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62 lines
2.0 KiB
62 lines
2.0 KiB
/*
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* Copyright (C) 2019 The Android Open Source Project
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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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* http://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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*/
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#define LOG_TAG "ReaddirHelper"
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#include "libfuse_jni/ReaddirHelper.h"
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#include <android-base/logging.h>
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#include <sys/types.h>
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namespace mediaprovider {
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namespace fuse {
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namespace {
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inline bool is_dot_or_dotdot(const char* name) {
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return name && name[0] == '.' && (name[1] == '\0' || (name[1] == '.' && name[2] == '\0'));
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}
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} // namespace
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bool isDirectory(const dirent& entry) {
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if (entry.d_type == DT_DIR) return true;
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return false;
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}
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void addDirectoryEntriesFromLowerFs(DIR* dirp, bool (*const filter)(const dirent&),
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std::vector<std::shared_ptr<DirectoryEntry>>* directory_entries) {
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while (1) {
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errno = 0;
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const struct dirent* entry = readdir(dirp);
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if (entry == nullptr) {
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if (errno) {
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PLOG(ERROR) << "DEBUG: readdir(): readdir failed with %d" << errno;
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directory_entries->resize(0);
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directory_entries->push_back(std::make_shared<DirectoryEntry>("", errno));
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}
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break;
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}
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// Ignore '.' & '..' to maintain consistency with directory entries
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// returned by MediaProvider.
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if (is_dot_or_dotdot(entry->d_name)) continue;
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if (filter == nullptr || filter(*entry)) {
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directory_entries->push_back(
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std::make_shared<DirectoryEntry>(entry->d_name, entry->d_type));
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}
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}
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}
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} // namespace fuse
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} // namespace mediaprovider
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