Differences From Artifact [01c49327d9]:
- File
src/OFZooArchiveEntry.m
— part of check-in
[9a95da71d5]
at
2024-02-28 00:24:42
on branch trunk
— Add OFZooArchive
Only support for reading so far.
Compression methods 0 (uncompressed) and 2 (LZ77 + Huffman, apparently
identical to lh4/lh5) are supported. (user: js, size: 4064) [annotate] [blame] [check-ins using]
To Artifact [66b61bdc12]:
- File src/OFZooArchiveEntry.m — part of check-in [88c236e709] at 2024-02-28 22:34:45 on branch trunk — OFZooArchiveEntry: Support for long file names (user: js, size: 5566) [annotate] [blame] [check-ins using]
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24 25 26 27 28 29 30 | #import "OFInvalidFormatException.h" @implementation OFZooArchiveEntry @synthesize compressionMethod = _compressionMethod, CRC16 = _CRC16; @synthesize uncompressedSize = _uncompressedSize; @synthesize compressedSize = _compressedSize, deleted = _deleted; | | > > > | | > > > > > > > > > > > > > > > > > > > > > > > > > | > > > > > > > > > > > > > > > > > > > > > > | 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 |
#import "OFInvalidFormatException.h"
@implementation OFZooArchiveEntry
@synthesize compressionMethod = _compressionMethod, CRC16 = _CRC16;
@synthesize uncompressedSize = _uncompressedSize;
@synthesize compressedSize = _compressedSize, deleted = _deleted;
@synthesize fileComment = _fileComment;
- (instancetype)init
{
OF_INVALID_INIT_METHOD
}
- (instancetype)of_initWithStream: (OF_KINDOF(OFStream *))stream
encoding: (OFStringEncoding)encoding
{
self = [super init];
@try {
void *pool = objc_autoreleasePoolPush();
uint8_t majorVersion;
char fileNameBuffer[13];
uint32_t commentOffset;
uint16_t commentLength;
if ([stream readLittleEndianInt32] != 0xFDC4A7DC)
@throw [OFInvalidFormatException exception];
/* Type seems to be always 2 */
if ([stream readInt8] != 2)
@throw [OFInvalidFormatException exception];
_compressionMethod = [stream readInt8];
_nextHeaderOffset = [stream readLittleEndianInt32];
_dataOffset = [stream readLittleEndianInt32];
_lastModifiedFileDate = [stream readLittleEndianInt16];
_lastModifiedFileTime = [stream readLittleEndianInt16];
_CRC16 = [stream readLittleEndianInt16];
_uncompressedSize = [stream readLittleEndianInt32];
_compressedSize = [stream readLittleEndianInt32];
majorVersion = [stream readInt8];
/* Minor version */
[stream readInt8];
_deleted = [stream readInt8];
/* Unknown. Most likely padding to get to 2 byte alignment? */
[stream readInt8];
commentOffset = [stream readLittleEndianInt32];
commentLength = [stream readLittleEndianInt16];
[stream readIntoBuffer: fileNameBuffer exactLength: 13];
if (fileNameBuffer[12] != '\0')
fileNameBuffer[12] = '\0';
if (majorVersion == 2) {
uint16_t extraLength = [stream readLittleEndianInt16];
uint8_t fileNameLength, directoryNameLength;
if (extraLength < 10)
@throw [OFInvalidFormatException exception];
/* Time zone */
[stream readInt8];
/* CRC16 of the header */
[stream readLittleEndianInt16];
fileNameLength = [stream readInt8];
directoryNameLength = [stream readInt8];
extraLength -= 2;
if (fileNameLength > 0) {
if (extraLength < fileNameLength)
@throw [OFInvalidFormatException
exception];
_fileName = [[stream
readStringWithLength: fileNameLength
encoding: encoding] copy];
extraLength -= fileNameLength;
} else
_fileName = [[OFString alloc]
initWithCString: fileNameBuffer
encoding: encoding];
if (directoryNameLength > 0) {
if (extraLength < directoryNameLength)
@throw [OFInvalidFormatException
exception];
_directoryName = [[stream
readStringWithLength: directoryNameLength
encoding: encoding] copy];
extraLength -= directoryNameLength;
}
} else
_fileName = [[OFString alloc]
initWithCString: fileNameBuffer
encoding: encoding];
if (commentOffset != 0) {
[stream seekToOffset: commentOffset whence: OFSeekSet];
_fileComment = [[stream
readStringWithLength: commentLength
encoding: encoding] retain];
}
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86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 |
return self;
}
- (void)dealloc
{
[_fileComment release];
[_fileName release];
[super dealloc];
}
- (id)copy
{
return [self retain];
}
- (OFDate *)modificationDate
{
void *pool = objc_autoreleasePoolPush();
uint16_t year = ((_lastModifiedFileDate & 0xFE00) >> 9) + 1980;
uint8_t month = (_lastModifiedFileDate & 0x1E0) >> 5;
uint8_t day = (_lastModifiedFileDate & 0x1F);
| > > > > > > > > > | 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 |
return self;
}
- (void)dealloc
{
[_fileComment release];
[_fileName release];
[_directoryName release];
[super dealloc];
}
- (id)copy
{
return [self retain];
}
- (OFString *)fileName
{
if (_directoryName == nil)
return _fileName;
return [OFString stringWithFormat: @"%@/%@", _directoryName, _fileName];
}
- (OFDate *)modificationDate
{
void *pool = objc_autoreleasePoolPush();
uint16_t year = ((_lastModifiedFileDate & 0xFE00) >> 9) + 1980;
uint8_t month = (_lastModifiedFileDate & 0x1E0) >> 5;
uint8_t day = (_lastModifiedFileDate & 0x1F);
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