/*
** Apple Macintosh Developer Technical Support
**
** FSSpec compatibility functions.
**
** by Jim Luther, Apple Developer Technical Support Emeritus
**
** File: FSpCompat.c
**
** Copyright © 1992-1999 Apple Computer, Inc.
** All rights reserved.
**
** You may incorporate this sample code into your applications without
** restriction, though the sample code has been provided "AS IS" and the
** responsibility for its operation is 100% yours. However, what you are
** not permitted to do is to redistribute the source as "DSC Sample Code"
** after having made changes. If you're going to re-distribute the source,
** we require that you make it clear in the source that the code was
** descended from Apple Sample Code, but that you've made changes.
*/
/*
** If building application 68K code, set GENERATENODATA to 0 for faster code.
** If building stand-alone 68K code, set GENERATENODATA to 1 so globals
** (static variables) are not used.
*/
#ifndef GENERATENODATA
#define GENERATENODATA 0
#endif
#include <Types.h>
#include <Errors.h>
#include <LowMem.h>
#include <Gestalt.h>
#include <Resources.h>
#include <Script.h>
#define __COMPILINGMOREFILES
#include "MoreFilesExtras.h"
#include "FSpCompat.h"
/*****************************************************************************/
/* local constants */
enum {
gestaltBugFixAttrsTwo = 'bugy',
gestaltFSpExchangeFilesCompatibilityFix = 26,
gestaltBugFixAttrsThree = 'bugx',
gestaltFSpCreateScriptSupportFix = 1
};
/*****************************************************************************/
/* static prototypes */
#if !__MACOSSEVENORLATER
static Boolean FSHasFSSpecCalls(void);
static Boolean QTHasFSSpecCalls(void);
#endif /* !__MACOSSEVENORLATER */
#if !__MACOSSEVENFIVEORLATER
static Boolean HasFSpExchangeFilesCompatibilityFix(void);
static OSErr GenerateUniqueName(short volume,
long *startSeed,
long dir1,
long dir2,
StringPtr uniqueName);
#endif /* !__MACOSSEVENFIVEORLATER */
#if !__MACOSSEVENFIVEONEORLATER
static Boolean HasFSpCreateScriptSupportFix(void);
#endif /* !__MACOSSEVENFIVEONEORLATER */
/*****************************************************************************/
/* FSHasFSSpecCalls returns true if the file system provides FSSpec calls. */
#if !__MACOSSEVENORLATER
static Boolean FSHasFSSpecCalls(void)
{
long response;
#if !GENERATENODATA
static Boolean tested = false;
static Boolean result = false;
#else
Boolean result = false;
#endif
#if !GENERATENODATA
if ( !tested )
{
tested = true;
#endif
if ( Gestalt(gestaltFSAttr, &response) == noErr )
{
result = ((response & (1L << gestaltHasFSSpecCalls)) != 0);
}
#if !GENERATENODATA
}
#endif
return ( result );
}
#endif /* !__MACOSSEVENORLATER */
/*****************************************************************************/
/* QTHasFSSpecCalls returns true if QuickTime provides FSSpec calls */
/* except for FSpExchangeFiles. */
#if !__MACOSSEVENORLATER
static Boolean QTHasFSSpecCalls(void)
{
long response;
#if !GENERATENODATA
static Boolean tested = false;
static Boolean result = false;
#else
Boolean result = false;
#endif
#if !GENERATENODATA
if ( !tested )
{
tested = true;
#endif
result = (Gestalt(gestaltQuickTimeVersion, &response) == noErr);
#if !GENERATENODATA
}
#endif
return ( result );
}
#endif /* !__MACOSSEVENORLATER */
/*****************************************************************************/
/* HasFSpExchangeFilesCompatibilityFix returns true if FSpExchangeFiles */
/* compatibility code has been fixed in system software. */
/* This was fixed by System Update 3.0, so if SystemSevenFiveOrLater */
/* is true, then we know the fix is in. */
#if !__MACOSSEVENFIVEORLATER
static Boolean HasFSpExchangeFilesCompatibilityFix(void)
{
long response;
#if !GENERATENODATA
static Boolean tested = false;
static Boolean result = false;
#else /* !GENERATENODATA */
Boolean result = false;
#endif /* !GENERATENODATA */
#if !GENERATENODATA
if ( !tested )
{
tested = true;
#endif /* !GENERATENODATA */
if ( Gestalt(gestaltBugFixAttrsTwo, &response) == noErr )
{
result = ((response & (1L << gestaltFSpExchangeFilesCompatibilityFix)) != 0);
}
#if !GENERATENODATA
}
#endif /* !GENERATENODATA */
return ( result );
}
#endif /* !__MACOSSEVENFIVEORLATER */
/*****************************************************************************/
/* HasFSpCreateScriptSupportFix returns true if FSpCreate and */
/* FSpCreateResFile have been fixed in system software to correctly set */
/* the scriptCode in the volume's catalog. */
/* This was fixed by System 7.5 Update 1.0 */
#if !__MACOSSEVENFIVEONEORLATER
static Boolean HasFSpCreateScriptSupportFix(void)
{
long response;
#if !GENERATENODATA
static Boolean tested = false;
static Boolean result = false;
#else
Boolean result = false;
#endif /* !GENERATENODATA */
#if !GENERATENODATA
if ( !tested )
{
tested = true;
#endif /* !GENERATENODATA */
if ( Gestalt(gestaltBugFixAttrsThree, &response) == noErr )
{
result = ((response & (1L << gestaltFSpCreateScriptSupportFix)) != 0);
}
#if !GENERATENODATA
}
#endif /* !GENERATENODATA */
return ( result );
}
#endif /* !__MACOSSEVENFIVEONEORLATER */
/*****************************************************************************/
/*
** File Manager FSp calls
*/
/*****************************************************************************/
pascal OSErr FSMakeFSSpecCompat(short vRefNum,
long dirID,
ConstStr255Param fileName,
FSSpec *spec)
{
OSErr result;
#if !__MACOSSEVENORLATER
if ( !FSHasFSSpecCalls() && !QTHasFSSpecCalls() )
{
Boolean isDirectory;
result = GetObjectLocation(vRefNum, dirID, fileName,
&(spec->vRefNum), &(spec->parID), spec->name,
&isDirectory);
}
else
#endif /* !__MACOSSEVENORLATER */
{
/* Let the file system create the FSSpec if it can since it does the job */
/* much more efficiently than I can. */
result = FSMakeFSSpec(vRefNum, dirID, fileName, spec);
/* Fix a bug in Macintosh PC Exchange's MakeFSSpec code where 0 is */
/* returned in the parID field when making an FSSpec to the volume's */
/* root directory by passing a full pathname in MakeFSSpec's */
/* fileName parameter. Fixed in Mac OS 8.1 */
if ( (result == noErr) && (spec->parID == 0) )
spec->parID = fsRtParID;
}
return ( result );
}
/*****************************************************************************/
pascal OSErr FSpOpenDFCompat(const FSSpec *spec,
char permission,
short *refNum)
{
#if !__MACOSSEVENORLATER
if ( !FSHasFSSpecCalls() && !QTHasFSSpecCalls() )
{
OSErr result;
HParamBlockRec pb;
pb.ioParam.ioVRefNum = spec->vRefNum;
pb.fileParam.ioDirID = spec->parID;
pb.ioParam.ioNamePtr = (StringPtr) &(spec->name);
pb.ioParam.ioVersNum = 0;
pb.ioParam.ioPermssn = permission;
pb.ioParam.ioMisc = NULL;
result = PBHOpenSync(&pb); /* OpenDF not supported by System 6, so use Open */
*refNum = pb.ioParam.ioRefNum;
return ( result );
}
else
#endif /* !__MACOSSEVENORLATER */
{
return ( FSpOpenDF(spec, permission, refNum) );
}
}
/*****************************************************************************/
pascal OSErr FSpOpenRFCompat(const FSSpec *spec,
char permission,
short *refNum)
{
#if !__MACOSSEVENORLATER
if ( !FSHasFSSpecCalls() && !QTHasFSSpecCalls() )
{
OSErr result;
HParamBlockRec pb;
pb.ioParam.ioVRefNum = spec->vRefNum;
pb.fileParam.ioDirID = spec->parID;
pb.ioParam.ioNamePtr = (StringPtr) &(spec->name);
pb.ioParam.ioVersNum = 0;
pb.ioParam.ioPermssn = permission;
pb.ioParam.ioMisc = NULL;
result = PBHOpenRFSync(&pb);
*refNum = pb.ioParam.ioRefNum;
return ( result );
}
else
#endif /* !__MACOSSEVENORLATER */
{
return ( FSpOpenRF(spec, permission, refNum) );
}
}
/*****************************************************************************/
pascal OSErr FSpCreateCompat(const FSSpec *spec,
OSType creator,
OSType fileType,
ScriptCode scriptTag)
{
#if !__MACOSSEVENFIVEONEORLATER
OSErr result;
UniversalFMPB pb;
if (
#if !__MACOSSEVENORLATER
(!FSHasFSSpecCalls() && !QTHasFSSpecCalls()) ||
#endif /* !__MACOSSEVENORLATER */
!HasFSpCreateScriptSupportFix() )
{
/* If FSpCreate isn't called, this code will be executed */
pb.hPB.fileParam.ioVRefNum = spec->vRefNum;
pb.hPB.fileParam.ioDirID = spec->parID;
pb.hPB.fileParam.ioNamePtr = (StringPtr) &(spec->name);
pb.hPB.fileParam.ioFVersNum = 0;
result = PBHCreateSync(&(pb.hPB));
if ( result == noErr )
{
/* get info on created item */
pb.ciPB.hFileInfo.ioFDirIndex = 0;
result = PBGetCatInfoSync(&(pb.ciPB));
if ( result == noErr )
{
/* Set fdScript in FXInfo */
/* The negative script constants (smSystemScript, smCurrentScript, and smAllScripts) */
/* don't make sense on disk, so only use scriptTag if scriptTag >= smRoman */
/* (smRoman is 0). fdScript is valid if high bit is set (see IM-6, page 9-38) */
pb.ciPB.hFileInfo.ioFlXFndrInfo.fdScript = (scriptTag >= smRoman) ?
((char)scriptTag | (char)0x80) :
(smRoman);
/* Set creator/fileType */
pb.ciPB.hFileInfo.ioFlFndrInfo.fdCreator = creator;
pb.ciPB.hFileInfo.ioFlFndrInfo.fdType = fileType;
/* Restore ioDirID field in pb which was changed by PBGetCatInfo */
pb.ciPB.hFileInfo.ioDirID = spec->parID;
result = PBSetCatInfoSync(&(pb.ciPB));
}
}
return ( result );
}
else
#endif /* !__MACOSSEVENFIVEONEORLATER */
{
return ( FSpCreate(spec, creator, fileType, scriptTag) );
}
}
/*****************************************************************************/
pascal OSErr FSpDirCreateCompat(const FSSpec *spec,
ScriptCode scriptTag,
long *createdDirID)
{
#if !__MACOSSEVENORLATER
if ( !FSHasFSSpecCalls() && !QTHasFSSpecCalls() )
{
OSErr result;
UniversalFMPB pb;
pb.hPB.fileParam.ioVRefNum = spec->vRefNum;
pb.hPB.fileParam.ioDirID = spec->parID;
pb.hPB.fileParam.ioNamePtr = (StringPtr) &(spec->name);
result = PBDirCreateSync(&(pb.hPB));
*createdDirID = pb.hPB.fileParam.ioDirID;
if ( result == noErr )
{
/* get info on created item */
pb.ciPB.dirInfo.ioFDirIndex = 0;
pb.ciPB.dirInfo.ioDrDirID = spec->parID;
result = PBGetCatInfoSync(&(pb.ciPB));
if ( result == noErr )
{
/* Set frScript in DXInfo */
/* The negative script constants (smSystemScript, smCurrentScript, and smAllScripts) */
/* don't make sense on disk, so only use scriptTag if scriptTag >= smRoman */
/* (smRoman is 0). frScript is valid if high bit is set (see IM-6, page 9-38) */
pb.ciPB.dirInfo.ioDrFndrInfo.frScript = (scriptTag >= smRoman) ?
((char)scriptTag | (char)0x80) :
(smRoman);
/* Restore ioDirID field in pb which was changed by PBGetCatInfo */
pb.ciPB.dirInfo.ioDrDirID = spec->parID;
result = PBSetCatInfoSync(&(pb.ciPB));
}
}
return ( result );
}
else
#endif /* !__MACOSSEVENORLATER */
{
return ( FSpDirCreate(spec, scriptTag, createdDirID) );
}
}
/*****************************************************************************/
pascal OSErr FSpDeleteCompat(const FSSpec *spec)
{
#if !__MACOSSEVENORLATER
if ( !FSHasFSSpecCalls() && !QTHasFSSpecCalls() )
{
HParamBlockRec pb;
pb.ioParam.ioVRefNum = spec->vRefNum;
pb.fileParam.ioDirID = spec->parID;
pb.ioParam.ioNamePtr = (StringPtr) &(spec->name);
pb.ioParam.ioVersNum = 0;
return ( PBHDeleteSync(&pb) );
}
else
#endif /* !__MACOSSEVENORLATER */
{
return ( FSpDelete(spec) );
}
}
/*****************************************************************************/
pascal OSErr FSpGetFInfoCompat(const FSSpec *spec,
FInfo *fndrInfo)
{
#if !__MACOSSEVENORLATER
if ( !FSHasFSSpecCalls() && !QTHasFSSpecCalls() )
{
OSErr result;
HParamBlockRec pb;
pb.fileParam.ioVRefNum = spec->vRefNum;
pb.fileParam.ioDirID = spec->parID;
pb.fileParam.ioNamePtr = (StringPtr) &(spec->name);
pb.fileParam.ioFVersNum = 0;
pb.fileParam.ioFDirIndex = 0;
result = PBHGetFInfoSync(&pb);
*fndrInfo = pb.fileParam.ioFlFndrInfo;
return ( result );
}
else
#endif /* !__MACOSSEVENORLATER */
{
return ( FSpGetFInfo(spec, fndrInfo) );
}
}
/*****************************************************************************/
pascal OSErr FSpSetFInfoCompat(const FSSpec *spec,
const FInfo *fndrInfo)
{
#if !__MACOSSEVENORLATER
if ( !FSHasFSSpecCalls() && !QTHasFSSpecCalls() )
{
OSErr result;
HParamBlockRec pb;
pb.fileParam.ioVRefNum = spec->vRefNum;
pb.fileParam.ioDirID = spec->parID;
pb.fileParam.ioNamePtr = (StringPtr) &(spec->name);
pb.fileParam.ioFVersNum = 0;
pb.fileParam.ioFDirIndex = 0;
result = PBHGetFInfoSync(&pb);
if ( result == noErr )
{
pb.fileParam.ioFlFndrInfo = *fndrInfo;
pb.fileParam.ioDirID = spec->parID;
result = PBHSetFInfoSync(&pb);
}
return ( result );
}
else
#endif /* !__MACOSSEVENORLATER */
{
return ( FSpSetFInfo(spec, fndrInfo) );
}
}
/*****************************************************************************/
pascal OSErr FSpSetFLockCompat(const FSSpec *spec)
{
#if !__MACOSSEVENORLATER
if ( !FSHasFSSpecCalls() && !QTHasFSSpecCalls() )
{
HParamBlockRec pb;
pb.fileParam.ioVRefNum = spec->vRefNum;
pb.fileParam.ioDirID = spec->parID;
pb.fileParam.ioNamePtr = (StringPtr) &(spec->name);
pb.fileParam.ioFVersNum = 0;
return ( PBHSetFLockSync(&pb) );
}
else
#endif /* !__MACOSSEVENORLATER */
{
return ( FSpSetFLock(spec) );
}
}
/*****************************************************************************/
pascal OSErr FSpRstFLockCompat(const FSSpec *spec)
{
#if !__MACOSSEVENORLATER
if ( !FSHasFSSpecCalls() && !QTHasFSSpecCalls() )
{
HParamBlockRec pb;
pb.fileParam.ioVRefNum = spec->vRefNum;
pb.fileParam.ioDirID = spec->parID;
pb.fileParam.ioNamePtr = (StringPtr) &(spec->name);
pb.fileParam.ioFVersNum = 0;
return ( PBHRstFLockSync(&pb) );
}
else
#endif /* !__MACOSSEVENORLATER */
{
return ( FSpRstFLock(spec) );
}
}
/*****************************************************************************/
pascal OSErr FSpRenameCompat(const FSSpec *spec,
ConstStr255Param newName)
{
#if !__MACOSSEVENORLATER
if ( !FSHasFSSpecCalls() && !QTHasFSSpecCalls() )
{
HParamBlockRec pb;
pb.ioParam.ioVRefNum = spec->vRefNum;
pb.fileParam.ioDirID = spec->parID;
pb.ioParam.ioNamePtr = (StringPtr) &(spec->name);
pb.ioParam.ioVersNum = 0;
pb.ioParam.ioMisc = (Ptr) newName;
return ( PBHRenameSync(&pb) );
}
else
#endif /* !__MACOSSEVENORLATER */
{
return ( FSpRename(spec, newName) );
}
}
/*****************************************************************************/
pascal OSErr FSpCatMoveCompat(const FSSpec *source,
const FSSpec *dest)
{
#if !__MACOSSEVENORLATER
if ( !FSHasFSSpecCalls() && !QTHasFSSpecCalls() )
{
CMovePBRec pb;
/* source and destination volume must be the same */
if ( source->vRefNum != dest->vRefNum )
return ( paramErr );
pb.ioNamePtr = (StringPtr) &(source->name);
pb.ioVRefNum = source->vRefNum;
pb.ioDirID = source->parID;
pb.ioNewDirID = dest->parID;
pb.ioNewName = (StringPtr) &(dest->name);
return ( PBCatMoveSync(&pb) );
}
else
#endif /* !__MACOSSEVENORLATER */
{
return ( FSpCatMove(source, dest) );
}
}
/*****************************************************************************/
/* GenerateUniqueName generates a name that is unique in both dir1 and dir2 */
/* on the specified volume. Ripped off from Feldman's code. */
#if !__MACOSSEVENFIVEORLATER
static OSErr GenerateUniqueName(short volume,
long *startSeed,
long dir1,
long dir2,
StringPtr uniqueName)
{
OSErr error = noErr;
long i;
CInfoPBRec cinfo;
unsigned char hexStr[16];
for ( i = 0; i < 16; ++i )
{
if ( i < 10 )
{
hexStr[i] = 0x30 + i;
}
else
{
hexStr[i] = 0x37 + i;
}
}
cinfo.hFileInfo.ioVRefNum = volume;
cinfo.hFileInfo.ioFDirIndex = 0;
cinfo.hFileInfo.ioNamePtr = uniqueName;
while ( error != fnfErr )
{
(*startSeed)++;
cinfo.hFileInfo.ioNamePtr[0] = 8;
for ( i = 1; i <= 8; i++ )
{
cinfo.hFileInfo.ioNamePtr[i] = hexStr[((*startSeed >> ((8-i)*4)) & 0xf)];
}
cinfo.hFileInfo.ioDirID = dir1;
error = fnfErr;
for ( i = 1; i <= 2; i++ )
{
error = error & PBGetCatInfoSync(&cinfo);
cinfo.hFileInfo.ioDirID = dir2;
if ( (error != fnfErr) && (error != noErr) )
{
return ( error );
}
}
}
return ( noErr );
}
#endif /* !__MACOSSEVENFIVEORLATER */
/*****************************************************************************/
pascal OSErr FSpExchangeFilesCompat(const FSSpec *source,
const FSSpec *dest)
{
#if !__MACOSSEVENFIVEORLATER
if (
#if !__MACOSSEVENORLATER
!FSHasFSSpecCalls() ||
#endif /* !__MACOSSEVENORLATER */
!HasFSpExchangeFilesCompatibilityFix() )
{
HParamBlockRec pb;
CInfoPBRec catInfoSource, catInfoDest;
OSErr result, result2;
Str31 unique1, unique2;
StringPtr unique1Ptr, unique2Ptr, swapola;
GetVolParmsInfoBuffer volInfo;
long theSeed, temp;
/* Make sure the source and destination are on the same volume */
if ( source->vRefNum != dest->vRefNum )
{
result = diffVolErr;
goto errorExit3;
}
/* Try PBExchangeFiles first since it preserves the file ID reference */
pb.fidParam.ioNamePtr = (StringPtr) &(source->name);
pb.fidParam.ioVRefNum = source->vRefNum;
pb.fidParam.ioDestNamePtr = (StringPtr) &(dest->name);
pb.fidParam.ioDestDirID = dest->parID;
pb.fidParam.ioSrcDirID = source->parID;
result = PBExchangeFilesSync(&pb);
/* Note: The compatibility case won't work for files with *Btree control blocks. */
/* Right now the only *Btree files are created by the system. */
if ( result != noErr )
{
pb.ioParam.ioNamePtr = NULL;
pb.ioParam.ioBuffer = (Ptr) &volInfo;
pb.ioParam.ioReqCount = sizeof(volInfo);
result2 = PBHGetVolParmsSync(&pb);
/* continue if volume has no fileID support (or no GetVolParms support) */
if ( (result2 == noErr) && hasFileIDs(volInfo) )
{
goto errorExit3;
}
/* Get the catalog information for each file */
/* and make sure both files are *really* files */
catInfoSource.hFileInfo.ioVRefNum = source->vRefNum;
catInfoSource.hFileInfo.ioFDirIndex = 0;
catInfoSource.hFileInfo.ioNamePtr = (StringPtr) &(source->name);
catInfoSource.hFileInfo.ioDirID = source->parID;
catInfoSource.hFileInfo.ioACUser = 0; /* ioACUser used to be filler2 */
result = PBGetCatInfoSync(&catInfoSource);
if ( result != noErr )
{
goto errorExit3;
}
if ( (catInfoSource.hFileInfo.ioFlAttrib & kioFlAttribDirMask) != 0 )
{
result = notAFileErr;
goto errorExit3;
}
catInfoDest.hFileInfo.ioVRefNum = dest->vRefNum;
catInfoDest.hFileInfo.ioFDirIndex = 0;
catInfoDest.hFileInfo.ioNamePtr = (StringPtr) &(dest->name);
catInfoDest.hFileInfo.ioDirID = dest->parID;
catInfoDest.hFileInfo.ioACUser = 0; /* ioACUser used to be filler2 */
result = PBGetCatInfoSync(&catInfoDest);
if ( result != noErr )
{
goto errorExit3;
}
if ( (catInfoDest.hFileInfo.ioFlAttrib & kioFlAttribDirMask) != 0 )
{
result = notAFileErr;
goto errorExit3;
}
/* generate 2 filenames that are unique in both directories */
theSeed = 0x64666A6C; /* a fine unlikely filename */
unique1Ptr = (StringPtr)&unique1;
unique2Ptr = (StringPtr)&unique2;
result = GenerateUniqueName(source->vRefNum, &theSeed, source->parID, dest->parID, unique1Ptr);
if ( result != noErr )
{
goto errorExit3;
}
GenerateUniqueName(source->vRefNum, &theSeed, source->parID, dest->parID, unique2Ptr);
if ( result != noErr )
{
goto errorExit3;
}
/* rename source to unique1 */
pb.fileParam.ioNamePtr = (StringPtr) &(source->name);
pb.ioParam.ioMisc = (Ptr) unique1Ptr;
pb.ioParam.ioVersNum = 0;
result = PBHRenameSync(&pb);
if ( result != noErr )
{
goto errorExit3;
}
/* rename dest to unique2 */
pb.ioParam.ioMisc = (Ptr) unique2Ptr;
pb.ioParam.ioVersNum = 0;
pb.fileParam.ioNamePtr = (StringPtr) &(dest->name);
pb.fileParam.ioDirID = dest->parID;
result = PBHRenameSync(&pb);
if ( result != noErr )
{
goto errorExit2; /* back out gracefully by renaming unique1 back to source */
}
/* If files are not in same directory, swap their locations */
if ( source->parID != dest->parID )
{
/* move source file to dest directory */
pb.copyParam.ioNamePtr = unique1Ptr;
pb.copyParam.ioNewName = NULL;
pb.copyParam.ioNewDirID = dest->parID;
pb.copyParam.ioDirID = source->parID;
result = PBCatMoveSync((CMovePBPtr) &pb);
if ( result != noErr )
{
goto errorExit1; /* back out gracefully by renaming both files to original names */
}
/* move dest file to source directory */
pb.copyParam.ioNamePtr = unique2Ptr;
pb.copyParam.ioNewDirID = source->parID;
pb.copyParam.ioDirID = dest->parID;
result = PBCatMoveSync((CMovePBPtr) &pb);
if ( result != noErr)
{
/* life is very bad. We'll at least try to move source back */
pb.copyParam.ioNamePtr = unique1Ptr;
pb.copyParam.ioNewName = NULL;
pb.copyParam.ioNewDirID = source->parID;
pb.copyParam.ioDirID = dest->parID;
(void) PBCatMoveSync((CMovePBPtr) &pb); /* ignore errors */
goto errorExit1; /* back out gracefully by renaming both files to original names */
}
}
/* Make unique1Ptr point to file in source->parID */
/* and unique2Ptr point to file in dest->parID */
/* This lets us fall through to the rename code below */
swapola = unique1Ptr;
unique1Ptr = unique2Ptr;
unique2Ptr = swapola;
/* At this point, the files are in their new locations (if they were moved) */
/* Source is named Unique1 (name pointed to by unique2Ptr) and is in dest->parID */
/* Dest is named Unique2 (name pointed to by unique1Ptr) and is in source->parID */
/* Need to swap attributes except mod date and swap names */
/* swap the catalog info by re-aiming the CInfoPB's */
catInfoSource.hFileInfo.ioNamePtr = unique1Ptr;
catInfoDest.hFileInfo.ioNamePtr = unique2Ptr;
catInfoSource.hFileInfo.ioDirID = source->parID;
catInfoDest.hFileInfo.ioDirID = dest->parID;
/* Swap the original mod dates with each file */
temp = catInfoSource.hFileInfo.ioFlMdDat;
catInfoSource.hFileInfo.ioFlMdDat = catInfoDest.hFileInfo.ioFlMdDat;
catInfoDest.hFileInfo.ioFlMdDat = temp;
/* Here's the swap (ignore errors) */
(void) PBSetCatInfoSync(&catInfoSource);
(void) PBSetCatInfoSync(&catInfoDest);
/* rename unique2 back to dest */
errorExit1:
pb.ioParam.ioMisc = (Ptr) &(dest->name);
pb.ioParam.ioVersNum = 0;
pb.fileParam.ioNamePtr = unique2Ptr;
pb.fileParam.ioDirID = dest->parID;
(void) PBHRenameSync(&pb); /* ignore errors */
/* rename unique1 back to source */
errorExit2:
pb.ioParam.ioMisc = (Ptr) &(source->name);
pb.ioParam.ioVersNum = 0;
pb.fileParam.ioNamePtr = unique1Ptr;
pb.fileParam.ioDirID = source->parID;
(void) PBHRenameSync(&pb); /* ignore errors */
}
errorExit3: { /* null statement */ }
return ( result );
}
else
#endif /* !__MACOSSEVENFIVEORLATER */
{
return ( FSpExchangeFiles(source, dest) );
}
}
/*****************************************************************************/
/*
** Resource Manager FSp calls
*/
/*****************************************************************************/
pascal short FSpOpenResFileCompat(const FSSpec *spec,
SignedByte permission)
{
#if !__MACOSSEVENORLATER
if ( !FSHasFSSpecCalls() && !QTHasFSSpecCalls() )
{
return ( HOpenResFile(spec->vRefNum, spec->parID, spec->name, permission) );
}
else
#endif /* !__MACOSSEVENORLATER */
{
return ( FSpOpenResFile(spec, permission) );
}
}
/*****************************************************************************/
pascal void FSpCreateResFileCompat(const FSSpec *spec,
OSType creator,
OSType fileType,
ScriptCode scriptTag)
{
#if !__MACOSSEVENFIVEONEORLATER
if (
#if !__MACOSSEVENORLATER
(!FSHasFSSpecCalls() && !QTHasFSSpecCalls()) ||
#endif /* !__MACOSSEVENORLATER */
!HasFSpCreateScriptSupportFix() )
{
OSErr result;
CInfoPBRec pb;
HCreateResFile(spec->vRefNum, spec->parID, spec->name);
if ( ResError() == noErr )
{
/* get info on created item */
pb.hFileInfo.ioVRefNum = spec->vRefNum;
pb.hFileInfo.ioDirID = spec->parID;
pb.hFileInfo.ioNamePtr = (StringPtr) &(spec->name);
pb.hFileInfo.ioFDirIndex = 0;
result = PBGetCatInfoSync(&pb);
if ( result == noErr )
{
/* Set fdScript in FXInfo */
/* The negative script constants (smSystemScript, smCurrentScript, and smAllScripts) */
/* don't make sense on disk, so only use scriptTag if scriptTag >= smRoman */
/* (smRoman is 0). fdScript is valid if high bit is set (see IM-6, page 9-38) */
pb.hFileInfo.ioFlXFndrInfo.fdScript = (scriptTag >= smRoman) ?
((char)scriptTag | (char)0x80) :
(smRoman);
/* Set creator/fileType */
pb.hFileInfo.ioFlFndrInfo.fdCreator = creator;
pb.hFileInfo.ioFlFndrInfo.fdType = fileType;
/* Restore ioDirID field in pb which was changed by PBGetCatInfo */
pb.hFileInfo.ioDirID = spec->parID;
result = PBSetCatInfoSync(&pb);
}
/* Set ResErr low memory global to result */
LMSetResErr(result);
}
return;
}
else
#endif /* !__MACOSSEVENFIVEONEORLATER */
{
FSpCreateResFile(spec, creator, fileType, scriptTag);
return;
}
}
/*****************************************************************************/