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64 lines
2.7 KiB
C++
64 lines
2.7 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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#ifndef SAPI_LIBARCHIVE_EXAMPLES_MINITAR_H
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#define SAPI_LIBARCHIVE_EXAMPLES_MINITAR_H
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#include <archive.h>
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#include <archive_entry.h>
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#include <fcntl.h>
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#include "libarchive_sapi.sapi.h" // NOLINT(build/include)
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#include "sandbox.h" // NOLINT(build/include)
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#include "sandboxed_api/sandbox2/util.h"
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#include "sandboxed_api/util/path.h"
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#include "sandboxed_api/util/temp_file.h"
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// Creates an archive file at the given filename.
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absl::Status CreateArchive(const char* filename, int compress,
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const char** argv, bool verbose = true);
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// Extracts an archive file. If do_extract is true, the files will
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// be created relative to the current working directory. If do_extract
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// is false then the function will just print the entries of the archive.
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absl::Status ExtractArchive(const char* filename, int do_extract, int flags,
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bool verbose = true);
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// This function is only called from the "extract function". It is still
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// isolated in order to not modify the code structure as much.
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absl::StatusOr<int> CopyData(sapi::v::RemotePtr* ar, sapi::v::RemotePtr* aw,
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LibarchiveApi& api,
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SapiLibarchiveSandboxExtract& sandbox);
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inline constexpr size_t kBlockSize = 10240;
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inline constexpr size_t kBuffSize = 16384;
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// Converts one string to an absolute path by prepending the current
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// working directory to the relative path.
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// The path is also cleaned at the end.
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std::string MakeAbsolutePathAtCWD(const std::string& path);
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// This function takes a status as argument and after checking the status
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// it transfers the string. This is used mostly with archive_error_string
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// and other library functions that return a char*.
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absl::StatusOr<std::string> CheckStatusAndGetString(
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const absl::StatusOr<char*>& status, LibarchiveSandbox& sandbox);
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// Creates a temporary directory in the current working directory and
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// returns the path. This is used in the extract function where the sandboxed
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// process changes the current working directory to this temporary directory.
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absl::StatusOr<std::string> CreateTempDirAtCWD();
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#endif // SAPI_LIBARCHIVE_EXAMPLES_MINITAR_H
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