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[entry->_modificationDate release];
entry->_modificationDate = nil;
entry->_modificationDate = [[OFDate alloc]
initWithTimeIntervalSince1970: modificationDate];
}
static bool
parseExtension(OFLHAArchiveEntry *entry, OFData *extension,
OFStringEncoding encoding, bool allowFileName)
{
void (*function)(OFLHAArchiveEntry *, OFData *, OFStringEncoding) =
NULL;
switch (*(char *)[extension itemAtIndex: 0]) {
case 0x01:
if (allowFileName)
function = parseFileNameExtension;
break;
case 0x02:
function = parseDirectoryNameExtension;
break;
case 0x3F:
function = parseCommentExtension;
break;
case 0x50:
function = parsePermissionsExtension;
break;
case 0x51:
function = parseGIDUIDExtension;
break;
case 0x52:
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[entry->_modificationDate release];
entry->_modificationDate = nil;
entry->_modificationDate = [[OFDate alloc]
initWithTimeIntervalSince1970: modificationDate];
}
static void
parseFileSizeExtension(OFLHAArchiveEntry *entry, OFData *extension,
OFStringEncoding encoding)
{
uint64_t tmp;
if (extension.count != 17)
@throw [OFInvalidFormatException exception];
memcpy(&tmp, (char *)extension.items + 1, 8);
entry->_compressedSize = OFFromLittleEndian64(tmp);
memcpy(&tmp, (char *)extension.items + 9, 8);
entry->_uncompressedSize = OFFromLittleEndian64(tmp);
}
static bool
parseExtension(OFLHAArchiveEntry *entry, OFData *extension,
OFStringEncoding encoding, bool allowFileName)
{
void (*function)(OFLHAArchiveEntry *, OFData *, OFStringEncoding) =
NULL;
switch (*(char *)[extension itemAtIndex: 0]) {
case 0x01:
if (allowFileName)
function = parseFileNameExtension;
break;
case 0x02:
function = parseDirectoryNameExtension;
break;
case 0x3F:
function = parseCommentExtension;
break;
case 0x42:
function = parseFileSizeExtension;
break;
case 0x50:
function = parsePermissionsExtension;
break;
case 0x51:
function = parseGIDUIDExtension;
break;
case 0x52:
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{
void *pool = objc_autoreleasePoolPush();
OFMutableData *data = [OFMutableData dataWithCapacity: 24];
const char *fileName, *directoryName;
size_t fileNameLength, directoryNameLength;
uint16_t tmp16;
uint32_t tmp32;
size_t headerSize;
if ([_compressionMethod cStringLengthWithEncoding:
OFStringEncodingASCII] != 5)
@throw [OFInvalidArgumentException exception];
getFileNameAndDirectoryName(self, encoding, &fileName, &fileNameLength,
&directoryName, &directoryNameLength);
if (fileNameLength > UINT16_MAX - 3 ||
directoryNameLength > UINT16_MAX - 3 ||
_compressedSize > UINT32_MAX || _uncompressedSize > UINT32_MAX)
@throw [OFOutOfRangeException exception];
/* Length. Filled in after we're done. */
[data increaseCountBy: 2];
[data addItems: [_compressionMethod
cStringWithEncoding: OFStringEncodingASCII]
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{
void *pool = objc_autoreleasePoolPush();
OFMutableData *data = [OFMutableData dataWithCapacity: 24];
const char *fileName, *directoryName;
size_t fileNameLength, directoryNameLength;
uint16_t tmp16;
uint32_t tmp32;
uint64_t tmp64;
size_t headerSize;
if ([_compressionMethod cStringLengthWithEncoding:
OFStringEncodingASCII] != 5)
@throw [OFInvalidArgumentException exception];
getFileNameAndDirectoryName(self, encoding, &fileName, &fileNameLength,
&directoryName, &directoryNameLength);
if (fileNameLength > UINT16_MAX - 3 ||
directoryNameLength > UINT16_MAX - 3 ||
_compressedSize > UINT64_MAX || _uncompressedSize > UINT64_MAX)
@throw [OFOutOfRangeException exception];
/* Length. Filled in after we're done. */
[data increaseCountBy: 2];
[data addItems: [_compressionMethod
cStringWithEncoding: OFStringEncodingASCII]
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tmp16 = OFToLittleEndian16((uint16_t)fileCommentLength + 3);
[data addItems: &tmp16 count: sizeof(tmp16)];
[data addItem: "\x3F"];
[data addItems: [_fileComment cStringWithEncoding: encoding]
count: fileCommentLength];
}
if (_POSIXPermissions != nil) {
tmp16 = OFToLittleEndian16(5);
[data addItems: &tmp16 count: sizeof(tmp16)];
[data addItem: "\x50"];
tmp16 =
OFToLittleEndian16(_POSIXPermissions.unsignedShortValue);
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tmp16 = OFToLittleEndian16((uint16_t)fileCommentLength + 3);
[data addItems: &tmp16 count: sizeof(tmp16)];
[data addItem: "\x3F"];
[data addItems: [_fileComment cStringWithEncoding: encoding]
count: fileCommentLength];
}
/*
* Always include the file size extension, as the header can be written
* with size 0 initially and then rewritten with the actual size in
* case the data to be archived is being streamed - but for that we
* need to make sure we always have the space.
*/
tmp16 = OFToLittleEndian16(19);
[data addItems: &tmp16 count: sizeof(tmp16)];
[data addItem: "\x42"];
tmp64 = OFToLittleEndian64(_compressedSize);
[data addItems: &tmp64 count: sizeof(tmp64)];
tmp64 = OFToLittleEndian64(_uncompressedSize);
[data addItems: &tmp64 count: sizeof(tmp64)];
if (_POSIXPermissions != nil) {
tmp16 = OFToLittleEndian16(5);
[data addItems: &tmp16 count: sizeof(tmp16)];
[data addItem: "\x50"];
tmp16 =
OFToLittleEndian16(_POSIXPermissions.unsignedShortValue);
|