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//
// ZipReadStream.m
// Objective-Zip v. 0.7.2
//
// Created by Gianluca Bertani on 28/12/09.
// Copyright 2009-10 Flying Dolphin Studio. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
//
// * Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
// * Neither the name of Gianluca Bertani nor the names of its contributors
// may be used to endorse or promote products derived from this software
// without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//

#import "ZipReadStream.h"
#import "ZipException.h"

#include "unzip.h"


@implementation ZipReadStream


- (id) initWithUnzFileStruct:(unzFile)unzFile fileNameInZip:(NSString *)fileNameInZip {
if (self= [super init]) {
_unzFile= unzFile;
_fileNameInZip= fileNameInZip;
}

return self;
}

- (NSUInteger) readDataWithBuffer:(NSMutableData *)buffer {
int err= unzReadCurrentFile(_unzFile, [buffer mutableBytes], [buffer length]);
if (err < 0) {
NSString *reason= [NSString stringWithFormat:@"Error in reading '%@' in the zipfile", _fileNameInZip];
@throw [[[ZipException alloc] initWithError:err reason:reason] autorelease];
}

return err;
}

- (void) finishedReading {
int err= unzCloseCurrentFile(_unzFile);
if (err != UNZ_OK) {
NSString *reason= [NSString stringWithFormat:@"Error in closing '%@' in the zipfile", _fileNameInZip];
@throw [[[ZipException alloc] initWithError:err reason:reason] autorelease];
}
}


@end
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