786 lines
19 KiB
C
786 lines
19 KiB
C
|
/*++
|
||
|
|
|
||
|
|
Copyright (c) 1998 Microsoft Corporation
|
||
|
|
|
||
|
|
Module Name:
|
||
|
|
|
||
|
|
expand.c
|
||
|
|
|
||
|
|
Abstract:
|
||
|
|
|
||
|
|
This module implements the file expand command.
|
||
|
|
|
||
|
|
Author:
|
||
|
|
|
||
|
|
Mike Sliger (msliger) 29-Apr-1999
|
||
|
|
|
||
|
|
Revision History:
|
||
|
|
|
||
|
|
--*/
|
||
|
|
|
||
|
|
#include "cmdcons.h"
|
||
|
|
#pragma hdrstop
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
//
|
||
|
|
// structure tunneled thru SpExpandFile to carry info to/from callback
|
||
|
|
//
|
||
|
|
typedef struct {
|
||
|
|
LPWSTR FileSpec;
|
||
|
|
BOOLEAN DisplayFiles;
|
||
|
|
BOOLEAN MatchedAnyFiles;
|
||
|
|
ULONG NumberOfFilesDone;
|
||
|
|
BOOLEAN UserAborted;
|
||
|
|
BOOLEAN OverwriteExisting;
|
||
|
|
} EXPAND_CONTEXT;
|
||
|
|
|
||
|
|
BOOLEAN
|
||
|
|
pRcCheckForBreak( VOID );
|
||
|
|
|
||
|
|
EXPAND_CALLBACK_RESULT
|
||
|
|
pRcExpandCallback(
|
||
|
|
EXPAND_CALLBACK_MESSAGE Message,
|
||
|
|
PWSTR FileName,
|
||
|
|
PLARGE_INTEGER FileSize,
|
||
|
|
PLARGE_INTEGER FileTime,
|
||
|
|
ULONG FileAttributes,
|
||
|
|
PVOID UserData
|
||
|
|
);
|
||
|
|
|
||
|
|
BOOL
|
||
|
|
pRcPatternMatch(
|
||
|
|
LPWSTR pszString,
|
||
|
|
LPWSTR pszPattern,
|
||
|
|
IN BOOL fImplyDotAtEnd
|
||
|
|
);
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
ULONG
|
||
|
|
RcCmdExpand(
|
||
|
|
IN PTOKENIZED_LINE TokenizedLine
|
||
|
|
)
|
||
|
|
{
|
||
|
|
PLINE_TOKEN Token;
|
||
|
|
LPWSTR Arg;
|
||
|
|
LPWSTR SrcFile = NULL;
|
||
|
|
LPWSTR DstFile = NULL;
|
||
|
|
LPWSTR FileSpec = NULL;
|
||
|
|
LPWSTR SrcNtFile = NULL;
|
||
|
|
LPWSTR DstNtPath = NULL;
|
||
|
|
LPWSTR s;
|
||
|
|
IO_STATUS_BLOCK IoStatusBlock;
|
||
|
|
UNICODE_STRING UnicodeString;
|
||
|
|
HANDLE Handle;
|
||
|
|
OBJECT_ATTRIBUTES Obja;
|
||
|
|
NTSTATUS Status;
|
||
|
|
LPWSTR YesNo;
|
||
|
|
WCHAR Text[3];
|
||
|
|
IO_STATUS_BLOCK status_block;
|
||
|
|
FILE_BASIC_INFORMATION fileInfo;
|
||
|
|
WCHAR * pos;
|
||
|
|
ULONG CopyFlags = 0;
|
||
|
|
BOOLEAN DisplayFileList = FALSE;
|
||
|
|
BOOLEAN OverwriteExisting = NoCopyPrompt;
|
||
|
|
EXPAND_CONTEXT Context;
|
||
|
|
|
||
|
|
ASSERT(TokenizedLine->TokenCount >= 1);
|
||
|
|
|
||
|
|
if (RcCmdParseHelp( TokenizedLine, MSG_EXPAND_HELP )) {
|
||
|
|
goto exit;
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// Parse command line
|
||
|
|
//
|
||
|
|
|
||
|
|
for( Token = TokenizedLine->Tokens->Next;
|
||
|
|
Token != NULL;
|
||
|
|
Token = Token->Next ) {
|
||
|
|
|
||
|
|
Arg = Token->String;
|
||
|
|
if(( Arg[0] == L'-' ) || ( Arg[0] == L'/' )) {
|
||
|
|
switch( Arg[1] ) {
|
||
|
|
case L'F':
|
||
|
|
case L'f':
|
||
|
|
if(( Arg[2] == L':' ) && ( FileSpec == NULL )) {
|
||
|
|
FileSpec = &Arg[3];
|
||
|
|
} else {
|
||
|
|
RcMessageOut(MSG_SYNTAX_ERROR);
|
||
|
|
goto exit;
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
|
||
|
|
case L'D':
|
||
|
|
case L'd':
|
||
|
|
if ( Arg[2] == L'\0' ) {
|
||
|
|
DisplayFileList = TRUE;
|
||
|
|
} else {
|
||
|
|
RcMessageOut(MSG_SYNTAX_ERROR);
|
||
|
|
goto exit;
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
|
||
|
|
case L'Y':
|
||
|
|
case L'y':
|
||
|
|
if ( Arg[2] == L'\0' ) {
|
||
|
|
OverwriteExisting = TRUE;
|
||
|
|
} else {
|
||
|
|
RcMessageOut(MSG_SYNTAX_ERROR);
|
||
|
|
goto exit;
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
|
||
|
|
default:
|
||
|
|
RcMessageOut(MSG_SYNTAX_ERROR);
|
||
|
|
goto exit;
|
||
|
|
}
|
||
|
|
} else if( SrcFile == NULL ) {
|
||
|
|
SrcFile = Arg;
|
||
|
|
} else if( DstFile == NULL ) {
|
||
|
|
DstFile = SpDupStringW( Arg );
|
||
|
|
} else {
|
||
|
|
RcMessageOut(MSG_SYNTAX_ERROR);
|
||
|
|
goto exit;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if(( SrcFile == NULL ) ||
|
||
|
|
(( DstFile != NULL ) && ( DisplayFileList == TRUE ))) {
|
||
|
|
|
||
|
|
RcMessageOut(MSG_SYNTAX_ERROR);
|
||
|
|
goto exit;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( RcDoesPathHaveWildCards( SrcFile )) {
|
||
|
|
RcMessageOut(MSG_DIR_WILDCARD_NOT_SUPPORTED);
|
||
|
|
goto exit;
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// Translate the source name to the NT namespace
|
||
|
|
//
|
||
|
|
|
||
|
|
if (!RcFormFullPath( SrcFile, _CmdConsBlock->TemporaryBuffer, TRUE )) {
|
||
|
|
RcMessageOut(MSG_INVALID_PATH);
|
||
|
|
goto exit;
|
||
|
|
}
|
||
|
|
|
||
|
|
SrcNtFile = SpDupStringW( _CmdConsBlock->TemporaryBuffer );
|
||
|
|
|
||
|
|
if ( !DisplayFileList ) {
|
||
|
|
|
||
|
|
//
|
||
|
|
// Create a destination path name when the user did not
|
||
|
|
// provide one. We use the current drive and directory.
|
||
|
|
//
|
||
|
|
if( DstFile == NULL ) {
|
||
|
|
RcGetCurrentDriveAndDir( _CmdConsBlock->TemporaryBuffer );
|
||
|
|
DstFile = SpDupStringW( _CmdConsBlock->TemporaryBuffer );
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// create the destination paths
|
||
|
|
//
|
||
|
|
if (!RcFormFullPath( DstFile, _CmdConsBlock->TemporaryBuffer, FALSE )) {
|
||
|
|
RcMessageOut(MSG_INVALID_PATH);
|
||
|
|
goto exit;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!RcIsPathNameAllowed(_CmdConsBlock->TemporaryBuffer,FALSE,FALSE)) {
|
||
|
|
RcMessageOut(MSG_ACCESS_DENIED);
|
||
|
|
goto exit;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!RcFormFullPath( DstFile, _CmdConsBlock->TemporaryBuffer, TRUE )) {
|
||
|
|
RcMessageOut(MSG_INVALID_PATH);
|
||
|
|
goto exit;
|
||
|
|
}
|
||
|
|
|
||
|
|
DstNtPath = SpDupStringW( _CmdConsBlock->TemporaryBuffer );
|
||
|
|
|
||
|
|
//
|
||
|
|
// check for removable media
|
||
|
|
//
|
||
|
|
|
||
|
|
if (AllowRemovableMedia == FALSE && RcIsFileOnRemovableMedia(DstNtPath) == STATUS_SUCCESS) {
|
||
|
|
RcMessageOut(MSG_ACCESS_DENIED);
|
||
|
|
goto exit;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// setup context for callbacks
|
||
|
|
//
|
||
|
|
|
||
|
|
RtlZeroMemory(&Context, sizeof(Context));
|
||
|
|
Context.FileSpec = FileSpec;
|
||
|
|
Context.DisplayFiles = DisplayFileList;
|
||
|
|
Context.OverwriteExisting = OverwriteExisting;
|
||
|
|
|
||
|
|
if ( DisplayFileList ) {
|
||
|
|
pRcEnableMoreMode();
|
||
|
|
}
|
||
|
|
|
||
|
|
Status = SpExpandFile( SrcNtFile, DstNtPath, pRcExpandCallback, &Context );
|
||
|
|
|
||
|
|
pRcDisableMoreMode();
|
||
|
|
|
||
|
|
if( !NT_SUCCESS(Status) && !Context.UserAborted ) {
|
||
|
|
|
||
|
|
RcNtError( Status, MSG_CANT_EXPAND_FILE );
|
||
|
|
|
||
|
|
} else if (( Context.NumberOfFilesDone == 0 ) &&
|
||
|
|
( Context.MatchedAnyFiles == FALSE ) &&
|
||
|
|
( Context.FileSpec != NULL )) {
|
||
|
|
|
||
|
|
RcMessageOut( MSG_EXPAND_NO_MATCH, Context.FileSpec, SrcFile );
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( Context.MatchedAnyFiles ) {
|
||
|
|
if ( DisplayFileList ) {
|
||
|
|
RcMessageOut( MSG_EXPAND_SHOWN, Context.NumberOfFilesDone );
|
||
|
|
} else {
|
||
|
|
RcMessageOut( MSG_EXPAND_COUNT, Context.NumberOfFilesDone );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
exit:
|
||
|
|
|
||
|
|
if( SrcNtFile ) {
|
||
|
|
SpMemFree( SrcNtFile );
|
||
|
|
}
|
||
|
|
|
||
|
|
if( DstFile ) {
|
||
|
|
SpMemFree( DstFile );
|
||
|
|
}
|
||
|
|
|
||
|
|
if( DstNtPath ) {
|
||
|
|
SpMemFree( DstNtPath );
|
||
|
|
}
|
||
|
|
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
EXPAND_CALLBACK_RESULT
|
||
|
|
pRcExpandCallback(
|
||
|
|
EXPAND_CALLBACK_MESSAGE Message,
|
||
|
|
PWSTR FileName,
|
||
|
|
PLARGE_INTEGER FileSize,
|
||
|
|
PLARGE_INTEGER FileTime,
|
||
|
|
ULONG FileAttributes,
|
||
|
|
PVOID UserData
|
||
|
|
)
|
||
|
|
{
|
||
|
|
EXPAND_CONTEXT * Context = (EXPAND_CONTEXT * ) UserData;
|
||
|
|
LPWSTR YesNo;
|
||
|
|
EXPAND_CALLBACK_RESULT rc;
|
||
|
|
WCHAR Text[3];
|
||
|
|
|
||
|
|
switch ( Message )
|
||
|
|
{
|
||
|
|
case EXPAND_COPY_FILE:
|
||
|
|
|
||
|
|
//
|
||
|
|
// Watch for Ctl-C or ESC while processing
|
||
|
|
//
|
||
|
|
if ( pRcCheckForBreak() ) {
|
||
|
|
Context->UserAborted = TRUE;
|
||
|
|
return( EXPAND_ABORT );
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// See if filename matches filespec pattern, if any
|
||
|
|
//
|
||
|
|
if ( Context->FileSpec != NULL ) {
|
||
|
|
|
||
|
|
//
|
||
|
|
// To be "*.*"-friendly, we need to know if there is a real
|
||
|
|
// dot in the last element of the string to be matched
|
||
|
|
//
|
||
|
|
|
||
|
|
BOOL fAllowImpliedDot = TRUE;
|
||
|
|
LPWSTR p;
|
||
|
|
|
||
|
|
for ( p = FileName; *p != L'\0'; p++ ) {
|
||
|
|
if ( *p == L'.' ) {
|
||
|
|
fAllowImpliedDot = FALSE;
|
||
|
|
} else if ( *p == L'\\' ) {
|
||
|
|
fAllowImpliedDot = TRUE;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( !pRcPatternMatch( FileName,
|
||
|
|
Context->FileSpec,
|
||
|
|
fAllowImpliedDot )) {
|
||
|
|
//
|
||
|
|
// File doesn't match given spec: skip it
|
||
|
|
//
|
||
|
|
return( EXPAND_SKIP_THIS_FILE );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
Context->MatchedAnyFiles = TRUE; // don't report "no matches"
|
||
|
|
|
||
|
|
if ( Context->DisplayFiles ) {
|
||
|
|
|
||
|
|
//
|
||
|
|
// We're just listing file names, and we must do it now, because
|
||
|
|
// we're going to tell ExpandFile to skip this one, so this will
|
||
|
|
// be the last we here about it.
|
||
|
|
//
|
||
|
|
WCHAR LineOut[50];
|
||
|
|
WCHAR *p;
|
||
|
|
|
||
|
|
//
|
||
|
|
// Format the date and time, which go first.
|
||
|
|
//
|
||
|
|
RcFormatDateTime(FileTime,LineOut);
|
||
|
|
RcTextOut(LineOut);
|
||
|
|
|
||
|
|
//
|
||
|
|
// 2 spaces for separation
|
||
|
|
//
|
||
|
|
RcTextOut(L" ");
|
||
|
|
|
||
|
|
//
|
||
|
|
// File attributes.
|
||
|
|
//
|
||
|
|
p = LineOut;
|
||
|
|
|
||
|
|
*p++ = L'-';
|
||
|
|
|
||
|
|
if(FileAttributes & FILE_ATTRIBUTE_ARCHIVE) {
|
||
|
|
*p++ = L'a';
|
||
|
|
} else {
|
||
|
|
*p++ = L'-';
|
||
|
|
}
|
||
|
|
if(FileAttributes & FILE_ATTRIBUTE_READONLY) {
|
||
|
|
*p++ = L'r';
|
||
|
|
} else {
|
||
|
|
*p++ = L'-';
|
||
|
|
}
|
||
|
|
if(FileAttributes & FILE_ATTRIBUTE_HIDDEN) {
|
||
|
|
*p++ = L'h';
|
||
|
|
} else {
|
||
|
|
*p++ = L'-';
|
||
|
|
}
|
||
|
|
if(FileAttributes & FILE_ATTRIBUTE_SYSTEM) {
|
||
|
|
*p++ = L's';
|
||
|
|
} else {
|
||
|
|
*p++ = L'-';
|
||
|
|
}
|
||
|
|
|
||
|
|
*p++ = L'-';
|
||
|
|
*p++ = L'-';
|
||
|
|
*p++ = L'-';
|
||
|
|
*p = 0;
|
||
|
|
|
||
|
|
RcTextOut(LineOut);
|
||
|
|
|
||
|
|
//
|
||
|
|
// 2 spaces for separation
|
||
|
|
//
|
||
|
|
RcTextOut(L" ");
|
||
|
|
|
||
|
|
//
|
||
|
|
// Now, put the size in there. Right justified and space padded
|
||
|
|
// up to 8 chars. Otherwise unjustified or padded.
|
||
|
|
//
|
||
|
|
RcFormat64BitIntForOutput(FileSize->QuadPart,LineOut,TRUE);
|
||
|
|
if(FileSize->QuadPart > 99999999i64) {
|
||
|
|
RcTextOut(LineOut);
|
||
|
|
} else {
|
||
|
|
RcTextOut(LineOut+11); // outputs 8 chars
|
||
|
|
}
|
||
|
|
|
||
|
|
RcTextOut(L" ");
|
||
|
|
|
||
|
|
//
|
||
|
|
// Finally, put the filename on the line.
|
||
|
|
//
|
||
|
|
|
||
|
|
if( !RcTextOut( FileName ) || !RcTextOut( L"\r\n" )) {
|
||
|
|
|
||
|
|
Context->UserAborted = TRUE;
|
||
|
|
return( EXPAND_ABORT ); /* user aborted display output */
|
||
|
|
}
|
||
|
|
|
||
|
|
Context->NumberOfFilesDone++;
|
||
|
|
|
||
|
|
return( EXPAND_SKIP_THIS_FILE );
|
||
|
|
|
||
|
|
} // end if DisplayFiles
|
||
|
|
|
||
|
|
//
|
||
|
|
// This file qualified, and we're not just displaying, so tell
|
||
|
|
// ExpandFile to do it.
|
||
|
|
//
|
||
|
|
return( EXPAND_COPY_THIS_FILE );
|
||
|
|
|
||
|
|
case EXPAND_COPIED_FILE:
|
||
|
|
|
||
|
|
//
|
||
|
|
// Notification that a file has been copied successfully.
|
||
|
|
//
|
||
|
|
|
||
|
|
RcMessageOut( MSG_EXPANDED, FileName);
|
||
|
|
Context->NumberOfFilesDone++;
|
||
|
|
|
||
|
|
return( EXPAND_NO_ERROR );
|
||
|
|
|
||
|
|
case EXPAND_QUERY_OVERWRITE:
|
||
|
|
|
||
|
|
//
|
||
|
|
// Query for approval to overwrite an existing file.
|
||
|
|
//
|
||
|
|
|
||
|
|
if ( Context->OverwriteExisting ) {
|
||
|
|
return( EXPAND_COPY_THIS_FILE );
|
||
|
|
}
|
||
|
|
|
||
|
|
rc = EXPAND_SKIP_THIS_FILE;
|
||
|
|
|
||
|
|
YesNo = SpRetreiveMessageText( ImageBase, MSG_YESNOALLQUIT, NULL, 0 );
|
||
|
|
if ( YesNo ) {
|
||
|
|
|
||
|
|
RcMessageOut( MSG_COPY_OVERWRITE_QUIT, FileName );
|
||
|
|
if( RcLineIn( Text, 2 ) ) {
|
||
|
|
if (( Text[0] == YesNo[2] ) || ( Text[0] == YesNo[3] )) {
|
||
|
|
|
||
|
|
//
|
||
|
|
// Yes, we may overwrite this file
|
||
|
|
//
|
||
|
|
rc = EXPAND_COPY_THIS_FILE;
|
||
|
|
|
||
|
|
} else if (( Text[0] == YesNo[4] ) || ( Text[0] == YesNo[5] )) {
|
||
|
|
|
||
|
|
//
|
||
|
|
// All, we may overwrite this file, and don't prompt again
|
||
|
|
//
|
||
|
|
Context->OverwriteExisting = TRUE;
|
||
|
|
rc = EXPAND_COPY_THIS_FILE;
|
||
|
|
|
||
|
|
} else if (( Text[0] == YesNo[6] ) || ( Text[0] == YesNo[7] )) {
|
||
|
|
|
||
|
|
//
|
||
|
|
// No, and stop too.
|
||
|
|
//
|
||
|
|
Context->UserAborted = TRUE;
|
||
|
|
rc = EXPAND_ABORT;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
SpMemFree( YesNo );
|
||
|
|
}
|
||
|
|
|
||
|
|
return( rc );
|
||
|
|
|
||
|
|
case EXPAND_NOTIFY_MULTIPLE:
|
||
|
|
|
||
|
|
//
|
||
|
|
// We're being advised that the source contains multiple files.
|
||
|
|
// If we don't have a selective filespec, we'll abort.
|
||
|
|
//
|
||
|
|
|
||
|
|
if ( Context->FileSpec == NULL ) {
|
||
|
|
|
||
|
|
RcMessageOut( MSG_FILESPEC_REQUIRED );
|
||
|
|
Context->UserAborted = TRUE;
|
||
|
|
return ( EXPAND_ABORT );
|
||
|
|
}
|
||
|
|
|
||
|
|
return ( EXPAND_CONTINUE );
|
||
|
|
|
||
|
|
case EXPAND_NOTIFY_CANNOT_EXPAND:
|
||
|
|
|
||
|
|
//
|
||
|
|
// We're being advised that the source file format is not
|
||
|
|
// recognized. We display the file name and abort.
|
||
|
|
//
|
||
|
|
|
||
|
|
RcMessageOut( MSG_CANT_EXPAND_FILE, FileName );
|
||
|
|
Context->UserAborted = TRUE;
|
||
|
|
|
||
|
|
return ( EXPAND_ABORT );
|
||
|
|
|
||
|
|
case EXPAND_NOTIFY_CREATE_FAILED:
|
||
|
|
|
||
|
|
//
|
||
|
|
// We're being advised that the current target file cannot be
|
||
|
|
// created. We display the file name and abort.
|
||
|
|
//
|
||
|
|
|
||
|
|
RcMessageOut( MSG_EXPAND_FAILED, FileName );
|
||
|
|
Context->UserAborted = TRUE;
|
||
|
|
|
||
|
|
return ( EXPAND_ABORT );
|
||
|
|
|
||
|
|
default:
|
||
|
|
|
||
|
|
//
|
||
|
|
// Ignore any unexpected callback.
|
||
|
|
//
|
||
|
|
|
||
|
|
return( EXPAND_NO_ERROR );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
BOOLEAN
|
||
|
|
pRcCheckForBreak( VOID )
|
||
|
|
{
|
||
|
|
while ( SpInputIsKeyWaiting() ) {
|
||
|
|
|
||
|
|
ULONG Key = SpInputGetKeypress();
|
||
|
|
|
||
|
|
switch ( Key ) {
|
||
|
|
|
||
|
|
case ASCI_ETX:
|
||
|
|
case ASCI_ESC:
|
||
|
|
RcMessageOut( MSG_BREAK );
|
||
|
|
return TRUE;
|
||
|
|
|
||
|
|
default:
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return FALSE;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
//
|
||
|
|
// pRcPatternMatch() & helpers
|
||
|
|
//
|
||
|
|
|
||
|
|
#define WILDCARD L'*' /* zero or more of any character */
|
||
|
|
#define WILDCHAR L'?' /* one of any character (does not match END) */
|
||
|
|
#define END L'\0' /* terminal character */
|
||
|
|
#define DOT L'.' /* may be implied at end ("hosts" matches "*.") */
|
||
|
|
|
||
|
|
static int __inline Lower(c)
|
||
|
|
{
|
||
|
|
if ((c >= L'A') && (c <= L'Z'))
|
||
|
|
{
|
||
|
|
return(c + (L'a' - L'A'));
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
return(c);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
static int __inline CharacterMatch(WCHAR chCharacter, WCHAR chPattern)
|
||
|
|
{
|
||
|
|
if (Lower(chCharacter) == Lower(chPattern))
|
||
|
|
{
|
||
|
|
return(TRUE);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
return(FALSE);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
BOOL
|
||
|
|
pRcPatternMatch(
|
||
|
|
LPWSTR pszString,
|
||
|
|
LPWSTR pszPattern,
|
||
|
|
IN BOOL fImplyDotAtEnd
|
||
|
|
)
|
||
|
|
{
|
||
|
|
/* RECURSIVE */
|
||
|
|
|
||
|
|
//
|
||
|
|
// This function does not deal with 8.3 conventions which might
|
||
|
|
// be expected for filename comparisons. (In an 8.3 environment,
|
||
|
|
// "alongfilename.html" would match "alongfil.htm")
|
||
|
|
//
|
||
|
|
// This code is NOT MBCS-enabled
|
||
|
|
//
|
||
|
|
|
||
|
|
for ( ; ; )
|
||
|
|
{
|
||
|
|
switch (*pszPattern)
|
||
|
|
{
|
||
|
|
|
||
|
|
case END:
|
||
|
|
|
||
|
|
//
|
||
|
|
// Reached end of pattern, so we're done. Matched if
|
||
|
|
// end of string, no match if more string remains.
|
||
|
|
//
|
||
|
|
|
||
|
|
return(*pszString == END);
|
||
|
|
|
||
|
|
case WILDCHAR:
|
||
|
|
|
||
|
|
//
|
||
|
|
// Next in pattern is a wild character, which matches
|
||
|
|
// anything except end of string. If we reach the end
|
||
|
|
// of the string, the implied DOT would also match.
|
||
|
|
//
|
||
|
|
|
||
|
|
if (*pszString == END)
|
||
|
|
{
|
||
|
|
if (fImplyDotAtEnd == TRUE)
|
||
|
|
{
|
||
|
|
fImplyDotAtEnd = FALSE;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
return(FALSE);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
pszString++;
|
||
|
|
}
|
||
|
|
|
||
|
|
pszPattern++;
|
||
|
|
|
||
|
|
break;
|
||
|
|
|
||
|
|
case WILDCARD:
|
||
|
|
|
||
|
|
//
|
||
|
|
// Next in pattern is a wildcard, which matches anything.
|
||
|
|
// Find the required character that follows the wildcard,
|
||
|
|
// and search the string for it. At each occurence of the
|
||
|
|
// required character, try to match the remaining pattern.
|
||
|
|
//
|
||
|
|
// There are numerous equivalent patterns in which multiple
|
||
|
|
// WILDCARD and WILDCHAR are adjacent. We deal with these
|
||
|
|
// before our search for the required character.
|
||
|
|
//
|
||
|
|
// Each WILDCHAR burns one non-END from the string. An END
|
||
|
|
// means we have a match. Additional WILDCARDs are ignored.
|
||
|
|
//
|
||
|
|
|
||
|
|
for ( ; ; )
|
||
|
|
{
|
||
|
|
pszPattern++;
|
||
|
|
|
||
|
|
if (*pszPattern == END)
|
||
|
|
{
|
||
|
|
return(TRUE);
|
||
|
|
}
|
||
|
|
else if (*pszPattern == WILDCHAR)
|
||
|
|
{
|
||
|
|
if (*pszString == END)
|
||
|
|
{
|
||
|
|
if (fImplyDotAtEnd == TRUE)
|
||
|
|
{
|
||
|
|
fImplyDotAtEnd = FALSE;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
return(FALSE);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
pszString++;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else if (*pszPattern != WILDCARD)
|
||
|
|
{
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// Now we have a regular character to search the string for.
|
||
|
|
//
|
||
|
|
|
||
|
|
while (*pszString != END)
|
||
|
|
{
|
||
|
|
//
|
||
|
|
// For each match, use recursion to see if the remainder
|
||
|
|
// of the pattern accepts the remainder of the string.
|
||
|
|
// If it does not, continue looking for other matches.
|
||
|
|
//
|
||
|
|
|
||
|
|
if (CharacterMatch(*pszString, *pszPattern) == TRUE)
|
||
|
|
{
|
||
|
|
if (pRcPatternMatch(pszString + 1, pszPattern + 1, fImplyDotAtEnd) == TRUE)
|
||
|
|
{
|
||
|
|
return(TRUE);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
pszString++;
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// Reached end of string without finding required character
|
||
|
|
// which followed the WILDCARD. If the required character
|
||
|
|
// is a DOT, consider matching the implied DOT.
|
||
|
|
//
|
||
|
|
// Since the remaining string is empty, the only pattern which
|
||
|
|
// could match after the DOT would be zero or more WILDCARDs,
|
||
|
|
// so don't bother with recursion.
|
||
|
|
//
|
||
|
|
|
||
|
|
if ((*pszPattern == DOT) && (fImplyDotAtEnd == TRUE))
|
||
|
|
{
|
||
|
|
pszPattern++;
|
||
|
|
|
||
|
|
while (*pszPattern != END)
|
||
|
|
{
|
||
|
|
if (*pszPattern != WILDCARD)
|
||
|
|
{
|
||
|
|
return(FALSE);
|
||
|
|
}
|
||
|
|
|
||
|
|
pszPattern++;
|
||
|
|
}
|
||
|
|
|
||
|
|
return(TRUE);
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// Reached end of the string without finding required character.
|
||
|
|
//
|
||
|
|
|
||
|
|
return(FALSE);
|
||
|
|
break;
|
||
|
|
|
||
|
|
default:
|
||
|
|
|
||
|
|
//
|
||
|
|
// Nothing special about the pattern character, so it
|
||
|
|
// must match source character.
|
||
|
|
//
|
||
|
|
|
||
|
|
if (CharacterMatch(*pszString, *pszPattern) == FALSE)
|
||
|
|
{
|
||
|
|
if ((*pszPattern == DOT) &&
|
||
|
|
(*pszString == END) &&
|
||
|
|
(fImplyDotAtEnd == TRUE))
|
||
|
|
{
|
||
|
|
fImplyDotAtEnd = FALSE;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
return(FALSE);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (*pszString != END)
|
||
|
|
{
|
||
|
|
pszString++;
|
||
|
|
}
|
||
|
|
|
||
|
|
pszPattern++;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|