projects / apple / xnu.git / blame
| Commit | Line | Data |
|---|---|---|
| 1c79356b | 1 | /* |
| 9bccf70c | 2 | * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved. |
| 1c79356b A |
3 | * |
| 4 | * @APPLE_LICENSE_HEADER_START@ | |
| 5 | * | |
| 6 | * The contents of this file constitute Original Code as defined in and | |
| 7 | * are subject to the Apple Public Source License Version 1.1 (the | |
| 8 | * "License"). You may not use this file except in compliance with the | |
| 9 | * License. Please obtain a copy of the License at | |
| 10 | * http://www.apple.com/publicsource and read it before using this file. | |
| 11 | * | |
| 12 | * This Original Code and all software distributed under the License are | |
| 13 | * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER | |
| 14 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, | |
| 15 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
| 16 | * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the | |
| 17 | * License for the specific language governing rights and limitations | |
| 18 | * under the License. | |
| 19 | * | |
| 20 | * @APPLE_LICENSE_HEADER_END@ | |
| 21 | */ | |
| 1c79356b A |
22 | |
| 23 | #include "../../hfs_macos_defs.h" | |
| 24 | #include "../../hfs_format.h" | |
| 25 | ||
| 26 | #include "../headers/FileMgrInternal.h" | |
| 27 | #include "../headers/HFSUnicodeWrappers.h" | |
| 28 | #include "../headers/CatalogPrivate.h" | |
| 29 | ||
| 30 | ||
| 31 | struct ExtentsRecBuffer { | |
| 9bccf70c | 32 | ExtentKey extentKey; |
| 1c79356b A |
33 | ExtentRecord extentData; |
| 34 | }; | |
| 35 | typedef struct ExtentsRecBuffer ExtentsRecBuffer; | |
| 36 | ||
| 37 | ||
| 1c79356b A |
38 | UInt32 CheckExtents( void *extents, UInt32 blocks, Boolean isHFSPlus ); |
| 39 | OSErr DeleteExtents( ExtendedVCB *vcb, UInt32 fileNumber, Boolean isHFSPlus ); | |
| 40 | OSErr MoveExtents( ExtendedVCB *vcb, UInt32 srcFileID, UInt32 destFileID, Boolean isHFSPlus ); | |
| 41 | void CopyCatalogNodeInfo( CatalogRecord *src, CatalogRecord *dest ); | |
| 42 | void CopyBigCatalogNodeInfo( CatalogRecord *src, CatalogRecord *dest ); | |
| 1c79356b | 43 | void CopyExtentInfo( ExtentKey *key, ExtentRecord *data, ExtentsRecBuffer *buffer, UInt16 bufferCount ); |
| 1c79356b A |
44 | |
| 45 | ||
| 46 | ||
| 47 | OSErr ExchangeFileIDs( ExtendedVCB *vcb, ConstUTF8Param srcName, ConstUTF8Param destName, HFSCatalogNodeID srcID, HFSCatalogNodeID destID, UInt32 srcHint, UInt32 destHint ) | |
| 48 | { | |
| 9bccf70c A |
49 | CatalogKey srcKey; // 518 bytes |
| 50 | CatalogKey destKey; // 518 bytes | |
| 1c79356b | 51 | CatalogRecord srcData; // 520 bytes |
| 1c79356b A |
52 | CatalogRecord destData; // 520 bytes |
| 53 | CatalogRecord swapData; // 520 bytes | |
| 9bccf70c A |
54 | SInt16 numSrcExtentBlocks; |
| 55 | SInt16 numDestExtentBlocks; | |
| 56 | OSErr err; | |
| 57 | Boolean isHFSPlus = ( vcb->vcbSigWord == kHFSPlusSigWord ); | |
| 1c79356b A |
58 | |
| 59 | TrashCatalogIterator(vcb, srcID); // invalidate any iterators for this parentID | |
| 60 | TrashCatalogIterator(vcb, destID); // invalidate any iterators for this parentID | |
| 61 | ||
| 0b4e3aa0 | 62 | err = BuildCatalogKeyUTF8(vcb, srcID, srcName, kUndefinedStrLen, &srcKey, NULL); |
| 1c79356b A |
63 | ReturnIfError(err); |
| 64 | ||
| 0b4e3aa0 | 65 | err = BuildCatalogKeyUTF8(vcb, destID, destName, kUndefinedStrLen, &destKey, NULL); |
| 1c79356b A |
66 | ReturnIfError(err); |
| 67 | ||
| b4c24cb9 A |
68 | err = BTCheckFreeSpace(GetFileControlBlock(vcb->extentsRefNum)); |
| 69 | ReturnIfError(err); | |
| 70 | ||
| 1c79356b A |
71 | if ( isHFSPlus ) |
| 72 | { | |
| 73 | //-- Step 1: Check the catalog nodes for extents | |
| 74 | ||
| 75 | //-- locate the source file, test for extents in extent file, and copy the cat record for later | |
| 76 | err = LocateCatalogNodeByKey( vcb, srcHint, &srcKey, &srcData, &srcHint ); | |
| 77 | ReturnIfError( err ); | |
| 78 | ||
| 79 | if ( srcData.recordType != kHFSPlusFileRecord ) | |
| 80 | return( cmFThdDirErr ); // Error "cmFThdDirErr = it is a directory" | |
| 81 | ||
| 82 | //-- Check if there are any extents in the source file | |
| 83 |