1 files changed, 45 insertions, 0 deletions
diff --git a/src/libs/3rdparty/botan/src/lib/entropy/proc_walk/proc_walk.h b/src/libs/3rdparty/botan/src/lib/entropy/proc_walk/proc_walk.h
new file mode 100644
index 0000000000..4c5013d29c
--- /dev/null
+++ b/src/libs/3rdparty/botan/src/lib/entropy/proc_walk/proc_walk.h
@@ -0,0 +1,45 @@
+/*
+* File Tree Walking EntropySource
+* (C) 1999-2008 Jack Lloyd
+*
+* Botan is released under the Simplified BSD License (see license.txt)
+*/
+
+#ifndef BOTAN_ENTROPY_SRC_PROC_WALK_H_
+#define BOTAN_ENTROPY_SRC_PROC_WALK_H_
+
+#include <botan/entropy_src.h>
+#include <botan/mutex.h>
+
+namespace Botan {
+
+class File_Descriptor_Source
+   {
+   public:
+      virtual int next_fd() = 0;
+      virtual ~File_Descriptor_Source() = default;
+   };
+
+/**
+* File Tree Walking Entropy Source
+*/
+class ProcWalking_EntropySource final : public Entropy_Source
+   {
+   public:
+      std::string name() const override { return "proc_walk"; }
+
+      size_t poll(RandomNumberGenerator& rng) override;
+
+      explicit ProcWalking_EntropySource(const std::string& root_dir) :
+         m_path(root_dir), m_dir(nullptr) {}
+
+   private:
+      const std::string m_path;
+      mutex_type m_mutex;
+      std::unique_ptr<File_Descriptor_Source> m_dir;
+      secure_vector<uint8_t> m_buf;
+   };
+
+}
+
+#endif