129 lines
2.8 KiB
C++
129 lines
2.8 KiB
C++
/*
|
|
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#include <AK/IPv4Address.h>
|
|
#include <AK/Types.h>
|
|
#include <LibCore/Notifier.h>
|
|
#include <LibCore/TCPServer.h>
|
|
#include <LibCore/TCPSocket.h>
|
|
#include <fcntl.h>
|
|
#include <stdio.h>
|
|
#include <sys/socket.h>
|
|
#include <unistd.h>
|
|
|
|
#ifndef SOCK_NONBLOCK
|
|
# include <sys/ioctl.h>
|
|
#endif
|
|
namespace Core {
|
|
|
|
TCPServer::TCPServer(Object* parent)
|
|
: Object(parent)
|
|
{
|
|
#ifdef SOCK_NONBLOCK
|
|
m_fd = socket(AF_INET, SOCK_STREAM | SOCK_NONBLOCK | SOCK_CLOEXEC, 0);
|
|
#else
|
|
m_fd = socket(AF_INET, SOCK_STREAM, 0);
|
|
int option = 1;
|
|
ioctl(m_fd, FIONBIO, &option);
|
|
fcntl(m_fd, F_SETFD, FD_CLOEXEC);
|
|
#endif
|
|
VERIFY(m_fd >= 0);
|
|
}
|
|
|
|
TCPServer::~TCPServer()
|
|
{
|
|
::close(m_fd);
|
|
}
|
|
|
|
bool TCPServer::listen(const IPv4Address& address, u16 port)
|
|
{
|
|
if (m_listening)
|
|
return false;
|
|
|
|
auto socket_address = SocketAddress(address, port);
|
|
auto in = socket_address.to_sockaddr_in();
|
|
if (::bind(m_fd, (const sockaddr*)&in, sizeof(in)) < 0) {
|
|
perror("TCPServer::listen: bind");
|
|
return false;
|
|
}
|
|
|
|
if (::listen(m_fd, 5) < 0) {
|
|
perror("TCPServer::listen: listen");
|
|
return false;
|
|
}
|
|
m_listening = true;
|
|
|
|
m_notifier = Notifier::construct(m_fd, Notifier::Event::Read, this);
|
|
m_notifier->on_ready_to_read = [this] {
|
|
if (on_ready_to_accept)
|
|
on_ready_to_accept();
|
|
};
|
|
return true;
|
|
}
|
|
|
|
void TCPServer::set_blocking(bool blocking)
|
|
{
|
|
int flags = fcntl(m_fd, F_GETFL, 0);
|
|
VERIFY(flags >= 0);
|
|
if (blocking)
|
|
flags = fcntl(m_fd, F_SETFL, flags & ~O_NONBLOCK);
|
|
else
|
|
flags = fcntl(m_fd, F_SETFL, flags | O_NONBLOCK);
|
|
VERIFY(flags == 0);
|
|
}
|
|
|
|
RefPtr<TCPSocket> TCPServer::accept()
|
|
{
|
|
VERIFY(m_listening);
|
|
sockaddr_in in;
|
|
socklen_t in_size = sizeof(in);
|
|
#ifndef AK_OS_MACOS
|
|
int accepted_fd = ::accept4(m_fd, (sockaddr*)&in, &in_size, SOCK_NONBLOCK | SOCK_CLOEXEC);
|
|
#else
|
|
int accepted_fd = ::accept(m_fd, (sockaddr*)&in, &in_size);
|
|
#endif
|
|
|
|
if (accepted_fd < 0) {
|
|
perror("accept");
|
|
return nullptr;
|
|
}
|
|
|
|
#ifdef AK_OS_MACOS
|
|
int option = 1;
|
|
(void)ioctl(m_fd, FIONBIO, &option);
|
|
(void)fcntl(accepted_fd, F_SETFD, FD_CLOEXEC);
|
|
#endif
|
|
|
|
return TCPSocket::construct(accepted_fd);
|
|
}
|
|
|
|
Optional<IPv4Address> TCPServer::local_address() const
|
|
{
|
|
if (m_fd == -1)
|
|
return {};
|
|
|
|
sockaddr_in address;
|
|
socklen_t len = sizeof(address);
|
|
if (getsockname(m_fd, (sockaddr*)&address, &len) != 0)
|
|
return {};
|
|
|
|
return IPv4Address(address.sin_addr.s_addr);
|
|
}
|
|
|
|
Optional<u16> TCPServer::local_port() const
|
|
{
|
|
if (m_fd == -1)
|
|
return {};
|
|
|
|
sockaddr_in address;
|
|
socklen_t len = sizeof(address);
|
|
if (getsockname(m_fd, (sockaddr*)&address, &len) != 0)
|
|
return {};
|
|
|
|
return ntohs(address.sin_port);
|
|
}
|
|
|
|
}
|