socket.cpp

00001 /**
00002  * Copyright (c) 2012, Roy van Dam <roy@vandam-innovations.com>
00003  * All rights reserved.
00004  *
00005  * Redistribution and use in source and binary forms, with or without
00006  * modification, are permitted provided that the following conditions are met:
00007  *
00008  * 1. Redistributions of source code must retain the above copyright notice, this
00009  *    list of conditions and the following disclaimer.
00010  * 2. Redistributions in binary form must reproduce the above copyright notice,
00011  *    this list of conditions and the following disclaimer in the documentation
00012  *    and/or other materials provided with the distribution.
00013  *
00014  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
00015  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
00016  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
00017  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
00018  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
00019  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
00020  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
00021  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
00022  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
00023  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00024  */
00025  
00026 #include "socket.hpp"
00027 using namespace network;
00028 
00029 Socket::Socket():
00030     _status(Socket::Closed),
00031     _socket(-1)
00032 {}
00033 
00034 Socket::~Socket()
00035 {
00036     if (this->_status != Socket::Closed) {
00037         this->close();
00038     }
00039 }
00040 
00041 int
00042 Socket::open()
00043 {
00044     return -1;
00045 }
00046 
00047 int
00048 Socket::close()
00049 {
00050     if (this->_status == Socket::Closed) {
00051         return -1;
00052     }
00053     
00054     // Close the socket
00055     int result = lwip_close(this->_socket);
00056     this->_socket = -1;
00057     
00058     // Update status and return
00059     this->_status = Socket::Closed;
00060     return result;
00061 }
00062 
00063 int
00064 Socket::bind(int port)
00065 {
00066     // Check socket status
00067     if (this->_status != Socket::Open) {
00068         return -1;
00069     }
00070     
00071     // Update local endpoint and create native
00072     struct sockaddr_in native_endpoint;
00073     this->_local_endpoint.setAddress(ip::Address(ip::Address::Any));
00074     this->_local_endpoint.setPort(port);
00075     this->_local_endpoint.toNative(&native_endpoint);
00076     
00077     // Bind socket to endpoint
00078     if (lwip_bind(this->_socket,
00079         (const struct sockaddr *)&native_endpoint,
00080         sizeof(native_endpoint)) < 0)
00081     {
00082         return -1;
00083     }
00084 
00085     return 0;
00086 }
00087 
00088 ip::Endpoint &
00089 Socket::getRemoteEndpoint()
00090 {
00091     return this->_remote_endpoint;
00092 }
00093 
00094 ip::Endpoint &
00095 Socket::getLocalEndpoint()
00096 {
00097     return this->_local_endpoint;
00098 }
00099 
00100 int
00101 Socket::getHandle()
00102 {
00103     return this->_socket;
00104 }
00105 
00106 enum Socket::Status
00107 Socket::getStatus()
00108 {
00109     return this->_status;
00110 }