From e95946831f8ef53d29590735a2df661385edb008 Mon Sep 17 00:00:00 2001
From: "Matthias P. Braendli" <matthias.braendli@mpb.li>
Date: Mon, 6 Aug 2018 10:35:22 +0200
Subject: Replace boost by the standalone asio library
---
lib/asio/ssl/detail/buffered_handshake_op.hpp | 114 ++++++++
lib/asio/ssl/detail/engine.hpp | 160 +++++++++++
lib/asio/ssl/detail/handshake_op.hpp | 62 +++++
lib/asio/ssl/detail/impl/engine.ipp | 322 ++++++++++++++++++++++
lib/asio/ssl/detail/impl/openssl_init.ipp | 165 ++++++++++++
lib/asio/ssl/detail/io.hpp | 372 ++++++++++++++++++++++++++
lib/asio/ssl/detail/openssl_init.hpp | 101 +++++++
lib/asio/ssl/detail/openssl_types.hpp | 30 +++
lib/asio/ssl/detail/password_callback.hpp | 66 +++++
lib/asio/ssl/detail/read_op.hpp | 67 +++++
lib/asio/ssl/detail/shutdown_op.hpp | 54 ++++
lib/asio/ssl/detail/stream_core.hpp | 134 ++++++++++
lib/asio/ssl/detail/verify_callback.hpp | 62 +++++
lib/asio/ssl/detail/write_op.hpp | 67 +++++
14 files changed, 1776 insertions(+)
create mode 100644 lib/asio/ssl/detail/buffered_handshake_op.hpp
create mode 100644 lib/asio/ssl/detail/engine.hpp
create mode 100644 lib/asio/ssl/detail/handshake_op.hpp
create mode 100644 lib/asio/ssl/detail/impl/engine.ipp
create mode 100644 lib/asio/ssl/detail/impl/openssl_init.ipp
create mode 100644 lib/asio/ssl/detail/io.hpp
create mode 100644 lib/asio/ssl/detail/openssl_init.hpp
create mode 100644 lib/asio/ssl/detail/openssl_types.hpp
create mode 100644 lib/asio/ssl/detail/password_callback.hpp
create mode 100644 lib/asio/ssl/detail/read_op.hpp
create mode 100644 lib/asio/ssl/detail/shutdown_op.hpp
create mode 100644 lib/asio/ssl/detail/stream_core.hpp
create mode 100644 lib/asio/ssl/detail/verify_callback.hpp
create mode 100644 lib/asio/ssl/detail/write_op.hpp
(limited to 'lib/asio/ssl/detail')
diff --git a/lib/asio/ssl/detail/buffered_handshake_op.hpp b/lib/asio/ssl/detail/buffered_handshake_op.hpp
new file mode 100644
index 0000000..38a03fc
--- /dev/null
+++ b/lib/asio/ssl/detail/buffered_handshake_op.hpp
@@ -0,0 +1,114 @@
+//
+// ssl/detail/buffered_handshake_op.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_SSL_DETAIL_BUFFERED_HANDSHAKE_OP_HPP
+#define ASIO_SSL_DETAIL_BUFFERED_HANDSHAKE_OP_HPP
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1200)
+# pragma once
+#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
+
+#include "asio/detail/config.hpp"
+
+#include "asio/ssl/detail/engine.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace ssl {
+namespace detail {
+
+template <typename ConstBufferSequence>
+class buffered_handshake_op
+{
+public:
+ buffered_handshake_op(stream_base::handshake_type type,
+ const ConstBufferSequence& buffers)
+ : type_(type),
+ buffers_(buffers),
+ total_buffer_size_(asio::buffer_size(buffers_))
+ {
+ }
+
+ engine::want operator()(engine& eng,
+ asio::error_code& ec,
+ std::size_t& bytes_transferred) const
+ {
+ return this->process(eng, ec, bytes_transferred,
+ asio::buffer_sequence_begin(buffers_),
+ asio::buffer_sequence_end(buffers_));
+ }
+
+ template <typename Handler>
+ void call_handler(Handler& handler,
+ const asio::error_code& ec,
+ const std::size_t& bytes_transferred) const
+ {
+ handler(ec, bytes_transferred);
+ }
+
+private:
+ template <typename Iterator>
+ engine::want process(engine& eng,
+ asio::error_code& ec,
+ std::size_t& bytes_transferred,
+ Iterator begin, Iterator end) const
+ {
+ Iterator iter = begin;
+ std::size_t accumulated_size = 0;
+
+ for (;;)
+ {
+ engine::want want = eng.handshake(type_, ec);
+ if (want != engine::want_input_and_retry
+ || bytes_transferred == total_buffer_size_)
+ return want;
+
+ // Find the next buffer piece to be fed to the engine.
+ while (iter != end)
+ {
+ const_buffer buffer(*iter);
+
+ // Skip over any buffers which have already been consumed by the engine.
+ if (bytes_transferred >= accumulated_size + buffer.size())
+ {
+ accumulated_size += buffer.size();
+ ++iter;
+ continue;
+ }
+
+ // The current buffer may have been partially consumed by the engine on
+ // a previous iteration. If so, adjust the buffer to point to the
+ // unused portion.
+ if (bytes_transferred > accumulated_size)
+ buffer = buffer + (bytes_transferred - accumulated_size);
+
+ // Pass the buffer to the engine, and update the bytes transferred to
+ // reflect the total number of bytes consumed so far.
+ bytes_transferred += buffer.size();
+ buffer = eng.put_input(buffer);
+ bytes_transferred -= buffer.size();
+ break;
+ }
+ }
+ }
+
+ stream_base::handshake_type type_;
+ ConstBufferSequence buffers_;
+ std::size_t total_buffer_size_;
+};
+
+} // namespace detail
+} // namespace ssl
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_SSL_DETAIL_BUFFERED_HANDSHAKE_OP_HPP
diff --git a/lib/asio/ssl/detail/engine.hpp b/lib/asio/ssl/detail/engine.hpp
new file mode 100644
index 0000000..2f033d6
--- /dev/null
+++ b/lib/asio/ssl/detail/engine.hpp
@@ -0,0 +1,160 @@
+//
+// ssl/detail/engine.hpp
+// ~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_SSL_DETAIL_ENGINE_HPP
+#define ASIO_SSL_DETAIL_ENGINE_HPP
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1200)
+# pragma once
+#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
+
+#include "asio/detail/config.hpp"
+
+#include "asio/buffer.hpp"
+#include "asio/detail/static_mutex.hpp"
+#include "asio/ssl/detail/openssl_types.hpp"
+#include "asio/ssl/detail/verify_callback.hpp"
+#include "asio/ssl/stream_base.hpp"
+#include "asio/ssl/verify_mode.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace ssl {
+namespace detail {
+
+class engine
+{
+public:
+ enum want
+ {
+ // Returned by functions to indicate that the engine wants input. The input
+ // buffer should be updated to point to the data. The engine then needs to
+ // be called again to retry the operation.
+ want_input_and_retry = -2,
+
+ // Returned by functions to indicate that the engine wants to write output.
+ // The output buffer points to the data to be written. The engine then
+ // needs to be called again to retry the operation.
+ want_output_and_retry = -1,
+
+ // Returned by functions to indicate that the engine doesn't need input or
+ // output.
+ want_nothing = 0,
+
+ // Returned by functions to indicate that the engine wants to write output.
+ // The output buffer points to the data to be written. After that the
+ // operation is complete, and the engine does not need to be called again.
+ want_output = 1
+ };
+
+ // Construct a new engine for the specified context.
+ ASIO_DECL explicit engine(SSL_CTX* context);
+
+ // Destructor.
+ ASIO_DECL ~engine();
+
+ // Get the underlying implementation in the native type.
+ ASIO_DECL SSL* native_handle();
+
+ // Set the peer verification mode.
+ ASIO_DECL asio::error_code set_verify_mode(
+ verify_mode v, asio::error_code& ec);
+
+ // Set the peer verification depth.
+ ASIO_DECL asio::error_code set_verify_depth(
+ int depth, asio::error_code& ec);
+
+ // Set a peer certificate verification callback.
+ ASIO_DECL asio::error_code set_verify_callback(
+ verify_callback_base* callback, asio::error_code& ec);
+
+ // Perform an SSL handshake using either SSL_connect (client-side) or
+ // SSL_accept (server-side).
+ ASIO_DECL want handshake(
+ stream_base::handshake_type type, asio::error_code& ec);
+
+ // Perform a graceful shutdown of the SSL session.
+ ASIO_DECL want shutdown(asio::error_code& ec);
+
+ // Write bytes to the SSL session.
+ ASIO_DECL want write(const asio::const_buffer& data,
+ asio::error_code& ec, std::size_t& bytes_transferred);
+
+ // Read bytes from the SSL session.
+ ASIO_DECL want read(const asio::mutable_buffer& data,
+ asio::error_code& ec, std::size_t& bytes_transferred);
+
+ // Get output data to be written to the transport.
+ ASIO_DECL asio::mutable_buffer get_output(
+ const asio::mutable_buffer& data);
+
+ // Put input data that was read from the transport.
+ ASIO_DECL asio::const_buffer put_input(
+ const asio::const_buffer& data);
+
+ // Map an error::eof code returned by the underlying transport according to
+ // the type and state of the SSL session. Returns a const reference to the
+ // error code object, suitable for passing to a completion handler.
+ ASIO_DECL const asio::error_code& map_error_code(
+ asio::error_code& ec) const;
+
+private:
+ // Disallow copying and assignment.
+ engine(const engine&);
+ engine& operator=(const engine&);
+
+ // Callback used when the SSL implementation wants to verify a certificate.
+ ASIO_DECL static int verify_callback_function(
+ int preverified, X509_STORE_CTX* ctx);
+
+#if (OPENSSL_VERSION_NUMBER < 0x10000000L)
+ // The SSL_accept function may not be thread safe. This mutex is used to
+ // protect all calls to the SSL_accept function.
+ ASIO_DECL static asio::detail::static_mutex& accept_mutex();
+#endif // (OPENSSL_VERSION_NUMBER < 0x10000000L)
+
+ // Perform one operation. Returns >= 0 on success or error, want_read if the
+ // operation needs more input, or want_write if it needs to write some output
+ // before the operation can complete.
+ ASIO_DECL want perform(int (engine::* op)(void*, std::size_t),
+ void* data, std::size_t length, asio::error_code& ec,
+ std::size_t* bytes_transferred);
+
+ // Adapt the SSL_accept function to the signature needed for perform().
+ ASIO_DECL int do_accept(void*, std::size_t);
+
+ // Adapt the SSL_connect function to the signature needed for perform().
+ ASIO_DECL int do_connect(void*, std::size_t);
+
+ // Adapt the SSL_shutdown function to the signature needed for perform().
+ ASIO_DECL int do_shutdown(void*, std::size_t);
+
+ // Adapt the SSL_read function to the signature needed for perform().
+ ASIO_DECL int do_read(void* data, std::size_t length);
+
+ // Adapt the SSL_write function to the signature needed for perform().
+ ASIO_DECL int do_write(void* data, std::size_t length);
+
+ SSL* ssl_;
+ BIO* ext_bio_;
+};
+
+} // namespace detail
+} // namespace ssl
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#if defined(ASIO_HEADER_ONLY)
+# include "asio/ssl/detail/impl/engine.ipp"
+#endif // defined(ASIO_HEADER_ONLY)
+
+#endif // ASIO_SSL_DETAIL_ENGINE_HPP
diff --git a/lib/asio/ssl/detail/handshake_op.hpp b/lib/asio/ssl/detail/handshake_op.hpp
new file mode 100644
index 0000000..f782023
--- /dev/null
+++ b/lib/asio/ssl/detail/handshake_op.hpp
@@ -0,0 +1,62 @@
+//
+// ssl/detail/handshake_op.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_SSL_DETAIL_HANDSHAKE_OP_HPP
+#define ASIO_SSL_DETAIL_HANDSHAKE_OP_HPP
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1200)
+# pragma once
+#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
+
+#include "asio/detail/config.hpp"
+
+#include "asio/ssl/detail/engine.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace ssl {
+namespace detail {
+
+class handshake_op
+{
+public:
+ handshake_op(stream_base::handshake_type type)
+ : type_(type)
+ {
+ }
+
+ engine::want operator()(engine& eng,
+ asio::error_code& ec,
+ std::size_t& bytes_transferred) const
+ {
+ bytes_transferred = 0;
+ return eng.handshake(type_, ec);
+ }
+
+ template <typename Handler>
+ void call_handler(Handler& handler,
+ const asio::error_code& ec,
+ const std::size_t&) const
+ {
+ handler(ec);
+ }
+
+private:
+ stream_base::handshake_type type_;
+};
+
+} // namespace detail
+} // namespace ssl
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_SSL_DETAIL_HANDSHAKE_OP_HPP
diff --git a/lib/asio/ssl/detail/impl/engine.ipp b/lib/asio/ssl/detail/impl/engine.ipp
new file mode 100644
index 0000000..e60e8d6
--- /dev/null
+++ b/lib/asio/ssl/detail/impl/engine.ipp
@@ -0,0 +1,322 @@
+//
+// ssl/detail/impl/engine.ipp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_SSL_DETAIL_IMPL_ENGINE_IPP
+#define ASIO_SSL_DETAIL_IMPL_ENGINE_IPP
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1200)
+# pragma once
+#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
+
+#include "asio/detail/config.hpp"
+
+#include "asio/detail/throw_error.hpp"
+#include "asio/error.hpp"
+#include "asio/ssl/detail/engine.hpp"
+#include "asio/ssl/error.hpp"
+#include "asio/ssl/verify_context.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace ssl {
+namespace detail {
+
+engine::engine(SSL_CTX* context)
+ : ssl_(::SSL_new(context))
+{
+ if (!ssl_)
+ {
+ asio::error_code ec(
+ static_cast<int>(::ERR_get_error()),
+ asio::error::get_ssl_category());
+ asio::detail::throw_error(ec, "engine");
+ }
+
+#if (OPENSSL_VERSION_NUMBER < 0x10000000L)
+ accept_mutex().init();
+#endif // (OPENSSL_VERSION_NUMBER < 0x10000000L)
+
+ ::SSL_set_mode(ssl_, SSL_MODE_ENABLE_PARTIAL_WRITE);
+ ::SSL_set_mode(ssl_, SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER);
+#if defined(SSL_MODE_RELEASE_BUFFERS)
+ ::SSL_set_mode(ssl_, SSL_MODE_RELEASE_BUFFERS);
+#endif // defined(SSL_MODE_RELEASE_BUFFERS)
+
+ ::BIO* int_bio = 0;
+ ::BIO_new_bio_pair(&int_bio, 0, &ext_bio_, 0);
+ ::SSL_set_bio(ssl_, int_bio, int_bio);
+}
+
+engine::~engine()
+{
+ if (SSL_get_app_data(ssl_))
+ {
+ delete static_cast<verify_callback_base*>(SSL_get_app_data(ssl_));
+ SSL_set_app_data(ssl_, 0);
+ }
+
+ ::BIO_free(ext_bio_);
+ ::SSL_free(ssl_);
+}
+
+SSL* engine::native_handle()
+{
+ return ssl_;
+}
+
+asio::error_code engine::set_verify_mode(
+ verify_mode v, asio::error_code& ec)
+{
+ ::SSL_set_verify(ssl_, v, ::SSL_get_verify_callback(ssl_));
+
+ ec = asio::error_code();
+ return ec;
+}
+
+asio::error_code engine::set_verify_depth(
+ int depth, asio::error_code& ec)
+{
+ ::SSL_set_verify_depth(ssl_, depth);
+
+ ec = asio::error_code();
+ return ec;
+}
+
+asio::error_code engine::set_verify_callback(
+ verify_callback_base* callback, asio::error_code& ec)
+{
+ if (SSL_get_app_data(ssl_))
+ delete static_cast<verify_callback_base*>(SSL_get_app_data(ssl_));
+
+ SSL_set_app_data(ssl_, callback);
+
+ ::SSL_set_verify(ssl_, ::SSL_get_verify_mode(ssl_),
+ &engine::verify_callback_function);
+
+ ec = asio::error_code();
+ return ec;
+}
+
+int engine::verify_callback_function(int preverified, X509_STORE_CTX* ctx)
+{
+ if (ctx)
+ {
+ if (SSL* ssl = static_cast<SSL*>(
+ ::X509_STORE_CTX_get_ex_data(
+ ctx, ::SSL_get_ex_data_X509_STORE_CTX_idx())))
+ {
+ if (SSL_get_app_data(ssl))
+ {
+ verify_callback_base* callback =
+ static_cast<verify_callback_base*>(
+ SSL_get_app_data(ssl));
+
+ verify_context verify_ctx(ctx);
+ return callback->call(preverified != 0, verify_ctx) ? 1 : 0;
+ }
+ }
+ }
+
+ return 0;
+}
+
+engine::want engine::handshake(
+ stream_base::handshake_type type, asio::error_code& ec)
+{
+ return perform((type == asio::ssl::stream_base::client)
+ ? &engine::do_connect : &engine::do_accept, 0, 0, ec, 0);
+}
+
+engine::want engine::shutdown(asio::error_code& ec)
+{
+ return perform(&engine::do_shutdown, 0, 0, ec, 0);
+}
+
+engine::want engine::write(const asio::const_buffer& data,
+ asio::error_code& ec, std::size_t& bytes_transferred)
+{
+ if (data.size() == 0)
+ {
+ ec = asio::error_code();
+ return engine::want_nothing;
+ }
+
+ return perform(&engine::do_write,
+ const_cast<void*>(data.data()),
+ data.size(), ec, &bytes_transferred);
+}
+
+engine::want engine::read(const asio::mutable_buffer& data,
+ asio::error_code& ec, std::size_t& bytes_transferred)
+{
+ if (data.size() == 0)
+ {
+ ec = asio::error_code();
+ return engine::want_nothing;
+ }
+
+ return perform(&engine::do_read, data.data(),
+ data.size(), ec, &bytes_transferred);
+}
+
+asio::mutable_buffer engine::get_output(
+ const asio::mutable_buffer& data)
+{
+ int length = ::BIO_read(ext_bio_,
+ data.data(), static_cast<int>(data.size()));
+
+ return asio::buffer(data,
+ length > 0 ? static_cast<std::size_t>(length) : 0);
+}
+
+asio::const_buffer engine::put_input(
+ const asio::const_buffer& data)
+{
+ int length = ::BIO_write(ext_bio_,
+ data.data(), static_cast<int>(data.size()));
+
+ return asio::buffer(data +
+ (length > 0 ? static_cast<std::size_t>(length) : 0));
+}
+
+const asio::error_code& engine::map_error_code(
+ asio::error_code& ec) const
+{
+ // We only want to map the error::eof code.
+ if (ec != asio::error::eof)
+ return ec;
+
+ // If there's data yet to be read, it's an error.
+ if (BIO_wpending(ext_bio_))
+ {
+ ec = asio::ssl::error::stream_truncated;
+ return ec;
+ }
+
+ // SSL v2 doesn't provide a protocol-level shutdown, so an eof on the
+ // underlying transport is passed through.
+#if (OPENSSL_VERSION_NUMBER < 0x10100000L)
+ if (SSL_version(ssl_) == SSL2_VERSION)
+ return ec;
+#endif // (OPENSSL_VERSION_NUMBER < 0x10100000L)
+
+ // Otherwise, the peer should have negotiated a proper shutdown.
+ if ((::SSL_get_shutdown(ssl_) & SSL_RECEIVED_SHUTDOWN) == 0)
+ {
+ ec = asio::ssl::error::stream_truncated;
+ }
+
+ return ec;
+}
+
+#if (OPENSSL_VERSION_NUMBER < 0x10000000L)
+asio::detail::static_mutex& engine::accept_mutex()
+{
+ static asio::detail::static_mutex mutex = ASIO_STATIC_MUTEX_INIT;
+ return mutex;
+}
+#endif // (OPENSSL_VERSION_NUMBER < 0x10000000L)
+
+engine::want engine::perform(int (engine::* op)(void*, std::size_t),
+ void* data, std::size_t length, asio::error_code& ec,
+ std::size_t* bytes_transferred)
+{
+ std::size_t pending_output_before = ::BIO_ctrl_pending(ext_bio_);
+ ::ERR_clear_error();
+ int result = (this->*op)(data, length);
+ int ssl_error = ::SSL_get_error(ssl_, result);
+ int sys_error = static_cast<int>(::ERR_get_error());
+ std::size_t pending_output_after = ::BIO_ctrl_pending(ext_bio_);
+
+ if (ssl_error == SSL_ERROR_SSL)
+ {
+ ec = asio::error_code(sys_error,
+ asio::error::get_ssl_category());
+ return want_nothing;
+ }
+
+ if (ssl_error == SSL_ERROR_SYSCALL)
+ {
+ ec = asio::error_code(sys_error,
+ asio::error::get_system_category());
+ return want_nothing;
+ }
+
+ if (result > 0 && bytes_transferred)
+ *bytes_transferred = static_cast<std::size_t>(result);
+
+ if (ssl_error == SSL_ERROR_WANT_WRITE)
+ {
+ ec = asio::error_code();
+ return want_output_and_retry;
+ }
+ else if (pending_output_after > pending_output_before)
+ {
+ ec = asio::error_code();
+ return result > 0 ? want_output : want_output_and_retry;
+ }
+ else if (ssl_error == SSL_ERROR_WANT_READ)
+ {
+ ec = asio::error_code();
+ return want_input_and_retry;
+ }
+ else if (::SSL_get_shutdown(ssl_) & SSL_RECEIVED_SHUTDOWN)
+ {
+ ec = asio::error::eof;
+ return want_nothing;
+ }
+ else
+ {
+ ec = asio::error_code();
+ return want_nothing;
+ }
+}
+
+int engine::do_accept(void*, std::size_t)
+{
+#if (OPENSSL_VERSION_NUMBER < 0x10000000L)
+ asio::detail::static_mutex::scoped_lock lock(accept_mutex());
+#endif // (OPENSSL_VERSION_NUMBER < 0x10000000L)
+ return ::SSL_accept(ssl_);
+}
+
+int engine::do_connect(void*, std::size_t)
+{
+ return ::SSL_connect(ssl_);
+}
+
+int engine::do_shutdown(void*, std::size_t)
+{
+ int result = ::SSL_shutdown(ssl_);
+ if (result == 0)
+ result = ::SSL_shutdown(ssl_);
+ return result;
+}
+
+int engine::do_read(void* data, std::size_t length)
+{
+ return ::SSL_read(ssl_, data,
+ length < INT_MAX ? static_cast<int>(length) : INT_MAX);
+}
+
+int engine::do_write(void* data, std::size_t length)
+{
+ return ::SSL_write(ssl_, data,
+ length < INT_MAX ? static_cast<int>(length) : INT_MAX);
+}
+
+} // namespace detail
+} // namespace ssl
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_SSL_DETAIL_IMPL_ENGINE_IPP
diff --git a/lib/asio/ssl/detail/impl/openssl_init.ipp b/lib/asio/ssl/detail/impl/openssl_init.ipp
new file mode 100644
index 0000000..fb0fff9
--- /dev/null
+++ b/lib/asio/ssl/detail/impl/openssl_init.ipp
@@ -0,0 +1,165 @@
+//
+// ssl/detail/impl/openssl_init.ipp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2005 Voipster / Indrek dot Juhani at voipster dot com
+// Copyright (c) 2005-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_SSL_DETAIL_IMPL_OPENSSL_INIT_IPP
+#define ASIO_SSL_DETAIL_IMPL_OPENSSL_INIT_IPP
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1200)
+# pragma once
+#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
+
+#include "asio/detail/config.hpp"
+#include <vector>
+#include "asio/detail/assert.hpp"
+#include "asio/detail/mutex.hpp"
+#include "asio/detail/tss_ptr.hpp"
+#include "asio/ssl/detail/openssl_init.hpp"
+#include "asio/ssl/detail/openssl_types.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace ssl {
+namespace detail {
+
+class openssl_init_base::do_init
+{
+public:
+ do_init()
+ {
+#if (OPENSSL_VERSION_NUMBER < 0x10100000L)
+ ::SSL_library_init();
+ ::SSL_load_error_strings();
+ ::OpenSSL_add_all_algorithms();
+
+ mutexes_.resize(::CRYPTO_num_locks());
+ for (size_t i = 0; i < mutexes_.size(); ++i)
+ mutexes_[i].reset(new asio::detail::mutex);
+ ::CRYPTO_set_locking_callback(&do_init::openssl_locking_func);
+#endif // (OPENSSL_VERSION_NUMBER < 0x10100000L)
+#if (OPENSSL_VERSION_NUMBER < 0x10000000L)
+ ::CRYPTO_set_id_callback(&do_init::openssl_id_func);
+#endif // (OPENSSL_VERSION_NUMBER < 0x10000000L)
+
+#if !defined(SSL_OP_NO_COMPRESSION) \
+ && (OPENSSL_VERSION_NUMBER >= 0x00908000L)
+ null_compression_methods_ = sk_SSL_COMP_new_null();
+#endif // !defined(SSL_OP_NO_COMPRESSION)
+ // && (OPENSSL_VERSION_NUMBER >= 0x00908000L)
+ }
+
+ ~do_init()
+ {
+#if !defined(SSL_OP_NO_COMPRESSION) \
+ && (OPENSSL_VERSION_NUMBER >= 0x00908000L)
+ sk_SSL_COMP_free(null_compression_methods_);
+#endif // !defined(SSL_OP_NO_COMPRESSION)
+ // && (OPENSSL_VERSION_NUMBER >= 0x00908000L)
+
+#if (OPENSSL_VERSION_NUMBER < 0x10000000L)
+ ::CRYPTO_set_id_callback(0);
+#endif // (OPENSSL_VERSION_NUMBER < 0x10000000L)
+#if (OPENSSL_VERSION_NUMBER < 0x10100000L)
+ ::CRYPTO_set_locking_callback(0);
+ ::ERR_free_strings();
+ ::EVP_cleanup();
+ ::CRYPTO_cleanup_all_ex_data();
+#endif // (OPENSSL_VERSION_NUMBER < 0x10100000L)
+#if (OPENSSL_VERSION_NUMBER < 0x10000000L)
+ ::ERR_remove_state(0);
+#elif (OPENSSL_VERSION_NUMBER < 0x10100000L)
+ ::ERR_remove_thread_state(NULL);
+#endif // (OPENSSL_VERSION_NUMBER < 0x10000000L)
+#if (OPENSSL_VERSION_NUMBER >= 0x10002000L) \
+ && (OPENSSL_VERSION_NUMBER < 0x10100000L) \
+ && !defined(SSL_OP_NO_COMPRESSION)
+ ::SSL_COMP_free_compression_methods();
+#endif // (OPENSSL_VERSION_NUMBER >= 0x10002000L)
+ // && (OPENSSL_VERSION_NUMBER < 0x10100000L)
+ // && !defined(SSL_OP_NO_COMPRESSION)
+#if !defined(OPENSSL_IS_BORINGSSL)
+ ::CONF_modules_unload(1);
+#endif // !defined(OPENSSL_IS_BORINGSSL)
+#if !defined(OPENSSL_NO_ENGINE) \
+ && (OPENSSL_VERSION_NUMBER < 0x10100000L)
+ ::ENGINE_cleanup();
+#endif // !defined(OPENSSL_NO_ENGINE)
+ // && (OPENSSL_VERSION_NUMBER < 0x10100000L)
+ }
+
+#if !defined(SSL_OP_NO_COMPRESSION) \
+ && (OPENSSL_VERSION_NUMBER >= 0x00908000L)
+ STACK_OF(SSL_COMP)* get_null_compression_methods() const
+ {
+ return null_compression_methods_;
+ }
+#endif // !defined(SSL_OP_NO_COMPRESSION)
+ // && (OPENSSL_VERSION_NUMBER >= 0x00908000L)
+
+private:
+#if (OPENSSL_VERSION_NUMBER < 0x10000000L)
+ static unsigned long openssl_id_func()
+ {
+#if defined(ASIO_WINDOWS) || defined(__CYGWIN__)
+ return ::GetCurrentThreadId();
+#else // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
+ void* id = &errno;
+ ASIO_ASSERT(sizeof(unsigned long) >= sizeof(void*));
+ return reinterpret_cast<unsigned long>(id);
+#endif // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
+ }
+#endif // (OPENSSL_VERSION_NUMBER < 0x10000000L)
+
+#if (OPENSSL_VERSION_NUMBER < 0x10100000L)
+ static void openssl_locking_func(int mode, int n,
+ const char* /*file*/, int /*line*/)
+ {
+ if (mode & CRYPTO_LOCK)
+ instance()->mutexes_[n]->lock();
+ else
+ instance()->mutexes_[n]->unlock();
+ }
+
+ // Mutexes to be used in locking callbacks.
+ std::vector<asio::detail::shared_ptr<
+ asio::detail::mutex> > mutexes_;
+#endif // (OPENSSL_VERSION_NUMBER < 0x10100000L)
+
+#if !defined(SSL_OP_NO_COMPRESSION) \
+ && (OPENSSL_VERSION_NUMBER >= 0x00908000L)
+ STACK_OF(SSL_COMP)* null_compression_methods_;
+#endif // !defined(SSL_OP_NO_COMPRESSION)
+ // && (OPENSSL_VERSION_NUMBER >= 0x00908000L)
+};
+
+asio::detail::shared_ptr<openssl_init_base::do_init>
+openssl_init_base::instance()
+{
+ static asio::detail::shared_ptr<do_init> init(new do_init);
+ return init;
+}
+
+#if !defined(SSL_OP_NO_COMPRESSION) \
+ && (OPENSSL_VERSION_NUMBER >= 0x00908000L)
+STACK_OF(SSL_COMP)* openssl_init_base::get_null_compression_methods()
+{
+ return instance()->get_null_compression_methods();
+}
+#endif // !defined(SSL_OP_NO_COMPRESSION)
+ // && (OPENSSL_VERSION_NUMBER >= 0x00908000L)
+
+} // namespace detail
+} // namespace ssl
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_SSL_DETAIL_IMPL_OPENSSL_INIT_IPP
diff --git a/lib/asio/ssl/detail/io.hpp b/lib/asio/ssl/detail/io.hpp
new file mode 100644
index 0000000..0b0e51a
--- /dev/null
+++ b/lib/asio/ssl/detail/io.hpp
@@ -0,0 +1,372 @@
+//
+// ssl/detail/io.hpp
+// ~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_SSL_DETAIL_IO_HPP
+#define ASIO_SSL_DETAIL_IO_HPP
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1200)
+# pragma once
+#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
+
+#include "asio/detail/config.hpp"
+
+#include "asio/ssl/detail/engine.hpp"
+#include "asio/ssl/detail/stream_core.hpp"
+#include "asio/write.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace ssl {
+namespace detail {
+
+template <typename Stream, typename Operation>
+std::size_t io(Stream& next_layer, stream_core& core,
+ const Operation& op, asio::error_code& ec)
+{
+ std::size_t bytes_transferred = 0;
+ do switch (op(core.engine_, ec, bytes_transferred))
+ {
+ case engine::want_input_and_retry:
+
+ // If the input buffer is empty then we need to read some more data from
+ // the underlying transport.
+ if (core.input_.size() == 0)
+ core.input_ = asio::buffer(core.input_buffer_,
+ next_layer.read_some(core.input_buffer_, ec));
+
+ // Pass the new input data to the engine.
+ core.input_ = core.engine_.put_input(core.input_);
+
+ // Try the operation again.
+ continue;
+
+ case engine::want_output_and_retry:
+
+ // Get output data from the engine and write it to the underlying
+ // transport.
+ asio::write(next_layer,
+ core.engine_.get_output(core.output_buffer_), ec);
+
+ // Try the operation again.
+ continue;
+
+ case engine::want_output:
+
+ // Get output data from the engine and write it to the underlying
+ // transport.
+ asio::write(next_layer,
+ core.engine_.get_output(core.output_buffer_), ec);
+
+ // Operation is complete. Return result to caller.
+ core.engine_.map_error_code(ec);
+ return bytes_transferred;
+
+ default:
+
+ // Operation is complete. Return result to caller.
+ core.engine_.map_error_code(ec);
+ return bytes_transferred;
+
+ } while (!ec);
+
+ // Operation failed. Return result to caller.
+ core.engine_.map_error_code(ec);
+ return 0;
+}
+
+template <typename Stream, typename Operation, typename Handler>
+class io_op
+{
+public:
+ io_op(Stream& next_layer, stream_core& core,
+ const Operation& op, Handler& handler)
+ : next_layer_(next_layer),
+ core_(core),
+ op_(op),
+ start_(0),
+ want_(engine::want_nothing),
+ bytes_transferred_(0),
+ handler_(ASIO_MOVE_CAST(Handler)(handler))
+ {
+ }
+
+#if defined(ASIO_HAS_MOVE)
+ io_op(const io_op& other)
+ : next_layer_(other.next_layer_),
+ core_(other.core_),
+ op_(other.op_),
+ start_(other.start_),
+ want_(other.want_),
+ ec_(other.ec_),
+ bytes_transferred_(other.bytes_transferred_),
+ handler_(other.handler_)
+ {
+ }
+
+ io_op(io_op&& other)
+ : next_layer_(other.next_layer_),
+ core_(other.core_),
+ op_(ASIO_MOVE_CAST(Operation)(other.op_)),
+ start_(other.start_),
+ want_(other.want_),
+ ec_(other.ec_),
+ bytes_transferred_(other.bytes_transferred_),
+ handler_(ASIO_MOVE_CAST(Handler)(other.handler_))
+ {
+ }
+#endif // defined(ASIO_HAS_MOVE)
+
+ void operator()(asio::error_code ec,
+ std::size_t bytes_transferred = ~std::size_t(0), int start = 0)
+ {
+ switch (start_ = start)
+ {
+ case 1: // Called after at least one async operation.
+ do
+ {
+ switch (want_ = op_(core_.engine_, ec_, bytes_transferred_))
+ {
+ case engine::want_input_and_retry:
+
+ // If the input buffer already has data in it we can pass it to the
+ // engine and then retry the operation immediately.
+ if (core_.input_.size() != 0)
+ {
+ core_.input_ = core_.engine_.put_input(core_.input_);
+ continue;
+ }
+
+ // The engine wants more data to be read from input. However, we
+ // cannot allow more than one read operation at a time on the
+ // underlying transport. The pending_read_ timer's expiry is set to
+ // pos_infin if a read is in progress, and neg_infin otherwise.
+ if (core_.expiry(core_.pending_read_) == core_.neg_infin())
+ {
+ // Prevent other read operations from being started.
+ core_.pending_read_.expires_at(core_.pos_infin());
+
+ // Start reading some data from the underlying transport.
+ next_layer_.async_read_some(
+ asio::buffer(core_.input_buffer_),
+ ASIO_MOVE_CAST(io_op)(*this));
+ }
+ else
+ {
+ // Wait until the current read operation completes.
+ core_.pending_read_.async_wait(ASIO_MOVE_CAST(io_op)(*this));
+ }
+
+ // Yield control until asynchronous operation completes. Control
+ // resumes at the "default:" label below.
+ return;
+
+ case engine::want_output_and_retry:
+ case engine::want_output:
+
+ // The engine wants some data to be written to the output. However, we
+ // cannot allow more than one write operation at a time on the
+ // underlying transport. The pending_write_ timer's expiry is set to
+ // pos_infin if a write is in progress, and neg_infin otherwise.
+ if (core_.expiry(core_.pending_write_) == core_.neg_infin())
+ {
+ // Prevent other write operations from being started.
+ core_.pending_write_.expires_at(core_.pos_infin());
+
+ // Start writing all the data to the underlying transport.
+ asio::async_write(next_layer_,
+ core_.engine_.get_output(core_.output_buffer_),
+ ASIO_MOVE_CAST(io_op)(*this));
+ }
+ else
+ {
+ // Wait until the current write operation completes.
+ core_.pending_write_.async_wait(ASIO_MOVE_CAST(io_op)(*this));
+ }
+
+ // Yield control until asynchronous operation completes. Control
+ // resumes at the "default:" label below.
+ return;
+
+ default:
+
+ // The SSL operation is done and we can invoke the handler, but we
+ // have to keep in mind that this function might be being called from
+ // the async operation's initiating function. In this case we're not
+ // allowed to call the handler directly. Instead, issue a zero-sized
+ // read so the handler runs "as-if" posted using io_context::post().
+ if (start)
+ {
+ next_layer_.async_read_some(
+ asio::buffer(core_.input_buffer_, 0),
+ ASIO_MOVE_CAST(io_op)(*this));
+
+ // Yield control until asynchronous operation completes. Control
+ // resumes at the "default:" label below.
+ return;
+ }
+ else
+ {
+ // Continue on to run handler directly.
+ break;
+ }
+ }
+
+ default:
+ if (bytes_transferred == ~std::size_t(0))
+ bytes_transferred = 0; // Timer cancellation, no data transferred.
+ else if (!ec_)
+ ec_ = ec;
+
+ switch (want_)
+ {
+ case engine::want_input_and_retry:
+
+ // Add received data to the engine's input.
+ core_.input_ = asio::buffer(
+ core_.input_buffer_, bytes_transferred);
+ core_.input_ = core_.engine_.put_input(core_.input_);
+
+ // Release any waiting read operations.
+ core_.pending_read_.expires_at(core_.neg_infin());
+
+ // Try the operation again.
+ continue;
+
+ case engine::want_output_and_retry:
+
+ // Release any waiting write operations.
+ core_.pending_write_.expires_at(core_.neg_infin());
+
+ // Try the operation again.
+ continue;
+
+ case engine::want_output:
+
+ // Release any waiting write operations.
+ core_.pending_write_.expires_at(core_.neg_infin());
+
+ // Fall through to call handler.
+
+ default:
+
+ // Pass the result to the handler.
+ op_.call_handler(handler_,
+ core_.engine_.map_error_code(ec_),
+ ec_ ? 0 : bytes_transferred_);
+
+ // Our work here is done.
+ return;
+ }
+ } while (!ec_);
+
+ // Operation failed. Pass the result to the handler.
+ op_.call_handler(handler_, core_.engine_.map_error_code(ec_), 0);
+ }
+ }
+
+//private:
+ Stream& next_layer_;
+ stream_core& core_;
+ Operation op_;
+ int start_;
+ engine::want want_;
+ asio::error_code ec_;
+ std::size_t bytes_transferred_;
+ Handler handler_;
+};
+
+template <typename Stream, typename Operation, typename Handler>
+inline void* asio_handler_allocate(std::size_t size,
+ io_op<Stream, Operation, Handler>* this_handler)
+{
+ return asio_handler_alloc_helpers::allocate(
+ size, this_handler->handler_);
+}
+
+template <typename Stream, typename Operation, typename Handler>
+inline void asio_handler_deallocate(void* pointer, std::size_t size,
+ io_op<Stream, Operation, Handler>* this_handler)
+{
+ asio_handler_alloc_helpers::deallocate(
+ pointer, size, this_handler->handler_);
+}
+
+template <typename Stream, typename Operation, typename Handler>
+inline bool asio_handler_is_continuation(
+ io_op<Stream, Operation, Handler>* this_handler)
+{
+ return this_handler->start_ == 0 ? true
+ : asio_handler_cont_helpers::is_continuation(this_handler->handler_);
+}
+
+template <typename Function, typename Stream,
+ typename Operation, typename Handler>
+inline void asio_handler_invoke(Function& function,
+ io_op<Stream, Operation, Handler>* this_handler)
+{
+ asio_handler_invoke_helpers::invoke(
+ function, this_handler->handler_);
+}
+
+template <typename Function, typename Stream,
+ typename Operation, typename Handler>
+inline void asio_handler_invoke(const Function& function,
+ io_op<Stream, Operation, Handler>* this_handler)
+{
+ asio_handler_invoke_helpers::invoke(
+ function, this_handler->handler_);
+}
+
+template <typename Stream, typename Operation, typename Handler>
+inline void async_io(Stream& next_layer, stream_core& core,
+ const Operation& op, Handler& handler)
+{
+ io_op<Stream, Operation, Handler>(
+ next_layer, core, op, handler)(
+ asio::error_code(), 0, 1);
+}
+
+} // namespace detail
+} // namespace ssl
+
+template <typename Stream, typename Operation,
+ typename Handler, typename Allocator>
+struct associated_allocator<
+ ssl::detail::io_op<Stream, Operation, Handler>, Allocator>
+{
+ typedef typename associated_allocator<Handler, Allocator>::type type;
+
+ static type get(const ssl::detail::io_op<Stream, Operation, Handler>& h,
+ const Allocator& a = Allocator()) ASIO_NOEXCEPT
+ {
+ return associated_allocator<Handler, Allocator>::get(h.handler_, a);
+ }
+};
+
+template <typename Stream, typename Operation,
+ typename Handler, typename Executor>
+struct associated_executor<
+ ssl::detail::io_op<Stream, Operation, Handler>, Executor>
+{
+ typedef typename associated_executor<Handler, Executor>::type type;
+
+ static type get(const ssl::detail::io_op<Stream, Operation, Handler>& h,
+ const Executor& ex = Executor()) ASIO_NOEXCEPT
+ {
+ return associated_executor<Handler, Executor>::get(h.handler_, ex);
+ }
+};
+
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_SSL_DETAIL_IO_HPP
diff --git a/lib/asio/ssl/detail/openssl_init.hpp b/lib/asio/ssl/detail/openssl_init.hpp
new file mode 100644
index 0000000..c3e4727
--- /dev/null
+++ b/lib/asio/ssl/detail/openssl_init.hpp
@@ -0,0 +1,101 @@
+//
+// ssl/detail/openssl_init.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_SSL_DETAIL_OPENSSL_INIT_HPP
+#define ASIO_SSL_DETAIL_OPENSSL_INIT_HPP
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1200)
+# pragma once
+#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
+
+#include "asio/detail/config.hpp"
+#include <cstring>
+#include "asio/detail/memory.hpp"
+#include "asio/detail/noncopyable.hpp"
+#include "asio/ssl/detail/openssl_types.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace ssl {
+namespace detail {
+
+class openssl_init_base
+ : private noncopyable
+{
+protected:
+ // Class that performs the actual initialisation.
+ class do_init;
+
+ // Helper function to manage a do_init singleton. The static instance of the
+ // openssl_init object ensures that this function is always called before
+ // main, and therefore before any other threads can get started. The do_init
+ // instance must be static in this function to ensure that it gets
+ // initialised before any other global objects try to use it.
+ ASIO_DECL static asio::detail::shared_ptr<do_init> instance();
+
+#if !defined(SSL_OP_NO_COMPRESSION) \
+ && (OPENSSL_VERSION_NUMBER >= 0x00908000L)
+ // Get an empty stack of compression methods, to be used when disabling
+ // compression.
+ ASIO_DECL static STACK_OF(SSL_COMP)* get_null_compression_methods();
+#endif // !defined(SSL_OP_NO_COMPRESSION)
+ // && (OPENSSL_VERSION_NUMBER >= 0x00908000L)
+};
+
+template <bool Do_Init = true>
+class openssl_init : private openssl_init_base
+{
+public:
+ // Constructor.
+ openssl_init()
+ : ref_(instance())
+ {
+ using namespace std; // For memmove.
+
+ // Ensure openssl_init::instance_ is linked in.
+ openssl_init* tmp = &instance_;
+ memmove(&tmp, &tmp, sizeof(openssl_init*));
+ }
+
+ // Destructor.
+ ~openssl_init()
+ {
+ }
+
+#if !defined(SSL_OP_NO_COMPRESSION) \
+ && (OPENSSL_VERSION_NUMBER >= 0x00908000L)
+ using openssl_init_base::get_null_compression_methods;
+#endif // !defined(SSL_OP_NO_COMPRESSION)
+ // && (OPENSSL_VERSION_NUMBER >= 0x00908000L)
+
+private:
+ // Instance to force initialisation of openssl at global scope.
+ static openssl_init instance_;
+
+ // Reference to singleton do_init object to ensure that openssl does not get
+ // cleaned up until the last user has finished with it.
+ asio::detail::shared_ptr<do_init> ref_;
+};
+
+template <bool Do_Init>
+openssl_init<Do_Init> openssl_init<Do_Init>::instance_;
+
+} // namespace detail
+} // namespace ssl
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#if defined(ASIO_HEADER_ONLY)
+# include "asio/ssl/detail/impl/openssl_init.ipp"
+#endif // defined(ASIO_HEADER_ONLY)
+
+#endif // ASIO_SSL_DETAIL_OPENSSL_INIT_HPP
diff --git a/lib/asio/ssl/detail/openssl_types.hpp b/lib/asio/ssl/detail/openssl_types.hpp
new file mode 100644
index 0000000..a044af3
--- /dev/null
+++ b/lib/asio/ssl/detail/openssl_types.hpp
@@ -0,0 +1,30 @@
+//
+// ssl/detail/openssl_types.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_SSL_DETAIL_OPENSSL_TYPES_HPP
+#define ASIO_SSL_DETAIL_OPENSSL_TYPES_HPP
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1200)
+# pragma once
+#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
+
+#include "asio/detail/config.hpp"
+#include "asio/detail/socket_types.hpp"
+#include <openssl/conf.h>
+#include <openssl/ssl.h>
+#if !defined(OPENSSL_NO_ENGINE)
+# include <openssl/engine.h>
+#endif // !defined(OPENSSL_NO_ENGINE)
+#include <openssl/dh.h>
+#include <openssl/err.h>
+#include <openssl/rsa.h>
+#include <openssl/x509v3.h>
+
+#endif // ASIO_SSL_DETAIL_OPENSSL_TYPES_HPP
diff --git a/lib/asio/ssl/detail/password_callback.hpp b/lib/asio/ssl/detail/password_callback.hpp
new file mode 100644
index 0000000..9b1dbee
--- /dev/null
+++ b/lib/asio/ssl/detail/password_callback.hpp
@@ -0,0 +1,66 @@
+//
+// ssl/detail/password_callback.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_SSL_DETAIL_PASSWORD_CALLBACK_HPP
+#define ASIO_SSL_DETAIL_PASSWORD_CALLBACK_HPP
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1200)
+# pragma once
+#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
+
+#include "asio/detail/config.hpp"
+
+#include <cstddef>
+#include <string>
+#include "asio/ssl/context_base.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace ssl {
+namespace detail {
+
+class password_callback_base
+{
+public:
+ virtual ~password_callback_base()
+ {
+ }
+
+ virtual std::string call(std::size_t size,
+ context_base::password_purpose purpose) = 0;
+};
+
+template <typename PasswordCallback>
+class password_callback : public password_callback_base
+{
+public:
+ explicit password_callback(PasswordCallback callback)
+ : callback_(callback)
+ {
+ }
+
+ virtual std::string call(std::size_t size,
+ context_base::password_purpose purpose)
+ {
+ return callback_(size, purpose);
+ }
+
+private:
+ PasswordCallback callback_;
+};
+
+} // namespace detail
+} // namespace ssl
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_SSL_DETAIL_PASSWORD_CALLBACK_HPP
diff --git a/lib/asio/ssl/detail/read_op.hpp b/lib/asio/ssl/detail/read_op.hpp
new file mode 100644
index 0000000..b0d6de2
--- /dev/null
+++ b/lib/asio/ssl/detail/read_op.hpp
@@ -0,0 +1,67 @@
+//
+// ssl/detail/read_op.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_SSL_DETAIL_READ_OP_HPP
+#define ASIO_SSL_DETAIL_READ_OP_HPP
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1200)
+# pragma once
+#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
+
+#include "asio/detail/config.hpp"
+
+#include "asio/detail/buffer_sequence_adapter.hpp"
+#include "asio/ssl/detail/engine.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace ssl {
+namespace detail {
+
+template <typename MutableBufferSequence>
+class read_op
+{
+public:
+ read_op(const MutableBufferSequence& buffers)
+ : buffers_(buffers)
+ {
+ }
+
+ engine::want operator()(engine& eng,
+ asio::error_code& ec,
+ std::size_t& bytes_transferred) const
+ {
+ asio::mutable_buffer buffer =
+ asio::detail::buffer_sequence_adapter<asio::mutable_buffer,
+ MutableBufferSequence>::first(buffers_);
+
+ return eng.read(buffer, ec, bytes_transferred);
+ }
+
+ template <typename Handler>
+ void call_handler(Handler& handler,
+ const asio::error_code& ec,
+ const std::size_t& bytes_transferred) const
+ {
+ handler(ec, bytes_transferred);
+ }
+
+private:
+ MutableBufferSequence buffers_;
+};
+
+} // namespace detail
+} // namespace ssl
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_SSL_DETAIL_READ_OP_HPP
diff --git a/lib/asio/ssl/detail/shutdown_op.hpp b/lib/asio/ssl/detail/shutdown_op.hpp
new file mode 100644
index 0000000..d20b430
--- /dev/null
+++ b/lib/asio/ssl/detail/shutdown_op.hpp
@@ -0,0 +1,54 @@
+//
+// ssl/detail/shutdown_op.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_SSL_DETAIL_SHUTDOWN_OP_HPP
+#define ASIO_SSL_DETAIL_SHUTDOWN_OP_HPP
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1200)
+# pragma once
+#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
+
+#include "asio/detail/config.hpp"
+
+#include "asio/ssl/detail/engine.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace ssl {
+namespace detail {
+
+class shutdown_op
+{
+public:
+ engine::want operator()(engine& eng,
+ asio::error_code& ec,
+ std::size_t& bytes_transferred) const
+ {
+ bytes_transferred = 0;
+ return eng.shutdown(ec);
+ }
+
+ template <typename Handler>
+ void call_handler(Handler& handler,
+ const asio::error_code& ec,
+ const std::size_t&) const
+ {
+ handler(ec);
+ }
+};
+
+} // namespace detail
+} // namespace ssl
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_SSL_DETAIL_SHUTDOWN_OP_HPP
diff --git a/lib/asio/ssl/detail/stream_core.hpp b/lib/asio/ssl/detail/stream_core.hpp
new file mode 100644
index 0000000..13fde74
--- /dev/null
+++ b/lib/asio/ssl/detail/stream_core.hpp
@@ -0,0 +1,134 @@
+//
+// ssl/detail/stream_core.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_SSL_DETAIL_STREAM_CORE_HPP
+#define ASIO_SSL_DETAIL_STREAM_CORE_HPP
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1200)
+# pragma once
+#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
+
+#include "asio/detail/config.hpp"
+
+#if defined(ASIO_HAS_BOOST_DATE_TIME)
+# include "asio/deadline_timer.hpp"
+#else // defined(ASIO_HAS_BOOST_DATE_TIME)
+# include "asio/steady_timer.hpp"
+#endif // defined(ASIO_HAS_BOOST_DATE_TIME)
+#include "asio/ssl/detail/engine.hpp"
+#include "asio/buffer.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace ssl {
+namespace detail {
+
+struct stream_core
+{
+ // According to the OpenSSL documentation, this is the buffer size that is
+ // sufficient to hold the largest possible TLS record.
+ enum { max_tls_record_size = 17 * 1024 };
+
+ stream_core(SSL_CTX* context, asio::io_context& io_context)
+ : engine_(context),
+ pending_read_(io_context),
+ pending_write_(io_context),
+ output_buffer_space_(max_tls_record_size),
+ output_buffer_(asio::buffer(output_buffer_space_)),
+ input_buffer_space_(max_tls_record_size),
+ input_buffer_(asio::buffer(input_buffer_space_))
+ {
+ pending_read_.expires_at(neg_infin());
+ pending_write_.expires_at(neg_infin());
+ }
+
+ ~stream_core()
+ {
+ }
+
+ // The SSL engine.
+ engine engine_;
+
+#if defined(ASIO_HAS_BOOST_DATE_TIME)
+ // Timer used for storing queued read operations.
+ asio::deadline_timer pending_read_;
+
+ // Timer used for storing queued write operations.
+ asio::deadline_timer pending_write_;
+
+ // Helper function for obtaining a time value that always fires.
+ static asio::deadline_timer::time_type neg_infin()
+ {
+ return boost::posix_time::neg_infin;
+ }
+
+ // Helper function for obtaining a time value that never fires.
+ static asio::deadline_timer::time_type pos_infin()
+ {
+ return boost::posix_time::pos_infin;
+ }
+
+ // Helper function to get a timer's expiry time.
+ static asio::deadline_timer::time_type expiry(
+ const asio::deadline_timer& timer)
+ {
+ return timer.expires_at();
+ }
+#else // defined(ASIO_HAS_BOOST_DATE_TIME)
+ // Timer used for storing queued read operations.
+ asio::steady_timer pending_read_;
+
+ // Timer used for storing queued write operations.
+ asio::steady_timer pending_write_;
+
+ // Helper function for obtaining a time value that always fires.
+ static asio::steady_timer::time_point neg_infin()
+ {
+ return (asio::steady_timer::time_point::min)();
+ }
+
+ // Helper function for obtaining a time value that never fires.
+ static asio::steady_timer::time_point pos_infin()
+ {
+ return (asio::steady_timer::time_point::max)();
+ }
+
+ // Helper function to get a timer's expiry time.
+ static asio::steady_timer::time_point expiry(
+ const asio::steady_timer& timer)
+ {
+ return timer.expiry();
+ }
+#endif // defined(ASIO_HAS_BOOST_DATE_TIME)
+
+ // Buffer space used to prepare output intended for the transport.
+ std::vector<unsigned char> output_buffer_space_;
+
+ // A buffer that may be used to prepare output intended for the transport.
+ const asio::mutable_buffer output_buffer_;
+
+ // Buffer space used to read input intended for the engine.
+ std::vector<unsigned char> input_buffer_space_;
+
+ // A buffer that may be used to read input intended for the engine.
+ const asio::mutable_buffer input_buffer_;
+
+ // The buffer pointing to the engine's unconsumed input.
+ asio::const_buffer input_;
+};
+
+} // namespace detail
+} // namespace ssl
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_SSL_DETAIL_STREAM_CORE_HPP
diff --git a/lib/asio/ssl/detail/verify_callback.hpp b/lib/asio/ssl/detail/verify_callback.hpp
new file mode 100644
index 0000000..1c56a27
--- /dev/null
+++ b/lib/asio/ssl/detail/verify_callback.hpp
@@ -0,0 +1,62 @@
+//
+// ssl/detail/verify_callback.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_SSL_DETAIL_VERIFY_CALLBACK_HPP
+#define ASIO_SSL_DETAIL_VERIFY_CALLBACK_HPP
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1200)
+# pragma once
+#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
+
+#include "asio/detail/config.hpp"
+
+#include "asio/ssl/verify_context.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace ssl {
+namespace detail {
+
+class verify_callback_base
+{
+public:
+ virtual ~verify_callback_base()
+ {
+ }
+
+ virtual bool call(bool preverified, verify_context& ctx) = 0;
+};
+
+template <typename VerifyCallback>
+class verify_callback : public verify_callback_base
+{
+public:
+ explicit verify_callback(VerifyCallback callback)
+ : callback_(callback)
+ {
+ }
+
+ virtual bool call(bool preverified, verify_context& ctx)
+ {
+ return callback_(preverified, ctx);
+ }
+
+private:
+ VerifyCallback callback_;
+};
+
+} // namespace detail
+} // namespace ssl
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_SSL_DETAIL_VERIFY_CALLBACK_HPP
diff --git a/lib/asio/ssl/detail/write_op.hpp b/lib/asio/ssl/detail/write_op.hpp
new file mode 100644
index 0000000..1d341c0
--- /dev/null
+++ b/lib/asio/ssl/detail/write_op.hpp
@@ -0,0 +1,67 @@
+//
+// ssl/detail/write_op.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_SSL_DETAIL_WRITE_OP_HPP
+#define ASIO_SSL_DETAIL_WRITE_OP_HPP
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1200)
+# pragma once
+#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
+
+#include "asio/detail/config.hpp"
+
+#include "asio/detail/buffer_sequence_adapter.hpp"
+#include "asio/ssl/detail/engine.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace ssl {
+namespace detail {
+
+template <typename ConstBufferSequence>
+class write_op
+{
+public:
+ write_op(const ConstBufferSequence& buffers)
+ : buffers_(buffers)
+ {
+ }
+
+ engine::want operator()(engine& eng,
+ asio::error_code& ec,
+ std::size_t& bytes_transferred) const
+ {
+ asio::const_buffer buffer =
+ asio::detail::buffer_sequence_adapter<asio::const_buffer,
+ ConstBufferSequence>::first(buffers_);
+
+ return eng.write(buffer, ec, bytes_transferred);
+ }
+
+ template <typename Handler>
+ void call_handler(Handler& handler,
+ const asio::error_code& ec,
+ const std::size_t& bytes_transferred) const
+ {
+ handler(ec, bytes_transferred);
+ }
+
+private:
+ ConstBufferSequence buffers_;
+};
+
+} // namespace detail
+} // namespace ssl
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_SSL_DETAIL_WRITE_OP_HPP
--
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