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/*
* 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 <map>
#include <string>
#include <stdio.h>
#include <unistd.h>
#include "minzip/Zip.h"
#include "config.h"
#include "ota_io.h"
#define OTAIO_MAX_FNAME_SIZE 128
static ZipArchive* archive;
static std::map<const char*, bool> should_inject_cache;
static const char* get_type_path(const char* io_type) {
char* path = (char*)calloc(strlen(io_type) + strlen(OTAIO_BASE_DIR) + 2, sizeof(char));
sprintf(path, "%s/%s", OTAIO_BASE_DIR, io_type);
return path;
}
void ota_io_init(ZipArchive* za) {
archive = za;
ota_set_fault_files();
}
bool should_fault_inject(const char* io_type) {
// archive will be NULL if we used an entry point other
// than updater/updater.cpp:main
if (archive == NULL) {
return false;
}
if (should_inject_cache.find(io_type) != should_inject_cache.end()) {
return should_inject_cache[io_type];
}
const char* type_path = get_type_path(io_type);
const ZipEntry* entry = mzFindZipEntry(archive, type_path);
should_inject_cache[type_path] = entry != nullptr;
free((void*)type_path);
return entry != NULL;
}
bool should_hit_cache() {
return should_fault_inject(OTAIO_CACHE);
}
std::string fault_fname(const char* io_type) {
const char* type_path = get_type_path(io_type);
char* fname = (char*) calloc(OTAIO_MAX_FNAME_SIZE, sizeof(char));
const ZipEntry* entry = mzFindZipEntry(archive, type_path);
mzReadZipEntry(archive, entry, fname, OTAIO_MAX_FNAME_SIZE);
free((void*)type_path);
return std::string(fname);
}
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