLogFile );
g_hLogFile = INVALID_HANDLE_VALUE;
}
LeaveCriticalSection( g_pLogCritSect );
goto Cleanup;
}
//
// LogClose( )
//
// This actually just leaves the log critical section.
//
HRESULT
LogClose( )
{
Assert( g_pLogCritSect );
LeaveCriticalSection( g_pLogCritSect );
return S_OK;
}
//
// LogMsg()
//
void
LogMsg(
LPCSTR pszFormat,
... )
{
va_list valist;
CHAR szBuf[ LOG_OUTPUT_BUFFER_SIZE ];
DWORD dwWritten;
#ifdef UNICODE
WCHAR szFormat[ LOG_OUTPUT_BUFFER_SIZE ];
WCHAR szTmpBuf[ LOG_OUTPUT_BUFFER_SIZE ];
mbstowcs( szFormat, pszFormat, lstrlenA( pszFormat ) + 1 );
va_start( valist, pszFormat );
wvsprintf( szTmpBuf, szFormat, valist);
va_end( valist );
wcstombs( szBuf, szTmpBuf, wcslen( szTmpBuf ) + 1 );
#else
va_start( valist, pszFormat );
wvsprintf( szBuf, pszFormat, valist);
va_end( valist );
#endif // UNICODE
if ( LogOpen( ) ) {
return;
}
WriteFile( g_hLogFile, szBuf, lstrlenA(szBuf), &dwWritten, NULL );
LogClose( );
}
//
// LogMsg()
//
void
LogMsg(
LPCWSTR pszFormat,
... )
{
va_list valist;
CHAR szBuf[ LOG_OUTPUT_BUFFER_SIZE ];
DWORD dwWritten;
#ifdef UNICODE
WCHAR szTmpBuf[ LOG_OUTPUT_BUFFER_SIZE ];
va_start( valist, pszFormat );
wvsprintf( szTmpBuf, pszFormat, valist);
va_end( valist );
wcstombs( szBuf, szTmpBuf, wcslen( szTmpBuf ) + 1 );
#else
CHAR szFormat[ LOG_OUTPUT_BUFFER_SIZE ];
wcstombs( szFormat, pszFormat, wcslen( pszFormat ) + 1 );
va_start( valist, pszFormat );
wvsprintf( szBuf, szFormat, valist);
va_end( valist );
#endif // UNICODE
if ( LogOpen( ) ) {
return;
}
WriteFile( g_hLogFile, szBuf, lstrlenA(szBuf), &dwWritten, NULL );
LogClose( );
}