Changes for MacOS. Can be compiled, but there are still some issues.

src/net/common/clientstate.cpp

@@ -82,10 +82,15 @@ ClientStateInit::Process(ClientThread &client)
 	if (IOCTLSOCKET(context.GetSocket(), FIONBIO, &mode) == SOCKET_ERROR)
 		throw ClientException(__FILE__, __LINE__, ERR_SOCK_CREATION_FAILED, SOCKET_ERRNO());
 
-	// The following call is optional - the return value is not checked.
+	// The following calls are optional - the return value is not checked.
 	int nodelay = 1;
 	setsockopt(context.GetSocket(), SOL_SOCKET, TCP_NODELAY, (char *)&nodelay, sizeof(nodelay));
 
+#ifdef SO_NOSIGPIPE
+	int nosigpipe = 1;
+	setsockopt(context.GetSocket(), SOL_SOCKET, SO_NOSIGPIPE, (char *)&nosigpipe, sizeof(nosigpipe));
+#endif
+
 	client.SetState(ClientStateStartResolve::Instance());
 
 	return MSG_SOCK_INIT_DONE;

src/net/common/serveracceptthread.cpp

@@ -182,11 +182,16 @@ ServerAcceptThread::AcceptLoop()
 		{
 			throw ServerException(__FILE__, __LINE__, ERR_SOCK_CREATION_FAILED, SOCKET_ERRNO());
 		}
-		// Optional call - don't check return value.
+		// Optional calls - don't check return value.
 		// Enable keepalive - won't be of much use but better than nothing.
 		int keepalive = 1;
 		setsockopt(tmpData->GetSocket(), SOL_SOCKET, SO_KEEPALIVE, (char *)&keepalive, sizeof(keepalive));
 
+#ifdef SO_NOSIGPIPE
+		int nosigpipe = 1;
+		setsockopt(tmpData->GetSocket(), SOL_SOCKET, SO_NOSIGPIPE, (char *)&nosigpipe, sizeof(nosigpipe));
+#endif
+
 		GetLobbyThread().AddConnection(tmpData);
 	}
 }

src/net/socket_helper.h

@@ -62,7 +62,11 @@ typedef unsigned char					u_char;
 #define IOCTLSOCKET						ioctl
 #define SOCKET_ERR_NOTCONN				ENOTCONN
 #define SOCKET_ERR_NOTSOCK				ENOTSOCK
-#define SOCKET_SEND_FLAGS				MSG_NOSIGNAL
+#ifdef __APPLE__
+	#define SOCKET_SEND_FLAGS			0
+#else
+	#define SOCKET_SEND_FLAGS			MSG_NOSIGNAL
+#endif
 
 #define IS_SOCKET_ERR_WOULDBLOCK(_e)	((_e) == EINPROGRESS || (_e) == EAGAIN)