macDirectoryCopy.c@ 31232

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1	/*
2	** Apple Macintosh Developer Technical Support
3	**
4	** DirectoryCopy: A robust, general purpose directory copy routine.
5	**
6	** by Jim Luther, Apple Developer Technical Support Emeritus
7	**
8	** File: DirectoryCopy.c
9	**
10	** Copyright © 1992-1998 Apple Computer, Inc.
11	** All rights reserved.
12	**
13	** You may incorporate this sample code into your applications without
14	** restriction, though the sample code has been provided "AS IS" and the
15	** responsibility for its operation is 100% yours. However, what you are
16	** not permitted to do is to redistribute the source as "DSC Sample Code"
17	** after having made changes. If you're going to re-distribute the source,
18	** we require that you make it clear in the source that the code was
19	** descended from Apple Sample Code, but that you've made changes.
20	*/
21
22	// Modified to allow renaming the destination folder
23
24	#include <Types.h>
25	#include <Errors.h>
26	#include <Memory.h>
27	#include <Files.h>
28	#include <Script.h>
29
30	#define __COMPILINGMOREFILES
31
32	#include "MoreFiles.h"
33	#include "MoreFilesExtras.h"
34	#include "MoreDesktopMgr.h"
35	#include "FileCopy.h"
36	#include "MacDirectoryCopy.h"
37	#include <string.h>
38
39
40	/*****************************************************************************/
41
42	enum
43	{
44	getNextItemOp = 1, /* couldn't access items in this directory - no access privileges */
45	copyDirCommentOp = 2, /* couldn't copy directory's Finder comment */
46	copyDirAccessPrivsOp = 3, /* couldn't copy directory's AFP access privileges */
47	copyDirFMAttributesOp = 4, /* couldn't copy directory's File Manager attributes */
48	dirCreateOp = 5, /* couldn't create destination directory */
49	fileCopyOp = 6 /* couldn't copy file */
50	};
51
52	/*****************************************************************************/
53
54
55
56	#define CallCopyErrProc(userRoutine, error, failedOperation, srcVRefNum, srcDirID, srcName, dstVRefNum, dstDirID, dstName) \
57	(*(userRoutine))((error), (failedOperation), (srcVRefNum), (srcDirID), (srcName), (dstVRefNum), (dstDirID), (dstName))
58
59	/*****************************************************************************/
60
61	typedef pascal Boolean (CopyFilterProcPtr) (const CInfoPBRec const cpbPtr);
62
63	/* ¦ Prototype for the CopyFilterProc function.
64	This is the prototype for the CopyFilterProc function called by
65	FilteredDirectoryCopy and GetLevelSize. If true is returned,
66	the file/folder is included in the copy, otherwise it is excluded.
67
68	pb input: Points to the CInfoPBRec for the item under consideration.
69
70	__________
71
72	Also see: FilteredDirectoryCopy, FSpFilteredDirectoryCopy
73	*/
74
75	#define CallCopyFilterProc(userRoutine, cpbPtr) (*(userRoutine))((cpbPtr))
76
77
78
79	/*****************************************************************************/
80
81	/* local constants */
82
83	enum
84	{
85	dirCopyBigCopyBuffSize = 0x00004000,
86	dirCopyMinCopyBuffSize = 0x00000200
87	};
88
89
90	/*****************************************************************************/
91
92	/* local data structures */
93
94	/* The EnumerateGlobals structure is used to minimize the amount of
95	** stack space used when recursively calling CopyLevel and to hold
96	** global information that might be needed at any time. */
97
98	#if PRAGMA_STRUCT_ALIGN
99	#pragma options align=mac68k
100	#endif
101	struct EnumerateGlobals
102	{
103	Ptr copyBuffer; /* pointer to buffer used for file copy operations */
104	long bufferSize; /* the size of the copy buffer */
105	CopyErrProcPtr errorHandler; /* pointer to error handling function */
106	CopyFilterProcPtr copyFilterProc; /* pointer to filter function */
107	OSErr error; /* temporary holder of results - saves 2 bytes of stack each level */
108	Boolean bailout; /* set to true to by error handling function if fatal error */
109	short destinationVRefNum; /* the destination vRefNum */
110	Str63 itemName; /* the name of the current item */
111	CInfoPBRec myCPB; /* the parameter block used for PBGetCatInfo calls */
112	};
113	#if PRAGMA_STRUCT_ALIGN
114	#pragma options align=reset
115	#endif
116
117	typedef struct EnumerateGlobals EnumerateGlobals;
118	typedef EnumerateGlobals *EnumerateGlobalsPtr;
119
120
121	/* The PreflightGlobals structure is used to minimize the amount of
122	** stack space used when recursively calling GetLevelSize and to hold
123	** global information that might be needed at any time. */
124
125	#if PRAGMA_STRUCT_ALIGN
126	#pragma options align=mac68k
127	#endif
128	struct PreflightGlobals
129	{
130	OSErr result; /* temporary holder of results - saves 2 bytes of stack each level */
131	Str63 itemName; /* the name of the current item */
132	CInfoPBRec myCPB; /* the parameter block used for PBGetCatInfo calls */
133
134	unsigned long dstBlksPerAllocBlk; /* the number of 512 byte blocks per allocation block on destination */
135
136	unsigned long allocBlksNeeded; /* the total number of allocation blocks needed */
137
138	unsigned long tempBlocks; /* temporary storage for calculations (save some stack space) */
139	CopyFilterProcPtr copyFilterProc; /* pointer to filter function */
140	};
141	#if PRAGMA_STRUCT_ALIGN
142	#pragma options align=reset
143	#endif
144
145	typedef struct PreflightGlobals PreflightGlobals;
146	typedef PreflightGlobals *PreflightGlobalsPtr;
147
148	/*****************************************************************************/
149
150	/* static prototypes */
151
152	static void GetLevelSize(long currentDirID,
153	PreflightGlobals *theGlobals);
154
155	static OSErr PreflightDirectoryCopySpace(short srcVRefNum,
156	long srcDirID,
157	short dstVRefNum,
158	CopyFilterProcPtr copyFilterProc,
159	Boolean *spaceOK);
160
161	static void CopyLevel(long sourceDirID,
162	long dstDirID,
163	EnumerateGlobals *theGlobals);
164
165	/*****************************************************************************/
166
167	static void GetLevelSize(long currentDirID,
168	PreflightGlobals *theGlobals)
169	{
170	short index = 1;
171
172	do
173	{
174	theGlobals->myCPB.dirInfo.ioFDirIndex = index;
175	theGlobals->myCPB.dirInfo.ioDrDirID = currentDirID; /* we need to do this every time */
176	/* through, since GetCatInfo */
177	/* returns ioFlNum in this field */
178	theGlobals->result = PBGetCatInfoSync(&theGlobals->myCPB);
179	if ( theGlobals->result == noErr )
180	{
181	if ( (theGlobals->copyFilterProc == NULL) \|\|
182	CallCopyFilterProc(theGlobals->copyFilterProc, &theGlobals->myCPB) ) /* filter if filter proc was supplied */
183	{
184	/* Either there's no filter proc OR the filter proc says to use this item */
185	if ( (theGlobals->myCPB.dirInfo.ioFlAttrib & ioDirMask) != 0 )
186	{
187	/* we have a directory */
188
189	GetLevelSize(theGlobals->myCPB.dirInfo.ioDrDirID, theGlobals); /* recurse */
190	theGlobals->result = noErr; /* clear error return on way back */
191	}
192	else
193	{
194	/* We have a file - add its allocation blocks to allocBlksNeeded. */
195	/* Since space on Mac OS disks is always allocated in allocation blocks, */
196	/* this takes into account rounding up to the end of an allocation block. */
197
198	/* get number of 512-byte blocks needed for data fork */
199	if ( ((unsigned long)theGlobals->myCPB.hFileInfo.ioFlLgLen & 0x000001ff) != 0 )
200	{
201	theGlobals->tempBlocks = ((unsigned long)theGlobals->myCPB.hFileInfo.ioFlLgLen >> 9) + 1;
202	}
203	else
204	{
205	theGlobals->tempBlocks = (unsigned long)theGlobals->myCPB.hFileInfo.ioFlLgLen >> 9;
206	}
207	/* now, calculate number of new allocation blocks needed for the data fork and add it to the total */
208	if ( theGlobals->tempBlocks % theGlobals->dstBlksPerAllocBlk )
209	{
210	theGlobals->allocBlksNeeded += (theGlobals->tempBlocks / theGlobals->dstBlksPerAllocBlk) + 1;
211	}
212	else
213	{
214	theGlobals->allocBlksNeeded += theGlobals->tempBlocks / theGlobals->dstBlksPerAllocBlk;
215	}
216
217	/* get number of 512-byte blocks needed for resource fork */
218	if ( ((unsigned long)theGlobals->myCPB.hFileInfo.ioFlRLgLen & 0x000001ff) != 0 )
219	{
220	theGlobals->tempBlocks = ((unsigned long)theGlobals->myCPB.hFileInfo.ioFlRLgLen >> 9) + 1;
221	}
222	else
223	{
224	theGlobals->tempBlocks = (unsigned long)theGlobals->myCPB.hFileInfo.ioFlRLgLen >> 9;
225	}
226	/* now, calculate number of new allocation blocks needed for the resource fork and add it to the total */
227	if ( theGlobals->tempBlocks % theGlobals->dstBlksPerAllocBlk )
228	{
229	theGlobals->allocBlksNeeded += (theGlobals->tempBlocks / theGlobals->dstBlksPerAllocBlk) + 1;
230	}
231	else
232	{
233	theGlobals->allocBlksNeeded += theGlobals->tempBlocks / theGlobals->dstBlksPerAllocBlk;
234	}
235	}
236	}
237	}
238	++index;
239	} while ( theGlobals->result == noErr );
240	}
241
242	/*****************************************************************************/
243
244	static OSErr PreflightDirectoryCopySpace(short srcVRefNum,
245	long srcDirID,
246	short dstVRefNum,
247	CopyFilterProcPtr copyFilterProc,
248	Boolean *spaceOK)
249	{
250	XVolumeParam pb;
251	OSErr error;
252	unsigned long dstFreeBlocks;
253	PreflightGlobals theGlobals;
254
255	error = XGetVolumeInfoNoName(NULL, dstVRefNum, &pb);
256	if ( error == noErr )
257	{
258	/* Convert freeBytes to free disk blocks (512-byte blocks) */
259	#if (UNIVERSAL_INTERFACES_VERSION >= 0x0330)
260	dstFreeBlocks = (pb.ioVFreeBytes >> 9);
261	#else
262	dstFreeBlocks = (pb.ioVFreeBytes.hi << 23) + (pb.ioVFreeBytes.lo >> 9);
263	#endif
264	/* get allocation block size (always multiple of 512) and divide by 512
265	to get number of 512-byte blocks per allocation block */
266	theGlobals.dstBlksPerAllocBlk = ((unsigned long)pb.ioVAlBlkSiz >> 9);
267
268	theGlobals.allocBlksNeeded = 0;
269
270	theGlobals.myCPB.dirInfo.ioNamePtr = theGlobals.itemName;
271	theGlobals.myCPB.dirInfo.ioVRefNum = srcVRefNum;
272
273	theGlobals.copyFilterProc = copyFilterProc;
274
275	GetLevelSize(srcDirID, &theGlobals);
276
277	/* Is there enough room on the destination volume for the source file? */
278	/* Note: This will work because the largest number of disk blocks supported */
279	/* on a 2TB volume is 0xffffffff and (allocBlksNeeded * dstBlksPerAllocBlk) */
280	/* will always be less than 0xffffffff. */
281	spaceOK = ((theGlobals.allocBlksNeeded theGlobals.dstBlksPerAllocBlk) <= dstFreeBlocks);
282	}
283
284	return ( error );
285	}
286
287	/*****************************************************************************/
288
289	static void CopyLevel(long sourceDirID,
290	long dstDirID,
291	EnumerateGlobals *theGlobals)
292	{
293	long currentSrcDirID;
294	long newDirID;
295	short index = 1;
296
297	do
298	{
299	/* Get next source item at the current directory level */
300
301	theGlobals->myCPB.dirInfo.ioFDirIndex = index;
302	theGlobals->myCPB.dirInfo.ioDrDirID = sourceDirID;
303	theGlobals->error = PBGetCatInfoSync(&theGlobals->myCPB);
304
305	if ( theGlobals->error == noErr )
306	{
307	if ( (theGlobals->copyFilterProc == NULL) \|\|
308	CallCopyFilterProc(theGlobals->copyFilterProc, &theGlobals->myCPB) ) /* filter if filter proc was supplied */
309	{
310	/* Either there's no filter proc OR the filter proc says to use this item */
311
312	/* We have an item. Is it a file or directory? */
313	if ( (theGlobals->myCPB.hFileInfo.ioFlAttrib & ioDirMask) != 0 )
314	{
315	/* We have a directory */
316
317	/* Create a new directory at the destination. No errors allowed! */
318	theGlobals->error = DirCreate(theGlobals->destinationVRefNum, dstDirID, theGlobals->itemName, &newDirID);
319	if ( theGlobals->error == noErr )
320	{
321	/* Save the current source directory ID where we can get it when we come back
322	** from recursion land. */
323	currentSrcDirID = theGlobals->myCPB.dirInfo.ioDrDirID;
324
325	/* Dive again (copy the directory level we just found below this one) */
326	CopyLevel(theGlobals->myCPB.dirInfo.ioDrDirID, newDirID, theGlobals);
327
328	if ( !theGlobals->bailout )
329	{
330	/* Copy comment from old to new directory. */
331	/* Ignore the result because we really don't care if it worked or not. */
332	(void) DTCopyComment(theGlobals->myCPB.dirInfo.ioVRefNum, currentSrcDirID, NULL, theGlobals->destinationVRefNum, newDirID, NULL);
333
334	/* Copy directory attributes (dates, etc.) to newDirID. */
335	/* No errors allowed */
336	theGlobals->error = CopyFileMgrAttributes(theGlobals->myCPB.dirInfo.ioVRefNum, currentSrcDirID, NULL, theGlobals->destinationVRefNum, newDirID, NULL, true);
337
338	/* handle any errors from CopyFileMgrAttributes */
339	if ( theGlobals->error != noErr )
340	{
341	if ( theGlobals->errorHandler != NULL )
342	{
343	theGlobals->bailout = CallCopyErrProc(theGlobals->errorHandler, theGlobals->error, copyDirFMAttributesOp,
344	theGlobals->myCPB.dirInfo.ioVRefNum, currentSrcDirID, NULL,
345	theGlobals->destinationVRefNum, newDirID, NULL);
346	}
347	else
348	{
349	/* If you don't handle the errors with an error handler, */
350	/* then the copy stops here. */
351	theGlobals->bailout = true;
352	}
353	}
354	}
355	}
356	else /* error handling for DirCreate */
357	{
358	if ( theGlobals->errorHandler != NULL )
359	{
360	theGlobals->bailout = CallCopyErrProc(theGlobals->errorHandler, theGlobals->error, dirCreateOp,
361	theGlobals->myCPB.dirInfo.ioVRefNum, currentSrcDirID, NULL,
362	theGlobals->destinationVRefNum, dstDirID, theGlobals->itemName);
363	}
364	else
365	{
366	/* If you don't handle the errors with an error handler, */
367	/* then the copy stops here. */
368	theGlobals->bailout = true;
369	}
370	}
371
372	if ( !theGlobals->bailout )
373	{
374	/* clear error return on way back if we aren't bailing out */
375	theGlobals->error = noErr;
376	}
377	}
378	else
379	{
380	/* We have a file, so copy it */
381
382	theGlobals->error = FileCopy(theGlobals->myCPB.hFileInfo.ioVRefNum,
383	theGlobals->myCPB.hFileInfo.ioFlParID,
384	theGlobals->itemName,
385	theGlobals->destinationVRefNum,
386	dstDirID,
387	NULL,
388	NULL,
389	theGlobals->copyBuffer,
390	theGlobals->bufferSize,
391	false);
392
393	/* handle any errors from FileCopy */
394	if ( theGlobals->error != noErr )
395	{
396	if ( theGlobals->errorHandler != NULL )
397	{
398	theGlobals->bailout = CallCopyErrProc(theGlobals->errorHandler, theGlobals->error, fileCopyOp,
399	theGlobals->myCPB.hFileInfo.ioVRefNum, theGlobals->myCPB.hFileInfo.ioFlParID, theGlobals->itemName,
400	theGlobals->destinationVRefNum, dstDirID, NULL);
401	if ( !theGlobals->bailout )
402	{
403	/* If the CopyErrProc handled the problem, clear the error here */
404	theGlobals->error = noErr;
405	}
406	}
407	else
408	{
409	/* If you don't handle the errors with an error handler, */
410	/* then the copy stops here. */
411	theGlobals->bailout = true;
412	}
413	}
414	}
415	}
416	}
417	else
418	{ /* error handling for PBGetCatInfo */
419	/* it's normal to get a fnfErr when indexing; that only means you've hit the end of the directory */
420	if ( theGlobals->error != fnfErr )
421	{
422	if ( theGlobals->errorHandler != NULL )
423	{
424	theGlobals->bailout = CallCopyErrProc(theGlobals->errorHandler, theGlobals->error, getNextItemOp,
425	theGlobals->myCPB.dirInfo.ioVRefNum, sourceDirID, NULL, 0, 0, NULL);
426	if ( !theGlobals->bailout )
427	{
428	/* If the CopyErrProc handled the problem, clear the error here */
429	theGlobals->error = noErr;
430	}
431	}
432	else
433	{
434	/* If you don't handle the errors with an error handler, */
435	/* then the copy stops here. */
436	theGlobals->bailout = true;
437	}
438	}
439	}
440	++index; /* prepare to get next item */
441	} while ( (theGlobals->error == noErr) && (!theGlobals->bailout) ); /* time to fall back a level? */
442	}
443
444	/*****************************************************************************/
445
446	pascal OSErr FilteredDirectoryCopy(short srcVRefNum,
447	long srcDirID,
448	ConstStr255Param srcName,
449	short dstVRefNum,
450	long dstDirID,
451	ConstStr255Param dstName,
452	void *copyBufferPtr,
453	long copyBufferSize,
454	Boolean preflight,
455	CopyErrProcPtr copyErrHandler,
456	CopyFilterProcPtr copyFilterProc, ConstStr255Param newName );
457	/* ¦ Make a copy of a directory structure in a new location with item filtering.
458	The FilteredDirectoryCopy function makes a copy of a directory
459	structure in a new location. If copyBufferPtr <> NIL, it points to
460	a buffer of copyBufferSize that is used to copy files data. The
461	larger the supplied buffer, the faster the copy. If
462	copyBufferPtr = NIL, then this routine allocates a buffer in the
463	application heap. If you pass a copy buffer to this routine, make
464	its size a multiple of 512 ($200) bytes for optimum performance.
465
466	The optional copyFilterProc parameter lets a routine you define
467	decide what files or directories are copied to the destination.
468
469	FilteredDirectoryCopy normally creates a new directory in the
470	specified destination directory and copies the source directory's
471	content into the new directory. However, if root parent directory
472	(fsRtParID) is passed as the dstDirID parameter and NULL is
473	passed as the dstName parameter, DirectoryCopy renames the
474	destination volume to the source directory's name (truncating
475	if the name is longer than 27 characters) and copies the source
476	directory's content into the destination volume's root directory.
477	This special case is supported by FilteredDirectoryCopy, but
478	not by FSpFilteredDirectoryCopy since with FSpFilteredDirectoryCopy,
479	the dstName parameter can not be NULL.
480
481	srcVRefNum input: Source volume specification.
482	srcDirID input: Source directory ID.
483	srcName input: Source directory name, or nil if
484	srcDirID specifies the directory.
485	dstVRefNum input: Destination volume specification.
486	dstDirID input: Destination directory ID.
487	dstName input: Destination directory name, or nil if
488	dstDirID specifies the directory.
489	copyBufferPtr input: Points to a buffer of copyBufferSize that
490	is used the i/o buffer for the copy or
491	nil if you want DirectoryCopy to allocate its
492	own buffer in the application heap.
493	copyBufferSize input: The size of the buffer pointed to
494	by copyBufferPtr.
495	preflight input: If true, DirectoryCopy makes sure there are
496	enough allocation blocks on the destination
497	volume to hold the directory's files before
498	starting the copy.
499	copyErrHandler input: A pointer to the routine you want called if an
500	error condition is detected during the copy, or
501	nil if you don't want to handle error conditions.
502	If you don't handle error conditions, the first
503	error will cause the copy to quit and
504	DirectoryCopy will return the error.
505	Error handling is recommended...
506	copyFilterProc input: A pointer to the filter routine you want called
507	for each item in the source directory, or NULL
508	if you don't want to filter.
509
510	Result Codes
511	noErr 0 No error
512	readErr Ð19 Driver does not respond to read requests
513	writErr Ð20 Driver does not respond to write requests
514	badUnitErr Ð21 Driver reference number does not
515	match unit table
516	unitEmptyErr Ð22 Driver reference number specifies a
517	nil handle in unit table
518	abortErr Ð27 Request aborted by KillIO
519	notOpenErr Ð28 Driver not open
520	dskFulErr -34 Destination volume is full
521	nsvErr -35 No such volume
522	ioErr -36 I/O error
523	bdNamErr -37 Bad filename
524	tmfoErr -42 Too many files open
525	fnfErr -43 Source file not found, or destination
526	directory does not exist
527	wPrErr -44 Volume locked by hardware
528	fLckdErr -45 File is locked
529	vLckdErr -46 Destination volume is read-only
530	fBsyErr -47 The source or destination file could
531	not be opened with the correct access
532	modes
533	dupFNErr -48 Destination file already exists
534	opWrErr -49 File already open for writing
535	paramErr -50 No default volume or function not
536	supported by volume
537	permErr -54 File is already open and cannot be opened using specified deny modes
538	memFullErr -108 Copy buffer could not be allocated
539	dirNFErr -120 Directory not found or incomplete pathname
540	wrgVolTypErr -123 Function not supported by volume
541	afpAccessDenied -5000 User does not have the correct access
542	afpDenyConflict -5006 The source or destination file could
543	not be opened with the correct access
544	modes
545	afpObjectTypeErr -5025 Source is a directory, directory not found
546	or incomplete pathname
547
548	__________
549
550	Also see: CopyErrProcPtr, CopyFilterProcPtr, FSpFilteredDirectoryCopy,
551	DirectoryCopy, FSpDirectoryCopy, FileCopy, FSpFileCopy
552	*/
553
554	/*****************************************************************************/
555
556	pascal OSErr FilteredDirectoryCopy(short srcVRefNum,
557	long srcDirID,
558	ConstStr255Param srcName,
559	short dstVRefNum,
560	long dstDirID,
561	ConstStr255Param dstName,
562	void *copyBufferPtr,
563	long copyBufferSize,
564	Boolean preflight,
565	CopyErrProcPtr copyErrHandler,
566	CopyFilterProcPtr copyFilterProc, ConstStr255Param newName)
567	{
568	EnumerateGlobals theGlobals;
569	Boolean isDirectory;
570	OSErr error;
571	Boolean ourCopyBuffer = false;
572	Str63 srcDirName, oldDiskName;
573	Boolean spaceOK;
574
575	/* Make sure a copy buffer is allocated. */
576	if ( copyBufferPtr == NULL )
577	{
578	/* The caller didn't supply a copy buffer so grab one from the application heap.
579	** Try to get a big copy buffer, if we can't, try for a 512-byte buffer.
580	** If 512 bytes aren't available, we're in trouble. */
581	copyBufferSize = dirCopyBigCopyBuffSize;
582	copyBufferPtr = NewPtr(copyBufferSize);
583	if ( copyBufferPtr == NULL )
584	{
585	copyBufferSize = dirCopyMinCopyBuffSize;
586	copyBufferPtr = NewPtr(copyBufferSize);
587	if ( copyBufferPtr == NULL )
588	{
589	return ( memFullErr );
590	}
591	}
592	ourCopyBuffer = true;
593	}
594
595	/* Get the real dirID where we're copying from and make sure it is a directory. */
596	error = GetDirectoryID(srcVRefNum, srcDirID, srcName, &srcDirID, &isDirectory);
597	if ( error != noErr )
598	{
599	goto ErrorExit;
600	}
601	if ( !isDirectory )
602	{
603	error = dirNFErr;
604	goto ErrorExit;
605	}
606
607	/* Special case destination if it is the root parent directory. */
608	/* Since you can't create the root directory, this is needed if */
609	/* you want to copy a directory's content to a disk's root directory. */
610	if ( (dstDirID == fsRtParID) && (dstName == NULL) )
611	{
612	dstDirID = fsRtParID;
613	isDirectory = true;
614	error = noErr;
615	}
616	else
617	{
618	/* Get the real dirID where we're going to put the copy and make sure it is a directory. */
619	error = GetDirectoryID(dstVRefNum, dstDirID, dstName, &dstDirID, &isDirectory);
620	if ( error != noErr )
621	{
622	goto ErrorExit;
623	}
624	if ( !isDirectory )
625	{
626	error = dirNFErr;
627	goto ErrorExit;
628	}
629	}
630
631	/* Get the real vRefNum of both the source and destination */
632	error = DetermineVRefNum(srcName, srcVRefNum, &srcVRefNum);
633	if ( error != noErr )
634	{
635	goto ErrorExit;
636	}
637	error = DetermineVRefNum(dstName, dstVRefNum, &dstVRefNum);
638	if ( error != noErr )
639	{
640	goto ErrorExit;
641	}
642
643	if ( preflight )
644	{
645	error = PreflightDirectoryCopySpace(srcVRefNum, srcDirID, dstVRefNum, copyFilterProc, &spaceOK);
646	if ( error != noErr )
647	{
648	goto ErrorExit;
649	}
650	if ( !spaceOK )
651	{
652	error = dskFulErr; /* not enough room on destination */
653	goto ErrorExit;
654	}
655	}
656
657	/* Create the new directory in the destination directory with the */
658	/* same name as the source directory. */
659	/*
660	if newName is not empty use it rather than the original dir name.
661	*/
662	if ( newName[0] == 0 )
663	{
664	error = GetDirName(srcVRefNum, srcDirID, srcDirName);
665	if ( error != noErr )
666	{
667	goto ErrorExit;
668	}
669	}
670	else
671	{
672	memcpy(srcDirName, newName, 32 );
673
674	}
675	/* Again, special case destination if the destination is the */
676	/* root parent directory. This time, we'll rename the disk to */
677	/* the source directory name. */
678	if ( dstDirID == fsRtParID )
679	{
680	/* Get the current name of the destination disk */
681	error = GetDirName(dstVRefNum, fsRtDirID, oldDiskName);
682	if ( error == noErr )
683	{
684	/* Shorten the name if it's too long to be the volume name */
685	TruncPString(srcDirName, srcDirName, 27);
686
687	/* Rename the disk */
688	error = HRename(dstVRefNum, fsRtParID, oldDiskName, srcDirName);
689	/* and copy to the root directory */
690	dstDirID = fsRtDirID;
691	}
692	}
693	else
694	{
695	error = DirCreate(dstVRefNum, dstDirID, srcDirName, &dstDirID);
696	}
697	if ( error != noErr )
698	{
699	/* handle any errors from DirCreate */
700	if ( copyErrHandler != NULL )
701	{
702	if ( CallCopyErrProc(copyErrHandler, error, dirCreateOp,
703	srcVRefNum, srcDirID, NULL,
704	dstVRefNum, dstDirID, srcDirName) )
705	{
706	goto ErrorExit;
707	}
708	else
709	{
710	/* If the CopyErrProc handled the problem, clear the error here */
711	/* and continue */
712	error = noErr;
713	}
714	}
715	else
716	{
717	/* If you don't handle the errors with an error handler, */
718	/* then the copy stops here. */
719	goto ErrorExit;
720	}
721	}
722
723	/* dstDirID is now the newly created directory! */
724
725	/* Set up the globals we need to access from the recursive routine. */
726	theGlobals.copyBuffer = (Ptr)copyBufferPtr;
727	theGlobals.bufferSize = copyBufferSize;
728	theGlobals.destinationVRefNum = dstVRefNum; /* so we can get to it always */
729	theGlobals.myCPB.hFileInfo.ioNamePtr = (StringPtr)&theGlobals.itemName;
730	theGlobals.myCPB.hFileInfo.ioVRefNum = srcVRefNum;
731	theGlobals.errorHandler = copyErrHandler;
732	theGlobals.bailout = false;
733	theGlobals.copyFilterProc = copyFilterProc;
734
735	/* Here we go into recursion land... */
736	CopyLevel(srcDirID, dstDirID, &theGlobals);
737	error = theGlobals.error; /* get the result */
738
739	if ( !theGlobals.bailout )
740	{
741	/* Copy comment from source to destination directory. */
742	/* Ignore the result because we really don't care if it worked or not. */
743	(void) DTCopyComment(srcVRefNum, srcDirID, NULL, dstVRefNum, dstDirID, NULL);
744
745	/* Copy the File Manager attributes */
746	error = CopyFileMgrAttributes(srcVRefNum, srcDirID, NULL,
747	dstVRefNum, dstDirID, NULL, true);
748
749	/* handle any errors from CopyFileMgrAttributes */
750	if ( (error != noErr) && (copyErrHandler != NULL) )
751	{
752	theGlobals.bailout = CallCopyErrProc(copyErrHandler, error, copyDirFMAttributesOp,
753	srcVRefNum, srcDirID, NULL,
754	dstVRefNum, dstDirID, NULL);
755	}
756	}
757
758	ErrorExit:
759	/* Get rid of the copy buffer if we allocated it. */
760	if ( ourCopyBuffer )
761	{
762	DisposePtr((Ptr)copyBufferPtr);
763	}
764
765	return ( error );
766	}
767
768
769	/*****************************************************************************/
770
771
772	pascal OSErr MacFSpDirectoryCopyRename(const FSSpec *srcSpec,
773	const FSSpec *dstSpec,
774	ConstStr255Param newName,
775	void *copyBufferPtr,
776	long copyBufferSize,
777	Boolean preflight,
778	CopyErrProcPtr copyErrHandler)
779	{
780	return ( FilteredDirectoryCopy(srcSpec->vRefNum, srcSpec->parID, srcSpec->name,
781	dstSpec->vRefNum, dstSpec->parID, dstSpec->name,
782	copyBufferPtr, copyBufferSize, preflight,
783	copyErrHandler, NULL, newName) );
784	}

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source: vbox/trunk/src/libs/xpcom18a4/xpcom/io/macDirectoryCopy.c@ 31232

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