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/*
* EGD EntropySource
* (C) 1999-2007 Jack Lloyd
*
* Botan is released under the Simplified BSD License (see license.txt)
*/
#ifndef BOTAN_ENTROPY_SRC_EGD_H__
#define BOTAN_ENTROPY_SRC_EGD_H__
#include <botan/entropy_src.h>
#include <string>
#include <vector>
#include <mutex>
namespace Botan {
/**
* EGD Entropy Source
*/
class EGD_EntropySource final : public Entropy_Source
{
public:
std::string name() const override { return "egd"; }
size_t poll(RandomNumberGenerator& rng) override;
EGD_EntropySource(const std::vector<std::string>&);
~EGD_EntropySource();
private:
class EGD_Socket
{
public:
EGD_Socket(const std::string& path);
void close();
size_t read(byte outbuf[], size_t length);
private:
static int open_socket(const std::string& path);
std::string m_socket_path;
int m_fd; // cached fd
};
std::mutex m_mutex;
std::vector<EGD_Socket> m_sockets;
secure_vector<uint8_t> m_io_buf;
};
}
#endif
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