]> git.netwichtig.de Git - user/henk/code/inspircd.git/blobdiff - src/inspircd.cpp
Removed __single_client_alloc again because gcc devs were smoking crack and removed it
[user/henk/code/inspircd.git] / src / inspircd.cpp
index 1f7487242b6a6640a10fc0c180f99c002c14ebe6..4464be7559dbab30c4a8bd7b1891baceb3f39f51 100644 (file)
@@ -32,7 +32,6 @@ using namespace std;
 #include <sys/event.h>
 #include <sys/time.h>
 #endif
-#include <cstdio>
 #include <time.h>
 #include <string>
 #ifdef GCC3
@@ -43,10 +42,7 @@ 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"
@@ -62,12 +58,8 @@ 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];
@@ -109,80 +101,16 @@ int openSockfd[MAXSOCKS];
 bool nofork = false;
 bool unlimitcore = false;
 
-time_t TIME = time(NULL);
+time_t TIME = time(NULL), OLDTIME = time(NULL);
 
 #ifdef USE_KQUEUE
 int kq, lkq, skq;
 #endif
 
-namespace nspace
-{
-#ifdef GCC34
-        template<> struct hash<in_addr>
-#else
-        template<> struct nspace::hash<in_addr>
-#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
-{
-
-       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);
-       }
-
-};
-
-
-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 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;
 
 // This table references users by file descriptor.
@@ -198,7 +126,7 @@ FILE *log_file;
 
 user_hash clientlist;
 chan_hash chanlist;
-user_hash whowas;
+whowas_hash whowas;
 command_table cmdlist;
 file_cache MOTD;
 file_cache RULES;
@@ -227,8 +155,6 @@ std::stringstream config_f(stringstream::in | stringstream::out);
 
 std::vector<userrec*> all_opers;
 
-static char already_sent[65536];
-
 char lowermap[255];
 
 void AddOper(userrec* user)
@@ -293,71 +219,10 @@ 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],thold[MAXBUF];
+       char AH[MAXBUF],AP[MAXBUF],AF[MAXBUF],DNT[MAXBUF],pfreq[MAXBUF],thold[MAXBUF],sqmax[MAXBUF],rqmax[MAXBUF];
        ConnectClass c;
        std::stringstream errstr;
        
@@ -463,6 +328,8 @@ void ReadConfig(bool bail, userrec* user)
                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);
@@ -474,10 +341,20 @@ void ReadConfig(bool bail, userrec* user)
                        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);
@@ -520,1072 +397,66 @@ void ReadConfig(bool bail, userrec* user)
                for (int count2 = 0; count2 < ConfValueEnum("module",&config_f); count2++)
                {
                        ConfValue("module","name",count2,Value,&config_f);
-                       new_module_names.push_back(Value);
-               }
-
-               // now create a list of new modules that are due to be loaded
-               // and a seperate list of modules which are due to be unloaded
-               for (std::vector<std::string>::iterator _new = new_module_names.begin(); _new != new_module_names.end(); _new++)
-               {
-                       bool added = true;
-                       for (std::vector<std::string>::iterator old = old_module_names.begin(); old != old_module_names.end(); old++)
-                       {
-                               if (*old == *_new)
-                                       added = false;
-                       }
-                       if (added)
-                               added_modules.push_back(*_new);
-               }
-               for (std::vector<std::string>::iterator oldm = old_module_names.begin(); oldm != old_module_names.end(); oldm++)
-               {
-                       bool removed = true;
-                       for (std::vector<std::string>::iterator newm = new_module_names.begin(); newm != new_module_names.end(); newm++)
-                       {
-                               if (*newm == *oldm)
-                                       removed = false;
-                       }
-                       if (removed)
-                               removed_modules.push_back(*oldm);
-               }
-               // now we have added_modules, a vector of modules to be loaded, and removed_modules, a vector of modules
-               // to be removed.
-               int rem = 0, add = 0;
-               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) && (sock != FD_MAGIC_NUMBER))
-       {
-               int MOD_RESULT = 0;
-               FOREACH_RESULT(OnRawSocketWrite(sock,tb,bytes > 512 ? 512 : bytes));
-               if (!MOD_RESULT)
-                       write(sock,tb,bytes > 512 ? 512 : bytes);
-               if (fd_ref_table[sock])
-               {
-                       fd_ref_table[sock]->bytes_out += (bytes > 512 ? 512 : bytes);
-                       fd_ref_table[sock]->cmds_out++;
-               }
-               statsSent += (bytes > 512 ? 512 : 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) && (sock != FD_MAGIC_NUMBER))
-       {
-                int MOD_RESULT = 0;
-                FOREACH_RESULT(OnRawSocketWrite(sock,tb,bytes > 512 ? 512 : bytes));
-                if (!MOD_RESULT)
-                        write(sock,tb,bytes > 512 ? 512 : bytes);
-                if (fd_ref_table[sock])
-                {
-                        fd_ref_table[sock]->bytes_out += (bytes > 512 ? 512 : bytes);
-                        fd_ref_table[sock]->cmds_out++;
-                }
-               statsSent += (bytes > 512 ? 512 : 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) && (sock != FD_MAGIC_NUMBER))
-       {
-                int MOD_RESULT = 0;
-                FOREACH_RESULT(OnRawSocketWrite(sock,tb,bytes > 512 ? 512 : bytes));
-                if (!MOD_RESULT)
-                        write(sock,tb,bytes > 512 ? 512 : bytes);
-                if (fd_ref_table[sock])
-                {
-                        fd_ref_table[sock]->bytes_out += (bytes > 512 ? 512 : bytes);
-                        fd_ref_table[sock]->cmds_out++;
-                }
-               statsSent += (bytes > 512 ? 512 : 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
-       bzero(&already_sent,65536);
-
-       bool sent_to_at_least_one = false;
-
-        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 ((otheruser->fd > 0) && (!already_sent[otheruser->fd]))
-                               {
-                                       already_sent[otheruser->fd] = 1;
-                                       WriteFrom(otheruser->fd,u,"%s",textbuffer);
-                                       sent_to_at_least_one = true;
-                               }
-                        }
-                }
-        }
-       // if the user was not in any channels, no users will receive the text. Make sure the user
-       // receives their OWN message for WriteCommon
-       if (!sent_to_at_least_one)
-       {
-               WriteFrom(u->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);
-
-        bzero(&already_sent,65536);
-
-        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)
-                               {
-                                       if ((otheruser->fd > 0) && (!already_sent[otheruser->fd]))
-                                       {
-                                               already_sent[otheruser->fd] = 1;
-                                               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);
-                       }
-               }
-       }
-}
-
-void NoticeAllOpers(userrec *source, bool local_only, char* text, ...)
-{
-        if ((!text) || (!source))
-        {
-                log(DEFAULT,"*** BUG *** NoticeAllOpers 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 :*** Notice From %s: %s",a->nick,source->nick,textbuffer);
-                        }
-                }
-        }
-
-        if (!local_only)
-        {
-                char buffer[MAXBUF];
-                snprintf(buffer,MAXBUF,"V %s @* :%s",source->nick,textbuffer);
-                NetSendToAll(buffer);
-        }
-}
-
-// 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 NoticeAll(userrec *source, bool local_only, char* text, ...)
-{
-        if ((!text) || (!source))
-        {
-                log(DEFAULT,"*** BUG *** NoticeAll 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))
-                {
-                       WriteFrom(i->second->fd,source,"NOTICE $* :%s",textbuffer);
-                }
-        }
-
-        if (!local_only)
-        {
-                char buffer[MAXBUF];
-                snprintf(buffer,MAXBUF,"V %s * :%s",source->nick,textbuffer);
-                NetSendToAll(buffer);
-        }
-
-}
-
-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)
-       {
-               for (char* t = n; *t; t++)
-                       *t = lowermap[*t];
-       }
-}
-
-
-
-/* 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))
-                       {
-                               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;
-                               }
-                       }
-                       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++)
+                       new_module_names.push_back(Value);
+               }
+
+               // now create a list of new modules that are due to be loaded
+               // and a seperate list of modules which are due to be unloaded
+               for (std::vector<std::string>::iterator _new = new_module_names.begin(); _new != new_module_names.end(); _new++)
                {
-                       std::string extparam = chan->GetModeParameter(chan->custom_modes[z]);
-                       if (extparam != "")
+                       bool added = true;
+                       for (std::vector<std::string>::iterator old = old_module_names.begin(); old != old_module_names.end(); old++)
                        {
-                               strlcat(sparam," ",MAXBUF);
-                               strlcat(sparam,extparam.c_str(),MAXBUF);
+                               if (*old == *_new)
+                                       added = false;
                        }
+                       if (added)
+                               added_modules.push_back(*_new);
                }
-       }
-       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);
-
-        std::vector<char*> *ulist = c->GetUsers();
-       for (int i = 0; i < ulist->size(); i++)
-       {
-               char* o = (*ulist)[i];
-               userrec* otheruser = (userrec*)o;
-               if ((!has_channel(user,c)) && (strchr(otheruser->modes,'i')))
+               for (std::vector<std::string>::iterator oldm = old_module_names.begin(); oldm != old_module_names.end(); oldm++)
                {
-                       /* user is +i, and source not on the channel, does not show
-                        * nick in NAMES list */
-                       continue;
+                       bool removed = true;
+                       for (std::vector<std::string>::iterator newm = new_module_names.begin(); newm != new_module_names.end(); newm++)
+                       {
+                               if (*newm == *oldm)
+                                       removed = false;
+                       }
+                       if (removed)
+                               removed_modules.push_back(*oldm);
                }
-               strlcat(list,cmode(otheruser,c),MAXBUF);
-               strlcat(list,otheruser->nick,MAXBUF);
-               strlcat(list," ",MAXBUF);
-               if (strlen(list)>(480-NICKMAX))
+               // now we have added_modules, a vector of modules to be loaded, and removed_modules, a vector of modules
+               // to be removed.
+               int rem = 0, add = 0;
+               if (!removed_modules.empty())
+               for (std::vector<std::string>::iterator removing = removed_modules.begin(); removing != removed_modules.end(); removing++)
                {
-                       /* list overflowed into
-                        * multiple numerics */
-                       WriteServ(user->fd,"%s",list);
-                       snprintf(list,MAXBUF,"353 %s = %s :", user->nick, c->name);
+                       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 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 (!added_modules.empty())
+               for (std::vector<std::string>::iterator adding = added_modules.begin(); adding != added_modules.end(); adding++)
                {
-                       if (has_channel(i->second,c))
+                       if (LoadModule(adding->c_str()))
                        {
-                               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++;
-                               }
+                               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());
        }
-       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;
 }
 
 
@@ -1636,8 +507,7 @@ 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);
@@ -1702,7 +572,7 @@ 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))
@@ -1794,7 +664,6 @@ 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);
                        
@@ -1897,7 +766,6 @@ 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 */
@@ -1982,7 +850,6 @@ 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 */
@@ -2228,9 +1095,9 @@ void kill_link(userrec *user,const char* r)
                log(DEBUG,"deleting user hash value %lu",(unsigned long)user);
                if (user->fd > -1)
                        fd_ref_table[user->fd] = NULL;
-               delete user;
                clientlist.erase(iter);
        }
+       delete user;
 }
 
 void kill_link_silent(userrec *user,const char* r)
@@ -2287,74 +1154,9 @@ void kill_link_silent(userrec *user,const char* r)
                log(DEBUG,"deleting user hash value %lu",(unsigned long)user);
                 if (user->fd > -1)
                         fd_ref_table[user->fd] = NULL;
-               delete user;
                clientlist.erase(iter);
        }
-}
-
-
-
-// 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);
+       delete user;
 }
 
 
@@ -2434,8 +1236,8 @@ 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);
@@ -2446,12 +1248,12 @@ 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->ident,u->ident,15);
+       strlcpy(a->dhost,u->dhost,160);
+       strlcpy(a->host,u->host,160);
        strlcpy(a->fullname,u->fullname,128);
        strlcpy(a->server,u->server,256);
        a->signon = u->signon;
@@ -2463,19 +1265,24 @@ 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
                {
@@ -2513,6 +1320,8 @@ void AddClient(int socket, char* host, int port, bool iscached, char* ip)
        // issue in earlier alphas/betas
        if (iter != clientlist.end())
        {
+               userrec* goner = iter->second;
+               delete goner;
                clientlist.erase(iter);
        }
 
@@ -2533,17 +1342,19 @@ void AddClient(int socket, char* host, int port, bool iscached, char* ip)
        strncpy(clientlist[tempnick]->host, host,160);
        strncpy(clientlist[tempnick]->dhost, host,160);
        strncpy(clientlist[tempnick]->server, ServerName,256);
-       strncpy(clientlist[tempnick]->ident, "unknown",12);
+       strncpy(clientlist[tempnick]->ident, "unknown",15);
        clientlist[tempnick]->registered = 0;
        clientlist[tempnick]->signon = TIME+dns_timeout;
        clientlist[tempnick]->lastping = 1;
        clientlist[tempnick]->port = port;
-       strncpy(clientlist[tempnick]->ip,ip,32);
+       strncpy(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++)
        {
@@ -2553,6 +1364,8 @@ void AddClient(int socket, char* host, int port, bool iscached, char* ip)
                        class_flood = i->flood;
                        clientlist[tempnick]->pingmax = i->pingtime;
                        class_threshold = i->threshold;
+                       class_sqmax = i->sendqmax;
+                       class_rqmax = i->recvqmax;
                        break;
                }
        }
@@ -2561,6 +1374,8 @@ void AddClient(int socket, char* host, int port, bool iscached, char* ip)
        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++)
        {
@@ -2581,7 +1396,7 @@ void AddClient(int socket, char* host, int port, bool iscached, char* ip)
        // 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 > 65535)
+       if (socket > 65534)
        {
                kill_link(clientlist[tempnick],"Server is full");
                return;
@@ -2645,135 +1460,6 @@ void AddClient(int socket, char* host, int port, bool iscached, char* ip)
 #endif
 }
 
-// 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;
-}
-
-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++)
-       {
-               if ((i->second->fd) && (isnick(i->second->nick)) && (!strcasecmp(i->second->server,ServerName))) c++;
-       }
-       return c;
-}
-
-
-void ShowMOTD(userrec *user)
-{
-       char buf[65536];
-        std::string WholeMOTD = "";
-        if (!MOTD.size())
-        {
-                WriteServ(user->fd,"422 %s :Message of the day file is missing.",user->nick);
-                return;
-        }
-        snprintf(buf,65535,":%s 375 %s :- %s message of the day\r\n", ServerName, user->nick, ServerName);
-       WholeMOTD = WholeMOTD + buf;
-        for (int i = 0; i != MOTD.size(); i++)
-        {
-               snprintf(buf,65535,":%s 372 %s :- %s\r\n", ServerName, user->nick, MOTD[i].c_str());
-                WholeMOTD = WholeMOTD + buf;
-        }
-       snprintf(buf,65535,":%s 376 %s :End of message of the day.\r\n", ServerName, user->nick);
-        WholeMOTD = WholeMOTD + buf;
-        // only one write operation
-        send(user->fd,WholeMOTD.c_str(),WholeMOTD.length(),0);
-       statsSent += WholeMOTD.length();
-}
-
-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);
-}
-
 /* shows the message of the day, and any other on-logon stuff */
 void FullConnectUser(userrec* user)
 {
@@ -2861,20 +1547,6 @@ void FullConnectUser(userrec* user)
 }
 
 
-// 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;
-}
-
 /* shows the message of the day, and any other on-logon stuff */
 void ConnectUser(userrec *user)
 {
@@ -3034,40 +1706,6 @@ void DoSplitEveryone()
 
 
 
-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];
@@ -3418,22 +2056,6 @@ void process_command(userrec *user, char* cmd)
        }
 }
 
-
-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;
@@ -3454,61 +2076,6 @@ 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)
 {
@@ -3570,7 +2137,7 @@ 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
 
@@ -3585,7 +2152,7 @@ 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);
                                 }
                         }
@@ -3593,17 +2160,17 @@ void DoSync(serverrec* serv, char* tcp_host)
         }
 
        // send our version for the remote side to cache
-       snprintf(data,MAXBUF,"v %s %s",ServerName,GetVersionString().c_str());
+       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++)
@@ -3611,14 +2178,14 @@ 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,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);
                }
        }
@@ -3632,27 +2199,27 @@ 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
@@ -3844,67 +2411,6 @@ 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;
-}
-
-std::string GetFullProgDir(char** argv, int argc)
-{
-       char work[MAXBUF];
-       strlcpy(work,argv[0],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 "";
-       chdir(work);
-       if( getcwd( otherdir, MAXBUF ) == NULL )
-               return "";
-       chdir(buffer);
-       return otherdir;
-}
-
 bool LoadModule(const char* filename)
 {
        char modfile[MAXBUF];
@@ -4069,7 +2575,9 @@ int InspIRCd(char** argv, int argc)
        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);
        
@@ -4169,10 +2677,11 @@ int InspIRCd(char** argv, int argc)
        WritePID(PID);
 
        length = sizeof (client);
-       char tcp_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
         fd_set serverfds;
@@ -4187,7 +2696,7 @@ int InspIRCd(char** argv, int argc)
         tval.tv_usec = 10000L;
         tval.tv_sec = 0;
         int total_in_this_set = 0;
-       int i = 0, v = 0;
+       int i = 0, v = 0, j = 0, cycle_iter = 0;
        bool expire_run = false;
          
        /* main loop, this never returns */
@@ -4196,13 +2705,16 @@ int InspIRCd(char** argv, int argc)
 #ifdef _POSIX_PRIORITY_SCHEDULING
                sched_yield();
 #endif
-                // poll dns queue
-                dns_poll();
+#ifndef USE_KQUEUE
                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))
@@ -4268,12 +2780,15 @@ int InspIRCd(char** argv, int argc)
                for (int x = 0; x < SERVERportCount; x++)
                {
                        std::deque<std::string> msgs;
+                       std::deque<std::string> sums;
                        msgs.clear();
-                       if ((me[x]) && (me[x]->RecvPacket(msgs, tcp_host)))
+                       sums.clear();
+                       if ((me[x]) && (me[x]->RecvPacket(msgs, tcp_host, sums)))
                        {
                                for (int ctr = 0; ctr < msgs.size(); ctr++)
                                {
                                        strlcpy(tcp_msg,msgs[ctr].c_str(),MAXBUF);
+                                       strlcpy(tcp_sum,msgs[ctr].c_str(),MAXBUF);
                                        log(DEBUG,"Processing: %s",tcp_msg);
                                        if (!tcp_msg[0])
                                        {
@@ -4287,16 +2802,16 @@ int InspIRCd(char** argv, int argc)
                                                {
                                                        if ((tcp_msg[0] != 'Y') && (tcp_msg[0] != 'X') && (tcp_msg[0] != 'F'))
                                                        {
-                                                               NetSendToAllExcept(tcp_host,tcp_msg);
+                                                               NetSendToAllExcept_WithSum(tcp_host,tcp_msg,tcp_sum);
                                                        }
                                                }
                                                else
-                                                       NetSendToAllExcept(tcp_host,tcp_msg);
+                                                       NetSendToAllExcept_WithSum(tcp_host,tcp_msg,tcp_sum);
                                        }
                                        std::string msg = tcp_msg;
                                        FOREACH_MOD OnPacketReceive(msg,tcp_host);
                                        strlcpy(tcp_msg,msg.c_str(),MAXBUF);
-                                       handle_link_packet(tcp_msg, tcp_host, me[x]);
+                                       handle_link_packet(tcp_msg, tcp_host, me[x], tcp_sum);
                                }
                                goto label;
                        }
@@ -4304,7 +2819,9 @@ int InspIRCd(char** argv, int argc)
        
        while (count2 != clientlist.end())
        {
+#ifndef USE_KQUEUE
                FD_ZERO(&sfd);
+#endif
 
                total_in_this_set = 0;
 
@@ -4337,6 +2854,14 @@ int InspIRCd(char** argv, int argc)
                                        // we don't check the state of remote users.
                                        if ((curr->fd != -1) && (curr->fd != FD_MAGIC_NUMBER))
                                        {
+                                               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
@@ -4383,17 +2908,27 @@ int InspIRCd(char** argv, int argc)
                        endingiter = count2;
                                count2 = xcount; // roll back to where we were
 #else
-                       dns_poll();
                        // KQUEUE: 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.
-                       while (count2 != clientlist.end())
+                       cycle_iter++;
+                       if (cycle_iter > 10) while (count2 != clientlist.end())
                        {
+                               cycle_iter = 0;
                                if (count2 != clientlist.end())
                                {
                                        curr = count2->second;
                                        // we don't check the state of remote users.
                                        if ((curr->fd != -1) && (curr->fd != FD_MAGIC_NUMBER))
                                        {
+
+                                                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))
@@ -4658,8 +3193,8 @@ int InspIRCd(char** argv, int argc)
 #else
        ts.tv_sec = 0;
        ts.tv_nsec = 30000L;
-       i = kevent(lkq, NULL, 0, &ke, 1, &ts);
-       if (i > 0)
+       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.ident);
                // this isnt as efficient as it could be, we could create a reference table
@@ -4668,7 +3203,7 @@ int InspIRCd(char** argv, int argc)
                // compared to the number of clients (possibly over 2000)
                for (count = 0; count < boundPortCount; count++)
                {
-                       if (ke.ident == openSockfd[count])
+                       if (ke_list[j].ident == openSockfd[count])
                        {
 #endif
                                char target[MAXBUF], resolved[MAXBUF];
@@ -4691,7 +3226,7 @@ int InspIRCd(char** argv, int argc)
                                        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;
+                               //goto label;
                        }
                }
        }