152 lines
4.1 KiB
C++
Executable File
152 lines
4.1 KiB
C++
Executable File
//
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// impl/connect_pipe.ipp
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// ~~~~~~~~~~~~~~~~~~~~~
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//
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// Copyright (c) 2003-2022 Christopher M. Kohlhoff (chris at kohlhoff dot com)
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// Copyright (c) 2021 Klemens D. Morgenstern
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// (klemens dot morgenstern at gmx dot net)
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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#ifndef BOOST_ASIO_IMPL_CONNECT_PIPE_IPP
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#define BOOST_ASIO_IMPL_CONNECT_PIPE_IPP
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#if defined(_MSC_VER) && (_MSC_VER >= 1200)
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# pragma once
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#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
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#include <boost/asio/detail/config.hpp>
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#if defined(BOOST_ASIO_HAS_PIPE)
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#include <boost/asio/connect_pipe.hpp>
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#if defined(BOOST_ASIO_HAS_IOCP)
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# include <cstdio>
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# if _WIN32_WINNT >= 0x601
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# include <bcrypt.h>
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# if !defined(BOOST_ASIO_NO_DEFAULT_LINKED_LIBS)
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# if defined(_MSC_VER)
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# pragma comment(lib, "bcrypt.lib")
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# endif // defined(_MSC_VER)
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# endif // !defined(BOOST_ASIO_NO_DEFAULT_LINKED_LIBS)
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# endif // _WIN32_WINNT >= 0x601
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#else // defined(BOOST_ASIO_HAS_IOCP)
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# include <boost/asio/detail/descriptor_ops.hpp>
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#endif // defined(BOOST_ASIO_HAS_IOCP)
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#include <boost/asio/detail/push_options.hpp>
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namespace boost {
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namespace asio {
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namespace detail {
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void create_pipe(native_pipe_handle p[2], boost::system::error_code& ec)
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{
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#if defined(BOOST_ASIO_HAS_IOCP)
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using namespace std; // For sprintf and memcmp.
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static long counter1 = 0;
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static long counter2 = 0;
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long n1 = ::InterlockedIncrement(&counter1);
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long n2 = (static_cast<unsigned long>(n1) % 0x10000000) == 0
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? ::InterlockedIncrement(&counter2)
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: ::InterlockedExchangeAdd(&counter2, 0);
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wchar_t pipe_name[128];
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#if defined(BOOST_ASIO_HAS_SECURE_RTL)
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swprintf_s(
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#else // defined(BOOST_ASIO_HAS_SECURE_RTL)
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_snwprintf(
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#endif // defined(BOOST_ASIO_HAS_SECURE_RTL)
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pipe_name, 128,
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L"\\\\.\\pipe\\asio-A0812896-741A-484D-AF23-BE51BF620E22-%u-%ld-%ld",
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static_cast<unsigned int>(::GetCurrentProcessId()), n1, n2);
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p[0] = ::CreateNamedPipeW(pipe_name,
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PIPE_ACCESS_INBOUND | FILE_FLAG_OVERLAPPED,
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0, 1, 8192, 8192, 0, 0);
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if (p[0] == INVALID_HANDLE_VALUE)
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{
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DWORD last_error = ::GetLastError();
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ec.assign(last_error, boost::asio::error::get_system_category());
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return;
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}
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p[1] = ::CreateFileW(pipe_name, GENERIC_WRITE, 0,
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0, OPEN_EXISTING, FILE_FLAG_OVERLAPPED, 0);
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if (p[1] == INVALID_HANDLE_VALUE)
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{
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DWORD last_error = ::GetLastError();
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::CloseHandle(p[0]);
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ec.assign(last_error, boost::asio::error::get_system_category());
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return;
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}
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# if _WIN32_WINNT >= 0x601
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unsigned char nonce[16];
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if (::BCryptGenRandom(0, nonce, sizeof(nonce),
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BCRYPT_USE_SYSTEM_PREFERRED_RNG) != 0)
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{
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ec = boost::asio::error::connection_aborted;
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::CloseHandle(p[0]);
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::CloseHandle(p[1]);
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return;
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}
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DWORD bytes_written = 0;
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BOOL ok = ::WriteFile(p[1], nonce, sizeof(nonce), &bytes_written, 0);
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if (!ok || bytes_written != sizeof(nonce))
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{
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ec = boost::asio::error::connection_aborted;
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::CloseHandle(p[0]);
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::CloseHandle(p[1]);
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return;
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}
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unsigned char nonce_check[sizeof(nonce)];
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DWORD bytes_read = 0;
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ok = ::ReadFile(p[0], nonce_check, sizeof(nonce), &bytes_read, 0);
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if (!ok || bytes_read != sizeof(nonce)
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|| memcmp(nonce, nonce_check, sizeof(nonce)) != 0)
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{
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ec = boost::asio::error::connection_aborted;
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::CloseHandle(p[0]);
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::CloseHandle(p[1]);
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return;
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}
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#endif // _WIN32_WINNT >= 0x601
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ec.assign(0, ec.category());
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#else // defined(BOOST_ASIO_HAS_IOCP)
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int result = ::pipe(p);
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detail::descriptor_ops::get_last_error(ec, result != 0);
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#endif // defined(BOOST_ASIO_HAS_IOCP)
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}
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void close_pipe(native_pipe_handle p)
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{
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#if defined(BOOST_ASIO_HAS_IOCP)
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::CloseHandle(p);
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#else // defined(BOOST_ASIO_HAS_IOCP)
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boost::system::error_code ignored_ec;
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detail::descriptor_ops::state_type state = 0;
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detail::descriptor_ops::close(p, state, ignored_ec);
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#endif // defined(BOOST_ASIO_HAS_IOCP)
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}
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} // namespace detail
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} // namespace asio
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} // namespace boost
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#include <boost/asio/detail/pop_options.hpp>
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#endif // defined(BOOST_ASIO_HAS_PIPE)
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#endif // BOOST_ASIO_IMPL_CONNECT_PIPE_IPP
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