Moved a load of servers-only stuff into serverrec out of the way of userrec

git-svn-id: http://svn.inspircd.org/repository/trunk/inspircd@1417 e03df62e-2008-0410-955e-edbf42e46eb7

6 files changed, 420 insertions, 417 deletions

diff --git a/include/connection.h b/include/connection.h
index b84d39df9..6f33663af 100644
--- a/include/connection.h
+++ b/include/connection.h
@@ -270,51 +270,9 @@ class connection : public Extensible
 	 */
 	time_t nping;
 	
-	/** With a serverrec, this is a list of all established server connections.
-	 * With a userrec this is unused.
-	 */
-	std::vector<ircd_connector> connectors;
-	
 	/** Default constructor
 	 */
 	connection();
-	
-	/** Create a listening socket on 'host' using port number 'p'
-	 */
-	bool CreateListener(char* host, int p);
-	
-	/** Begin an outbound link to another ircd at targethost.
-	 */
-	bool BeginLink(char* targethost, int port, char* password, char* servername, int myport);
-	
-	/** Begin an outbound mesh link to another ircd on a network you are already an authenticated member of
-	 */
-	bool MeshCookie(char* targethost, int port, unsigned long cookie, char* servername);
-	
-	/** Terminate a link to 'targethost' by calling the ircd_connector::CloseConnection method.
-	 */
-	void TerminateLink(char* targethost);
-	
-	/** Send a message to a server by name, if the server is unavailable directly route the packet via another server
-	 * If the server still cannot be reached after attempting to route the message remotely, returns false.
-	 */
-	bool SendPacket(char *message, const char* host);
-	
-	/** Returns the next available packet and returns true if data is available. Writes the servername the data came from to 'host'.
-	 * If no data is available this function returns false.
-	 * This function will automatically close broken links and reroute pathways, generating split messages on the network.
-	 */
-	bool RecvPacket(std::deque<std::string> &messages, char* host, std::deque<std::string> &sums);
-	
-	/** Find the ircd_connector oject related to a certain servername given in 'host'
-	 */
-	ircd_connector* FindHost(std::string host);
-	
-	/** Add an incoming connection to the connection pool.
-	 * (reserved for core use)
-	 */
-	bool AddIncoming(int fd,char* targethost, int sourceport);
-	
 };
 
 
diff --git a/include/servers.h b/include/servers.h
index 09e6ad1c6..e7d7f2547 100644
--- a/include/servers.h
+++ b/include/servers.h
@@ -75,10 +75,48 @@ class serverrec : public connection
 	/** Destructor
 	 */
 	~serverrec();
-	
-};
 
+        /** With a serverrec, this is a list of all established server connections.
+         */
+        std::vector<ircd_connector> connectors;
+
+
+        /** Create a listening socket on 'host' using port number 'p'
+         */
+        bool CreateListener(char* host, int p);
+
+        /** Begin an outbound link to another ircd at targethost.
+         */
+        bool BeginLink(char* targethost, int port, char* password, char* servername, int myport);
+
+        /** Begin an outbound mesh link to another ircd on a network you are already an authenticated member of
+         */
+        bool MeshCookie(char* targethost, int port, unsigned long cookie, char* servername);
 
+        /** Terminate a link to 'targethost' by calling the ircd_connector::CloseConnection method.
+         */
+        void TerminateLink(char* targethost);
+
+        /** Send a message to a server by name, if the server is unavailable directly route the packet via another server
+         * If the server still cannot be reached after attempting to route the message remotely, returns false.
+         */
+        bool SendPacket(char *message, const char* host);
+
+        /** Returns the next available packet and returns true if data is available. Writes the servername the data came from to 'host'.
+         * If no data is available this function returns false.
+         * This function will automatically close broken links and reroute pathways, generating split messages on the network.
+         */
+        bool RecvPacket(std::deque<std::string> &messages, char* host, std::deque<std::string> &sums);
+
+        /** Find the ircd_connector oject related to a certain servername given in 'host'
+         */
+        ircd_connector* FindHost(std::string host);
+
+        /** Add an incoming connection to the connection pool.
+         * (reserved for core use)
+         */
+        bool AddIncoming(int fd,char* targethost, int sourceport);	
+};
 
 #endif
 
diff --git a/src/Makefile b/src/Makefile
index 7404fea5a..aeb1a9dd3 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -74,7 +74,7 @@ libIRCDdynamic.so: dynamic.cpp ../include/base.h ../include/dynamic.h ../include
 	$(CC) -pipe -I../include $(FLAGS) -export-dynamic -c dynamic.cpp
 	$(CC) -shared -o libIRCDdynamic.so dynamic.o
 
-libIRCDusers.so: users.cpp ../include/base.h ../include/users.h ../include/inspircd.h ../include/channels.h ../include/users.h ../include/globals.h ../include/inspircd_config.h
+libIRCDusers.so: users.cpp ../include/base.h ../include/users.h ../include/inspircd.h ../include/channels.h ../include/users.h ../include/globals.h ../include/inspircd_config.h ../include/connection.h
 	$(CC) -pipe -I../include $(FLAGS) -export-dynamic -c users.cpp
 	$(CC) -shared -o libIRCDusers.so users.o
 
@@ -86,7 +86,7 @@ libIRCDwildcard.so: wildcard.cpp ../include/base.h ../include/wildcard.h ../incl
 	$(CC) -pipe -I../include $(FLAGS) -export-dynamic -c wildcard.cpp
 	$(CC) -shared -o libIRCDwildcard.so wildcard.o
 
-libIRCDservers.so: servers.cpp ../include/base.h ../include/servers.h ../include/inspircd.h ../include/channels.h ../include/users.h ../include/globals.h ../include/inspircd_config.h
+libIRCDservers.so: servers.cpp ../include/base.h ../include/servers.h ../include/inspircd.h ../include/channels.h ../include/users.h ../include/globals.h ../include/inspircd_config.h ../include/connection.h
 	$(CC) -pipe -I../include $(FLAGS) -export-dynamic -c servers.cpp
 	$(CC) -shared -o libIRCDservers.so servers.o
 
diff --git a/src/connection.cpp b/src/connection.cpp
index c902c2d22..222251bb4 100644
--- a/src/connection.cpp
+++ b/src/connection.cpp
@@ -36,8 +36,6 @@ using namespace std;
 extern std::vector<Module*> modules;
 extern std::vector<ircd_module*> factory;
 
-std::deque<std::string> xsums;
-
 extern int MODCOUNT;
 
 extern time_t TIME;
@@ -78,66 +76,6 @@ connection::connection()
 }
 
 
-bool connection::CreateListener(char* newhost, int p)
-{
-	sockaddr_in host_address;
-	int flags;
-	in_addr addy;
-	int on = 0;
-	struct linger linger = { 0 };
-	
-	this->port = p;
-	
-	fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
-	if (fd <= 0)
-	{
-		return false;
-	}
-
-	setsockopt(fd,SOL_SOCKET,SO_REUSEADDR,(const char*)&on,sizeof(on));
-	linger.l_onoff = 1;
-	linger.l_linger = 1;
-	setsockopt(fd,SOL_SOCKET,SO_LINGER,(const char*)&linger,sizeof(linger));
-	
-	// attempt to increase socket sendq and recvq as high as its possible
-	// to get them on linux.
-	int sendbuf = 32768;
-	int recvbuf = 32768;
-	setsockopt(fd,SOL_SOCKET,SO_SNDBUF,(const void *)&sendbuf,sizeof(sendbuf)); 
-	setsockopt(fd,SOL_SOCKET,SO_RCVBUF,(const void *)&recvbuf,sizeof(sendbuf));
-
-	memset((void*)&host_address, 0, sizeof(host_address));
-
-	host_address.sin_family = AF_INET;
-
-	if (!strcmp(newhost,""))
-	{
-		host_address.sin_addr.s_addr = htonl(INADDR_ANY);
-	}
-	else
-	{
-  		inet_aton(newhost,&addy);
-		host_address.sin_addr = addy;
-	}
-
-	host_address.sin_port = htons(p);
-
-	if (bind(fd,(sockaddr*)&host_address,sizeof(host_address))<0)
-	{
-		return false;
-	}
-
-	// make the socket non-blocking
-	flags = fcntl(fd, F_GETFL, 0);
-	fcntl(fd, F_SETFL, flags | O_NONBLOCK);
-
-	this->port = p;
-
-	listen(this->fd,32);
-
-	return true;
-}
-
 char* ircd_connector::GetServerIP()
 {
 	return this->host;
@@ -262,43 +200,6 @@ bool ircd_connector::MakeOutboundConnection(char* newhost, int newport)
 }
 
 
-bool connection::BeginLink(char* targethost, int newport, char* password, char* servername, int myport)
-{
-	char connect[MAXBUF];
-	
-	ircd_connector connector;
-	ircd_connector *cn = this->FindHost(servername);
-
-
-	if (cn)
-	{
-		WriteOpers("CONNECT aborted: Server %s already exists",servername);
-		return false;
-	}
-
-	
-	if (this->fd)
-	{
-		if (connector.MakeOutboundConnection(targethost,newport))
-		{
-			// targethost has been turned into an ip...
-			// we dont want this as the server name.
-			connector.SetServerName(servername);
-			snprintf(connect,MAXBUF,"S %s %s %lu %lu :%s",getservername().c_str(),password,(unsigned long)myport,(unsigned long)GetRevision(),getserverdesc().c_str());
-			connector.SetState(STATE_NOAUTH_OUTBOUND);
-			connector.SetHostAndPort(targethost, newport);
-			this->connectors.push_back(connector);
-			return this->SendPacket(connect, servername);
-		}
-		else
-		{
-			connector.SetState(STATE_DISCONNECTED);
-			WriteOpers("Could not create outbound connection to %s:%d",targethost,newport);
-		}
-	}
-	return false;
-}
-
 void ircd_connector::SetVersionString(std::string newversion)
 {
 	log(DEBUG,"Set version of %s to %s",this->servername.c_str(),newversion.c_str());
@@ -310,79 +211,6 @@ std::string ircd_connector::GetVersionString()
 	return this->version;
 }
 
-bool connection::MeshCookie(char* targethost, int newport, unsigned long cookie, char* servername)
-{
-	char connect[MAXBUF];
-	
-	ircd_connector connector;
-	
-	WriteOpers("Establishing meshed link to %s:%d",servername,newport);
-
-	if (this->fd)
-	{
-		if (connector.MakeOutboundConnection(targethost,newport))
-		{
-			// targethost has been turned into an ip...
-			// we dont want this as the server name.
-			connector.SetServerName(servername);
-			snprintf(connect,MAXBUF,"- %lu %s :%s",cookie,getservername().c_str(),getserverdesc().c_str());
-			connector.SetState(STATE_NOAUTH_OUTBOUND);
-			connector.SetHostAndPort(targethost, newport);
-			connector.SetState(STATE_CONNECTED);
-			this->connectors.push_back(connector);
-			return this->SendPacket(connect, servername);
-		}
-		else
-		{
-			connector.SetState(STATE_DISCONNECTED);
-			WriteOpers("Could not create outbound connection to %s:%d",targethost,newport);
-		}
-	}
-	return false;
-}
-
-bool connection::AddIncoming(int newfd, char* targethost, int sourceport)
-{
-	ircd_connector connector;
-	
-	// targethost has been turned into an ip...
-	// we dont want this as the server name.
-	connector.SetServerName(targethost);
-	connector.SetDescriptor(newfd);
-	connector.SetState(STATE_NOAUTH_INBOUND);
-	int flags = fcntl(newfd, F_GETFL, 0);
-	fcntl(newfd, F_SETFL, flags | O_NONBLOCK);
-	int sendbuf = 32768;
-	int recvbuf = 32768;
-	setsockopt(newfd,SOL_SOCKET,SO_SNDBUF,(const void *)&sendbuf,sizeof(sendbuf)); 
-	setsockopt(newfd,SOL_SOCKET,SO_RCVBUF,(const void *)&recvbuf,sizeof(sendbuf));
-	connector.SetHostAndPort(targethost, sourceport);
-	connector.SetState(STATE_NOAUTH_INBOUND);
-	log(DEBUG,"connection::AddIncoming() Added connection: %s:%d",targethost,sourceport);
-	this->connectors.push_back(connector);
-	return true;
-}
-
-void connection::TerminateLink(char* targethost)
-{
-	// this locates the targethost in the connection::connectors vector of the class,
- 	// and terminates it by sending it an SQUIT token and closing its descriptor.
-	// TerminateLink with a null string causes a terminate of ALL links
-}
-
-
-// Returns a pointer to the connector for 'host'
-ircd_connector* connection::FindHost(std::string findhost)
-{
-	for (int i = 0; i < this->connectors.size(); i++)
-	{
-		if (this->connectors[i].GetServerName() == findhost)
-		{
-			return &this->connectors[i];
-		}
-	}
-	return NULL;
-}
 
 std::string ircd_connector::GetServerName()
 {
@@ -438,170 +266,3 @@ void ircd_connector::SetDescriptor(int newfd)
 {
 	this->fd = newfd;
 }
-
-bool connection::SendPacket(char *message, const char* sendhost)
-{
-	if ((!message) || (!sendhost))
-		return true;
-
-	ircd_connector* cn = this->FindHost(sendhost);
-	
-	if (!strchr(message,'\n'))
-	{
-		strlcat(message,"\n",MAXBUF);
-	}
-
-	if (cn)
-	{
-		log(DEBUG,"main: Connection::SendPacket() sent '%s' to %s",message,cn->GetServerName().c_str());
-		
-		if (cn->GetState() == STATE_DISCONNECTED)
-		{
-			log(DEBUG,"\n\n\n\nMain route to %s is down, seeking alternative\n\n\n\n",sendhost);
-			// fix: can only route one hop to avoid a loop
-			if (strncmp(message,"R ",2))
-			{
-				log(DEBUG,"Not a double reroute");
-				// this route is down, we must re-route the packet through an available point in the mesh.
-				for (int k = 0; k < this->connectors.size(); k++)
-				{
-					log(DEBUG,"Check connector %d: %s",k,this->connectors[k].GetServerName().c_str());
-					// search for another point in the mesh which can 'reach' where we want to go
-					for (int m = 0; m < this->connectors[k].routes.size(); m++)
-					{
-						log(DEBUG,"Check connector %d: %s route %s",k,this->connectors[k].GetServerName().c_str(),this->connectors[k].routes[m].c_str());
-						if (!strcasecmp(this->connectors[k].routes[m].c_str(),sendhost))
-						{
-							log(DEBUG,"Found alternative route for packet: %s",this->connectors[k].GetServerName().c_str());
-							char buffer[MAXBUF];
-							snprintf(buffer,MAXBUF,"R %s %s",sendhost,message);
-							this->SendPacket(buffer,this->connectors[k].GetServerName().c_str());
-							return true;
-						}
-					}
-				}
-			}
-			char buffer[MAXBUF];
-			snprintf(buffer,MAXBUF,"& %s",sendhost);
-			NetSendToAllExcept(sendhost,buffer);
-			log(DEBUG,"\n\nThere are no routes to %s, we're gonna boot the server off!\n\n",sendhost);
-			DoSplit(sendhost);
-			return false;
-		}
-
-		// returns false if the packet could not be sent (e.g. target host down)
-		if (send(cn->GetDescriptor(),message,strlen(message),0)<0)
-		{
-			log(DEBUG,"send() failed for Connection::SendPacket(): %s",strerror(errno));
-			log(DEBUG,"Disabling connector: %s",cn->GetServerName().c_str());
-			cn->CloseConnection();
-			cn->SetState(STATE_DISCONNECTED);
-			// retry the packet along a new route so either arrival OR failure are gauranteed (bugfix)
-			return this->SendPacket(message,sendhost);
-		}
-		return true;
-	}
-}
-
-bool already_have_sum(std::string sum)
-{
-	for (int i = 0; i < xsums.size(); i++)
-	{
-		if (xsums[i] == sum)
-		{
-			return true;
-		}
-	}
-	if (xsums.size() >= 128)
-	{
-		xsums.pop_front();
-	}
-	xsums.push_back(sum);
-	return false;
-}
-
-// receives a packet from any where there is data waiting, first come, first served
-// fills the message and host values with the host where the data came from.
-
-bool connection::RecvPacket(std::deque<std::string> &messages, char* recvhost,std::deque<std::string> &sums)
-{
-	char data[65536];
-	memset(data, 0, 65536);
-	for (int i = 0; i < this->connectors.size(); i++)
-	{
-		if (this->connectors[i].GetState() != STATE_DISCONNECTED)
-		{
-			// returns false if the packet could not be sent (e.g. target host down)
-			int rcvsize = 0;
-
-			// check if theres any data on this socket
-			// if not, continue onwards to the next.
-			pollfd polls;
-			polls.fd = this->connectors[i].GetDescriptor();
-			polls.events = POLLIN;
-			int ret = poll(&polls,1,1);
-			if (ret <= 0) continue;
-
-			rcvsize = recv(this->connectors[i].GetDescriptor(),data,65000,0);
-			data[rcvsize] = '\0';
-			if (rcvsize == -1)
-			{
-				if (errno != EAGAIN)
-				{
-					log(DEBUG,"recv() failed for Connection::RecvPacket(): %s",strerror(errno));
-					log(DEBUG,"Disabling connector: %s",this->connectors[i].GetServerName().c_str());
-					this->connectors[i].CloseConnection();
-					this->connectors[i].SetState(STATE_DISCONNECTED);
-				}
-			}
-			int pushed = 0;
-			if (rcvsize > 0)
-			{
-				this->connectors[i].AddBuffer(data);
-				if (this->connectors[i].BufferIsComplete())
-				{
-					while (this->connectors[i].BufferIsComplete())
-					{
-						std::string text = this->connectors[i].GetBuffer();
-						if (text != "")
-						{
-							if ((text[0] == ':') && (text.find(" ") != std::string::npos))
-							{
-								std::string orig = text;
-								log(DEBUG,"Original: %s",text.c_str());
-								std::string sum = text.substr(1,text.find(" ")-1);
-								text = text.substr(text.find(" ")+1,text.length());
-								std::string possible_token = text.substr(1,text.find(" ")-1);
-								if (possible_token.length() > 1)
-								{
-									sums.push_back("*");
-									text = orig;
-									log(DEBUG,"Non-mesh, non-tokenized string passed up the chain");
-								}
-								else
-								{
-									log(DEBUG,"Packet sum: '%s'",sum.c_str());
-									if ((already_have_sum(sum)) && (sum != "*"))
-									{
-										// we don't accept dupes
-										log(DEBUG,"Duplicate packet sum %s from server %s dropped",sum.c_str(),this->connectors[i].GetServerName().c_str());
-										continue;
-									}
-									sums.push_back(sum.c_str());
-								}
-							}
-							else sums.push_back("*");
-							messages.push_back(text.c_str());
-							strlcpy(recvhost,this->connectors[i].GetServerName().c_str(),160);
-							log(DEBUG,"Connection::RecvPacket() %d:%s->%s",pushed++,recvhost,text.c_str()); 
-						}
-					}
-					return true;
-				}
-			}
-		}
-	}
-	// nothing new yet -- message and host will be undefined
-	return false;
-}
-
diff --git a/src/inspircd.cpp b/src/inspircd.cpp
index 701b95381..d5156117a 100644
--- a/src/inspircd.cpp
+++ b/src/inspircd.cpp
@@ -2855,49 +2855,45 @@ int InspIRCd(char** argv, int argc)
 			}
 		}
      
+		std::deque<std::string> msgs;
+		std::deque<std::string> sums;
 		for (int x = 0; x < SERVERportCount; x++)
 		{
-			std::deque<std::string> msgs;
-			std::deque<std::string> sums;
-			msgs.clear();
 			sums.clear();
-			if (me[x])
+			msgs.clear();
+			while ((me[x]) && (me[x]->RecvPacket(msgs, tcp_host, sums))) // returns 0 or more lines (can be multiple lines!)
 			{
-				sums.clear();
-				msgs.clear();
-				while (me[x]->RecvPacket(msgs, tcp_host, sums))
+				for (int ctr = 0; ctr < msgs.size(); ctr++)
 				{
-					for (int ctr = 0; ctr < msgs.size(); ctr++)
+					strlcpy(tcp_msg,msgs[ctr].c_str(),MAXBUF);
+					strlcpy(tcp_sum,msgs[ctr].c_str(),MAXBUF);
+					log(DEBUG,"Processing: %s",tcp_msg);
+					if (!tcp_msg[0])
+   					{
+						log(DEBUG,"Invalid string from %s [route%lu]",tcp_host,(unsigned long)x);
+						break;
+					}
+					// during a netburst, send all data to all other linked servers
+					if ((((nb_start>0) && (tcp_msg[0] != 'Y') && (tcp_msg[0] != 'X') && (tcp_msg[0] != 'F'))) || (is_uline(tcp_host)))
 					{
-						strlcpy(tcp_msg,msgs[ctr].c_str(),MAXBUF);
-						strlcpy(tcp_sum,msgs[ctr].c_str(),MAXBUF);
-						log(DEBUG,"Processing: %s",tcp_msg);
-						if (!tcp_msg[0])
-    						{
-							log(DEBUG,"Invalid string from %s [route%lu]",tcp_host,(unsigned long)x);
-							break;
-						}
-						// during a netburst, send all data to all other linked servers
-						if ((((nb_start>0) && (tcp_msg[0] != 'Y') && (tcp_msg[0] != 'X') && (tcp_msg[0] != 'F'))) || (is_uline(tcp_host)))
+						if (is_uline(tcp_host))
 						{
-							if (is_uline(tcp_host))
+							if ((tcp_msg[0] != 'Y') && (tcp_msg[0] != 'X') && (tcp_msg[0] != 'F'))
 							{
-								if ((tcp_msg[0] != 'Y') && (tcp_msg[0] != 'X') && (tcp_msg[0] != 'F'))
-								{
-									NetSendToAllExcept_WithSum(tcp_host,tcp_msg,tcp_sum);
-								}
-							}
-							else
 								NetSendToAllExcept_WithSum(tcp_host,tcp_msg,tcp_sum);
+							}
 						}
-			                        std::string msg = tcp_msg;
-			                        FOREACH_MOD OnPacketReceive(msg,tcp_host);
-			                        strlcpy(tcp_msg,msg.c_str(),MAXBUF);
-						if (me[x])
-							handle_link_packet(tcp_msg, tcp_host, me[x], tcp_sum);
+						else
+							NetSendToAllExcept_WithSum(tcp_host,tcp_msg,tcp_sum);
 					}
-					//goto label;
+		                        std::string msg = tcp_msg;
+		                        FOREACH_MOD OnPacketReceive(msg,tcp_host);
+		                        strlcpy(tcp_msg,msg.c_str(),MAXBUF);
+					if (me[x])
+						handle_link_packet(tcp_msg, tcp_host, me[x], tcp_sum);
 				}
+                		        sums.clear();	// we're done, clear the list for the next operation
+		                        msgs.clear();
 			}
 		}
 	
diff --git a/src/servers.cpp b/src/servers.cpp
index 45ec5b00e..56e0d0c41 100644
--- a/src/servers.cpp
+++ b/src/servers.cpp
@@ -19,13 +19,25 @@ using namespace std;
 #include "inspircd_config.h" 
 #include "servers.h"
 #include "inspircd.h"
-#include <stdio.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <poll.h>
+#include <sys/errno.h>
+#include <sys/ioctl.h>
+#include <sys/utsname.h>
+#include <vector>
+#include <string>
+#include <deque>
+#include <sstream>
 #include <map>
 #include "inspstring.h"
 #include "helperfuncs.h"
+#include "connection.h"
 
 extern time_t TIME;
 
+std::deque<std::string> xsums;
+
 serverrec::serverrec()
 {
 	strlcpy(name,"",256);
@@ -38,6 +50,7 @@ serverrec::serverrec()
 	fd = 0;
 	sync_soon = false;
 	strlcpy(nickserv,"",NICKMAX);
+	connectors.clear();
 }
 
  
@@ -57,5 +70,342 @@ serverrec::serverrec(char* n, long ver, bool jupe)
 	fd = 0;
 	sync_soon = false;
 	strlcpy(nickserv,"",NICKMAX);
+	connectors.clear();
+}
+
+bool serverrec::CreateListener(char* newhost, int p)
+{
+        sockaddr_in host_address;
+        int flags;
+        in_addr addy;
+        int on = 0;
+        struct linger linger = { 0 };
+
+        this->port = p;
+
+        fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
+        if (fd <= 0)
+        {
+                return false;
+        }
+
+        setsockopt(fd,SOL_SOCKET,SO_REUSEADDR,(const char*)&on,sizeof(on));
+        linger.l_onoff = 1;
+        linger.l_linger = 1;
+        setsockopt(fd,SOL_SOCKET,SO_LINGER,(const char*)&linger,sizeof(linger));
+
+        // attempt to increase socket sendq and recvq as high as its possible
+        // to get them on linux.
+        int sendbuf = 32768;
+        int recvbuf = 32768;
+        setsockopt(fd,SOL_SOCKET,SO_SNDBUF,(const void *)&sendbuf,sizeof(sendbuf));
+        setsockopt(fd,SOL_SOCKET,SO_RCVBUF,(const void *)&recvbuf,sizeof(sendbuf));
+
+        memset((void*)&host_address, 0, sizeof(host_address));
+
+        host_address.sin_family = AF_INET;
+
+        if (!strcmp(newhost,""))
+        {
+                host_address.sin_addr.s_addr = htonl(INADDR_ANY);
+        }
+        else
+        {
+                inet_aton(newhost,&addy);
+                host_address.sin_addr = addy;
+        }
+
+        host_address.sin_port = htons(p);
+
+        if (bind(fd,(sockaddr*)&host_address,sizeof(host_address))<0)
+        {
+                return false;
+        }
+
+        // make the socket non-blocking
+        flags = fcntl(fd, F_GETFL, 0);
+        fcntl(fd, F_SETFL, flags | O_NONBLOCK);
+
+        this->port = p;
+
+        listen(this->fd,32);
+
+        return true;
+}
+
+
+bool serverrec::BeginLink(char* targethost, int newport, char* password, char* servername, int myport)
+{
+        char connect[MAXBUF];
+
+        ircd_connector connector;
+        ircd_connector *cn = this->FindHost(servername);
+
+
+        if (cn)
+        {
+                WriteOpers("CONNECT aborted: Server %s already exists",servername);
+                return false;
+        }
+
+
+        if (this->fd)
+        {
+                if (connector.MakeOutboundConnection(targethost,newport))
+                {
+                        // targethost has been turned into an ip...
+                        // we dont want this as the server name.
+                        connector.SetServerName(servername);
+                        snprintf(connect,MAXBUF,"S %s %s %lu %lu :%s",getservername().c_str(),password,(unsigned long)myport,(unsigned long)GetRevision(),getserverdesc().c_str());
+                        connector.SetState(STATE_NOAUTH_OUTBOUND);
+                        connector.SetHostAndPort(targethost, newport);
+                        this->connectors.push_back(connector);
+                        return this->SendPacket(connect, servername);
+                }
+                else
+                {
+                        connector.SetState(STATE_DISCONNECTED);
+                        WriteOpers("Could not create outbound connection to %s:%d",targethost,newport);
+                }
+        }
+        return false;
+}
+
+
+bool serverrec::MeshCookie(char* targethost, int newport, unsigned long cookie, char* servername)
+{
+        char connect[MAXBUF];
+
+        ircd_connector connector;
+
+        WriteOpers("Establishing meshed link to %s:%d",servername,newport);
+
+        if (this->fd)
+        {
+                if (connector.MakeOutboundConnection(targethost,newport))
+                {
+                        // targethost has been turned into an ip...
+                        // we dont want this as the server name.
+                        connector.SetServerName(servername);
+                        snprintf(connect,MAXBUF,"- %lu %s :%s",cookie,getservername().c_str(),getserverdesc().c_str());
+                        connector.SetState(STATE_NOAUTH_OUTBOUND);
+                        connector.SetHostAndPort(targethost, newport);
+                        connector.SetState(STATE_CONNECTED);
+                        this->connectors.push_back(connector);
+                        return this->SendPacket(connect, servername);
+                }
+                else
+                {
+                        connector.SetState(STATE_DISCONNECTED);
+                        WriteOpers("Could not create outbound connection to %s:%d",targethost,newport);
+                }
+        }
+        return false;
+}
+
+bool serverrec::AddIncoming(int newfd, char* targethost, int sourceport)
+{
+        ircd_connector connector;
+
+        // targethost has been turned into an ip...
+        // we dont want this as the server name.
+        connector.SetServerName(targethost);
+        connector.SetDescriptor(newfd);
+        connector.SetState(STATE_NOAUTH_INBOUND);
+        int flags = fcntl(newfd, F_GETFL, 0);
+        fcntl(newfd, F_SETFL, flags | O_NONBLOCK);
+        int sendbuf = 32768;
+        int recvbuf = 32768;
+        setsockopt(newfd,SOL_SOCKET,SO_SNDBUF,(const void *)&sendbuf,sizeof(sendbuf));
+        setsockopt(newfd,SOL_SOCKET,SO_RCVBUF,(const void *)&recvbuf,sizeof(sendbuf));
+        connector.SetHostAndPort(targethost, sourceport);
+        connector.SetState(STATE_NOAUTH_INBOUND);
+        log(DEBUG,"serverrec::AddIncoming() Added connection: %s:%d",targethost,sourceport);
+        this->connectors.push_back(connector);
+        return true;
+}
+
+void serverrec::TerminateLink(char* targethost)
+{
+        // this locates the targethost in the serverrec::connectors vector of the class,
+        // and terminates it by sending it an SQUIT token and closing its descriptor.
+        // TerminateLink with a null string causes a terminate of ALL links
+}
+
+// Returns a pointer to the connector for 'host'
+ircd_connector* serverrec::FindHost(std::string findhost)
+{
+        for (int i = 0; i < this->connectors.size(); i++)
+        {
+                if (this->connectors[i].GetServerName() == findhost)
+                {
+                        return &this->connectors[i];
+                }
+        }
+        return NULL;
+}
+
+bool serverrec::SendPacket(char *message, const char* sendhost)
+{
+        if ((!message) || (!sendhost))
+                return true;
+
+        ircd_connector* cn = this->FindHost(sendhost);
+
+        if (!strchr(message,'\n'))
+        {
+                strlcat(message,"\n",MAXBUF);
+        }
+
+        if (cn)
+        {
+                log(DEBUG,"main: serverrec::SendPacket() sent '%s' to %s",message,cn->GetServerName().c_str());
+
+                if (cn->GetState() == STATE_DISCONNECTED)
+                {
+                        log(DEBUG,"\n\n\n\nMain route to %s is down, seeking alternative\n\n\n\n",sendhost);
+                        // fix: can only route one hop to avoid a loop
+                        if (strncmp(message,"R ",2))
+                        {
+                                log(DEBUG,"Not a double reroute");
+                                // this route is down, we must re-route the packet through an available point in the mesh.
+                                for (int k = 0; k < this->connectors.size(); k++)
+                                {
+                                        log(DEBUG,"Check connector %d: %s",k,this->connectors[k].GetServerName().c_str());
+                                        // search for another point in the mesh which can 'reach' where we want to go
+                                        for (int m = 0; m < this->connectors[k].routes.size(); m++)
+                                        {
+                                                if (!strcasecmp(this->connectors[k].routes[m].c_str(),sendhost))
+                                                {
+                                                        log(DEBUG,"Found alternative route for packet: %s",this->connectors[k].GetServerName().c_str());
+                                                        char buffer[MAXBUF];
+                                                        snprintf(buffer,MAXBUF,"R %s %s",sendhost,message);
+                                                        this->SendPacket(buffer,this->connectors[k].GetServerName().c_str());
+                                                        return true;
+                                                }
+                                        }
+                                }
+                        }
+                        char buffer[MAXBUF];
+                        snprintf(buffer,MAXBUF,"& %s",sendhost);
+                        NetSendToAllExcept(sendhost,buffer);
+                        log(DEBUG,"\n\nThere are no routes to %s, we're gonna boot the server off!\n\n",sendhost);
+                        DoSplit(sendhost);
+                        return false;
+                }
+
+                // returns false if the packet could not be sent (e.g. target host down)
+                if (send(cn->GetDescriptor(),message,strlen(message),0)<0)
+                {
+                        log(DEBUG,"send() failed for serverrec::SendPacket(): %s",strerror(errno));
+                        log(DEBUG,"Disabling connector: %s",cn->GetServerName().c_str());
+                        cn->CloseConnection();
+                        cn->SetState(STATE_DISCONNECTED);
+                        // retry the packet along a new route so either arrival OR failure are gauranteed (bugfix)
+                        return this->SendPacket(message,sendhost);
+                }
+                return true;
+        }
+}
+
+bool already_have_sum(std::string sum)
+{
+        for (int i = 0; i < xsums.size(); i++)
+        {
+                if (xsums[i] == sum)
+                {
+                        return true;
+                }
+        }
+        if (xsums.size() >= 128)
+        {
+                xsums.pop_front();
+        }
+        xsums.push_back(sum);
+        return false;
+}
+
+// receives a packet from any where there is data waiting, first come, first served
+// fills the message and host values with the host where the data came from.
+
+bool serverrec::RecvPacket(std::deque<std::string> &messages, char* recvhost,std::deque<std::string> &sums)
+{
+        char data[65536];
+        memset(data, 0, 65536);
+        for (int i = 0; i < this->connectors.size(); i++)
+        {
+                if (this->connectors[i].GetState() != STATE_DISCONNECTED)
+                {
+                        // returns false if the packet could not be sent (e.g. target host down)
+                        int rcvsize = 0;
+
+                        // check if theres any data on this socket
+                        // if not, continue onwards to the next.
+                        pollfd polls;
+                        polls.fd = this->connectors[i].GetDescriptor();
+                        polls.events = POLLIN;
+                        int ret = poll(&polls,1,1);
+                        if (ret <= 0) continue;
+
+                        rcvsize = recv(this->connectors[i].GetDescriptor(),data,65000,0);
+                        data[rcvsize] = '\0';
+                        if (rcvsize == -1)
+                        {
+                                if (errno != EAGAIN)
+                                {
+                                        log(DEBUG,"recv() failed for serverrec::RecvPacket(): %s",strerror(errno));
+                                        log(DEBUG,"Disabling connector: %s",this->connectors[i].GetServerName().c_str());
+                                        this->connectors[i].CloseConnection();
+                                        this->connectors[i].SetState(STATE_DISCONNECTED);
+                                }
+                        }
+                        int pushed = 0;
+                        if (rcvsize > 0)
+                        {
+                                this->connectors[i].AddBuffer(data);
+                                if (this->connectors[i].BufferIsComplete())
+                                {
+                                        while (this->connectors[i].BufferIsComplete())
+                                        {
+                                                std::string text = this->connectors[i].GetBuffer();
+                                                if (text != "")
+                                                {
+                                                        if ((text[0] == ':') && (text.find(" ") != std::string::npos))
+                                                        {
+                                                                std::string orig = text;
+                                                                log(DEBUG,"Original: %s",text.c_str());
+                                                                std::string sum = text.substr(1,text.find(" ")-1);
+                                                                text = text.substr(text.find(" ")+1,text.length());
+                                                                std::string possible_token = text.substr(1,text.find(" ")-1);
+                                                                if (possible_token.length() > 1)
+                                                                {
+                                                                        sums.push_back("*");
+                                                                        text = orig;
+                                                                        log(DEBUG,"Non-mesh, non-tokenized string passed up the chain");
+                                                                }
+                                                                else
+                                                                {
+                                                                        log(DEBUG,"Packet sum: '%s'",sum.c_str());
+                                                                        if ((already_have_sum(sum)) && (sum != "*"))
+                                                                        {
+                                                                                // we don't accept dupes
+                                                                                continue;
+                                                                        }
+                                                                        sums.push_back(sum.c_str());
+                                                                }
+                                                        }
+                                                        else sums.push_back("*");
+                                                        messages.push_back(text.c_str());
+                                                        strlcpy(recvhost,this->connectors[i].GetServerName().c_str(),160);
+                                                        log(DEBUG,"serverrec::RecvPacket() %d:%s->%s",pushed++,recvhost,text.c_str());
+                                                }
+                                        }
+                                        return true;
+                                }
+                        }
+                }
+        }
+        // nothing new yet -- message and host will be undefined
+        return false;
 }