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-rw-r--r--src/inspsocket.cpp751
1 files changed, 750 insertions, 1 deletions
diff --git a/src/inspsocket.cpp b/src/inspsocket.cpp
index a2c5cc47f..f29366c73 100644
--- a/src/inspsocket.cpp
+++ b/src/inspsocket.cpp
@@ -1 +1,750 @@
-/* +------------------------------------+ * | Inspire Internet Relay Chat Daemon | * +------------------------------------+ * * 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 "socket.h" #include "configreader.h" #include "inspstring.h" #include "socketengine.h" #include "inspircd.h" using irc::sockets::OpenTCPSocket; bool InspSocket::Readable() { return ((this->state != I_CONNECTING) && (this->WaitingForWriteEvent == false)); } InspSocket::InspSocket(InspIRCd* SI) { this->Timeout = NULL; this->state = I_DISCONNECTED; this->fd = -1; this->WaitingForWriteEvent = false; this->Instance = SI; this->IsIOHooked = false; } 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->WaitingForWriteEvent = false; this->Instance = SI; this->IsIOHooked = false; if (this->fd > -1) this->Instance->SE->AddFd(this); } InspSocket::InspSocket(InspIRCd* SI, const std::string &ipaddr, int aport, bool listening, unsigned long maxtime, const std::string &connectbindip) { 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); return; } else { 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; return; } else { this->state = I_LISTENING; this->port = aport; if (this->fd > -1) { if (!this->Instance->SE->AddFd(this)) { this->Close(); this->state = I_ERROR; this->OnError(I_ERR_NOMOREFDS); } } return; } } } else { strlcpy(this->host,ipaddr.c_str(),MAXBUF); this->port = aport; bool ipvalid = true; #ifdef IPV6 if (strchr(host,':')) { in6_addr n; if (inet_pton(AF_INET6, host, &n) < 1) ipvalid = false; } else #endif { 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 { strlcpy(this->IP,host,MAXBUF); 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 char *)&sendbuf,sizeof(sendbuf)); setsockopt(nfd,SOL_SOCKET,SO_RCVBUF,(const char *)&recvbuf,sizeof(sendbuf)); } /* 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) { 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())) { std::string IP = ip.empty() ? Conf.ReadValue("bind","address",j) : ip; if (!ip.empty() || Conf.ReadValue("bind","type",j) == "servers") { 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; } } j++; } return true; } bool InspSocket::DoConnect() { 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) { this->state = I_ERROR; this->OnError(I_ERR_SOCKET); delete[] addr; return false; } #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); #else unsigned long flags = 0; ioctlsocket(this->fd, FIONBIO, &flags); #endif if (connect(this->fd, (sockaddr*)addr, size) == -1) { if (errno != EINPROGRESS) { this->OnError(I_ERR_CONNECT); this->Close(); this->state = I_ERROR; return false; } this->Timeout = new SocketTimeout(this->GetFd(), this->Instance, this, timeout_val, this->Instance->Time()); this->Instance->Timers->AddTimer(this->Timeout); } this->state = I_CONNECTING; if (this->fd > -1) { if (!this->Instance->SE->AddFd(this)) { this->OnError(I_ERR_NOMOREFDS); this->Close(); this->state = I_ERROR; return false; } this->SetQueues(this->fd); } return true; } void InspSocket::Close() { /* Save this, so we dont lose it, * otherise on failure, error messages * might be inaccurate. */ int save = errno; if (this->fd > -1) { 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()); } } this->OnClose(); shutdown(this->fd,2); close(this->fd); if (Instance->SocketCull.find(this) == Instance->SocketCull.end()) Instance->SocketCull[this] = this; } errno = save; } std::string InspSocket::GetIP() { return this->IP; } char* InspSocket::Read() { #ifdef WINDOWS if ((fd < 0) || (m_internalFd > MAX_DESCRIPTORS)) #else if ((fd < 0) || (fd > MAX_DESCRIPTORS)) #endif return NULL; 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; return ibuf; } else { int err = errno; if (err == EAGAIN) return ""; else return NULL; } } void InspSocket::MarkAsClosed() { } // There are two possible outcomes to this function. // It will either write all of the data, or an undefined amount. // If an undefined amount is written the connection has failed // and should be aborted. int InspSocket::Write(const std::string &data) { /* 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() { errno = 0; if ((this->fd > -1) && (this->state == I_CONNECTED)) { if (this->IsIOHooked) { while (outbuffer.size() && (errno != EAGAIN)) { try { /* 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(); } catch (CoreException& modexcept) { Instance->Log(DEBUG,"%s threw an exception: %s", modexcept.GetSource(), modexcept.GetReason()); return true; } } } else { /* If we have multiple lines, try to send them all, * not just the first one -- Brain */ while (outbuffer.size() && (errno != EAGAIN)) { /* 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; } } } } if ((errno == EAGAIN) && (fd > -1)) { this->Instance->SE->WantWrite(this); } return (fd < 0); } void SocketTimeout::Tick(time_t now) { if (ServerInstance->SE->GetRef(this->sfd) != this->sock) return; if (this->sock->state == I_CONNECTING) { // 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->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; } this->sock->Timeout = NULL; } bool InspSocket::Poll() { #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; if ((fd < 0) || (fd > MAX_DESCRIPTORS)) return false; #endif switch (this->state) { case I_CONNECTING: /* Our socket was in write-state, so delete it and re-add it * in read-state. */ #ifndef WINDOWS if (this->fd > -1) { 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: { 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); delete[] client; return true; } break; case I_CONNECTED: /* Process the read event */ return this->OnDataReady(); break; default: break; } return true; } void InspSocket::SetState(InspSocketState s) { 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(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; } } \ No newline at end of file
+/* +------------------------------------+
+ * | Inspire Internet Relay Chat Daemon |
+ * +------------------------------------+
+ *
+ * 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 "socket.h"
+#include "configreader.h"
+#include "inspstring.h"
+#include "socketengine.h"
+#include "inspircd.h"
+
+using irc::sockets::OpenTCPSocket;
+
+bool InspSocket::Readable()
+{
+ return ((this->state != I_CONNECTING) && (this->WaitingForWriteEvent == false));
+}
+
+InspSocket::InspSocket(InspIRCd* SI)
+{
+ this->Timeout = NULL;
+ this->state = I_DISCONNECTED;
+ this->fd = -1;
+ this->WaitingForWriteEvent = false;
+ this->Instance = SI;
+ this->IsIOHooked = false;
+}
+
+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->WaitingForWriteEvent = false;
+ this->Instance = SI;
+ this->IsIOHooked = false;
+ if (this->fd > -1)
+ this->Instance->SE->AddFd(this);
+}
+
+InspSocket::InspSocket(InspIRCd* SI, const std::string &ipaddr, int aport, bool listening, unsigned long maxtime, const std::string &connectbindip)
+{
+ 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);
+ return;
+ }
+ else
+ {
+ 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;
+ return;
+ }
+ else
+ {
+ this->state = I_LISTENING;
+ this->port = aport;
+ if (this->fd > -1)
+ {
+ if (!this->Instance->SE->AddFd(this))
+ {
+ this->Close();
+ this->state = I_ERROR;
+ this->OnError(I_ERR_NOMOREFDS);
+ }
+ }
+ return;
+ }
+ }
+ }
+ else
+ {
+ strlcpy(this->host,ipaddr.c_str(),MAXBUF);
+ this->port = aport;
+
+ bool ipvalid = true;
+#ifdef IPV6
+ if (strchr(host,':'))
+ {
+ in6_addr n;
+ if (inet_pton(AF_INET6, host, &n) < 1)
+ ipvalid = false;
+ }
+ else
+#endif
+ {
+ 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
+ {
+ strlcpy(this->IP,host,MAXBUF);
+ 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 char *)&sendbuf,sizeof(sendbuf));
+ setsockopt(nfd,SOL_SOCKET,SO_RCVBUF,(const char *)&recvbuf,sizeof(sendbuf));
+}
+
+/* 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)
+{
+ 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()))
+ {
+ std::string IP = ip.empty() ? Conf.ReadValue("bind","address",j) : ip;
+ if (!ip.empty() || Conf.ReadValue("bind","type",j) == "servers")
+ {
+ 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;
+ }
+ }
+ j++;
+ }
+ return true;
+}
+
+bool InspSocket::DoConnect()
+{
+ 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)
+ {
+ this->state = I_ERROR;
+ this->OnError(I_ERR_SOCKET);
+ delete[] addr;
+ return false;
+ }
+
+#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);
+#else
+ unsigned long flags = 0;
+ ioctlsocket(this->fd, FIONBIO, &flags);
+#endif
+ if (connect(this->fd, (sockaddr*)addr, size) == -1)
+ {
+ if (errno != EINPROGRESS)
+ {
+ this->OnError(I_ERR_CONNECT);
+ this->Close();
+ this->state = I_ERROR;
+ return false;
+ }
+
+ this->Timeout = new SocketTimeout(this->GetFd(), this->Instance, this, timeout_val, this->Instance->Time());
+ this->Instance->Timers->AddTimer(this->Timeout);
+ }
+ this->state = I_CONNECTING;
+ if (this->fd > -1)
+ {
+ if (!this->Instance->SE->AddFd(this))
+ {
+ this->OnError(I_ERR_NOMOREFDS);
+ this->Close();
+ this->state = I_ERROR;
+ return false;
+ }
+ this->SetQueues(this->fd);
+ }
+ return true;
+}
+
+
+void InspSocket::Close()
+{
+ /* Save this, so we dont lose it,
+ * otherise on failure, error messages
+ * might be inaccurate.
+ */
+ int save = errno;
+ if (this->fd > -1)
+ {
+ 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());
+ }
+ }
+ this->OnClose();
+ shutdown(this->fd,2);
+ close(this->fd);
+
+ if (Instance->SocketCull.find(this) == Instance->SocketCull.end())
+ Instance->SocketCull[this] = this;
+ }
+ errno = save;
+}
+
+std::string InspSocket::GetIP()
+{
+ return this->IP;
+}
+
+char* InspSocket::Read()
+{
+#ifdef WINDOWS
+ if ((fd < 0) || (m_internalFd > MAX_DESCRIPTORS))
+#else
+ if ((fd < 0) || (fd > MAX_DESCRIPTORS))
+#endif
+ return NULL;
+
+ 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;
+ return ibuf;
+ }
+ else
+ {
+ int err = errno;
+ if (err == EAGAIN)
+ return "";
+ else
+ return NULL;
+ }
+}
+
+void InspSocket::MarkAsClosed()
+{
+}
+
+// There are two possible outcomes to this function.
+// It will either write all of the data, or an undefined amount.
+// If an undefined amount is written the connection has failed
+// and should be aborted.
+int InspSocket::Write(const std::string &data)
+{
+ /* 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()
+{
+ errno = 0;
+ if ((this->fd > -1) && (this->state == I_CONNECTED))
+ {
+ if (this->IsIOHooked)
+ {
+ while (outbuffer.size() && (errno != EAGAIN))
+ {
+ try
+ {
+ /* 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();
+ }
+ catch (CoreException& modexcept)
+ {
+ Instance->Log(DEBUG,"%s threw an exception: %s", modexcept.GetSource(), modexcept.GetReason());
+ return true;
+ }
+ }
+ }
+ else
+ {
+ /* If we have multiple lines, try to send them all,
+ * not just the first one -- Brain
+ */
+ while (outbuffer.size() && (errno != EAGAIN))
+ {
+ /* 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;
+ }
+ }
+ }
+ }
+
+ if ((errno == EAGAIN) && (fd > -1))
+ {
+ this->Instance->SE->WantWrite(this);
+ }
+
+ return (fd < 0);
+}
+
+void SocketTimeout::Tick(time_t now)
+{
+ if (ServerInstance->SE->GetRef(this->sfd) != this->sock)
+ return;
+
+ if (this->sock->state == I_CONNECTING)
+ {
+ // 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->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;
+ }
+
+ this->sock->Timeout = NULL;
+}
+
+bool InspSocket::Poll()
+{
+#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;
+
+ if ((fd < 0) || (fd > MAX_DESCRIPTORS))
+ return false;
+#endif
+ switch (this->state)
+ {
+ case I_CONNECTING:
+ /* Our socket was in write-state, so delete it and re-add it
+ * in read-state.
+ */
+#ifndef WINDOWS
+ if (this->fd > -1)
+ {
+ 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:
+ {
+ 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);
+
+ delete[] client;
+ return true;
+ }
+ break;
+ case I_CONNECTED:
+ /* Process the read event */
+ return this->OnDataReady();
+ break;
+ default:
+ break;
+ }
+ return true;
+}
+
+void InspSocket::SetState(InspSocketState s)
+{
+ 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(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;
+ }
+}
+