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parseFileNameExtension(OFLHAArchiveEntry *entry, OFData *extension,
of_string_encoding_t encoding)
{
[entry->_fileName release];
entry->_fileName = nil;
entry->_fileName = [[OFString alloc]
initWithCString: (char *)[extension items] + 1
initWithCString: (char *)extension.items + 1
encoding: encoding
length: [extension count] - 1];
}
static void
parseDirectoryNameExtension(OFLHAArchiveEntry *entry, OFData *extension,
of_string_encoding_t encoding)
{
void *pool = objc_autoreleasePoolPush();
OFMutableData *data = [[extension mutableCopy] autorelease];
char *items = [data items];
size_t count = [data count];
char *items = data.mutableItems;
size_t count = data.count;
OFMutableString *directoryName;
for (size_t i = 1; i < count; i++)
if (items[i] == '\xFF')
items[i] = '/';
directoryName = [OFMutableString stringWithCString: items + 1
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parseCommentExtension(OFLHAArchiveEntry *entry, OFData *extension,
of_string_encoding_t encoding)
{
[entry->_fileComment release];
entry->_fileComment = nil;
entry->_fileComment = [[OFString alloc]
initWithCString: (char *)[extension items] + 1
initWithCString: (char *)extension.items + 1
encoding: encoding
length: [extension count] - 1];
length: extension.count - 1];
}
static void
parsePermissionsExtension(OFLHAArchiveEntry *entry, OFData *extension,
of_string_encoding_t encoding)
{
uint16_t mode;
if ([extension count] != 3)
if (extension.count != 3)
@throw [OFInvalidFormatException exception];
memcpy(&mode, (char *)[extension items] + 1, 2);
memcpy(&mode, (char *)extension.items + 1, 2);
mode = OF_BSWAP16_IF_BE(mode);
[entry->_mode release];
entry->_mode = nil;
entry->_mode = [[OFNumber alloc] initWithUInt16: mode];
}
static void
parseGIDUIDExtension(OFLHAArchiveEntry *entry, OFData *extension,
of_string_encoding_t encoding)
{
uint16_t UID, GID;
if ([extension count] != 5)
if (extension.count != 5)
@throw [OFInvalidFormatException exception];
memcpy(&GID, (char *)[extension items] + 1, 2);
memcpy(&GID, (char *)extension.items + 1, 2);
GID = OF_BSWAP16_IF_BE(GID);
memcpy(&UID, (char *)[extension items] + 3, 2);
memcpy(&UID, (char *)extension.items + 3, 2);
UID = OF_BSWAP16_IF_BE(UID);
[entry->_GID release];
entry->_GID = nil;
[entry->_UID release];
entry->_UID = nil;
entry->_GID = [[OFNumber alloc] initWithUInt16: GID];
entry->_UID = [[OFNumber alloc] initWithUInt16: UID];
}
static void
parseGroupExtension(OFLHAArchiveEntry *entry, OFData *extension,
of_string_encoding_t encoding)
{
[entry->_group release];
entry->_group = nil;
entry->_group = [[OFString alloc]
initWithCString: (char *)[extension items] + 1
initWithCString: (char *)extension.items + 1
encoding: encoding
length: [extension count] - 1];
length: extension.count - 1];
}
static void
parseOwnerExtension(OFLHAArchiveEntry *entry, OFData *extension,
of_string_encoding_t encoding)
{
[entry->_owner release];
entry->_owner = nil;
entry->_owner = [[OFString alloc]
initWithCString: (char *)[extension items] + 1
initWithCString: (char *)extension.items + 1
encoding: encoding
length: [extension count] - 1];
length: extension.count - 1];
}
static void
parseModificationDateExtension(OFLHAArchiveEntry *entry, OFData *extension,
of_string_encoding_t encoding)
{
uint32_t modificationDate;
if ([extension count] != 5)
if (extension.count != 5)
@throw [OFInvalidFormatException exception];
memcpy(&modificationDate, (char *)[extension items] + 1, 4);
memcpy(&modificationDate, (char *)extension.items + 1, 4);
modificationDate = OF_BSWAP32_IF_BE(modificationDate);
[entry->_modificationDate release];
entry->_modificationDate = nil;
entry->_modificationDate = [[OFDate alloc]
initWithTimeIntervalSince1970: modificationDate];
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data = [OFMutableData
dataWithItems: [entry->_directoryName cStringWithEncoding: encoding]
count: [entry->_directoryName
cStringLengthWithEncoding: encoding]];
[data addItems: [entry->_fileName cStringWithEncoding: encoding]
count: [entry->_fileName cStringLengthWithEncoding: encoding]];
cString = [data items];
length = [data count];
cString = data.mutableItems;
length = data.count;
pos = 0;
for (size_t i = 0; i < length; i++) {
if (cString[i] == '/' || cString[i] == '\\') {
cString[i] = '\xFF';
pos = i + 1;
}
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[data addItems: &tmp32
count: sizeof(tmp32)];
tmp32 = OF_BSWAP32_IF_BE(_uncompressedSize);
[data addItems: &tmp32
count: sizeof(tmp32)];
tmp32 = OF_BSWAP32_IF_BE((uint32_t)[_date timeIntervalSince1970]);
tmp32 = OF_BSWAP32_IF_BE((uint32_t)_date.timeIntervalSince1970);
[data addItems: &tmp32
count: sizeof(tmp32)];
/* Reserved */
[data increaseCountBy: 1];
/* Header level */
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if (_mode != nil) {
tmp16 = OF_BSWAP16_IF_BE(5);
[data addItems: &tmp16
count: sizeof(tmp16)];
[data addItem: "\x50"];
tmp16 = OF_BSWAP16_IF_BE([_mode uInt16Value]);
tmp16 = OF_BSWAP16_IF_BE(_mode.uInt16Value);
[data addItems: &tmp16
count: sizeof(tmp16)];
}
if (_UID != nil || _GID != nil) {
if (_UID == nil || _GID == nil)
@throw [OFInvalidArgumentException exception];
tmp16 = OF_BSWAP16_IF_BE(7);
[data addItems: &tmp16
count: sizeof(tmp16)];
[data addItem: "\x51"];
tmp16 = OF_BSWAP16_IF_BE([_GID uInt16Value]);
tmp16 = OF_BSWAP16_IF_BE(_GID.uInt16Value);
[data addItems: &tmp16
count: sizeof(tmp16)];
tmp16 = OF_BSWAP16_IF_BE([_UID uInt16Value]);
tmp16 = OF_BSWAP16_IF_BE(_UID.uInt16Value);
[data addItems: &tmp16
count: sizeof(tmp16)];
}
if (_group != nil) {
size_t groupLength =
[_group cStringLengthWithEncoding: encoding];
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if (_modificationDate != nil) {
tmp16 = OF_BSWAP16_IF_BE(7);
[data addItems: &tmp16
count: sizeof(tmp16)];
[data addItem: "\x54"];
tmp32 = OF_BSWAP32_IF_BE(
(uint32_t)[_modificationDate timeIntervalSince1970]);
(uint32_t)_modificationDate.timeIntervalSince1970);
[data addItems: &tmp32
count: sizeof(tmp32)];
}
for (OFData *extension in _extensions) {
size_t extensionLength = [extension count];
size_t extensionLength = extension.count;
if ([extension itemSize] != 1)
if (extension.itemSize != 1)
@throw [OFInvalidArgumentException exception];
if (extensionLength > UINT16_MAX - 2)
@throw [OFOutOfRangeException exception];
tmp16 = OF_BSWAP16_IF_BE((uint16_t)extensionLength + 2);
[data addItems: &tmp16
count: sizeof(tmp16)];
[data addItems: [extension items]
count: [extension count]];
[data addItems: extension.items
count: extension.count];
}
/* Zero-length extension to terminate */
[data increaseCountBy: 2];
headerSize = [data count];
headerSize = data.count;
if (headerSize > UINT16_MAX)
@throw [OFOutOfRangeException exception];
/* Now fill in the size and CRC16 for the entire header */
tmp16 = OF_BSWAP16_IF_BE(headerSize);
memcpy([data itemAtIndex: 0], &tmp16, sizeof(tmp16));
memcpy([data mutableItemAtIndex: 0], &tmp16, sizeof(tmp16));
tmp16 = of_crc16(0, data.items, data.count);
tmp16 = OF_BSWAP16_IF_BE(of_crc16(0, [data items], [data count]));
memcpy([data itemAtIndex: 27], &tmp16, sizeof(tmp16));
tmp16 = OF_BSWAP16_IF_BE(tmp16);
memcpy([data mutableItemAtIndex: 27], &tmp16, sizeof(tmp16));
[stream writeData: data];
objc_autoreleasePoolPop(pool);
}
- (OFString *)description
{
void *pool = objc_autoreleasePoolPush();
OFString *mode = (_mode == nil
OFString *mode = (_mode == nil ? nil
? nil
: [OFString stringWithFormat: @"%" PRIo16, [_mode uInt16Value]]);
OFString *extensions = [[_extensions description]
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@"\tUID = %@\n"
@"\tGID = %@\n"
@"\tOwner = %@\n"
@"\tGroup = %@\n"
@"\tModification date = %@\n"
@"\tExtensions: %@"
@">",
[self class], [self fileName], _compressionMethod, _compressedSize,
self.class, self.fileName, _compressionMethod, _compressedSize,
_uncompressedSize, _date, _headerLevel, _CRC16,
_operatingSystemIdentifier, _fileComment, mode, _UID, _GID, _owner,
_group, _modificationDate, extensions];
[ret retain];
objc_autoreleasePoolPop(pool);
return [ret autorelease];
}
@end
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