raphiaura/KytyPS5
1
0
Fork 0
mirror of https://github.com/KytyPS5/KytyPS5.git synced 2026-10-20 10:56:58 +02:00
Code Issues Packages Projects Releases Wiki Activity

common: remove unused recursive file enumeration (#681)

Browse Source 
common: don't follow reparse points in the Windows recursive file walk

SysFileFindFiles recurses into every entry carrying
FILE_ATTRIBUTE_DIRECTORY, which on Windows includes directory symlinks
and junctions. A junction pointing at one of its own ancestors makes the
walk recurse until the stack runs out.

The Linux implementation already guards against this: it uses lstat
rather than stat specifically so a symlink is never followed into a
cycle. Skip reparse-point entries on Windows for the same reason.

Co-authored-by: nmzik <Nmzik@mail.ru>
This commit is contained in:
Maayan080
2026-09-20 17:50:57 +03:00
committed by GitHub
parent b8ad1d8c4b
commit c3cc8454b9
6 changed files with 0 additions and 157 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/common/platform/sysLinuxFileIO.cpp
-45
View File
@@ -610,51 +610,6 @@ bool SysFileSetLastAccessAndWriteTimeUtc(const std::filesystem::path& name,
// }
}
// Recursively collect regular files.
void SysFileFindFiles(const std::filesystem::path& path, std::vector<sys_file_find_t>& out) {
auto real_path = get_internal_name(path);
DIR* dir = opendir(real_path.string().c_str());
if (dir == nullptr) {
return;
}
for (const dirent* entry = readdir(dir); entry != nullptr; entry = readdir(dir)) {
const std::string file_name(entry->d_name);
if (file_name == "." || file_name == "..") {
continue;
}
auto child = real_path / file_name;
struct stat s {};
// lstat, so a symlink is never followed into a cycle during the recursive walk.
if (0 != lstat(child.string().c_str(), &s)) {
continue;
}
if (S_ISDIR(s.st_mode)) {
SysFileFindFiles(child, out);
} else if (S_ISREG(s.st_mode)) {
sys_file_find_t r {};
r.path_with_name = child;
r.size = static_cast<uint64_t>(s.st_size);
r.last_access_time.is_invalid = false;
r.last_access_time.time = s.st_atime;
r.last_access_time.nanos = KYTY_STAT_ATIME_NS(s);
r.last_write_time.is_invalid = false;
r.last_write_time.time = s.st_mtime;
r.last_write_time.nanos = KYTY_STAT_MTIME_NS(s);
out.push_back(r);
}
}
closedir(dir);
}
// Keep "." and ".." to match FindFirstFileW.
void SysFileGetDents(const std::filesystem::path& path, std::vector<sys_dir_entry_t>& out) {
auto real_path = get_internal_name(path);