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[data increaseCountBy: 2];
[data addItems: [_compressionMethod
cStringWithEncoding: OF_STRING_ENCODING_ASCII]
count: 5];
tmp32 = OF_BSWAP32_IF_BE(_compressedSize);
[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);
[data addItems: &tmp32
count: sizeof(tmp32)];
/* Reserved */
[data increaseCountBy: 1];
/* Header level */
[data addItem: "\x02"];
/* CRC16 */
tmp16 = OF_BSWAP16_IF_BE(_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);
[data addItems: &tmp16
count: sizeof(tmp16)];
[data addItem: "\x00"];
[data increaseCountBy: 2];
tmp16 = OF_BSWAP16_IF_BE((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);
[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);
[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);
[data addItems: &tmp16
count: sizeof(tmp16)];
[data addItem: "\x50"];
tmp16 = OF_BSWAP16_IF_BE(_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);
[data addItems: &tmp16
count: sizeof(tmp16)];
[data addItem: "\x51"];
tmp16 = OF_BSWAP16_IF_BE(_GID.unsignedShortValue);
[data addItems: &tmp16
count: sizeof(tmp16)];
tmp16 = OF_BSWAP16_IF_BE(_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);
[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);
[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);
[data addItems: &tmp16
count: sizeof(tmp16)];
[data addItem: "\x54"];
tmp32 = OF_BSWAP32_IF_BE(
(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);
[data addItems: &tmp16
count: sizeof(tmp16)];
[data addItems: extension.items
count: extension.count];
}
/* Zero-length extension to terminate */
[data increaseCountBy: 2];
headerSize = data.count;
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[data increaseCountBy: 2];
[data addItems: [_compressionMethod
cStringWithEncoding: OF_STRING_ENCODING_ASCII]
count: 5];
tmp32 = OF_BSWAP32_IF_BE(_compressedSize);
[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);
[data addItems: &tmp32 count: sizeof(tmp32)];
/* Reserved */
[data increaseCountBy: 1];
/* Header level */
[data addItem: "\x02"];
/* CRC16 */
tmp16 = OF_BSWAP16_IF_BE(_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);
[data addItems: &tmp16 count: sizeof(tmp16)];
[data addItem: "\x00"];
[data increaseCountBy: 2];
tmp16 = OF_BSWAP16_IF_BE((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);
[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);
[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);
[data addItems: &tmp16 count: sizeof(tmp16)];
[data addItem: "\x50"];
tmp16 = OF_BSWAP16_IF_BE(_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);
[data addItems: &tmp16 count: sizeof(tmp16)];
[data addItem: "\x51"];
tmp16 = OF_BSWAP16_IF_BE(_GID.unsignedShortValue);
[data addItems: &tmp16 count: sizeof(tmp16)];
tmp16 = OF_BSWAP16_IF_BE(_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);
[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);
[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);
[data addItems: &tmp16 count: sizeof(tmp16)];
[data addItem: "\x54"];
tmp32 = OF_BSWAP32_IF_BE(
(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);
[data addItems: &tmp16 count: sizeof(tmp16)];
[data addItems: extension.items count: extension.count];
}
/* Zero-length extension to terminate */
[data increaseCountBy: 2];
headerSize = data.count;
|