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Exclude dot directories when searching ZEEK_PLUGIN_PATH

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Dot directories rarely contain anything we would want to load as a
dynamic plugin. Even worse, they likely contain files with externally
controlled lifetimes which might be removed while we are using them
(see e.g., zeek/btest#98).

With this patch we do not search _discovered_ dot directories anymore.
We continue to load from a user-specified `ZEEK_PLUGIN_PATH`, even if
its name starts with a dot.

Since this patch changes previous behavior it is a **BREAKING CHANGE**.
This commit is contained in:
Benjamin Bannier 2023-09-25 15:32:54 +02:00
parent 599037d215
commit 0896f09081
2 changed files with 24 additions and 0 deletions
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4
src/plugin/Manager.cc
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@ -147,6 +147,10 @@ void Manager::SearchDynamicPlugins(const std::string& dir)
if ( strcmp(dp->d_name, "..") == 0 || strcmp(dp->d_name, ".") == 0 )
continue;
// We do not search plugins in discovered dot directories.
if ( (dp->d_name[0] == '.') && dp->d_type == DT_DIR )
continue;
string path = dir + "/" + dp->d_name;
if ( stat(path.c_str(), &st) < 0 )