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{
uint16_t mode;
if (extension.count != 3)
@throw [OFInvalidFormatException exception];
memcpy(&mode, (char *)extension.items + 1, 2);
mode = OF_BSWAP16_IF_BE(mode);
mode = OFFromLittleEndian16(mode);
[entry->_mode release];
entry->_mode = nil;
entry->_mode = [[OFNumber alloc] initWithUnsignedShort: mode];
}
static void
parseGIDUIDExtension(OFLHAArchiveEntry *entry, OFData *extension,
OFStringEncoding encoding)
{
uint16_t UID, GID;
if (extension.count != 5)
@throw [OFInvalidFormatException exception];
memcpy(&GID, (char *)extension.items + 1, 2);
GID = OF_BSWAP16_IF_BE(GID);
GID = OFFromLittleEndian16(GID);
memcpy(&UID, (char *)extension.items + 3, 2);
UID = OF_BSWAP16_IF_BE(UID);
UID = OFFromLittleEndian16(UID);
[entry->_GID release];
entry->_GID = nil;
[entry->_UID release];
entry->_UID = nil;
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{
uint32_t modificationDate;
if (extension.count != 5)
@throw [OFInvalidFormatException exception];
memcpy(&modificationDate, (char *)extension.items + 1, 4);
modificationDate = OF_BSWAP32_IF_BE(modificationDate);
modificationDate = OFFromLittleEndian32(modificationDate);
[entry->_modificationDate release];
entry->_modificationDate = nil;
entry->_modificationDate = [[OFDate alloc]
initWithTimeIntervalSince1970: modificationDate];
}
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_compressionMethod = [[OFString alloc]
initWithCString: header + 2
encoding: OFStringEncodingASCII
length: 5];
memcpy(&_compressedSize, header + 7, 4);
_compressedSize = OF_BSWAP32_IF_BE(_compressedSize);
_compressedSize = OFFromLittleEndian32(_compressedSize);
memcpy(&_uncompressedSize, header + 11, 4);
_uncompressedSize = OF_BSWAP32_IF_BE(_uncompressedSize);
_uncompressedSize = OFFromLittleEndian32(_uncompressedSize);
memcpy(&date, header + 15, 4);
date = OF_BSWAP32_IF_BE(date);
date = OFFromLittleEndian32(date);
_headerLevel = header[20];
_extensions = [[OFMutableArray alloc] init];
switch (_headerLevel) {
case 0:
case 1:;
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/* Length. Filled in after we're done. */
[data increaseCountBy: 2];
[data addItems: [_compressionMethod
cStringWithEncoding: OFStringEncodingASCII]
count: 5];
tmp32 = OF_BSWAP32_IF_BE(_compressedSize);
tmp32 = OFToLittleEndian32(_compressedSize);
[data addItems: &tmp32 count: sizeof(tmp32)];
tmp32 = OF_BSWAP32_IF_BE(_uncompressedSize);
tmp32 = OFToLittleEndian32(_uncompressedSize);
[data addItems: &tmp32 count: sizeof(tmp32)];
tmp32 = OF_BSWAP32_IF_BE((uint32_t)_date.timeIntervalSince1970);
tmp32 = OFToLittleEndian32((uint32_t)_date.timeIntervalSince1970);
[data addItems: &tmp32 count: sizeof(tmp32)];
/* Reserved */
[data increaseCountBy: 1];
/* Header level */
[data addItem: "\x02"];
/* CRC16 */
tmp16 = OF_BSWAP16_IF_BE(_CRC16);
tmp16 = OFToLittleEndian16(_CRC16);
[data addItems: &tmp16 count: sizeof(tmp16)];
/* Operating system identifier */
[data addItem: "U"];
/* Common header. Contains CRC16, which is written at the end. */
tmp16 = OF_BSWAP16_IF_BE(5);
tmp16 = OFToLittleEndian16(5);
[data addItems: &tmp16 count: sizeof(tmp16)];
[data addItem: "\x00"];
[data increaseCountBy: 2];
tmp16 = OF_BSWAP16_IF_BE((uint16_t)fileNameLength + 3);
tmp16 = OFToLittleEndian16((uint16_t)fileNameLength + 3);
[data addItems: &tmp16 count: sizeof(tmp16)];
[data addItem: "\x01"];
[data addItems: fileName count: fileNameLength];
if (directoryNameLength > 0) {
tmp16 = OF_BSWAP16_IF_BE((uint16_t)directoryNameLength + 3);
tmp16 = OFToLittleEndian16((uint16_t)directoryNameLength + 3);
[data addItems: &tmp16 count: sizeof(tmp16)];
[data addItem: "\x02"];
[data addItems: directoryName count: directoryNameLength];
}
if (_fileComment != nil) {
size_t fileCommentLength =
[_fileComment cStringLengthWithEncoding: encoding];
if (fileCommentLength > UINT16_MAX - 3)
@throw [OFOutOfRangeException exception];
tmp16 = OF_BSWAP16_IF_BE((uint16_t)fileCommentLength + 3);
tmp16 = OFToLittleEndian16((uint16_t)fileCommentLength + 3);
[data addItems: &tmp16 count: sizeof(tmp16)];
[data addItem: "\x3F"];
[data addItems: [_fileComment cStringWithEncoding: encoding]
count: fileCommentLength];
}
if (_mode != nil) {
tmp16 = OF_BSWAP16_IF_BE(5);
tmp16 = OFToLittleEndian16(5);
[data addItems: &tmp16 count: sizeof(tmp16)];
[data addItem: "\x50"];
tmp16 = OF_BSWAP16_IF_BE(_mode.unsignedShortValue);
tmp16 = OFToLittleEndian16(_mode.unsignedShortValue);
[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);
tmp16 = OFToLittleEndian16(7);
[data addItems: &tmp16 count: sizeof(tmp16)];
[data addItem: "\x51"];
tmp16 = OF_BSWAP16_IF_BE(_GID.unsignedShortValue);
tmp16 = OFToLittleEndian16(_GID.unsignedShortValue);
[data addItems: &tmp16 count: sizeof(tmp16)];
tmp16 = OF_BSWAP16_IF_BE(_UID.unsignedShortValue);
tmp16 = OFToLittleEndian16(_UID.unsignedShortValue);
[data addItems: &tmp16 count: sizeof(tmp16)];
}
if (_group != nil) {
size_t groupLength =
[_group cStringLengthWithEncoding: encoding];
if (groupLength > UINT16_MAX - 3)
@throw [OFOutOfRangeException exception];
tmp16 = OF_BSWAP16_IF_BE((uint16_t)groupLength + 3);
tmp16 = OFToLittleEndian16((uint16_t)groupLength + 3);
[data addItems: &tmp16 count: sizeof(tmp16)];
[data addItem: "\x52"];
[data addItems: [_group cStringWithEncoding: encoding]
count: groupLength];
}
if (_owner != nil) {
size_t ownerLength =
[_owner cStringLengthWithEncoding: encoding];
if (ownerLength > UINT16_MAX - 3)
@throw [OFOutOfRangeException exception];
tmp16 = OF_BSWAP16_IF_BE((uint16_t)ownerLength + 3);
tmp16 = OFToLittleEndian16((uint16_t)ownerLength + 3);
[data addItems: &tmp16 count: sizeof(tmp16)];
[data addItem: "\x53"];
[data addItems: [_owner cStringWithEncoding: encoding]
count: ownerLength];
}
if (_modificationDate != nil) {
tmp16 = OF_BSWAP16_IF_BE(7);
tmp16 = OFToLittleEndian16(7);
[data addItems: &tmp16 count: sizeof(tmp16)];
[data addItem: "\x54"];
tmp32 = OF_BSWAP32_IF_BE(
tmp32 = OFToLittleEndian32(
(uint32_t)_modificationDate.timeIntervalSince1970);
[data addItems: &tmp32 count: sizeof(tmp32)];
}
for (OFData *extension in _extensions) {
size_t extensionLength = extension.count;
if (extension.itemSize != 1)
@throw [OFInvalidArgumentException exception];
if (extensionLength > UINT16_MAX - 2)
@throw [OFOutOfRangeException exception];
tmp16 = OF_BSWAP16_IF_BE((uint16_t)extensionLength + 2);
tmp16 = OFToLittleEndian16((uint16_t)extensionLength + 2);
[data addItems: &tmp16 count: sizeof(tmp16)];
[data addItems: extension.items count: extension.count];
}
/* Zero-length extension to terminate */
[data increaseCountBy: 2];
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);
tmp16 = OFToLittleEndian16(headerSize);
memcpy([data mutableItemAtIndex: 0], &tmp16, sizeof(tmp16));
tmp16 = of_crc16(0, data.items, data.count);
tmp16 = OF_BSWAP16_IF_BE(tmp16);
tmp16 = OFToLittleEndian16(tmp16);
memcpy([data mutableItemAtIndex: 27], &tmp16, sizeof(tmp16));
[stream writeData: data];
objc_autoreleasePoolPop(pool);
}
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