1 /* 2 * Copyright (C) 2018 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef IDMAP2_INCLUDE_IDMAP2_FILEUTILS_H_ 18 #define IDMAP2_INCLUDE_IDMAP2_FILEUTILS_H_ 19 20 #include <sys/types.h> 21 22 #include <functional> 23 #include <memory> 24 #include <string> 25 #include <vector> 26 27 namespace android::idmap2::utils { 28 29 constexpr const char* kIdmapCacheDir = "/data/resource-cache"; 30 constexpr const mode_t kIdmapFilePermissionMask = 0133; // u=rw,g=r,o=r 31 32 typedef std::function<bool(unsigned char type /* DT_* from dirent.h */, const std::string& path)> 33 FindFilesPredicate; 34 std::unique_ptr<std::vector<std::string>> FindFiles(const std::string& root, bool recurse, 35 const FindFilesPredicate& predicate); 36 37 std::unique_ptr<std::string> ReadFile(int fd); 38 39 std::unique_ptr<std::string> ReadFile(const std::string& path); 40 41 bool UidHasWriteAccessToPath(uid_t uid, const std::string& path); 42 43 } // namespace android::idmap2::utils 44 45 #endif // IDMAP2_INCLUDE_IDMAP2_FILEUTILS_H_ 46