ObjFW  Check-in [52a1740f5e]

	}
	_lastReturnedStream = nil;

	_currentEntry = [[OFZooArchiveEntry alloc]
	    of_initWithStream: _stream
		     encoding: _encoding];










	return _currentEntry;
}

- (OFStream *)streamForReadingCurrentEntry
{
	if (_mode != modeRead)
		@throw [OFInvalidArgumentException exception];

 */

#import "OFZooArchive.h"

OF_ASSUME_NONNULL_BEGIN

@interface OFZooArchiveEntry ()
- (nullable instancetype)of_initWithStream: (OF_KINDOF(OFStream *))stream
				  encoding: (OFStringEncoding)encoding
    OF_METHOD_FAMILY(init) OF_DIRECT;
@end

OF_ASSUME_NONNULL_END

/**
 * @class OFZooArchiveEntry OFZooArchiveEntry.h ObjFW/OFZooArchiveEntry.h
 *
 * @brief A class which represents an entry in an Zoo archive.
 */
@interface OFZooArchiveEntry: OFObject <OFArchiveEntry, OFCopying>
{
	uint8_t _headerType, _compressionMethod;
#ifdef OF_ZOO_ARCHIVE_M
@public
#endif
	unsigned long long _nextHeaderOffset, _dataOffset;
@protected
	uint16_t _lastModifiedFileDate, _lastModifiedFileTime;
	uint16_t _CRC16;
	unsigned long long _uncompressedSize, _compressedSize;
	uint16_t _minVersionNeeded;
	bool _deleted;
	OFString *_Nullable _fileComment;
	OFString *_fileName, *_Nullable _directoryName;
	OFNumber *_Nullable _POSIXPermissions;
	int8_t _timeZone;
	uint16_t _operatingSystemIdentifier;
	OF_RESERVE_IVARS(OFZooArchiveEntry, 4)
}

/**
 * @brief The header type of the entry.
 */
@property (readonly, nonatomic) uint8_t headerType;

/**
 * @brief The compression method of the entry.
 */
@property (readonly, nonatomic) uint8_t compressionMethod;

/**
 * @brief The CRC16 of the file.

@property (readonly, nonatomic) uint16_t minVersionNeeded;

/**
 * @brief Whether the file was deleted.
 */
@property (readonly, nonatomic, getter=isDeleted) bool deleted;

/**
 * @brief The operating system identifier of the file.
 */
@property (readonly, nonatomic) uint16_t operatingSystemIdentifier;

/**
 * @brief The time zone in which the file was stored, as an offset in hours
 *	  from UTC (as a float).
 */
@property OF_NULLABLE_PROPERTY (readonly, nonatomic) OFNumber *timeZone;

- (instancetype)init OF_UNAVAILABLE;
@end

OF_ASSUME_NONNULL_END

#import "OFDate.h"
#import "OFNumber.h"
#import "OFSeekableStream.h"
#import "OFStream.h"
#import "OFString.h"

#import "OFInvalidFormatException.h"
#import "OFUnsupportedVersionException.h"

@implementation OFZooArchiveEntry
@synthesize headerType = _headerType, compressionMethod = _compressionMethod;
@synthesize CRC16 = _CRC16, uncompressedSize = _uncompressedSize;
@synthesize compressedSize = _compressedSize;
@synthesize minVersionNeeded = _minVersionNeeded, deleted = _deleted;
@synthesize fileComment = _fileComment;
@synthesize operatingSystemIdentifier = _operatingSystemIdentifier;
@synthesize POSIXPermissions = _POSIXPermissions;

- (instancetype)init
{
	OF_INVALID_INIT_METHOD
}

- (instancetype)of_initWithStream: (OF_KINDOF(OFStream *))stream
			 encoding: (OFStringEncoding)encoding
{
	self = [super init];

	@try {
		void *pool = objc_autoreleasePoolPush();
		char fileNameBuffer[13];
		uint32_t commentOffset;
		uint16_t commentLength;

		if ([stream readLittleEndianInt32] != 0xFDC4A7DC)
			@throw [OFInvalidFormatException exception];


		if ((_headerType = [stream readInt8]) > 2)
			@throw [OFUnsupportedVersionException
			    exceptionWithVersion: [OFString
			    stringWithFormat: @"%u", _headerType]];

		_compressionMethod = [stream readInt8];
		_nextHeaderOffset = [stream readLittleEndianInt32];

		if (_nextHeaderOffset == 0) {
			[self release];
			return nil;
		}

		_dataOffset = [stream readLittleEndianInt32];
		_lastModifiedFileDate = [stream readLittleEndianInt16];
		_lastModifiedFileTime = [stream readLittleEndianInt16];
		_CRC16 = [stream readLittleEndianInt16];
		_uncompressedSize = [stream readLittleEndianInt32];
		_compressedSize = [stream readLittleEndianInt32];
		_minVersionNeeded = [stream readBigEndianInt16];
		_deleted = [stream readInt8];
		/*
		 * File structure, whatever that is meant to be. Seems to
		 * always be 0.
		 */
		[stream readInt8];
		commentOffset = [stream readLittleEndianInt32];
		commentLength = [stream readLittleEndianInt16];

		[stream readIntoBuffer: fileNameBuffer exactLength: 13];
		if (fileNameBuffer[12] != '\0')
			fileNameBuffer[12] = '\0';

		if (_headerType >= 2) {
			uint16_t extraLength = [stream readLittleEndianInt16];
			uint8_t fileNameLength, directoryNameLength;

			if (extraLength < 10)
				@throw [OFInvalidFormatException exception];

			_timeZone = [stream readInt8];

				_directoryName = [[stream
				    readStringWithLength: directoryNameLength
						encoding: encoding] copy];
				extraLength -= directoryNameLength;
			}

			if (extraLength >= 2) {
				_operatingSystemIdentifier =
				    [stream readLittleEndianInt16];
				extraLength -= 2;
			}

			if (extraLength >= 3) {
				uint8_t attributes[3];

				[stream readIntoBuffer: attributes

					    [OFString stringWithFormat: @"%c",
					    entry.operatingSystemIdentifier];

					[OFStdOut writeString: @"\t"];
					[OFStdOut writeLine: OF_LOCALIZED(
					    @"list_osid",
					    @"Operating system identifier: "
					    @"%[osid]",
					    @"osid", OSID)];
				}
			}

			if (app->_outputLevel >= 3) {
				OFString *extensions =
				    indent(entry.extensions.description);

			OFString *modificationDate = [entry.modificationDate
			    localDateStringWithFormat: @"%Y-%m-%d %H:%M:%S"];
			OFString *compressedSize = [OFString stringWithFormat:
			    @"%llu", entry.compressedSize];
			OFString *uncompressedSize = [OFString stringWithFormat:
			    @"%llu", entry.uncompressedSize];
			OFString *compressionMethod = [OFString
			    stringWithFormat: @"%" PRIu8,
			    entry.compressionMethod];
			OFString *CRC16 = [OFString stringWithFormat:
			    @"%04" PRIX16, entry.CRC16];
			OFString *deleted = [OFString stringWithFormat:
			    @"%" PRIu8, entry.deleted];

			[OFStdOut writeString: @"\t"];
			[OFStdOut writeLine: OF_LOCALIZED(
			    @"list_compressed_size",
			    @"["
			    @"    'Compressed: ',"
			    @"    ["

				    @"comment", entry.fileComment)];
			}
		}

		if (app->_outputLevel >= 2) {
			uint16_t minVersionNeeded = entry.minVersionNeeded;
			OFString *minVersionNeededString = [OFString
			    stringWithFormat: @"%" PRIu8 @".%" PRIu8,
					      minVersionNeeded >> 8,
					      minVersionNeeded & 0xFF];
			OFString *headerType = [OFString
			    stringWithFormat: @"%" PRIu8,
					      entry.headerType];

			[OFStdOut writeString: @"\t"];
			[OFStdOut writeLine: OF_LOCALIZED(
			    @"list_min_version_needed",
			    @"Minimum version needed: %[version]",
			    @"version", minVersionNeededString)];

			[OFStdOut writeString: @"\t"];
			[OFStdOut writeLine: OF_LOCALIZED(
			    @"list_header_type",
			    @"Header type: %[type]",
			    @"type", headerType)];

			if (entry.headerType >= 2) {
				OFString *OSID =
				    [OFString stringWithFormat: @"%u",
				    entry.operatingSystemIdentifier];

				[OFStdOut writeString: @"\t"];
				[OFStdOut writeLine: OF_LOCALIZED(
				    @"list_osid",
				    @"Operating system identifier: "
				    @"%[osid]",
				    @"osid", OSID)];
			}

			if (entry.POSIXPermissions != nil) {
				OFString *permissionsString = [OFString
				    stringWithFormat: @"%llo",
				    entry.POSIXPermissions
				    .unsignedLongLongValue];

    ],
    list_posix_permissions: "POSIX-Berechtigungen: %[perm]",
    list_owner_account_id: "Besitzerkontennummer: %[id]",
    list_group_owner_account_id: "Gruppenbesitzerkontennummer: %[id]",
    list_owner_account_name: "Besitzerkontenname: %[name]",
    list_group_owner_account_name: "Gruppenbesitzerkontenname: %[name]",
    list_header_level: "Header-Level: %[level]",
    list_header_type: "Header-Typ: %[type]",
    list_modification_date: "Änderungsdatum: %[date]",
    list_type_normal: "Typ: Normale Datei",
    list_type_hardlink: "Typ: Harter Link",
    list_type_symlink: "Typ: Symbolischer Link",
    list_link_target: "Zieldateiname: %[target]",
    list_type_character_device: "Typ: Zeichenorientiertes Gerät",
    list_type_block_device: "Typ: Blockorientiertes Gerät",