b0a1266835
It appears that readdir() on Linux detects file types unreliably, always setting the "d_type" field to DT_UNKNOWN for some less common filesystems. As a result, all files were skipped and no certificate bundles were found when the state directory was located on such filesystems. Skipping "." and ".." instead of any non-regular files should be enough, as no other non-regular files normally appear in this directory. This closes #368 issue on GitHub.
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