| | 1 | /* |
| | 2 | * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved. |
| | 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 | */ |
| | 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 { |
| | 32 | ExtentKey extentKey; |
| | 33 | ExtentRecord extentData; |
| | 34 | }; |
| | 35 | typedef struct ExtentsRecBuffer ExtentsRecBuffer; |
| | 36 | |
| | 37 | |
| | 38 | static UInt32 CheckExtents( void *extents, UInt32 blocks, Boolean isHFSPlus ); |
| | 39 | static OSErr DeleteExtents( ExtendedVCB *vcb, UInt32 fileNumber, Boolean isHFSPlus ); |
| | 40 | static OSErr MoveExtents( ExtendedVCB *vcb, UInt32 srcFileID, UInt32 destFileID, Boolean isHFSPlus ); |
| | 41 | static void CopyCatalogNodeInfo( CatalogRecord *src, CatalogRecord *dest ); |
| | 42 | static void CopyBigCatalogNodeInfo( CatalogRecord *src, CatalogRecord *dest ); |
| | 43 | static void CopyExtentInfo( ExtentKey *key, ExtentRecord *data, ExtentsRecBuffer *buffer, UInt16 bufferCount ); |
| | 44 | |
| | 45 | |
| | 46 | |
| | 47 | OSErr ExchangeFileIDs( ExtendedVCB *vcb, ConstUTF8Param srcName, ConstUTF8Param destName, HFSCatalogNodeID srcID, HFSCatalogNodeID destID, UInt32 srcHint, UInt32 destHint ) |
| | 48 | { |
| | 49 | CatalogKey srcKey; // 518 bytes |
| | 50 | CatalogKey destKey; // 518 bytes |
| | 51 | CatalogRecord srcData; // 520 bytes |
| | 52 | CatalogRecord destData; // 520 bytes |
| | 53 | CatalogRecord swapData; // 520 bytes |
| | 54 | SInt16 numSrcExtentBlocks; |
| | 55 | SInt16 numDestExtentBlocks; |
| | 56 | OSErr err; |
| | 57 | Boolean isHFSPlus = ( vcb->vcbSigWord == kHFSPlusSigWord ); |
| | 58 | |
| | 59 | err = BuildCatalogKeyUTF8(vcb, srcID, srcName, kUndefinedStrLen, &srcKey, NULL); |
| | 60 | ReturnIfError(err); |
| | 61 | |
| | 62 | err = BuildCatalogKeyUTF8(vcb, destID, destName, kUndefinedStrLen, &destKey, NULL); |
| | 63 | ReturnIfError(err); |
| | 64 | |
| | 65 | if ( isHFSPlus ) |
| | 66 | { |
| | 67 | //-- Step 1: Check the catalog nodes for extents |
| | 68 | |
| | 69 | //-- locate the source file, test for extents in extent file, and copy the cat record for later |
| | 70 | err = LocateCatalogNodeByKey( vcb, srcHint, &srcKey, &srcData, &srcHint ); |
| | 71 | ReturnIfError( err ); |
| | 72 | |
| | 73 | if ( srcData.recordType != kHFSPlusFileRecord ) |
| | 74 | return( cmFThdDirErr ); // Error "cmFThdDirErr = it is a directory" |
| | 75 | |
| | 76 | //-- Check if there are any extents in the source file |
| | 77 |
projects / apple / xnu.git / blame_incremental