* Sockets will now always be nonblocking on win32 version of InspIRCd. There were some cases (mainly in TreeSockets) where a socket would not get restored to nonblocking mode after a connect() call, resulting in the server getting stuck on a blocking send() call causing freezeups.

* configure will now compile under VC7 again. 

git-svn-id: http://svn.inspircd.org/repository/trunk/inspircd@7500 e03df62e-2008-0410-955e-edbf42e46eb7

2 files changed, 19 insertions, 2 deletions

diff --git a/src/inspsocket.cpp b/src/inspsocket.cpp
index ecf7e0b24..edb58a05c 100644
--- a/src/inspsocket.cpp
+++ b/src/inspsocket.cpp
@@ -149,8 +149,8 @@ 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));
+	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());
 }
 
 /* Most irc servers require you to specify the ip you want to bind to.
@@ -320,6 +320,11 @@ bool InspSocket::DoConnect()
 		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)
 	{
diff --git a/src/socketengine_iocp.cpp b/src/socketengine_iocp.cpp
index ff1c7a0bc..c5c589e5f 100644
--- a/src/socketengine_iocp.cpp
+++ b/src/socketengine_iocp.cpp
@@ -333,7 +333,19 @@ void IOCPEngine::PostAcceptEvent(EventHandler * eh)
 	if (!eh)
 		return;
 
+	int on = 1;
+	u_long arg = 1;
+	struct linger linger = { 0 };
+
 	int fd = WSASocket(AF_INET, SOCK_STREAM, 0, 0, 0, WSA_FLAG_OVERLAPPED);
+
+	setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (char*)&on, sizeof(on));
+	/* This is BSD compatible, setting l_onoff to 0 is *NOT* http://web.irc.org/mla/ircd-dev/msg02259.html */
+	linger.l_onoff = 1;
+	linger.l_linger = 1;
+	setsockopt(fd, SOL_SOCKET, SO_LINGER, (char*)&linger,sizeof(linger));
+	ioctlsocket(fd, FIONBIO, &arg);
+
 	int len = sizeof(sockaddr_in) + 16;
 	DWORD dwBytes;
 	accept_overlap* ao = new accept_overlap;