133 lines
3.4 KiB
C++
133 lines
3.4 KiB
C++
// Copyright 2020 Google LLC
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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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// https://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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// This file contains the main function from the original minitar example:
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// https://github.com/libarchive/libarchive/blob/master/examples/minitar/minitar.c
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// Most of the logic is the same, it was only simplified a bit since this is
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// only used for the command line tool.
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// No sandboxing takes place in this function.
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#include <iostream>
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#include "sapi_minitar.h" // NOLINT(build/include)
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static void PrintUsage() {
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/* Many program options depend on compile options. */
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const char* m =
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"Usage: minitar [-"
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"c"
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"j"
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"tvx"
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"y"
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"Z"
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"z"
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"] [-f file] [file]\n";
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std::cout << m << std::endl;
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exit(EXIT_FAILURE);
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}
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int main(int unused_argc, char* argv[]) {
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sapi::InitLogging(argv[0]);
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const char* filename = nullptr;
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int compress;
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int flags;
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int mode;
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int opt;
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mode = 'x';
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int verbose = 0;
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compress = '\0';
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flags = ARCHIVE_EXTRACT_TIME;
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while (*++argv != nullptr && **argv == '-') {
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const char* p = *argv + 1;
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while ((opt = *p++) != '\0') {
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switch (opt) {
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case 'c':
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mode = opt;
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break;
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case 'f':
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if (*p != '\0')
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filename = p;
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else
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filename = *++argv;
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p += strlen(p);
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break;
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case 'j':
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compress = opt;
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break;
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case 'p':
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flags |= ARCHIVE_EXTRACT_PERM;
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flags |= ARCHIVE_EXTRACT_ACL;
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flags |= ARCHIVE_EXTRACT_FFLAGS;
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break;
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case 't':
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mode = opt;
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break;
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case 'v':
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verbose++;
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break;
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case 'x':
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mode = opt;
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break;
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case 'y':
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compress = opt;
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break;
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case 'Z':
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compress = opt;
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break;
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case 'z':
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compress = opt;
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break;
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default:
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PrintUsage();
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}
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}
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}
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absl::Status status;
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switch (mode) {
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case 'c':
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status = CreateArchive(filename, compress,
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sandbox2::util::CharArrPtr(argv).ToStringVector(),
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verbose);
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if (!status.ok()) {
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LOG(ERROR) << "Archive creation failed with message: "
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<< status.message();
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return EXIT_FAILURE;
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}
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break;
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case 't':
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status = ExtractArchive(filename, 0, flags, verbose);
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if (!status.ok()) {
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LOG(ERROR) << "Archive extraction failed with message: "
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<< status.message();
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return EXIT_FAILURE;
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}
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break;
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case 'x':
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status = ExtractArchive(filename, 1, flags, verbose);
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if (!status.ok()) {
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LOG(ERROR) << "Archive extraction failed with message: "
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<< status.message();
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return EXIT_FAILURE;
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}
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break;
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}
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return EXIT_SUCCESS;
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}
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