/********************************************************************
* MoveFile
* lpFromFileName: old file path
* lpToFileName: new file path
********************************************************************/
BOOL MoveFile(const char * lpFromFileName, const char * lpToFileName)
{
OSErr theErr;
FSRef fromFileRef;
FSRef toFileRef;
FSRef parentFolderRef;
// Get the path to the old file
theErr = FSPathMakeRef((const UInt8 *)lpFromFileName, &fromFileRef, NULL);
if (theErr != noErr)
{
SetLastError(theErr);
return false;
}
// Get the path to the new folder for the file
char folderName[strlen(lpToFileName)];
CFStringRef folderPathCFString = CFStringCreateWithCString(NULL, lpToFileName, kCFStringEncodingUTF8);
CFURLRef fileURL = CFURLCreateWithFileSystemPath(NULL, folderPathCFString, kCFURLPOSIXPathStyle, FALSE);
CFURLRef folderURL = CFURLCreateCopyDeletingLastPathComponent(NULL, fileURL);
CFURLGetFileSystemRepresentation(folderURL, TRUE, (UInt8 *)folderName, strlen(lpToFileName));
theErr = FSPathMakeRef((UInt8 *)folderName, &parentFolderRef, NULL);
CFRelease(fileURL);
CFRelease(folderURL);
CFRelease(folderPathCFString);
// Move the old file
theErr = FSMoveObject(&fromFileRef, &parentFolderRef, &toFileRef);
if (theErr != noErr)
{
SetLastError(theErr);
return false;
}
// Get a CFString for the new file name
CFStringRef newFileNameCFString = CFStringCreateWithCString(NULL, lpToFileName, kCFStringEncodingUTF8);
fileURL = CFURLCreateWithFileSystemPath(NULL, newFileNameCFString, kCFURLPOSIXPathStyle, FALSE);
CFRelease(newFileNameCFString);
newFileNameCFString = CFURLCopyLastPathComponent(fileURL);
CFRelease(fileURL);
// Convert CFString to Unicode and rename the file
UniChar unicodeFileName[256];
CFStringGetCharacters(newFileNameCFString, CFRangeMake(0, CFStringGetLength(newFileNameCFString)),
unicodeFileName);
theErr = FSRenameUnicode(&toFileRef, CFStringGetLength(newFileNameCFString), unicodeFileName,
kTextEncodingUnknown, NULL);
if (theErr != noErr)
{
SetLastError(theErr);
CFRelease(newFileNameCFString);
return false;
}
CFRelease(newFileNameCFString);
SetLastError(theErr);
return true;
}
void HLFileSystemObject::SetName(CFStringRef inName)
{
// the FSRef for a file can change after renaming,
// so don't allow it to be done while the file is open
ThrowIf(IsOpenForReading() || IsOpenForWriting(), CAException(fBsyErr), "HLFileSystemObject::SetName: can't change the name of an open file");
// make a raw unicode string out of the CFString
CACFString theFileName(inName, false);
UInt32 theFileNameLength = 255;
UniChar theFileNameString[255];
theFileName.GetUnicodeString(theFileNameString, theFileNameLength);
// save off the current FSRef, since it may change
FSRef theOldFSRef;
memcpy(&theOldFSRef, &mFSRef, sizeof(FSRef));
// rename the file, getting us the new FSRef
OSStatus theError = FSRenameUnicode(&theOldFSRef, theFileNameLength, theFileNameString, kTextEncodingUnknown, &mFSRef);
ThrowIfError(theError, CAException(theError), "HLFileSystemObject::SetName: couldn't rename the file");
}
void HLFileSystemObject::SetNameExtension(CFStringRef inNameExtension)
{
// the FSRef for a file can change after renaming,
// so don't allow it to be done while the file is open
ThrowIf(IsOpenForReading() || IsOpenForWriting(), CAException(fBsyErr), "HLFileSystemObject::SetNameExtension: can't change the file name extension of an open file");
// make a raw unicode string out of the CFString containing the new extension
CACFString theExtension(inNameExtension, false);
UInt32 theExtensionLength = 255;
UniChar theExtensionString[255];
theExtension.GetUnicodeString(theExtensionString, theExtensionLength);
// get the file name from the catalog info
HFSUniStr255 theNameString;
OSStatus theError = FSGetCatalogInfo(&mFSRef, kFSCatInfoNone, NULL, &theNameString, NULL, NULL);
ThrowIfError(theError, CAException(theError), "HLFileSystemObject::SetNameExtension: couldn't get the catalog information");
// use Launch Services to find the start of the extension
UniCharCount theExtensionStart = 0;
LSGetExtensionInfo(theNameString.length, theNameString.unicode, &theExtensionStart);
UInt32 theCharsToCopy;
if(theExtensionStart != kLSInvalidExtensionIndex)
{
// there already was an extension, so replace it
// figure out how many characters worth of extension can fit
theCharsToCopy = 255UL - theExtensionStart;
// range it against the actual length of the extension
theCharsToCopy = theExtensionLength < theCharsToCopy ? theExtensionLength : theCharsToCopy;
// copy the extension
memcpy(&theNameString.unicode[theExtensionStart], theExtensionString, theCharsToCopy * sizeof(UniChar));
// update the length of the name string
theNameString.length = theExtensionStart + theCharsToCopy;
// save off the current FSRef, since it may change
FSRef theOldFSRef;
memcpy(&theOldFSRef, &mFSRef, sizeof(FSRef));
// rename the file, getting us the new FSRef
theError = FSRenameUnicode(&theOldFSRef, theNameString.length, theNameString.unicode, kTextEncodingUnknown, &mFSRef);
ThrowIfError(theError, CAException(theError), "HLFileSystemObject::SetName: couldn't rename the file");
}
else if(theNameString.length < 254)
{
// there isn't an extension yet, and there's room for at least two characters
// make a raw unicode string with the period
CFRange thePeriodRange = { 0, 1 };
UniChar thePeriodString[255];
CFStringGetCharacters(HLFileSystemCFStringConstants::sNameExtensionDelimiter, thePeriodRange, thePeriodString);
// copy it at the end of the string
theNameString.unicode[theNameString.length] = thePeriodString[0];
// update the length
theNameString.length += 1;
// figure out how many characters worth of extension can fit
theCharsToCopy = 255UL - theNameString.length;
// range it against the actual length of the extension
theCharsToCopy = theExtensionLength < theCharsToCopy ? theExtensionLength : theCharsToCopy;
// copy the extension
memcpy(&theNameString.unicode[theNameString.length], theExtensionString, theCharsToCopy * sizeof(UniChar));
// update the length of the name string
theNameString.length += theCharsToCopy;
// save off the current FSRef, since it may change
FSRef theOldFSRef;
memcpy(&theOldFSRef, &mFSRef, sizeof(FSRef));
// rename the file, getting us the new FSRef
theError = FSRenameUnicode(&theOldFSRef, theNameString.length, theNameString.unicode, kTextEncodingUnknown, &mFSRef);
ThrowIfError(theError, CAException(theError), "HLFileSystemObject::SetName: couldn't rename the file");
}
}
OSErr FSExchangeObjectsEmulate(const FSRef *sourceRef, const FSRef *destRef, FSRef *newSourceRef, FSRef *newDestRef) {
enum {
/* get all settable info except for mod dates, plus the volume refNum and parent directory ID */
kGetCatInformationMask = (kFSCatInfoSettableInfo |
kFSCatInfoVolume |
kFSCatInfoParentDirID) &
~(kFSCatInfoContentMod | kFSCatInfoAttrMod),
/* set everything possible except for mod dates */
kSetCatinformationMask = kFSCatInfoSettableInfo &
~(kFSCatInfoContentMod | kFSCatInfoAttrMod)
};
OSErr result;
FSCatalogInfo sourceCatalogInfo; /* source file's catalog information */
FSCatalogInfo destCatalogInfo; /* destination file's catalog information */
HFSUniStr255 sourceName; /* source file's Unicode name */
HFSUniStr255 destName; /* destination file's Unicode name */
FSRef sourceCurrentRef; /* FSRef to current location of source file throughout this function */
FSRef destCurrentRef; /* FSRef to current location of destination file throughout this function */
FSRef sourceParentRef; /* FSRef to parent directory of source file */
FSRef destParentRef; /* FSRef to parent directory of destination file */
HFSUniStr255 sourceUniqueName; /* unique name given to source file while exchanging it with destination */
HFSUniStr255 destUniqueName; /* unique name given to destination file while exchanging it with source */
long theSeed; /* the seed for generating unique names */
Boolean sameParentDirs; /* true if source and destinatin parent directory is the same */
/* check parameters */
require_action((NULL != newSourceRef) && (NULL != newDestRef), BadParameter, result = paramErr);
/* output refs and current refs = input refs to start with */
memcpy(newSourceRef, sourceRef, sizeof(FSRef));
memcpy(&sourceCurrentRef, sourceRef, sizeof(FSRef));
memcpy(newDestRef, destRef, sizeof(FSRef));
memcpy(&destCurrentRef, destRef, sizeof(FSRef));
/* Note: The compatibility case won't work for files with *Btree control blocks. */
/* Right now the only *Btree files are created by the system. */
/* get all catalog information and Unicode names for each file */
result = FSGetCatalogInfo(&sourceCurrentRef, kGetCatInformationMask, &sourceCatalogInfo, &sourceName, NULL, &sourceParentRef);
require_noerr(result, SourceFSGetCatalogInfoFailed);
result = FSGetCatalogInfo(&destCurrentRef, kGetCatInformationMask, &destCatalogInfo, &destName, NULL, &destParentRef);
require_noerr(result, DestFSGetCatalogInfoFailed);
/* make sure source and destination are on same volume */
require_action(sourceCatalogInfo.volume == destCatalogInfo.volume, NotSameVolume, result = diffVolErr);
/* make sure both files are *really* files */
require_action((0 == (sourceCatalogInfo.nodeFlags & kFSNodeIsDirectoryMask)) &&
(0 == (destCatalogInfo.nodeFlags & kFSNodeIsDirectoryMask)), NotAFile, result = notAFileErr);
/* generate 2 names that are unique in both directories */
theSeed = 0x4a696d4c; /* a fine unlikely filename */
result = GenerateUniqueHFSUniStr(&theSeed, &sourceParentRef, &destParentRef, &sourceUniqueName);
require_noerr(result, GenerateUniqueHFSUniStr1Failed);
result = GenerateUniqueHFSUniStr(&theSeed, &sourceParentRef, &destParentRef, &destUniqueName);
require_noerr(result, GenerateUniqueHFSUniStr2Failed);
/* rename sourceCurrentRef to sourceUniqueName */
result = FSRenameUnicode(&sourceCurrentRef, sourceUniqueName.length, sourceUniqueName.unicode, kTextEncodingUnknown, newSourceRef);
require_noerr(result, FSRenameUnicode1Failed);
memcpy(&sourceCurrentRef, newSourceRef, sizeof(FSRef));
/* rename destCurrentRef to destUniqueName */
result = FSRenameUnicode(&destCurrentRef, destUniqueName.length, destUniqueName.unicode, kTextEncodingUnknown, newDestRef);
require_noerr(result, FSRenameUnicode2Failed);
memcpy(&destCurrentRef, newDestRef, sizeof(FSRef));
/* are the source and destination parent directories the same? */
sameParentDirs = ( sourceCatalogInfo.parentDirID == destCatalogInfo.parentDirID );
if ( !sameParentDirs )
{
/* move source file to dest parent directory */
result = FSMoveObject(&sourceCurrentRef, &destParentRef, newSourceRef);
require_noerr(result, FSMoveObject1Failed);
memcpy(&sourceCurrentRef, newSourceRef, sizeof(FSRef));
/* move dest file to source parent directory */
result = FSMoveObject(&destCurrentRef, &sourceParentRef, newDestRef);
require_noerr(result, FSMoveObject2Failed);
memcpy(&destCurrentRef, newDestRef, sizeof(FSRef));
}
/* At this point, the files are in their new locations (if they were moved). */
/* The source file is named sourceUniqueName and is in the directory referred to */
/* by destParentRef. The destination file is named destUniqueName and is in the */
/* directory referred to by sourceParentRef. */
/* give source file the dest file's catalog information except for mod dates */
result = FSSetCatalogInfo(&sourceCurrentRef, kSetCatinformationMask, &destCatalogInfo);
require_noerr(result, FSSetCatalogInfo1Failed);
/* give dest file the source file's catalog information except for mod dates */
result = FSSetCatalogInfo(&destCurrentRef, kSetCatinformationMask, &sourceCatalogInfo);
require_noerr(result, FSSetCatalogInfo2Failed);
/* rename source file with dest file's name */
result = FSRenameUnicode(&sourceCurrentRef, destName.length, destName.unicode, destCatalogInfo.textEncodingHint, newSourceRef);
require_noerr(result, FSRenameUnicode3Failed);
memcpy(&sourceCurrentRef, newSourceRef, sizeof(FSRef));
/* rename dest file with source file's name */
result = FSRenameUnicode(&destCurrentRef, sourceName.length, sourceName.unicode, sourceCatalogInfo.textEncodingHint, newDestRef);
require_noerr(result, FSRenameUnicode4Failed);
/* we're done with no errors, so swap newSourceRef and newDestRef */
memcpy(newSourceRef, newDestRef, sizeof(FSRef));
memcpy(newDestRef, &sourceCurrentRef, sizeof(FSRef));
return ( result );
/**********************/
/* If there are any failures while emulating FSExchangeObjects, attempt to reverse any steps */
/* already taken. In any case, newSourceRef and newDestRef will refer to the files in whatever */
/* state and location they ended up in so that both files can be found by the calling code. */
FSRenameUnicode4Failed:
/* attempt to rename source file to sourceUniqueName */
if ( noErr == FSRenameUnicode(&sourceCurrentRef, sourceUniqueName.length, sourceUniqueName.unicode, kTextEncodingUnknown, newSourceRef) )
{
memcpy(&sourceCurrentRef, newSourceRef, sizeof(FSRef));
}
FSRenameUnicode3Failed:
/* attempt to restore dest file's catalog information */
verify_noerr(FSSetCatalogInfo(&destCurrentRef, kFSCatInfoSettableInfo, &destCatalogInfo));
FSSetCatalogInfo2Failed:
/* attempt to restore source file's catalog information */
verify_noerr(FSSetCatalogInfo(&sourceCurrentRef, kFSCatInfoSettableInfo, &sourceCatalogInfo));
FSSetCatalogInfo1Failed:
if ( !sameParentDirs )
{
/* attempt to move dest file back to dest directory */
if ( noErr == FSMoveObject(&destCurrentRef, &destParentRef, newDestRef) )
{
memcpy(&destCurrentRef, newDestRef, sizeof(FSRef));
}
}
FSMoveObject2Failed:
if ( !sameParentDirs )
{
/* attempt to move source file back to source directory */
if ( noErr == FSMoveObject(&sourceCurrentRef, &sourceParentRef, newSourceRef) )
{
memcpy(&sourceCurrentRef, newSourceRef, sizeof(FSRef));
}
}
FSMoveObject1Failed:
/* attempt to rename dest file to original name */
verify_noerr(FSRenameUnicode(&destCurrentRef, destName.length, destName.unicode, destCatalogInfo.textEncodingHint, newDestRef));
FSRenameUnicode2Failed:
/* attempt to rename source file to original name */
verify_noerr(FSRenameUnicode(&sourceCurrentRef, sourceName.length, sourceName.unicode, sourceCatalogInfo.textEncodingHint, newSourceRef));
FSRenameUnicode1Failed:
GenerateUniqueHFSUniStr2Failed:
GenerateUniqueHFSUniStr1Failed:
NotAFile:
NotSameVolume:
DestFSGetCatalogInfoFailed:
SourceFSGetCatalogInfoFailed:
BadParameter:
return ( result );
}
