150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
|
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
|
-
+
+
+
+
+
+
-
+
+
+
+
+
-
+
-
+
-
+
|
return field;
}
@implementation OFZIPArchive
@synthesize delegate = _delegate, archiveComment = _archiveComment;
static void
seekOrThrowInvalidFormat(OFZIPArchive *archive, const uint32_t *diskNumber,
seekOrThrowInvalidFormat(OFZIPArchive *archive, const uint32_t *diskNumberPtr,
OFStreamOffset offset, OFSeekWhence whence)
{
uint32_t diskNumber = 1;
if (diskNumberPtr != NULL) {
diskNumber = *diskNumberPtr;
if (diskNumber != NULL && *diskNumber != archive->_diskNumber) {
if (diskNumber == 0)
diskNumber = 1;
}
if (diskNumberPtr != NULL && diskNumber != archive->_diskNumber) {
OFStream *oldStream = archive->_stream;
OFSeekableStream *stream;
if (archive->_mode != modeRead ||
*diskNumber > archive->_lastDiskNumber)
diskNumber > archive->_lastDiskNumber)
@throw [OFInvalidFormatException exception];
stream = [archive->_delegate archive: archive
wantsPartNumbered: *diskNumber
wantsPartNumbered: diskNumber
lastPartNumber: archive->_lastDiskNumber];
if (stream == nil)
@throw [OFInvalidFormatException exception];
archive->_diskNumber = *diskNumber;
archive->_diskNumber = diskNumber;
archive->_stream = [stream retain];
[oldStream release];
}
@try {
[archive->_stream seekToOffset: offset whence: whence];
} @catch (OFSeekFailedException *e) {
|
227
228
229
230
231
232
233
234
235
236
237
238
239
240
|
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
|
+
+
+
+
|
if (_mode == modeRead || _mode == modeAppend) {
if (![stream isKindOfClass: [OFSeekableStream class]])
@throw [OFInvalidArgumentException exception];
[self of_readZIPInfo];
[self of_readEntries];
} else if (_mode == modeWrite) {
_diskNumber = 1;
_lastDiskNumber = 1;
_centralDirectoryDisk = 1;
}
if (_mode == modeAppend) {
_offset = _centralDirectoryOffset;
seekOrThrowInvalidFormat(self, NULL,
(OFStreamOffset)_offset, OFSeekSet);
}
|
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
366
367
368
369
370
371
372
373
374
375
376
|
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
|
-
+
+
-
-
+
+
+
+
|
/*
* FIXME: Handle number of the disk containing ZIP64 end of
* central directory record.
*/
diskNumber = [_stream readLittleEndianInt32];
offset64 = [_stream readLittleEndianInt64];
_lastDiskNumber = [_stream readLittleEndianInt32];
_diskNumber = _lastDiskNumber = [_stream readLittleEndianInt32];
if (_lastDiskNumber == 0)
@throw [OFInvalidFormatException exception];
_lastDiskNumber--;
if ([_stream readLittleEndianInt32] != _diskNumber)
diskNumber = [_stream readLittleEndianInt32];
if (diskNumber == 0)
diskNumber = 1;
if (diskNumber != _diskNumber)
@throw [OFInvalidFormatException exception];
_centralDirectoryDisk = [_stream readLittleEndianInt32];
_centralDirectoryEntriesInDisk =
[_stream readLittleEndianInt64];
_centralDirectoryEntries = [_stream readLittleEndianInt64];
_centralDirectorySize = [_stream readLittleEndianInt64];
|
575
576
577
578
579
580
581
582
583
584
585
586
587
588
|
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
|
+
|
entry.versionMadeBy = (entry.versionMadeBy & 0xFF00) | 45;
entry.minVersionNeeded = (entry.minVersionNeeded & 0xFF00) | 45;
entry.compressedSize = 0;
entry.uncompressedSize = 0;
entry.CRC32 = 0;
entry.generalPurposeBitFlag |= (seekable ? 0 : (1u << 3)) | (1u << 11);
entry.of_startDiskNumber = _diskNumber;
entry.of_localFileHeaderOffset = _offset;
[_stream writeLittleEndianInt32: 0x04034B50];
[_stream writeLittleEndianInt16: entry.minVersionNeeded];
[_stream writeLittleEndianInt16: entry.generalPurposeBitFlag];
[_stream writeLittleEndianInt16: entry.compressionMethod];
[_stream writeLittleEndianInt16: entry.of_lastModifiedFileTime];
|