115 lines
2.9 KiB
C++
115 lines
2.9 KiB
C++
/* Copyright (C) 2002-2005 RealVNC Ltd. All Rights Reserved.
|
|
*
|
|
* This 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 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This software 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 software; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
|
|
* USA.
|
|
*/
|
|
|
|
// -=- Socket.h - abstract base-class for any kind of network stream/socket
|
|
|
|
#ifndef __NETWORK_SOCKET_H__
|
|
#define __NETWORK_SOCKET_H__
|
|
|
|
#include <list>
|
|
|
|
#include <limits.h>
|
|
|
|
namespace rdr {
|
|
class FdInStream;
|
|
class FdOutStream;
|
|
}
|
|
|
|
namespace network {
|
|
|
|
void initSockets();
|
|
|
|
bool isSocketListening(int sock);
|
|
|
|
class Socket {
|
|
public:
|
|
Socket(int fd);
|
|
virtual ~Socket();
|
|
|
|
rdr::FdInStream &inStream() {return *instream;}
|
|
rdr::FdOutStream &outStream() {return *outstream;}
|
|
int getFd();
|
|
|
|
void shutdown();
|
|
bool isShutdown() const;
|
|
|
|
void cork(bool enable);
|
|
|
|
// information about the remote end of the socket
|
|
virtual const char* getPeerAddress() = 0; // a string e.g. "192.168.0.1"
|
|
virtual const char* getPeerEndpoint() = 0; // <address>::<port>
|
|
|
|
// Was there a "?" in the ConnectionFilter used to accept this Socket?
|
|
void setRequiresQuery();
|
|
bool requiresQuery() const;
|
|
|
|
protected:
|
|
Socket();
|
|
|
|
void setFd(int fd);
|
|
|
|
private:
|
|
rdr::FdInStream* instream;
|
|
rdr::FdOutStream* outstream;
|
|
bool isShutdown_;
|
|
bool queryConnection;
|
|
};
|
|
|
|
class ConnectionFilter {
|
|
public:
|
|
virtual bool verifyConnection(Socket* s) = 0;
|
|
virtual ~ConnectionFilter() {}
|
|
};
|
|
|
|
class SocketListener {
|
|
public:
|
|
SocketListener(int fd);
|
|
virtual ~SocketListener();
|
|
|
|
// shutdown() stops the socket from accepting further connections
|
|
void shutdown();
|
|
|
|
// accept() returns a new Socket object if there is a connection
|
|
// attempt in progress AND if the connection passes the filter
|
|
// if one is installed. Otherwise, returns 0.
|
|
Socket* accept();
|
|
|
|
virtual int getMyPort() = 0;
|
|
|
|
// setFilter() applies the specified filter to all new connections
|
|
void setFilter(ConnectionFilter* f) {filter = f;}
|
|
int getFd() {return fd;}
|
|
|
|
protected:
|
|
SocketListener();
|
|
|
|
void listen(int fd);
|
|
|
|
// createSocket() should create a new socket of the correct class
|
|
// for the given file descriptor
|
|
virtual Socket* createSocket(int fd) = 0;
|
|
|
|
protected:
|
|
int fd;
|
|
ConnectionFilter* filter;
|
|
};
|
|
|
|
}
|
|
|
|
#endif // __NETWORK_SOCKET_H__
|