73 lines
2.6 KiB
C
73 lines
2.6 KiB
C
/*
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* Copyright (C) 2008 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/*
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* Access .dex (Dalvik Executable Format) files. The code here assumes that
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* the DEX file has been rewritten (byte-swapped, word-aligned) and that
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* the contents can be directly accessed as a collection of C arrays. Please
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* see docs/dalvik/dex-format.html for a detailed description.
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*
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* The structure and field names were chosen to match those in the DEX spec.
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*
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* It's generally assumed that the DEX file will be stored in shared memory,
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* obviating the need to copy code and constant pool entries into newly
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* allocated storage. Maintaining local pointers to items in the shared area
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* is valid and encouraged.
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*
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* All memory-mapped structures are 32-bit aligned unless otherwise noted.
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*/
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#ifndef LIBDEX_CMDUTILS_H_
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#define LIBDEX_CMDUTILS_H_
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/* encode the result of unzipping to a file */
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enum UnzipToFileResult {
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kUTFRSuccess = 0,
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kUTFRGenericFailure,
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kUTFRBadArgs,
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kUTFRNotZip,
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kUTFRNoClassesDex,
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kUTFROutputFileProblem,
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kUTFRBadZip,
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};
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/*
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* Map the specified DEX file read-only (possibly after expanding it into a
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* temp file from a Jar). Pass in a MemMapping struct to hold the info.
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* If the file is an unoptimized DEX file, then byte-swapping and structural
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* verification are performed on it before the memory is made read-only.
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*
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* The temp file is deleted after the map succeeds.
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*
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* This is intended for use by tools (e.g. dexdump) that need to get a
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* read-only copy of a DEX file that could be in a number of different states.
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*
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* If "tempFileName" is NULL, a default value is used. The temp file is
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* deleted after the map succeeds.
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*
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* If "quiet" is set, don't report common errors.
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*
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* Returns 0 (kUTFRSuccess) on success.
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*/
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UnzipToFileResult dexOpenAndMap(const char* fileName, const char* tempFileName,
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MemMapping* pMap, bool quiet);
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/*
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* Utility function to open a Zip archive, find "classes.dex", and extract
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* it to a file.
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*/
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UnzipToFileResult dexUnzipToFile(const char* zipFileName,
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const char* outFileName, bool quiet);
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#endif // LIBDEX_CMDUTILS_H_
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