71 lines
2.1 KiB
C++
71 lines
2.1 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 "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<const char*, bool> should_inject_cache;
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static const char* get_type_path(const char* io_type) {
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char* path = (char*)calloc(strlen(io_type) + strlen(OTAIO_BASE_DIR) + 2, sizeof(char));
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sprintf(path, "%s/%s", OTAIO_BASE_DIR, io_type);
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return path;
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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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if (should_inject_cache.find(io_type) != should_inject_cache.end()) {
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return should_inject_cache[io_type];
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}
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const char* type_path = get_type_path(io_type);
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const ZipEntry* entry = mzFindZipEntry(archive, type_path);
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should_inject_cache[type_path] = entry != nullptr;
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free((void*)type_path);
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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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const char* type_path = get_type_path(io_type);
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char* fname = (char*) calloc(OTAIO_MAX_FNAME_SIZE, sizeof(char));
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const ZipEntry* entry = mzFindZipEntry(archive, type_path);
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mzReadZipEntry(archive, entry, fname, OTAIO_MAX_FNAME_SIZE);
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free((void*)type_path);
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return std::string(fname);
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}
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