69 lines
2 KiB
C++
69 lines
2 KiB
C++
/*
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* Copyright (C) 2015 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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#include <map>
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#include <string>
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#include <stdio.h>
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#include <unistd.h>
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#include <android-base/stringprintf.h>
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#include "minzip/Zip.h"
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#include "config.h"
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#include "ota_io.h"
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#define OTAIO_MAX_FNAME_SIZE 128
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static ZipArchive* archive;
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static std::map<std::string, bool> should_inject_cache;
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static std::string get_type_path(const char* io_type) {
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return android::base::StringPrintf("%s/%s", OTAIO_BASE_DIR, io_type);
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}
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void ota_io_init(ZipArchive* za) {
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archive = za;
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ota_set_fault_files();
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}
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bool should_fault_inject(const char* io_type) {
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// archive will be NULL if we used an entry point other
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// than updater/updater.cpp:main
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if (archive == NULL) {
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return false;
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}
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const std::string type_path = get_type_path(io_type);
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if (should_inject_cache.find(type_path) != should_inject_cache.end()) {
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return should_inject_cache[type_path];
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}
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const ZipEntry* entry = mzFindZipEntry(archive, type_path.c_str());
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should_inject_cache[type_path] = entry != nullptr;
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return entry != NULL;
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}
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bool should_hit_cache() {
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return should_fault_inject(OTAIO_CACHE);
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}
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std::string fault_fname(const char* io_type) {
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std::string type_path = get_type_path(io_type);
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std::string fname;
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fname.resize(OTAIO_MAX_FNAME_SIZE);
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const ZipEntry* entry = mzFindZipEntry(archive, type_path.c_str());
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mzReadZipEntry(archive, entry, &fname[0], OTAIO_MAX_FNAME_SIZE);
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return fname;
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}
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