]> git.netwichtig.de Git - user/henk/code/inspircd.git/blobdiff - src/inspircd.cpp
Added m_watch.cpp (provides /WATCH for notify) and fixes to allow it to work
[user/henk/code/inspircd.git] / src / inspircd.cpp
index e2adcce16f9193e1dfcf6336d61755bcce0340a7..c780b8bf1c33c21cf9ca653ae9ac3aeaec32dc4f 100644 (file)
 
 using namespace std;
 
+#include "inspircd_config.h"
 #include "inspircd.h"
 #include "inspircd_io.h"
 #include "inspircd_util.h"
-#include "inspircd_config.h"
 #include <unistd.h>
 #include <fcntl.h>
 #include <sys/errno.h>
 #include <sys/ioctl.h>
 #include <sys/utsname.h>
-#include <cstdio>
+
+#ifdef USE_KQUEUE
+#include <sys/types.h>
+#include <sys/event.h>
+#include <sys/time.h>
+#endif
+
+#ifdef USE_EPOLL
+#include <sys/epoll.h>
+#define EP_DELAY 50
+#endif
+
 #include <time.h>
 #include <string>
 #ifdef GCC3
@@ -38,10 +49,7 @@ using namespace std;
 #include <map>
 #include <sstream>
 #include <vector>
-#include <errno.h>
 #include <deque>
-#include <errno.h>
-#include <unistd.h>
 #include <sched.h>
 #include "connection.h"
 #include "users.h"
@@ -57,12 +65,8 @@ using namespace std;
 #include "xline.h"
 #include "inspstring.h"
 #include "dnsqueue.h"
-
-#ifdef GCC3
-#define nspace __gnu_cxx
-#else
-#define nspace std
-#endif
+#include "helperfuncs.h"
+#include "hashcomp.h"
 
 int LogLevel = DEFAULT;
 char ServerName[MAXBUF];
@@ -84,7 +88,8 @@ int WHOWAS_STALE = 48; // default WHOWAS Entries last 2 days before they go 'sta
 int WHOWAS_MAX = 100;  // default 100 people maximum in the WHOWAS list
 int DieDelay  =  5;
 time_t startup_time = time(NULL);
-int NetBufferSize = 10240; // NetBufferSize used as the buffer size for all read() ops
+int NetBufferSize = 10240;     // NetBufferSize used as the buffer size for all read() ops
+int MaxConn = SOMAXCONN;       // size of accept() backlog (128 by default on *BSD)
 extern int MaxWhoResults;
 time_t nb_start = 0;
 int dns_timeout = 5;
@@ -104,77 +109,33 @@ int openSockfd[MAXSOCKS];
 bool nofork = false;
 bool unlimitcore = false;
 
-time_t TIME = time(NULL);
+time_t TIME = time(NULL), OLDTIME = time(NULL);
 
-namespace nspace
-{
-#ifdef GCC34
-        template<> struct hash<in_addr>
-#else
-        template<> struct nspace::hash<in_addr>
+#ifdef USE_KQUEUE
+int kq, lkq, skq;
 #endif
-        {
-                size_t operator()(const struct in_addr &a) const
-                {
-                        size_t q;
-                        memcpy(&q,&a,sizeof(size_t));
-                        return q;
-                }
-        };
-#ifdef GCC34
-        template<> struct hash<string>
-#else
-        template<> struct nspace::hash<string>
-#endif
-        {
-                size_t operator()(const string &s) const
-                {
-                        char a[MAXBUF];
-                        static struct hash<const char *> strhash;
-                        strlcpy(a,s.c_str(),MAXBUF);
-                        strlower(a);
-                        return strhash(a);
-                }
-        };
-}
-
 
-struct StrHashComp
-{
-
-       bool operator()(const string& s1, const string& s2) const
-       {
-               char a[MAXBUF],b[MAXBUF];
-               strlcpy(a,s1.c_str(),MAXBUF);
-               strlcpy(b,s2.c_str(),MAXBUF);
-               strlower(a);
-               strlower(b);
-               return (strcasecmp(a,b) == 0);
-       }
-
-};
-
-struct InAddr_HashComp
-{
+#ifdef USE_EPOLL
+int ep, lep, sep;
+#endif
 
-       bool operator()(const in_addr &s1, const in_addr &s2) const
-       {
-               size_t q;
-               size_t p;
-               
-               memcpy(&q,&s1,sizeof(size_t));
-               memcpy(&p,&s2,sizeof(size_t));
-               
-               return (q == p);
-       }
+bool has_been_netsplit = false;
+extern std::vector<std::string> include_stack;
 
-};
+typedef nspace::hash_map<std::string, userrec*, nspace::hash<string>, irc::StrHashComp> user_hash;
+typedef nspace::hash_map<std::string, chanrec*, nspace::hash<string>, irc::StrHashComp> chan_hash;
+typedef nspace::hash_map<in_addr,string*, nspace::hash<in_addr>, irc::InAddr_HashComp> address_cache;
+typedef nspace::hash_map<std::string, WhoWasUser*, nspace::hash<string>, irc::StrHashComp> whowas_hash;
+typedef std::deque<command_t> command_table;
+typedef std::map<std::string,time_t> autoconnects;
+typedef std::vector<std::string> servernamelist;
 
+// This table references users by file descriptor.
+// its an array to make it VERY fast, as all lookups are referenced
+// by an integer, meaning there is no need for a scan/search operation.
+userrec* fd_ref_table[65536];
 
-typedef nspace::hash_map<std::string, userrec*, nspace::hash<string>, StrHashComp> user_hash;
-typedef nspace::hash_map<std::string, chanrec*, nspace::hash<string>, StrHashComp> chan_hash;
-typedef nspace::hash_map<in_addr,string*, nspace::hash<in_addr>, InAddr_HashComp> address_cache;
-typedef std::deque<command_t> command_table;
+int statsAccept = 0, statsRefused = 0, statsUnknown = 0, statsCollisions = 0, statsDns = 0, statsDnsGood = 0, statsDnsBad = 0, statsConnects = 0, statsSent= 0, statsRecv = 0;
 
 serverrec* me[32];
 
@@ -182,25 +143,23 @@ FILE *log_file;
 
 user_hash clientlist;
 chan_hash chanlist;
-user_hash whowas;
+whowas_hash whowas;
 command_table cmdlist;
+autoconnects autoconns;
 file_cache MOTD;
 file_cache RULES;
 address_cache IP;
 
 ClassVector Classes;
+servernamelist servernames;
 
 struct linger linger = { 0 };
 char MyExecutable[1024];
 int boundPortCount = 0;
-int portCount = 0, UDPportCount = 0, ports[MAXSOCKS];
+int portCount = 0, SERVERportCount = 0, ports[MAXSOCKS];
 int defaultRoute = 0;
 char ModPath[MAXBUF];
 
-connection C;
-
-long MyKey = C.GenKey();
-
 /* prototypes */
 
 int has_channel(userrec *u, chanrec *c);
@@ -215,12 +174,34 @@ std::stringstream config_f(stringstream::in | stringstream::out);
 
 std::vector<userrec*> all_opers;
 
+char lowermap[255];
+
 void AddOper(userrec* user)
 {
        log(DEBUG,"Oper added to optimization list");
        all_opers.push_back(user);
 }
 
+void AddServerName(std::string servername)
+{
+       for (servernamelist::iterator a = servernames.begin(); a < servernames.end(); a++)
+       {
+               if (*a == servername)
+                       return;
+       }
+       servernames.push_back(servername);
+}
+
+const char* FindServerNamePtr(std::string servername)
+{
+       for (servernamelist::iterator a = servernames.begin(); a < servernames.end(); a++)
+       {
+               if (*a == servername)
+                       return a->c_str();
+       }
+       return "";
+}
+
 void DeleteOper(userrec* user)
 {
         for (std::vector<userrec*>::iterator a = all_opers.begin(); a < all_opers.end(); a++)
@@ -234,7 +215,7 @@ void DeleteOper(userrec* user)
         }
 }
 
-long GetRevision()
+std::string GetRevision()
 {
        char Revision[] = "$Revision$";
        char *s1 = Revision;
@@ -243,7 +224,7 @@ long GetRevision()
        s1 = savept;
        v2 = strtok_r(s1," ",&savept);
        s1 = savept;
-       return (long)(atof(v2)*10000);
+       return std::string(v2);
 }
 
 
@@ -277,73 +258,13 @@ std::string getadminnick()
        return AdminNick;
 }
 
-void log(int level,char *text, ...)
-{
-       char textbuffer[MAXBUF];
-       va_list argsPtr;
-       time_t rawtime;
-       struct tm * timeinfo;
-       if (level < LogLevel)
-               return;
-
-       time(&rawtime);
-       timeinfo = localtime (&rawtime);
-
-       if (log_file)
-       {
-               char b[MAXBUF];
-               va_start (argsPtr, text);
-               vsnprintf(textbuffer, MAXBUF, text, argsPtr);
-               va_end(argsPtr);
-               strlcpy(b,asctime(timeinfo),MAXBUF);
-               b[24] = ':';    // we know this is the end of the time string
-               fprintf(log_file,"%s %s\n",b,textbuffer);
-               if (nofork)
-               {
-                       // nofork enabled? display it on terminal too
-                       printf("%s %s\n",b,textbuffer);
-               }
-       }
-}
-
-void readfile(file_cache &F, const char* fname)
-{
-       FILE* file;
-       char linebuf[MAXBUF];
-       
-       log(DEBUG,"readfile: loading %s",fname);
-       F.clear();
-       file =  fopen(fname,"r");
-       if (file)
-       {
-               while (!feof(file))
-               {
-                       fgets(linebuf,sizeof(linebuf),file);
-                       linebuf[strlen(linebuf)-1]='\0';
-                       if (linebuf[0] == 0)
-                       {
-                               strcpy(linebuf,"  ");
-                       }
-                       if (!feof(file))
-                       {
-                               F.push_back(linebuf);
-                       }
-               }
-               fclose(file);
-       }
-       else
-       {
-               log(DEBUG,"readfile: failed to load file: %s",fname);
-       }
-       log(DEBUG,"readfile: loaded %s, %lu lines",fname,(unsigned long)F.size());
-}
-
 void ReadConfig(bool bail, userrec* user)
 {
-       char dbg[MAXBUF],pauseval[MAXBUF],Value[MAXBUF],timeout[MAXBUF],NB[MAXBUF],flood[MAXBUF],MW[MAXBUF];
-       char AH[MAXBUF],AP[MAXBUF],AF[MAXBUF],DNT[MAXBUF],pfreq[MAXBUF];
+       char dbg[MAXBUF],pauseval[MAXBUF],Value[MAXBUF],timeout[MAXBUF],NB[MAXBUF],flood[MAXBUF],MW[MAXBUF],MCON[MAXBUF];
+       char AH[MAXBUF],AP[MAXBUF],AF[MAXBUF],DNT[MAXBUF],pfreq[MAXBUF],thold[MAXBUF],sqmax[MAXBUF],rqmax[MAXBUF];
        ConnectClass c;
        std::stringstream errstr;
+       include_stack.clear();
        
        if (!LoadConf(CONFIG_FILE,&config_f,&errstr))
        {
@@ -401,12 +322,18 @@ void ReadConfig(bool bail, userrec* user)
        ConfValue("dns","timeout",0,DNT,&config_f);
        ConfValue("options","moduledir",0,ModPath,&config_f);
         ConfValue("disabled","commands",0,DisabledCommands,&config_f);
+       ConfValue("options","somaxconn",0,MCON,&config_f);
 
+       MaxConn = atoi(MCON);
+       if (MaxConn > SOMAXCONN)
+               log(DEFAULT,"WARNING: <options:somaxconn> value may be higher than the system-defined SOMAXCONN value!");
        NetBufferSize = atoi(NB);
        MaxWhoResults = atoi(MW);
        dns_timeout = atoi(DNT);
        if (!dns_timeout)
                dns_timeout = 5;
+       if (!MaxConn)
+               MaxConn = SOMAXCONN;
        if (!DNSServer[0])
                strlcpy(DNSServer,"127.0.0.1",MAXBUF);
        if (!ModPath[0])
@@ -446,6 +373,9 @@ void ReadConfig(bool bail, userrec* user)
                ConfValue("connect","timeout",i,timeout,&config_f);
                ConfValue("connect","flood",i,flood,&config_f);
                ConfValue("connect","pingfreq",i,pfreq,&config_f);
+               ConfValue("connect","threshold",i,thold,&config_f);
+               ConfValue("connect","sendq",i,sqmax,&config_f);
+               ConfValue("connect","recvq",i,rqmax,&config_f);
                if (Value[0])
                {
                        strlcpy(c.host,Value,MAXBUF);
@@ -456,6 +386,21 @@ void ReadConfig(bool bail, userrec* user)
                        c.registration_timeout = 90; // default is 2 minutes
                        c.pingtime = 120;
                        c.flood = atoi(flood);
+                       c.threshold = 5;
+                       c.sendqmax = 262144; // 256k
+                       c.recvqmax = 4096;   // 4k
+                       if (atoi(thold)>0)
+                       {
+                               c.threshold = atoi(thold);
+                       }
+                       if (atoi(sqmax)>0)
+                       {
+                               c.sendqmax = atoi(sqmax);
+                       }
+                       if (atoi(rqmax)>0)
+                       {
+                               c.recvqmax = atoi(rqmax);
+                       }
                        if (atoi(timeout)>0)
                        {
                                c.registration_timeout = atoi(timeout);
@@ -481,6 +426,20 @@ void ReadConfig(bool bail, userrec* user)
        read_xline_defaults();
        log(DEFAULT,"Applying K lines, Q lines and Z lines...");
        apply_lines();
+
+       autoconns.clear();
+        for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
+        {
+               char Link_ServerName[MAXBUF],Link_AConn[MAXBUF];
+                ConfValue("link","name",i,Link_ServerName,&config_f);
+                ConfValue("link","autoconnect",i,Link_AConn,&config_f);
+               if (strcmp(Link_AConn,""))
+               {
+                       autoconns[std::string(Link_ServerName)] = atoi(Link_AConn) + time(NULL);
+               }
+        }
+
+
        log(DEFAULT,"Done reading configuration file, InspIRCd is now starting.");
        if (!bail)
        {
@@ -531,965 +490,33 @@ void ReadConfig(bool bail, userrec* user)
                if (!removed_modules.empty())
                for (std::vector<std::string>::iterator removing = removed_modules.begin(); removing != removed_modules.end(); removing++)
                {
-                       if (UnloadModule(removing->c_str()))
-                       {
-                               WriteOpers("*** REHASH UNLOADED MODULE: %s",removing->c_str());
-                               WriteServ(user->fd,"973 %s %s :Module %s successfully unloaded.",user->nick, removing->c_str(), removing->c_str());
-                               rem++;
-                       }
-                       else
-                       {
-                               WriteServ(user->fd,"972 %s %s :Failed to unload module %s: %s",user->nick, removing->c_str(), removing->c_str(), ModuleError());
-                       }
-               }
-               if (!added_modules.empty())
-               for (std::vector<std::string>::iterator adding = added_modules.begin(); adding != added_modules.end(); adding++)
-               {
-                       if (LoadModule(adding->c_str()))
-                       {
-                               WriteOpers("*** REHASH LOADED MODULE: %s",adding->c_str());
-                               WriteServ(user->fd,"975 %s %s :Module %s successfully loaded.",user->nick, adding->c_str(), adding->c_str());
-                               add++;
-                       }
-                       else
-                       {
-                               WriteServ(user->fd,"974 %s %s :Failed to load module %s: %s",user->nick, adding->c_str(), adding->c_str(), ModuleError());
-                       }
-               }
-               log(DEFAULT,"Successfully unloaded %lu of %lu modules and loaded %lu of %lu modules.",(unsigned long)rem,(unsigned long)removed_modules.size(),(unsigned long)add,(unsigned long)added_modules.size());
-       }
-}
-
-/* write formatted text to a socket, in same format as printf */
-
-void Write(int sock,char *text, ...)
-{
-       if (sock == FD_MAGIC_NUMBER)
-               return;
-       if (!text)
-       {
-               log(DEFAULT,"*** BUG *** Write was given an invalid parameter");
-               return;
-       }
-       char textbuffer[MAXBUF];
-       va_list argsPtr;
-       char tb[MAXBUF];
-       
-       va_start (argsPtr, text);
-       vsnprintf(textbuffer, MAXBUF, text, argsPtr);
-       va_end(argsPtr);
-       int bytes = snprintf(tb,MAXBUF,"%s\r\n",textbuffer);
-       chop(tb);
-       if (sock != -1)
-       {
-               write(sock,tb,bytes > 514 ? 514 : bytes);
-       }
-}
-
-/* write a server formatted numeric response to a single socket */
-
-void WriteServ(int sock, char* text, ...)
-{
-        if (sock == FD_MAGIC_NUMBER)
-                return;
-       if (!text)
-       {
-               log(DEFAULT,"*** BUG *** WriteServ was given an invalid parameter");
-               return;
-       }
-       char textbuffer[MAXBUF],tb[MAXBUF];
-       va_list argsPtr;
-       va_start (argsPtr, text);
-       
-       vsnprintf(textbuffer, MAXBUF, text, argsPtr);
-       va_end(argsPtr);
-       int bytes = snprintf(tb,MAXBUF,":%s %s\r\n",ServerName,textbuffer);
-       chop(tb);
-       if (sock != -1)
-       {
-               write(sock,tb,bytes > 514 ? 514 : bytes);
-       }
-}
-
-/* write text from an originating user to originating user */
-
-void WriteFrom(int sock, userrec *user,char* text, ...)
-{
-        if (sock == FD_MAGIC_NUMBER)
-                return;
-       if ((!text) || (!user))
-       {
-               log(DEFAULT,"*** BUG *** WriteFrom was given an invalid parameter");
-               return;
-       }
-       char textbuffer[MAXBUF],tb[MAXBUF];
-       va_list argsPtr;
-       va_start (argsPtr, text);
-       
-       vsnprintf(textbuffer, MAXBUF, text, argsPtr);
-       va_end(argsPtr);
-       int bytes = snprintf(tb,MAXBUF,":%s!%s@%s %s\r\n",user->nick,user->ident,user->dhost,textbuffer);
-       chop(tb);
-       if (sock != -1)
-       {
-               write(sock,tb,bytes > 514 ? 514 : bytes);
-       }
-}
-
-/* write text to an destination user from a source user (e.g. user privmsg) */
-
-void WriteTo(userrec *source, userrec *dest,char *data, ...)
-{
-       if ((!dest) || (!data))
-       {
-               log(DEFAULT,"*** BUG *** WriteTo was given an invalid parameter");
-               return;
-       }
-        if (dest->fd == FD_MAGIC_NUMBER)
-                return;
-       char textbuffer[MAXBUF],tb[MAXBUF];
-       va_list argsPtr;
-       va_start (argsPtr, data);
-       vsnprintf(textbuffer, MAXBUF, data, argsPtr);
-       va_end(argsPtr);
-       chop(tb);
-
-       // if no source given send it from the server.
-       if (!source)
-       {
-               WriteServ(dest->fd,":%s %s",ServerName,textbuffer);
-       }
-       else
-       {
-               WriteFrom(dest->fd,source,"%s",textbuffer);
-       }
-}
-
-/* write formatted text from a source user to all users on a channel
- * including the sender (NOT for privmsg, notice etc!) */
-
-void WriteChannel(chanrec* Ptr, userrec* user, char* text, ...)
-{
-       if ((!Ptr) || (!user) || (!text))
-       {
-               log(DEFAULT,"*** BUG *** WriteChannel was given an invalid parameter");
-               return;
-       }
-       char textbuffer[MAXBUF];
-       va_list argsPtr;
-       va_start (argsPtr, text);
-       vsnprintf(textbuffer, MAXBUF, text, argsPtr);
-       va_end(argsPtr);
-
-       std::vector<char*> *ulist = Ptr->GetUsers();
-       for (int j = 0; j < ulist->size(); j++)
-       {
-               char* o = (*ulist)[j];
-               userrec* otheruser = (userrec*)o;
-               if (otheruser->fd != FD_MAGIC_NUMBER)
-                       WriteTo(user,otheruser,"%s",textbuffer);
-       }
-}
-
-/* write formatted text from a source user to all users on a channel
- * including the sender (NOT for privmsg, notice etc!) doesnt send to
- * users on remote servers */
-
-void WriteChannelLocal(chanrec* Ptr, userrec* user, char* text, ...)
-{
-       if ((!Ptr) || (!text))
-       {
-               log(DEFAULT,"*** BUG *** WriteChannel was given an invalid parameter");
-               return;
-       }
-       char textbuffer[MAXBUF];
-       va_list argsPtr;
-       va_start (argsPtr, text);
-       vsnprintf(textbuffer, MAXBUF, text, argsPtr);
-       va_end(argsPtr);
-
-        std::vector<char*> *ulist = Ptr->GetUsers();
-        for (int j = 0; j < ulist->size(); j++)
-        {
-                char* o = (*ulist)[j];
-                userrec* otheruser = (userrec*)o;
-                if ((otheruser->fd != FD_MAGIC_NUMBER) && (otheruser->fd != -1) && (otheruser != user))
-               {
-                       if (!user)
-                       {
-                               WriteServ(otheruser->fd,"%s",textbuffer);
-                       }
-                       else
-                       {
-                               WriteTo(user,otheruser,"%s",textbuffer);
-                       }
-               }
-        }
-}
-
-
-void WriteChannelWithServ(char* ServName, chanrec* Ptr, char* text, ...)
-{
-       if ((!Ptr) || (!text))
-       {
-               log(DEFAULT,"*** BUG *** WriteChannelWithServ was given an invalid parameter");
-               return;
-       }
-       char textbuffer[MAXBUF];
-       va_list argsPtr;
-       va_start (argsPtr, text);
-       vsnprintf(textbuffer, MAXBUF, text, argsPtr);
-       va_end(argsPtr);
-
-
-        std::vector<char*> *ulist = Ptr->GetUsers();
-        for (int j = 0; j < ulist->size(); j++)
-        {
-                char* o = (*ulist)[j];
-                userrec* otheruser = (userrec*)o;
-                if (otheruser->fd != FD_MAGIC_NUMBER)
-                        WriteServ(otheruser->fd,"%s",textbuffer);
-        }
-}
-
-
-/* write formatted text from a source user to all users on a channel except
- * for the sender (for privmsg etc) */
-
-void ChanExceptSender(chanrec* Ptr, userrec* user, char* text, ...)
-{
-       if ((!Ptr) || (!user) || (!text))
-       {
-               log(DEFAULT,"*** BUG *** ChanExceptSender was given an invalid parameter");
-               return;
-       }
-       char textbuffer[MAXBUF];
-       va_list argsPtr;
-       va_start (argsPtr, text);
-       vsnprintf(textbuffer, MAXBUF, text, argsPtr);
-       va_end(argsPtr);
-
-        std::vector<char*> *ulist = Ptr->GetUsers();
-        for (int j = 0; j < ulist->size(); j++)
-        {
-                char* o = (*ulist)[j];
-                userrec* otheruser = (userrec*)o;
-                if ((otheruser->fd != FD_MAGIC_NUMBER) && (user != otheruser))
-                        WriteFrom(otheruser->fd,user,"%s",textbuffer);
-        }
-}
-
-
-std::string GetServerDescription(char* servername)
-{
-       for (int j = 0; j < 32; j++)
-       {
-               if (me[j] != NULL)
-               {
-                       for (int k = 0; k < me[j]->connectors.size(); k++)
-                       {
-                               if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),servername))
-                               {
-                                       return me[j]->connectors[k].GetDescription();
-                               }
-                       }
-               }
-               return ServerDesc; // not a remote server that can be found, it must be me.
-       }
-}
-
-
-/* write a formatted string to all users who share at least one common
- * channel, including the source user e.g. for use in NICK */
-
-void WriteCommon(userrec *u, char* text, ...)
-{
-       if (!u)
-       {
-               log(DEFAULT,"*** BUG *** WriteCommon was given an invalid parameter");
-               return;
-       }
-
-       if (u->registered != 7) {
-               log(DEFAULT,"*** BUG *** WriteCommon on an unregistered user");
-               return;
-       }
-       
-       char textbuffer[MAXBUF];
-       va_list argsPtr;
-       va_start (argsPtr, text);
-       vsnprintf(textbuffer, MAXBUF, text, argsPtr);
-       va_end(argsPtr);
-
-       // FIX: Stops a message going to the same person more than once
-       std::vector<int> already_sent;
-
-        for (int i = 0; i < MAXCHANS; i++)
-        {
-                if (u->chans[i].channel)
-                {
-                        std::vector<char*> *ulist = u->chans[i].channel->GetUsers();
-                        for (int j = 0; j < ulist->size(); j++)
-                        {
-                                char* o = (*ulist)[j];
-                                userrec* otheruser = (userrec*)o;
-                               bool do_send = true;
-                               for (int t = 0; t < already_sent.size(); t++)
-                               {
-                                       if (already_sent[t] == otheruser->fd)
-                                       {
-                                               do_send = false;
-                                               break;
-                                       }
-                               }
-                               if (do_send)
-                               {
-                                       already_sent.push_back(otheruser->fd);
-                                       WriteFrom(otheruser->fd,u,"%s",textbuffer);
-                               }
-                        }
-                }
-        }
-}
-
-/* write a formatted string to all users who share at least one common
- * channel, NOT including the source user e.g. for use in QUIT */
-
-void WriteCommonExcept(userrec *u, char* text, ...)
-{
-       if (!u)
-       {
-               log(DEFAULT,"*** BUG *** WriteCommon was given an invalid parameter");
-               return;
-       }
-
-       if (u->registered != 7) {
-               log(DEFAULT,"*** BUG *** WriteCommon on an unregistered user");
-               return;
-       }
-
-       char textbuffer[MAXBUF];
-       va_list argsPtr;
-       va_start (argsPtr, text);
-       vsnprintf(textbuffer, MAXBUF, text, argsPtr);
-       va_end(argsPtr);
-
-       std::vector<int> already_sent;
-
-        for (int i = 0; i < MAXCHANS; i++)
-        {
-                if (u->chans[i].channel)
-                {
-                        std::vector<char*> *ulist = u->chans[i].channel->GetUsers();
-                        for (int j = 0; j < ulist->size(); j++)
-                        {
-                                char* o = (*ulist)[j];
-                                userrec* otheruser = (userrec*)o;
-                               if (u != otheruser)
-                               {
-                                       bool do_send = true;
-                                       for (int t = 0; t < already_sent.size(); t++)
-                                       {
-                                               if (already_sent[t] == otheruser->fd)
-                                               {
-                                                       do_send = false;
-                                                       break;
-                                               }
-                                       }
-                                       if (do_send)
-                                       {
-                                               already_sent.push_back(otheruser->fd);
-                                               WriteFrom(otheruser->fd,u,"%s",textbuffer);
-                                       }
-                               }
-                        }
-                }
-        }
-}
-
-void WriteOpers(char* text, ...)
-{
-       if (!text)
-       {
-               log(DEFAULT,"*** BUG *** WriteOpers was given an invalid parameter");
-               return;
-       }
-
-       char textbuffer[MAXBUF];
-       va_list argsPtr;
-       va_start (argsPtr, text);
-       vsnprintf(textbuffer, MAXBUF, text, argsPtr);
-       va_end(argsPtr);
-
-       for (std::vector<userrec*>::iterator i = all_opers.begin(); i != all_opers.end(); i++)
-       {
-               userrec* a = *i;
-               if ((a) && (a->fd != FD_MAGIC_NUMBER))
-               {
-                       if (strchr(a->modes,'s'))
-                       {
-                               // send server notices to all with +s
-                               WriteServ(a->fd,"NOTICE %s :%s",a->nick,textbuffer);
-                       }
-               }
-       }
-}
-
-// returns TRUE of any users on channel C occupy server 'servername'.
-
-bool ChanAnyOnThisServer(chanrec *c,char* servername)
-{
-       log(DEBUG,"ChanAnyOnThisServer");
-
-        std::vector<char*> *ulist = c->GetUsers();
-        for (int j = 0; j < ulist->size(); j++)
-        {
-                char* o = (*ulist)[j];
-                userrec* user = (userrec*)o;
-                if (!strcasecmp(user->server,servername))
-                       return true;
-        }
-       return false;
-}
-
-// returns true if user 'u' shares any common channels with any users on server 'servername'
-
-bool CommonOnThisServer(userrec* u,const char* servername)
-{
-       log(DEBUG,"ChanAnyOnThisServer");
-
-        for (int i = 0; i < MAXCHANS; i++)
-        {
-                if (u->chans[i].channel)
-                {
-                        std::vector<char*> *ulist = u->chans[i].channel->GetUsers();
-                        for (int j = 0; j < ulist->size(); j++)
-                        {
-                                char* o = (*ulist)[j];
-                                userrec* user = (userrec*)o;
-                                if (!strcasecmp(user->server,servername))
-                                       return true;
-                        }
-                }
-        }
-       return false;
-}
-
-
-void NetSendToCommon(userrec* u, char* s)
-{
-       char buffer[MAXBUF];
-       snprintf(buffer,MAXBUF,"%s",s);
-       
-       log(DEBUG,"NetSendToCommon: '%s' '%s'",u->nick,s);
-
-        std::string msg = buffer;
-        FOREACH_MOD OnPacketTransmit(msg,s);
-        strlcpy(buffer,msg.c_str(),MAXBUF);
-
-       for (int j = 0; j < 32; j++)
-       {
-               if (me[j] != NULL)
-               {
-                       for (int k = 0; k < me[j]->connectors.size(); k++)
-                       {
-                               if (CommonOnThisServer(u,me[j]->connectors[k].GetServerName().c_str()))
-                               {
-                                       me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
-                               }
-                       }
-               }
-       }
-}
-
-
-void NetSendToAll(char* s)
-{
-       char buffer[MAXBUF];
-       snprintf(buffer,MAXBUF,"%s",s);
-       
-       log(DEBUG,"NetSendToAll: '%s'",s);
-
-        std::string msg = buffer;
-        FOREACH_MOD OnPacketTransmit(msg,s);
-        strlcpy(buffer,msg.c_str(),MAXBUF);
-
-       for (int j = 0; j < 32; j++)
-       {
-               if (me[j] != NULL)
-               {
-                       for (int k = 0; k < me[j]->connectors.size(); k++)
-                       {
-                               me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
-                       }
-               }
-       }
-}
-
-void NetSendToAllAlive(char* s)
-{
-       char buffer[MAXBUF];
-       snprintf(buffer,MAXBUF,"%s",s);
-       
-       log(DEBUG,"NetSendToAllAlive: '%s'",s);
-
-        std::string msg = buffer;
-        FOREACH_MOD OnPacketTransmit(msg,s);
-        strlcpy(buffer,msg.c_str(),MAXBUF);
-
-       for (int j = 0; j < 32; j++)
-       {
-               if (me[j] != NULL)
-               {
-                       for (int k = 0; k < me[j]->connectors.size(); k++)
-                       {
-                               if (me[j]->connectors[k].GetState() != STATE_DISCONNECTED)
-                               {
-                                       me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
-                               }
-                               else
-                               {
-                                       log(DEBUG,"%s is dead, not sending to it.",me[j]->connectors[k].GetServerName().c_str());
-                               }
-                       }
-               }
-       }
-}
-
-
-void NetSendToOne(char* target,char* s)
-{
-       char buffer[MAXBUF];
-       snprintf(buffer,MAXBUF,"%s",s);
-       
-       log(DEBUG,"NetSendToOne: '%s' '%s'",target,s);
-
-        std::string msg = buffer;
-        FOREACH_MOD OnPacketTransmit(msg,s);
-        strlcpy(buffer,msg.c_str(),MAXBUF);
-
-       for (int j = 0; j < 32; j++)
-       {
-               if (me[j] != NULL)
-               {
-                       for (int k = 0; k < me[j]->connectors.size(); k++)
-                       {
-                               if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),target))
-                               {
-                                       me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
-                               }
-                       }
-               }
-       }
-}
-
-void NetSendToAllExcept(const char* target,char* s)
-{
-       char buffer[MAXBUF];
-       snprintf(buffer,MAXBUF,"%s",s);
-       
-       log(DEBUG,"NetSendToAllExcept: '%s' '%s'",target,s);
-       
-        std::string msg = buffer;
-        FOREACH_MOD OnPacketTransmit(msg,s);
-        strlcpy(buffer,msg.c_str(),MAXBUF);
-
-       for (int j = 0; j < 32; j++)
-       {
-               if (me[j] != NULL)
-               {
-                       for (int k = 0; k < me[j]->connectors.size(); k++)
-                       {
-                               if (strcasecmp(me[j]->connectors[k].GetServerName().c_str(),target))
-                               {
-                                       me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
-                               }
-                       }
-               }
-       }
-}
-
-
-void WriteMode(const char* modes, int flags, const char* text, ...)
-{
-       if ((!text) || (!modes) || (!flags))
-       {
-               log(DEFAULT,"*** BUG *** WriteMode was given an invalid parameter");
-               return;
-       }
-
-       char textbuffer[MAXBUF];
-       va_list argsPtr;
-       va_start (argsPtr, text);
-       vsnprintf(textbuffer, MAXBUF, text, argsPtr);
-       va_end(argsPtr);
-       int modelen = strlen(modes);
-
-       for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
-       {
-               if ((i->second) && (i->second->fd != FD_MAGIC_NUMBER))
-               {
-                       bool send_to_user = false;
-                       
-                       if (flags == WM_AND)
-                       {
-                               send_to_user = true;
-                               for (int n = 0; n < modelen; n++)
-                               {
-                                       if (!hasumode(i->second,modes[n]))
-                                       {
-                                               send_to_user = false;
-                                               break;
-                                       }
-                               }
-                       }
-                       else if (flags == WM_OR)
-                       {
-                               send_to_user = false;
-                               for (int n = 0; n < modelen; n++)
-                               {
-                                       if (hasumode(i->second,modes[n]))
-                                       {
-                                               send_to_user = true;
-                                               break;
-                                       }
-                               }
-                       }
-
-                       if (send_to_user)
-                       {
-                               WriteServ(i->second->fd,"NOTICE %s :%s",i->second->nick,textbuffer);
-                       }
-               }
-       }
-}
-
-
-void WriteWallOps(userrec *source, bool local_only, char* text, ...)  
-{  
-       if ((!text) || (!source))
-       {
-               log(DEFAULT,"*** BUG *** WriteOpers was given an invalid parameter");
-               return;
-       }
-
-        char textbuffer[MAXBUF];  
-        va_list argsPtr;  
-        va_start (argsPtr, text);  
-        vsnprintf(textbuffer, MAXBUF, text, argsPtr);  
-        va_end(argsPtr);  
-  
-       for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
-        {
-               if ((i->second) && (i->second->fd != FD_MAGIC_NUMBER))
-               {
-                       if (strchr(i->second->modes,'w'))
-                       {
-                               WriteTo(source,i->second,"WALLOPS :%s",textbuffer);
-                       }
-                }
-       }
-
-       if (!local_only)
-       {
-               char buffer[MAXBUF];
-               snprintf(buffer,MAXBUF,"@ %s :%s",source->nick,textbuffer);
-               NetSendToAll(buffer);
-       }
-}  
-
-/* convert a string to lowercase. Note following special circumstances
- * taken from RFC 1459. Many "official" server branches still hold to this
- * rule so i will too;
- *
- *  Because of IRC's scandanavian origin, the characters {}| are
- *  considered to be the lower case equivalents of the characters []\,
- *  respectively. This is a critical issue when determining the
- *  equivalence of two nicknames.
- */
-
-void strlower(char *n)
-{
-       if (!n)
-       {
-               return;
-       }
-       for (int i = 0; n[i] != 0; i++)
-       {
-               n[i] = tolower(n[i]);
-               if (n[i] == '[')
-                       n[i] = '{';
-               if (n[i] == ']')
-                       n[i] = '}';
-               if (n[i] == '\\')
-                       n[i] = '|';
-       }
-}
-
-
-
-/* Find a user record by nickname and return a pointer to it */
-
-userrec* Find(std::string nick)
-{
-       user_hash::iterator iter = clientlist.find(nick);
-
-       if (iter == clientlist.end())
-               /* Couldn't find it */
-               return NULL;
-
-       return iter->second;
-}
-
-/* find a channel record by channel name and return a pointer to it */
-
-chanrec* FindChan(const char* chan)
-{
-       if (!chan)
-       {
-               log(DEFAULT,"*** BUG *** Findchan was given an invalid parameter");
-               return NULL;
-       }
-
-       chan_hash::iterator iter = chanlist.find(chan);
-
-       if (iter == chanlist.end())
-               /* Couldn't find it */
-               return NULL;
-
-       return iter->second;
-}
-
-
-long GetMaxBans(char* name)
-{
-       char CM[MAXBUF];
-       for (int count = 0; count < ConfValueEnum("banlist",&config_f); count++)
-       {
-               ConfValue("banlist","chan",count,CM,&config_f);
-               if (match(name,CM))
-               {
-                       ConfValue("banlist","limit",count,CM,&config_f);
-                       return atoi(CM);
-               }
-       }
-       return 64;
-}
-
-
-void purge_empty_chans(userrec* u)
-{
-
-       int go_again = 1, purge = 0;
-
-       // firstly decrement the count on each channel
-       for (int f = 0; f < MAXCHANS; f++)
-       {
-               if (u->chans[f].channel)
-               {
-                       u->chans[f].channel->DecUserCounter();
-                       u->chans[f].channel->DelUser((char*)u);
-               }
-       }
-
-       for (int i = 0; i < MAXCHANS; i++)
-       {
-               if (u->chans[i].channel)
-               {
-                       if (!usercount(u->chans[i].channel))
+                       if (UnloadModule(removing->c_str()))
                        {
-                               chan_hash::iterator i2 = chanlist.find(u->chans[i].channel->name);
-                               /* kill the record */
-                               if (i2 != chanlist.end())
-                               {
-                                       log(DEBUG,"del_channel: destroyed: %s",i2->second->name);
-                                       if (i2->second)
-                                               delete i2->second;
-                                       chanlist.erase(i2);
-                                       go_again = 1;
-                                       purge++;
-                                       u->chans[i].channel = NULL;
-                               }
+                               WriteOpers("*** REHASH UNLOADED MODULE: %s",removing->c_str());
+                               WriteServ(user->fd,"973 %s %s :Module %s successfully unloaded.",user->nick, removing->c_str(), removing->c_str());
+                               rem++;
                        }
                        else
                        {
-                               log(DEBUG,"skipped purge for %s",u->chans[i].channel->name);
-                       }
-               }
-       }
-       log(DEBUG,"completed channel purge, killed %lu",(unsigned long)purge);
-
-       DeleteOper(u);
-}
-
-
-char scratch[MAXBUF];
-char sparam[MAXBUF];
-
-char* chanmodes(chanrec *chan)
-{
-       if (!chan)
-       {
-               log(DEFAULT,"*** BUG *** chanmodes was given an invalid parameter");
-               strcpy(scratch,"");
-               return scratch;
-       }
-
-       strcpy(scratch,"");
-       strcpy(sparam,"");
-       if (chan->noexternal)
-       {
-               strlcat(scratch,"n",MAXMODES);
-       }
-       if (chan->topiclock)
-       {
-               strlcat(scratch,"t",MAXMODES);
-       }
-       if (chan->key[0])
-       {
-               strlcat(scratch,"k",MAXMODES);
-       }
-       if (chan->limit)
-       {
-               strlcat(scratch,"l",MAXMODES);
-       }
-       if (chan->inviteonly)
-       {
-               strlcat(scratch,"i",MAXMODES);
-       }
-       if (chan->moderated)
-       {
-               strlcat(scratch,"m",MAXMODES);
-       }
-       if (chan->secret)
-       {
-               strlcat(scratch,"s",MAXMODES);
-       }
-       if (chan->c_private)
-       {
-               strlcat(scratch,"p",MAXMODES);
-       }
-       if (chan->key[0])
-       {
-               strlcat(sparam," ",MAXBUF);
-               strlcat(sparam,chan->key,MAXBUF);
-       }
-       if (chan->limit)
-       {
-               char foo[24];
-               sprintf(foo," %lu",(unsigned long)chan->limit);
-               strlcat(sparam,foo,MAXBUF);
-       }
-       if (*chan->custom_modes)
-       {
-               strlcat(scratch,chan->custom_modes,MAXMODES);
-               for (int z = 0; chan->custom_modes[z] != 0; z++)
-               {
-                       std::string extparam = chan->GetModeParameter(chan->custom_modes[z]);
-                       if (extparam != "")
-                       {
-                               strlcat(sparam," ",MAXBUF);
-                               strlcat(sparam,extparam.c_str(),MAXBUF);
+                               WriteServ(user->fd,"972 %s %s :Failed to unload module %s: %s",user->nick, removing->c_str(), removing->c_str(), ModuleError());
                        }
                }
-       }
-       log(DEBUG,"chanmodes: %s %s%s",chan->name,scratch,sparam);
-       strlcat(scratch,sparam,MAXMODES);
-       return scratch;
-}
-
-
-/* compile a userlist of a channel into a string, each nick seperated by
- * spaces and op, voice etc status shown as @ and + */
-
-void userlist(userrec *user,chanrec *c)
-{
-       if ((!c) || (!user))
-       {
-               log(DEFAULT,"*** BUG *** userlist was given an invalid parameter");
-               return;
-       }
-
-       snprintf(list,MAXBUF,"353 %s = %s :", user->nick, c->name);
-       for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
-       {
-               if (has_channel(i->second,c))
+               if (!added_modules.empty())
+               for (std::vector<std::string>::iterator adding = added_modules.begin(); adding != added_modules.end(); adding++)
                {
-                       if (isnick(i->second->nick))
+                       if (LoadModule(adding->c_str()))
                        {
-                               if ((!has_channel(i->second,c)) && (strchr(i->second->modes,'i')))
-                               {
-                                       /* user is +i, and source not on the channel, does not show
-                                        * nick in NAMES list */
-                                       continue;
-                               }
-                               strlcat(list,cmode(i->second,c),MAXBUF);
-                               strlcat(list,i->second->nick,MAXBUF);
-                               strlcat(list," ",MAXBUF);
-                               if (strlen(list)>(480-NICKMAX))
-                               {
-                                       /* list overflowed into
-                                        * multiple numerics */
-                                       WriteServ(user->fd,"%s",list);
-                                       snprintf(list,MAXBUF,"353 %s = %s :", user->nick, c->name);
-                               }
+                               WriteOpers("*** REHASH LOADED MODULE: %s",adding->c_str());
+                               WriteServ(user->fd,"975 %s %s :Module %s successfully loaded.",user->nick, adding->c_str(), adding->c_str());
+                               add++;
                        }
-               }
-       }
-       /* if whats left in the list isnt empty, send it */     if (list[strlen(list)-1] != ':')
-       {
-               WriteServ(user->fd,"%s",list);
-       }
-}
-
-/* return a count of the users on a specific channel accounting for
- * invisible users who won't increase the count. e.g. for /LIST */
-
-int usercount_i(chanrec *c)
-{
-       int count = 0;
-       
-       if (!c)
-       {
-               log(DEFAULT,"*** BUG *** usercount_i was given an invalid parameter");
-               return 0;
-       }
-
-       strcpy(list,"");
-       for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
-       {
-               if (i->second)
-               {
-                       if (has_channel(i->second,c))
+                       else
                        {
-                               if (isnick(i->second->nick))
-                               {
-                                       if ((!has_channel(i->second,c)) && (strchr(i->second->modes,'i')))
-                                       {
-                                               /* user is +i, and source not on the channel, does not show
-                                                * nick in NAMES list */
-                                               continue;
-                                       }
-                                       count++;
-                               }
+                               WriteServ(user->fd,"974 %s %s :Failed to load module %s: %s",user->nick, adding->c_str(), adding->c_str(), ModuleError());
                        }
                }
+               log(DEFAULT,"Successfully unloaded %lu of %lu modules and loaded %lu of %lu modules.",(unsigned long)rem,(unsigned long)removed_modules.size(),(unsigned long)add,(unsigned long)added_modules.size());
        }
-       log(DEBUG,"usercount_i: %s %lu",c->name,(unsigned long)count);
-       return count;
-}
-
-
-int usercount(chanrec *c)
-{
-       if (!c)
-       {
-               log(DEFAULT,"*** BUG *** usercount was given an invalid parameter");
-               return 0;
-       }
-       int count = c->GetUserCounter();
-       log(DEBUG,"usercount: %s %lu",c->name,(unsigned long)count);
-       return count;
 }
 
 
@@ -1513,9 +540,9 @@ chanrec* add_channel(userrec *user, const char* cn, const char* key, bool overri
        // we MUST declare this wherever we use FOREACH_RESULT
        int MOD_RESULT = 0;
 
-       if (strlen(cname) > CHANMAX-1)
+       if (strlen(cname) > CHANMAX)
        {
-               cname[CHANMAX-1] = '\0';
+               cname[CHANMAX] = '\0';
        }
 
        log(DEBUG,"add_channel: %s %s",user->nick,cname);
@@ -1540,8 +567,7 @@ chanrec* add_channel(userrec *user, const char* cn, const char* key, bool overri
                        chanlist[cname] = new chanrec();
 
                        strlcpy(chanlist[cname]->name, cname,CHANMAX);
-                       chanlist[cname]->topiclock = 1;
-                       chanlist[cname]->noexternal = 1;
+                       chanlist[cname]->binarymodes = CM_TOPICLOCK | CM_NOEXTERNAL;
                        chanlist[cname]->created = TIME;
                        strcpy(chanlist[cname]->topic, "");
                        strncpy(chanlist[cname]->setby, user->nick,NICKMAX);
@@ -1606,7 +632,7 @@ chanrec* add_channel(userrec *user, const char* cn, const char* key, bool overri
                                        FOREACH_RESULT(OnCheckInvite(user, Ptr));
                                        if (MOD_RESULT == 0)
                                        {
-                                               if (Ptr->inviteonly)
+                                               if (Ptr->binarymodes & CM_INVITEONLY)
                                                {
                                                        log(DEBUG,"add_channel: channel is +i");
                                                        if (user->IsInvited(Ptr->name))
@@ -1698,7 +724,6 @@ chanrec* add_channel(userrec *user, const char* cn, const char* key, bool overri
                                user->chans[index].uc_modes = 0;
                        }
                        user->chans[index].channel = Ptr;
-                       Ptr->IncUserCounter();
                        Ptr->AddUser((char*)user);
                        WriteChannel(Ptr,user,"JOIN :%s",Ptr->name);
                        
@@ -1801,7 +826,6 @@ chanrec* del_channel(userrec *user, const char* cname, const char* reason, bool
                }
        }
 
-       Ptr->DecUserCounter();
        Ptr->DelUser((char*)user);
        
        /* if there are no users left on the channel */
@@ -1815,7 +839,7 @@ chanrec* del_channel(userrec *user, const char* cname, const char* reason, bool
                if (iter != chanlist.end())
                {
                        log(DEBUG,"del_channel: destroyed: %s",Ptr->name);
-                       if (iter->second) delete iter->second;
+                       delete Ptr;
                        chanlist.erase(iter);
                }
        }
@@ -1886,7 +910,6 @@ void kick_channel(userrec *src,userrec *user, chanrec *Ptr, char* reason)
                }
        }
 
-       Ptr->DecUserCounter();
        Ptr->DelUser((char*)user);
 
        /* if there are no users left on the channel */
@@ -1900,7 +923,7 @@ void kick_channel(userrec *src,userrec *user, chanrec *Ptr, char* reason)
                if (iter != chanlist.end())
                {
                        log(DEBUG,"del_channel: destroyed: %s",Ptr->name);
-                       if (iter->second) delete iter->second;
+                       delete Ptr;
                        chanlist.erase(iter);
                }
        }
@@ -2090,7 +1113,6 @@ void kill_link(userrec *user,const char* r)
        Write(user->fd,"ERROR :Closing link (%s@%s) [%s]",user->ident,user->host,reason);
        log(DEBUG,"closing fd %lu",(unsigned long)user->fd);
 
-       /* bugfix, cant close() a nonblocking socket (sux!) */
        if (user->registered == 7) {
                FOREACH_MOD OnUserQuit(user);
                WriteCommonExcept(user,"QUIT :%s",reason);
@@ -2101,31 +1123,53 @@ void kill_link(userrec *user,const char* r)
                NetSendToAll(buffer);
        }
 
+       user->FlushWriteBuf();
+
        FOREACH_MOD OnUserDisconnect(user);
 
        if (user->fd > -1)
        {
-               shutdown(user->fd,2);
-               close(user->fd);
-       }
-       
-       if (user->registered == 7) {
-               WriteOpers("*** Client exiting: %s!%s@%s [%s]",user->nick,user->ident,user->host,reason);
-               AddWhoWas(user);
+               FOREACH_MOD OnRawSocketClose(user->fd);
+#ifdef USE_KQUEUE
+               struct kevent ke;
+               EV_SET(&ke, user->fd, EVFILT_READ, EV_DELETE, 0, 0, NULL);
+               int i = kevent(kq, &ke, 1, 0, 0, NULL);
+               if (i == -1)
+               {
+                       log(DEBUG,"kqueue: Failed to remove user from queue!");
+               }
+#endif
+#ifdef USE_EPOLL
+               struct epoll_event ev;
+               ev.events = EPOLLIN | EPOLLET;
+               ev.data.fd = user->fd;
+               int i = epoll_ctl(ep, EPOLL_CTL_DEL, user->fd, &ev);
+               if (i < 0)
+               {
+                       log(DEBUG,"epoll: List deletion failure!");
+               }
+#endif
+               user->CloseSocket();
        }
 
+       // this must come before the WriteOpers so that it doesnt try to fill their buffer with anything
+       // if they were an oper with +s.
         if (user->registered == 7) {
                 purge_empty_chans(user);
-        }
+               // fix by brain: only show local quits because we only show local connects (it just makes SENSE)
+               if (!strcmp(user->server,ServerName))
+                       WriteOpers("*** Client exiting: %s!%s@%s [%s]",user->nick,user->ident,user->host,reason);
+               AddWhoWas(user);
+       }
 
        if (iter != clientlist.end())
        {
-               log(DEBUG,"deleting user hash value %lu",(unsigned long)iter->second);
-               if ((iter->second) && (user->registered == 7)) {
-                       if (iter->second) delete iter->second;
-               }
+               log(DEBUG,"deleting user hash value %lu",(unsigned long)user);
+               if (user->fd > -1)
+                       fd_ref_table[user->fd] = NULL;
                clientlist.erase(iter);
        }
+       delete user;
 }
 
 void kill_link_silent(userrec *user,const char* r)
@@ -2145,7 +1189,8 @@ void kill_link_silent(userrec *user,const char* r)
        Write(user->fd,"ERROR :Closing link (%s@%s) [%s]",user->ident,user->host,reason);
        log(DEBUG,"closing fd %lu",(unsigned long)user->fd);
 
-       /* bugfix, cant close() a nonblocking socket (sux!) */
+       user->FlushWriteBuf();
+
        if (user->registered == 7) {
                FOREACH_MOD OnUserQuit(user);
                WriteCommonExcept(user,"QUIT :%s",reason);
@@ -2160,8 +1205,27 @@ void kill_link_silent(userrec *user,const char* r)
 
         if (user->fd > -1)
         {
-                shutdown(user->fd,2);
-                close(user->fd);
+               FOREACH_MOD OnRawSocketClose(user->fd);
+#ifdef USE_KQUEUE
+                struct kevent ke;
+                EV_SET(&ke, user->fd, EVFILT_READ, EV_DELETE, 0, 0, NULL);
+                int i = kevent(kq, &ke, 1, 0, 0, NULL);
+                if (i == -1)
+                {
+                        log(DEBUG,"kqueue: Failed to remove user from queue!");
+                }
+#endif
+#ifdef USE_EPOLL
+                struct epoll_event ev;
+                ev.events = EPOLLIN | EPOLLET;
+                ev.data.fd = user->fd;
+                int i = epoll_ctl(ep, EPOLL_CTL_DEL, user->fd, &ev);
+                if (i < 0)
+                {
+                        log(DEBUG,"epoll: List deletion failure!");
+                }
+#endif
+               user->CloseSocket();
         }
 
         if (user->registered == 7) {
@@ -2170,81 +1234,16 @@ void kill_link_silent(userrec *user,const char* r)
        
        if (iter != clientlist.end())
        {
-               log(DEBUG,"deleting user hash value %lu",(unsigned long)iter->second);
-               if ((iter->second) && (user->registered == 7)) {
-                       if (iter->second) delete iter->second;
-               }
+               log(DEBUG,"deleting user hash value %lu",(unsigned long)user);
+                if (user->fd > -1)
+                        fd_ref_table[user->fd] = NULL;
                clientlist.erase(iter);
        }
+       delete user;
 }
 
 
-
-// looks up a users password for their connection class (<ALLOW>/<DENY> tags)
-
-char* Passwd(userrec *user)
-{
-       for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
-       {
-               if (match(user->host,i->host) && (i->type == CC_ALLOW))
-               {
-                       return i->pass;
-               }
-       }
-       return "";
-}
-
-bool IsDenied(userrec *user)
-{
-       for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
-       {
-               if (match(user->host,i->host) && (i->type == CC_DENY))
-               {
-                       return true;
-               }
-       }
-       return false;
-}
-
-
-
-
-/* sends out an error notice to all connected clients (not to be used
- * lightly!) */
-
-void send_error(char *s)
-{
-       log(DEBUG,"send_error: %s",s);
-       for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
-       {
-               if (isnick(i->second->nick))
-               {
-                       WriteServ(i->second->fd,"NOTICE %s :%s",i->second->nick,s);
-               }
-               else
-               {
-                       // fix - unregistered connections receive ERROR, not NOTICE
-                       Write(i->second->fd,"ERROR :%s",s);
-               }
-       }
-}
-
-void Error(int status)
-{
-       signal (SIGALRM, SIG_IGN);
-       signal (SIGPIPE, SIG_IGN);
-       signal (SIGTERM, SIG_IGN);
-       signal (SIGABRT, SIG_IGN);
-       signal (SIGSEGV, SIG_IGN);
-       signal (SIGURG, SIG_IGN);
-       signal (SIGKILL, SIG_IGN);
-       log(DEFAULT,"*** fell down a pothole in the road to perfection ***");
-       send_error("Error! Segmentation fault! save meeeeeeeeeeeeee *splat!*");
-       Exit(status);
-}
-
-
-int main(int argc, char **argv)
+int main(int argc, char** argv)
 {
        Start();
        srand(time(NULL));
@@ -2272,7 +1271,18 @@ int main(int argc, char **argv)
        }
        strlcpy(MyExecutable,argv[0],MAXBUF);
        
-       if (InspIRCd() == ERROR)
+       // initialize the lowercase mapping table
+       for (int cn = 0; cn < 256; cn++)
+               lowermap[cn] = cn;
+       // lowercase the uppercase chars
+       for (int cn = 65; cn < 91; cn++)
+               lowermap[cn] = tolower(cn);
+       // now replace the specific chars for scandanavian comparison
+       lowermap['['] = '{';
+       lowermap[']'] = '}';
+       lowermap['\\'] = '|';
+
+       if (InspIRCd(argv,argc) == ERROR)
        {
                log(DEFAULT,"main: daemon function bailed");
                printf("ERROR: could not initialise. Shutting down.\n");
@@ -2309,8 +1319,8 @@ userrec* ReHashNick(char* Old, char* New)
 
        log(DEBUG,"ReHashNick: Found hashed nick %s",Old);
 
-       clientlist[New] = new userrec();
-       clientlist[New] = oldnick->second;
+       userrec* olduser = oldnick->second;
+       clientlist[New] = olduser;
        clientlist.erase(oldnick);
 
        log(DEBUG,"ReHashNick: Nick rehashed as %s",New);
@@ -2321,13 +1331,13 @@ userrec* ReHashNick(char* Old, char* New)
 /* adds or updates an entry in the whowas list */
 void AddWhoWas(userrec* u)
 {
-       user_hash::iterator iter = whowas.find(u->nick);
-       userrec *a = new userrec();
+       whowas_hash::iterator iter = whowas.find(u->nick);
+       WhoWasUser *a = new WhoWasUser();
        strlcpy(a->nick,u->nick,NICKMAX);
-       strlcpy(a->ident,u->ident,64);
-       strlcpy(a->dhost,u->dhost,256);
-       strlcpy(a->host,u->host,256);
-       strlcpy(a->fullname,u->fullname,128);
+       strlcpy(a->ident,u->ident,IDENTMAX);
+       strlcpy(a->dhost,u->dhost,160);
+       strlcpy(a->host,u->host,160);
+       strlcpy(a->fullname,u->fullname,MAXGECOS);
        strlcpy(a->server,u->server,256);
        a->signon = u->signon;
 
@@ -2338,19 +1348,24 @@ void AddWhoWas(userrec* u)
        
        if (iter == whowas.end())
        {
-               if (whowas.size() == WHOWAS_MAX)
+               if (whowas.size() >= WHOWAS_MAX)
                {
-                       for (user_hash::iterator i = whowas.begin(); i != whowas.end(); i++)
+                       for (whowas_hash::iterator i = whowas.begin(); i != whowas.end(); i++)
                        {
                                // 3600 seconds in an hour ;)
                                if ((i->second->signon)<(TIME-(WHOWAS_STALE*3600)))
                                {
+                                       // delete the old one
                                        if (i->second) delete i->second;
+                                       // replace with new one
                                        i->second = a;
                                        log(DEBUG,"added WHOWAS entry, purged an old record");
                                        return;
                                }
                        }
+                       // no space left and user doesnt exist. Don't leave ram in use!
+                       log(DEBUG,"Not able to update whowas (list at WHOWAS_MAX entries and trying to add new?), freeing excess ram");
+                       delete a;
                }
                else
                {
@@ -2379,7 +1394,19 @@ void AddClient(int socket, char* host, int port, bool iscached, char* ip)
 
        iter = clientlist.find(tempnick);
 
-       if (iter != clientlist.end()) return;
+       // fix by brain.
+       // as these nicknames are 'RFC impossible', we can be sure nobody is going to be
+       // using one as a registered connection. As theyre per fd, we can also safely assume
+       // that we wont have collisions. Therefore, if the nick exists in the list, its only
+       // used by a dead socket, erase the iterator so that the new client may reclaim it.
+       // this was probably the cause of 'server ignores me when i hammer it with reconnects'
+       // issue in earlier alphas/betas
+       if (iter != clientlist.end())
+       {
+               userrec* goner = iter->second;
+               delete goner;
+               clientlist.erase(iter);
+       }
 
        /*
         * It is OK to access the value here this way since we know
@@ -2394,20 +1421,23 @@ void AddClient(int socket, char* host, int port, bool iscached, char* ip)
        log(DEBUG,"AddClient: %lu %s %d %s",(unsigned long)socket,host,port,ip);
 
        clientlist[tempnick]->fd = socket;
-       strncpy(clientlist[tempnick]->nick, tn2,NICKMAX);
-       strncpy(clientlist[tempnick]->host, host,160);
-       strncpy(clientlist[tempnick]->dhost, host,160);
-       strncpy(clientlist[tempnick]->server, ServerName,256);
-       strncpy(clientlist[tempnick]->ident, "unknown",12);
+       strlcpy(clientlist[tempnick]->nick, tn2,NICKMAX);
+       strlcpy(clientlist[tempnick]->host, host,160);
+       strlcpy(clientlist[tempnick]->dhost, host,160);
+       clientlist[tempnick]->server = (char*)FindServerNamePtr(ServerName);
+       strlcpy(clientlist[tempnick]->ident, "unknown",IDENTMAX);
        clientlist[tempnick]->registered = 0;
        clientlist[tempnick]->signon = TIME+dns_timeout;
        clientlist[tempnick]->lastping = 1;
        clientlist[tempnick]->port = port;
-       strncpy(clientlist[tempnick]->ip,ip,32);
+       strlcpy(clientlist[tempnick]->ip,ip,16);
 
        // set the registration timeout for this user
        unsigned long class_regtimeout = 90;
        int class_flood = 0;
+       long class_threshold = 5;
+       long class_sqmax = 262144;      // 256kb
+       long class_rqmax = 4096;        // 4k
 
        for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
        {
@@ -2416,6 +1446,9 @@ void AddClient(int socket, char* host, int port, bool iscached, char* ip)
                        class_regtimeout = (unsigned long)i->registration_timeout;
                        class_flood = i->flood;
                        clientlist[tempnick]->pingmax = i->pingtime;
+                       class_threshold = i->threshold;
+                       class_sqmax = i->sendqmax;
+                       class_rqmax = i->recvqmax;
                        break;
                }
        }
@@ -2423,6 +1456,9 @@ void AddClient(int socket, char* host, int port, bool iscached, char* ip)
        clientlist[tempnick]->nping = TIME+clientlist[tempnick]->pingmax+dns_timeout;
        clientlist[tempnick]->timeout = TIME+class_regtimeout;
        clientlist[tempnick]->flood = class_flood;
+       clientlist[tempnick]->threshold = class_threshold;
+       clientlist[tempnick]->sendqmax = class_sqmax;
+       clientlist[tempnick]->recvqmax = class_rqmax;
 
        for (int i = 0; i < MAXCHANS; i++)
        {
@@ -2431,7 +1467,23 @@ void AddClient(int socket, char* host, int port, bool iscached, char* ip)
        }
 
        if (clientlist.size() == MAXCLIENTS)
+       {
                kill_link(clientlist[tempnick],"No more connections allowed in this class");
+               return;
+       }
+
+       // this is done as a safety check to keep the file descriptors within range of fd_ref_table.
+       // its a pretty big but for the moment valid assumption:
+       // file descriptors are handed out starting at 0, and are recycled as theyre freed.
+       // therefore if there is ever an fd over 65535, 65536 clients must be connected to the
+       // irc server at once (or the irc server otherwise initiating this many connections, files etc)
+       // which for the time being is a physical impossibility (even the largest networks dont have more
+       // than about 10,000 users on ONE server!)
+       if (socket > 65534)
+       {
+               kill_link(clientlist[tempnick],"Server is full");
+               return;
+       }
                
 
         char* e = matches_exception(ip);
@@ -2443,139 +1495,39 @@ void AddClient(int socket, char* host, int port, bool iscached, char* ip)
                        char reason[MAXBUF];
                        snprintf(reason,MAXBUF,"Z-Lined: %s",r);
                        kill_link(clientlist[tempnick],reason);
+                       return;
                }
        }
-}
-
-// this function counts all users connected, wether they are registered or NOT.
-int usercnt(void)
-{
-       return clientlist.size();
-}
-
-// this counts only registered users, so that the percentages in /MAP don't mess up when users are sitting in an unregistered state
-int registered_usercount(void)
-{
-        int c = 0;
-        for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
-        {
-                if ((i->second->fd) && (isnick(i->second->nick))) c++;
-        }
-        return c;
-}
-
-int usercount_invisible(void)
-{
-       int c = 0;
-
-       for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
-       {
-               if ((i->second->fd) && (isnick(i->second->nick)) && (strchr(i->second->modes,'i'))) c++;
-       }
-       return c;
-}
-
-int usercount_opers(void)
-{
-       int c = 0;
-
-       for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
-       {
-               if ((i->second->fd) && (isnick(i->second->nick)) && (strchr(i->second->modes,'o'))) c++;
-       }
-       return c;
-}
-
-int usercount_unknown(void)
-{
-       int c = 0;
-
-       for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
-       {
-               if ((i->second->fd) && (i->second->registered != 7))
-                       c++;
-       }
-       return c;
-}
-
-long chancount(void)
-{
-       return chanlist.size();
-}
-
-long count_servs(void)
-{
-       int c = 0;
-        for (int i = 0; i < 32; i++)
-        {
-                if (me[i] != NULL)
-                {
-                        for (vector<ircd_connector>::iterator j = me[i]->connectors.begin(); j != me[i]->connectors.end(); j++)
-                        {
-                                if (strcasecmp(j->GetServerName().c_str(),ServerName))
-                                {
-                                       c++;
-                                }
-                        }
-                }
-        }
-       return c;
-}
+       fd_ref_table[socket] = clientlist[tempnick];
 
-long servercount(void)
-{
-       return count_servs()+1;
-}
-
-long local_count()
-{
-       int c = 0;
-       for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
+#ifdef USE_EPOLL
+       struct epoll_event ev;
+       log(DEBUG,"epoll: Adduser to events, ep=%d socket=%d",ep,socket);
+       ev.events = EPOLLIN | EPOLLET;
+       ev.data.fd = socket;
+       int i = epoll_ctl(ep, EPOLL_CTL_ADD, socket, &ev);
+       if (i < 0)
        {
-               if ((i->second->fd) && (isnick(i->second->nick)) && (!strcasecmp(i->second->server,ServerName))) c++;
+               log(DEBUG,"epoll: List insertion failure!");
        }
-       return c;
-}
-
-
-void ShowMOTD(userrec *user)
-{
-        std::string WholeMOTD = "";
-        if (!MOTD.size())
-        {
-                WriteServ(user->fd,"422 %s :Message of the day file is missing.",user->nick);
-                return;
-        }
-        WholeMOTD = std::string(":") + std::string(ServerName) + std::string(" 375 ") + std::string(user->nick) + std::string(" :- ") + std::string(ServerName) + " message of the day\r\n";
-        for (int i = 0; i != MOTD.size(); i++)
+#endif
+#ifdef USE_KQUEUE
+       struct kevent ke;
+       log(DEBUG,"kqueue: Add user to events, kq=%d socket=%d",kq,socket);
+       EV_SET(&ke, socket, EVFILT_READ, EV_ADD, 0, 0, NULL);
+        int i = kevent(kq, &ke, 1, 0, 0, NULL);
+        if (i == -1)
         {
-                WholeMOTD = WholeMOTD + std::string(":") + std::string(ServerName) + std::string(" 372 ") + std::string(user->nick) + std::string(" :- ") + MOTD[i] + std::string("\r\n");
+                log(DEBUG,"kqueue: List insertion failure!");
         }
-        WholeMOTD = WholeMOTD + std::string(":") + std::string(ServerName) + std::string(" 376 ") + std::string(user->nick) + std::string(" :End of message of the day.\r\n");
-        // only one write operation
-        send(user->fd,WholeMOTD.c_str(),WholeMOTD.length(),0);
 
-}
-
-void ShowRULES(userrec *user)
-{
-       if (!RULES.size())
-       {
-               WriteServ(user->fd,"NOTICE %s :Rules file is missing.",user->nick);
-               return;
-       }
-       WriteServ(user->fd,"NOTICE %s :%s rules",user->nick,ServerName);
-       for (int i = 0; i != RULES.size(); i++)
-       {
-                               WriteServ(user->fd,"NOTICE %s :%s",user->nick,RULES[i].c_str());
-       }
-       WriteServ(user->fd,"NOTICE %s :End of %s rules.",user->nick,ServerName);
+#endif
 }
 
 /* shows the message of the day, and any other on-logon stuff */
 void FullConnectUser(userrec* user)
 {
-        user->registered = 7;
+       statsConnects++;
         user->idle_lastmsg = TIME;
         log(DEBUG,"ConnectUser: %s",user->nick);
 
@@ -2613,6 +1565,9 @@ void FullConnectUser(userrec* user)
                }
        }
 
+       // fix by brain: move this below the xline checks to prevent spurious quits going onto the net that dont belong
+       user->registered = 7;
+
         WriteServ(user->fd,"NOTICE Auth :Welcome to \002%s\002!",Network);
         WriteServ(user->fd,"001 %s :Welcome to the %s IRC Network %s!%s@%s",user->nick,Network,user->nick,user->ident,user->host);
         WriteServ(user->fd,"002 %s :Your host is %s, running version %s",user->nick,ServerName,VERSION);
@@ -2623,7 +1578,7 @@ void FullConnectUser(userrec* user)
         v << "MESHED WALLCHOPS MODES=13 CHANTYPES=# PREFIX=(ohv)@%+ MAP SAFELIST MAXCHANNELS=" << MAXCHANS;
         v << " MAXBANS=60 NICKLEN=" << NICKMAX;
         v << " TOPICLEN=307 KICKLEN=307 MAXTARGETS=20 AWAYLEN=307 CHANMODES=ohvb,k,l,psmnti NETWORK=";
-        v << std::string(Network);
+        v << Network;
         std::string data005 = v.str();
         FOREACH_MOD On005Numeric(data005);
         // anfl @ #ratbox, efnet reminded me that according to the RFC this cant contain more than 13 tokens per line...
@@ -2645,29 +1600,18 @@ void FullConnectUser(userrec* user)
                 }
         }
         ShowMOTD(user);
-        FOREACH_MOD OnUserConnect(user);
-        WriteOpers("*** Client connecting on port %lu: %s!%s@%s [%s]",(unsigned long)user->port,user->nick,user->ident,user->host,user->ip);
 
         char buffer[MAXBUF];
        snprintf(buffer,MAXBUF,"N %lu %s %s %s %s +%s %s %s :%s",(unsigned long)user->age,user->nick,user->host,user->dhost,user->ident,user->modes,user->ip,ServerName,user->fullname);
         NetSendToAll(buffer);
-}
-
 
-// this returns 1 when all modules are satisfied that the user should be allowed onto the irc server
-// (until this returns true, a user will block in the waiting state, waiting to connect up to the
-// registration timeout maximum seconds)
-bool AllModulesReportReady(userrec* user)
-{
-       for (int i = 0; i <= MODCOUNT; i++)
-       {
-               int res = modules[i]->OnCheckReady(user);
-                       if (!res)
-                               return false;
-       }
-       return true;
+       // fix by brain: these should be AFTER the N token, so other servers know what the HELL we're on about... :)
+       FOREACH_MOD OnUserConnect(user);
+       FOREACH_MOD OnGlobalConnect(user);
+       WriteOpers("*** Client connecting on port %lu: %s!%s@%s [%s]",(unsigned long)user->port,user->nick,user->ident,user->host,user->ip);
 }
 
+
 /* shows the message of the day, and any other on-logon stuff */
 void ConnectUser(userrec *user)
 {
@@ -2676,20 +1620,88 @@ void ConnectUser(userrec *user)
        {
                FullConnectUser(user);
        }
-}
-
-void handle_version(char **parameters, int pcnt, userrec *user)
-{
-       char Revision[] = "$Revision$";
-
-       char *s1 = Revision;
-       char *savept;
-       char *v2 = strtok_r(s1," ",&savept);
-       s1 = savept;
-       v2 = strtok_r(s1," ",&savept);
-       s1 = savept;
-       
-       WriteServ(user->fd,"351 %s :%s Rev. %s %s :%s (O=%lu)",user->nick,VERSION,v2,ServerName,SYSTEM,(unsigned long)OPTIMISATION);
+}
+
+std::string GetVersionString()
+{
+        char Revision[] = "$Revision$";
+       char versiondata[MAXBUF];
+        char *s1 = Revision;
+        char *savept;
+        char *v2 = strtok_r(s1," ",&savept);
+        s1 = savept;
+        v2 = strtok_r(s1," ",&savept);
+        s1 = savept;
+#ifdef USE_KQUEUE
+       char socketengine[] = "kqueue";
+#endif
+#ifdef USE_SELECT
+       char socketengine[] = "select";
+#endif
+#ifdef USE_EPOLL
+       char socketengine[] = "epoll";
+#endif
+       snprintf(versiondata,MAXBUF,"%s Rev. %s %s :%s (O=%lu) [SE=%s]",VERSION,v2,ServerName,SYSTEM,(unsigned long)OPTIMISATION,socketengine);
+       return versiondata;
+}
+
+void handle_version(char **parameters, int pcnt, userrec *user)
+{
+       if (!pcnt)
+       {
+               WriteServ(user->fd,"351 %s :%s",user->nick,GetVersionString().c_str());
+       }
+       else
+       {
+               if (!strcmp(parameters[0],"*"))
+               {
+                       for (int j = 0; j < 32; j++)
+                       {
+                               if (me[j] != NULL)
+                               {
+                                       for (int x = 0; x < me[j]->connectors.size(); x++)
+                                       {
+                                               WriteServ(user->fd,"351 %s :Server %d:%d (%s): %s",user->nick,j,x,me[j]->connectors[x].GetServerName().c_str(),me[j]->connectors[x].GetVersionString().c_str());
+                                       }
+                               }
+                       }
+                       return;
+               }
+               if (match(ServerName,parameters[0]))
+               {
+                       WriteServ(user->fd,"351 %s :%s",user->nick,GetVersionString().c_str());
+                       return;
+               }
+               bool displayed = false, found = false;
+                for (int j = 0; j < 32; j++)
+                {
+                        if (me[j] != NULL)
+                        {
+                                for (int x = 0; x < me[j]->connectors.size(); x++)
+                                {
+                                        if (match(me[j]->connectors[x].GetServerName().c_str(),parameters[0]))
+                                        {
+                                               found = true;
+                                               if ((me[j]->connectors[x].GetVersionString() != "") && (!displayed))
+                                               {
+                                                       displayed = true;
+                                                       WriteServ(user->fd,"351 %s :%s",user->nick,me[j]->connectors[x].GetVersionString().c_str());
+                                               }
+                                       }
+                               }
+                       }
+               }
+               if ((!displayed) && (found))
+               {
+                       WriteServ(user->fd,"402 %s %s :Server %s has no version information",user->nick,parameters[0],parameters[0]);
+                       return;
+               }
+               if (!found)
+               {
+                       WriteServ(user->fd,"402 %s %s :No such server",user->nick,parameters[0]);
+               }
+       }
+       return;
 }
 
 
@@ -2759,44 +1771,11 @@ void DoSplitEveryone()
                        }
                }
        }
+       has_been_netsplit = true;
 }
 
 
 
-char islast(const char* s)
-{
-       char c = '`';
-       for (int j = 0; j < 32; j++)
-       {
-               if (me[j] != NULL)
-               {
-                       for (int k = 0; k < me[j]->connectors.size(); k++)
-                       {
-                               if (strcasecmp(me[j]->connectors[k].GetServerName().c_str(),s))
-                               {
-                                       c = '|';
-                               }
-                               if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),s))
-                               {
-                                       c = '`';
-                               }
-                       }
-               }
-       }
-       return c;
-}
-
-long map_count(const char* s)
-{
-       int c = 0;
-       for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
-       {
-               if ((i->second->fd) && (isnick(i->second->nick)) && (!strcasecmp(i->second->server,s))) c++;
-       }
-       return c;
-}
-
-
 void force_nickchange(userrec* user,const char* newnick)
 {
        char nick[MAXBUF];
@@ -2806,11 +1785,13 @@ void force_nickchange(userrec* user,const char* newnick)
 
        FOREACH_RESULT(OnUserPreNick(user,newnick));
        if (MOD_RESULT) {
+               statsCollisions++;
                kill_link(user,"Nickname collision");
                return;
        }
        if (matches_qline(newnick))
        {
+               statsCollisions++;
                kill_link(user,"Nickname collision");
                return;
        }
@@ -3017,6 +1998,7 @@ void process_command(userrec *user, char* cmd)
                        {
                                if (strchr("@!\"$%^&*(){}[]_=+;:'#~,<>/?\\|`",command[x]))
                                {
+                                       statsUnknown++;
                                        WriteServ(user->fd,"421 %s %s :Unknown command",user->nick,command);
                                        return;
                                }
@@ -3085,21 +2067,18 @@ void process_command(userrec *user, char* cmd)
                                        }
                                        if ((user->registered == 7) && (!strchr(user->modes,'o')))
                                        {
-                                               char* mycmd;
-                                               char* savept2;
-                                               mycmd = strtok_r(DisabledCommands," ",&savept2);
-                                               while (mycmd)
+                                               std::stringstream dcmds(DisabledCommands);
+                                               while (!dcmds.eof())
                                                {
-                                                       if (!strcasecmp(mycmd,command))
+                                                       std::string thiscmd;
+                                                       dcmds >> thiscmd;
+                                                       if (!strcasecmp(thiscmd.c_str(),command))
                                                        {
                                                                // command is disabled!
                                                                WriteServ(user->fd,"421 %s %s :This command has been disabled.",user->nick,command);
                                                                return;
                                                        }
-                                                       mycmd = strtok_r(NULL," ",&savept2);
                                                }
-        
-
                                        }
                                        if ((user->registered == 7) || (!strncmp(command,"USER",4)) || (!strncmp(command,"NICK",4)) || (!strncmp(command,"PASS",4)))
                                        {
@@ -3109,13 +2088,6 @@ void process_command(userrec *user, char* cmd)
                                                        /* ikky /stats counters */
                                                        if (temp)
                                                        {
-                                                               if (user)
-                                                               {
-                                                                       user->bytes_in += strlen(temp);
-                                                                       user->cmds_in++;
-                                                                       user->bytes_out+=strlen(temp);
-                                                                       user->cmds_out++;
-                                                               }
                                                                cmdlist[i].use_count++;
                                                                cmdlist[i].total_bytes+=strlen(temp);
                                                        }
@@ -3146,26 +2118,11 @@ void process_command(userrec *user, char* cmd)
        }
        if ((!cmd_found) && (user))
        {
+               statsUnknown++;
                WriteServ(user->fd,"421 %s %s :Unknown command",user->nick,command);
        }
 }
 
-
-void createcommand(char* cmd, handlerfunc f, char flags, int minparams,char* source)
-{
-       command_t comm;
-       /* create the command and push it onto the table */     
-       strlcpy(comm.command,cmd,MAXBUF);
-       strlcpy(comm.source,source,MAXBUF);
-       comm.handler_function = f;
-       comm.flags_needed = flags;
-       comm.min_params = minparams;
-       comm.use_count = 0;
-       comm.total_bytes = 0;
-       cmdlist.push_back(comm);
-       log(DEBUG,"Added command %s (%lu parameters)",cmd,(unsigned long)minparams);
-}
-
 bool removecommands(const char* source)
 {
        bool go_again = true;
@@ -3186,61 +2143,6 @@ bool removecommands(const char* source)
        return true;
 }
 
-void SetupCommandTable(void)
-{
-       createcommand("USER",handle_user,0,4,"<core>");
-       createcommand("NICK",handle_nick,0,1,"<core>");
-       createcommand("QUIT",handle_quit,0,0,"<core>");
-       createcommand("VERSION",handle_version,0,0,"<core>");
-       createcommand("PING",handle_ping,0,1,"<core>");
-       createcommand("PONG",handle_pong,0,1,"<core>");
-       createcommand("ADMIN",handle_admin,0,0,"<core>");
-       createcommand("PRIVMSG",handle_privmsg,0,2,"<core>");
-       createcommand("INFO",handle_info,0,0,"<core>");
-       createcommand("TIME",handle_time,0,0,"<core>");
-       createcommand("WHOIS",handle_whois,0,1,"<core>");
-       createcommand("WALLOPS",handle_wallops,'o',1,"<core>");
-       createcommand("NOTICE",handle_notice,0,2,"<core>");
-       createcommand("JOIN",handle_join,0,1,"<core>");
-       createcommand("NAMES",handle_names,0,0,"<core>");
-       createcommand("PART",handle_part,0,1,"<core>");
-       createcommand("KICK",handle_kick,0,2,"<core>");
-       createcommand("MODE",handle_mode,0,1,"<core>");
-       createcommand("TOPIC",handle_topic,0,1,"<core>");
-       createcommand("WHO",handle_who,0,1,"<core>");
-       createcommand("MOTD",handle_motd,0,0,"<core>");
-       createcommand("RULES",handle_rules,0,0,"<core>");
-       createcommand("OPER",handle_oper,0,2,"<core>");
-       createcommand("LIST",handle_list,0,0,"<core>");
-       createcommand("DIE",handle_die,'o',1,"<core>");
-       createcommand("RESTART",handle_restart,'o',1,"<core>");
-       createcommand("KILL",handle_kill,'o',2,"<core>");
-       createcommand("REHASH",handle_rehash,'o',0,"<core>");
-       createcommand("LUSERS",handle_lusers,0,0,"<core>");
-       createcommand("STATS",handle_stats,0,1,"<core>");
-       createcommand("USERHOST",handle_userhost,0,1,"<core>");
-       createcommand("AWAY",handle_away,0,0,"<core>");
-       createcommand("ISON",handle_ison,0,0,"<core>");
-       createcommand("SUMMON",handle_summon,0,0,"<core>");
-       createcommand("USERS",handle_users,0,0,"<core>");
-       createcommand("INVITE",handle_invite,0,2,"<core>");
-       createcommand("PASS",handle_pass,0,1,"<core>");
-       createcommand("TRACE",handle_trace,'o',0,"<core>");
-       createcommand("WHOWAS",handle_whowas,0,1,"<core>");
-       createcommand("CONNECT",handle_connect,'o',1,"<core>");
-       createcommand("SQUIT",handle_squit,'o',0,"<core>");
-       createcommand("MODULES",handle_modules,0,0,"<core>");
-       createcommand("LINKS",handle_links,0,0,"<core>");
-       createcommand("MAP",handle_map,0,0,"<core>");
-       createcommand("KLINE",handle_kline,'o',1,"<core>");
-       createcommand("GLINE",handle_gline,'o',1,"<core>");
-       createcommand("ZLINE",handle_zline,'o',1,"<core>");
-       createcommand("QLINE",handle_qline,'o',1,"<core>");
-       createcommand("ELINE",handle_eline,'o',1,"<core>");
-       createcommand("LOADMODULE",handle_loadmodule,'o',1,"<core>");
-       createcommand("UNLOADMODULE",handle_unloadmodule,'o',1,"<core>");
-       createcommand("SERVER",handle_server,0,0,"<core>");
-}
 
 void process_buffer(const char* cmdbuf,userrec *user)
 {
@@ -3302,12 +2204,13 @@ void DoSync(serverrec* serv, char* tcp_host)
        // send start of sync marker: Y <timestamp>
        // at this point the ircd receiving it starts broadcasting this netburst to all ircds
        // except the ones its receiving it from.
-       snprintf(data,MAXBUF,"Y %lu",(unsigned long)TIME);
+       snprintf(data,MAXBUF,"%s Y %lu",CreateSum().c_str(),(unsigned long)TIME);
        serv->SendPacket(data,tcp_host);
        // send users and channels
 
        NetSendMyRoutingTable();
 
+       // send all routing table and uline voodoo. The ordering of these commands is IMPORTANT!
         for (int j = 0; j < 32; j++)
         {
                 if (me[j] != NULL)
@@ -3316,20 +2219,25 @@ void DoSync(serverrec* serv, char* tcp_host)
                         {
                                 if (is_uline(me[j]->connectors[k].GetServerName().c_str()))
                                 {
-                                        snprintf(data,MAXBUF,"H %s",me[j]->connectors[k].GetServerName().c_str());
+                                        snprintf(data,MAXBUF,"%s H %s",CreateSum().c_str(),me[j]->connectors[k].GetServerName().c_str());
                                         serv->SendPacket(data,tcp_host);
                                 }
                         }
                 }
         }
 
+       // send our version for the remote side to cache
+       snprintf(data,MAXBUF,"%s v %s %s",CreateSum().c_str(),ServerName,GetVersionString().c_str());
+       serv->SendPacket(data,tcp_host);
+
+       // sync the users and channels, give the modules a look-in.
        for (user_hash::iterator u = clientlist.begin(); u != clientlist.end(); u++)
        {
-               snprintf(data,MAXBUF,"N %lu %s %s %s %s +%s %s %s :%s",(unsigned long)u->second->age,u->second->nick,u->second->host,u->second->dhost,u->second->ident,u->second->modes,u->second->ip,u->second->server,u->second->fullname);
+               snprintf(data,MAXBUF,"%s N %lu %s %s %s %s +%s %s %s :%s",CreateSum().c_str(),(unsigned long)u->second->age,u->second->nick,u->second->host,u->second->dhost,u->second->ident,u->second->modes,u->second->ip,u->second->server,u->second->fullname);
                serv->SendPacket(data,tcp_host);
                if (strchr(u->second->modes,'o'))
                {
-                       snprintf(data,MAXBUF,"| %s %s",u->second->nick,u->second->oper);
+                       snprintf(data,MAXBUF,"%s | %s %s",CreateSum().c_str(),u->second->nick,u->second->oper);
                        serv->SendPacket(data,tcp_host);
                }
                for (int i = 0; i <= MODCOUNT; i++)
@@ -3337,14 +2245,14 @@ void DoSync(serverrec* serv, char* tcp_host)
                        string_list l = modules[i]->OnUserSync(u->second);
                        for (int j = 0; j < l.size(); j++)
                        {
-                               strlcpy(data,l[j].c_str(),MAXBUF);
+                               snprintf(data,MAXBUF,"%s %s",CreateSum().c_str(),l[j].c_str());
                                serv->SendPacket(data,tcp_host);
                        }
                }
-               char* chl = chlist(u->second);
+               char* chl = chlist(u->second,u->second);
                if (strcmp(chl,""))
                {
-                       snprintf(data,MAXBUF,"J %s %s",u->second->nick,chl);
+                       snprintf(data,MAXBUF,"%s J %s %s",CreateSum().c_str(),u->second->nick,chl);
                        serv->SendPacket(data,tcp_host);
                }
        }
@@ -3358,27 +2266,27 @@ void DoSync(serverrec* serv, char* tcp_host)
                        string_list l = modules[i]->OnChannelSync(c->second);
                        for (int j = 0; j < l.size(); j++)
                        {
-                               strlcpy(data,l[j].c_str(),MAXBUF);
+                               snprintf(data,MAXBUF,"%s %s",CreateSum().c_str(),l[j].c_str());
                                serv->SendPacket(data,tcp_host);
                        }
                }
                if (c->second->topic[0])
                {
-                       snprintf(data,MAXBUF,"T %lu %s %s :%s",(unsigned long)c->second->topicset,c->second->setby,c->second->name,c->second->topic);
+                       snprintf(data,MAXBUF,"%s T %lu %s %s :%s",CreateSum().c_str(),(unsigned long)c->second->topicset,c->second->setby,c->second->name,c->second->topic);
                        serv->SendPacket(data,tcp_host);
                }
                // send current banlist
                
                for (BanList::iterator b = c->second->bans.begin(); b != c->second->bans.end(); b++)
                {
-                       snprintf(data,MAXBUF,"M %s +b %s",c->second->name,b->data);
+                       snprintf(data,MAXBUF,"%s M %s +b %s",CreateSum().c_str(),c->second->name,b->data);
                        serv->SendPacket(data,tcp_host);
                }
        }
        // sync global zlines, glines, etc
        sync_xlines(serv,tcp_host);
 
-       snprintf(data,MAXBUF,"F %lu",(unsigned long)TIME);
+       snprintf(data,MAXBUF,"%s F %lu",CreateSum().c_str(),(unsigned long)TIME);
        serv->SendPacket(data,tcp_host);
        log(DEBUG,"Sent sync");
        // ircd sends its serverlist after the end of sync here
@@ -3460,6 +2368,7 @@ void DoSplit(const char* params)
                        }
                }
        }
+       has_been_netsplit = true;
 }
 
 // removes a server. Will NOT remove its users!
@@ -3542,9 +2451,10 @@ void erase_module(int j)
 
 bool UnloadModule(const char* filename)
 {
+       std::string filename_str = filename;
        for (int j = 0; j != module_names.size(); j++)
        {
-               if (module_names[j] == std::string(filename))
+               if (module_names[j] == filename_str)
                {
                        if (modules[j]->GetVersion().Flags & VF_STATIC)
                        {
@@ -3569,57 +2479,31 @@ bool UnloadModule(const char* filename)
        return false;
 }
 
-bool DirValid(char* dirandfile)
-{
-       char work[MAXBUF];
-       strlcpy(work,dirandfile,MAXBUF);
-       int p = strlen(work);
-       // we just want the dir
-       while (strlen(work))
-       {
-               if (work[p] == '/')
-               {
-                       work[p] = '\0';
-                       break;
-               }
-               work[p--] = '\0';
-       }
-       char buffer[MAXBUF], otherdir[MAXBUF];
-       // Get the current working directory
-       if( getcwd( buffer, MAXBUF ) == NULL )
-               return false;
-       chdir(work);
-       if( getcwd( otherdir, MAXBUF ) == NULL )
-               return false;
-       chdir(buffer);
-       if (strlen(otherdir) >= strlen(work))
-       {
-               otherdir[strlen(work)] = '\0';
-               if (!strcmp(otherdir,work))
-               {
-                       return true;
-               }
-               return false;
-       }
-       else return false;
-}
-
 bool LoadModule(const char* filename)
 {
        char modfile[MAXBUF];
+#ifdef STATIC_LINK
+       snprintf(modfile,MAXBUF,"%s",filename);
+#else
        snprintf(modfile,MAXBUF,"%s/%s",ModPath,filename);
+#endif
+       std::string filename_str = filename;
+#ifndef STATIC_LINK
        if (!DirValid(modfile))
        {
                log(DEFAULT,"Module %s is not within the modules directory.",modfile);
                snprintf(MODERR,MAXBUF,"Module %s is not within the modules directory.",modfile);
                return false;
        }
+#endif
        log(DEBUG,"Loading module: %s",modfile);
+#ifndef STATIC_LINK
         if (FileExists(modfile))
         {
+#endif
                for (int j = 0; j < module_names.size(); j++)
                {
-                       if (module_names[j] == std::string(filename))
+                       if (module_names[j] == filename_str)
                        {
                                log(DEFAULT,"Module %s is already loaded, cannot load a module twice!",modfile);
                                snprintf(MODERR,MAXBUF,"Module already loaded");
@@ -3649,6 +2533,7 @@ bool LoadModule(const char* filename)
                        snprintf(MODERR,MAXBUF,"Factory function failed!");
                        return false;
                 }
+#ifndef STATIC_LINK
         }
         else
         {
@@ -3656,11 +2541,32 @@ bool LoadModule(const char* filename)
                snprintf(MODERR,MAXBUF,"Module file could not be found");
                return false;
         }
+#endif
        MODCOUNT++;
        return true;
 }
 
-int InspIRCd(void)
+
+bool GotServer(std::string name)
+{
+        for (int j = 0; j < 32; j++)
+        {
+                if (me[j] != NULL)
+                {
+                        for (int k = 0; k < me[j]->connectors.size(); k++)
+                        {
+                               if (name == me[j]->connectors[k].GetServerName())
+                               {
+                                       return true;
+                               }
+                        }
+                }
+        }
+       return false;
+}
+
+
+int InspIRCd(char** argv, int argc)
 {
        struct sockaddr_in client,server;
        char addrs[MAXBUF][255];
@@ -3672,13 +2578,20 @@ int InspIRCd(void)
        fd_set selectFds;
        timeval tv;
 
-       log_file = fopen("ircd.log","a+");
+       std::string logpath = GetFullProgDir(argv,argc) + "/ircd.log";
+       log_file = fopen(logpath.c_str(),"a+");
        if (!log_file)
        {
-               printf("ERROR: Could not write to logfile ircd.log, bailing!\n\n");
+               printf("ERROR: Could not write to logfile %s, bailing!\n\n",logpath.c_str());
                Exit(ERROR);
        }
 
+#ifdef IS_CYGWIN
+       printf("Logging to ircd.log...\n");
+#else
+       printf("Logging to %s...\n",logpath.c_str());
+#endif
+
        log(DEFAULT,"$Id$");
        if (geteuid() == 0)
        {
@@ -3698,6 +2611,8 @@ int InspIRCd(void)
        }  
        log(DEBUG,"InspIRCd: startup: read config");
 
+       AddServerName(ServerName);
+
        int clientportcount = 0, serverportcount = 0;
 
        for (count = 0; count < ConfValueEnum("bind",&config_f); count++)
@@ -3735,9 +2650,9 @@ int InspIRCd(void)
                log(DEBUG,"InspIRCd: startup: read binding %s:%s [%s] from config",Addr,configToken, Type);
        }
        portCount = clientportcount;
-       UDPportCount = serverportcount;
+       SERVERportCount = serverportcount;
          
-       log(DEBUG,"InspIRCd: startup: read %lu total client ports and %lu total server ports",(unsigned long)portCount,(unsigned long)UDPportCount);
+       log(DEBUG,"InspIRCd: startup: read %lu total client ports and %lu total server ports",(unsigned long)portCount,(unsigned long)SERVERportCount);
        log(DEBUG,"InspIRCd: startup: InspIRCd is now starting!");
        
        printf("\n");
@@ -3765,7 +2680,9 @@ int InspIRCd(void)
        WritePID(PID);
          
        /* setup select call */
+#ifndef USE_KQUEUE
        FD_ZERO(&selectFds);
+#endif
        log(DEBUG,"InspIRCd: startup: zero selects");
        log(VERBOSE,"InspIRCd: startup: portCount = %lu", (unsigned long)portCount);
        
@@ -3813,24 +2730,127 @@ int InspIRCd(void)
                 }
         }
 
+       // BUGFIX: We cannot initialize this before forking, as the kqueue data is not inherited by child processes!
+#ifdef USE_KQUEUE
+        kq = kqueue();
+       lkq = kqueue();
+       skq = kqueue();
+        if ((kq == -1) || (lkq == -1) || (skq == -1))
+        {
+                log(DEFAULT,"main: kqueue() failed!");
+                printf("ERROR: could not initialise kqueue event system. Shutting down.\n");
+                Exit(ERROR);
+        }
+#endif
+
+#ifdef USE_EPOLL
+       ep = epoll_create(MAXCLIENTS);
+       lep = epoll_create(32);
+       sep = epoll_create(128);
+       if ((ep == -1) || (lep == -1) || (sep == -1))
+       {
+               log(DEFAULT,"main: epoll_create() failed!");
+               printf("ERROR: could not initialise epoll event system. Shutting down.\n");
+               Exit(ERROR);
+       }
+#endif
+
+#ifdef USE_EPOLL
+       log(DEFAULT,"epoll socket engine is enabled. Filling listen list. boundPortcount=%d",boundPortCount);
+       for (count = 0; count < boundPortCount; count++)
+       {
+               struct epoll_event ev;
+               log(DEBUG,"epoll: Add listening socket to events, ep=%d socket=%d",lep,openSockfd[count]);
+               ev.events = EPOLLIN | EPOLLET;
+               ev.data.fd = openSockfd[count];
+               int i = epoll_ctl(lep, EPOLL_CTL_ADD, openSockfd[count], &ev);
+               if (i < 0)
+               {
+                       log(DEFAULT,"main: add listen ports, epoll_ctl failed!");
+                       printf("ERROR: could not initialise listening sockets in epoll list. Shutting down.\n");
+                       Exit(ERROR);
+               }
+               
+       }
+       for (int t = 0; t != SERVERportCount; t++)
+       {
+               struct epoll_event ev;
+               log(DEBUG,"epoll: Add listening server socket to events, ep=%d socket=%d",sep,me[t]->fd);
+               ev.events = EPOLLIN | EPOLLET;
+               ev.data.fd = me[t]->fd;
+               int i = epoll_ctl(sep, EPOLL_CTL_ADD, me[t]->fd, &ev);
+               if (i == -1)
+               {
+                       log(DEFAULT,"main: add server listen ports, epoll_ctl failed!");
+                       printf("ERROR: could not initialise server listening sockets in epoll list. Shutting down.\n");
+                       Exit(ERROR);
+               }
+       }
+#else
+#ifdef USE_KQUEUE
+       log(DEFAULT,"kqueue socket engine is enabled. Filling listen list.");
+       for (count = 0; count < boundPortCount; count++)
+       {
+               struct kevent ke;
+               log(DEBUG,"kqueue: Add listening socket to events, kq=%d socket=%d",lkq,openSockfd[count]);
+               EV_SET(&ke, openSockfd[count], EVFILT_READ, EV_ADD, 0, MaxConn, NULL);
+               int i = kevent(lkq, &ke, 1, 0, 0, NULL);
+               if (i == -1)
+               {
+                       log(DEFAULT,"main: add listen ports to kqueue failed!");
+                       printf("ERROR: could not initialise listening sockets in kqueue. Shutting down.\n");
+                       Exit(ERROR);
+               }
+       }
+        for (int t = 0; t != SERVERportCount; t++)
+        {
+                struct kevent ke;
+                if (me[t])
+                {
+                       log(DEBUG,"kqueue: Add listening SERVER socket to events, kq=%d socket=%d",skq,me[t]->fd);
+                       EV_SET(&ke, me[t]->fd, EVFILT_READ, EV_ADD, 0, MaxConn, NULL);
+                       int i = kevent(skq, &ke, 1, 0, 0, NULL);
+                       if (i == -1)
+                       {
+                               log(DEFAULT,"main: add server listen ports to kqueue failed!");
+                               printf("ERROR: could not initialise listening server sockets in kqueue. Shutting down.\n");
+                               Exit(ERROR);
+                       }
+               }
+        }
+
+
+#else
+       log(DEFAULT,"Using standard select socket engine.");
+#endif
+#endif
+
        WritePID(PID);
 
        length = sizeof (client);
-       char udp_msg[MAXBUF],tcp_host[MAXBUF];
+       char tcp_msg[MAXBUF],tcp_host[MAXBUF],tcp_sum[MAXBUF];
 
+#ifdef USE_KQUEUE
+        struct kevent ke;
+       struct kevent ke_list[33];
+        struct timespec ts;
+#endif
+#ifdef USE_EPOLL
+       struct epoll_event event[33];
+#endif
         fd_set serverfds;
         timeval tvs;
         tvs.tv_usec = 10000L;
         tvs.tv_sec = 0;
        tv.tv_sec = 0;
        tv.tv_usec = 10000L;
-        char data[10240];
+        char data[65536];
        timeval tval;
        fd_set sfd;
         tval.tv_usec = 10000L;
         tval.tv_sec = 0;
         int total_in_this_set = 0;
-       int v = 0;
+       int i = 0, v = 0, j = 0, cycle_iter = 0;
        bool expire_run = false;
          
        /* main loop, this never returns */
@@ -3839,17 +2859,38 @@ int InspIRCd(void)
 #ifdef _POSIX_PRIORITY_SCHEDULING
                sched_yield();
 #endif
-                // poll dns queue
-                dns_poll();
+#ifdef USE_SELECT
                FD_ZERO(&sfd);
-
+#endif
                // we only read time() once per iteration rather than tons of times!
+               OLDTIME = TIME;
                TIME = time(NULL);
 
+               dns_poll();
+
                // *FIX* Instead of closing sockets in kill_link when they receive the ERROR :blah line, we should queue
                // them in a list, then reap the list every second or so.
                if (((TIME % 5) == 0) && (!expire_run))
                {
+                       for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
+                       {
+                               char Link_ServerName[MAXBUF],Link_AConn[MAXBUF];
+                               ConfValue("link","name",i,Link_ServerName,&config_f);
+                               ConfValue("link","autoconnect",i,Link_AConn,&config_f);
+                               if ((Link_AConn[0]) && (!GotServer(Link_ServerName)))
+                               {
+                                       autoconnects::iterator a = autoconns.find(std::string(Link_ServerName));
+                                       if (a != autoconns.end())
+                                       {
+                                               if (TIME > a->second)
+                                               {
+                                                       ConnectServer(Link_ServerName,NULL);
+                                                       a->second = TIME + atoi(Link_AConn);
+                                               }
+                                       }
+                               }
+                       }
+
                        expire_lines();
                        FOREACH_MOD OnBackgroundTimer(TIME);
                        expire_run = true;
@@ -3861,25 +2902,46 @@ int InspIRCd(void)
                // fix by brain - this must be below any manipulation of the hashmap by modules
                user_hash::iterator count2 = clientlist.begin();
 
+#ifdef USE_EPOLL
+               i = epoll_wait(sep, event, 1, EP_DELAY);
+               if (i > 0)
+               {
+                       log(DEBUG,"epoll: Listening server socket event, i=%d, event.data.fd=%d",i,event[0].data.fd);
+                       for (int x = 0; x != SERVERportCount; x++)
+                       {
+                               if ((me[x]) && (event[0].data.fd == me[x]->fd))
+                               {
+#endif
+#ifdef USE_KQUEUE
+               ts.tv_sec = 0;
+               ts.tv_nsec = 30000L;
+               i = kevent(skq, NULL, 0, &ke, 1, &ts);
+               if (i > 0)
+               {
+                       log(DEBUG,"kqueue: Listening server socket event, i=%d, ke.ident=%d",i,ke.ident);
+                       for (int x = 0; x != SERVERportCount; x++)
+                       {
+                               if ((me[x]) && (ke.ident == me[x]->fd))
+                               {
+
+#endif
+#ifdef USE_SELECT
                FD_ZERO(&serverfds);
-               
-               for (int x = 0; x != UDPportCount; x++)
+               for (int x = 0; x != SERVERportCount; x++)
                {
                        if (me[x])
                                FD_SET(me[x]->fd, &serverfds);
                }
-               
-               // serverFds timevals went here
-               
                tvs.tv_usec = 30000L;
                tvs.tv_sec = 0;
-               int servresult = select(32767, &serverfds, NULL, NULL, &tvs);
+               int servresult = select(FD_SETSIZE, &serverfds, NULL, NULL, &tvs);
                if (servresult > 0)
                {
-                       for (int x = 0; x != UDPportCount; x++)
+                       for (int x = 0; x != SERVERportCount; x++)
                        {
                                if ((me[x]) && (FD_ISSET (me[x]->fd, &serverfds)))
                                {
+#endif
                                        char remotehost[MAXBUF],resolved[MAXBUF];
                                        length = sizeof (client);
                                        incomingSockfd = accept (me[x]->fd, (sockaddr *) &client, &length);
@@ -3898,47 +2960,61 @@ int InspIRCd(void)
                        }
                }
      
-               for (int x = 0; x < UDPportCount; x++)
+               std::deque<std::string> msgs;
+               std::deque<std::string> sums;
+               for (int x = 0; x < SERVERportCount; x++)
                {
-                       std::deque<std::string> msgs;
+                       if (me[x])
+                               me[x]->FlushWriteBuffers();
+                       sums.clear();
                        msgs.clear();
-                       if ((me[x]) && (me[x]->RecvPacket(msgs, tcp_host)))
+                       while ((me[x]) && (me[x]->RecvPacket(msgs, tcp_host, sums))) // returns 0 or more lines (can be multiple lines!)
                        {
+                               has_been_netsplit = false;
                                for (int ctr = 0; ctr < msgs.size(); ctr++)
                                {
-                                       strlcpy(udp_msg,msgs[ctr].c_str(),MAXBUF);
-                                       log(DEBUG,"Processing: %s",udp_msg);
-                                       if (!udp_msg[0])
-                                       {
+                                       strlcpy(tcp_msg,msgs[ctr].c_str(),MAXBUF);
+                                       strlcpy(tcp_sum,sums[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) && (udp_msg[0] != 'Y') && (udp_msg[0] != 'X') && (udp_msg[0] != 'F'))) || (is_uline(tcp_host)))
+                                       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 ((udp_msg[0] != 'Y') && (udp_msg[0] != 'X') && (udp_msg[0] != 'F'))
+                                                       if ((tcp_msg[0] != 'Y') && (tcp_msg[0] != 'X') && (tcp_msg[0] != 'F'))
                                                        {
-                                                               NetSendToAllExcept(tcp_host,udp_msg);
+                                                               NetSendToAllExcept_WithSum(tcp_host,tcp_msg,tcp_sum);
                                                        }
                                                }
                                                else
-                                                       NetSendToAllExcept(tcp_host,udp_msg);
+                                                       NetSendToAllExcept_WithSum(tcp_host,tcp_msg,tcp_sum);
                                        }
-                                       std::string msg = udp_msg;
+                                       std::string msg = tcp_msg;
                                        FOREACH_MOD OnPacketReceive(msg,tcp_host);
-                                       strlcpy(udp_msg,msg.c_str(),MAXBUF);
-                                       handle_link_packet(udp_msg, tcp_host, me[x]);
+                                       strlcpy(tcp_msg,msg.c_str(),MAXBUF);
+                                       if (me[x])
+                                               handle_link_packet(tcp_msg, tcp_host, me[x], tcp_sum);
+                                       if (!me[x]->FindHost(tcp_host))
+                                       {
+                                               log(DEBUG,"Connector gone, bailing!");
+                                               goto label;
+                                       }
                                }
                                goto label;
                        }
                }
        
-
        while (count2 != clientlist.end())
        {
+#ifdef USE_SELECT
                FD_ZERO(&sfd);
+#endif
+
                total_in_this_set = 0;
 
                user_hash::iterator xcount = count2;
@@ -3946,56 +3022,82 @@ int InspIRCd(void)
 
                if (count2 == clientlist.end()) break;
 
+               userrec* curr = NULL;
+
                if (count2->second)
-               if (count2->second->fd != 0)
+                       curr = count2->second;
+
+               if ((long)curr == -1)
+                       goto label;
+
+               if ((curr) && (curr->fd != 0))
                {
+#ifdef _POSIX_PRIORITY_SCHEDULING
+        sched_yield();
+#endif
                        // assemble up to 64 sockets into an fd_set
                        // to implement a pooling mechanism.
                        //
                        // This should be up to 64x faster than the
                        // old implementation.
-                       while (total_in_this_set < 64)
+#ifdef USE_SELECT
+                       while (total_in_this_set < 1024)
                        {
                                if (count2 != clientlist.end())
                                {
+                                       curr = count2->second;
+                                       if ((long)curr == -1)
+                                               goto label;
+                                       int currfd = curr->fd;
                                        // we don't check the state of remote users.
-                                       if ((count2->second->fd != -1) && (count2->second->fd != FD_MAGIC_NUMBER))
+                                       if ((currfd != -1) && (currfd != FD_MAGIC_NUMBER))
                                        {
-                                               FD_SET (count2->second->fd, &sfd);
+                                               curr->FlushWriteBuf();
+                                               if (curr->GetWriteError() != "")
+                                               {
+                                                       log(DEBUG,"InspIRCd: write error: %s",curr->GetWriteError().c_str());
+                                                       kill_link(curr,curr->GetWriteError().c_str());
+                                                       goto label;
+                                               }
+
+                                               FD_SET (curr->fd, &sfd);
 
                                                // registration timeout -- didnt send USER/NICK/HOST in the time specified in
                                                // their connection class.
-                                               if ((TIME > count2->second->timeout) && (count2->second->registered != 7)) 
+                                               if ((TIME > curr->timeout) && (curr->registered != 7)) 
                                                {
-                                                       log(DEBUG,"InspIRCd: registration timeout: %s",count2->second->nick);
-                                                       kill_link(count2->second,"Registration timeout");
+                                                       log(DEBUG,"InspIRCd: registration timeout: %s",curr->nick);
+                                                       kill_link(curr,"Registration timeout");
                                                        goto label;
                                                }
-                                               if ((TIME > count2->second->signon) && (count2->second->registered == 3) && (AllModulesReportReady(count2->second)))
+                                               if ((TIME > curr->signon) && (curr->registered == 3) && (AllModulesReportReady(curr)))
                                                {
                                                        log(DEBUG,"signon exceed, registered=3, and modules ready, OK");
-                                                       count2->second->dns_done = true;
-                                                       FullConnectUser(count2->second);
-                                                       goto label;
+                                                       curr->dns_done = true;
+                                                       statsDnsBad++;
+                                                       FullConnectUser(curr);
+                                                        if (fd_ref_table[currfd] != curr) // something changed, bail pronto
+                                                               goto label;                                                        
                                                }
-                                               if ((count2->second->dns_done) && (count2->second->registered == 3) && (AllModulesReportReady(count2->second))) // both NICK and USER... and DNS
+                                               if ((curr->dns_done) && (curr->registered == 3) && (AllModulesReportReady(curr))) // both NICK and USER... and DNS
                                                {
                                                        log(DEBUG,"dns done, registered=3, and modules ready, OK");
-                                                       FullConnectUser(count2->second);
-                                                       goto label;
+                                                       FullConnectUser(curr);
+                                                        if (fd_ref_table[currfd] != curr) // something changed, bail pronto
+                                                                goto label;
                                                }
-                                               if ((TIME > count2->second->nping) && (isnick(count2->second->nick)) && (count2->second->registered == 7))
+                                               if ((TIME > curr->nping) && (isnick(curr->nick)) && (curr->registered == 7))
                                                {
-                                                       if ((!count2->second->lastping) && (count2->second->registered == 7))
+                                                       if ((!curr->lastping) && (curr->registered == 7))
                                                        {
-                                                               log(DEBUG,"InspIRCd: ping timeout: %s",count2->second->nick);
-                                                               kill_link(count2->second,"Ping timeout");
+                                                               log(DEBUG,"InspIRCd: ping timeout: %s",curr->nick);
+                                                               kill_link(curr,"Ping timeout");
                                                                goto label;
                                                        }
-                                                       Write(count2->second->fd,"PING :%s",ServerName);
-                                                       log(DEBUG,"InspIRCd: pinging: %s",count2->second->nick);
-                                                       count2->second->lastping = 0;
-                                                       count2->second->nping = TIME+count2->second->pingmax;   // was hard coded to 120
+                                                       Write(curr->fd,"PING :%s",ServerName);
+                                                       log(DEBUG,"InspIRCd: pinging: %s",curr->nick);
+                                                       curr->lastping = 0;
+                                                       curr->nping = TIME+curr->pingmax;       // was hard coded to 120
                                                }
                                        }
                                        count2++;
@@ -4003,34 +3105,143 @@ int InspIRCd(void)
                                }
                                else break;
                        }
-   
                        endingiter = count2;
                                count2 = xcount; // roll back to where we were
-        
-                       v = 0;
+#else
+                       // KQUEUE and EPOLL: We don't go through a loop to fill the fd_set so instead we must manually do this loop every now and again.
+                       // TODO: We dont need to do all this EVERY loop iteration, tone down the visits to this if we're using kqueue.
+                       cycle_iter++;
+                       if (cycle_iter > 20) while (count2 != clientlist.end())
+                       {
+                               cycle_iter = 0;
+                               if (count2 != clientlist.end())
+                               {
+                                       curr = count2->second;
+                                        if ((long)curr == -1)
+                                                goto label;
+                                       int currfd = curr->fd;
+                                       // we don't check the state of remote users.
+                                       if ((currfd != -1) && (currfd != FD_MAGIC_NUMBER))
+                                       {
 
-                       // tvals defined here
+                                                curr->FlushWriteBuf();
+                                                if (curr->GetWriteError() != "")
+                                                {
+                                                        log(DEBUG,"InspIRCd: write error: %s",curr->GetWriteError().c_str());
+                                                        kill_link(curr,curr->GetWriteError().c_str());
+                                                        goto label;
+                                                }
+
+                                               // registration timeout -- didnt send USER/NICK/HOST in the time specified in
+                                               // their connection class.
+                                               if ((TIME > curr->timeout) && (curr->registered != 7))
+                                               {
+                                                       log(DEBUG,"InspIRCd: registration timeout: %s",curr->nick);
+                                                       kill_link(curr,"Registration timeout");
+                                                       goto label;
 
+                                               }
+                                               if ((TIME > curr->signon) && (curr->registered == 3) && (AllModulesReportReady(curr)))
+                                               {
+                                                       log(DEBUG,"signon exceed, registered=3, and modules ready, OK: %d %d",TIME,curr->signon);
+                                                       curr->dns_done = true;
+                                                       statsDnsBad++;
+                                                       FullConnectUser(curr);
+                                                        if (fd_ref_table[currfd] != curr) // something changed, bail pronto
+                                                                goto label;
+                                               }
+                                               if ((curr->dns_done) && (curr->registered == 3) && (AllModulesReportReady(curr)))
+                                               {
+                                                       log(DEBUG,"dns done, registered=3, and modules ready, OK");
+                                                       FullConnectUser(curr);
+                                                        if (fd_ref_table[currfd] != curr) // something changed, bail pronto
+                                                                goto label;
+                                               }
+                                               if ((TIME > curr->nping) && (isnick(curr->nick)) && (curr->registered == 7))
+                                               {
+                                                       if ((!curr->lastping) && (curr->registered == 7))
+                                                       {
+                                                               log(DEBUG,"InspIRCd: ping timeout: %s",curr->nick);
+                                                               kill_link(curr,"Ping timeout");
+                                                               goto label;
+                                                       }
+                                                       Write(curr->fd,"PING :%s",ServerName);
+                                                       log(DEBUG,"InspIRCd: pinging: %s",curr->nick);
+                                                       curr->lastping = 0;
+                                                       curr->nping = TIME+curr->pingmax;       // was hard coded to 120
+                                               }
+                                       }
+                               }
+                               else break;
+                               count2++;
+                       }
+                       // increment the counter right to the end of the list, as kqueue processes everything in one go
+#endif
+        
+                       v = 0;
+#ifdef USE_EPOLL
+                       int i = epoll_wait(ep, event, 1, 5);
+                       if (i > 0)
+                       {
+                               log(DEBUG,"epoll_wait call: ep=%d, i=%d",ep,i);
+                               // EPOLL: we asked epoll_wait for ONE fd which is ready. Do something.
+                               userrec* cu = fd_ref_table[event[0].data.fd];
+#endif
+#ifdef USE_KQUEUE
+                       ts.tv_sec = 0;
+                       ts.tv_nsec = 1000L;
+                       // for now, we only read 1 event. We could read soooo many more :)
+                       int i = kevent(kq, NULL, 0, &ke, 1, &ts);
+                       if (i > 0)
+                       {
+                               log(DEBUG,"kevent call: kq=%d, i=%d",kq,i);
+                               // KQUEUE: kevent gives us ONE fd which is ready to have something done to it. Do something to it.
+                               userrec* cu = fd_ref_table[ke.ident];
+#endif
+#ifdef USE_SELECT
+                       tval.tv_sec = 0;
                        tval.tv_usec = 1000L;
-                       selectResult2 = select(65535, &sfd, NULL, NULL, &tval);
-                       
+                       selectResult2 = select(FD_SETSIZE, &sfd, NULL, NULL, &tval);
                        // now loop through all of the items in this pool if any are waiting
-                       //if (selectResult2 > 0)
+                       if ((selectResult2 > 0) && (xcount != clientlist.end()))
                        for (user_hash::iterator count2a = xcount; count2a != endingiter; count2a++)
                        {
+                               // SELECT: we have to iterate...
+                               if (count2a == clientlist.end())
+                                       break;
+                               userrec* cu = count2a->second;
+#endif
 
 #ifdef _POSIX_PRIORITY_SCHEDULING
                                sched_yield();
 #endif
-
                                result = EAGAIN;
-                               if ((count2a->second->fd != FD_MAGIC_NUMBER) && (count2a->second->fd != -1) && (FD_ISSET (count2a->second->fd, &sfd)))
+#ifdef USE_EPOLL
+                               // EPOLL: We already know we have a valid FD. No checks needed.
+                               if ((cu->fd != FD_MAGIC_NUMBER) && (cu->fd != -1))
+#endif
+#ifdef USE_KQUEUE
+                               // KQUEUE: We already know we have a valid FD. No checks needed.
+                               if ((cu->fd != FD_MAGIC_NUMBER) && (cu->fd != -1))
+#endif
+#ifdef USE_SELECT
+                               // SELECT: We don't know if our FD is valid.
+                               if ((cu->fd != FD_MAGIC_NUMBER) && (cu->fd != -1) && (FD_ISSET (cu->fd, &sfd)))
+#endif
                                {
-                                       memset(data, 0, 10240);
-                                       result = read(count2a->second->fd, data, 10240);
-                                       
+                                       log(DEBUG,"Data waiting on socket %d",cu->fd);
+                                       int MOD_RESULT = 0;
+                                       int result2 = 0;
+                                       FOREACH_RESULT(OnRawSocketRead(cu->fd,data,65535,result2));
+                                       if (!MOD_RESULT)
+                                       {
+                                               result = cu->ReadData(data, 65535);
+                                       }
+                                       else result = result2;
+                                       log(DEBUG,"Read result: %d",result);
                                        if (result)
                                        {
+                                               statsRecv += result;
                                                // perform a check on the raw buffer as an array (not a string!) to remove
                                                // characters 0 and 7 which are illegal in the RFC - replace them with spaces.
                                                // hopefully this should stop even more people whining about "Unknown command: *"
@@ -4039,64 +3250,112 @@ int InspIRCd(void)
                                                        if ((data[checker] == 0) || (data[checker] == 7))
                                                                data[checker] = ' ';
                                                }
-                                               userrec* current = count2a->second;
+                                               if (result > 0)
+                                                       data[result] = '\0';
+                                               userrec* current = cu;
                                                int currfd = current->fd;
-                                               char* l = strtok(data,"\n");
                                                int floodlines = 0;
-                                               while (l)
+                                               // add the data to the users buffer
+                                               if (result > 0)
+                                               if (!current->AddBuffer(data))
+                                               {
+                                                       // AddBuffer returned false, theres too much data in the user's buffer and theyre up to no good.
+                                                        if (current->registered == 7)
+                                                        {
+                                                                kill_link(current,"RecvQ exceeded");
+                                                        }
+                                                        else
+                                                        {
+                                                                WriteOpers("*** Excess flood from %s",current->ip);
+                                                                log(DEFAULT,"Excess flood from: %s",current->ip);
+                                                                add_zline(120,ServerName,"Flood from unregistered connection",current->ip);
+                                                                apply_lines();
+                                                        }
+                                                        goto label;
+                                               }
+                                               if (current->recvq.length() > NetBufferSize)
+                                               {
+                                                       if (current->registered == 7)
+                                                       {
+                                                               kill_link(current,"RecvQ exceeded");
+                                                       }
+                                                       else
+                                                       {
+                                                               WriteOpers("*** Excess flood from %s",current->ip);
+                                                               log(DEFAULT,"Excess flood from: %s",current->ip);
+                                                               add_zline(120,ServerName,"Flood from unregistered connection",current->ip);
+                                                               apply_lines();
+                                                       }
+                                                       goto label;
+                                               }
+                                               // while there are complete lines to process...
+                                               while (current->BufferIsReady())
                                                {
                                                        floodlines++;
-                                                       if ((floodlines > current->flood) && (current->flood != 0))
+                                                       if (TIME > current->reset_due)
+                                                       {
+                                                               current->reset_due = TIME + current->threshold;
+                                                               current->lines_in = 0;
+                                                       }
+                                                       current->lines_in++;
+                                                       if (current->lines_in > current->flood)
                                                        {
-                                                               log(DEFAULT,"Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
-                                                               WriteOpers("*** Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
+                                                               log(DEFAULT,"Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
+                                                               WriteOpers("*** Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
                                                                kill_link(current,"Excess flood");
                                                                goto label;
                                                        }
-                                                       char sanitized[NetBufferSize];
-                                                       memset(sanitized, 0, NetBufferSize);
-                                                       int ptt = 0;
-                                                       for (int pt = 0; pt < strlen(l); pt++)
+                                                       if ((floodlines > current->flood) && (current->flood != 0))
                                                        {
-                                                               if (l[pt] != '\r')
+                                                               if (current->registered == 7)
+                                                               {
+                                                                       log(DEFAULT,"Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
+                                                                       WriteOpers("*** Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
+                                                                       kill_link(current,"Excess flood");
+                                                               }
+                                                               else
                                                                {
-                                                                       sanitized[ptt++] = l[pt];
+                                                                       add_zline(120,ServerName,"Flood from unregistered connection",current->ip);
+                                                                       apply_lines();
                                                                }
+                                                               goto label;
+                                                       }
+                                                       char sanitized[MAXBUF];
+                                                       // use GetBuffer to copy single lines into the sanitized string
+                                                       std::string single_line = current->GetBuffer();
+                                                        current->bytes_in += single_line.length();
+                                                        current->cmds_in++;
+                                                       if (single_line.length()>512)
+                                                       {
+                                                               log(DEFAULT,"Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
+                                                               WriteOpers("*** Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
+                                                               kill_link(current,"Excess flood");
+                                                               goto label;
                                                        }
-                                                       sanitized[ptt] = '\0';
+                                                       strlcpy(sanitized,single_line.c_str(),MAXBUF);
                                                        if (*sanitized)
                                                        {
-
-
+                                                               userrec* old_comp = fd_ref_table[currfd];
                                                                // we're gonna re-scan to check if the nick is gone, after every
                                                                // command - if it has, we're gonna bail
-                                                               bool find_again = false;
                                                                process_buffer(sanitized,current);
-       
-                                                               // look for the user's record in case it's changed
-                                                               for (user_hash::iterator c2 = clientlist.begin(); c2 != clientlist.end(); c2++)
-                                                               {
-                                                                       if (c2->second->fd == currfd)
-                                                                       {
-                                                                               // found again, update pointer
-                                                                               current == c2->second;
-                                                                               find_again = true;
-                                                                               break;
-                                                                       }
-                                                               }
-                                                               if (!find_again)
+                                                               // look for the user's record in case it's changed... if theyve quit,
+                                                               // we cant do anything more with their buffer, so bail.
+                                                               // there used to be an ugly, slow loop here. Now we have a reference
+                                                               // table, life is much easier (and FASTER)
+                                                               userrec* new_comp = fd_ref_table[currfd];
+                                                               if ((currfd < 0) || (!fd_ref_table[currfd]) || (old_comp != new_comp))
                                                                        goto label;
 
                                                        }
-                                                       l = strtok(NULL,"\n");
                                                }
                                                goto label;
                                        }
 
                                        if ((result == -1) && (errno != EAGAIN) && (errno != EINTR))
                                        {
-                                               log(DEBUG,"killing: %s",count2a->second->nick);
-                                               kill_link(count2a->second,strerror(errno));
+                                               log(DEBUG,"killing: %s",cu->nick);
+                                               kill_link(cu,strerror(errno));
                                                goto label;
                                        }
                                }
@@ -4107,14 +3366,18 @@ int InspIRCd(void)
                                else
                                if (result == 0)
                                {
+#ifdef USE_SELECT
                                        if (count2->second)
                                        {
-                                               log(DEBUG,"InspIRCd: Exited: %s",count2a->second->nick);
-                                               kill_link(count2a->second,"Client exited");
+#endif
+                                               log(DEBUG,"InspIRCd: Exited: %s",cu->nick);
+                                               kill_link(cu,"Client exited");
                                                // must bail here? kill_link removes the hash, corrupting the iterator
                                                log(DEBUG,"Bailing from client exit");
                                                goto label;
+#ifdef USE_SELECT
                                        }
+#endif
                                }
                                else if (result > 0)
                                {
@@ -4131,6 +3394,7 @@ int InspIRCd(void)
         sched_yield();
 #endif
        
+#ifdef USE_SELECT
        // set up select call
        for (count = 0; count < boundPortCount; count++)
        {
@@ -4143,11 +3407,38 @@ int InspIRCd(void)
        /* select is reporting a waiting socket. Poll them all to find out which */
        if (selectResult > 0)
        {
-               char target[MAXBUF], resolved[MAXBUF];
-               for (count = 0; count < boundPortCount; count++)                
+               for (count = 0; count < boundPortCount; count++)
                {
                        if (FD_ISSET (openSockfd[count], &selectFds))
                        {
+#endif
+#ifdef USE_KQUEUE
+       ts.tv_sec = 0;
+       ts.tv_nsec = 30000L;
+       i = kevent(lkq, NULL, 0, ke_list, 32, &ts);
+       if (i > 0) for (j = 0; j < i; j++)
+       {
+               log(DEBUG,"kqueue: Listening socket event, i=%d, ke.ident=%d",i,ke_list[j].ident);
+               // this isnt as efficient as it could be, we could create a reference table
+               // to reference bound ports by fd, but this isnt a big bottleneck as the actual
+               // number of listening ports on the average ircd is a small number (less than 20)
+               // compared to the number of clients (possibly over 2000)
+               for (count = 0; count < boundPortCount; count++)
+               {
+                       if (ke_list[j].ident == openSockfd[count])
+                       {
+#endif
+#ifdef USE_EPOLL
+       i = epoll_wait(lep, event, 32, EP_DELAY);
+       if (i > 0) for (j = 0; j < i; j++)
+       {
+               log(DEBUG,"epoll: Listening socket event, i=%d,events[j].data.fd=%d",i,event[j].data.fd);
+               for (count = 0; count < boundPortCount; count++)
+               {
+                       if (event[j].data.fd == openSockfd[count])
+                       {
+#endif
+                               char target[MAXBUF], resolved[MAXBUF];
                                length = sizeof (client);
                                incomingSockfd = accept (openSockfd[count], (struct sockaddr *) &client, &length);
                              
@@ -4158,13 +3449,15 @@ int InspIRCd(void)
                                {
                                        WriteOpers("*** WARNING: Accept failed on port %lu (%s)",(unsigned long)ports[count],target);
                                        log(DEBUG,"InspIRCd: accept failed: %lu",(unsigned long)ports[count]);
+                                       statsRefused++;
                                }
                                else
                                {
+                                       FOREACH_MOD OnRawSocketAccept(incomingSockfd, resolved, ports[count]);
+                                       statsAccept++;
                                        AddClient(incomingSockfd, resolved, ports[count], false, inet_ntoa (client.sin_addr));
                                        log(DEBUG,"InspIRCd: adding client on port %lu fd=%lu",(unsigned long)ports[count],(unsigned long)incomingSockfd);
                                }
-                               goto label;
                        }
                }
        }
@@ -4172,6 +3465,7 @@ int InspIRCd(void)
        if (0) {};
 #ifdef _POSIX_PRIORITY_SCHEDULING
         sched_yield();
+       sched_yield();
 #endif
 }
 /* not reached */