Added LGPL notice. TCP pdu is working.

src/packetsender.cpp

@@ -1,3 +1,24 @@
+/*
+ * libtins is a net packet wrapper library for crafting and 
+ * interpreting sniffed packets.
+ * 
+ * Copyright (C) 2011 Nasel
+ * 
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ * 
+ * This library 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
+ * Lesser General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
 #ifndef WIN32
     #include <sys/socket.h>
     #include <sys/select.h>
@@ -14,6 +35,8 @@
 #include "packetsender.h"
 
 
+const int Tins::PacketSender::INVALID_RAW_SOCKET = -10;
+
 Tins::PacketSender::PacketSender() : _sockets(SOCKETS_END, INVALID_RAW_SOCKET) {
 
 }
@@ -49,7 +72,6 @@ bool Tins::PacketSender::send_l3(PDU *pdu, const struct sockaddr* link_addr, uin
     bool ret_val = true;
     if(!open_l3_socket())
         ret_val = false;
-
     if (ret_val) {
         uint32_t sz;
         int sock = _sockets[IP_SOCKET];