mirror of
https://github.com/google/sandboxed-api.git
synced 2024-03-22 13:11:30 +08:00
82 lines
2.6 KiB
C++
82 lines
2.6 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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#include <string>
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#include "../sandboxed.h" // NOLINT(build/include)
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#include "../tests/libpng.h" // NOLINT(build/include)
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#include "sandboxed_api/vars.h"
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absl::Status LibPNGMain(const std::string& infile, const std::string& outfile) {
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LibPNGSapiSandbox sandbox;
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sandbox.AddFile(infile);
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sandbox.AddFile(outfile);
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SAPI_RETURN_IF_ERROR(sandbox.Init());
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LibPNGApi api(&sandbox);
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sapi::v::Struct<png_image> image;
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sapi::v::ConstCStr infile_var(infile.c_str());
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sapi::v::ConstCStr outfile_var(outfile.c_str());
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image.mutable_data()->version = PNG_IMAGE_VERSION;
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SAPI_ASSIGN_OR_RETURN(
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int result, api.png_image_begin_read_from_file(image.PtrBoth(),
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infile_var.PtrBefore()));
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if (!result) {
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return absl::InternalError(
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absl::StrCat("begin read error: ", image.mutable_data()->message));
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}
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image.mutable_data()->format = PNG_FORMAT_RGBA;
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sapi::v::Array<uint8_t> buffer(PNG_IMAGE_SIZE(*image.mutable_data()));
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sapi::v::NullPtr null = sapi::v::NullPtr();
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SAPI_ASSIGN_OR_RETURN(result,
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api.png_image_finish_read(image.PtrBoth(), &null,
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buffer.PtrBoth(), 0, &null));
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if (!result) {
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return absl::InternalError(
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absl::StrCat("finish read error: ", image.mutable_data()->message));
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}
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SAPI_ASSIGN_OR_RETURN(result, api.png_image_write_to_file(
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image.PtrBoth(), outfile_var.PtrBefore(), 0,
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buffer.PtrBoth(), 0, &null));
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if (!result) {
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return absl::InternalError(
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absl::StrCat("write error: ", image.mutable_data()->message));
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}
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return absl::OkStatus();
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}
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int main(int argc, const char** argv) {
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if (argc != 3) {
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LOG(ERROR) << "usage: example input-file output-file";
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return EXIT_FAILURE;
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}
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auto status = LibPNGMain(argv[1], argv[2]);
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if (!status.ok()) {
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LOG(ERROR) << "LibPNGMain failed with error:\n"
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<< status.ToString() << '\n';
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return EXIT_FAILURE;
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}
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return EXIT_SUCCESS;
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}
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