You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
73 lines
2.1 KiB
73 lines
2.1 KiB
/*
|
|
* Copyright (C) 2017 The Android Open Source Project
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#include "directory.h"
|
|
|
|
#include <android-base/stringprintf.h>
|
|
|
|
procfsinspector::Directory::Directory(const char* path) {
|
|
if (path && path[0]) {
|
|
mPath.assign(path);
|
|
mDirectory.reset(opendir(path));
|
|
}
|
|
}
|
|
|
|
bool procfsinspector::Directory::Entry::isEmpty() const {
|
|
return mParent.empty() && mChild.empty();
|
|
}
|
|
|
|
procfsinspector::Directory::Entry::Entry(std::string parent, std::string child) :
|
|
mParent(parent), mChild(child) {
|
|
if (!isEmpty()) {
|
|
if (mParent.back() != '/') {
|
|
mParent += '/';
|
|
}
|
|
}
|
|
}
|
|
|
|
std::string procfsinspector::Directory::Entry::str() {
|
|
return mParent + mChild;
|
|
}
|
|
|
|
uid_t procfsinspector::Directory::Entry::getOwnerUserId() {
|
|
if (isEmpty()) {
|
|
return -1;
|
|
}
|
|
struct stat buf;
|
|
// fill in stat info for this entry, or return invalid UID on failure
|
|
if (stat(str().c_str(), &buf)) {
|
|
return -1;
|
|
}
|
|
return buf.st_uid;
|
|
}
|
|
|
|
procfsinspector::Directory::Entry procfsinspector::Directory::next(unsigned char type) {
|
|
if (auto dir = mDirectory.get()) {
|
|
dirent *entry = readdir(dir);
|
|
if (entry) {
|
|
// only return entries of the right type (regular file, directory, ...)
|
|
// but always return UNKNOWN entries as it is an allowed wildcard entry
|
|
if (entry->d_type == DT_UNKNOWN ||
|
|
type == DT_UNKNOWN ||
|
|
entry->d_type == type) {
|
|
return Entry(mPath, entry->d_name);
|
|
}
|
|
}
|
|
}
|
|
|
|
return Entry();
|
|
}
|