move to asio socket libary for sync

bugs / todos:
* new connections don't sync
* anyrtpproxy broken
* anytun-controlld doesn't send data

1 files changed, 0 insertions, 844 deletions

diff --git a/src/Sockets/UdpSocket.cpp b/src/Sockets/UdpSocket.cpp
deleted file mode 100644
index 283c5b4..0000000
--- a/src/Sockets/UdpSocket.cpp
+++ /dev/null
@@ -1,844 +0,0 @@
-/** \file UdpSocket.cpp
- **	\date  2004-02-13
- **	\author grymse@alhem.net
-**/
-/*
-Copyright (C) 2004-2007  Anders Hedstrom
-
-This library is made available under the terms of the GNU GPL.
-
-If you would like to use this library in a closed-source application,
-a separate license agreement is available. For information about
-the closed-source license agreement for the C++ sockets library,
-please visit http://www.alhem.net/Sockets/license.html and/or
-email license@alhem.net.
-
-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 2
-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, write to the Free Software
-Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
-*/
-#ifdef _WIN32
-#ifdef _MSC_VER
-#pragma warning(disable:4786)
-#endif
-#include <stdlib.h>
-#else
-#include <errno.h>
-#endif
-
-#include <cstring>
-#include "ISocketHandler.h"
-#include "UdpSocket.h"
-#include "Utility.h"
-#include "Ipv4Address.h"
-#include "Ipv6Address.h"
-#ifdef ENABLE_EXCEPTIONS
-#include "Exception.h"
-#endif
-// include this to see strange sights
-//#include <linux/in6.h>
-
-
-#ifdef SOCKETS_NAMESPACE
-namespace SOCKETS_NAMESPACE {
-#endif
-
-
-UdpSocket::UdpSocket(ISocketHandler& h, int ibufsz, bool ipv6, int retries) : Socket(h)
-, m_ibuf(new char[ibufsz])
-, m_ibufsz(ibufsz)
-, m_bind_ok(false)
-, m_port(0)
-, m_last_size_written(-1)
-, m_retries(retries)
-, m_b_read_ts(false)
-{
-#ifdef ENABLE_IPV6
-#ifdef IPPROTO_IPV6
-	SetIpv6(ipv6);
-#endif
-#endif
-}
-
-
-UdpSocket::~UdpSocket()
-{
-	Close();
-	delete[] m_ibuf;
-}
-
-
-int UdpSocket::Bind(port_t &port, int range)
-{
-#ifdef ENABLE_IPV6
-#ifdef IPPROTO_IPV6
-	if (IsIpv6())
-	{
-		Ipv6Address ad(port);
-		return Bind(ad, range);
-	}
-#endif
-#endif
-	Ipv4Address ad(port);
-	return Bind(ad, range);
-}
-
-
-int UdpSocket::Bind(const std::string& intf, port_t &port, int range)
-{
-#ifdef ENABLE_IPV6
-#ifdef IPPROTO_IPV6
-	if (IsIpv6())
-	{
-		Ipv6Address ad(intf, port);
-		if (ad.IsValid())
-		{
-			return Bind(ad, range);
-		}
-		SetCloseAndDelete();
-		return -1;
-	}
-#endif
-#endif
-	Ipv4Address ad(intf, port);
-	if (ad.IsValid())
-	{
-		return Bind(ad, range);
-	}
-	SetCloseAndDelete();
-	return -1;
-}
-
-
-int UdpSocket::Bind(ipaddr_t a, port_t &port, int range)
-{
-	Ipv4Address ad(a, port);
-	return Bind(ad, range);
-}
-
-
-#ifdef ENABLE_IPV6
-#ifdef IPPROTO_IPV6
-int UdpSocket::Bind(in6_addr a, port_t &port, int range)
-{
-	Ipv6Address ad(a, port);
-	return Bind(ad, range);
-}
-#endif
-#endif
-
-
-int UdpSocket::Bind(SocketAddress& ad, int range)
-{
-	if (GetSocket() == INVALID_SOCKET)
-	{
-		Attach(CreateSocket(ad.GetFamily(), SOCK_DGRAM, "udp"));
-	}
-	if (GetSocket() != INVALID_SOCKET)
-	{
-		SetNonblocking(true);
-		int n = bind(GetSocket(), ad, ad);
-		int tries = range;
-		while (n == -1 && tries--)
-		{
-			ad.SetPort(ad.GetPort() + 1);
-			n = bind(GetSocket(), ad, ad);
-		}
-		if (n == -1)
-		{
-			Handler().LogError(this, "bind", Errno, StrError(Errno), LOG_LEVEL_FATAL);
-			SetCloseAndDelete();
-#ifdef ENABLE_EXCEPTIONS
-			throw Exception("bind() failed for UdpSocket, port:range: " + Utility::l2string(ad.GetPort()) + ":" + Utility::l2string(range));
-#endif
-			return -1;
-		}
-		m_bind_ok = true;
-		m_port = ad.GetPort();
-		return 0;
-	}
-	return -1;
-}
-
-
-/** if you wish to use Send, first Open a connection */
-bool UdpSocket::Open(ipaddr_t l, port_t port)
-{
-	Ipv4Address ad(l, port);
-	return Open(ad);
-}
-
-
-bool UdpSocket::Open(const std::string& host, port_t port)
-{
-#ifdef ENABLE_IPV6
-#ifdef IPPROTO_IPV6
-	if (IsIpv6())
-	{
-		Ipv6Address ad(host, port);
-		if (ad.IsValid())
-		{
-			return Open(ad);
-		}
-		return false;
-	}
-#endif
-#endif
-	Ipv4Address ad(host, port);
-	if (ad.IsValid())
-	{
-		return Open(ad);
-	}
-	return false;
-}
-
-
-#ifdef ENABLE_IPV6
-#ifdef IPPROTO_IPV6
-bool UdpSocket::Open(struct in6_addr& a, port_t port)
-{
-	Ipv6Address ad(a, port);
-	return Open(ad);
-}
-#endif
-#endif
-
-
-bool UdpSocket::Open(SocketAddress& ad)
-{
-	if (GetSocket() == INVALID_SOCKET)
-	{
-		Attach(CreateSocket(ad.GetFamily(), SOCK_DGRAM, "udp"));
-	}
-	if (GetSocket() != INVALID_SOCKET)
-	{
-		SetNonblocking(true);
-		if (connect(GetSocket(), ad, ad) == -1)
-		{
-			Handler().LogError(this, "connect", Errno, StrError(Errno), LOG_LEVEL_FATAL);
-			SetCloseAndDelete();
-			return false;
-		}
-		SetConnected();
-		return true;
-	}
-	return false;
-}
-
-
-void UdpSocket::CreateConnection()
-{
-#ifdef ENABLE_IPV6
-#ifdef IPPROTO_IPV6
-	if (IsIpv6())
-	{
-		if (GetSocket() == INVALID_SOCKET)
-		{
-			SOCKET s = CreateSocket(AF_INET6, SOCK_DGRAM, "udp");
-			if (s == INVALID_SOCKET)
-			{
-				return;
-			}
-			SetNonblocking(true, s);
-			Attach(s);
-		}
-		return;
-	}
-#endif
-#endif
-	if (GetSocket() == INVALID_SOCKET)
-	{
-		SOCKET s = CreateSocket(AF_INET, SOCK_DGRAM, "udp");
-		if (s == INVALID_SOCKET)
-		{
-			return;
-		}
-		SetNonblocking(true, s);
-		Attach(s);
-	}
-}
-
-
-/** send to specified address */
-void UdpSocket::SendToBuf(const std::string& h, port_t p, const char *data, int len, int flags)
-{
-#ifdef ENABLE_IPV6
-#ifdef IPPROTO_IPV6
-	if (IsIpv6())
-	{
-		Ipv6Address ad(h, p);
-		if (ad.IsValid())
-		{
-			SendToBuf(ad, data, len, flags);
-		}
-		return;
-	}
-#endif
-#endif
-	Ipv4Address ad(h, p);
-	if (ad.IsValid())
-	{
-		SendToBuf(ad, data, len, flags);
-	}
-}
-
-
-/** send to specified address */
-void UdpSocket::SendToBuf(ipaddr_t a, port_t p, const char *data, int len, int flags)
-{
-	Ipv4Address ad(a, p);
-	SendToBuf(ad, data, len, flags);
-}
-
-
-#ifdef ENABLE_IPV6
-#ifdef IPPROTO_IPV6
-void UdpSocket::SendToBuf(in6_addr a, port_t p, const char *data, int len, int flags)
-{
-	Ipv6Address ad(a, p);
-	SendToBuf(ad, data, len, flags);
-}
-#endif
-#endif
-
-
-void UdpSocket::SendToBuf(SocketAddress& ad, const char *data, int len, int flags)
-{
-	if (GetSocket() == INVALID_SOCKET)
-	{
-		Attach(CreateSocket(ad.GetFamily(), SOCK_DGRAM, "udp"));
-	}
-	if (GetSocket() != INVALID_SOCKET)
-	{
-		SetNonblocking(true);
-		if ((m_last_size_written = sendto(GetSocket(), data, len, flags, ad, ad)) == -1)
-		{
-			Handler().LogError(this, "sendto", Errno, StrError(Errno), LOG_LEVEL_ERROR);
-		}
-	}
-}
-
-
-void UdpSocket::SendTo(const std::string& a, port_t p, const std::string& str, int flags)
-{
-	SendToBuf(a, p, str.c_str(), (int)str.size(), flags);
-}
-
-
-void UdpSocket::SendTo(ipaddr_t a, port_t p, const std::string& str, int flags)
-{
-	SendToBuf(a, p, str.c_str(), (int)str.size(), flags);
-}
-
-
-#ifdef ENABLE_IPV6
-#ifdef IPPROTO_IPV6
-void UdpSocket::SendTo(in6_addr a, port_t p, const std::string& str, int flags)
-{
-	SendToBuf(a, p, str.c_str(), (int)str.size(), flags);
-}
-#endif
-#endif
-
-
-void UdpSocket::SendTo(SocketAddress& ad, const std::string& str, int flags)
-{
-	SendToBuf(ad, str.c_str(), (int)str.size(), flags);
-}
-
-
-/** send to connected address */
-void UdpSocket::SendBuf(const char *data, size_t len, int flags)
-{
-	if (!IsConnected())
-	{
-		Handler().LogError(this, "SendBuf", 0, "not connected", LOG_LEVEL_ERROR);
-		return;
-	}
-	if ((m_last_size_written = send(GetSocket(), data, (int)len, flags)) == -1)
-	{
-		Handler().LogError(this, "send", Errno, StrError(Errno), LOG_LEVEL_ERROR);
-	}
-}
-
-
-void UdpSocket::Send(const std::string& str, int flags)
-{
-	SendBuf(str.c_str(), (int)str.size(), flags);
-}
-
-
-#ifndef _WIN32
-int UdpSocket::ReadTS(char *ioBuf, int inBufSize, struct sockaddr *from, socklen_t fromlen, struct timeval *ts)
-{
-	struct msghdr msg;
-	struct iovec vec[1];
-	union {
-		struct cmsghdr cm;
-		char data[CMSG_SPACE(sizeof(struct timeval))];
-	} cmsg_un;
-	struct cmsghdr *cmsg;
-	struct timeval *tv;
-
-	vec[0].iov_base = ioBuf;
-	vec[0].iov_len = inBufSize;
-
-	memset(&msg, 0, sizeof(msg));
-	memset(from, 0, fromlen);
-	memset(ioBuf, 0, inBufSize);
-	memset(&cmsg_un, 0, sizeof(cmsg_un));
-
-	msg.msg_name = (caddr_t)from;
-	msg.msg_namelen = fromlen;
-	msg.msg_iov = vec;
-	msg.msg_iovlen = 1;
-	msg.msg_control = cmsg_un.data;
-	msg.msg_controllen = sizeof(cmsg_un.data);
-	msg.msg_flags = 0;
-
-	// Original version - for reference only
-	//int n = recvfrom(GetSocket(), m_ibuf, m_ibufsz, 0, (struct sockaddr *)&sa, &sa_len);
-
-	int n = recvmsg(GetSocket(), &msg, MSG_DONTWAIT);
-
-	// now ioBuf will contain the data, as if we used recvfrom
-
-	// Now get the time
-	if(n != -1 && msg.msg_controllen >= sizeof(struct cmsghdr) && !(msg.msg_flags & MSG_CTRUNC))
-	{
-		tv = 0;
-		for (cmsg = CMSG_FIRSTHDR(&msg); cmsg != NULL; cmsg = CMSG_NXTHDR(&msg, cmsg))
-		{
-			if (cmsg->cmsg_level == SOL_SOCKET && cmsg->cmsg_type == SCM_TIMESTAMP)
-			{
-				tv = (struct timeval *)CMSG_DATA(cmsg);
-			}
-		}
-		if (tv)
-		{
-			memcpy(ts, tv, sizeof(struct timeval));
-		}
-	}
-	// The address is in network order, but that's OK right now
-	return n;
-}
-#endif
-
-
-void UdpSocket::OnRead()
-{
-#ifdef ENABLE_IPV6
-#ifdef IPPROTO_IPV6
-	if (IsIpv6())
-	{
-		struct sockaddr_in6 sa;
-		socklen_t sa_len = sizeof(sa);
-		if (m_b_read_ts)
-		{
-			struct timeval ts;
-			Utility::GetTime(&ts);
-#ifdef _WIN32
-			int n = recvfrom(GetSocket(), m_ibuf, m_ibufsz, 0, (struct sockaddr *)&sa, &sa_len);
-#else
-			int n = ReadTS(m_ibuf, m_ibufsz, (struct sockaddr *)&sa, sa_len, &ts);
-#endif
-			if (n > 0)
-			{
-				this -> OnRawData(m_ibuf, n, (struct sockaddr *)&sa, sa_len, &ts);
-			}
-			else
-			if (n == -1)
-			{
-#ifdef _WIN32
-				if (Errno != WSAEWOULDBLOCK)
-#else
-				if (Errno != EWOULDBLOCK)
-#endif
-					Handler().LogError(this, "recvfrom", Errno, StrError(Errno), LOG_LEVEL_ERROR);
-			}
-			return;
-		}
-		int n = recvfrom(GetSocket(), m_ibuf, m_ibufsz, 0, (struct sockaddr *)&sa, &sa_len);
-		int q = m_retries; // receive max 10 at one cycle
-		while (n > 0)
-		{
-			if (sa_len != sizeof(sa))
-			{
-				Handler().LogError(this, "recvfrom", 0, "unexpected address struct size", LOG_LEVEL_WARNING);
-			}
-			this -> OnRawData(m_ibuf, n, (struct sockaddr *)&sa, sa_len);
-			if (!q--)
-				break;
-			//
-			n = recvfrom(GetSocket(), m_ibuf, m_ibufsz, 0, (struct sockaddr *)&sa, &sa_len);
-		}
-		if (n == -1)
-		{
-#ifdef _WIN32
-			if (Errno != WSAEWOULDBLOCK)
-#else
-			if (Errno != EWOULDBLOCK)
-#endif
-				Handler().LogError(this, "recvfrom", Errno, StrError(Errno), LOG_LEVEL_ERROR);
-		}
-		return;
-	}
-#endif
-#endif
-	struct sockaddr_in sa;
-	socklen_t sa_len = sizeof(sa);
-	if (m_b_read_ts)
-	{
-		struct timeval ts;
-		Utility::GetTime(&ts);
-#ifdef _WIN32
-		int n = recvfrom(GetSocket(), m_ibuf, m_ibufsz, 0, (struct sockaddr *)&sa, &sa_len);
-#else
-		int n = ReadTS(m_ibuf, m_ibufsz, (struct sockaddr *)&sa, sa_len, &ts);
-#endif
-		if (n > 0)
-		{
-			this -> OnRawData(m_ibuf, n, (struct sockaddr *)&sa, sa_len, &ts);
-		}
-		else
-		if (n == -1)
-		{
-#ifdef _WIN32
-			if (Errno != WSAEWOULDBLOCK)
-#else
-			if (Errno != EWOULDBLOCK)
-#endif
-				Handler().LogError(this, "recvfrom", Errno, StrError(Errno), LOG_LEVEL_ERROR);
-		}
-		return;
-	}
-	int n = recvfrom(GetSocket(), m_ibuf, m_ibufsz, 0, (struct sockaddr *)&sa, &sa_len);
-	int q = m_retries;
-	while (n > 0)
-	{
-		if (sa_len != sizeof(sa))
-		{
-			Handler().LogError(this, "recvfrom", 0, "unexpected address struct size", LOG_LEVEL_WARNING);
-		}
-		this -> OnRawData(m_ibuf, n, (struct sockaddr *)&sa, sa_len);
-		if (!q--)
-			break;
-		//
-		n = recvfrom(GetSocket(), m_ibuf, m_ibufsz, 0, (struct sockaddr *)&sa, &sa_len);
-	}
-	if (n == -1)
-	{
-#ifdef _WIN32
-		if (Errno != WSAEWOULDBLOCK)
-#else
-		if (Errno != EWOULDBLOCK)
-#endif
-			Handler().LogError(this, "recvfrom", Errno, StrError(Errno), LOG_LEVEL_ERROR);
-	}
-}
-
-
-void UdpSocket::SetBroadcast(bool b)
-{
-	int one = 1;
-	int zero = 0;
-
-	if (GetSocket() == INVALID_SOCKET)
-	{
-		CreateConnection();
-	}
-	if (b)
-	{
-		if (setsockopt(GetSocket(), SOL_SOCKET, SO_BROADCAST, (char *) &one, sizeof(one)) == -1)
-		{
-			Handler().LogError(this, "SetBroadcast", Errno, StrError(Errno), LOG_LEVEL_WARNING);
-		}
-	}
-	else
-	{
-		if (setsockopt(GetSocket(), SOL_SOCKET, SO_BROADCAST, (char *) &zero, sizeof(zero)) == -1)
-		{
-			Handler().LogError(this, "SetBroadcast", Errno, StrError(Errno), LOG_LEVEL_WARNING);
-		}
-	}
-}
-
-
-bool UdpSocket::IsBroadcast()
-{
-	int is_broadcast = 0;
-	socklen_t size;
-
-	if (GetSocket() == INVALID_SOCKET)
-	{
-		CreateConnection();
-	}
-	if (getsockopt(GetSocket(), SOL_SOCKET, SO_BROADCAST, (char *)&is_broadcast, &size) == -1)
-	{
-		Handler().LogError(this, "IsBroadcast", Errno, StrError(Errno), LOG_LEVEL_WARNING);
-	}
-	return is_broadcast != 0;
-}
-
-
-void UdpSocket::SetMulticastTTL(int ttl)
-{
-	if (GetSocket() == INVALID_SOCKET)
-	{
-		CreateConnection();
-	}
-	if (setsockopt(GetSocket(), SOL_IP, IP_MULTICAST_TTL, (char *)&ttl, sizeof(int)) == -1)
-	{
-		Handler().LogError(this, "SetMulticastTTL", Errno, StrError(Errno), LOG_LEVEL_WARNING);
-	}
-}
-
-
-int UdpSocket::GetMulticastTTL()
-{
-	int ttl = 0;
-	socklen_t size = sizeof(int);
-
-	if (GetSocket() == INVALID_SOCKET)
-	{
-		CreateConnection();
-	}
-	if (getsockopt(GetSocket(), SOL_IP, IP_MULTICAST_TTL, (char *)&ttl, &size) == -1)
-	{
-		Handler().LogError(this, "GetMulticastTTL", Errno, StrError(Errno), LOG_LEVEL_WARNING);
-	}
-	return ttl;
-}
-
-
-void UdpSocket::SetMulticastLoop(bool x)
-{
-	if (GetSocket() == INVALID_SOCKET)
-	{
-		CreateConnection();
-	}
-#ifdef ENABLE_IPV6
-#ifdef IPPROTO_IPV6
-	if (IsIpv6())
-	{
-		int val = x ? 1 : 0;
-		if (setsockopt(GetSocket(), IPPROTO_IPV6, IPV6_MULTICAST_LOOP, (char *)&val, sizeof(int)) == -1)
-		{
-			Handler().LogError(this, "SetMulticastLoop", Errno, StrError(Errno), LOG_LEVEL_WARNING);
-		}
-		return;
-	}
-#endif
-#endif
-	int val = x ? 1 : 0;
-	if (setsockopt(GetSocket(), SOL_IP, IP_MULTICAST_LOOP, (char *)&val, sizeof(int)) == -1)
-	{
-		Handler().LogError(this, "SetMulticastLoop", Errno, StrError(Errno), LOG_LEVEL_WARNING);
-	}
-}
-
-
-bool UdpSocket::IsMulticastLoop()
-{
-	if (GetSocket() == INVALID_SOCKET)
-	{
-		CreateConnection();
-	}
-#ifdef ENABLE_IPV6
-#ifdef IPPROTO_IPV6
-	if (IsIpv6())
-	{
-		int is_loop = 0;
-		socklen_t size = sizeof(int);
-		if (getsockopt(GetSocket(), IPPROTO_IPV6, IPV6_MULTICAST_LOOP, (char *)&is_loop, &size) == -1)
-		{
-			Handler().LogError(this, "IsMulticastLoop", Errno, StrError(Errno), LOG_LEVEL_WARNING);
-		}
-		return is_loop ? true : false;
-	}
-#endif
-#endif
-	int is_loop = 0;
-	socklen_t size = sizeof(int);
-	if (getsockopt(GetSocket(), SOL_IP, IP_MULTICAST_LOOP, (char *)&is_loop, &size) == -1)
-	{
-		Handler().LogError(this, "IsMulticastLoop", Errno, StrError(Errno), LOG_LEVEL_WARNING);
-	}
-	return is_loop ? true : false;
-}
-
-
-void UdpSocket::AddMulticastMembership(const std::string& group, const std::string& local_if, int if_index)
-{
-	if (GetSocket() == INVALID_SOCKET)
-	{
-		CreateConnection();
-	}
-#ifdef ENABLE_IPV6
-#ifdef IPPROTO_IPV6
-	if (IsIpv6())
-	{
-		struct ipv6_mreq x;
-		struct in6_addr addr;
-		if (Utility::u2ip( group, addr ))
-		{
-			x.ipv6mr_multiaddr = addr;
-			x.ipv6mr_interface = if_index;
-			if (setsockopt(GetSocket(), IPPROTO_IPV6, IPV6_ADD_MEMBERSHIP, (char *)&x, sizeof(struct ipv6_mreq)) == -1)
-			{
-				Handler().LogError(this, "AddMulticastMembership", Errno, StrError(Errno), LOG_LEVEL_WARNING);
-			}
-		}
-		return;
-	}
-#endif
-#endif
-	struct ip_mreq x; // ip_mreqn
-	ipaddr_t addr;
-	if (Utility::u2ip( group, addr ))
-	{
-		memcpy(&x.imr_multiaddr.s_addr, &addr, sizeof(addr));
-		Utility::u2ip( local_if, addr);
-		memcpy(&x.imr_interface.s_addr, &addr, sizeof(addr));
-//		x.imr_ifindex = if_index;
-		if (setsockopt(GetSocket(), SOL_IP, IP_ADD_MEMBERSHIP, (char *)&x, sizeof(struct ip_mreq)) == -1)
-		{
-			Handler().LogError(this, "AddMulticastMembership", Errno, StrError(Errno), LOG_LEVEL_WARNING);
-		}
-	}
-}
-
-
-void UdpSocket::DropMulticastMembership(const std::string& group, const std::string& local_if, int if_index)
-{
-	if (GetSocket() == INVALID_SOCKET)
-	{
-		CreateConnection();
-	}
-#ifdef ENABLE_IPV6
-#ifdef IPPROTO_IPV6
-	if (IsIpv6())
-	{
-		struct ipv6_mreq x;
-		struct in6_addr addr;
-		if (Utility::u2ip( group, addr ))
-		{
-			x.ipv6mr_multiaddr = addr;
-			x.ipv6mr_interface = if_index;
-			if (setsockopt(GetSocket(), IPPROTO_IPV6, IPV6_DROP_MEMBERSHIP, (char *)&x, sizeof(struct ipv6_mreq)) == -1)
-			{
-				Handler().LogError(this, "DropMulticastMembership", Errno, StrError(Errno), LOG_LEVEL_WARNING);
-			}
-		}
-		return;
-	}
-#endif
-#endif
-	struct ip_mreq x; // ip_mreqn
-	ipaddr_t addr;
-	if (Utility::u2ip( group, addr ))
-	{
-		memcpy(&x.imr_multiaddr.s_addr, &addr, sizeof(addr));
-		Utility::u2ip( local_if, addr);
-		memcpy(&x.imr_interface.s_addr, &addr, sizeof(addr));
-//		x.imr_ifindex = if_index;
-		if (setsockopt(GetSocket(), SOL_IP, IP_DROP_MEMBERSHIP, (char *)&x, sizeof(struct ip_mreq)) == -1)
-		{
-			Handler().LogError(this, "DropMulticastMembership", Errno, StrError(Errno), LOG_LEVEL_WARNING);
-		}
-	}
-}
-
-
-#ifdef ENABLE_IPV6
-#ifdef IPPROTO_IPV6
-void UdpSocket::SetMulticastHops(int hops)
-{
-	if (GetSocket() == INVALID_SOCKET)
-	{
-		CreateConnection();
-	}
-	if (!IsIpv6())
-	{
-		Handler().LogError(this, "SetMulticastHops", 0, "Ipv6 only", LOG_LEVEL_ERROR);
-		return;
-	}
-	if (setsockopt(GetSocket(), IPPROTO_IPV6, IPV6_MULTICAST_HOPS, (char *)&hops, sizeof(int)) == -1)
-	{
-		Handler().LogError(this, "SetMulticastHops", Errno, StrError(Errno), LOG_LEVEL_WARNING);
-	}
-}
-
-
-int UdpSocket::GetMulticastHops()
-{
-	if (GetSocket() == INVALID_SOCKET)
-	{
-		CreateConnection();
-	}
-	if (!IsIpv6())
-	{
-		Handler().LogError(this, "SetMulticastHops", 0, "Ipv6 only", LOG_LEVEL_ERROR);
-		return -1;
-	}
-	int hops = 0;
-	socklen_t size = sizeof(int);
-	if (getsockopt(GetSocket(), IPPROTO_IPV6, IPV6_MULTICAST_HOPS, (char *)&hops, &size) == -1)
-	{
-		Handler().LogError(this, "GetMulticastHops", Errno, StrError(Errno), LOG_LEVEL_WARNING);
-	}
-	return hops;
-}
-#endif // IPPROTO_IPV6
-#endif
-
-
-bool UdpSocket::IsBound()
-{
-	return m_bind_ok;
-}
-
-
-void UdpSocket::OnRawData(const char *buf, size_t len, struct sockaddr *sa, socklen_t sa_len)
-{
-}
-
-
-void UdpSocket::OnRawData(const char *buf, size_t len, struct sockaddr *sa, socklen_t sa_len, struct timeval *ts)
-{
-}
-
-
-port_t UdpSocket::GetPort()
-{
-	return m_port;
-}
-
-
-int UdpSocket::GetLastSizeWritten()
-{
-	return m_last_size_written;
-}
-
-
-void UdpSocket::SetTimestamp(bool x)
-{
-	m_b_read_ts = x;
-}
-
-
-#ifdef SOCKETS_NAMESPACE
-}
-#endif
-
-