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scanner: don't skip directory entries with type DT_UNKNOWN #2703

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merged 1 commit into from
May 3, 2024
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scanner: don't skip directory entries with type DT_UNKNOWN #2703

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8 changes: 6 additions & 2 deletions lib/mu-scanner.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -215,9 +215,13 @@ Scanner::Private::process_dir(const std::string& path, bool is_maildir)
while (running_) {
errno = 0;
if (const auto& dentry{::readdir(dir)}; dentry) {
#if HAVE_DIRENT_D_TYPE /* opttimization: filter out non-dirs early */
#if HAVE_DIRENT_D_TYPE /* optimization: filter out non-dirs early. NB not all file-systems support
* returning the file-type in `d_type`, so don't skip `DT_UNKNOWN`.
*/
if (maildirs_only_mode() &&
dentry->d_type != DT_DIR && dentry->d_type != DT_LNK)
dentry->d_type != DT_DIR &&
dentry->d_type != DT_LNK &&
dentry->d_type != DT_UNKNOWN)
continue;
#endif /*HAVE_DIRENT_D_TYPE*/
dir_entries.emplace_back(dentry);
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