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{
self = [super init];
@try {
_stream = [stream retain];
if ([mode isEqual: @"r"])
_mode = OF_TAR_ARCHIVE_MODE_READ;
else if ([mode isEqual: @"w"])
_mode = OF_TAR_ARCHIVE_MODE_WRITE;
else if ([mode isEqual: @"a"])
_mode = OF_TAR_ARCHIVE_MODE_APPEND;
else
@throw [OFInvalidArgumentException exception];
if (_mode == OF_TAR_ARCHIVE_MODE_APPEND) {
uint32_t buffer[1024 / sizeof(uint32_t)];
bool empty = true;
if (![_stream isKindOfClass: [OFSeekableStream class]])
@throw [OFInvalidArgumentException exception];
[(OFSeekableStream *)_stream seekToOffset: -1024
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{
self = [super init];
@try {
_stream = [stream retain];
if ([mode isEqual: @"r"])
_mode = OFTarArchiveModeRead;
else if ([mode isEqual: @"w"])
_mode = OFTarArchiveModeWrite;
else if ([mode isEqual: @"a"])
_mode = OFTarArchiveModeAppend;
else
@throw [OFInvalidArgumentException exception];
if (_mode == OFTarArchiveModeAppend) {
uint32_t buffer[1024 / sizeof(uint32_t)];
bool empty = true;
if (![_stream isKindOfClass: [OFSeekableStream class]])
@throw [OFInvalidArgumentException exception];
[(OFSeekableStream *)_stream seekToOffset: -1024
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- (OFTarArchiveEntry *)nextEntry
{
OFTarArchiveEntry *entry;
uint32_t buffer[512 / sizeof(uint32_t)];
bool empty = true;
if (_mode != OF_TAR_ARCHIVE_MODE_READ)
@throw [OFInvalidArgumentException exception];
[(OFTarArchiveFileReadStream *)_lastReturnedStream of_skip];
@try {
[_lastReturnedStream close];
} @catch (OFNotOpenException *e) {
/* Might have already been closed by the user - that's fine. */
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- (OFTarArchiveEntry *)nextEntry
{
OFTarArchiveEntry *entry;
uint32_t buffer[512 / sizeof(uint32_t)];
bool empty = true;
if (_mode != OFTarArchiveModeRead)
@throw [OFInvalidArgumentException exception];
[(OFTarArchiveFileReadStream *)_lastReturnedStream of_skip];
@try {
[_lastReturnedStream close];
} @catch (OFNotOpenException *e) {
/* Might have already been closed by the user - that's fine. */
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entry: entry];
return entry;
}
- (OFStream *)streamForReadingCurrentEntry
{
if (_mode != OF_TAR_ARCHIVE_MODE_READ)
@throw [OFInvalidArgumentException exception];
if (_lastReturnedStream == nil)
@throw [OFInvalidArgumentException exception];
return [[(OFTarArchiveFileReadStream *)_lastReturnedStream
retain] autorelease];
}
- (OFStream *)streamForWritingEntry: (OFTarArchiveEntry *)entry
{
void *pool;
if (_mode != OF_TAR_ARCHIVE_MODE_WRITE &&
_mode != OF_TAR_ARCHIVE_MODE_APPEND)
@throw [OFInvalidArgumentException exception];
pool = objc_autoreleasePoolPush();
@try {
[_lastReturnedStream close];
} @catch (OFNotOpenException *e) {
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<
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entry: entry];
return entry;
}
- (OFStream *)streamForReadingCurrentEntry
{
if (_mode != OFTarArchiveModeRead)
@throw [OFInvalidArgumentException exception];
if (_lastReturnedStream == nil)
@throw [OFInvalidArgumentException exception];
return [[(OFTarArchiveFileReadStream *)_lastReturnedStream
retain] autorelease];
}
- (OFStream *)streamForWritingEntry: (OFTarArchiveEntry *)entry
{
void *pool;
if (_mode != OFTarArchiveModeWrite && _mode != OFTarArchiveModeAppend)
@throw [OFInvalidArgumentException exception];
pool = objc_autoreleasePoolPush();
@try {
[_lastReturnedStream close];
} @catch (OFNotOpenException *e) {
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[_lastReturnedStream close];
} @catch (OFNotOpenException *e) {
/* Might have already been closed by the user - that's fine. */
}
[_lastReturnedStream release];
_lastReturnedStream = nil;
if (_mode == OF_TAR_ARCHIVE_MODE_WRITE ||
_mode == OF_TAR_ARCHIVE_MODE_APPEND) {
char buffer[1024];
memset(buffer, '\0', 1024);
[_stream writeBuffer: buffer
length: 1024];
}
[_stream release];
_stream = nil;
}
@end
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<
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[_lastReturnedStream close];
} @catch (OFNotOpenException *e) {
/* Might have already been closed by the user - that's fine. */
}
[_lastReturnedStream release];
_lastReturnedStream = nil;
if (_mode == OFTarArchiveModeWrite || _mode == OFTarArchiveModeAppend) {
char buffer[1024];
memset(buffer, '\0', 1024);
[_stream writeBuffer: buffer length: 1024];
}
[_stream release];
_stream = nil;
}
@end
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