Remove changing uids/timestamps from zip/jar files
Pass -X to zip so that Unix UID/GID and extra timestamps aren't
saved into the zip files.
Add a new tool, ziptime, that uses a very stripped down copy of
zipalign. It no longer depends on libandroidfw, and now rewrites the
timestamps in place instead of making a copy of the zipfile. This should
improve speed and reduce disk requirements, especially with the large
packaging zip files.
Bug: 24201956
Change-Id: I50f68669f659da1b4393e964ad40b6aafb00c1e7
diff --git a/tools/ziptime/ZipEntry.h b/tools/ziptime/ZipEntry.h
new file mode 100644
index 0000000..beea20c
--- /dev/null
+++ b/tools/ziptime/ZipEntry.h
@@ -0,0 +1,116 @@
+/*
+ * 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.
+ */
+
+//
+// Zip archive entries.
+//
+// The ZipEntry class is tightly meshed with the ZipFile class.
+//
+#ifndef __LIBS_ZIPENTRY_H
+#define __LIBS_ZIPENTRY_H
+
+#include <stdlib.h>
+#include <stdio.h>
+
+typedef int status_t;
+
+namespace android {
+
+class ZipFile;
+
+/*
+ * ZipEntry objects represent a single entry in a Zip archive.
+ *
+ * File information is stored in two places: next to the file data (the Local
+ * File Header, and possibly a Data Descriptor), and at the end of the file
+ * (the Central Directory Entry). The two must be kept in sync.
+ */
+class ZipEntry {
+public:
+ friend class ZipFile;
+
+ ZipEntry(void) {}
+ ~ZipEntry(void) {}
+
+ /*
+ * Some basic functions for raw data manipulation. "LE" means
+ * Little Endian.
+ */
+ static inline unsigned short getShortLE(const unsigned char* buf) {
+ return buf[0] | (buf[1] << 8);
+ }
+ static inline unsigned long getLongLE(const unsigned char* buf) {
+ return buf[0] | (buf[1] << 8) | (buf[2] << 16) | (buf[3] << 24);
+ }
+ static inline void putShortLE(unsigned char* buf, short val) {
+ buf[0] = (unsigned char) val;
+ buf[1] = (unsigned char) (val >> 8);
+ }
+
+protected:
+ /*
+ * Initialize the structure from the file, which is pointing at
+ * our Central Directory entry. And rewrite it.
+ */
+ status_t initAndRewriteFromCDE(FILE* fp);
+
+private:
+ /* these are private and not defined */
+ ZipEntry(const ZipEntry& src);
+ ZipEntry& operator=(const ZipEntry& src);
+
+ /*
+ * Every entry in the Zip archive starts off with one of these.
+ */
+ class LocalFileHeader {
+ public:
+ LocalFileHeader(void) {}
+
+ status_t rewrite(FILE* fp);
+
+ enum {
+ kSignature = 0x04034b50,
+ kLFHLen = 30, // LocalFileHdr len, excl. var fields
+ };
+ };
+
+ /*
+ * Every entry in the Zip archive has one of these in the "central
+ * directory" at the end of the file.
+ */
+ class CentralDirEntry {
+ public:
+ CentralDirEntry(void) :
+ mLocalHeaderRelOffset(0)
+ {}
+
+ status_t rewrite(FILE* fp);
+
+ unsigned long mLocalHeaderRelOffset;
+
+ enum {
+ kSignature = 0x02014b50,
+ kCDELen = 46, // CentralDirEnt len, excl. var fields
+ };
+ };
+
+ LocalFileHeader mLFH;
+ CentralDirEntry mCDE;
+};
+
+}; // namespace android
+
+#endif // __LIBS_ZIPENTRY_H