mirror of
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1 line
26 KiB
C
Executable File
1 line
26 KiB
C
Executable File
/*
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File: FSpCompat.c
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Contains: FSSpec compatibility functions.
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Version: MoreFiles
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Copyright: © 1992-2001 by Apple Computer, Inc., all rights reserved.
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You may incorporate this sample code into your applications without
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restriction, though the sample code has been provided "AS IS" and the
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responsibility for its operation is 100% yours. However, what you are
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not permitted to do is to redistribute the source as "DSC Sample Code"
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after having made changes. If you're going to re-distribute the source,
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we require that you make it clear in the source that the code was
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descended from Apple Sample Code, but that you've made changes.
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File Ownership:
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DRI: Apple Macintosh Developer Technical Support
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Other Contact: Apple Macintosh Developer Technical Support
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<http://developer.apple.com/bugreporter/>
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Technology: DTS Sample Code
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Writers:
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(JL) Jim Luther
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Change History (most recent first):
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<2> 2/7/01 JL Added standard header. Updated names of includes. Updated
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various routines to use new calling convention of the
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MoreFilesExtras accessor functions.
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<1> 12/06/99 JL MoreFiles 1.5.
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*/
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/*
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** If building application 68K code, set GENERATENODATA to 0 for faster code.
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** If building stand-alone 68K code, set GENERATENODATA to 1 so globals
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** (static variables) are not used.
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*/
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#ifndef GENERATENODATA
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#define GENERATENODATA 0
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#endif
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#include <MacTypes.h>
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#include <MacErrors.h>
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#include <Files.h>
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#include <LowMem.h>
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#include <Gestalt.h>
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#include <Resources.h>
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#include <Script.h>
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#define __COMPILINGMOREFILES
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#include "MoreFilesExtras.h"
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#include "FSpCompat.h"
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/*****************************************************************************/
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/* local constants */
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enum {
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gestaltBugFixAttrsTwo = 'bugy',
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gestaltFSpExchangeFilesCompatibilityFix = 26,
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gestaltBugFixAttrsThree = 'bugx',
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gestaltFSpCreateScriptSupportFix = 1
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};
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/*****************************************************************************/
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/* static prototypes */
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#if !__MACOSSEVENORLATER
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static Boolean FSHasFSSpecCalls(void);
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static Boolean QTHasFSSpecCalls(void);
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#endif /* !__MACOSSEVENORLATER */
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#if !__MACOSSEVENFIVEORLATER
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static Boolean HasFSpExchangeFilesCompatibilityFix(void);
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static OSErr GenerateUniqueName(short volume,
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long *startSeed,
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long dir1,
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long dir2,
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StringPtr uniqueName);
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#endif /* !__MACOSSEVENFIVEORLATER */
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#if !__MACOSSEVENFIVEONEORLATER
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static Boolean HasFSpCreateScriptSupportFix(void);
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#endif /* !__MACOSSEVENFIVEONEORLATER */
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/*****************************************************************************/
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/* FSHasFSSpecCalls returns true if the file system provides FSSpec calls. */
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#if !__MACOSSEVENORLATER
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static Boolean FSHasFSSpecCalls(void)
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{
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long response;
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#if !GENERATENODATA
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static Boolean tested = false;
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static Boolean result = false;
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#else
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Boolean result = false;
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#endif
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#if !GENERATENODATA
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if ( !tested )
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{
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tested = true;
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#endif
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if ( Gestalt(gestaltFSAttr, &response) == noErr )
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{
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result = ((response & (1L << gestaltHasFSSpecCalls)) != 0);
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}
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#if !GENERATENODATA
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}
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#endif
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return ( result );
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}
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#endif /* !__MACOSSEVENORLATER */
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/*****************************************************************************/
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/* QTHasFSSpecCalls returns true if QuickTime provides FSSpec calls */
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/* except for FSpExchangeFiles. */
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#if !__MACOSSEVENORLATER
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static Boolean QTHasFSSpecCalls(void)
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{
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long response;
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#if !GENERATENODATA
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static Boolean tested = false;
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static Boolean result = false;
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#else
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Boolean result = false;
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#endif
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#if !GENERATENODATA
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if ( !tested )
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{
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tested = true;
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#endif
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result = (Gestalt(gestaltQuickTimeVersion, &response) == noErr);
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#if !GENERATENODATA
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}
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#endif
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return ( result );
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}
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#endif /* !__MACOSSEVENORLATER */
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/*****************************************************************************/
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/* HasFSpExchangeFilesCompatibilityFix returns true if FSpExchangeFiles */
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/* compatibility code has been fixed in system software. */
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/* This was fixed by System Update 3.0, so if SystemSevenFiveOrLater */
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/* is true, then we know the fix is in. */
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#if !__MACOSSEVENFIVEORLATER
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static Boolean HasFSpExchangeFilesCompatibilityFix(void)
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{
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long response;
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#if !GENERATENODATA
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static Boolean tested = false;
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static Boolean result = false;
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#else /* !GENERATENODATA */
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Boolean result = false;
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#endif /* !GENERATENODATA */
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#if !GENERATENODATA
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if ( !tested )
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{
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tested = true;
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#endif /* !GENERATENODATA */
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if ( Gestalt(gestaltBugFixAttrsTwo, &response) == noErr )
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{
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result = ((response & (1L << gestaltFSpExchangeFilesCompatibilityFix)) != 0);
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}
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#if !GENERATENODATA
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}
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#endif /* !GENERATENODATA */
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return ( result );
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}
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#endif /* !__MACOSSEVENFIVEORLATER */
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/*****************************************************************************/
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/* HasFSpCreateScriptSupportFix returns true if FSpCreate and */
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/* FSpCreateResFile have been fixed in system software to correctly set */
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/* the scriptCode in the volume's catalog. */
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/* This was fixed by System 7.5 Update 1.0 */
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#if !__MACOSSEVENFIVEONEORLATER
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static Boolean HasFSpCreateScriptSupportFix(void)
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{
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long response;
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#if !GENERATENODATA
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static Boolean tested = false;
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static Boolean result = false;
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#else
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Boolean result = false;
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#endif /* !GENERATENODATA */
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#if !GENERATENODATA
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if ( !tested )
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{
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tested = true;
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#endif /* !GENERATENODATA */
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if ( Gestalt(gestaltBugFixAttrsThree, &response) == noErr )
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{
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result = ((response & (1L << gestaltFSpCreateScriptSupportFix)) != 0);
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}
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#if !GENERATENODATA
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}
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#endif /* !GENERATENODATA */
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return ( result );
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}
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#endif /* !__MACOSSEVENFIVEONEORLATER */
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/*****************************************************************************/
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/*
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** File Manager FSp calls
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*/
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/*****************************************************************************/
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pascal OSErr FSMakeFSSpecCompat(short vRefNum,
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long dirID,
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ConstStr255Param fileName,
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FSSpec *spec)
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{
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OSErr result;
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#if !__MACOSSEVENORLATER
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if ( !FSHasFSSpecCalls() && !QTHasFSSpecCalls() )
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{
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Boolean isDirectory;
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result = GetObjectLocation(vRefNum, dirID, fileName,
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&(spec->vRefNum), &(spec->parID), spec->name,
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&isDirectory);
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}
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else
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#endif /* !__MACOSSEVENORLATER */
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{
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/* Let the file system create the FSSpec if it can since it does the job */
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/* much more efficiently than I can. */
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result = FSMakeFSSpec(vRefNum, dirID, fileName, spec);
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/* Fix a bug in Macintosh PC Exchange's MakeFSSpec code where 0 is */
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/* returned in the parID field when making an FSSpec to the volume's */
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/* root directory by passing a full pathname in MakeFSSpec's */
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/* fileName parameter. Fixed in Mac OS 8.1 */
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if ( (result == noErr) && (spec->parID == 0) )
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spec->parID = fsRtParID;
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}
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return ( result );
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}
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/*****************************************************************************/
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pascal OSErr FSpOpenDFCompat(const FSSpec *spec,
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char permission,
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short *refNum)
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{
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#if !__MACOSSEVENORLATER
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if ( !FSHasFSSpecCalls() && !QTHasFSSpecCalls() )
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{
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OSErr result;
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HParamBlockRec pb;
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pb.ioParam.ioVRefNum = spec->vRefNum;
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pb.fileParam.ioDirID = spec->parID;
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pb.ioParam.ioNamePtr = (StringPtr) &(spec->name);
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pb.ioParam.ioVersNum = 0;
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pb.ioParam.ioPermssn = permission;
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pb.ioParam.ioMisc = NULL;
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result = PBHOpenSync(&pb); /* OpenDF not supported by System 6, so use Open */
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*refNum = pb.ioParam.ioRefNum;
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return ( result );
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}
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else
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#endif /* !__MACOSSEVENORLATER */
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{
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return ( FSpOpenDF(spec, permission, refNum) );
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}
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}
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/*****************************************************************************/
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pascal OSErr FSpOpenRFCompat(const FSSpec *spec,
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char permission,
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short *refNum)
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{
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#if !__MACOSSEVENORLATER
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if ( !FSHasFSSpecCalls() && !QTHasFSSpecCalls() )
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{
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OSErr result;
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HParamBlockRec pb;
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pb.ioParam.ioVRefNum = spec->vRefNum;
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pb.fileParam.ioDirID = spec->parID;
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pb.ioParam.ioNamePtr = (StringPtr) &(spec->name);
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pb.ioParam.ioVersNum = 0;
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pb.ioParam.ioPermssn = permission;
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pb.ioParam.ioMisc = NULL;
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result = PBHOpenRFSync(&pb);
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*refNum = pb.ioParam.ioRefNum;
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return ( result );
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}
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else
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#endif /* !__MACOSSEVENORLATER */
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{
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return ( FSpOpenRF(spec, permission, refNum) );
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}
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}
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/*****************************************************************************/
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pascal OSErr FSpCreateCompat(const FSSpec *spec,
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OSType creator,
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OSType fileType,
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ScriptCode scriptTag)
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{
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#if !__MACOSSEVENFIVEONEORLATER
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OSErr result;
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UniversalFMPB pb;
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if (
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#if !__MACOSSEVENORLATER
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(!FSHasFSSpecCalls() && !QTHasFSSpecCalls()) ||
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#endif /* !__MACOSSEVENORLATER */
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!HasFSpCreateScriptSupportFix() )
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{
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/* If FSpCreate isn't called, this code will be executed */
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pb.hPB.fileParam.ioVRefNum = spec->vRefNum;
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pb.hPB.fileParam.ioDirID = spec->parID;
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pb.hPB.fileParam.ioNamePtr = (StringPtr) &(spec->name);
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pb.hPB.fileParam.ioFVersNum = 0;
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result = PBHCreateSync(&(pb.hPB));
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if ( result == noErr )
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{
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/* get info on created item */
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pb.ciPB.hFileInfo.ioFDirIndex = 0;
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result = PBGetCatInfoSync(&(pb.ciPB));
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if ( result == noErr )
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{
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/* Set fdScript in FXInfo */
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/* The negative script constants (smSystemScript, smCurrentScript, and smAllScripts) */
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/* don't make sense on disk, so only use scriptTag if scriptTag >= smRoman */
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/* (smRoman is 0). fdScript is valid if high bit is set (see IM-6, page 9-38) */
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pb.ciPB.hFileInfo.ioFlXFndrInfo.fdScript = (scriptTag >= smRoman) ?
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((char)scriptTag | (char)0x80) :
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(smRoman);
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/* Set creator/fileType */
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pb.ciPB.hFileInfo.ioFlFndrInfo.fdCreator = creator;
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pb.ciPB.hFileInfo.ioFlFndrInfo.fdType = fileType;
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/* Restore ioDirID field in pb which was changed by PBGetCatInfo */
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pb.ciPB.hFileInfo.ioDirID = spec->parID;
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result = PBSetCatInfoSync(&(pb.ciPB));
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}
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}
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return ( result );
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}
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else
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#endif /* !__MACOSSEVENFIVEONEORLATER */
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{
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return ( FSpCreate(spec, creator, fileType, scriptTag) );
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}
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}
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/*****************************************************************************/
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pascal OSErr FSpDirCreateCompat(const FSSpec *spec,
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ScriptCode scriptTag,
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long *createdDirID)
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{
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#if !__MACOSSEVENORLATER
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if ( !FSHasFSSpecCalls() && !QTHasFSSpecCalls() )
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{
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OSErr result;
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UniversalFMPB pb;
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pb.hPB.fileParam.ioVRefNum = spec->vRefNum;
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pb.hPB.fileParam.ioDirID = spec->parID;
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pb.hPB.fileParam.ioNamePtr = (StringPtr) &(spec->name);
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result = PBDirCreateSync(&(pb.hPB));
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*createdDirID = pb.hPB.fileParam.ioDirID;
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if ( result == noErr )
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{
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/* get info on created item */
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pb.ciPB.dirInfo.ioFDirIndex = 0;
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pb.ciPB.dirInfo.ioDrDirID = spec->parID;
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result = PBGetCatInfoSync(&(pb.ciPB));
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if ( result == noErr )
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{
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/* Set frScript in DXInfo */
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/* The negative script constants (smSystemScript, smCurrentScript, and smAllScripts) */
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/* don't make sense on disk, so only use scriptTag if scriptTag >= smRoman */
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/* (smRoman is 0). frScript is valid if high bit is set (see IM-6, page 9-38) */
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pb.ciPB.dirInfo.ioDrFndrInfo.frScript = (scriptTag >= smRoman) ?
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((char)scriptTag | (char)0x80) :
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(smRoman);
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/* Restore ioDirID field in pb which was changed by PBGetCatInfo */
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pb.ciPB.dirInfo.ioDrDirID = spec->parID;
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result = PBSetCatInfoSync(&(pb.ciPB));
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}
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}
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return ( result );
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}
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else
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#endif /* !__MACOSSEVENORLATER */
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{
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return ( FSpDirCreate(spec, scriptTag, createdDirID) );
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}
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}
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/*****************************************************************************/
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pascal OSErr FSpDeleteCompat(const FSSpec *spec)
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{
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#if !__MACOSSEVENORLATER
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if ( !FSHasFSSpecCalls() && !QTHasFSSpecCalls() )
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{
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HParamBlockRec pb;
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pb.ioParam.ioVRefNum = spec->vRefNum;
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pb.fileParam.ioDirID = spec->parID;
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pb.ioParam.ioNamePtr = (StringPtr) &(spec->name);
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pb.ioParam.ioVersNum = 0;
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return ( PBHDeleteSync(&pb) );
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}
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else
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#endif /* !__MACOSSEVENORLATER */
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{
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return ( FSpDelete(spec) );
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}
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}
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/*****************************************************************************/
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pascal OSErr FSpGetFInfoCompat(const FSSpec *spec,
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FInfo *fndrInfo)
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{
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#if !__MACOSSEVENORLATER
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if ( !FSHasFSSpecCalls() && !QTHasFSSpecCalls() )
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{
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OSErr result;
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HParamBlockRec pb;
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pb.fileParam.ioVRefNum = spec->vRefNum;
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pb.fileParam.ioDirID = spec->parID;
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pb.fileParam.ioNamePtr = (StringPtr) &(spec->name);
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pb.fileParam.ioFVersNum = 0;
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pb.fileParam.ioFDirIndex = 0;
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result = PBHGetFInfoSync(&pb);
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*fndrInfo = pb.fileParam.ioFlFndrInfo;
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return ( result );
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}
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else
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#endif /* !__MACOSSEVENORLATER */
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{
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return ( FSpGetFInfo(spec, fndrInfo) );
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}
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}
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/*****************************************************************************/
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pascal OSErr FSpSetFInfoCompat(const FSSpec *spec,
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const FInfo *fndrInfo)
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{
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#if !__MACOSSEVENORLATER
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if ( !FSHasFSSpecCalls() && !QTHasFSSpecCalls() )
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{
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OSErr result;
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HParamBlockRec pb;
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pb.fileParam.ioVRefNum = spec->vRefNum;
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pb.fileParam.ioDirID = spec->parID;
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pb.fileParam.ioNamePtr = (StringPtr) &(spec->name);
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pb.fileParam.ioFVersNum = 0;
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pb.fileParam.ioFDirIndex = 0;
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result = PBHGetFInfoSync(&pb);
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if ( result == noErr )
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{
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pb.fileParam.ioFlFndrInfo = *fndrInfo;
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pb.fileParam.ioDirID = spec->parID;
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result = PBHSetFInfoSync(&pb);
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}
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return ( result );
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}
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else
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#endif /* !__MACOSSEVENORLATER */
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{
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return ( FSpSetFInfo(spec, fndrInfo) );
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}
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}
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/*****************************************************************************/
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pascal OSErr FSpSetFLockCompat(const FSSpec *spec)
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{
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#if !__MACOSSEVENORLATER
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if ( !FSHasFSSpecCalls() && !QTHasFSSpecCalls() )
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{
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HParamBlockRec pb;
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pb.fileParam.ioVRefNum = spec->vRefNum;
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pb.fileParam.ioDirID = spec->parID;
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pb.fileParam.ioNamePtr = (StringPtr) &(spec->name);
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pb.fileParam.ioFVersNum = 0;
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return ( PBHSetFLockSync(&pb) );
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}
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else
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#endif /* !__MACOSSEVENORLATER */
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{
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return ( FSpSetFLock(spec) );
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}
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}
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/*****************************************************************************/
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pascal OSErr FSpRstFLockCompat(const FSSpec *spec)
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{
|
|
#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;
|
|
}
|
|
}
|
|
|
|
/*****************************************************************************/
|