]> git.netwichtig.de Git - user/henk/code/inspircd.git/blobdiff - src/inspsocket.cpp
* Sockets will now always be nonblocking on win32 version of InspIRCd. There were...
[user/henk/code/inspircd.git] / src / inspsocket.cpp
index 74931cee34b2fd80a9e3ed92b046ea006bceca86..edb58a05c7e74a19713b509212f465856036f245 100644 (file)
  *       | Inspire Internet Relay Chat Daemon |
  *       +------------------------------------+
  *
- *  InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev.
- *                       E-mail:
- *                <brain@chatspike.net>
- *               <Craig@chatspike.net>
- *     
- * Written by Craig Edwards, Craig McLure, and others.
+ *  InspIRCd: (C) 2002-2007 InspIRCd Development Team
+ * See: http://www.inspircd.org/wiki/index.php/Credits
+ *
  * This program is free but copyrighted software; see
  *            the file COPYING for details.
  *
  * ---------------------------------------------------
  */
 
-#include <string>
-#include <sstream>
-#include <iostream>
-#include <fstream>
-#include <stdexcept>
-#include "inspircd_config.h"
 #include "socket.h"
-#include "inspircd.h"
 #include "configreader.h"
 #include "inspstring.h"
-#include "helperfuncs.h"
 #include "socketengine.h"
+#include "inspircd.h"
 
+using irc::sockets::OpenTCPSocket;
 
-extern InspIRCd* ServerInstance;
-extern ServerConfig* Config;
-extern time_t TIME;
-
-InspSocket* socket_ref[MAX_DESCRIPTORS];
+bool InspSocket::Readable()
+{
+       return ((this->state != I_CONNECTING) && (this->WaitingForWriteEvent == false));
+}
 
-InspSocket::InspSocket()
+InspSocket::InspSocket(InspIRCd* SI)
 {
+       this->Timeout = NULL;
        this->state = I_DISCONNECTED;
        this->fd = -1;
-       this->ClosePending = false;
+       this->WaitingForWriteEvent = false;
+       this->Instance = SI;
+       this->IsIOHooked = false;
 }
 
-InspSocket::InspSocket(int newfd, char* ip)
+InspSocket::InspSocket(InspIRCd* SI, int newfd, const char* ip)
 {
+       this->Timeout = NULL;
        this->fd = newfd;
        this->state = I_CONNECTED;
        strlcpy(this->IP,ip,MAXBUF);
-       this->ClosePending = false;
+       this->WaitingForWriteEvent = false;
+       this->Instance = SI;
+       this->IsIOHooked = false;
        if (this->fd > -1)
-       {
-               ServerInstance->SE->AddFd(this->fd,true,X_ESTAB_MODULE);
-               socket_ref[this->fd] = this;
-       }
+               this->Instance->SE->AddFd(this);
 }
 
-InspSocket::InspSocket(const std::string &ahost, int aport, bool listening, unsigned long maxtime) : fd(-1)
+InspSocket::InspSocket(InspIRCd* SI, const std::string &ipaddr, int aport, bool listening, unsigned long maxtime, const std::string &connectbindip)
 {
-       strlcpy(host,ahost.c_str(),MAXBUF);
-       this->ClosePending = false;
-       if (listening) {
-               if ((this->fd = OpenTCPSocket()) == ERROR)
+       this->cbindip = connectbindip;
+       this->fd = -1;
+       this->Instance = SI;
+       strlcpy(host,ipaddr.c_str(),MAXBUF);
+       this->WaitingForWriteEvent = false;
+       this->IsIOHooked = false;
+       this->Timeout = NULL;
+       if (listening)
+       {
+               if ((this->fd = OpenTCPSocket(host)) == ERROR)
                {
                        this->fd = -1;
                        this->state = I_ERROR;
                        this->OnError(I_ERR_SOCKET);
-                       this->ClosePending = true;
-                       log(DEBUG,"OpenTCPSocket() error");
                        return;
                }
                else
                {
-                       if (!BindSocket(this->fd,this->client,this->server,aport,(char*)ahost.c_str()))
+                       if (!SI->BindSocket(this->fd,aport,(char*)ipaddr.c_str()))
                        {
                                this->Close();
                                this->fd = -1;
                                this->state = I_ERROR;
                                this->OnError(I_ERR_BIND);
                                this->ClosePending = true;
-                               log(DEBUG,"BindSocket() error %s",strerror(errno));
                                return;
                        }
                        else
                        {
                                this->state = I_LISTENING;
+                               this->port = aport;
                                if (this->fd > -1)
                                {
-                                       ServerInstance->SE->AddFd(this->fd,true,X_ESTAB_MODULE);
-                                       socket_ref[this->fd] = this;
+                                       if (!this->Instance->SE->AddFd(this))
+                                       {
+                                               this->Close();
+                                               this->state = I_ERROR;
+                                               this->OnError(I_ERR_NOMOREFDS);
+                                       }
                                }
-                               log(DEBUG,"New socket now in I_LISTENING state");
                                return;
                        }
-               }                       
+               }
        }
        else
        {
-               strlcpy(this->host,ahost.c_str(),MAXBUF);
+               strlcpy(this->host,ipaddr.c_str(),MAXBUF);
                this->port = aport;
 
-               if (!inet_aton(host,&addy))
+               bool ipvalid = true;
+#ifdef IPV6
+               if (strchr(host,':'))
+               {
+                       in6_addr n;
+                       if (inet_pton(AF_INET6, host, &n) < 1)
+                               ipvalid = false;
+               }
+               else
+#endif
                {
-                       log(DEBUG,"Attempting to resolve %s",this->host);
-                       /* Its not an ip, spawn the resolver */
-                       this->dns.SetNS(std::string(Config->DNSServer));
-                       this->dns.ForwardLookupWithFD(host,fd);
-                       timeout_end = time(NULL) + maxtime;
-                       timeout = false;
-                       this->state = I_RESOLVING;
-                       socket_ref[this->fd] = this;
+                       in_addr n;
+                       if (inet_aton(host,&n) < 1)
+                               ipvalid = false;
+               }
+               if (!ipvalid)
+               {
+                       this->Instance->Log(DEBUG,"BUG: Hostname passed to InspSocket, rather than an IP address!");
+                       this->OnError(I_ERR_CONNECT);
+                       this->Close();
+                       this->fd = -1;
+                       this->state = I_ERROR;
+                       return;
                }
                else
                {
-                       log(DEBUG,"No need to resolve %s",this->host);
                        strlcpy(this->IP,host,MAXBUF);
-                       timeout_end = time(NULL) + maxtime;
-                       this->DoConnect();
+                       timeout_val = maxtime;
+                       if (!this->DoConnect())
+                       {
+                               this->OnError(I_ERR_CONNECT);
+                               this->Close();
+                               this->fd = -1;
+                               this->state = I_ERROR;
+                               return;
+                       }
                }
        }
 }
 
+void InspSocket::WantWrite()
+{
+       this->Instance->SE->WantWrite(this);
+       this->WaitingForWriteEvent = true;
+}
+
 void InspSocket::SetQueues(int nfd)
 {
        // attempt to increase socket sendq and recvq as high as its possible
        int sendbuf = 32768;
        int recvbuf = 32768;
-       setsockopt(nfd,SOL_SOCKET,SO_SNDBUF,(const void *)&sendbuf,sizeof(sendbuf));
-       setsockopt(nfd,SOL_SOCKET,SO_RCVBUF,(const void *)&recvbuf,sizeof(sendbuf));
+       if(setsockopt(nfd,SOL_SOCKET,SO_SNDBUF,(const char *)&sendbuf,sizeof(sendbuf)) || setsockopt(nfd,SOL_SOCKET,SO_RCVBUF,(const char *)&recvbuf,sizeof(sendbuf)))
+               this->Instance->Log(DEFAULT, "Could not increase SO_SNDBUF/SO_RCVBUF for socket %u", GetFd());
 }
 
-bool InspSocket::DoResolve()
+/* Most irc servers require you to specify the ip you want to bind to.
+ * If you dont specify an IP, they rather dumbly bind to the first IP
+ * of the box (e.g. INADDR_ANY). In InspIRCd, we scan thought the IP
+ * addresses we've bound server ports to, and we try and bind our outbound
+ * connections to the first usable non-loopback and non-any IP we find.
+ * This is easier to configure when you have a lot of links and a lot
+ * of servers to configure.
+ */
+bool InspSocket::BindAddr(const std::string &ip)
 {
-       log(DEBUG,"In DoResolve(), trying to resolve IP");
-       if (this->dns.HasResult())
+       ConfigReader Conf(this->Instance);
+       socklen_t size = sizeof(sockaddr_in);
+#ifdef IPV6
+       bool v6 = false;
+       /* Are we looking for a binding to fit an ipv6 host? */
+       if ((ip.empty()) || (ip.find(':') != std::string::npos))
+               v6 = true;
+#endif
+       int j = 0;
+       while (j < Conf.Enumerate("bind") || (!ip.empty()))
        {
-               log(DEBUG,"Socket has result");
-               std::string res_ip = dns.GetResultIP();
-               if (res_ip != "")
+               std::string IP = ip.empty() ? Conf.ReadValue("bind","address",j) : ip;
+               if (!ip.empty() || Conf.ReadValue("bind","type",j) == "servers")
                {
-                       log(DEBUG,"Socket result set to %s",res_ip.c_str());
-                       strlcpy(this->IP,res_ip.c_str(),MAXBUF);
-                       socket_ref[this->fd] = NULL;
-               }
-               else
-               {
-                       log(DEBUG,"Socket DNS failure");
-                       this->Close();
-                       this->state = I_ERROR;
-                       this->OnError(I_ERR_RESOLVE);
-                       this->fd = -1;
-                       this->ClosePending = true;
-                       return false;
+                       if (!ip.empty() || ((IP != "*") && (IP != "127.0.0.1") && (!IP.empty()) && (IP != "::1")))
+                       {
+                               sockaddr* s = new sockaddr[2];
+#ifdef IPV6
+                               if (v6)
+                               {
+                                       in6_addr n;
+                                       if (inet_pton(AF_INET6, IP.c_str(), &n) > 0)
+                                       {
+                                               memcpy(&((sockaddr_in6*)s)->sin6_addr, &n, sizeof(n));
+                                               ((sockaddr_in6*)s)->sin6_port = 0;
+                                               ((sockaddr_in6*)s)->sin6_family = AF_INET6;
+                                               size = sizeof(sockaddr_in6);
+                                       }
+                                       else
+                                       {
+                                               delete[] s;
+                                               j++;
+                                               continue;
+                                       }
+                               }
+                               else
+#endif
+                               {
+                                       in_addr n;
+                                       if (inet_aton(IP.c_str(), &n) > 0)
+                                       {
+                                               ((sockaddr_in*)s)->sin_addr = n;
+                                               ((sockaddr_in*)s)->sin_port = 0;
+                                               ((sockaddr_in*)s)->sin_family = AF_INET;
+                                       }
+                                       else
+                                       {
+                                               delete[] s;
+                                               j++;
+                                               continue;
+                                       }
+                               }
+
+                               if (bind(this->fd, s, size) < 0)
+                               {
+                                       this->state = I_ERROR;
+                                       this->OnError(I_ERR_BIND);
+                                       this->fd = -1;
+                                       delete[] s;
+                                       return false;
+                               }
+
+                               delete[] s;
+                               return true;
+                       }
                }
-               return this->DoConnect();
+               j++;
        }
-       log(DEBUG,"No result for socket yet!");
        return true;
 }
 
 bool InspSocket::DoConnect()
 {
-       log(DEBUG,"In DoConnect()");
-       if ((this->fd = socket(AF_INET, SOCK_STREAM, 0)) == -1)
+       sockaddr* addr = new sockaddr[2];
+       socklen_t size = sizeof(sockaddr_in);
+#ifdef IPV6
+       bool v6 = false;
+       if ((!*this->host) || strchr(this->host, ':'))
+               v6 = true;
+
+       if (v6)
+       {
+               this->fd = socket(AF_INET6, SOCK_STREAM, 0);
+               if ((this->fd > -1) && ((strstr(this->IP,"::ffff:") != (char*)&this->IP) && (strstr(this->IP,"::FFFF:") != (char*)&this->IP)))
+               {
+                       if (!this->BindAddr(this->cbindip))
+                       {
+                               delete[] addr;
+                               return false;
+                       }
+               }
+       }
+       else
+#endif
+       {
+               this->fd = socket(AF_INET, SOCK_STREAM, 0);
+               if (this->fd > -1)
+               {
+                       if (!this->BindAddr(this->cbindip))
+                       {
+                               delete[] addr;
+                               return false;
+                       }
+               }
+       }
+
+       if (this->fd == -1)
        {
-               log(DEBUG,"Cant socket()");
                this->state = I_ERROR;
                this->OnError(I_ERR_SOCKET);
-               this->fd = -1;
+               delete[] addr;
                return false;
        }
 
-       log(DEBUG,"Part 2 DoConnect() %s",this->IP);
-       inet_aton(this->IP,&addy);
-       addr.sin_family = AF_INET;
-       addr.sin_addr = addy;
-       addr.sin_port = htons(this->port);
-
-       int flags;
-       flags = fcntl(this->fd, F_GETFL, 0);
+#ifdef IPV6
+       if (v6)
+       {
+               in6_addr addy;
+               if (inet_pton(AF_INET6, this->host, &addy) > 0)
+               {
+                       ((sockaddr_in6*)addr)->sin6_family = AF_INET6;
+                       memcpy(&((sockaddr_in6*)addr)->sin6_addr, &addy, sizeof(addy));
+                       ((sockaddr_in6*)addr)->sin6_port = htons(this->port);
+                       size = sizeof(sockaddr_in6);
+               }
+       }
+       else
+#endif
+       {
+               in_addr addy;
+               if (inet_aton(this->host, &addy) > 0)
+               {
+                       ((sockaddr_in*)addr)->sin_family = AF_INET;
+                       ((sockaddr_in*)addr)->sin_addr = addy;
+                       ((sockaddr_in*)addr)->sin_port = htons(this->port);
+               }
+       }
+#ifndef WIN32
+       int flags = fcntl(this->fd, F_GETFL, 0);
        fcntl(this->fd, F_SETFL, flags | O_NONBLOCK);
-
-       if (connect(this->fd, (sockaddr*)&this->addr,sizeof(this->addr)) == -1)
+#else
+       unsigned long flags = 0;
+       ioctlsocket(this->fd, FIONBIO, &flags);
+#endif
+       if (connect(this->fd, (sockaddr*)addr, size) == -1)
        {
                if (errno != EINPROGRESS)
                {
-                       log(DEBUG,"Error connect() %d: %s",this->fd,strerror(errno));
                        this->OnError(I_ERR_CONNECT);
                        this->Close();
                        this->state = I_ERROR;
-                       this->fd = -1;
-                       this->ClosePending = true;
                        return false;
                }
+
+               this->Timeout = new SocketTimeout(this->GetFd(), this->Instance, this, timeout_val, this->Instance->Time());
+               this->Instance->Timers->AddTimer(this->Timeout);
        }
+#ifdef WIN32
+       /* Set nonblocking mode after the connect() call */
+       flags = 0;
+       ioctlsocket(this->fd, FIONBIO, &flags);
+#endif
        this->state = I_CONNECTING;
        if (this->fd > -1)
        {
-               ServerInstance->SE->AddFd(this->fd,false,X_ESTAB_MODULE);
-               socket_ref[this->fd] = this;
+               if (!this->Instance->SE->AddFd(this))
+               {
+                       this->OnError(I_ERR_NOMOREFDS);
+                       this->Close();
+                       this->state = I_ERROR;
+                       return false;
+               }
                this->SetQueues(this->fd);
        }
-       log(DEBUG,"Returning true from InspSocket::DoConnect");
        return true;
 }
 
 
 void InspSocket::Close()
 {
-       if (this->fd != -1)
+       /* Save this, so we dont lose it,
+        * otherise on failure, error messages
+        * might be inaccurate.
+        */
+       int save = errno;
+       if (this->fd > -1)
        {
-               this->OnClose();
+               if (this->IsIOHooked && Instance->Config->GetIOHook(this))
+               {
+                       try
+                       {
+                               Instance->Config->GetIOHook(this)->OnRawSocketClose(this->fd);
+                       }
+                       catch (CoreException& modexcept)
+                       {
+                               Instance->Log(DEFAULT,"%s threw an exception: %s", modexcept.GetSource(), modexcept.GetReason());
+                       }
+               }
                shutdown(this->fd,2);
-               close(this->fd);
-               socket_ref[this->fd] = NULL;
-               this->ClosePending = true;
-               this->fd = -1;
+               if (close(this->fd) != -1)
+                       this->OnClose();
+
+               if (Instance->SocketCull.find(this) == Instance->SocketCull.end())
+                       Instance->SocketCull[this] = this;
        }
+       errno = save;
 }
 
 std::string InspSocket::GetIP()
@@ -224,9 +378,42 @@ std::string InspSocket::GetIP()
 
 char* InspSocket::Read()
 {
+#ifdef WINDOWS
+       if ((fd < 0) || (m_internalFd > MAX_DESCRIPTORS))
+#else
        if ((fd < 0) || (fd > MAX_DESCRIPTORS))
+#endif
                return NULL;
-       int n = recv(this->fd,this->ibuf,sizeof(this->ibuf),0);
+
+       int n = 0;
+
+       if (this->IsIOHooked)
+       {
+               int result2 = 0;
+               int MOD_RESULT = 0;
+               try
+               {
+                       MOD_RESULT = Instance->Config->GetIOHook(this)->OnRawSocketRead(this->fd,this->ibuf,sizeof(this->ibuf),result2);
+               }
+               catch (CoreException& modexcept)
+               {
+                       Instance->Log(DEFAULT,"%s threw an exception: %s", modexcept.GetSource(), modexcept.GetReason());
+               }
+               if (MOD_RESULT < 0)
+               {
+                       n = -1;
+                       errno = EAGAIN;
+               }
+               else
+               {
+                       n = result2;
+               }
+       }
+       else
+       {
+               n = recv(this->fd,this->ibuf,sizeof(this->ibuf),0);
+       }
+
        if ((n > 0) && (n <= (int)sizeof(this->ibuf)))
        {
                ibuf[n] = 0;
@@ -234,22 +421,16 @@ char* InspSocket::Read()
        }
        else
        {
-               if (errno == EAGAIN)
-               {
+               int err = errno;
+               if (err == EAGAIN)
                        return "";
-               }
                else
-               {
-                       log(DEBUG,"EOF or error on socket: %s",strerror(errno));
                        return NULL;
-               }
        }
 }
 
 void InspSocket::MarkAsClosed()
 {
-       log(DEBUG,"Marked as closed");
-       this->ClosePending = true;
 }
 
 // There are two possible outcomes to this function.
@@ -258,136 +439,210 @@ void InspSocket::MarkAsClosed()
 // and should be aborted.
 int InspSocket::Write(const std::string &data)
 {
-       if (this->ClosePending)
-               return false;
-
-       /*int result = write(this->fd,data.c_str(),data.length());
-       if (result < 1)
-               return false;
-       return true;*/
-
        /* Try and append the data to the back of the queue, and send it on its way
         */
        outbuffer.push_back(data);
+       this->Instance->SE->WantWrite(this);
        return (!this->FlushWriteBuffer());
 }
 
 bool InspSocket::FlushWriteBuffer()
 {
-       if (this->ClosePending)
-               return true;
-
+       errno = 0;
        if ((this->fd > -1) && (this->state == I_CONNECTED))
        {
-               if (outbuffer.size())
+               if (this->IsIOHooked)
                {
-                       int result = write(this->fd,outbuffer[0].c_str(),outbuffer[0].length());
-                       if (result > 0)
+                       while (outbuffer.size() && (errno != EAGAIN))
                        {
-                               if ((unsigned int)result == outbuffer[0].length())
+                               try
                                {
-                                       /* The whole block was written (usually a line)
-                                        * Pop the block off the front of the queue
+                                       /* XXX: The lack of buffering here is NOT a bug, modules implementing this interface have to
+                                        * implement their own buffering mechanisms
                                         */
+                                       Instance->Config->GetIOHook(this)->OnRawSocketWrite(this->fd, outbuffer[0].c_str(), outbuffer[0].length());
                                        outbuffer.pop_front();
                                }
-                               else
+                               catch (CoreException& modexcept)
                                {
-                                       std::string temp = outbuffer[0].substr(result);
-                                       outbuffer[0] = temp;
+                                       Instance->Log(DEBUG,"%s threw an exception: %s", modexcept.GetSource(), modexcept.GetReason());
+                                       return true;
                                }
                        }
-                       else if ((result == -1) && (errno != EAGAIN))
+               }
+               else
+               {
+                       /* If we have multiple lines, try to send them all,
+                        * not just the first one -- Brain
+                        */
+                       while (outbuffer.size() && (errno != EAGAIN))
                        {
-                               log(DEBUG,"Write error on socket: %s",strerror(errno));
-                               this->OnError(I_ERR_WRITE);
-                               this->state = I_ERROR;
-                               this->ClosePending = true;
-                               return true;
+                               /* Send a line */
+#ifndef WIN32
+                               int result = write(this->fd,outbuffer[0].c_str(),outbuffer[0].length());
+#else
+                               int result = send(this->fd,outbuffer[0].c_str(),outbuffer[0].length(), 0);
+#endif
+                               if (result > 0)
+                               {
+                                       if ((unsigned int)result >= outbuffer[0].length())
+                                       {
+                                               /* The whole block was written (usually a line)
+                                                * Pop the block off the front of the queue,
+                                                * dont set errno, because we are clear of errors
+                                                * and want to try and write the next block too.
+                                                */
+                                               outbuffer.pop_front();
+                                       }
+                                       else
+                                       {
+                                               std::string temp = outbuffer[0].substr(result);
+                                               outbuffer[0] = temp;
+                                               /* We didnt get the whole line out. arses.
+                                                * Try again next time, i guess. Set errno,
+                                                * because we shouldnt be writing any more now,
+                                                * until the socketengine says its safe to do so.
+                                                */
+                                               errno = EAGAIN;
+                                       }
+                               }
+                               else if ((result == -1) && (errno != EAGAIN))
+                               {
+                                       this->OnError(I_ERR_WRITE);
+                                       this->state = I_ERROR;
+                                       this->Instance->SE->DelFd(this);
+                                       this->Close();
+                                       return true;
+                               }
                        }
                }
        }
-       return (fd < 0);
-}
 
-bool InspSocket::Timeout(time_t current)
-{
-       if (!socket_ref[this->fd] || !ServerInstance->SE->HasFd(this->fd))
+       if ((errno == EAGAIN) && (fd > -1))
        {
-               log(DEBUG,"No FD or socket ref");
-               return false;
+               this->Instance->SE->WantWrite(this);
        }
 
-       if (this->ClosePending)
-       {
-               log(DEBUG,"Close is pending");
-               return true;
-       }
+       return (fd < 0);
+}
 
-       if (((this->state == I_RESOLVING) || (this->state == I_CONNECTING)) && (current > timeout_end))
+void SocketTimeout::Tick(time_t now)
+{
+       if (ServerInstance->SE->GetRef(this->sfd) != this->sock)
+               return;
+
+       if (this->sock->state == I_CONNECTING)
        {
-               log(DEBUG,"Timed out, current=%lu timeout_end=%lu");
                // for non-listening sockets, the timeout can occur
                // which causes termination of the connection after
                // the given number of seconds without a successful
                // connection.
-               this->OnTimeout();
-               this->OnError(I_ERR_TIMEOUT);
-               timeout = true;
-               this->state = I_ERROR;
-               this->ClosePending = true;
-               return true;
+               this->sock->OnTimeout();
+               this->sock->OnError(I_ERR_TIMEOUT);
+               this->sock->timeout = true;
+
+               /* NOTE: We must set this AFTER DelFd, as we added
+                * this socket whilst writeable. This means that we
+                * must DELETE the socket whilst writeable too!
+                */
+               this->sock->state = I_ERROR;
+
+               if (ServerInstance->SocketCull.find(this->sock) == ServerInstance->SocketCull.end())
+                       ServerInstance->SocketCull[this->sock] = this->sock;
        }
-       return this->FlushWriteBuffer();
+
+       this->sock->Timeout = NULL;
 }
 
 bool InspSocket::Poll()
 {
-       if (!socket_ref[this->fd] || !ServerInstance->SE->HasFd(this->fd))
+#ifdef WINDOWS
+       if(Instance->SE->GetRef(this->fd) != this)
+               return false;
+       int incoming = -1;
+#else
+       if (this->Instance->SE->GetRef(this->fd) != this)
                return false;
 
        int incoming = -1;
-       bool n = true;
 
-       if ((fd < 0) || (fd > MAX_DESCRIPTORS) || (this->ClosePending))
+       if ((fd < 0) || (fd > MAX_DESCRIPTORS))
                return false;
-
+#endif
        switch (this->state)
        {
-               case I_RESOLVING:
-                       log(DEBUG,"State = I_RESOLVING, calling DoResolve()");
-                       return this->DoResolve();
-               break;
                case I_CONNECTING:
-                       log(DEBUG,"State = I_CONNECTING");
-                       this->SetState(I_CONNECTED);
                        /* Our socket was in write-state, so delete it and re-add it
                         * in read-state.
                         */
+#ifndef WINDOWS
                        if (this->fd > -1)
                        {
-                               ServerInstance->SE->DelFd(this->fd);
-                               ServerInstance->SE->AddFd(this->fd,true,X_ESTAB_MODULE);
+                               this->Instance->SE->DelFd(this);
+                               this->SetState(I_CONNECTED);
+                               if (!this->Instance->SE->AddFd(this))
+                                       return false;
+                       }
+#else
+                       this->SetState(I_CONNECTED);
+#endif
+                       Instance->Log(DEBUG,"Inspsocket I_CONNECTING state");
+                       if (Instance->Config->GetIOHook(this))
+                       {
+                               Instance->Log(DEBUG,"Hook for raw connect");
+                               try
+                               {
+                                       Instance->Config->GetIOHook(this)->OnRawSocketConnect(this->fd);
+                               }
+                               catch (CoreException& modexcept)
+                               {
+                                       Instance->Log(DEBUG,"%s threw an exception: %s", modexcept.GetSource(), modexcept.GetReason());
+                               }
                        }
                        return this->OnConnected();
                break;
                case I_LISTENING:
-                       length = sizeof (client);
-                       incoming = accept (this->fd, (sockaddr*)&client,&length);
+               {
+                       sockaddr* client = new sockaddr[2];
+                       length = sizeof (sockaddr_in);
+                       std::string recvip;
+#ifdef IPV6
+                       if ((!*this->host) || strchr(this->host, ':'))
+                               length = sizeof(sockaddr_in6);
+#endif
+                       incoming = _accept (this->fd, client, &length);
+#ifdef IPV6
+                       if ((!*this->host) || strchr(this->host, ':'))
+                       {
+                               char buf[1024];
+                               recvip = inet_ntop(AF_INET6, &((sockaddr_in6*)client)->sin6_addr, buf, sizeof(buf));
+                       }
+                       else
+#endif
+                       recvip = inet_ntoa(((sockaddr_in*)client)->sin_addr);
+                       this->OnIncomingConnection(incoming, (char*)recvip.c_str());
+
+                       if (this->IsIOHooked)
+                       {
+                               try
+                               {
+                                       Instance->Config->GetIOHook(this)->OnRawSocketAccept(incoming, recvip.c_str(), this->port);
+                               }
+                               catch (CoreException& modexcept)
+                               {
+                                       Instance->Log(DEBUG,"%s threw an exception: %s", modexcept.GetSource(), modexcept.GetReason());
+                               }
+                       }
+
                        this->SetQueues(incoming);
-                       this->OnIncomingConnection(incoming,inet_ntoa(client.sin_addr));
+
+                       delete[] client;
                        return true;
+               }
                break;
                case I_CONNECTED:
-                       n = this->OnDataReady();
-                       /* Flush any pending, but not till after theyre done with the event
-                        * so there are less write calls involved.
-                        * Both FlushWriteBuffer AND the return result of OnDataReady must
-                        * return true for this to be ok.
-                        */
-                       if (this->FlushWriteBuffer())
-                               return false;
-                       return n;
+                       /* Process the read event */
+                       return this->OnDataReady();
                break;
                default:
                break;
@@ -397,7 +652,6 @@ bool InspSocket::Poll()
 
 void InspSocket::SetState(InspSocketState s)
 {
-       log(DEBUG,"Socket state change");
        this->state = s;
 }
 
@@ -416,10 +670,86 @@ void InspSocket::OnError(InspSocketError e) { return; }
 int InspSocket::OnDisconnect() { return 0; }
 int InspSocket::OnIncomingConnection(int newfd, char* ip) { return 0; }
 bool InspSocket::OnDataReady() { return true; }
+bool InspSocket::OnWriteReady() { return true; }
 void InspSocket::OnTimeout() { return; }
 void InspSocket::OnClose() { return; }
 
 InspSocket::~InspSocket()
 {
        this->Close();
+       if (Timeout)
+       {
+               Instance->Timers->DelTimer(Timeout);
+               Timeout = NULL;
+       }
+}
+
+void InspSocket::HandleEvent(EventType et, int errornum)
+{
+       switch (et)
+       {
+               case EVENT_ERROR:
+                       switch (errornum)
+                       {
+                               case ETIMEDOUT:
+                                       this->OnError(I_ERR_TIMEOUT);
+                               break;
+                               case ECONNREFUSED:
+                               case 0:
+                                       this->OnError(this->state == I_CONNECTING ? I_ERR_CONNECT : I_ERR_WRITE);
+                               break;
+                               case EADDRINUSE:
+                                       this->OnError(I_ERR_BIND);
+                               break;
+                               case EPIPE:
+                               case EIO:
+                                       this->OnError(I_ERR_WRITE);
+                               break;
+                       }
+                       if (this->Instance->SocketCull.find(this) == this->Instance->SocketCull.end())
+                               this->Instance->SocketCull[this] = this;
+                       return;
+               break;
+               case EVENT_READ:
+                       if (!this->Poll())
+                       {
+                               if (this->Instance->SocketCull.find(this) == this->Instance->SocketCull.end())
+                                       this->Instance->SocketCull[this] = this;
+                               return;
+                       }
+               break;
+               case EVENT_WRITE:
+                       if (this->WaitingForWriteEvent)
+                       {
+                               this->WaitingForWriteEvent = false;
+                               if (!this->OnWriteReady())
+                               {
+                                       if (this->Instance->SocketCull.find(this) == this->Instance->SocketCull.end())
+                                               this->Instance->SocketCull[this] = this;
+                                       return;
+                               }
+                       }
+                       if (this->state == I_CONNECTING)
+                       {
+                               /* This might look wrong as if we should be actually calling
+                                * with EVENT_WRITE, but trust me it is correct. There are some
+                                * writeability-state things in the read code, because of how
+                                * InspSocket used to work regarding write buffering in previous
+                                * versions of InspIRCd. - Brain
+                                */
+                               this->HandleEvent(EVENT_READ);
+                               return;
+                       }
+                       else
+                       {
+                               if (this->FlushWriteBuffer())
+                               {
+                                       if (this->Instance->SocketCull.find(this) == this->Instance->SocketCull.end())
+                                               this->Instance->SocketCull[this] = this;
+                                       return;
+                               }
+                       }
+               break;
+       }
 }
+