97 lines
2.9 KiB
C++
97 lines
2.9 KiB
C++
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/*
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* Copyright (C) 2019 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 <getopt.h>
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#include <sysexits.h>
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#include <libvbmeta/libvbmeta.h>
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using android::fs_mgr::WriteToSuperVBMetaFile;
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/* Prints program usage to |where|. */
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static int usage(int /* argc */, char* argv[]) {
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fprintf(stderr,
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"%s - command-line tool for creating Super VBMeta Image.\n"
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"\n"
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"Usage:\n"
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" %s [options]\n"
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"\n"
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"Required options:\n"
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" -o,--output=FILE Output file.\n"
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"\n"
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"Optional:\n"
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" -i,--image=VBMETA_NAME=FILE include the given vbmeta file as\n"
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" initial data for the super vbmeta.\n",
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argv[0], argv[0]);
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return EX_USAGE;
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}
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int main(int argc, char* argv[]) {
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struct option options[] = {
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{ "help", no_argument, nullptr, 'h' },
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{ "image", required_argument, nullptr, 'i' },
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{ "output", required_argument, nullptr, 'o' },
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{ nullptr, 0, nullptr, 0 },
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};
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std::string output_path;
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std::map<std::string, std::string> images;
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int rv;
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while ((rv = getopt_long_only(argc, argv, "i:o:", options, NULL)) != -1) {
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switch (rv) {
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case 'h':
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return usage(argc, argv);
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case 'i':
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{
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char* separator = strchr(optarg, '=');
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if (!separator || separator == optarg || !strlen(separator + 1)) {
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fprintf(stderr, "Expected VBMETA_NAME=FILE.\n");
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return EX_USAGE;
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}
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*separator = '\0';
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std::string vbmeta_name(optarg);
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std::string file(separator + 1);
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images[vbmeta_name] = file;
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break;
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}
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case 'o':
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output_path = optarg;
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break;
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default:
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break;
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}
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}
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// Check for empty arguments so we can print a more helpful message rather
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// than error on each individual missing argument.
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if (optind == 1) {
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return usage(argc, argv);
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}
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if (output_path.empty()) {
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fprintf(stderr, "--output must specify a valid path.\n");
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return EX_USAGE;
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}
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if (!WriteToSuperVBMetaFile(output_path.c_str(), images)) {
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return EX_CANTCREAT;
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}
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return EX_OK;
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}
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