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/*
* Copyright (c) 2010, Psiphon Inc.
* All rights reserved.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "stdafx.h"
#include "locallistener.h"
#include "psiclient.h"
LocalListener::LocalListener(const string& IP, unsigned short port) :
m_listenIP(IP), m_listenPort(port)
{
m_listenSocket = -1;
}
LocalListener::~LocalListener(void)
{
// close listening socket
closesocket(m_listenSocket);
}
void LocalListener::Initialize(void)
{
char sockopt;
m_listenSocket = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP);
m_sin.sin_family = AF_INET;
m_sin.sin_port = htons(m_listenPort);
if (INADDR_NONE == (m_sin.sin_addr.s_addr = inet_addr(m_listenIP.c_str())))
{
my_print(false, _T("inet_addr error: %s"), _tcserror(errno));
throw 0;
}
sockopt = 1;
setsockopt(m_listenSocket, SOL_SOCKET, SO_REUSEADDR, &sockopt, sizeof(sockopt));
/*
// TODO: I don't think this is needed
unsigned long opt = 1;
if (ioctlsocket(m_listenSocket, FIONBIO, &opt) == SOCKET_ERROR)
{
my_print(false, _T("ioctlsocket error: %s"), _tcserror(errno));
throw 0;
}
*/
m_sinlen = sizeof(m_sin);
if (-1 == bind(m_listenSocket, (struct sockaddr *)&m_sin, m_sinlen))
{
my_print(false, _T("bind error: %s"), _tcserror(errno));
throw 0;
}
if (-1 == listen(m_listenSocket, 2))
{
my_print(false, _T("listen error: %s"), _tcserror(errno));
throw 0;
}
const char* x = inet_ntoa(m_sin.sin_addr);
my_print(true,
_T("waiting for TCP connection on %hs:%d..."),
inet_ntoa(m_sin.sin_addr), ntohs(m_sin.sin_port));
}
void LocalListener::Accept(int& forwardSocket)
{
forwardSocket = accept(m_listenSocket, (struct sockaddr *)&m_sin, &m_sinlen);
if (-1 == forwardSocket)
{
my_print(false, _T("accept error: %d"), WSAGetLastError());
throw 0;
}
}
int LocalListener::ListenSocket(void)
{
return m_listenSocket;
}
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