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| 1 /* 7zIn.c */ | |
| 2 | |
| 3 #include "7zIn.h" | |
| 4 #include "7zDecode.h" | |
| 5 #include "../../7zCrc.h" | |
| 6 | |
| 7 #define RINOM(x) { if((x) == 0) return SZE_OUTOFMEMORY; } | |
| 8 | |
| 9 void SzArDbExInit(CArchiveDatabaseEx *db) | |
| 10 { | |
| 11 SzArchiveDatabaseInit(&db->Database); | |
| 12 db->FolderStartPackStreamIndex = 0; | |
| 13 db->PackStreamStartPositions = 0; | |
| 14 db->FolderStartFileIndex = 0; | |
| 15 db->FileIndexToFolderIndexMap = 0; | |
| 16 } | |
| 17 | |
| 18 void SzArDbExFree(CArchiveDatabaseEx *db, void (*freeFunc)(void *)) | |
| 19 { | |
| 20 freeFunc(db->FolderStartPackStreamIndex); | |
| 21 freeFunc(db->PackStreamStartPositions); | |
| 22 freeFunc(db->FolderStartFileIndex); | |
| 23 freeFunc(db->FileIndexToFolderIndexMap); | |
| 24 SzArchiveDatabaseFree(&db->Database, freeFunc); | |
| 25 SzArDbExInit(db); | |
| 26 } | |
| 27 | |
| 28 /* | |
| 29 CFileSize GetFolderPackStreamSize(int folderIndex, int streamIndex) const | |
| 30 { | |
| 31 return PackSizes[FolderStartPackStreamIndex[folderIndex] + streamIndex]; | |
| 32 } | |
| 33 | |
| 34 CFileSize GetFilePackSize(int fileIndex) const | |
| 35 { | |
| 36 int folderIndex = FileIndexToFolderIndexMap[fileIndex]; | |
| 37 if (folderIndex >= 0) | |
| 38 { | |
| 39 const CFolder &folderInfo = Folders[folderIndex]; | |
| 40 if (FolderStartFileIndex[folderIndex] == fileIndex) | |
| 41 return GetFolderFullPackSize(folderIndex); | |
| 42 } | |
| 43 return 0; | |
| 44 } | |
| 45 */ | |
| 46 | |
| 47 #define MY_ALLOC(T, p, size, allocFunc) { if ((size) == 0) p = 0; else \ | |
| 48 if ((p = (T *)allocFunc((size) * sizeof(T))) == 0) return SZE_OUTOFMEMORY; } | |
| 49 | |
| 50 SZ_RESULT SzArDbExFill(CArchiveDatabaseEx *db, void * (*allocFunc)(size_t size)) | |
| 51 { | |
| 52 UInt32 startPos = 0; | |
| 53 CFileSize startPosSize = 0; | |
| 54 UInt32 i; | |
| 55 UInt32 folderIndex = 0; | |
| 56 UInt32 indexInFolder = 0; | |
| 57 MY_ALLOC(UInt32, db->FolderStartPackStreamIndex, db->Database.NumFolders, allo
cFunc); | |
| 58 for(i = 0; i < db->Database.NumFolders; i++) | |
| 59 { | |
| 60 db->FolderStartPackStreamIndex[i] = startPos; | |
| 61 startPos += db->Database.Folders[i].NumPackStreams; | |
| 62 } | |
| 63 | |
| 64 MY_ALLOC(CFileSize, db->PackStreamStartPositions, db->Database.NumPackStreams,
allocFunc); | |
| 65 | |
| 66 for(i = 0; i < db->Database.NumPackStreams; i++) | |
| 67 { | |
| 68 db->PackStreamStartPositions[i] = startPosSize; | |
| 69 startPosSize += db->Database.PackSizes[i]; | |
| 70 } | |
| 71 | |
| 72 MY_ALLOC(UInt32, db->FolderStartFileIndex, db->Database.NumFolders, allocFunc)
; | |
| 73 MY_ALLOC(UInt32, db->FileIndexToFolderIndexMap, db->Database.NumFiles, allocFu
nc); | |
| 74 | |
| 75 for (i = 0; i < db->Database.NumFiles; i++) | |
| 76 { | |
| 77 CFileItem *file = db->Database.Files + i; | |
| 78 int emptyStream = !file->HasStream; | |
| 79 if (emptyStream && indexInFolder == 0) | |
| 80 { | |
| 81 db->FileIndexToFolderIndexMap[i] = (UInt32)-1; | |
| 82 continue; | |
| 83 } | |
| 84 if (indexInFolder == 0) | |
| 85 { | |
| 86 /* | |
| 87 v3.13 incorrectly worked with empty folders | |
| 88 v4.07: Loop for skipping empty folders | |
| 89 */ | |
| 90 for (;;) | |
| 91 { | |
| 92 if (folderIndex >= db->Database.NumFolders) | |
| 93 return SZE_ARCHIVE_ERROR; | |
| 94 db->FolderStartFileIndex[folderIndex] = i; | |
| 95 if (db->Database.Folders[folderIndex].NumUnPackStreams != 0) | |
| 96 break; | |
| 97 folderIndex++; | |
| 98 } | |
| 99 } | |
| 100 db->FileIndexToFolderIndexMap[i] = folderIndex; | |
| 101 if (emptyStream) | |
| 102 continue; | |
| 103 indexInFolder++; | |
| 104 if (indexInFolder >= db->Database.Folders[folderIndex].NumUnPackStreams) | |
| 105 { | |
| 106 folderIndex++; | |
| 107 indexInFolder = 0; | |
| 108 } | |
| 109 } | |
| 110 return SZ_OK; | |
| 111 } | |
| 112 | |
| 113 | |
| 114 CFileSize SzArDbGetFolderStreamPos(CArchiveDatabaseEx *db, UInt32 folderIndex, U
Int32 indexInFolder) | |
| 115 { | |
| 116 return db->ArchiveInfo.DataStartPosition + | |
| 117 db->PackStreamStartPositions[db->FolderStartPackStreamIndex[folderIndex] + i
ndexInFolder]; | |
| 118 } | |
| 119 | |
| 120 int SzArDbGetFolderFullPackSize(CArchiveDatabaseEx *db, UInt32 folderIndex, CFil
eSize *resSize) | |
| 121 { | |
| 122 UInt32 packStreamIndex = db->FolderStartPackStreamIndex[folderIndex]; | |
| 123 CFolder *folder = db->Database.Folders + folderIndex; | |
| 124 CFileSize size = 0; | |
| 125 UInt32 i; | |
| 126 for (i = 0; i < folder->NumPackStreams; i++) | |
| 127 { | |
| 128 CFileSize t = size + db->Database.PackSizes[packStreamIndex + i]; | |
| 129 if (t < size) | |
| 130 return SZE_FAIL; | |
| 131 size = t; | |
| 132 } | |
| 133 *resSize = size; | |
| 134 return SZ_OK; | |
| 135 } | |
| 136 | |
| 137 | |
| 138 /* | |
| 139 SZ_RESULT SzReadTime(const CObjectVector<CSzByteBuffer> &dataVector, | |
| 140 CObjectVector<CFileItem> &files, UInt64 type) | |
| 141 { | |
| 142 CBoolVector boolVector; | |
| 143 RINOK(ReadBoolVector2(files.Size(), boolVector)) | |
| 144 | |
| 145 CStreamSwitch streamSwitch; | |
| 146 RINOK(streamSwitch.Set(this, &dataVector)); | |
| 147 | |
| 148 for(int i = 0; i < files.Size(); i++) | |
| 149 { | |
| 150 CFileItem &file = files[i]; | |
| 151 CArchiveFileTime fileTime; | |
| 152 bool defined = boolVector[i]; | |
| 153 if (defined) | |
| 154 { | |
| 155 UInt32 low, high; | |
| 156 RINOK(SzReadUInt32(low)); | |
| 157 RINOK(SzReadUInt32(high)); | |
| 158 fileTime.dwLowDateTime = low; | |
| 159 fileTime.dwHighDateTime = high; | |
| 160 } | |
| 161 switch(type) | |
| 162 { | |
| 163 case k7zIdCreationTime: | |
| 164 file.IsCreationTimeDefined = defined; | |
| 165 if (defined) | |
| 166 file.CreationTime = fileTime; | |
| 167 break; | |
| 168 case k7zIdLastWriteTime: | |
| 169 file.IsLastWriteTimeDefined = defined; | |
| 170 if (defined) | |
| 171 file.LastWriteTime = fileTime; | |
| 172 break; | |
| 173 case k7zIdLastAccessTime: | |
| 174 file.IsLastAccessTimeDefined = defined; | |
| 175 if (defined) | |
| 176 file.LastAccessTime = fileTime; | |
| 177 break; | |
| 178 } | |
| 179 } | |
| 180 return SZ_OK; | |
| 181 } | |
| 182 */ | |
| 183 | |
| 184 SZ_RESULT SafeReadDirect(ISzInStream *inStream, Byte *data, size_t size) | |
| 185 { | |
| 186 #ifdef _LZMA_IN_CB | |
| 187 while (size > 0) | |
| 188 { | |
| 189 void *inBufferSpec; | |
| 190 size_t processedSize; | |
| 191 const Byte *inBuffer; | |
| 192 RINOK(inStream->Read(inStream, (void **)&inBufferSpec, size, &processedSize)
); | |
| 193 inBuffer = (const Byte *)inBufferSpec; | |
| 194 if (processedSize == 0 || processedSize > size) | |
| 195 return SZE_FAIL; | |
| 196 size -= processedSize; | |
| 197 do | |
| 198 { | |
| 199 *data++ = *inBuffer++; | |
| 200 } | |
| 201 while (--processedSize != 0); | |
| 202 } | |
| 203 #else | |
| 204 size_t processedSize; | |
| 205 RINOK(inStream->Read(inStream, data, size, &processedSize)); | |
| 206 if (processedSize != size) | |
| 207 return SZE_FAIL; | |
| 208 #endif | |
| 209 return SZ_OK; | |
| 210 } | |
| 211 | |
| 212 SZ_RESULT SafeReadDirectByte(ISzInStream *inStream, Byte *data) | |
| 213 { | |
| 214 return SafeReadDirect(inStream, data, 1); | |
| 215 } | |
| 216 | |
| 217 SZ_RESULT SafeReadDirectUInt32(ISzInStream *inStream, UInt32 *value, UInt32 *crc
) | |
| 218 { | |
| 219 int i; | |
| 220 *value = 0; | |
| 221 for (i = 0; i < 4; i++) | |
| 222 { | |
| 223 Byte b; | |
| 224 RINOK(SafeReadDirectByte(inStream, &b)); | |
| 225 *value |= ((UInt32)b << (8 * i)); | |
| 226 *crc = CRC_UPDATE_BYTE(*crc, b); | |
| 227 } | |
| 228 return SZ_OK; | |
| 229 } | |
| 230 | |
| 231 SZ_RESULT SafeReadDirectUInt64(ISzInStream *inStream, UInt64 *value, UInt32 *crc
) | |
| 232 { | |
| 233 int i; | |
| 234 *value = 0; | |
| 235 for (i = 0; i < 8; i++) | |
| 236 { | |
| 237 Byte b; | |
| 238 RINOK(SafeReadDirectByte(inStream, &b)); | |
| 239 *value |= ((UInt64)b << (8 * i)); | |
| 240 *crc = CRC_UPDATE_BYTE(*crc, b); | |
| 241 } | |
| 242 return SZ_OK; | |
| 243 } | |
| 244 | |
| 245 int TestSignatureCandidate(Byte *testBytes) | |
| 246 { | |
| 247 size_t i; | |
| 248 for (i = 0; i < k7zSignatureSize; i++) | |
| 249 if (testBytes[i] != k7zSignature[i]) | |
| 250 return 0; | |
| 251 return 1; | |
| 252 } | |
| 253 | |
| 254 typedef struct _CSzState | |
| 255 { | |
| 256 Byte *Data; | |
| 257 size_t Size; | |
| 258 }CSzData; | |
| 259 | |
| 260 SZ_RESULT SzReadByte(CSzData *sd, Byte *b) | |
| 261 { | |
| 262 if (sd->Size == 0) | |
| 263 return SZE_ARCHIVE_ERROR; | |
| 264 sd->Size--; | |
| 265 *b = *sd->Data++; | |
| 266 return SZ_OK; | |
| 267 } | |
| 268 | |
| 269 SZ_RESULT SzReadBytes(CSzData *sd, Byte *data, size_t size) | |
| 270 { | |
| 271 size_t i; | |
| 272 for (i = 0; i < size; i++) | |
| 273 { | |
| 274 RINOK(SzReadByte(sd, data + i)); | |
| 275 } | |
| 276 return SZ_OK; | |
| 277 } | |
| 278 | |
| 279 SZ_RESULT SzReadUInt32(CSzData *sd, UInt32 *value) | |
| 280 { | |
| 281 int i; | |
| 282 *value = 0; | |
| 283 for (i = 0; i < 4; i++) | |
| 284 { | |
| 285 Byte b; | |
| 286 RINOK(SzReadByte(sd, &b)); | |
| 287 *value |= ((UInt32)(b) << (8 * i)); | |
| 288 } | |
| 289 return SZ_OK; | |
| 290 } | |
| 291 | |
| 292 SZ_RESULT SzReadNumber(CSzData *sd, UInt64 *value) | |
| 293 { | |
| 294 Byte firstByte; | |
| 295 Byte mask = 0x80; | |
| 296 int i; | |
| 297 RINOK(SzReadByte(sd, &firstByte)); | |
| 298 *value = 0; | |
| 299 for (i = 0; i < 8; i++) | |
| 300 { | |
| 301 Byte b; | |
| 302 if ((firstByte & mask) == 0) | |
| 303 { | |
| 304 UInt64 highPart = firstByte & (mask - 1); | |
| 305 *value += (highPart << (8 * i)); | |
| 306 return SZ_OK; | |
| 307 } | |
| 308 RINOK(SzReadByte(sd, &b)); | |
| 309 *value |= ((UInt64)b << (8 * i)); | |
| 310 mask >>= 1; | |
| 311 } | |
| 312 return SZ_OK; | |
| 313 } | |
| 314 | |
| 315 SZ_RESULT SzReadSize(CSzData *sd, CFileSize *value) | |
| 316 { | |
| 317 UInt64 value64; | |
| 318 RINOK(SzReadNumber(sd, &value64)); | |
| 319 *value = (CFileSize)value64; | |
| 320 return SZ_OK; | |
| 321 } | |
| 322 | |
| 323 SZ_RESULT SzReadNumber32(CSzData *sd, UInt32 *value) | |
| 324 { | |
| 325 UInt64 value64; | |
| 326 RINOK(SzReadNumber(sd, &value64)); | |
| 327 if (value64 >= 0x80000000) | |
| 328 return SZE_NOTIMPL; | |
| 329 if (value64 >= ((UInt64)(1) << ((sizeof(size_t) - 1) * 8 + 2))) | |
| 330 return SZE_NOTIMPL; | |
| 331 *value = (UInt32)value64; | |
| 332 return SZ_OK; | |
| 333 } | |
| 334 | |
| 335 SZ_RESULT SzReadID(CSzData *sd, UInt64 *value) | |
| 336 { | |
| 337 return SzReadNumber(sd, value); | |
| 338 } | |
| 339 | |
| 340 SZ_RESULT SzSkeepDataSize(CSzData *sd, UInt64 size) | |
| 341 { | |
| 342 if (size > sd->Size) | |
| 343 return SZE_ARCHIVE_ERROR; | |
| 344 sd->Size -= (size_t)size; | |
| 345 sd->Data += (size_t)size; | |
| 346 return SZ_OK; | |
| 347 } | |
| 348 | |
| 349 SZ_RESULT SzSkeepData(CSzData *sd) | |
| 350 { | |
| 351 UInt64 size; | |
| 352 RINOK(SzReadNumber(sd, &size)); | |
| 353 return SzSkeepDataSize(sd, size); | |
| 354 } | |
| 355 | |
| 356 SZ_RESULT SzReadArchiveProperties(CSzData *sd) | |
| 357 { | |
| 358 for (;;) | |
| 359 { | |
| 360 UInt64 type; | |
| 361 RINOK(SzReadID(sd, &type)); | |
| 362 if (type == k7zIdEnd) | |
| 363 break; | |
| 364 SzSkeepData(sd); | |
| 365 } | |
| 366 return SZ_OK; | |
| 367 } | |
| 368 | |
| 369 SZ_RESULT SzWaitAttribute(CSzData *sd, UInt64 attribute) | |
| 370 { | |
| 371 for (;;) | |
| 372 { | |
| 373 UInt64 type; | |
| 374 RINOK(SzReadID(sd, &type)); | |
| 375 if (type == attribute) | |
| 376 return SZ_OK; | |
| 377 if (type == k7zIdEnd) | |
| 378 return SZE_ARCHIVE_ERROR; | |
| 379 RINOK(SzSkeepData(sd)); | |
| 380 } | |
| 381 } | |
| 382 | |
| 383 SZ_RESULT SzReadBoolVector(CSzData *sd, size_t numItems, Byte **v, void * (*allo
cFunc)(size_t size)) | |
| 384 { | |
| 385 Byte b = 0; | |
| 386 Byte mask = 0; | |
| 387 size_t i; | |
| 388 MY_ALLOC(Byte, *v, numItems, allocFunc); | |
| 389 for (i = 0; i < numItems; i++) | |
| 390 { | |
| 391 if (mask == 0) | |
| 392 { | |
| 393 RINOK(SzReadByte(sd, &b)); | |
| 394 mask = 0x80; | |
| 395 } | |
| 396 (*v)[i] = (Byte)(((b & mask) != 0) ? 1 : 0); | |
| 397 mask >>= 1; | |
| 398 } | |
| 399 return SZ_OK; | |
| 400 } | |
| 401 | |
| 402 SZ_RESULT SzReadBoolVector2(CSzData *sd, size_t numItems, Byte **v, void * (*all
ocFunc)(size_t size)) | |
| 403 { | |
| 404 Byte allAreDefined; | |
| 405 size_t i; | |
| 406 RINOK(SzReadByte(sd, &allAreDefined)); | |
| 407 if (allAreDefined == 0) | |
| 408 return SzReadBoolVector(sd, numItems, v, allocFunc); | |
| 409 MY_ALLOC(Byte, *v, numItems, allocFunc); | |
| 410 for(i = 0; i < numItems; i++) | |
| 411 (*v)[i] = 1; | |
| 412 return SZ_OK; | |
| 413 } | |
| 414 | |
| 415 SZ_RESULT SzReadHashDigests( | |
| 416 CSzData *sd, | |
| 417 size_t numItems, | |
| 418 Byte **digestsDefined, | |
| 419 UInt32 **digests, | |
| 420 void * (*allocFunc)(size_t size)) | |
| 421 { | |
| 422 size_t i; | |
| 423 RINOK(SzReadBoolVector2(sd, numItems, digestsDefined, allocFunc)); | |
| 424 MY_ALLOC(UInt32, *digests, numItems, allocFunc); | |
| 425 for(i = 0; i < numItems; i++) | |
| 426 if ((*digestsDefined)[i]) | |
| 427 { | |
| 428 RINOK(SzReadUInt32(sd, (*digests) + i)); | |
| 429 } | |
| 430 return SZ_OK; | |
| 431 } | |
| 432 | |
| 433 SZ_RESULT SzReadPackInfo( | |
| 434 CSzData *sd, | |
| 435 CFileSize *dataOffset, | |
| 436 UInt32 *numPackStreams, | |
| 437 CFileSize **packSizes, | |
| 438 Byte **packCRCsDefined, | |
| 439 UInt32 **packCRCs, | |
| 440 void * (*allocFunc)(size_t size)) | |
| 441 { | |
| 442 UInt32 i; | |
| 443 RINOK(SzReadSize(sd, dataOffset)); | |
| 444 RINOK(SzReadNumber32(sd, numPackStreams)); | |
| 445 | |
| 446 RINOK(SzWaitAttribute(sd, k7zIdSize)); | |
| 447 | |
| 448 MY_ALLOC(CFileSize, *packSizes, (size_t)*numPackStreams, allocFunc); | |
| 449 | |
| 450 for(i = 0; i < *numPackStreams; i++) | |
| 451 { | |
| 452 RINOK(SzReadSize(sd, (*packSizes) + i)); | |
| 453 } | |
| 454 | |
| 455 for (;;) | |
| 456 { | |
| 457 UInt64 type; | |
| 458 RINOK(SzReadID(sd, &type)); | |
| 459 if (type == k7zIdEnd) | |
| 460 break; | |
| 461 if (type == k7zIdCRC) | |
| 462 { | |
| 463 RINOK(SzReadHashDigests(sd, (size_t)*numPackStreams, packCRCsDefined, pack
CRCs, allocFunc)); | |
| 464 continue; | |
| 465 } | |
| 466 RINOK(SzSkeepData(sd)); | |
| 467 } | |
| 468 if (*packCRCsDefined == 0) | |
| 469 { | |
| 470 MY_ALLOC(Byte, *packCRCsDefined, (size_t)*numPackStreams, allocFunc); | |
| 471 MY_ALLOC(UInt32, *packCRCs, (size_t)*numPackStreams, allocFunc); | |
| 472 for(i = 0; i < *numPackStreams; i++) | |
| 473 { | |
| 474 (*packCRCsDefined)[i] = 0; | |
| 475 (*packCRCs)[i] = 0; | |
| 476 } | |
| 477 } | |
| 478 return SZ_OK; | |
| 479 } | |
| 480 | |
| 481 SZ_RESULT SzReadSwitch(CSzData *sd) | |
| 482 { | |
| 483 Byte external; | |
| 484 RINOK(SzReadByte(sd, &external)); | |
| 485 return (external == 0) ? SZ_OK: SZE_ARCHIVE_ERROR; | |
| 486 } | |
| 487 | |
| 488 SZ_RESULT SzGetNextFolderItem(CSzData *sd, CFolder *folder, void * (*allocFunc)(
size_t size)) | |
| 489 { | |
| 490 UInt32 numCoders; | |
| 491 UInt32 numBindPairs; | |
| 492 UInt32 numPackedStreams; | |
| 493 UInt32 i; | |
| 494 UInt32 numInStreams = 0; | |
| 495 UInt32 numOutStreams = 0; | |
| 496 RINOK(SzReadNumber32(sd, &numCoders)); | |
| 497 folder->NumCoders = numCoders; | |
| 498 | |
| 499 MY_ALLOC(CCoderInfo, folder->Coders, (size_t)numCoders, allocFunc); | |
| 500 | |
| 501 for (i = 0; i < numCoders; i++) | |
| 502 SzCoderInfoInit(folder->Coders + i); | |
| 503 | |
| 504 for (i = 0; i < numCoders; i++) | |
| 505 { | |
| 506 Byte mainByte; | |
| 507 CCoderInfo *coder = folder->Coders + i; | |
| 508 { | |
| 509 unsigned idSize, j; | |
| 510 Byte longID[15]; | |
| 511 RINOK(SzReadByte(sd, &mainByte)); | |
| 512 idSize = (unsigned)(mainByte & 0xF); | |
| 513 RINOK(SzReadBytes(sd, longID, idSize)); | |
| 514 if (idSize > sizeof(coder->MethodID)) | |
| 515 return SZE_NOTIMPL; | |
| 516 coder->MethodID = 0; | |
| 517 for (j = 0; j < idSize; j++) | |
| 518 coder->MethodID |= (CMethodID)longID[idSize - 1 - j] << (8 * j); | |
| 519 | |
| 520 if ((mainByte & 0x10) != 0) | |
| 521 { | |
| 522 RINOK(SzReadNumber32(sd, &coder->NumInStreams)); | |
| 523 RINOK(SzReadNumber32(sd, &coder->NumOutStreams)); | |
| 524 } | |
| 525 else | |
| 526 { | |
| 527 coder->NumInStreams = 1; | |
| 528 coder->NumOutStreams = 1; | |
| 529 } | |
| 530 if ((mainByte & 0x20) != 0) | |
| 531 { | |
| 532 UInt64 propertiesSize = 0; | |
| 533 RINOK(SzReadNumber(sd, &propertiesSize)); | |
| 534 if (!SzByteBufferCreate(&coder->Properties, (size_t)propertiesSize, allo
cFunc)) | |
| 535 return SZE_OUTOFMEMORY; | |
| 536 RINOK(SzReadBytes(sd, coder->Properties.Items, (size_t)propertiesSize)); | |
| 537 } | |
| 538 } | |
| 539 while ((mainByte & 0x80) != 0) | |
| 540 { | |
| 541 RINOK(SzReadByte(sd, &mainByte)); | |
| 542 RINOK(SzSkeepDataSize(sd, (mainByte & 0xF))); | |
| 543 if ((mainByte & 0x10) != 0) | |
| 544 { | |
| 545 UInt32 n; | |
| 546 RINOK(SzReadNumber32(sd, &n)); | |
| 547 RINOK(SzReadNumber32(sd, &n)); | |
| 548 } | |
| 549 if ((mainByte & 0x20) != 0) | |
| 550 { | |
| 551 UInt64 propertiesSize = 0; | |
| 552 RINOK(SzReadNumber(sd, &propertiesSize)); | |
| 553 RINOK(SzSkeepDataSize(sd, propertiesSize)); | |
| 554 } | |
| 555 } | |
| 556 numInStreams += (UInt32)coder->NumInStreams; | |
| 557 numOutStreams += (UInt32)coder->NumOutStreams; | |
| 558 } | |
| 559 | |
| 560 numBindPairs = numOutStreams - 1; | |
| 561 folder->NumBindPairs = numBindPairs; | |
| 562 | |
| 563 | |
| 564 MY_ALLOC(CBindPair, folder->BindPairs, (size_t)numBindPairs, allocFunc); | |
| 565 | |
| 566 for (i = 0; i < numBindPairs; i++) | |
| 567 { | |
| 568 CBindPair *bindPair = folder->BindPairs + i;; | |
| 569 RINOK(SzReadNumber32(sd, &bindPair->InIndex)); | |
| 570 RINOK(SzReadNumber32(sd, &bindPair->OutIndex)); | |
| 571 } | |
| 572 | |
| 573 numPackedStreams = numInStreams - (UInt32)numBindPairs; | |
| 574 | |
| 575 folder->NumPackStreams = numPackedStreams; | |
| 576 MY_ALLOC(UInt32, folder->PackStreams, (size_t)numPackedStreams, allocFunc); | |
| 577 | |
| 578 if (numPackedStreams == 1) | |
| 579 { | |
| 580 UInt32 j; | |
| 581 UInt32 pi = 0; | |
| 582 for (j = 0; j < numInStreams; j++) | |
| 583 if (SzFolderFindBindPairForInStream(folder, j) < 0) | |
| 584 { | |
| 585 folder->PackStreams[pi++] = j; | |
| 586 break; | |
| 587 } | |
| 588 } | |
| 589 else | |
| 590 for(i = 0; i < numPackedStreams; i++) | |
| 591 { | |
| 592 RINOK(SzReadNumber32(sd, folder->PackStreams + i)); | |
| 593 } | |
| 594 return SZ_OK; | |
| 595 } | |
| 596 | |
| 597 SZ_RESULT SzReadUnPackInfo( | |
| 598 CSzData *sd, | |
| 599 UInt32 *numFolders, | |
| 600 CFolder **folders, /* for allocFunc */ | |
| 601 void * (*allocFunc)(size_t size), | |
| 602 ISzAlloc *allocTemp) | |
| 603 { | |
| 604 UInt32 i; | |
| 605 RINOK(SzWaitAttribute(sd, k7zIdFolder)); | |
| 606 RINOK(SzReadNumber32(sd, numFolders)); | |
| 607 { | |
| 608 RINOK(SzReadSwitch(sd)); | |
| 609 | |
| 610 MY_ALLOC(CFolder, *folders, (size_t)*numFolders, allocFunc); | |
| 611 | |
| 612 for(i = 0; i < *numFolders; i++) | |
| 613 SzFolderInit((*folders) + i); | |
| 614 | |
| 615 for(i = 0; i < *numFolders; i++) | |
| 616 { | |
| 617 RINOK(SzGetNextFolderItem(sd, (*folders) + i, allocFunc)); | |
| 618 } | |
| 619 } | |
| 620 | |
| 621 RINOK(SzWaitAttribute(sd, k7zIdCodersUnPackSize)); | |
| 622 | |
| 623 for(i = 0; i < *numFolders; i++) | |
| 624 { | |
| 625 UInt32 j; | |
| 626 CFolder *folder = (*folders) + i; | |
| 627 UInt32 numOutStreams = SzFolderGetNumOutStreams(folder); | |
| 628 | |
| 629 MY_ALLOC(CFileSize, folder->UnPackSizes, (size_t)numOutStreams, allocFunc); | |
| 630 | |
| 631 for(j = 0; j < numOutStreams; j++) | |
| 632 { | |
| 633 RINOK(SzReadSize(sd, folder->UnPackSizes + j)); | |
| 634 } | |
| 635 } | |
| 636 | |
| 637 for (;;) | |
| 638 { | |
| 639 UInt64 type; | |
| 640 RINOK(SzReadID(sd, &type)); | |
| 641 if (type == k7zIdEnd) | |
| 642 return SZ_OK; | |
| 643 if (type == k7zIdCRC) | |
| 644 { | |
| 645 SZ_RESULT res; | |
| 646 Byte *crcsDefined = 0; | |
| 647 UInt32 *crcs = 0; | |
| 648 res = SzReadHashDigests(sd, *numFolders, &crcsDefined, &crcs, allocTemp->A
lloc); | |
| 649 if (res == SZ_OK) | |
| 650 { | |
| 651 for(i = 0; i < *numFolders; i++) | |
| 652 { | |
| 653 CFolder *folder = (*folders) + i; | |
| 654 folder->UnPackCRCDefined = crcsDefined[i]; | |
| 655 folder->UnPackCRC = crcs[i]; | |
| 656 } | |
| 657 } | |
| 658 allocTemp->Free(crcs); | |
| 659 allocTemp->Free(crcsDefined); | |
| 660 RINOK(res); | |
| 661 continue; | |
| 662 } | |
| 663 RINOK(SzSkeepData(sd)); | |
| 664 } | |
| 665 } | |
| 666 | |
| 667 SZ_RESULT SzReadSubStreamsInfo( | |
| 668 CSzData *sd, | |
| 669 UInt32 numFolders, | |
| 670 CFolder *folders, | |
| 671 UInt32 *numUnPackStreams, | |
| 672 CFileSize **unPackSizes, | |
| 673 Byte **digestsDefined, | |
| 674 UInt32 **digests, | |
| 675 ISzAlloc *allocTemp) | |
| 676 { | |
| 677 UInt64 type = 0; | |
| 678 UInt32 i; | |
| 679 UInt32 si = 0; | |
| 680 UInt32 numDigests = 0; | |
| 681 | |
| 682 for(i = 0; i < numFolders; i++) | |
| 683 folders[i].NumUnPackStreams = 1; | |
| 684 *numUnPackStreams = numFolders; | |
| 685 | |
| 686 for (;;) | |
| 687 { | |
| 688 RINOK(SzReadID(sd, &type)); | |
| 689 if (type == k7zIdNumUnPackStream) | |
| 690 { | |
| 691 *numUnPackStreams = 0; | |
| 692 for(i = 0; i < numFolders; i++) | |
| 693 { | |
| 694 UInt32 numStreams; | |
| 695 RINOK(SzReadNumber32(sd, &numStreams)); | |
| 696 folders[i].NumUnPackStreams = numStreams; | |
| 697 *numUnPackStreams += numStreams; | |
| 698 } | |
| 699 continue; | |
| 700 } | |
| 701 if (type == k7zIdCRC || type == k7zIdSize) | |
| 702 break; | |
| 703 if (type == k7zIdEnd) | |
| 704 break; | |
| 705 RINOK(SzSkeepData(sd)); | |
| 706 } | |
| 707 | |
| 708 if (*numUnPackStreams == 0) | |
| 709 { | |
| 710 *unPackSizes = 0; | |
| 711 *digestsDefined = 0; | |
| 712 *digests = 0; | |
| 713 } | |
| 714 else | |
| 715 { | |
| 716 *unPackSizes = (CFileSize *)allocTemp->Alloc((size_t)*numUnPackStreams * siz
eof(CFileSize)); | |
| 717 RINOM(*unPackSizes); | |
| 718 *digestsDefined = (Byte *)allocTemp->Alloc((size_t)*numUnPackStreams * sizeo
f(Byte)); | |
| 719 RINOM(*digestsDefined); | |
| 720 *digests = (UInt32 *)allocTemp->Alloc((size_t)*numUnPackStreams * sizeof(UIn
t32)); | |
| 721 RINOM(*digests); | |
| 722 } | |
| 723 | |
| 724 for(i = 0; i < numFolders; i++) | |
| 725 { | |
| 726 /* | |
| 727 v3.13 incorrectly worked with empty folders | |
| 728 v4.07: we check that folder is empty | |
| 729 */ | |
| 730 CFileSize sum = 0; | |
| 731 UInt32 j; | |
| 732 UInt32 numSubstreams = folders[i].NumUnPackStreams; | |
| 733 if (numSubstreams == 0) | |
| 734 continue; | |
| 735 if (type == k7zIdSize) | |
| 736 for (j = 1; j < numSubstreams; j++) | |
| 737 { | |
| 738 CFileSize size; | |
| 739 RINOK(SzReadSize(sd, &size)); | |
| 740 (*unPackSizes)[si++] = size; | |
| 741 sum += size; | |
| 742 } | |
| 743 (*unPackSizes)[si++] = SzFolderGetUnPackSize(folders + i) - sum; | |
| 744 } | |
| 745 if (type == k7zIdSize) | |
| 746 { | |
| 747 RINOK(SzReadID(sd, &type)); | |
| 748 } | |
| 749 | |
| 750 for(i = 0; i < *numUnPackStreams; i++) | |
| 751 { | |
| 752 (*digestsDefined)[i] = 0; | |
| 753 (*digests)[i] = 0; | |
| 754 } | |
| 755 | |
| 756 | |
| 757 for(i = 0; i < numFolders; i++) | |
| 758 { | |
| 759 UInt32 numSubstreams = folders[i].NumUnPackStreams; | |
| 760 if (numSubstreams != 1 || !folders[i].UnPackCRCDefined) | |
| 761 numDigests += numSubstreams; | |
| 762 } | |
| 763 | |
| 764 | |
| 765 si = 0; | |
| 766 for (;;) | |
| 767 { | |
| 768 if (type == k7zIdCRC) | |
| 769 { | |
| 770 int digestIndex = 0; | |
| 771 Byte *digestsDefined2 = 0; | |
| 772 UInt32 *digests2 = 0; | |
| 773 SZ_RESULT res = SzReadHashDigests(sd, numDigests, &digestsDefined2, &diges
ts2, allocTemp->Alloc); | |
| 774 if (res == SZ_OK) | |
| 775 { | |
| 776 for (i = 0; i < numFolders; i++) | |
| 777 { | |
| 778 CFolder *folder = folders + i; | |
| 779 UInt32 numSubstreams = folder->NumUnPackStreams; | |
| 780 if (numSubstreams == 1 && folder->UnPackCRCDefined) | |
| 781 { | |
| 782 (*digestsDefined)[si] = 1; | |
| 783 (*digests)[si] = folder->UnPackCRC; | |
| 784 si++; | |
| 785 } | |
| 786 else | |
| 787 { | |
| 788 UInt32 j; | |
| 789 for (j = 0; j < numSubstreams; j++, digestIndex++) | |
| 790 { | |
| 791 (*digestsDefined)[si] = digestsDefined2[digestIndex]; | |
| 792 (*digests)[si] = digests2[digestIndex]; | |
| 793 si++; | |
| 794 } | |
| 795 } | |
| 796 } | |
| 797 } | |
| 798 allocTemp->Free(digestsDefined2); | |
| 799 allocTemp->Free(digests2); | |
| 800 RINOK(res); | |
| 801 } | |
| 802 else if (type == k7zIdEnd) | |
| 803 return SZ_OK; | |
| 804 else | |
| 805 { | |
| 806 RINOK(SzSkeepData(sd)); | |
| 807 } | |
| 808 RINOK(SzReadID(sd, &type)); | |
| 809 } | |
| 810 } | |
| 811 | |
| 812 | |
| 813 SZ_RESULT SzReadStreamsInfo( | |
| 814 CSzData *sd, | |
| 815 CFileSize *dataOffset, | |
| 816 CArchiveDatabase *db, | |
| 817 UInt32 *numUnPackStreams, | |
| 818 CFileSize **unPackSizes, /* allocTemp */ | |
| 819 Byte **digestsDefined, /* allocTemp */ | |
| 820 UInt32 **digests, /* allocTemp */ | |
| 821 void * (*allocFunc)(size_t size), | |
| 822 ISzAlloc *allocTemp) | |
| 823 { | |
| 824 for (;;) | |
| 825 { | |
| 826 UInt64 type; | |
| 827 RINOK(SzReadID(sd, &type)); | |
| 828 if ((UInt64)(int)type != type) | |
| 829 return SZE_FAIL; | |
| 830 switch((int)type) | |
| 831 { | |
| 832 case k7zIdEnd: | |
| 833 return SZ_OK; | |
| 834 case k7zIdPackInfo: | |
| 835 { | |
| 836 RINOK(SzReadPackInfo(sd, dataOffset, &db->NumPackStreams, | |
| 837 &db->PackSizes, &db->PackCRCsDefined, &db->PackCRCs, allocFunc)); | |
| 838 break; | |
| 839 } | |
| 840 case k7zIdUnPackInfo: | |
| 841 { | |
| 842 RINOK(SzReadUnPackInfo(sd, &db->NumFolders, &db->Folders, allocFunc, all
ocTemp)); | |
| 843 break; | |
| 844 } | |
| 845 case k7zIdSubStreamsInfo: | |
| 846 { | |
| 847 RINOK(SzReadSubStreamsInfo(sd, db->NumFolders, db->Folders, | |
| 848 numUnPackStreams, unPackSizes, digestsDefined, digests, allocTemp)); | |
| 849 break; | |
| 850 } | |
| 851 default: | |
| 852 return SZE_FAIL; | |
| 853 } | |
| 854 } | |
| 855 } | |
| 856 | |
| 857 Byte kUtf8Limits[5] = { 0xC0, 0xE0, 0xF0, 0xF8, 0xFC }; | |
| 858 | |
| 859 SZ_RESULT SzReadFileNames(CSzData *sd, UInt32 numFiles, CFileItem *files, | |
| 860 void * (*allocFunc)(size_t size)) | |
| 861 { | |
| 862 UInt32 i; | |
| 863 for(i = 0; i < numFiles; i++) | |
| 864 { | |
| 865 UInt32 len = 0; | |
| 866 UInt32 pos = 0; | |
| 867 CFileItem *file = files + i; | |
| 868 while(pos + 2 <= sd->Size) | |
| 869 { | |
| 870 int numAdds; | |
| 871 UInt32 value = (UInt32)(sd->Data[pos] | (((UInt32)sd->Data[pos + 1]) << 8)
); | |
| 872 pos += 2; | |
| 873 len++; | |
| 874 if (value == 0) | |
| 875 break; | |
| 876 if (value < 0x80) | |
| 877 continue; | |
| 878 if (value >= 0xD800 && value < 0xE000) | |
| 879 { | |
| 880 UInt32 c2; | |
| 881 if (value >= 0xDC00) | |
| 882 return SZE_ARCHIVE_ERROR; | |
| 883 if (pos + 2 > sd->Size) | |
| 884 return SZE_ARCHIVE_ERROR; | |
| 885 c2 = (UInt32)(sd->Data[pos] | (((UInt32)sd->Data[pos + 1]) << 8)); | |
| 886 pos += 2; | |
| 887 if (c2 < 0xDC00 || c2 >= 0xE000) | |
| 888 return SZE_ARCHIVE_ERROR; | |
| 889 value = ((value - 0xD800) << 10) | (c2 - 0xDC00); | |
| 890 } | |
| 891 for (numAdds = 1; numAdds < 5; numAdds++) | |
| 892 if (value < (((UInt32)1) << (numAdds * 5 + 6))) | |
| 893 break; | |
| 894 len += numAdds; | |
| 895 } | |
| 896 | |
| 897 MY_ALLOC(char, file->Name, (size_t)len, allocFunc); | |
| 898 | |
| 899 len = 0; | |
| 900 while(2 <= sd->Size) | |
| 901 { | |
| 902 int numAdds; | |
| 903 UInt32 value = (UInt32)(sd->Data[0] | (((UInt32)sd->Data[1]) << 8)); | |
| 904 SzSkeepDataSize(sd, 2); | |
| 905 if (value < 0x80) | |
| 906 { | |
| 907 file->Name[len++] = (char)value; | |
| 908 if (value == 0) | |
| 909 break; | |
| 910 continue; | |
| 911 } | |
| 912 if (value >= 0xD800 && value < 0xE000) | |
| 913 { | |
| 914 UInt32 c2 = (UInt32)(sd->Data[0] | (((UInt32)sd->Data[1]) << 8)); | |
| 915 SzSkeepDataSize(sd, 2); | |
| 916 value = ((value - 0xD800) << 10) | (c2 - 0xDC00); | |
| 917 } | |
| 918 for (numAdds = 1; numAdds < 5; numAdds++) | |
| 919 if (value < (((UInt32)1) << (numAdds * 5 + 6))) | |
| 920 break; | |
| 921 file->Name[len++] = (char)(kUtf8Limits[numAdds - 1] + (value >> (6 * numAd
ds))); | |
| 922 do | |
| 923 { | |
| 924 numAdds--; | |
| 925 file->Name[len++] = (char)(0x80 + ((value >> (6 * numAdds)) & 0x3F)); | |
| 926 } | |
| 927 while(numAdds > 0); | |
| 928 | |
| 929 len += numAdds; | |
| 930 } | |
| 931 } | |
| 932 return SZ_OK; | |
| 933 } | |
| 934 | |
| 935 SZ_RESULT SzReadHeader2( | |
| 936 CSzData *sd, | |
| 937 CArchiveDatabaseEx *db, /* allocMain */ | |
| 938 CFileSize **unPackSizes, /* allocTemp */ | |
| 939 Byte **digestsDefined, /* allocTemp */ | |
| 940 UInt32 **digests, /* allocTemp */ | |
| 941 Byte **emptyStreamVector, /* allocTemp */ | |
| 942 Byte **emptyFileVector, /* allocTemp */ | |
| 943 Byte **lwtVector, /* allocTemp */ | |
| 944 ISzAlloc *allocMain, | |
| 945 ISzAlloc *allocTemp) | |
| 946 { | |
| 947 UInt64 type; | |
| 948 UInt32 numUnPackStreams = 0; | |
| 949 UInt32 numFiles = 0; | |
| 950 CFileItem *files = 0; | |
| 951 UInt32 numEmptyStreams = 0; | |
| 952 UInt32 i; | |
| 953 | |
| 954 RINOK(SzReadID(sd, &type)); | |
| 955 | |
| 956 if (type == k7zIdArchiveProperties) | |
| 957 { | |
| 958 RINOK(SzReadArchiveProperties(sd)); | |
| 959 RINOK(SzReadID(sd, &type)); | |
| 960 } | |
| 961 | |
| 962 | |
| 963 if (type == k7zIdMainStreamsInfo) | |
| 964 { | |
| 965 RINOK(SzReadStreamsInfo(sd, | |
| 966 &db->ArchiveInfo.DataStartPosition, | |
| 967 &db->Database, | |
| 968 &numUnPackStreams, | |
| 969 unPackSizes, | |
| 970 digestsDefined, | |
| 971 digests, allocMain->Alloc, allocTemp)); | |
| 972 db->ArchiveInfo.DataStartPosition += db->ArchiveInfo.StartPositionAfterHeade
r; | |
| 973 RINOK(SzReadID(sd, &type)); | |
| 974 } | |
| 975 | |
| 976 if (type == k7zIdEnd) | |
| 977 return SZ_OK; | |
| 978 if (type != k7zIdFilesInfo) | |
| 979 return SZE_ARCHIVE_ERROR; | |
| 980 | |
| 981 RINOK(SzReadNumber32(sd, &numFiles)); | |
| 982 db->Database.NumFiles = numFiles; | |
| 983 | |
| 984 MY_ALLOC(CFileItem, files, (size_t)numFiles, allocMain->Alloc); | |
| 985 | |
| 986 db->Database.Files = files; | |
| 987 for(i = 0; i < numFiles; i++) | |
| 988 SzFileInit(files + i); | |
| 989 | |
| 990 for (;;) | |
| 991 { | |
| 992 UInt64 type; | |
| 993 UInt64 size; | |
| 994 RINOK(SzReadID(sd, &type)); | |
| 995 if (type == k7zIdEnd) | |
| 996 break; | |
| 997 RINOK(SzReadNumber(sd, &size)); | |
| 998 | |
| 999 if ((UInt64)(int)type != type) | |
| 1000 { | |
| 1001 RINOK(SzSkeepDataSize(sd, size)); | |
| 1002 } | |
| 1003 else | |
| 1004 switch((int)type) | |
| 1005 { | |
| 1006 case k7zIdName: | |
| 1007 { | |
| 1008 RINOK(SzReadSwitch(sd)); | |
| 1009 RINOK(SzReadFileNames(sd, numFiles, files, allocMain->Alloc)) | |
| 1010 break; | |
| 1011 } | |
| 1012 case k7zIdEmptyStream: | |
| 1013 { | |
| 1014 RINOK(SzReadBoolVector(sd, numFiles, emptyStreamVector, allocTemp->Alloc
)); | |
| 1015 numEmptyStreams = 0; | |
| 1016 for (i = 0; i < numFiles; i++) | |
| 1017 if ((*emptyStreamVector)[i]) | |
| 1018 numEmptyStreams++; | |
| 1019 break; | |
| 1020 } | |
| 1021 case k7zIdEmptyFile: | |
| 1022 { | |
| 1023 RINOK(SzReadBoolVector(sd, numEmptyStreams, emptyFileVector, allocTemp->
Alloc)); | |
| 1024 break; | |
| 1025 } | |
| 1026 case k7zIdLastWriteTime: | |
| 1027 { | |
| 1028 RINOK(SzReadBoolVector2(sd, numFiles, lwtVector, allocTemp->Alloc)); | |
| 1029 RINOK(SzReadSwitch(sd)); | |
| 1030 for (i = 0; i < numFiles; i++) | |
| 1031 { | |
| 1032 CFileItem *f = &files[i]; | |
| 1033 Byte defined = (*lwtVector)[i]; | |
| 1034 f->IsLastWriteTimeDefined = defined; | |
| 1035 f->LastWriteTime.Low = f->LastWriteTime.High = 0; | |
| 1036 if (defined) | |
| 1037 { | |
| 1038 RINOK(SzReadUInt32(sd, &f->LastWriteTime.Low)); | |
| 1039 RINOK(SzReadUInt32(sd, &f->LastWriteTime.High)); | |
| 1040 } | |
| 1041 } | |
| 1042 break; | |
| 1043 } | |
| 1044 default: | |
| 1045 { | |
| 1046 RINOK(SzSkeepDataSize(sd, size)); | |
| 1047 } | |
| 1048 } | |
| 1049 } | |
| 1050 | |
| 1051 { | |
| 1052 UInt32 emptyFileIndex = 0; | |
| 1053 UInt32 sizeIndex = 0; | |
| 1054 for(i = 0; i < numFiles; i++) | |
| 1055 { | |
| 1056 CFileItem *file = files + i; | |
| 1057 file->IsAnti = 0; | |
| 1058 if (*emptyStreamVector == 0) | |
| 1059 file->HasStream = 1; | |
| 1060 else | |
| 1061 file->HasStream = (Byte)((*emptyStreamVector)[i] ? 0 : 1); | |
| 1062 if(file->HasStream) | |
| 1063 { | |
| 1064 file->IsDirectory = 0; | |
| 1065 file->Size = (*unPackSizes)[sizeIndex]; | |
| 1066 file->FileCRC = (*digests)[sizeIndex]; | |
| 1067 file->IsFileCRCDefined = (Byte)(*digestsDefined)[sizeIndex]; | |
| 1068 sizeIndex++; | |
| 1069 } | |
| 1070 else | |
| 1071 { | |
| 1072 if (*emptyFileVector == 0) | |
| 1073 file->IsDirectory = 1; | |
| 1074 else | |
| 1075 file->IsDirectory = (Byte)((*emptyFileVector)[emptyFileIndex] ? 0 : 1)
; | |
| 1076 emptyFileIndex++; | |
| 1077 file->Size = 0; | |
| 1078 file->IsFileCRCDefined = 0; | |
| 1079 } | |
| 1080 } | |
| 1081 } | |
| 1082 return SzArDbExFill(db, allocMain->Alloc); | |
| 1083 } | |
| 1084 | |
| 1085 SZ_RESULT SzReadHeader( | |
| 1086 CSzData *sd, | |
| 1087 CArchiveDatabaseEx *db, | |
| 1088 ISzAlloc *allocMain, | |
| 1089 ISzAlloc *allocTemp) | |
| 1090 { | |
| 1091 CFileSize *unPackSizes = 0; | |
| 1092 Byte *digestsDefined = 0; | |
| 1093 UInt32 *digests = 0; | |
| 1094 Byte *emptyStreamVector = 0; | |
| 1095 Byte *emptyFileVector = 0; | |
| 1096 Byte *lwtVector = 0; | |
| 1097 SZ_RESULT res = SzReadHeader2(sd, db, | |
| 1098 &unPackSizes, &digestsDefined, &digests, | |
| 1099 &emptyStreamVector, &emptyFileVector, &lwtVector, | |
| 1100 allocMain, allocTemp); | |
| 1101 allocTemp->Free(unPackSizes); | |
| 1102 allocTemp->Free(digestsDefined); | |
| 1103 allocTemp->Free(digests); | |
| 1104 allocTemp->Free(emptyStreamVector); | |
| 1105 allocTemp->Free(emptyFileVector); | |
| 1106 allocTemp->Free(lwtVector); | |
| 1107 return res; | |
| 1108 } | |
| 1109 | |
| 1110 SZ_RESULT SzReadAndDecodePackedStreams2( | |
| 1111 ISzInStream *inStream, | |
| 1112 CSzData *sd, | |
| 1113 CSzByteBuffer *outBuffer, | |
| 1114 CFileSize baseOffset, | |
| 1115 CArchiveDatabase *db, | |
| 1116 CFileSize **unPackSizes, | |
| 1117 Byte **digestsDefined, | |
| 1118 UInt32 **digests, | |
| 1119 #ifndef _LZMA_IN_CB | |
| 1120 Byte **inBuffer, | |
| 1121 #endif | |
| 1122 ISzAlloc *allocTemp) | |
| 1123 { | |
| 1124 | |
| 1125 UInt32 numUnPackStreams = 0; | |
| 1126 CFileSize dataStartPos; | |
| 1127 CFolder *folder; | |
| 1128 #ifndef _LZMA_IN_CB | |
| 1129 CFileSize packSize = 0; | |
| 1130 UInt32 i = 0; | |
| 1131 #endif | |
| 1132 CFileSize unPackSize; | |
| 1133 SZ_RESULT res; | |
| 1134 | |
| 1135 RINOK(SzReadStreamsInfo(sd, &dataStartPos, db, | |
| 1136 &numUnPackStreams, unPackSizes, digestsDefined, digests, | |
| 1137 allocTemp->Alloc, allocTemp)); | |
| 1138 | |
| 1139 dataStartPos += baseOffset; | |
| 1140 if (db->NumFolders != 1) | |
| 1141 return SZE_ARCHIVE_ERROR; | |
| 1142 | |
| 1143 folder = db->Folders; | |
| 1144 unPackSize = SzFolderGetUnPackSize(folder); | |
| 1145 | |
| 1146 RINOK(inStream->Seek(inStream, dataStartPos)); | |
| 1147 | |
| 1148 #ifndef _LZMA_IN_CB | |
| 1149 for (i = 0; i < db->NumPackStreams; i++) | |
| 1150 packSize += db->PackSizes[i]; | |
| 1151 | |
| 1152 MY_ALLOC(Byte, *inBuffer, (size_t)packSize, allocTemp->Alloc); | |
| 1153 | |
| 1154 RINOK(SafeReadDirect(inStream, *inBuffer, (size_t)packSize)); | |
| 1155 #endif | |
| 1156 | |
| 1157 if (!SzByteBufferCreate(outBuffer, (size_t)unPackSize, allocTemp->Alloc)) | |
| 1158 return SZE_OUTOFMEMORY; | |
| 1159 | |
| 1160 res = SzDecode(db->PackSizes, folder, | |
| 1161 #ifdef _LZMA_IN_CB | |
| 1162 inStream, dataStartPos, | |
| 1163 #else | |
| 1164 *inBuffer, | |
| 1165 #endif | |
| 1166 outBuffer->Items, (size_t)unPackSize, allocTemp); | |
| 1167 RINOK(res) | |
| 1168 if (folder->UnPackCRCDefined) | |
| 1169 if (CrcCalc(outBuffer->Items, (size_t)unPackSize) != folder->UnPackCRC) | |
| 1170 return SZE_FAIL; | |
| 1171 return SZ_OK; | |
| 1172 } | |
| 1173 | |
| 1174 SZ_RESULT SzReadAndDecodePackedStreams( | |
| 1175 ISzInStream *inStream, | |
| 1176 CSzData *sd, | |
| 1177 CSzByteBuffer *outBuffer, | |
| 1178 CFileSize baseOffset, | |
| 1179 ISzAlloc *allocTemp) | |
| 1180 { | |
| 1181 CArchiveDatabase db; | |
| 1182 CFileSize *unPackSizes = 0; | |
| 1183 Byte *digestsDefined = 0; | |
| 1184 UInt32 *digests = 0; | |
| 1185 #ifndef _LZMA_IN_CB | |
| 1186 Byte *inBuffer = 0; | |
| 1187 #endif | |
| 1188 SZ_RESULT res; | |
| 1189 SzArchiveDatabaseInit(&db); | |
| 1190 res = SzReadAndDecodePackedStreams2(inStream, sd, outBuffer, baseOffset, | |
| 1191 &db, &unPackSizes, &digestsDefined, &digests, | |
| 1192 #ifndef _LZMA_IN_CB | |
| 1193 &inBuffer, | |
| 1194 #endif | |
| 1195 allocTemp); | |
| 1196 SzArchiveDatabaseFree(&db, allocTemp->Free); | |
| 1197 allocTemp->Free(unPackSizes); | |
| 1198 allocTemp->Free(digestsDefined); | |
| 1199 allocTemp->Free(digests); | |
| 1200 #ifndef _LZMA_IN_CB | |
| 1201 allocTemp->Free(inBuffer); | |
| 1202 #endif | |
| 1203 return res; | |
| 1204 } | |
| 1205 | |
| 1206 SZ_RESULT SzArchiveOpen2( | |
| 1207 ISzInStream *inStream, | |
| 1208 CArchiveDatabaseEx *db, | |
| 1209 ISzAlloc *allocMain, | |
| 1210 ISzAlloc *allocTemp) | |
| 1211 { | |
| 1212 Byte signature[k7zSignatureSize]; | |
| 1213 Byte version; | |
| 1214 UInt32 crcFromArchive; | |
| 1215 UInt64 nextHeaderOffset; | |
| 1216 UInt64 nextHeaderSize; | |
| 1217 UInt32 nextHeaderCRC; | |
| 1218 UInt32 crc = 0; | |
| 1219 CFileSize pos = 0; | |
| 1220 CSzByteBuffer buffer; | |
| 1221 CSzData sd; | |
| 1222 SZ_RESULT res; | |
| 1223 | |
| 1224 RINOK(SafeReadDirect(inStream, signature, k7zSignatureSize)); | |
| 1225 | |
| 1226 if (!TestSignatureCandidate(signature)) | |
| 1227 return SZE_ARCHIVE_ERROR; | |
| 1228 | |
| 1229 /* | |
| 1230 db.Clear(); | |
| 1231 db.ArchiveInfo.StartPosition = _arhiveBeginStreamPosition; | |
| 1232 */ | |
| 1233 RINOK(SafeReadDirectByte(inStream, &version)); | |
| 1234 if (version != k7zMajorVersion) | |
| 1235 return SZE_ARCHIVE_ERROR; | |
| 1236 RINOK(SafeReadDirectByte(inStream, &version)); | |
| 1237 | |
| 1238 RINOK(SafeReadDirectUInt32(inStream, &crcFromArchive, &crc)); | |
| 1239 | |
| 1240 crc = CRC_INIT_VAL; | |
| 1241 RINOK(SafeReadDirectUInt64(inStream, &nextHeaderOffset, &crc)); | |
| 1242 RINOK(SafeReadDirectUInt64(inStream, &nextHeaderSize, &crc)); | |
| 1243 RINOK(SafeReadDirectUInt32(inStream, &nextHeaderCRC, &crc)); | |
| 1244 | |
| 1245 pos = k7zStartHeaderSize; | |
| 1246 db->ArchiveInfo.StartPositionAfterHeader = pos; | |
| 1247 | |
| 1248 if (CRC_GET_DIGEST(crc) != crcFromArchive) | |
| 1249 return SZE_ARCHIVE_ERROR; | |
| 1250 | |
| 1251 if (nextHeaderSize == 0) | |
| 1252 return SZ_OK; | |
| 1253 | |
| 1254 RINOK(inStream->Seek(inStream, (CFileSize)(pos + nextHeaderOffset))); | |
| 1255 | |
| 1256 if (!SzByteBufferCreate(&buffer, (size_t)nextHeaderSize, allocTemp->Alloc)) | |
| 1257 return SZE_OUTOFMEMORY; | |
| 1258 | |
| 1259 res = SafeReadDirect(inStream, buffer.Items, (size_t)nextHeaderSize); | |
| 1260 if (res == SZ_OK) | |
| 1261 { | |
| 1262 res = SZE_ARCHIVE_ERROR; | |
| 1263 if (CrcCalc(buffer.Items, (UInt32)nextHeaderSize) == nextHeaderCRC) | |
| 1264 { | |
| 1265 for (;;) | |
| 1266 { | |
| 1267 UInt64 type; | |
| 1268 sd.Data = buffer.Items; | |
| 1269 sd.Size = buffer.Capacity; | |
| 1270 res = SzReadID(&sd, &type); | |
| 1271 if (res != SZ_OK) | |
| 1272 break; | |
| 1273 if (type == k7zIdHeader) | |
| 1274 { | |
| 1275 res = SzReadHeader(&sd, db, allocMain, allocTemp); | |
| 1276 break; | |
| 1277 } | |
| 1278 if (type != k7zIdEncodedHeader) | |
| 1279 { | |
| 1280 res = SZE_ARCHIVE_ERROR; | |
| 1281 break; | |
| 1282 } | |
| 1283 { | |
| 1284 CSzByteBuffer outBuffer; | |
| 1285 res = SzReadAndDecodePackedStreams(inStream, &sd, &outBuffer, | |
| 1286 db->ArchiveInfo.StartPositionAfterHeader, | |
| 1287 allocTemp); | |
| 1288 if (res != SZ_OK) | |
| 1289 { | |
| 1290 SzByteBufferFree(&outBuffer, allocTemp->Free); | |
| 1291 break; | |
| 1292 } | |
| 1293 SzByteBufferFree(&buffer, allocTemp->Free); | |
| 1294 buffer.Items = outBuffer.Items; | |
| 1295 buffer.Capacity = outBuffer.Capacity; | |
| 1296 } | |
| 1297 } | |
| 1298 } | |
| 1299 } | |
| 1300 SzByteBufferFree(&buffer, allocTemp->Free); | |
| 1301 return res; | |
| 1302 } | |
| 1303 | |
| 1304 SZ_RESULT SzArchiveOpen( | |
| 1305 ISzInStream *inStream, | |
| 1306 CArchiveDatabaseEx *db, | |
| 1307 ISzAlloc *allocMain, | |
| 1308 ISzAlloc *allocTemp) | |
| 1309 { | |
| 1310 SZ_RESULT res = SzArchiveOpen2(inStream, db, allocMain, allocTemp); | |
| 1311 if (res != SZ_OK) | |
| 1312 SzArDbExFree(db, allocMain->Free); | |
| 1313 return res; | |
| 1314 } | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 10152012:
Second attempt to update lzma_sdk to 9.20 (Closed)
Base URL: http://git.chromium.org/chromium/src.git@master