| 1 |
/* |
| 2 |
* PearPC |
| 3 |
* hfs.cc |
| 4 |
* |
| 5 |
* Copyright (C) 2004 Stefan Weyergraf |
| 6 |
* |
| 7 |
* This program is free software; you can redistribute it and/or modify |
| 8 |
* it under the terms of the GNU General Public License version 2 as |
| 9 |
* published by the Free Software Foundation. |
| 10 |
* |
| 11 |
* This program is distributed in the hope that it will be useful, |
| 12 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 |
* GNU General Public License for more details. |
| 15 |
* |
| 16 |
* You should have received a copy of the GNU General Public License |
| 17 |
* along with this program; if not, write to the Free Software |
| 18 |
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 19 |
*/ |
| 20 |
|
| 21 |
#include <string.h> |
| 22 |
|
| 23 |
#include "debug/tracers.h" |
| 24 |
#include "hfs.h" |
| 25 |
#include "hfsstruct.h" |
| 26 |
#include "hfsplus.h" |
| 27 |
#include "tools/debug.h" |
| 28 |
#include "tools/endianess.h" |
| 29 |
#include "tools/except.h" |
| 30 |
#include "tools/snprintf.h" |
| 31 |
|
| 32 |
extern "C" { |
| 33 |
#include "hfs/libhfs.h" |
| 34 |
#include "hfs/volume.h" |
| 35 |
} |
| 36 |
|
| 37 |
byte HFSNodeDescriptor_struct[] = { |
| 38 |
STRUCT_ENDIAN_32 | STRUCT_ENDIAN_HOST, |
| 39 |
STRUCT_ENDIAN_32 | STRUCT_ENDIAN_HOST, |
| 40 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 41 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 42 |
STRUCT_ENDIAN_16 | STRUCT_ENDIAN_HOST, |
| 43 |
STRUCT_ENDIAN_16 | STRUCT_ENDIAN_HOST, |
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0 |
| 45 |
}; |
| 46 |
|
| 47 |
byte HFSBTHdrRec_struct[] = { |
| 48 |
STRUCT_ENDIAN_16 | STRUCT_ENDIAN_HOST, |
| 49 |
STRUCT_ENDIAN_32 | STRUCT_ENDIAN_HOST, |
| 50 |
STRUCT_ENDIAN_32 | STRUCT_ENDIAN_HOST, |
| 51 |
STRUCT_ENDIAN_32 | STRUCT_ENDIAN_HOST, |
| 52 |
STRUCT_ENDIAN_32 | STRUCT_ENDIAN_HOST, |
| 53 |
STRUCT_ENDIAN_16 | STRUCT_ENDIAN_HOST, |
| 54 |
STRUCT_ENDIAN_16 | STRUCT_ENDIAN_HOST, |
| 55 |
STRUCT_ENDIAN_32 | STRUCT_ENDIAN_HOST, |
| 56 |
STRUCT_ENDIAN_32 | STRUCT_ENDIAN_HOST, |
| 57 |
0 |
| 58 |
}; |
| 59 |
|
| 60 |
byte HFSCatKeyRec_struct[] = { |
| 61 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 62 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 63 |
STRUCT_ENDIAN_32 | STRUCT_ENDIAN_HOST, |
| 64 |
// 31 bytes |
| 65 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 66 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 67 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 68 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 69 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 70 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 71 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 72 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 73 |
|
| 74 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 75 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 76 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 77 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 78 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 79 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 80 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 81 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 82 |
|
| 83 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 84 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 85 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 86 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 87 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 88 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 89 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 90 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 91 |
|
| 92 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 93 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 94 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 95 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 96 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 97 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 98 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
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|
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0 |
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}; |
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|
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byte HFSCatFileRec_struct[] = { |
| 104 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
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STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
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// FInfo |
| 107 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 108 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 109 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 110 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 111 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 112 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 113 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 114 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 115 |
STRUCT_ENDIAN_16 | STRUCT_ENDIAN_HOST, |
| 116 |
STRUCT_ENDIAN_16 | STRUCT_ENDIAN_HOST, |
| 117 |
STRUCT_ENDIAN_16 | STRUCT_ENDIAN_HOST, |
| 118 |
STRUCT_ENDIAN_16 | STRUCT_ENDIAN_HOST, |
| 119 |
// |
| 120 |
STRUCT_ENDIAN_32 | STRUCT_ENDIAN_HOST, |
| 121 |
STRUCT_ENDIAN_16 | STRUCT_ENDIAN_HOST, |
| 122 |
STRUCT_ENDIAN_32 | STRUCT_ENDIAN_HOST, |
| 123 |
STRUCT_ENDIAN_32 | STRUCT_ENDIAN_HOST, |
| 124 |
STRUCT_ENDIAN_16 | STRUCT_ENDIAN_HOST, |
| 125 |
STRUCT_ENDIAN_32 | STRUCT_ENDIAN_HOST, |
| 126 |
STRUCT_ENDIAN_32 | STRUCT_ENDIAN_HOST, |
| 127 |
STRUCT_ENDIAN_32 | STRUCT_ENDIAN_HOST, |
| 128 |
STRUCT_ENDIAN_32 | STRUCT_ENDIAN_HOST, |
| 129 |
STRUCT_ENDIAN_32 | STRUCT_ENDIAN_HOST, |
| 130 |
// FXInfo |
| 131 |
STRUCT_ENDIAN_16 | STRUCT_ENDIAN_HOST, |
| 132 |
STRUCT_ENDIAN_16 | STRUCT_ENDIAN_HOST, |
| 133 |
STRUCT_ENDIAN_16 | STRUCT_ENDIAN_HOST, |
| 134 |
STRUCT_ENDIAN_16 | STRUCT_ENDIAN_HOST, |
| 135 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 136 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 137 |
STRUCT_ENDIAN_16 | STRUCT_ENDIAN_HOST, |
| 138 |
STRUCT_ENDIAN_32 | STRUCT_ENDIAN_HOST, |
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// |
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STRUCT_ENDIAN_16 | STRUCT_ENDIAN_HOST, |
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// data fork extent record |
| 142 |
STRUCT_ENDIAN_16 | STRUCT_ENDIAN_HOST, |
| 143 |
STRUCT_ENDIAN_16 | STRUCT_ENDIAN_HOST, |
| 144 |
STRUCT_ENDIAN_16 | STRUCT_ENDIAN_HOST, |
| 145 |
STRUCT_ENDIAN_16 | STRUCT_ENDIAN_HOST, |
| 146 |
STRUCT_ENDIAN_16 | STRUCT_ENDIAN_HOST, |
| 147 |
STRUCT_ENDIAN_16 | STRUCT_ENDIAN_HOST, |
| 148 |
// res fork extent record |
| 149 |
STRUCT_ENDIAN_16 | STRUCT_ENDIAN_HOST, |
| 150 |
STRUCT_ENDIAN_16 | STRUCT_ENDIAN_HOST, |
| 151 |
STRUCT_ENDIAN_16 | STRUCT_ENDIAN_HOST, |
| 152 |
STRUCT_ENDIAN_16 | STRUCT_ENDIAN_HOST, |
| 153 |
STRUCT_ENDIAN_16 | STRUCT_ENDIAN_HOST, |
| 154 |
STRUCT_ENDIAN_16 | STRUCT_ENDIAN_HOST, |
| 155 |
// |
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STRUCT_ENDIAN_32 | STRUCT_ENDIAN_HOST, |
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0 |
| 158 |
}; |
| 159 |
|
| 160 |
byte HFSMDB_struct[] = { |
| 161 |
STRUCT_ENDIAN_16 | STRUCT_ENDIAN_HOST, |
| 162 |
STRUCT_ENDIAN_32 | STRUCT_ENDIAN_HOST, |
| 163 |
STRUCT_ENDIAN_32 | STRUCT_ENDIAN_HOST, |
| 164 |
STRUCT_ENDIAN_16 | STRUCT_ENDIAN_HOST, |
| 165 |
STRUCT_ENDIAN_16 | STRUCT_ENDIAN_HOST, |
| 166 |
STRUCT_ENDIAN_16 | STRUCT_ENDIAN_HOST, |
| 167 |
STRUCT_ENDIAN_16 | STRUCT_ENDIAN_HOST, |
| 168 |
STRUCT_ENDIAN_16 | STRUCT_ENDIAN_HOST, |
| 169 |
STRUCT_ENDIAN_32 | STRUCT_ENDIAN_HOST, |
| 170 |
STRUCT_ENDIAN_32 | STRUCT_ENDIAN_HOST, |
| 171 |
STRUCT_ENDIAN_16 | STRUCT_ENDIAN_HOST, |
| 172 |
STRUCT_ENDIAN_32 | STRUCT_ENDIAN_HOST, |
| 173 |
STRUCT_ENDIAN_16 | STRUCT_ENDIAN_HOST, |
| 174 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 175 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 176 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 177 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 178 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 179 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 180 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 181 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 182 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 183 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 184 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 185 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 186 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 187 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 188 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 189 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 190 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 191 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 192 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 193 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 194 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 195 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 196 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 197 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 198 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 199 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 200 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 201 |
STRUCT_ENDIAN_8 | STRUCT_ENDIAN_HOST, |
| 202 |
STRUCT_ENDIAN_32 | STRUCT_ENDIAN_HOST, |
| 203 |
STRUCT_ENDIAN_16 | STRUCT_ENDIAN_HOST, |
| 204 |
STRUCT_ENDIAN_32 | STRUCT_ENDIAN_HOST, |
| 205 |
STRUCT_ENDIAN_32 | STRUCT_ENDIAN_HOST, |
| 206 |
STRUCT_ENDIAN_32 | STRUCT_ENDIAN_HOST, |
| 207 |
STRUCT_ENDIAN_16 | STRUCT_ENDIAN_HOST, |
| 208 |
STRUCT_ENDIAN_32 | STRUCT_ENDIAN_HOST, |
| 209 |
STRUCT_ENDIAN_32 | STRUCT_ENDIAN_HOST, |
| 210 |
STRUCT_ENDIAN_32 | STRUCT_ENDIAN_HOST, |
| 211 |
STRUCT_ENDIAN_32 | STRUCT_ENDIAN_HOST, |
| 212 |
STRUCT_ENDIAN_32 | STRUCT_ENDIAN_HOST, |
| 213 |
STRUCT_ENDIAN_32 | STRUCT_ENDIAN_HOST, |
| 214 |
STRUCT_ENDIAN_32 | STRUCT_ENDIAN_HOST, |
| 215 |
STRUCT_ENDIAN_32 | STRUCT_ENDIAN_HOST, |
| 216 |
STRUCT_ENDIAN_32 | STRUCT_ENDIAN_HOST, |
| 217 |
STRUCT_ENDIAN_32 | STRUCT_ENDIAN_HOST, |
| 218 |
STRUCT_ENDIAN_16 | STRUCT_ENDIAN_HOST, |
| 219 |
STRUCT_ENDIAN_16 | STRUCT_ENDIAN_HOST, |
| 220 |
STRUCT_ENDIAN_16 | STRUCT_ENDIAN_HOST, |
| 221 |
STRUCT_ENDIAN_32 | STRUCT_ENDIAN_HOST, |
| 222 |
STRUCT_ENDIAN_16 | STRUCT_ENDIAN_HOST, |
| 223 |
STRUCT_ENDIAN_16 | STRUCT_ENDIAN_HOST, |
| 224 |
STRUCT_ENDIAN_16 | STRUCT_ENDIAN_HOST, |
| 225 |
STRUCT_ENDIAN_16 | STRUCT_ENDIAN_HOST, |
| 226 |
STRUCT_ENDIAN_16 | STRUCT_ENDIAN_HOST, |
| 227 |
STRUCT_ENDIAN_16 | STRUCT_ENDIAN_HOST, |
| 228 |
STRUCT_ENDIAN_32 | STRUCT_ENDIAN_HOST, |
| 229 |
STRUCT_ENDIAN_16 | STRUCT_ENDIAN_HOST, |
| 230 |
STRUCT_ENDIAN_16 | STRUCT_ENDIAN_HOST, |
| 231 |
STRUCT_ENDIAN_16 | STRUCT_ENDIAN_HOST, |
| 232 |
STRUCT_ENDIAN_16 | STRUCT_ENDIAN_HOST, |
| 233 |
STRUCT_ENDIAN_16 | STRUCT_ENDIAN_HOST, |
| 234 |
STRUCT_ENDIAN_16 | STRUCT_ENDIAN_HOST, |
| 235 |
0 |
| 236 |
}; |
| 237 |
|
| 238 |
/* |
| 239 |
* |
| 240 |
*/ |
| 241 |
static bool doTryBootHFS(const HFSMDB &mdb, File *aDevice, uint aDeviceBlocksize, FileOfs start, PartitionEntry *partEnt); |
| 242 |
|
| 243 |
bool tryBootHFS(File *aDevice, uint aDeviceBlocksize, FileOfs start, PartitionEntry *partEnt) |
| 244 |
{ |
| 245 |
HFSMDB mdb; |
| 246 |
aDevice->seek(start+0x400); |
| 247 |
if (aDevice->read((byte*)&mdb, sizeof mdb) == sizeof mdb) { |
| 248 |
createHostStructx(&mdb, sizeof mdb, HFSMDB_struct, big_endian); |
| 249 |
if (mdb.drSigWord == HFSSigWord) { |
| 250 |
if (mdb.drEmbedSigWord == HFSPlusSigWord) { |
| 251 |
// HFS+ (embedded in HFS) |
| 252 |
IO_PROM_FS_TRACE("contains HFS volume, embedding a HFS+ volume\n"); |
| 253 |
IO_PROM_FS_TRACE("embed.start=%08x, embed.count=%08x, hfsblksz=%08x\n", |
| 254 |
mdb.drEmbedExtent.startBlock, |
| 255 |
mdb.drEmbedExtent.blockCount, |
| 256 |
mdb.drAlblkSz); |
| 257 |
return tryBootHFSPlus(aDevice, aDeviceBlocksize, start+mdb.drEmbedExtent.startBlock*mdb.drAlblkSz, partEnt); |
| 258 |
} else { |
| 259 |
IO_PROM_FS_TRACE("contains HFS volume\n"); |
| 260 |
return doTryBootHFS(mdb, aDevice, aDeviceBlocksize, start, partEnt); |
| 261 |
} |
| 262 |
} |
| 263 |
} |
| 264 |
return false; |
| 265 |
} |
| 266 |
|
| 267 |
struct HFSInstantiateBootFilePrivData { |
| 268 |
int mPartNum; |
| 269 |
}; |
| 270 |
|
| 271 |
static File *HFSInstantiateBootFile(File *aDevice, void *priv) |
| 272 |
{ |
| 273 |
HFSInstantiateBootFilePrivData *p = (HFSInstantiateBootFilePrivData*)priv; |
| 274 |
HFSFileSystem *fs = new HFSFileSystem(aDevice, p->mPartNum); |
| 275 |
File *f = fs->openBootFile(); |
| 276 |
if (!f) delete fs; |
| 277 |
return f; |
| 278 |
} |
| 279 |
|
| 280 |
static FileSystem *HFSInstantiateFileSystem(File *aDevice, int partnum) |
| 281 |
{ |
| 282 |
return new HFSFileSystem(aDevice, partnum); |
| 283 |
} |
| 284 |
|
| 285 |
static bool doTryBootHFS(const HFSMDB &mdb, File *aDevice, uint aDeviceBlocksize, FileOfs start, PartitionEntry *partEnt) |
| 286 |
{ |
| 287 |
if (partEnt->mPartNum <= 0) return false; |
| 288 |
hfs_devicehandle_s dh; |
| 289 |
dh.mDevice = aDevice; |
| 290 |
dh.mStart = 0; |
| 291 |
hfsvol *vol = hfs_mount(&dh, partEnt->mPartNum-1, HFS_MODE_RDONLY); |
| 292 |
if (vol) { |
| 293 |
hfs_umount(vol); |
| 294 |
HFSInstantiateBootFilePrivData *priv = (HFSInstantiateBootFilePrivData*) |
| 295 |
malloc(sizeof (HFSInstantiateBootFilePrivData)); |
| 296 |
priv->mPartNum = partEnt->mPartNum; |
| 297 |
partEnt->mInstantiateBootFilePrivData = priv; |
| 298 |
partEnt->mInstantiateBootFile = HFSInstantiateBootFile; |
| 299 |
partEnt->mInstantiateFileSystem = HFSInstantiateFileSystem; |
| 300 |
partEnt->mBootMethod = BM_chrp; |
| 301 |
return true; |
| 302 |
} else IO_PROM_FS_TRACE("couldn't mount HFS partition.\n"); |
| 303 |
return false; |
| 304 |
} |
| 305 |
|
| 306 |
/***/ |
| 307 |
class HFSFile: public File { |
| 308 |
protected: |
| 309 |
hfsfile * mFile; |
| 310 |
FileOfs mCurOfs; |
| 311 |
FileSystem * mFS; |
| 312 |
bool mOwnFS; |
| 313 |
public: |
| 314 |
|
| 315 |
HFSFile(hfsfile *file, FileSystem *fs, bool own_fs) |
| 316 |
{ |
| 317 |
mFile = file; |
| 318 |
mCurOfs = 0; |
| 319 |
mFS = fs; |
| 320 |
mOwnFS = own_fs; |
| 321 |
} |
| 322 |
|
| 323 |
virtual ~HFSFile() |
| 324 |
{ |
| 325 |
hfs_close(mFile); |
| 326 |
if (mOwnFS) delete mFS; |
| 327 |
} |
| 328 |
|
| 329 |
virtual FileOfs getSize() const |
| 330 |
{ |
| 331 |
return mFile->cat.u.fil.filLgLen; |
| 332 |
} |
| 333 |
|
| 334 |
virtual uint read(void *buf, uint size) |
| 335 |
{ |
| 336 |
uint r = hfs_read(mFile, buf, size); |
| 337 |
mCurOfs += r; |
| 338 |
return r; |
| 339 |
} |
| 340 |
|
| 341 |
virtual void seek(FileOfs offset) |
| 342 |
{ |
| 343 |
hfs_seek(mFile, offset, HFS_SEEK_SET); |
| 344 |
mCurOfs = offset; |
| 345 |
} |
| 346 |
|
| 347 |
virtual FileOfs tell() const |
| 348 |
{ |
| 349 |
return mCurOfs; |
| 350 |
} |
| 351 |
|
| 352 |
}; |
| 353 |
|
| 354 |
/***/ |
| 355 |
HFSFileSystem::HFSFileSystem(File *device, int partnum) |
| 356 |
: FileSystem(device) |
| 357 |
{ |
| 358 |
dh.mDevice = mDevice; |
| 359 |
dh.mStart = 0; |
| 360 |
hfshandle = hfs_mount(&dh, partnum-1, HFS_MODE_RDONLY); |
| 361 |
if (!hfshandle) throw MsgException("couldn't mount HFS file system"); |
| 362 |
} |
| 363 |
|
| 364 |
HFSFileSystem::~HFSFileSystem() |
| 365 |
{ |
| 366 |
hfs_umount((hfsvol*)hfshandle); |
| 367 |
} |
| 368 |
|
| 369 |
File *HFSFileSystem::open(const String &filename) |
| 370 |
{ |
| 371 |
hfsfile *f = hfs_open((hfsvol*)hfshandle, filename.contentChar()); |
| 372 |
if (!f) return NULL; |
| 373 |
return new HFSFile(f, this, false); |
| 374 |
} |
| 375 |
|
| 376 |
// WARNING: on success this will bind this filesystem to the file (mOwnFS) |
| 377 |
File *HFSFileSystem::openBootFile() |
| 378 |
{ |
| 379 |
hfsvol *vol = (hfsvol*)hfshandle; |
| 380 |
uint startupFolderID = vol->mdb.drFndrInfo[0]; |
| 381 |
hfsdir *dir = hfs_opendir_by_id(vol, startupFolderID); |
| 382 |
if (!dir) { |
| 383 |
IO_PROM_FS_TRACE("couldn't get Startup Folder of HFS partition.\n"); |
| 384 |
return NULL; |
| 385 |
} |
| 386 |
hfsdirent dirent; |
| 387 |
while (hfs_readdir(dir, &dirent) == 0) { |
| 388 |
// IO_PROM_FS_TRACE("%-4s %08x %s\n", dirent.u.file.type, dirent.cnid, dirent.name); |
| 389 |
if (strcmp(dirent.u.file.type, "tbxi") == 0) { |
| 390 |
hfsfile *file = hfs_open_by_dirent(vol, &dirent); |
| 391 |
if (file) { |
| 392 |
/* IO_PROM_FS_TRACE("got Startup FILE!\n"); |
| 393 |
char buf[32]; |
| 394 |
hfs_read(file, buf, 32); |
| 395 |
buf[31] = 0; |
| 396 |
IO_PROM_FS_TRACE("%s\n", buf);*/ |
| 397 |
return new HFSFile(file, this, true); |
| 398 |
} |
| 399 |
} |
| 400 |
} |
| 401 |
IO_PROM_FS_TRACE("couldn't find a Startup File in the Startup Folder of the HFS partition.\n"); |
| 402 |
return NULL; |
| 403 |
} |
| 404 |
|
| 405 |
bool HFSFileSystem::getBlessedPath(String &blessed) |
| 406 |
{ |
| 407 |
hfsvol *vol = (hfsvol*)hfshandle; |
| 408 |
uint startupFolderID = vol->mdb.drFndrInfo[0]; |
| 409 |
uint id = startupFolderID; |
| 410 |
uint maxit = 200; |
| 411 |
blessed.assign("/"); |
| 412 |
while ((id != HFS_CNID_ROOTDIR) && maxit--) { |
| 413 |
CatDataRec dthd; |
| 414 |
if (v_getdthread(vol, id, &dthd, NULL) <= 0) return false; |
| 415 |
String p(dthd.u.dthd.thdCName); |
| 416 |
blessed.prepend(p); |
| 417 |
blessed.prepend("/"); |
| 418 |
id = dthd.u.dthd.thdParID; |
| 419 |
} |
| 420 |
return (id == HFS_CNID_ROOTDIR); |
| 421 |
} |
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