Neue Listener-Klasse

1 files changed, 102 insertions, 0 deletions

diff --git a/src/Net/Listener.cpp b/src/Net/Listener.cpp
new file mode 100644
index 0000000..b981b20
--- /dev/null
+++ b/src/Net/Listener.cpp
@@ -0,0 +1,102 @@
+/*
+ * Listener.cpp
+ *
+ * Copyright (C) 2008 Matthias Schiffer <matthias@gamezock.de>
+ *
+ * This program is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "Listener.h"
+#include "ServerConnection.h"
+#include <cerrno>
+#include <cstring>
+#include <fcntl.h>
+
+#include <iostream>
+
+namespace Mad {
+namespace Net {
+
+Listener::Listener(const IPAddress &address0) throw(ConnectionException)
+: address(address0) {
+  gnutls_dh_params_init(&dh_params);
+  gnutls_dh_params_generate2(dh_params, 768);
+  
+  sock = socket(PF_INET, SOCK_STREAM, 0);
+  
+  if(sock < 0)
+    throw ConnectionException("socket()", std::strerror(errno));
+  
+  // Set non-blocking flag
+  int flags = fcntl(sock, F_GETFL, 0);
+  
+  if(flags < 0) {
+    close(sock);
+    
+    throw ConnectionException("fcntl()", std::strerror(errno));
+  }
+    
+  fcntl(sock, F_SETFL, flags | O_NONBLOCK);
+  
+  // Set reuse address
+  flags = 1;
+  setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &flags, sizeof(flags));
+  
+  if(bind(sock, address.getSockAddr(), address.getSockAddrLength()) < 0) {
+    close(sock);
+    
+    throw ConnectionException("bind()", std::strerror(errno));
+  }
+  
+  if(listen(sock, 64) < 0) {
+    close(sock);
+    
+    throw ConnectionException("listen()", std::strerror(errno));
+  }
+}
+
+Listener::~Listener() {
+  shutdown(sock, SHUT_RDWR);
+  close(sock);
+  
+  gnutls_dh_params_deinit(dh_params);
+}
+
+ServerConnection* Listener::getConnection() {
+  int sd;
+  struct sockaddr_in sa;
+  socklen_t addrlen = sizeof(sa);
+  
+  while((sd = accept(sock, reinterpret_cast<struct sockaddr*>(&sa), &addrlen)) >= 0) {
+    connections.push_back(new ServerConnection(sd, IPAddress(sa), dh_params));
+    
+    addrlen = sizeof(sa);
+  }
+  
+  for(std::list<ServerConnection*>::iterator con = connections.begin(); con != connections.end(); con++) {
+    (*con)->sendReceive();
+    
+    if(!(*con)->isConnecting()) {
+      ServerConnection *connection = *con;
+      connections.erase(con);
+      
+      return connection;
+    }
+  }
+  
+  return 0;
+}
+
+}
+}