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-rw-r--r--src/lib/entropy/egd/es_egd.cpp157
1 files changed, 0 insertions, 157 deletions
diff --git a/src/lib/entropy/egd/es_egd.cpp b/src/lib/entropy/egd/es_egd.cpp
deleted file mode 100644
index fdc1c9a0f..000000000
--- a/src/lib/entropy/egd/es_egd.cpp
+++ /dev/null
@@ -1,157 +0,0 @@
-/*
-* EGD EntropySource
-* (C) 1999-2009 Jack Lloyd
-*
-* Botan is released under the Simplified BSD License (see license.txt)
-*/
-
-#include <botan/internal/es_egd.h>
-#include <botan/parsing.h>
-#include <botan/exceptn.h>
-#include <botan/mem_ops.h>
-
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <unistd.h>
-
-#include <sys/socket.h>
-#include <sys/un.h>
-
-#ifndef PF_LOCAL
- #define PF_LOCAL PF_UNIX
-#endif
-
-namespace Botan {
-
-EGD_EntropySource::EGD_Socket::EGD_Socket(const std::string& path) :
- m_socket_path(path), m_fd(-1)
- {
- }
-
-/**
-* Attempt a connection to an EGD/PRNGD socket
-*/
-int EGD_EntropySource::EGD_Socket::open_socket(const std::string& path)
- {
- int fd = ::socket(PF_LOCAL, SOCK_STREAM, 0);
-
- if(fd >= 0)
- {
- sockaddr_un addr;
- clear_mem(&addr, 1);
- addr.sun_family = PF_LOCAL;
-
- if(path.length() >= sizeof(addr.sun_path))
- throw Invalid_Argument("EGD socket path is too long");
-
- std::strncpy(addr.sun_path, path.c_str(), sizeof(addr.sun_path));
-
- int len = sizeof(addr.sun_family) + std::strlen(addr.sun_path) + 1;
-
- if(::connect(fd, reinterpret_cast<struct ::sockaddr*>(&addr), len) < 0)
- {
- ::close(fd);
- fd = -1;
- }
- }
-
- return fd;
- }
-
-/**
-* Attempt to read entropy from EGD
-*/
-size_t EGD_EntropySource::EGD_Socket::read(byte outbuf[], size_t length)
- {
- if(length == 0)
- return 0;
-
- if(m_fd < 0)
- {
- m_fd = open_socket(m_socket_path);
- if(m_fd < 0)
- return 0;
- }
-
- try
- {
- // 1 == EGD command for non-blocking read
- byte egd_read_command[2] = {
- 1, static_cast<byte>(std::min<size_t>(length, 255)) };
-
- if(::write(m_fd, egd_read_command, 2) != 2)
- throw Exception("Writing entropy read command to EGD failed");
-
- byte out_len = 0;
- if(::read(m_fd, &out_len, 1) != 1)
- throw Exception("Reading response length from EGD failed");
-
- if(out_len > egd_read_command[1])
- throw Exception("Bogus length field received from EGD");
-
- ssize_t count = ::read(m_fd, outbuf, out_len);
-
- if(count != out_len)
- throw Exception("Reading entropy result from EGD failed");
-
- return static_cast<size_t>(count);
- }
- catch(std::exception)
- {
- this->close();
- // Will attempt to reopen next poll
- }
-
- return 0;
- }
-
-void EGD_EntropySource::EGD_Socket::close()
- {
- if(m_fd >= 0)
- {
- ::close(m_fd);
- m_fd = -1;
- }
- }
-
-/**
-* EGD_EntropySource constructor
-*/
-EGD_EntropySource::EGD_EntropySource(const std::vector<std::string>& paths)
- {
- for(size_t i = 0; i != paths.size(); ++i)
- m_sockets.push_back(EGD_Socket(paths[i]));
- }
-
-EGD_EntropySource::~EGD_EntropySource()
- {
- for(size_t i = 0; i != m_sockets.size(); ++i)
- m_sockets[i].close();
- m_sockets.clear();
- }
-
-/**
-* Gather Entropy from EGD
-*/
-size_t EGD_EntropySource::poll(RandomNumberGenerator& rng)
- {
- lock_guard_type<mutex_type> lock(m_mutex);
-
- secure_vector<byte> buf(BOTAN_SYSTEM_RNG_POLL_REQUEST);
-
- for(size_t i = 0; i != m_sockets.size(); ++i)
- {
- size_t got = m_sockets[i].read(m_io_buf.data(), m_io_buf.size());
-
- if(got)
- {
- rng.add_entropy(m_io_buf.data(), got);
- return got * 8;
- }
- }
-
- return 0;
- }
-
-}