ObjFW  Check-in [da5f126be3]

Overview
Comment:OFGZIPStream: Add properties for OS and mtime
Downloads: Tarball | ZIP archive | SQL archive
Timelines: family | ancestors | descendants | both | set-mtime
Files: files | file ages | folders
SHA3-256: da5f126be3ed640178e48ca851629186336152993dec1197bca977bf8ab0a77f
User & Date: js on 2020-06-02 21:21:50
Other Links: branch diff | manifest | tags
Context
2020-06-02
21:32
ofarc: Set mtime of files extracted from GZIP Closed-Leaf check-in: 582e8986cc user: js tags: set-mtime
21:21
OFGZIPStream: Add properties for OS and mtime check-in: da5f126be3 user: js tags: set-mtime
21:02
ofarc: Set modification date of extracted files check-in: bc158ffe75 user: js tags: set-mtime
Changes
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Modified src/OFGZIPStream.h from [e0031d8a51] to [6ecb57a815].

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	enum of_gzip_stream_state {
		OF_GZIP_STREAM_ID1,
		OF_GZIP_STREAM_ID2,
		OF_GZIP_STREAM_COMPRESSION_METHOD,
		OF_GZIP_STREAM_FLAGS,
		OF_GZIP_STREAM_MODIFICATION_TIME,
		OF_GZIP_STREAM_EXTRA_FLAGS,
		OF_GZIP_STREAM_OS,
		OF_GZIP_STREAM_EXTRA_LENGTH,
		OF_GZIP_STREAM_EXTRA,
		OF_GZIP_STREAM_NAME,
		OF_GZIP_STREAM_COMMENT,
		OF_GZIP_STREAM_HEADER_CRC16,
		OF_GZIP_STREAM_DATA,
		OF_GZIP_STREAM_CRC32,
		OF_GZIP_STREAM_UNCOMPRESSED_SIZE
	} _state;
	enum of_gzip_stream_flags {
		OF_GZIP_STREAM_FLAG_TEXT	 = 0x01,
		OF_GZIP_STREAM_FLAG_HEADER_CRC16 = 0x02,
		OF_GZIP_STREAM_FLAG_EXTRA	 = 0x04,
		OF_GZIP_STREAM_FLAG_NAME	 = 0x08,
		OF_GZIP_STREAM_FLAG_COMMENT	 = 0x10
	} _flags;
	uint8_t _extraFlags;
	enum of_gzip_stream_os {
		OF_GZIP_STREAM_OS_FAT		=   0,
		OF_GZIP_STREAM_OS_AMIGA		=   1,
		OF_GZIP_STREAM_OS_VMS		=   2,
		OF_GZIP_STREAM_OS_UNIX		=   3,
		OF_GZIP_STREAM_OS_VM_CMS	=   4,
		OF_GZIP_STREAM_OS_ATARI_TOS	=   5,
		OF_GZIP_STREAM_OS_HPFS		=   6,
		OF_GZIP_STREAM_OS_MACINTOSH	=   7,
		OF_GZIP_STREAM_OS_Z_SYSTEM	=   8,
		OF_GZIP_STREAM_OS_CP_M		=   9,
		OF_GZIP_STREAM_OS_TOPS_20	=  10,
		OF_GZIP_STREAM_OS_NTFS		=  11,
		OF_GZIP_STREAM_OS_QDO		=  12,
		OF_GZIP_STREAM_OS_ACORN_RISC_OS	=  13,
		OF_GZIP_STREAM_OS_UNKNOWN	= 255
	} _OS;
	size_t _bytesRead;
	uint8_t _buffer[4];
	OFDate *_Nullable _modificationDate;
	uint16_t _extraLength;
	uint32_t _CRC32, _uncompressedSize;
}


















/*!
 * @brief Creates a new OFGZIPStream with the specified underlying stream.
 *
 * @param stream The underlying stream for the OFGZIPStream
 * @param mode The mode for the OFGZIPStream. Valid modes are "r" for reading
 *	       and "w" for writing.
 * @return A new, autoreleased OFGZIPStream








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	enum of_gzip_stream_state {
		OF_GZIP_STREAM_ID1,
		OF_GZIP_STREAM_ID2,
		OF_GZIP_STREAM_COMPRESSION_METHOD,
		OF_GZIP_STREAM_FLAGS,
		OF_GZIP_STREAM_MODIFICATION_TIME,
		OF_GZIP_STREAM_EXTRA_FLAGS,
		OF_GZIP_STREAM_OPERATING_SYSTEM,
		OF_GZIP_STREAM_EXTRA_LENGTH,
		OF_GZIP_STREAM_EXTRA,
		OF_GZIP_STREAM_NAME,
		OF_GZIP_STREAM_COMMENT,
		OF_GZIP_STREAM_HEADER_CRC16,
		OF_GZIP_STREAM_DATA,
		OF_GZIP_STREAM_CRC32,
		OF_GZIP_STREAM_UNCOMPRESSED_SIZE
	} _state;
	enum of_gzip_stream_flags {
		OF_GZIP_STREAM_FLAG_TEXT	 = 0x01,
		OF_GZIP_STREAM_FLAG_HEADER_CRC16 = 0x02,
		OF_GZIP_STREAM_FLAG_EXTRA	 = 0x04,
		OF_GZIP_STREAM_FLAG_NAME	 = 0x08,
		OF_GZIP_STREAM_FLAG_COMMENT	 = 0x10
	} _flags;
	uint8_t _extraFlags;
	enum of_gzip_stream_operating_system {
		OF_GZIP_STREAM_OPERATING_SYSTEM_FAT		=   0,
		OF_GZIP_STREAM_OPERATING_SYSTEM_AMIGA		=   1,
		OF_GZIP_STREAM_OPERATING_SYSTEM_VMS		=   2,
		OF_GZIP_STREAM_OPERATING_SYSTEM_UNIX		=   3,
		OF_GZIP_STREAM_OPERATING_SYSTEM_VM_CMS		=   4,
		OF_GZIP_STREAM_OPERATING_SYSTEM_ATARI_TOS	=   5,
		OF_GZIP_STREAM_OPERATING_SYSTEM_HPFS		=   6,
		OF_GZIP_STREAM_OPERATING_SYSTEM_MACINTOSH	=   7,
		OF_GZIP_STREAM_OPERATING_SYSTEM_Z_SYSTEM	=   8,
		OF_GZIP_STREAM_OPERATING_SYSTEM_CP_M		=   9,
		OF_GZIP_STREAM_OPERATING_SYSTEM_TOPS_20		=  10,
		OF_GZIP_STREAM_OPERATING_SYSTEM_NTFS		=  11,
		OF_GZIP_STREAM_OPERATING_SYSTEM_QDO		=  12,
		OF_GZIP_STREAM_OPERATING_SYSTEM_ACORN_RISC_OS	=  13,
		OF_GZIP_STREAM_OPERATING_SYSTEM_UNKNOWN		= 255
	} _operatingSystemMadeOn;
	size_t _bytesRead;
	uint8_t _buffer[4];
	OFDate *_Nullable _modificationDate;
	uint16_t _extraLength;
	uint32_t _CRC32, _uncompressedSize;
}

/*!
 * @brief The operating system on which the data was compressed.
 *
 * This property is only guaranteed to be available once @ref atEndOfStream is
 * true.
 */
@property (readonly, nonatomic)
    enum of_gzip_stream_operating_system operatingSystemMadeOn;

/*!
 * @brief The modification date of the original file.
 *
 * This property is only guaranteed to be available once @ref atEndOfStream is
 * true.
 */
@property OF_NULLABLE_PROPERTY (readonly, nonatomic) OFDate *modificationDate;

/*!
 * @brief Creates a new OFGZIPStream with the specified underlying stream.
 *
 * @param stream The underlying stream for the OFGZIPStream
 * @param mode The mode for the OFGZIPStream. Valid modes are "r" for reading
 *	       and "w" for writing.
 * @return A new, autoreleased OFGZIPStream
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Modified src/OFGZIPStream.m from [f8e93c416d] to [42379805f3].

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#import "OFChecksumMismatchException.h"
#import "OFInvalidFormatException.h"
#import "OFNotImplementedException.h"
#import "OFNotOpenException.h"
#import "OFTruncatedDataException.h"

@implementation OFGZIPStream



+ (instancetype)streamWithStream: (OFStream *)stream
			    mode: (OFString *)mode
{
	return [[[self alloc] initWithStream: stream
					mode: mode] autorelease];
}









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#import "OFChecksumMismatchException.h"
#import "OFInvalidFormatException.h"
#import "OFNotImplementedException.h"
#import "OFNotOpenException.h"
#import "OFTruncatedDataException.h"

@implementation OFGZIPStream
@synthesize operatingSystemMadeOn = _operatingSystemMadeOn;
@synthesize modificationDate = _modificationDate;

+ (instancetype)streamWithStream: (OFStream *)stream
			    mode: (OFString *)mode
{
	return [[[self alloc] initWithStream: stream
					mode: mode] autorelease];
}
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	@try {
		if (![mode isEqual: @"r"])
			@throw [OFNotImplementedException
			    exceptionWithSelector: _cmd
					   object: nil];

		_stream = [stream retain];


		_CRC32 = ~0;
	} @catch (id e) {
		[self release];
		@throw e;
	}

	return self;








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	@try {
		if (![mode isEqual: @"r"])
			@throw [OFNotImplementedException
			    exceptionWithSelector: _cmd
					   object: nil];

		_stream = [stream retain];
		_operatingSystemMadeOn =
		    OF_GZIP_STREAM_OPERATING_SYSTEM_UNKNOWN;
		_CRC32 = ~0;
	} @catch (id e) {
		[self release];
		@throw e;
	}

	return self;
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			if ([_stream readIntoBuffer: &byte
					     length: 1] < 1)
				return 0;

			_extraFlags = byte;
			_state++;
			break;
		case OF_GZIP_STREAM_OS:
			if ([_stream readIntoBuffer: &byte
					     length: 1] < 1)
				return 0;

			_OS = byte;
			_state++;
			break;
		case OF_GZIP_STREAM_EXTRA_LENGTH:
			if (!(_flags & OF_GZIP_STREAM_FLAG_EXTRA)) {
				_state += 2;
				break;
			}








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			if ([_stream readIntoBuffer: &byte
					     length: 1] < 1)
				return 0;

			_extraFlags = byte;
			_state++;
			break;
		case OF_GZIP_STREAM_OPERATING_SYSTEM:
			if ([_stream readIntoBuffer: &byte
					     length: 1] < 1)
				return 0;

			_operatingSystemMadeOn = byte;
			_state++;
			break;
		case OF_GZIP_STREAM_EXTRA_LENGTH:
			if (!(_flags & OF_GZIP_STREAM_FLAG_EXTRA)) {
				_state += 2;
				break;
			}
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Fossil 2.23 [47362306a7] 2023-11-01 18:56:47
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