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- (void)of_skip;
@end
OF_DIRECT_MEMBERS
@interface OFLHAArchiveFileWriteStream: OFStream <OFReadyForWritingObserving>
{
OFMutableLHAArchiveEntry *_entry;
of_string_encoding_t _encoding;
OFSeekableStream *_stream;
of_offset_t _headerOffset;
uint32_t _bytesWritten;
uint16_t _CRC16;
}
- (instancetype)of_initWithStream: (OFSeekableStream *)stream
entry: (OFLHAArchiveEntry *)entry
encoding: (of_string_encoding_t)encoding;
@end
@implementation OFLHAArchive
@synthesize encoding = _encoding;
+ (instancetype)archiveWithStream: (OFStream *)stream mode: (OFString *)mode
{
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- (void)of_skip;
@end
OF_DIRECT_MEMBERS
@interface OFLHAArchiveFileWriteStream: OFStream <OFReadyForWritingObserving>
{
OFMutableLHAArchiveEntry *_entry;
OFStringEncoding _encoding;
OFSeekableStream *_stream;
OFFileOffset _headerOffset;
uint32_t _bytesWritten;
uint16_t _CRC16;
}
- (instancetype)of_initWithStream: (OFSeekableStream *)stream
entry: (OFLHAArchiveEntry *)entry
encoding: (OFStringEncoding)encoding;
@end
@implementation OFLHAArchive
@synthesize encoding = _encoding;
+ (instancetype)archiveWithStream: (OFStream *)stream mode: (OFString *)mode
{
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{
self = [super init];
@try {
_stream = [stream retain];
if ([mode isEqual: @"r"])
_mode = OF_LHA_ARCHIVE_MODE_READ;
else if ([mode isEqual: @"w"])
_mode = OF_LHA_ARCHIVE_MODE_WRITE;
else if ([mode isEqual: @"a"])
_mode = OF_LHA_ARCHIVE_MODE_APPEND;
else
@throw [OFInvalidArgumentException exception];
if ((_mode == OF_LHA_ARCHIVE_MODE_WRITE ||
_mode == OF_LHA_ARCHIVE_MODE_APPEND) &&
![_stream isKindOfClass: [OFSeekableStream class]])
@throw [OFInvalidArgumentException exception];
if (_mode == OF_LHA_ARCHIVE_MODE_APPEND)
[(OFSeekableStream *)_stream seekToOffset: 0
whence: SEEK_END];
_encoding = OF_STRING_ENCODING_ISO_8859_1;
} @catch (id e) {
[self release];
@throw e;
}
return self;
}
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{
self = [super init];
@try {
_stream = [stream retain];
if ([mode isEqual: @"r"])
_mode = OFLHAArchiveModeRead;
else if ([mode isEqual: @"w"])
_mode = OFLHAArchiveModeWrite;
else if ([mode isEqual: @"a"])
_mode = OFLHAArchiveModeAppend;
else
@throw [OFInvalidArgumentException exception];
if ((_mode == OFLHAArchiveModeWrite ||
_mode == OFLHAArchiveModeAppend) &&
![_stream isKindOfClass: [OFSeekableStream class]])
@throw [OFInvalidArgumentException exception];
if (_mode == OFLHAArchiveModeAppend)
[(OFSeekableStream *)_stream seekToOffset: 0
whence: SEEK_END];
_encoding = OFStringEncodingISO8859_1;
} @catch (id e) {
[self release];
@throw e;
}
return self;
}
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- (OFLHAArchiveEntry *)nextEntry
{
OFLHAArchiveEntry *entry;
char header[21];
size_t headerLen;
if (_mode != OF_LHA_ARCHIVE_MODE_READ)
@throw [OFInvalidArgumentException exception];
[(OFLHAArchiveFileReadStream *)_lastReturnedStream of_skip];
@try {
[_lastReturnedStream close];
} @catch (OFNotOpenException *e) {
/* Might have already been closed by the user - that's fine. */
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- (OFLHAArchiveEntry *)nextEntry
{
OFLHAArchiveEntry *entry;
char header[21];
size_t headerLen;
if (_mode != OFLHAArchiveModeRead)
@throw [OFInvalidArgumentException exception];
[(OFLHAArchiveFileReadStream *)_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_LHA_ARCHIVE_MODE_READ)
@throw [OFInvalidArgumentException exception];
if (_lastReturnedStream == nil)
@throw [OFInvalidArgumentException exception];
return [[(OFLHAArchiveFileReadStream *)_lastReturnedStream
retain] autorelease];
}
- (OFStream *)streamForWritingEntry: (OFLHAArchiveEntry *)entry
{
OFString *compressionMethod;
if (_mode != OF_LHA_ARCHIVE_MODE_WRITE &&
_mode != OF_LHA_ARCHIVE_MODE_APPEND)
@throw [OFInvalidArgumentException exception];
compressionMethod = entry.compressionMethod;
if (![compressionMethod isEqual: @"-lh0-"] &&
![compressionMethod isEqual: @"-lhd-"])
@throw [OFNotImplementedException exceptionWithSelector: _cmd
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<
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entry: entry];
return entry;
}
- (OFStream *)streamForReadingCurrentEntry
{
if (_mode != OFLHAArchiveModeRead)
@throw [OFInvalidArgumentException exception];
if (_lastReturnedStream == nil)
@throw [OFInvalidArgumentException exception];
return [[(OFLHAArchiveFileReadStream *)_lastReturnedStream
retain] autorelease];
}
- (OFStream *)streamForWritingEntry: (OFLHAArchiveEntry *)entry
{
OFString *compressionMethod;
if (_mode != OFLHAArchiveModeWrite && _mode != OFLHAArchiveModeAppend)
@throw [OFInvalidArgumentException exception];
compressionMethod = entry.compressionMethod;
if (![compressionMethod isEqual: @"-lh0-"] &&
![compressionMethod isEqual: @"-lhd-"])
@throw [OFNotImplementedException exceptionWithSelector: _cmd
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toRead =
_entry.compressedSize - decompressingStream.bytesConsumed;
stream = _stream;
}
if ([stream isKindOfClass: [OFSeekableStream class]] &&
(sizeof(of_offset_t) > 4 || toRead < INT32_MAX))
[(OFSeekableStream *)stream seekToOffset: (of_offset_t)toRead
whence: SEEK_CUR];
else {
while (toRead > 0) {
char buffer[512];
size_t min = toRead;
if (min > 512)
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toRead =
_entry.compressedSize - decompressingStream.bytesConsumed;
stream = _stream;
}
if ([stream isKindOfClass: [OFSeekableStream class]] &&
(sizeof(OFFileOffset) > 4 || toRead < INT32_MAX))
[(OFSeekableStream *)stream seekToOffset: (OFFileOffset)toRead
whence: SEEK_CUR];
else {
while (toRead > 0) {
char buffer[512];
size_t min = toRead;
if (min > 512)
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[super close];
}
@end
@implementation OFLHAArchiveFileWriteStream
- (instancetype)of_initWithStream: (OFSeekableStream *)stream
entry: (OFLHAArchiveEntry *)entry
encoding: (of_string_encoding_t)encoding
{
self = [super init];
@try {
_entry = [entry mutableCopy];
_encoding = encoding;
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[super close];
}
@end
@implementation OFLHAArchiveFileWriteStream
- (instancetype)of_initWithStream: (OFSeekableStream *)stream
entry: (OFLHAArchiveEntry *)entry
encoding: (OFStringEncoding)encoding
{
self = [super init];
@try {
_entry = [entry mutableCopy];
_encoding = encoding;
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{
return ((id <OFReadyForWritingObserving>)_stream)
.fileDescriptorForWriting;
}
- (void)close
{
of_offset_t offset;
if (_stream == nil)
@throw [OFNotOpenException exceptionWithObject: self];
_entry.uncompressedSize = _bytesWritten;
_entry.compressedSize = _bytesWritten;
_entry.CRC16 = _CRC16;
|
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{
return ((id <OFReadyForWritingObserving>)_stream)
.fileDescriptorForWriting;
}
- (void)close
{
OFFileOffset offset;
if (_stream == nil)
@throw [OFNotOpenException exceptionWithObject: self];
_entry.uncompressedSize = _bytesWritten;
_entry.compressedSize = _bytesWritten;
_entry.CRC16 = _CRC16;
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