frameworks/base: move Zip* from libandroidfw to libutils

ZipUtils is needed by build/tools, move it from libandroidfw
(frameworks/base) to libutils (frameworks/native).

Change-Id: I2b4b7adcdf68eb25ee7cba5dd3b69eadf0523af3

4 files changed, 1 insertions, 391 deletions

diff --git a/include/androidfw/AssetManager.h b/include/androidfw/AssetManager.h
index d95b45e..d153c31 100644
--- a/include/androidfw/AssetManager.h
+++ b/include/androidfw/AssetManager.h
@@ -22,13 +22,13 @@
 
 #include <androidfw/Asset.h>
 #include <androidfw/AssetDir.h>
-#include <androidfw/ZipFileRO.h>
 #include <utils/KeyedVector.h>
 #include <utils/SortedVector.h>
 #include <utils/String16.h>
 #include <utils/String8.h>
 #include <utils/threads.h>
 #include <utils/Vector.h>
+#include <utils/ZipFileRO.h>
 
 /*
  * Native-app access is via the opaque typedef struct AAssetManager in the C namespace.
diff --git a/include/androidfw/ZipFileCRO.h b/include/androidfw/ZipFileCRO.h
deleted file mode 100644
index 3e42a95..0000000
--- a/include/androidfw/ZipFileCRO.h
+++ /dev/null
@@ -1,61 +0,0 @@
-/*
- * Copyright (C) 2008 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.
- */
-
-//
-// C API for ead-only access to Zip archives, with minimal heap allocation.
-//
-#ifndef __LIBS_ZIPFILECRO_H
-#define __LIBS_ZIPFILECRO_H
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-
-#include <utils/Compat.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/*
- * Trivial typedef to ensure that ZipFileCRO is not treated as a simple integer.
- */
-typedef void* ZipFileCRO;
-
-/*
- * Trivial typedef to ensure that ZipEntryCRO is not treated as a simple
- * integer.  We use NULL to indicate an invalid value.
- */
-typedef void* ZipEntryCRO;
-
-extern ZipFileCRO ZipFileXRO_open(const char* path);
-
-extern void ZipFileCRO_destroy(ZipFileCRO zip);
-
-extern ZipEntryCRO ZipFileCRO_findEntryByName(ZipFileCRO zip,
-        const char* fileName);
-
-extern bool ZipFileCRO_getEntryInfo(ZipFileCRO zip, ZipEntryCRO entry,
-        int* pMethod, size_t* pUncompLen,
-        size_t* pCompLen, off64_t* pOffset, long* pModWhen, long* pCrc32);
-
-extern bool ZipFileCRO_uncompressEntry(ZipFileCRO zip, ZipEntryCRO entry, int fd);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /*__LIBS_ZIPFILECRO_H*/
diff --git a/include/androidfw/ZipFileRO.h b/include/androidfw/ZipFileRO.h
deleted file mode 100644
index 547e36a..0000000
--- a/include/androidfw/ZipFileRO.h
+++ /dev/null
@@ -1,262 +0,0 @@
-/*
- * Copyright (C) 2007 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.
- */
-
-/*
- * Read-only access to Zip archives, with minimal heap allocation.
- *
- * This is similar to the more-complete ZipFile class, but no attempt
- * has been made to make them interchangeable.  This class operates under
- * a very different set of assumptions and constraints.
- *
- * One such assumption is that if you're getting file descriptors for
- * use with this class as a child of a fork() operation, you must be on
- * a pread() to guarantee correct operation. This is because pread() can
- * atomically read at a file offset without worrying about a lock around an
- * lseek() + read() pair.
- */
-#ifndef __LIBS_ZIPFILERO_H
-#define __LIBS_ZIPFILERO_H
-
-#include <utils/Compat.h>
-#include <utils/Errors.h>
-#include <utils/FileMap.h>
-#include <utils/threads.h>
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <time.h>
-
-namespace android {
-
-/*
- * Trivial typedef to ensure that ZipEntryRO is not treated as a simple
- * integer.  We use NULL to indicate an invalid value.
- */
-typedef void* ZipEntryRO;
-
-/*
- * Open a Zip archive for reading.
- *
- * We want "open" and "find entry by name" to be fast operations, and we
- * want to use as little memory as possible.  We memory-map the file,
- * and load a hash table with pointers to the filenames (which aren't
- * null-terminated).  The other fields are at a fixed offset from the
- * filename, so we don't need to extract those (but we do need to byte-read
- * and endian-swap them every time we want them).
- *
- * To speed comparisons when doing a lookup by name, we could make the mapping
- * "private" (copy-on-write) and null-terminate the filenames after verifying
- * the record structure.  However, this requires a private mapping of
- * every page that the Central Directory touches.  Easier to tuck a copy
- * of the string length into the hash table entry.
- *
- * NOTE: If this is used on file descriptors inherited from a fork() operation,
- * you must be on a platform that implements pread() to guarantee correctness
- * on the shared file descriptors.
- */
-class ZipFileRO {
-public:
-    ZipFileRO()
-        : mFd(-1), mFileName(NULL), mFileLength(-1),
-          mDirectoryMap(NULL),
-          mNumEntries(-1), mDirectoryOffset(-1),
-          mHashTableSize(-1), mHashTable(NULL)
-        {}
-
-    ~ZipFileRO();
-
-    /*
-     * Open an archive.
-     */
-    status_t open(const char* zipFileName);
-
-    /*
-     * Find an entry, by name.  Returns the entry identifier, or NULL if
-     * not found.
-     *
-     * If two entries have the same name, one will be chosen at semi-random.
-     */
-    ZipEntryRO findEntryByName(const char* fileName) const;
-
-    /*
-     * Return the #of entries in the Zip archive.
-     */
-    int getNumEntries(void) const {
-        return mNumEntries;
-    }
-
-    /*
-     * Return the Nth entry.  Zip file entries are not stored in sorted
-     * order, and updated entries may appear at the end, so anyone walking
-     * the archive needs to avoid making ordering assumptions.  We take
-     * that further by returning the Nth non-empty entry in the hash table
-     * rather than the Nth entry in the archive.
-     *
-     * Valid values are [0..numEntries).
-     *
-     * [This is currently O(n).  If it needs to be fast we can allocate an
-     * additional data structure or provide an iterator interface.]
-     */
-    ZipEntryRO findEntryByIndex(int idx) const;
-
-    /*
-     * Copy the filename into the supplied buffer.  Returns 0 on success,
-     * -1 if "entry" is invalid, or the filename length if it didn't fit.  The
-     * length, and the returned string, include the null-termination.
-     */
-    int getEntryFileName(ZipEntryRO entry, char* buffer, int bufLen) const;
-
-    /*
-     * Get the vital stats for an entry.  Pass in NULL pointers for anything
-     * you don't need.
-     *
-     * "*pOffset" holds the Zip file offset of the entry's data.
-     *
-     * Returns "false" if "entry" is bogus or if the data in the Zip file
-     * appears to be bad.
-     */
-    bool getEntryInfo(ZipEntryRO entry, int* pMethod, size_t* pUncompLen,
-        size_t* pCompLen, off64_t* pOffset, long* pModWhen, long* pCrc32) const;
-
-    /*
-     * Create a new FileMap object that maps a subset of the archive.  For
-     * an uncompressed entry this effectively provides a pointer to the
-     * actual data, for a compressed entry this provides the input buffer
-     * for inflate().
-     */
-    FileMap* createEntryFileMap(ZipEntryRO entry) const;
-
-    /*
-     * Uncompress the data into a buffer.  Depending on the compression
-     * format, this is either an "inflate" operation or a memcpy.
-     *
-     * Use "uncompLen" from getEntryInfo() to determine the required
-     * buffer size.
-     *
-     * Returns "true" on success.
-     */
-    bool uncompressEntry(ZipEntryRO entry, void* buffer) const;
-
-    /*
-     * Uncompress the data to an open file descriptor.
-     */
-    bool uncompressEntry(ZipEntryRO entry, int fd) const;
-
-    /* Zip compression methods we support */
-    enum {
-        kCompressStored     = 0,        // no compression
-        kCompressDeflated   = 8,        // standard deflate
-    };
-
-    /*
-     * Utility function: uncompress deflated data, buffer to buffer.
-     */
-    static bool inflateBuffer(void* outBuf, const void* inBuf,
-        size_t uncompLen, size_t compLen);
-
-    /*
-     * Utility function: uncompress deflated data, buffer to fd.
-     */
-    static bool inflateBuffer(int fd, const void* inBuf,
-        size_t uncompLen, size_t compLen);
-
-    /*
-     * Utility function to convert ZIP's time format to a timespec struct.
-     */
-    static inline void zipTimeToTimespec(long when, struct tm* timespec) {
-        const long date = when >> 16;
-        timespec->tm_year = ((date >> 9) & 0x7F) + 80; // Zip is years since 1980
-        timespec->tm_mon = (date >> 5) & 0x0F;
-        timespec->tm_mday = date & 0x1F;
-
-        timespec->tm_hour = (when >> 11) & 0x1F;
-        timespec->tm_min = (when >> 5) & 0x3F;
-        timespec->tm_sec = (when & 0x1F) << 1;
-    }
-
-    /*
-     * Some basic functions for raw data manipulation.  "LE" means
-     * Little Endian.
-     */
-    static inline unsigned short get2LE(const unsigned char* buf) {
-        return buf[0] | (buf[1] << 8);
-    }
-    static inline unsigned long get4LE(const unsigned char* buf) {
-        return buf[0] | (buf[1] << 8) | (buf[2] << 16) | (buf[3] << 24);
-    }
-
-private:
-    /* these are private and not defined */ 
-    ZipFileRO(const ZipFileRO& src);
-    ZipFileRO& operator=(const ZipFileRO& src);
-
-    /* locate and parse the central directory */
-    bool mapCentralDirectory(void);
-
-    /* parse the archive, prepping internal structures */
-    bool parseZipArchive(void);
-
-    /* add a new entry to the hash table */
-    void addToHash(const char* str, int strLen, unsigned int hash);
-
-    /* compute string hash code */
-    static unsigned int computeHash(const char* str, int len);
-
-    /* convert a ZipEntryRO back to a hash table index */
-    int entryToIndex(const ZipEntryRO entry) const;
-
-    /*
-     * One entry in the hash table.
-     */
-    typedef struct HashEntry {
-        const char*     name;
-        unsigned short  nameLen;
-        //unsigned int    hash;
-    } HashEntry;
-
-    /* open Zip archive */
-    int         mFd;
-
-    /* Lock for handling the file descriptor (seeks, etc) */
-    mutable Mutex mFdLock;
-
-    /* zip file name */
-    char*       mFileName;
-
-    /* length of file */
-    size_t      mFileLength;
-
-    /* mapped file */
-    FileMap*    mDirectoryMap;
-
-    /* number of entries in the Zip archive */
-    int         mNumEntries;
-
-    /* CD directory offset in the Zip archive */
-    off64_t     mDirectoryOffset;
-
-    /*
-     * We know how many entries are in the Zip archive, so we have a
-     * fixed-size hash table.  We probe for an empty slot.
-     */
-    int         mHashTableSize;
-    HashEntry*  mHashTable;
-};
-
-}; // namespace android
-
-#endif /*__LIBS_ZIPFILERO_H*/
diff --git a/include/androidfw/ZipUtils.h b/include/androidfw/ZipUtils.h
deleted file mode 100644
index 42c42b6..0000000
--- a/include/androidfw/ZipUtils.h
+++ /dev/null
@@ -1,67 +0,0 @@
-/*
- * Copyright (C) 2007 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.
- */
-
-//
-// Miscellaneous zip/gzip utility functions.
-//
-#ifndef __LIBS_ZIPUTILS_H
-#define __LIBS_ZIPUTILS_H
-
-#include <stdio.h>
-
-namespace android {
-
-/*
- * Container class for utility functions, primarily for namespace reasons.
- */
-class ZipUtils {
-public:
-    /*
-     * General utility function for uncompressing "deflate" data from a file
-     * to a buffer.
-     */
-    static bool inflateToBuffer(int fd, void* buf, long uncompressedLen,
-        long compressedLen);
-    static bool inflateToBuffer(FILE* fp, void* buf, long uncompressedLen,
-        long compressedLen);
-
-    /*
-     * Someday we might want to make this generic and handle bzip2 ".bz2"
-     * files too.
-     *
-     * We could declare gzip to be a sub-class of zip that has exactly
-     * one always-compressed entry, but we currently want to treat Zip
-     * and gzip as distinct, so there's no value.
-     *
-     * The zlib library has some gzip utilities, but it has no interface
-     * for extracting the uncompressed length of the file (you do *not*
-     * want to gzseek to the end).
-     *
-     * Pass in a seeked file pointer for the gzip file.  If this is a gzip
-     * file, we set our return values appropriately and return "true" with
-     * the file seeked to the start of the compressed data.
-     */
-    static bool examineGzip(FILE* fp, int* pCompressionMethod,
-        long* pUncompressedLen, long* pCompressedLen, unsigned long* pCRC32);
-
-private:
-    ZipUtils() {}
-    ~ZipUtils() {}
-};
-
-}; // namespace android
-
-#endif /*__LIBS_ZIPUTILS_H*/