mirror of
https://github.com/MacPaw/XADMaster.git
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77 lines
2.4 KiB
Objective-C
77 lines
2.4 KiB
Objective-C
/*
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* XADSARParser.m
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*
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* Copyright (c) 2017-present, MacPaw Inc. All rights reserved.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301 USA
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*/
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#import "XADSARParser.h"
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#import "XADRegex.h"
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@implementation XADSARParser
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+(int)requiredHeaderSize { return 6; }
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+(BOOL)recognizeFileWithHandle:(CSHandle *)handle firstBytes:(NSData *)data name:(NSString *)name
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{
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if(!name) return NO;
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if(![[name lastPathComponent] matchedByPattern:@"^arc[0-9]*\\.sar$" options:REG_ICASE]) return NO;
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//const uint8_t *bytes=[data bytes];
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//int length=[data length];
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return YES;
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}
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-(void)parse
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{
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CSHandle *fh=[self handle];
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int numfiles=[fh readUInt16BE];
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if(numfiles==0) numfiles=[fh readUInt16BE];
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uint32_t offset=[fh readUInt32BE];
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for(int i=0;i<numfiles && [self shouldKeepParsing];i++)
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{
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NSMutableData *namedata=[NSMutableData data];
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uint8_t c;
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while((c=[fh readUInt8])) [namedata appendBytes:&c length:1];
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uint32_t dataoffs=[fh readUInt32BE];
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uint32_t datalen=[fh readUInt32BE];
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NSMutableDictionary *dict=[NSMutableDictionary dictionaryWithObjectsAndKeys:
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[self XADPathWithData:namedata separators:XADWindowsPathSeparator],XADFileNameKey,
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[NSNumber numberWithUnsignedLong:datalen],XADFileSizeKey,
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[NSNumber numberWithUnsignedLong:datalen],XADCompressedSizeKey,
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[NSNumber numberWithUnsignedLong:datalen],XADDataLengthKey,
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[NSNumber numberWithUnsignedLong:dataoffs+offset],XADDataOffsetKey,
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[self XADStringWithString:@"None"],XADCompressionNameKey,
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nil];
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[self addEntryWithDictionary:dict retainPosition:YES];
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}
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}
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-(CSHandle *)handleForEntryWithDictionary:(NSDictionary *)dict wantChecksum:(BOOL)checksum
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{
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return [self handleAtDataOffsetForDictionary:dict];
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}
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-(NSString *)formatName { return @"SAR"; }
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@end
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