86 lines
2.5 KiB
C
86 lines
2.5 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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* Read-only access to Zip archives, with minimal heap allocation.
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*/
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#ifndef LIBDEX_ZIPARCHIVE_H_
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#define LIBDEX_ZIPARCHIVE_H_
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#include <ziparchive/zip_archive.h>
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#include "SysUtil.h"
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#include "DexFile.h" // need DEX_INLINE
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/*
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* Open a Zip archive.
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*
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* On success, returns 0 and populates "pArchive". Returns nonzero errno
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* value on failure.
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*/
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DEX_INLINE int dexZipOpenArchive(const char* fileName, ZipArchiveHandle* pArchive) {
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return OpenArchive(fileName, pArchive);
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}
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/*
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* Like dexZipOpenArchive, but takes a file descriptor open for reading
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* at the start of the file. The descriptor must be mappable (this does
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* not allow access to a stream).
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*
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* "debugFileName" will appear in error messages, but is not otherwise used.
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*/
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DEX_INLINE int dexZipOpenArchiveFd(int fd, const char* debugFileName,
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ZipArchiveHandle* pArchive) {
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return OpenArchiveFd(fd, debugFileName, pArchive);
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}
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/*
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* Close archive, releasing resources associated with it.
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*
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* Depending on the implementation this could unmap pages used by classes
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* stored in a Jar. This should only be done after unloading classes.
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*/
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DEX_INLINE void dexZipCloseArchive(ZipArchiveHandle archive) {
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CloseArchive(archive);
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}
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/*
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* Return the archive's file descriptor.
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*/
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DEX_INLINE int dexZipGetArchiveFd(const ZipArchiveHandle pArchive) {
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return GetFileDescriptor(pArchive);
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}
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/*
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* Find an entry in the Zip archive, by name. Returns NULL if the entry
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* was not found.
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*/
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DEX_INLINE int dexZipFindEntry(const ZipArchiveHandle pArchive,
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const char* entryName, ZipEntry* data) {
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return FindEntry(pArchive, ZipString(entryName), data);
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}
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/*
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* Uncompress and write an entry to a file descriptor.
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*
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* Returns 0 on success.
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*/
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DEX_INLINE int dexZipExtractEntryToFile(ZipArchiveHandle handle,
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ZipEntry* entry, int fd) {
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return ExtractEntryToFile(handle, entry, fd);
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}
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#endif // LIBDEX_ZIPARCHIVE_H_
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