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/*
* Copyright (C) 2006 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
//
// Class to rewrite zip file headers to remove dynamic timestamps.
//
#ifndef __LIBS_ZIPFILE_H
#define __LIBS_ZIPFILE_H
#include <stdio.h>
#include "ZipEntry.h"
namespace android {
/*
* Manipulate a Zip archive.
*/
class ZipFile {
public:
ZipFile(void) : mZipFp(NULL) {}
~ZipFile(void) {
if (mZipFp != NULL)
fclose(mZipFp);
}
/*
* Rewrite an archive's headers to remove dynamic timestamps.
*/
status_t rewrite(const char* zipFileName);
private:
/* these are private and not defined */
ZipFile(const ZipFile& src);
ZipFile& operator=(const ZipFile& src);
class EndOfCentralDir {
public:
EndOfCentralDir(void) : mTotalNumEntries(0), mCentralDirOffset(0) {}
status_t readBuf(const uint8_t* buf, int len);
uint16_t mTotalNumEntries;
uint32_t mCentralDirOffset; // offset from first disk
enum {
kSignature = 0x06054b50,
kEOCDLen = 22, // EndOfCentralDir len, excl. comment
kMaxCommentLen = 65535, // longest possible in ushort
kMaxEOCDSearch = kMaxCommentLen + EndOfCentralDir::kEOCDLen,
};
};
/* read all entries in the central dir */
status_t rewriteCentralDir(void);
/*
* We use stdio FILE*, which gives us buffering but makes dealing
* with files >2GB awkward. Until we support Zip64, we're fine.
*/
FILE* mZipFp; // Zip file pointer
/* one of these per file */
EndOfCentralDir mEOCD;
};
}; // namespace android
#endif // __LIBS_ZIPFILE_H
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