448 lines
13 KiB
C
448 lines
13 KiB
C
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#define UNICODE
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#define _INC_OLE
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#include <windows.h>
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#include <shellapi.h>
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#include <shlobj.h>
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#include <stdio.h>
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#include <string.h>
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void
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FatalError(
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LPSTR Message,
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ULONG_PTR MessageParameter1,
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ULONG_PTR MessageParameter2
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)
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{
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if (Message != NULL) {
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fprintf( stderr, "FIXLINK: " );
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fprintf( stderr, Message, MessageParameter1, MessageParameter2 );
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fprintf( stderr, "\n" );
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}
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exit( 1 );
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}
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void
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Usage(
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LPSTR Message,
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ULONG MessageParameter
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)
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{
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fprintf( stderr, "usage: FIXLINKS [-v] [-q] [-s SystemRoot | -S searchString replaceString]\n" );
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fprintf( stderr, " [-r Directory | fileNames]\n" );
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fprintf( stderr, "where: -v specifies verbose output\n" );
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fprintf( stderr, " -q specifies query only, no actual updating of link files\n" );
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fprintf( stderr, " -s specifies the value to look for and replace with %%SystemRoot%%\n" );
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fprintf( stderr, " -S specifies the value to look for and replace with replaceString\n" );
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fprintf( stderr, " -r Directory specifies the root of a directory tree to\n" );
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fprintf( stderr, " search for .LNK files to update.\n" );
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fprintf( stderr, " fileNames specify one or more .LNK files to be updated\n" );
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//
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// No return from FatalError
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//
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if (Message != NULL) {
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fprintf( stderr, "\n" );
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}
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FatalError( Message, MessageParameter, 0 );
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}
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PWSTR
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GetErrorMessage(
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DWORD MessageId
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)
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{
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PWSTR Message, s;
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Message = NULL;
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FormatMessage( FORMAT_MESSAGE_FROM_SYSTEM |
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FORMAT_MESSAGE_ALLOCATE_BUFFER,
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NULL,
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MessageId,
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0,
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(PWSTR)&Message,
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128,
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(va_list *)NULL
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);
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if (Message == NULL) {
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if (Message = (PWSTR)LocalAlloc( 0, 128 )) {
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swprintf( Message, L"Unable to get message for %08x", MessageId );
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}
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}
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else {
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s = wcsrchr( Message, L'\r' );
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if (s == NULL) {
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s = wcsrchr( Message, L'\n' );
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}
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if (s != NULL) {
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*s = UNICODE_NULL;
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}
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}
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return Message;
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}
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PWSTR
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GetArgAsUnicode(
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LPSTR s
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)
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{
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ULONG n;
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PWSTR ps;
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n = strlen( s );
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ps = HeapAlloc( GetProcessHeap(),
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0,
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(n + 1) * sizeof( WCHAR )
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);
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if (ps == NULL) {
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FatalError( "Out of memory", 0, 0 );
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}
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if (MultiByteToWideChar( CP_ACP,
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MB_PRECOMPOSED,
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s,
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n,
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ps,
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n
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) != (LONG)n
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) {
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FatalError( "Unable to convert parameter '%s' to Unicode (%u)",
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(ULONG_PTR)s,
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GetLastError() );
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}
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ps[ n ] = UNICODE_NULL;
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return ps;
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}
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WCHAR SearchString[ MAX_PATH ];
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ULONG cchSearchString;
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WCHAR ReplaceString[ MAX_PATH ];
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ULONG cchReplaceString;
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WCHAR RootOfSearch[ MAX_PATH ];
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BOOL VerboseFlag;
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BOOL QueryFlag;
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HRESULT
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ProcessLinkFile(
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PWSTR FileName
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);
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void
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ProcessLinkFilesInDirectoryTree(
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PWSTR Directory
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);
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__cdecl
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main(
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int argc,
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char *argv[]
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)
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{
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char *s;
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BOOL FileArgumentSeen = FALSE;
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PWSTR FileName;
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HRESULT Error;
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GetEnvironmentVariable( L"SystemRoot", SearchString, MAX_PATH );
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cchSearchString = wcslen( SearchString );
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if (cchSearchString == 0) {
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FatalError( "Unable to get value of SYSTEMROOT environment variable", 0, 0 );
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}
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wcscpy( ReplaceString, L"%SystemRoot%" );
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cchReplaceString = wcslen( ReplaceString );
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while (--argc) {
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s = *++argv;
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if (*s == '-' || *s == '/') {
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while (*++s) {
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switch( tolower( *s ) ) {
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case 'r':
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if (--argc) {
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GetFullPathName( GetArgAsUnicode( *++argv ),
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MAX_PATH,
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RootOfSearch,
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&FileName
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);
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}
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else {
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Usage( "Missing parameter to -r switch", 0 );
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}
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break;
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case 's':
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if (--argc) {
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wcscpy( SearchString, GetArgAsUnicode( *++argv ) );
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}
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else {
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Usage( "Missing parameter to -%c switch", (ULONG)*s);
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}
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cchSearchString = wcslen( SearchString );
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if (cchSearchString == 0) {
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FatalError( "May not specify an empty search string", 0, 0 );
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}
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if (*s == 'S') {
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if (--argc) {
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wcscpy( ReplaceString, GetArgAsUnicode( *++argv ) );
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}
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else {
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Usage( "Missing parameter to -S switch", 0 );
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}
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cchReplaceString = wcslen( ReplaceString );
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if (cchSearchString == 0) {
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FatalError( "May not specify an empty replacement string", 0, 0 );
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}
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}
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break;
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case 'q':
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QueryFlag = TRUE;
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break;
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case 'v':
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VerboseFlag = TRUE;
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break;
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default:
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Usage( "Invalid switch -%c'", (ULONG)*s );
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}
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}
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}
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else {
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if (wcslen( RootOfSearch )) {
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FatalError( "May not specify file names with -r option", 0, 0 );
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}
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FileArgumentSeen = TRUE;
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FileName = GetArgAsUnicode( s );
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if (FileName == NULL) {
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Error = (HRESULT)GetLastError();
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}
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else {
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Error = ProcessLinkFile( FileName );
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}
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if (Error != NO_ERROR) {
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FatalError( "Failed to load from file '%s' (%ws)",
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(ULONG_PTR)s,
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(ULONG_PTR)GetErrorMessage( Error )
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);
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}
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}
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}
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if (!FileArgumentSeen) {
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if (wcslen( RootOfSearch )) {
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ProcessLinkFilesInDirectoryTree( RootOfSearch );
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}
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else {
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Usage( "No textFile specified", 0 );
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}
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}
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return 0;
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}
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HRESULT
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ProcessLinkFile(
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PWSTR FileName
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)
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{
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HRESULT rc;
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IShellLink *psl;
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IPersistFile *ppf;
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WCHAR szPath[ MAX_PATH ];
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WCHAR szNewPath[ MAX_PATH ];
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PWSTR s;
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BOOL FileNameShown;
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BOOL FileUpdated;
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if (FAILED(rc = CoInitialize( NULL )))
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return rc;
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rc = CoCreateInstance( &CLSID_ShellLink,
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NULL,
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CLSCTX_INPROC,
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&IID_IShellLink,
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&psl
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);
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if (!SUCCEEDED( rc )) {
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FatalError( "Unable to create ShellLink instance (%ws)",
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(ULONG_PTR)GetErrorMessage( rc ),
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0
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);
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}
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rc = (psl->lpVtbl->QueryInterface)( psl, &IID_IPersistFile, &ppf );
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if (!SUCCEEDED( rc )) {
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FatalError( "Unable to get ShellLink PersistFile interface (%ws)",
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(ULONG_PTR)GetErrorMessage( rc ),
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0
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);
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ppf->lpVtbl->Release( ppf );
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}
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rc = (ppf->lpVtbl->Load)( ppf, FileName, STGM_READWRITE );
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if (!SUCCEEDED( rc )) {
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printf( "%ws: unable to get load link file (%ws)\n", FileName, GetErrorMessage( rc ) );
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ppf->lpVtbl->Release( ppf );
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psl->lpVtbl->Release( psl );
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return S_OK;
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}
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FileUpdated = FALSE;
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FileNameShown = FALSE;
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if (VerboseFlag) {
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printf( "%ws:\n", FileName );
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FileNameShown = TRUE;
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}
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rc = (psl->lpVtbl->GetPath)( psl, szPath, MAX_PATH, NULL, 0 );
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if (SUCCEEDED( rc )) {
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if (!_wcsnicmp( szPath, SearchString, cchSearchString )) {
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if (!FileNameShown) {
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printf( "%ws:\n", FileName );
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FileNameShown = TRUE;
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}
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printf( " Path: %ws", szPath );
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wcscpy( szNewPath, ReplaceString );
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wcscat( szNewPath, &szPath[ cchSearchString ] );
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if (QueryFlag) {
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printf( " - would be changed to %ws\n", szNewPath );
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}
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else {
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rc = (psl->lpVtbl->SetPath)( psl, szNewPath );
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if (SUCCEEDED( rc )) {
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printf( " - changed to %ws\n", szNewPath );
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FileUpdated = TRUE;
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}
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else {
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printf( " - unable to modify (%ws)\n", GetErrorMessage( rc ) );
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}
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}
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}
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else {
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if (VerboseFlag) {
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printf( " Path: %ws\n", szPath );
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}
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}
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}
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else {
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ppf->lpVtbl->Release( ppf );
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psl->lpVtbl->Release( psl );
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printf( " Unable to get ShellLink Path (%ws)\n", GetErrorMessage( rc ) );
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}
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rc = (psl->lpVtbl->GetWorkingDirectory)( psl, szPath, MAX_PATH );
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if (SUCCEEDED( rc )) {
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if (!_wcsnicmp( szPath, SearchString, cchSearchString )) {
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if (!FileNameShown) {
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printf( "%ws:\n", FileName );
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FileNameShown = TRUE;
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}
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printf( " Working Directory: %ws", szPath );
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wcscpy( szNewPath, ReplaceString );
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wcscat( szNewPath, &szPath[ cchSearchString ] );
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if (QueryFlag) {
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printf( " - would be changed to %ws\n", szNewPath );
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}
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else {
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rc = (psl->lpVtbl->SetWorkingDirectory)( psl, szNewPath );
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if (SUCCEEDED( rc )) {
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printf( " - changed to %ws\n", szNewPath );
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FileUpdated = TRUE;
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}
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else {
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printf( " - unable to modify (%ws)\n", GetErrorMessage( rc ) );
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}
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}
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}
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else {
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if (VerboseFlag) {
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printf( " Working Directory: %ws\n", szPath );
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}
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}
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}
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else {
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ppf->lpVtbl->Release( ppf );
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psl->lpVtbl->Release( psl );
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printf( " Unable to get ShellLink Working Directory (%ws)\n", GetErrorMessage( rc ) );
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}
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if (FileUpdated) {
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rc = (ppf->lpVtbl->Save)( ppf, FileName, TRUE );
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if (SUCCEEDED( rc )) {
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rc = (ppf->lpVtbl->SaveCompleted)( ppf, FileName );
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if (SUCCEEDED( rc )) {
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printf( " Link file updated.\n" );
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}
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else {
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printf( " **** unable to save changes to link file (%ws)\n", GetErrorMessage( rc ) );
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}
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}
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}
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ppf->lpVtbl->Release( ppf );
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psl->lpVtbl->Release( psl );
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return S_OK;
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}
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void
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ProcessLinkFilesInDirectoryTree(
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|
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PWSTR Directory
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)
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{
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HANDLE FindHandle;
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WIN32_FIND_DATA FindData;
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WCHAR Path[ MAX_PATH ];
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PWSTR FileName;
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ULONG n;
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||
|
|
|
||
|
|
wcscpy( Path, Directory );
|
||
|
|
FileName = &Path[ wcslen( Path ) ];
|
||
|
|
*FileName++ = L'\\';
|
||
|
|
wcscpy( FileName, L"*" );
|
||
|
|
|
||
|
|
FindHandle = FindFirstFile( Path, &FindData );
|
||
|
|
if (FindHandle == INVALID_HANDLE_VALUE) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (VerboseFlag) {
|
||
|
|
printf( "%ws\n", Directory );
|
||
|
|
}
|
||
|
|
|
||
|
|
SetCurrentDirectory( Directory );
|
||
|
|
do {
|
||
|
|
if (FindData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) {
|
||
|
|
if (wcscmp( FindData.cFileName, L"." ) && wcscmp( FindData.cFileName, L".." )) {
|
||
|
|
wcscpy( FileName, FindData.cFileName );
|
||
|
|
ProcessLinkFilesInDirectoryTree( Path );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
n = wcslen( FindData.cFileName );
|
||
|
|
while (n-- && FindData.cFileName[ n ] != L'.') {
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!_wcsicmp( &FindData.cFileName[ n ], L".lnk" )) {
|
||
|
|
wcscpy( FileName, FindData.cFileName );
|
||
|
|
ProcessLinkFile( Path );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
while (FindNextFile( FindHandle, &FindData ));
|
||
|
|
|
||
|
|
FindClose( FindHandle );
|
||
|
|
return;
|
||
|
|
}
|