482 lines
13 KiB
C
482 lines
13 KiB
C
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/*++
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Copyright (c) 1992 Microsoft Corporation
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Module Name:
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iml.c
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Abstract:
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This module contains routines for creating and accessing Installation
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Modification Log files (.IML)
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Author:
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Steve Wood (stevewo) 15-Jan-1996
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Revision History:
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--*/
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#include "instutil.h"
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#include "iml.h"
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PWSTR
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FormatImlPath(
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PWSTR DirectoryPath,
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PWSTR InstallationName
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)
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{
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PWSTR ImlPath;
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ULONG n;
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n = wcslen( DirectoryPath ) + wcslen( InstallationName ) + 8;
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ImlPath = HeapAlloc( GetProcessHeap(), 0, (n * sizeof( WCHAR )) );
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if (ImlPath != NULL) {
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_snwprintf( ImlPath, n, L"%s%s.IML", DirectoryPath, InstallationName );
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}
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return ImlPath;
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}
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PINSTALLATION_MODIFICATION_LOGFILE
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CreateIml(
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PWSTR ImlPath,
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BOOLEAN IncludeCreateFileContents
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)
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{
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HANDLE FileHandle;
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PINSTALLATION_MODIFICATION_LOGFILE pIml;
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pIml = NULL;
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FileHandle = CreateFile( ImlPath,
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GENERIC_READ | GENERIC_WRITE,
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FILE_SHARE_READ,
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NULL,
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OPEN_ALWAYS,
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0,
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NULL
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);
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if (FileHandle != INVALID_HANDLE_VALUE) {
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pIml = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof( *pIml ) );
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if (pIml != NULL) {
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pIml->Signature = IML_SIGNATURE;
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pIml->FileHandle = FileHandle;
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pIml->FileOffset = ROUND_UP( sizeof( *pIml ), 8 );
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if (IncludeCreateFileContents) {
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pIml->Flags = IML_FLAG_CONTAINS_NEWFILECONTENTS;
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}
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SetFilePointer( pIml->FileHandle, pIml->FileOffset, NULL, FILE_BEGIN );
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}
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}
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return pIml;
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}
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PINSTALLATION_MODIFICATION_LOGFILE
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LoadIml(
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PWSTR ImlPath
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)
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{
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HANDLE FileHandle, MappingHandle;
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PINSTALLATION_MODIFICATION_LOGFILE pIml;
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pIml = NULL;
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FileHandle = CreateFile( ImlPath,
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GENERIC_READ,
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FILE_SHARE_READ,
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NULL,
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OPEN_EXISTING,
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0,
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NULL
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);
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if (FileHandle != INVALID_HANDLE_VALUE) {
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MappingHandle = CreateFileMapping( FileHandle,
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NULL,
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PAGE_READONLY,
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0,
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0,
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NULL
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);
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CloseHandle( FileHandle );
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if (MappingHandle != NULL) {
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pIml = MapViewOfFile( MappingHandle,
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FILE_MAP_READ,
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0,
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0,
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0
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);
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CloseHandle( MappingHandle );
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if (pIml != NULL) {
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if (pIml->Signature != IML_SIGNATURE) {
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UnmapViewOfFile( pIml );
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pIml = NULL;
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SetLastError( ERROR_BAD_FORMAT );
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}
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}
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}
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}
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return pIml;
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}
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BOOLEAN
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CloseIml(
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PINSTALLATION_MODIFICATION_LOGFILE pIml
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)
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{
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HANDLE FileHandle;
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BOOLEAN Result;
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ULONG BytesWritten;
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if (pIml->FileHandle == NULL) {
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if (!UnmapViewOfFile( pIml )) {
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return FALSE;
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}
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else {
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Result = TRUE;
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}
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}
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else {
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FileHandle = pIml->FileHandle;
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pIml->FileHandle = NULL;
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if (!SetEndOfFile( FileHandle ) ||
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SetFilePointer( FileHandle, 0, NULL, FILE_BEGIN ) != 0 ||
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!WriteFile( FileHandle,
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pIml,
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sizeof( *pIml ),
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&BytesWritten,
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NULL
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) ||
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BytesWritten != sizeof( *pIml )
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) {
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Result = FALSE;
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}
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else {
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Result = TRUE;
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}
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CloseHandle( FileHandle );
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}
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return Result;
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}
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POFFSET
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ImlWrite(
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PINSTALLATION_MODIFICATION_LOGFILE pIml,
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PVOID p,
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ULONG Size
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)
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{
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POFFSET Result;
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ULONG BytesWritten;
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if (!WriteFile( pIml->FileHandle,
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p,
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Size,
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&BytesWritten,
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NULL
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) ||
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BytesWritten != Size
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) {
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return 0;
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}
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Result = pIml->FileOffset;
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pIml->FileOffset += ROUND_UP( Size, 8 );
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SetFilePointer( pIml->FileHandle,
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pIml->FileOffset,
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NULL,
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FILE_BEGIN
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);
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return Result;
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}
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POFFSET
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ImlWriteString(
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PINSTALLATION_MODIFICATION_LOGFILE pIml,
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PWSTR Name
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)
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{
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if (Name == NULL) {
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return 0;
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}
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else {
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return ImlWrite( pIml, Name, (wcslen( Name ) + 1) * sizeof( WCHAR ) );
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}
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}
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POFFSET
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ImlWriteFileContents(
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PINSTALLATION_MODIFICATION_LOGFILE pIml,
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PWSTR FileName
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)
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{
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HANDLE hFindFirst, hFile, hMapping;
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WIN32_FIND_DATA FindFileData;
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PVOID p;
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IML_FILE_RECORD_CONTENTS ImlFileContentsRecord;
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hFindFirst = FindFirstFile( FileName, &FindFileData );
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if (hFindFirst == INVALID_HANDLE_VALUE) {
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return 0;
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}
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FindClose( hFindFirst );
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ImlFileContentsRecord.LastWriteTime = FindFileData.ftLastWriteTime;
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ImlFileContentsRecord.FileAttributes = FindFileData.dwFileAttributes;
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if (!(ImlFileContentsRecord.FileAttributes & FILE_ATTRIBUTE_DIRECTORY)) {
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ImlFileContentsRecord.FileSize = FindFileData.nFileSizeLow;
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hFile = CreateFile( FileName,
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GENERIC_READ,
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FILE_SHARE_READ,
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NULL,
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OPEN_EXISTING,
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0,
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NULL
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);
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if (hFile == INVALID_HANDLE_VALUE) {
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printf( "*** CreateFile( '%ws' ) failed (%u)\n", FileName, GetLastError() );
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return 0;
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}
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if (ImlFileContentsRecord.FileSize != 0) {
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hMapping = CreateFileMapping( hFile,
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NULL,
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PAGE_READONLY,
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0,
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0,
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NULL
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);
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CloseHandle( hFile );
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hFile = NULL;
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if (hMapping == NULL) {
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printf( "*** CreateFileMapping( '%ws' ) failed (%u)\n", FileName, GetLastError() );
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return 0;
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}
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p = MapViewOfFile( hMapping,
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FILE_MAP_READ,
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0,
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0,
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0
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);
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CloseHandle( hMapping );
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if (p == NULL) {
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printf( "*** MapViewOfFile( '%ws' ) failed (%u)\n", FileName, GetLastError() );
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return 0;
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}
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}
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else {
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CloseHandle( hFile );
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p = NULL;
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}
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}
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else {
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ImlFileContentsRecord.FileSize = 0;
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p = NULL;
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}
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ImlFileContentsRecord.Contents = ImlWrite( pIml, p, ImlFileContentsRecord.FileSize );
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if (p != NULL) {
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UnmapViewOfFile( p );
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}
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return ImlWrite( pIml,
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&ImlFileContentsRecord,
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sizeof( ImlFileContentsRecord )
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);
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}
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BOOLEAN
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ImlAddFileRecord(
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PINSTALLATION_MODIFICATION_LOGFILE pIml,
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IML_FILE_ACTION Action,
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PWSTR Name,
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PWSTR BackupFileName,
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PFILETIME BackupLastWriteTime,
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DWORD BackupFileAttributes
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)
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{
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IML_FILE_RECORD ImlFileRecord;
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IML_FILE_RECORD_CONTENTS ImlFileContentsRecord;
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memset( &ImlFileRecord, 0, sizeof( ImlFileRecord ) );
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ImlFileRecord.Action = Action;
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ImlFileRecord.Name = ImlWriteString( pIml, Name );
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if (Action == CreateNewFile) {
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if ((pIml->Flags & IML_FLAG_CONTAINS_NEWFILECONTENTS) != 0) {
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ImlFileRecord.NewFile = ImlWriteFileContents( pIml, Name );
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}
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}
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else
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if (Action == ModifyOldFile ||
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Action == DeleteOldFile
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) {
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if (BackupFileName != NULL) {
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ImlFileRecord.OldFile = ImlWriteFileContents( pIml, BackupFileName );
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}
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if (Action == ModifyOldFile &&
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(pIml->Flags & IML_FLAG_CONTAINS_NEWFILECONTENTS) != 0
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) {
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ImlFileRecord.NewFile = ImlWriteFileContents( pIml, Name );
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}
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}
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else {
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ImlFileContentsRecord.LastWriteTime = *BackupLastWriteTime;
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ImlFileContentsRecord.FileAttributes = BackupFileAttributes;
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ImlFileContentsRecord.FileSize = 0;
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ImlFileContentsRecord.Contents = 0;
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ImlFileRecord.OldFile = ImlWrite( pIml,
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&ImlFileContentsRecord,
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sizeof( ImlFileContentsRecord )
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);
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}
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ImlFileRecord.Next = pIml->FileRecords;
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pIml->FileRecords = ImlWrite( pIml, &ImlFileRecord, sizeof( ImlFileRecord ) );
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pIml->NumberOfFileRecords += 1;
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return TRUE;
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}
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BOOLEAN
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ImlAddValueRecord(
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PINSTALLATION_MODIFICATION_LOGFILE pIml,
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IML_VALUE_ACTION Action,
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PWSTR Name,
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DWORD ValueType,
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ULONG ValueLength,
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PVOID ValueData,
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DWORD BackupValueType,
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ULONG BackupValueLength,
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PVOID BackupValueData,
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POFFSET *Values
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)
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{
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IML_VALUE_RECORD ImlValueRecord;
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IML_VALUE_RECORD_CONTENTS ImlValueContentsRecord;
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memset( &ImlValueRecord, 0, sizeof( ImlValueRecord ) );
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ImlValueRecord.Action = Action;
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ImlValueRecord.Name = ImlWriteString( pIml, Name );
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if (Action != DeleteOldValue) {
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ImlValueContentsRecord.Type = ValueType;
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ImlValueContentsRecord.Length = ValueLength;
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ImlValueContentsRecord.Data = ImlWrite( pIml, ValueData, ValueLength );
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ImlValueRecord.NewValue = ImlWrite( pIml,
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&ImlValueContentsRecord,
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sizeof( ImlValueContentsRecord )
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);
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}
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if (Action != CreateNewValue) {
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ImlValueContentsRecord.Type = BackupValueType;
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ImlValueContentsRecord.Length = BackupValueLength;
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ImlValueContentsRecord.Data = ImlWrite( pIml, BackupValueData, BackupValueLength );
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ImlValueRecord.OldValue = ImlWrite( pIml,
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&ImlValueContentsRecord,
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sizeof( ImlValueContentsRecord )
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);
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}
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ImlValueRecord.Next = *Values;
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*Values = ImlWrite( pIml, &ImlValueRecord, sizeof( ImlValueRecord ) );
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return TRUE;
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}
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BOOLEAN
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ImlAddKeyRecord(
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PINSTALLATION_MODIFICATION_LOGFILE pIml,
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IML_KEY_ACTION Action,
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|
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PWSTR Name,
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POFFSET Values
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)
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{
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IML_KEY_RECORD ImlKeyRecord;
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memset( &ImlKeyRecord, 0, sizeof( ImlKeyRecord ) );
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ImlKeyRecord.Action = Action;
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ImlKeyRecord.Name = ImlWriteString( pIml, Name );
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ImlKeyRecord.Values = Values;
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|
ImlKeyRecord.Next = pIml->KeyRecords;
|
||
|
|
pIml->KeyRecords = ImlWrite( pIml, &ImlKeyRecord, sizeof( ImlKeyRecord ) );
|
||
|
|
pIml->NumberOfKeyRecords += 1;
|
||
|
|
return TRUE;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
BOOLEAN
|
||
|
|
ImlAddIniVariableRecord(
|
||
|
|
PINSTALLATION_MODIFICATION_LOGFILE pIml,
|
||
|
|
IML_INIVARIABLE_ACTION Action,
|
||
|
|
PWSTR Name,
|
||
|
|
PWSTR OldValue,
|
||
|
|
PWSTR NewValue,
|
||
|
|
POFFSET *Variables
|
||
|
|
)
|
||
|
|
{
|
||
|
|
IML_INIVARIABLE_RECORD ImlIniVariableRecord;
|
||
|
|
|
||
|
|
memset( &ImlIniVariableRecord, 0, sizeof( ImlIniVariableRecord ) );
|
||
|
|
ImlIniVariableRecord.Action = Action;
|
||
|
|
ImlIniVariableRecord.Name = ImlWriteString( pIml, Name );
|
||
|
|
ImlIniVariableRecord.OldValue = ImlWriteString( pIml, OldValue );
|
||
|
|
ImlIniVariableRecord.NewValue = ImlWriteString( pIml, NewValue );
|
||
|
|
ImlIniVariableRecord.Next = *Variables;
|
||
|
|
*Variables = ImlWrite( pIml, &ImlIniVariableRecord, sizeof( ImlIniVariableRecord ) );
|
||
|
|
return TRUE;
|
||
|
|
}
|
||
|
|
|
||
|
|
BOOLEAN
|
||
|
|
ImlAddIniSectionRecord(
|
||
|
|
PINSTALLATION_MODIFICATION_LOGFILE pIml,
|
||
|
|
IML_INISECTION_ACTION Action,
|
||
|
|
PWSTR Name,
|
||
|
|
POFFSET Variables,
|
||
|
|
POFFSET *Sections
|
||
|
|
)
|
||
|
|
{
|
||
|
|
IML_INISECTION_RECORD ImlIniSectionRecord;
|
||
|
|
|
||
|
|
memset( &ImlIniSectionRecord, 0, sizeof( ImlIniSectionRecord ) );
|
||
|
|
ImlIniSectionRecord.Action = Action;
|
||
|
|
ImlIniSectionRecord.Name = ImlWriteString( pIml, Name );
|
||
|
|
ImlIniSectionRecord.Variables = Variables;
|
||
|
|
ImlIniSectionRecord.Next = *Sections;
|
||
|
|
*Sections = ImlWrite( pIml, &ImlIniSectionRecord, sizeof( ImlIniSectionRecord ) );
|
||
|
|
return TRUE;
|
||
|
|
}
|
||
|
|
|
||
|
|
BOOLEAN
|
||
|
|
ImlAddIniRecord(
|
||
|
|
PINSTALLATION_MODIFICATION_LOGFILE pIml,
|
||
|
|
IML_INI_ACTION Action,
|
||
|
|
PWSTR Name,
|
||
|
|
PFILETIME BackupLastWriteTime,
|
||
|
|
POFFSET Sections
|
||
|
|
)
|
||
|
|
{
|
||
|
|
IML_INI_RECORD ImlIniRecord;
|
||
|
|
|
||
|
|
memset( &ImlIniRecord, 0, sizeof( ImlIniRecord ) );
|
||
|
|
ImlIniRecord.Action = Action;
|
||
|
|
ImlIniRecord.Name = ImlWriteString( pIml, Name );
|
||
|
|
ImlIniRecord.LastWriteTime = *BackupLastWriteTime;
|
||
|
|
ImlIniRecord.Sections = Sections;
|
||
|
|
ImlIniRecord.Next = pIml->IniRecords;
|
||
|
|
pIml->IniRecords = ImlWrite( pIml, &ImlIniRecord, sizeof( ImlIniRecord ) );
|
||
|
|
pIml->NumberOfIniRecords += 1;
|
||
|
|
return TRUE;
|
||
|
|
}
|