| /* |
| * Copyright (C) 2015 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. |
| */ |
| |
| #include <errno.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| |
| #include <algorithm> |
| #include <string> |
| #include <vector> |
| |
| #include <ziparchive/zip_archive.h> |
| #include <ziparchive/zip_archive_stream_entry.h> |
| #include <ziparchive/zip_writer.h> |
| |
| static void usage() { |
| fprintf(stderr, "usage: bionic_tests_zipalign ALIGNMENT INPUT_ZIP_FILE OUTPUT_ZIP_FILE\n"); |
| fprintf(stderr, " ALIGNMENT:\n"); |
| fprintf(stderr, " The new alignment of all entries in the new zip file.\n"); |
| fprintf(stderr, " INPUT_ZIP_FILE:\n"); |
| fprintf(stderr, " The input zip file that will be read but left unmodified.\n"); |
| fprintf(stderr, " OUTPUT_ZIP_FILE:\n"); |
| fprintf(stderr, " The output zip file that will be created from the input file.\n"); |
| } |
| |
| typedef std::pair<ZipEntry*, ZipString*> ZipData; |
| |
| static bool GetEntries(ZipArchiveHandle handle, std::vector<ZipData>* entries) { |
| void* cookie; |
| int32_t return_value = StartIteration(handle, &cookie, nullptr, nullptr); |
| if (return_value != 0) { |
| fprintf(stderr, "Unable to iterate over entries: %s\n", ErrorCodeString(return_value)); |
| return false; |
| } |
| |
| ZipEntry entry; |
| ZipString name; |
| while ((return_value = Next(cookie, &entry, &name)) == 0) { |
| entries->push_back(std::make_pair(new ZipEntry(entry), new ZipString(name))); |
| } |
| if (return_value != -1) { |
| fprintf(stderr, "Error while iterating over zip entries: %s\n", ErrorCodeString(return_value)); |
| } else { |
| // Sort by offset. |
| std::sort(entries->begin(), entries->end(), |
| [](ZipData a, ZipData b) { return a.first->offset < b.first->offset; }); |
| } |
| |
| EndIteration(cookie); |
| return return_value == -1; |
| } |
| |
| static bool CreateAlignedZip(ZipArchiveHandle& handle, FILE* zip_dst, uint32_t alignment) { |
| std::vector<ZipData> entries; |
| // We will not free the memory created in entries since the program |
| // terminates right after this function is called. |
| if (!GetEntries(handle, &entries)) { |
| return false; |
| } |
| |
| ZipWriter writer(zip_dst); |
| |
| int32_t error; |
| for (auto& entry : entries) { |
| ZipEntry* zip_entry = entry.first; |
| ZipString* zip_str = entry.second; |
| |
| size_t flags = 0; |
| if ((zip_entry->method & kCompressDeflated) != 0) { |
| flags |= ZipWriter::kCompress; |
| } |
| std::string zip_name(reinterpret_cast<const char*>(zip_str->name), zip_str->name_length); |
| error = writer.StartAlignedEntry(zip_name.c_str(), flags, alignment); |
| if (error != 0) { |
| fprintf(stderr, "StartAlignedEntry failed: %s\n", ZipWriter::ErrorCodeString(error)); |
| return false; |
| } |
| std::unique_ptr<ZipArchiveStreamEntry> stream( |
| ZipArchiveStreamEntry::Create(handle, *zip_entry)); |
| const std::vector<uint8_t>* data; |
| while ((data = stream->Read()) != nullptr) { |
| error = writer.WriteBytes(data->data(), data->size()); |
| if (error != 0) { |
| fprintf(stderr, "WriteBytes failed: %s\n", ZipWriter::ErrorCodeString(error)); |
| return false; |
| } |
| } |
| if (!stream->Verify()) { |
| fprintf(stderr, "Failed to verify zip stream writer entry.\n"); |
| return false; |
| } |
| error = writer.FinishEntry(); |
| if (error != 0) { |
| fprintf(stderr, "FinishEntry failed: %s\n", ZipWriter::ErrorCodeString(error)); |
| } |
| } |
| |
| error = writer.Finish(); |
| if (error != 0) { |
| fprintf(stderr, "Finish failed: %s\n", ZipWriter::ErrorCodeString(error)); |
| return false; |
| } |
| return true; |
| } |
| |
| int main(int argc, char* argv[]) { |
| if (argc != 4) { |
| usage(); |
| return 1; |
| } |
| |
| char* end; |
| unsigned long int alignment = strtoul(argv[1], &end, 10); |
| if ((alignment == ULONG_MAX && errno == ERANGE) || *end != '\0') { |
| fprintf(stderr, "ALIGNMENT value is not a valid number: %s\n", argv[1]); |
| usage(); |
| return 1; |
| } |
| if (((alignment - 1) & alignment) != 0) { |
| fprintf(stderr, "ALIGNMENT value is not a power of 2: %s\n", argv[1]); |
| return 1; |
| } |
| |
| ZipArchiveHandle handle; |
| |
| int32_t return_value = OpenArchive(argv[2], &handle); |
| if (return_value != 0) { |
| CloseArchive(handle); |
| fprintf(stderr, "Unable to open '%s': %s\n", argv[2], ErrorCodeString(return_value)); |
| return false; |
| } |
| |
| FILE* zip_dst = fopen(argv[3], "we"); |
| if (zip_dst == nullptr) { |
| fprintf(stderr, "Unable to create '%s': %s\n", argv[3], strerror(errno)); |
| return 1; |
| } |
| |
| bool success = CreateAlignedZip(handle, zip_dst, static_cast<uint32_t>(alignment)); |
| |
| CloseArchive(handle); |
| fclose(zip_dst); |
| |
| return success ? 0 : 1; |
| } |