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