| // Copyright 2020 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef CHROME_UPDATER_WIN_TAG_EXTRACTOR_H_ |
| #define CHROME_UPDATER_WIN_TAG_EXTRACTOR_H_ |
| |
| #include <string> |
| |
| namespace updater { |
| |
| // The character encoding of tag in the binary. The tag is stored differently |
| // depending on the encoding: |
| // |
| // UTF-8: |
| // Encoded length - the length in bytes of the tag is stored as a |
| // big-endian uint16_t right after the magic string. |
| // |
| // Format: <Start Magic><Tag length><Tag> |
| // |
| // UTF-16: |
| // End magic string - the tag is enclosed within two different magic |
| // strings. The tag is stored as big-endian. |
| // |
| // Format: <Start Magic><Tag><End Magic> |
| // |
| enum class TagEncoding { |
| kUtf8, |
| kUtf16, |
| }; |
| |
| // Returns the UTF-8 encoding of the tag, or an empty string if not found. |
| std::string ExtractTagFromFile(const std::wstring& path, TagEncoding encoding); |
| |
| } // namespace updater |
| |
| #endif // CHROME_UPDATER_WIN_TAG_EXTRACTOR_H_ |
