| ︙ | | |
138
139
140
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142
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144
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148
149
150
151
152
|
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
|
-
+
|
*size -= 8;
return field;
}
static void
seekOrThrowInvalidFormat(OFSeekableStream *stream,
OFFileOffset offset, int whence)
OFStreamOffset offset, int whence)
{
@try {
[stream seekToOffset: offset whence: whence];
} @catch (OFSeekFailedException *e) {
if (e.errNo == EINVAL)
@throw [OFInvalidFormatException exception];
|
| ︙ | | |
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
|
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
|
-
+
|
[self of_readZIPInfo];
[self of_readEntries];
}
if (_mode == modeAppend) {
_offset = _centralDirectoryOffset;
seekOrThrowInvalidFormat((OFSeekableStream *)_stream,
(OFFileOffset)_offset, SEEK_SET);
(OFStreamOffset)_offset, SEEK_SET);
}
} @catch (id e) {
/*
* If we are in write or append mode, we do not want -[close]
* to write anything to it on error - after all, it might not
* be a ZIP file which we would destroy otherwise.
*/
|
| ︙ | | |
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
|
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
|
-
+
|
[super dealloc];
}
- (void)of_readZIPInfo
{
void *pool = objc_autoreleasePoolPush();
uint16_t commentLength;
OFFileOffset offset = -22;
OFStreamOffset offset = -22;
bool valid = false;
do {
seekOrThrowInvalidFormat((OFSeekableStream *)_stream,
offset, SEEK_END);
if ([_stream readLittleEndianInt32] == 0x06054B50) {
|
| ︙ | | |
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
|
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
|
-
+
-
+
|
/*
* FIXME: Handle number of the disk containing ZIP64 end of
* central directory record.
*/
[_stream readLittleEndianInt32];
offset64 = [_stream readLittleEndianInt64];
if (offset64 < 0 || (OFFileOffset)offset64 != offset64)
if (offset64 < 0 || (OFStreamOffset)offset64 != offset64)
@throw [OFOutOfRangeException exception];
seekOrThrowInvalidFormat((OFSeekableStream *)_stream,
(OFFileOffset)offset64, SEEK_SET);
(OFStreamOffset)offset64, SEEK_SET);
if ([_stream readLittleEndianInt32] != 0x06064B50)
@throw [OFInvalidFormatException exception];
size = [_stream readLittleEndianInt64];
if (size < 44)
@throw [OFInvalidFormatException exception];
|
| ︙ | | |
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
|
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
|
-
+
-
+
-
+
|
_centralDirectoryEntriesInDisk =
[_stream readLittleEndianInt64];
_centralDirectoryEntries = [_stream readLittleEndianInt64];
_centralDirectorySize = [_stream readLittleEndianInt64];
_centralDirectoryOffset = [_stream readLittleEndianInt64];
if (_centralDirectoryOffset < 0 ||
(OFFileOffset)_centralDirectoryOffset !=
(OFStreamOffset)_centralDirectoryOffset !=
_centralDirectoryOffset)
@throw [OFOutOfRangeException exception];
}
objc_autoreleasePoolPop(pool);
}
- (void)of_readEntries
{
void *pool = objc_autoreleasePoolPush();
if (_centralDirectoryOffset < 0 ||
(OFFileOffset)_centralDirectoryOffset != _centralDirectoryOffset)
(OFStreamOffset)_centralDirectoryOffset != _centralDirectoryOffset)
@throw [OFOutOfRangeException exception];
seekOrThrowInvalidFormat((OFSeekableStream *)_stream,
(OFFileOffset)_centralDirectoryOffset, SEEK_SET);
(OFStreamOffset)_centralDirectoryOffset, SEEK_SET);
for (size_t i = 0; i < _centralDirectoryEntries; i++) {
OFZIPArchiveEntry *entry = [[[OFZIPArchiveEntry alloc]
of_initWithStream: _stream] autorelease];
if ([_pathToEntryMap objectForKey: entry.fileName] != nil)
@throw [OFInvalidFormatException exception];
|
| ︙ | | |
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
|
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
|
-
+
-
+
|
@throw [OFOpenItemFailedException exceptionWithPath: path
mode: @"r"
errNo: ENOENT];
[self of_closeLastReturnedStream];
offset64 = entry.of_localFileHeaderOffset;
if (offset64 < 0 || (OFFileOffset)offset64 != offset64)
if (offset64 < 0 || (OFStreamOffset)offset64 != offset64)
@throw [OFOutOfRangeException exception];
seekOrThrowInvalidFormat((OFSeekableStream *)_stream,
(OFFileOffset)offset64, SEEK_SET);
(OFStreamOffset)offset64, SEEK_SET);
localFileHeader = [[[OFZIPArchiveLocalFileHeader alloc]
initWithStream: _stream] autorelease];
if (![localFileHeader matchesEntry: entry])
@throw [OFInvalidFormatException exception];
if ((localFileHeader->_minVersionNeeded & 0xFF) > 45) {
|
| ︙ | | |