]> git.netwichtig.de Git - user/henk/code/inspircd.git/blobdiff - src/socket.cpp
Allow ulines to still notice the channel regardless of +T
[user/henk/code/inspircd.git] / src / socket.cpp
index cb019a3c2dbd1e255e4de882cb9fb828e360e18a..160f0f652dd04a8c6774a3f13d4546c7ecf6c67a 100644 (file)
@@ -2,7 +2,7 @@
  *       | Inspire Internet Relay Chat Daemon |
  *       +------------------------------------+
  *
- *  Inspire is copyright (C) 2002-2004 ChatSpike-Dev.
+ *  InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev.
  *                       E-mail:
  *                <brain@chatspike.net>
  *               <Craig@chatspike.net>
@@ -32,25 +32,61 @@ using namespace std;
 #include "socket.h"
 #include "inspircd.h"
 #include "inspircd_io.h"
-#include "inspircd_util.h"
 #include "inspstring.h"
 #include "helperfuncs.h"
+#include "socketengine.h"
 
-extern FILE *log_file;
-extern int boundPortCount;
-extern int openSockfd[MAXSOCKS];
+
+extern InspIRCd* ServerInstance;
 extern time_t TIME;
-extern bool unlimitcore;
-extern int MaxConn;
+
+InspSocket* socket_ref[MAX_DESCRIPTORS];
 
 InspSocket::InspSocket()
 {
        this->state = I_DISCONNECTED;
 }
 
+InspSocket::InspSocket(int newfd, char* ip)
+{
+       this->fd = newfd;
+       this->state = I_CONNECTED;
+       this->IP = ip;
+       ServerInstance->SE->AddFd(this->fd,true,X_ESTAB_MODULE);
+       socket_ref[this->fd] = this;
+}
+
 InspSocket::InspSocket(std::string host, int port, bool listening, unsigned long maxtime)
 {
        if (listening) {
+               if ((this->fd = OpenTCPSocket()) == ERROR)
+               {
+                       this->fd = -1;
+                       this->state = I_ERROR;
+                       this->OnError(I_ERR_SOCKET);
+                       log(DEBUG,"OpenTCPSocket() error");
+                        return;
+               }
+               else
+               {
+                       if (BindSocket(this->fd,this->client,this->server,port,(char*)host.c_str()) == ERROR)
+                       {
+                               this->Close();
+                               this->fd = -1;
+                               this->state = I_ERROR;
+                               this->OnError(I_ERR_BIND);
+                               log(DEBUG,"BindSocket() error %s",strerror(errno));
+                               return;
+                       }
+                       else
+                       {
+                               this->state = I_LISTENING;
+                               ServerInstance->SE->AddFd(this->fd,true,X_ESTAB_MODULE);
+                               socket_ref[this->fd] = this;
+                               log(DEBUG,"New socket now in I_LISTENING state");
+                               return;
+                       }
+               }                       
        } else {
                char* ip;
                this->host = host;
@@ -62,6 +98,8 @@ InspSocket::InspSocket(std::string host, int port, bool listening, unsigned long
                        ip = inet_ntoa(*ia);
                }
 
+               this->IP = ip;
+
                 timeout_end = time(NULL)+maxtime;
                 timeout = false;
                 if ((this->fd = socket(AF_INET, SOCK_STREAM, 0)) == -1)
@@ -91,6 +129,8 @@ InspSocket::InspSocket(std::string host, int port, bool listening, unsigned long
                         }
                 }
                 this->state = I_CONNECTING;
+               ServerInstance->SE->AddFd(this->fd,false,X_ESTAB_MODULE);
+               socket_ref[this->fd] = this;
                 return;
        }
 }
@@ -102,20 +142,35 @@ void InspSocket::Close()
                this->OnClose();
                shutdown(this->fd,2);
                close(this->fd);
+               socket_ref[this->fd] = NULL;
                this->fd = -1;
        }
 }
 
+std::string InspSocket::GetIP()
+{
+       return this->IP;
+}
+
 char* InspSocket::Read()
 {
        int n = recv(this->fd,this->ibuf,sizeof(this->ibuf),0);
        if (n > 0)
        {
+               ibuf[n] = 0;
                return ibuf;
        }
        else
        {
-               return NULL;
+               if (n == EAGAIN)
+               {
+                       return "";
+               }
+               else
+               {
+                       log(DEBUG,"EOF or error on socket");
+                       return NULL;
+               }
        }
 }
 
@@ -125,72 +180,100 @@ char* InspSocket::Read()
 // and should be aborted.
 int InspSocket::Write(std::string data)
 {
-       char* d = (char*)data.c_str();
-       unsigned int written = 0;
-       int n = 0;
-       int s = data.length();
-       while ((written < data.length()) && (n >= 0))
+       this->Buffer = this->Buffer + data;
+       this->FlushWriteBuffer();
+       return data.length();
+}
+
+void InspSocket::FlushWriteBuffer()
+{
+       int result = 0;
+       if (this->Buffer.length())
        {
-               n = send(this->fd,d,s,0);
-               if (n > 0)
+               result = send(this->fd,this->Buffer.c_str(),this->Buffer.length(),0);
+               if (result > 0)
                {
-                       // If we didnt write everything, advance
-                       // the pointers so that when we retry
-                       // the next time around the loop, we try
-                       // to write what we failed to write before.
-                       written += n;
-                       s -= n;
-                       d += n;
+                       /* If we wrote some, advance the buffer forwards */
+                       char* n = (char*)this->Buffer.c_str();
+                       n += result;
+                       this->Buffer = n;
                }
        }
-       return written;
 }
 
-bool InspSocket::Poll()
+bool InspSocket::Timeout(time_t current)
 {
-       if (time(NULL) > timeout_end)
+       if ((this->state == I_CONNECTING) && (current > timeout_end))
        {
+               // 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->Close();
                this->OnError(I_ERR_TIMEOUT);
-               timeout = true;
+               timeout = true;
                this->state = I_ERROR;
-               return false;
+               return true;
        }
-        polls.fd = this->fd;
-       state == I_CONNECTING ? polls.events = POLLOUT : polls.events = POLLIN;
-       int ret = poll(&polls,1,1);
+       if (this->Buffer.length())
+               this->FlushWriteBuffer();
+       return false;
+}
 
-        if (ret > 0)
+bool InspSocket::Poll()
+{
+       int incoming = -1;
+       
+       switch (this->state)
        {
-               switch (this->state)
-               {
-                       case I_CONNECTING:
-                               return this->OnConnected();
-                       break;
-                       case I_LISTENING:
-                               this->OnIncomingConnection();
-                       break;
-                       case I_CONNECTED:
-                               return this->OnDataReady();
-                       break;
-                       default:
-                       break;
-               }
+               case I_CONNECTING:
+                       this->SetState(I_CONNECTED);
+                       /* Our socket was in write-state, so delete it and re-add it
+                        * in read-state.
+                        */
+                       ServerInstance->SE->DelFd(this->fd);
+                       ServerInstance->SE->AddFd(this->fd,true,X_ESTAB_MODULE);
+                       return this->OnConnected();
+               break;
+               case I_LISTENING:
+                       length = sizeof (client);
+                       incoming = accept (this->fd, (sockaddr*)&client,&length);
+                       this->OnIncomingConnection(incoming,inet_ntoa(client.sin_addr));
+                       return true;
+               break;
+               case I_CONNECTED:
+                       return this->OnDataReady();
+               break;
+               default:
+               break;
        }
 
+       if (this->Buffer.length())
+               this->FlushWriteBuffer();
+
        return true;
 }
 
 void InspSocket::SetState(InspSocketState s)
 {
+       log(DEBUG,"Socket state change");
        this->state = s;
 }
 
+InspSocketState InspSocket::GetState()
+{
+       return this->state;
+}
+
+int InspSocket::GetFd()
+{
+       return this->fd;
+}
+
 bool InspSocket::OnConnected() { return true; }
 void InspSocket::OnError(InspSocketError e) { return; }
 int InspSocket::OnDisconnect() { return 0; }
-int InspSocket::OnIncomingConnection() { return 0; }
+int InspSocket::OnIncomingConnection(int newfd, char* ip) { return 0; }
 bool InspSocket::OnDataReady() { return true; }
 void InspSocket::OnTimeout() { return; }
 void InspSocket::OnClose() { return; }
@@ -200,7 +283,3 @@ InspSocket::~InspSocket()
        this->Close();
 }
 
-/*
-int BindSocket (int sockfd, struct sockaddr_in client, struct sockaddr_in server, int port, char* addr)
-int OpenTCPSocket (void)
-*/