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/*
* Copyright (C) 2009 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 <androidfw/BackupHelpers.h>
#include <utils/String8.h>
#include <fcntl.h>
#include <stdio.h>
#include <string.h>
using namespace android;
#include <unistd.h>
static int usage(int /* argc */, const char** argv)
{
const char* p = argv[0];
fprintf(stderr, "%s: Backs up your data.\n"
"\n"
"usage: %s\n"
" Prints all of the data that can be backed up to stdout.\n"
"\n"
"usage: %s list FILE\n"
" Lists the backup entities in the file.\n"
"\n"
"usage: %s print NAME FILE\n"
" Prints the entity named NAME in FILE.\n",
p, p, p, p);
return 1;
}
static int perform_full_backup()
{
printf("this would have written all of your data to stdout\n");
return 0;
}
static int perform_list(const char* filename)
{
int err;
int fd;
fd = open(filename, O_RDONLY);
if (fd == -1) {
fprintf(stderr, "Error opening: %s\n", filename);
return 1;
}
BackupDataReader reader(fd);
bool done;
int type;
while (reader.ReadNextHeader(&done, &type) == 0) {
if (done) {
break;
}
switch (type) {
case BACKUP_HEADER_ENTITY_V1:
{
String8 key;
size_t dataSize;
err = reader.ReadEntityHeader(&key, &dataSize);
if (err == 0) {
printf(" entity: %s (%zu bytes)\n", key.string(), dataSize);
} else {
printf(" Error reading entity header\n");
}
break;
}
default:
{
printf("Unknown chunk type: 0x%08x\n", type);
break;
}
}
}
return 0;
}
static int perform_print(const char* entityname, const char* filename)
{
printf("perform_print(%s, %s);", entityname, filename);
return 0;
}
int main(int argc, const char** argv)
{
if (argc <= 1) {
return perform_full_backup();
}
if (argc == 3 && 0 == strcmp(argv[1], "list")) {
return perform_list(argv[2]);
}
if (argc == 4 && 0 == strcmp(argv[1], "print")) {
return perform_print(argv[2], argv[3]);
}
return usage(argc, argv);
}
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