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/*
* This file has been modified for the cdrkit suite.
*
* The behaviour and appearence of the program code below can differ to a major
* extent from the version distributed by the original author(s).
*
* For details, see Changelog file distributed with the cdrkit package. If you
* received this file from another source then ask the distributing person for
* a log of modifications.
*
*/
/* @(#)low.h 1.1 00/03/05 joerg */
/*
* hfsutils - tools for reading and writing Macintosh HFS volumes
* Copyright (C) 1996, 1997 Robert Leslie
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
typedef struct {
Integer sbSig; /* device signature (should be 0x4552) */
Integer sbBlkSize; /* block size of the device (in bytes) */
LongInt sbBlkCount; /* number of blocks on the device */
Integer sbDevType; /* reserved */
Integer sbDevId; /* reserved */
LongInt sbData; /* reserved */
Integer sbDrvrCount; /* number of driver descriptor entries */
LongInt ddBlock; /* first driver's starting block */
Integer ddSize; /* size of the driver, in 512-byte blocks */
Integer ddType; /* driver operating system type (MacOS = 1) */
Integer ddPad[243]; /* additional drivers, if any */
} Block0;
typedef struct {
Integer bbID; /* boot blocks signature */
LongInt bbEntry; /* entry point to boot code */
Integer bbVersion; /* boot blocks version number */
Integer bbPageFlags; /* used internally */
Str15 bbSysName; /* System filename */
Str15 bbShellName; /* Finder filename */
Str15 bbDbg1Name; /* debugger filename */
Str15 bbDbg2Name; /* debugger filename */
Str15 bbScreenName; /* name of startup screen */
Str15 bbHelloName; /* name of startup program */
Str15 bbScrapName; /* name of system scrap file */
Integer bbCntFCBs; /* number of FCBs to allocate */
Integer bbCntEvts; /* number of event queue elements */
LongInt bb128KSHeap; /* system heap size on 128K Mac */
LongInt bb256KSHeap; /* used internally */
LongInt bbSysHeapSize; /* system heap size on all machines */
Integer filler; /* reserved */
LongInt bbSysHeapExtra; /* additional system heap space */
LongInt bbSysHeapFract; /* fraction of RAM for system heap */
} BootBlkHdr;
typedef struct {
Integer pmSig; /* partition signature (0x504d or 0x5453) */
Integer pmSigPad; /* reserved */
LongInt pmMapBlkCnt; /* number of blocks in partition map */
LongInt pmPyPartStart; /* first physical block of partition */
LongInt pmPartBlkCnt; /* number of blocks in partition */
Char pmPartName[33]; /* partition name */
Char pmParType[33]; /* partition type */
/*
* Apple_partition_map partition map
* Apple_Driver device driver
* Apple_Driver43 SCSI Manager 4.3 device driver
* Apple_MFS Macintosh 64K ROM filesystem
* Apple_HFS Macintosh hierarchical filesystem
* Apple_Unix_SVR2 Unix filesystem
* Apple_PRODOS ProDOS filesystem
* Apple_Free unused
* Apple_Scratch empty
*/
LongInt pmLgDataStart; /* first logical block of data area */
LongInt pmDataCnt; /* number of blocks in data area */
LongInt pmPartStatus; /* partition status information */
LongInt pmLgBootStart; /* first logical block of boot code */
LongInt pmBootSize; /* size of boot code, in bytes */
LongInt pmBootAddr; /* boot code load address */
LongInt pmBootAddr2; /* reserved */
LongInt pmBootEntry; /* boot code entry point */
LongInt pmBootEntry2; /* reserved */
LongInt pmBootCksum; /* boot code checksum */
Char pmProcessor[17];/* processor type */
Integer pmPad[188]; /* reserved */
} Partition;
int l_lockvol(hfsvol *);
int l_readblock0(hfsvol *);
int l_readpm(hfsvol *);
int l_readmdb(hfsvol *);
int l_writemdb(hfsvol *);
int l_readvbm(hfsvol *);
int l_writevbm(hfsvol *);
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