/*
-- FUNCTION: initializeServer
--
-- DATE: March 12, 2011
--
-- REVISIONS: September 22, 2011 - Added some extra comments about failure and
-- a function call to set the socket into non blocking mode.
--
-- DESIGNER: Luke Queenan
--
-- PROGRAMMER: Luke Queenan
--
-- INTERFACE: void initializeServer(int *listenSocket, int *port);
--
-- RETURNS: void
--
-- NOTES:
-- This function sets up the required server connections, such as creating a
-- socket, setting the socket to reuse mode, binding it to an address, and
-- setting it to listen. If an error occurs, the function calls "systemFatal"
-- with an error message.
*/
void initializeServer(int *listenSocket, int *port)
{
// Create a TCP socket
if ((*listenSocket = tcpSocket()) == -1)
{
systemFatal("Cannot Create Socket!");
}
// Allow the socket to be reused immediately after exit
if (setReuse(&(*listenSocket)) == -1)
{
systemFatal("Cannot Set Socket To Reuse");
}
// Bind an address to the socket
if (bindAddress(&(*port), &(*listenSocket)) == -1)
{
systemFatal("Cannot Bind Address To Socket");
}
// Set the socket to listen for connections
if (setListen(&(*listenSocket)) == -1)
{
systemFatal("Cannot Listen On Socket");
}
}
/*
-- FUNCTION: createTransferSocket
--
-- DATE: September 29, 2011
--
-- REVISIONS: (Date and Description)
--
-- DESIGNER: Luke Queenan
--
-- PROGRAMMER: Luke Queenan
--
-- INTERFACE: void createTransferSocket(int *socket);
--
-- RETURNS: void
--
-- NOTES:
-- This function creates a transfer socket for the server to communicate with
-- the client. The socket is bound to port 7000.
*/
void createTransferSocket(int *socket)
{
int *defaultPort = (int*)malloc(sizeof(int));
*defaultPort = TRANSFER_PORT;
// Create a TCP socket
if ((*socket = tcpSocket()) == -1)
{
systemFatal("Cannot Create Socket!");
}
// Allow the socket to be reused immediately after exit
if (setReuse(socket) == -1)
{
systemFatal("Cannot Set Socket To Reuse");
}
// Bind an address to the socket
if (bindAddress(defaultPort, socket) == -1)
{
systemFatal("Cannot Bind Address To Socket");
}
free(defaultPort);
}
/*
-- FUNCTION: initializeServer
--
-- DATE: September 23, 2011
--
-- REVISIONS:
--
-- DESIGNER: Karl Castillo
--
-- PROGRAMMER: Karl Castillo
--
-- INTERFACE: void initalizeServer(int* port, int* socket)
-- port - the port the client will listen on
-- socket - the socket that will hold the new socket
--
-- RETURNS: void
--
-- NOTES:
-- This function will create the socket, set reuse and listen for any incoming
-- connections from the server.
*/
void initalizeServer(int* port, int* socket)
{
int sock = 0;
// Create a TCP socket
if ((sock = tcpSocket()) == -1) {
systemFatal("Cannot Create Socket!");
}
// Allow the socket to be reused immediately after exit
if (setReuse(&sock) == -1) {
systemFatal("Cannot Set Socket To Reuse");
}
// Bind an address to the socket
if (bindAddress(port, &sock) == -1) {
systemFatal("Cannot Bind Address To Socket");
}
// Set the socket to listen for connections
if (setListen(&sock) == -1) {
systemFatal("Cannot Listen On Socket");
}
if((*socket = acceptConnection(&sock)) == -1) {
systemFatal("Cannot Accept on Socket");
}
close(sock);
}
// --------------------------------------------------
void WSAClientSocket::bind(Host &h)
{
struct sockaddr_in localAddr;
#pragma warning(disable : 4244)
if ((sockNum = socket (PF_INET, SOCK_STREAM, IPPROTO_TCP)) == -1)
#pragma warning(default : 4244)
throw SockException("Can`t open socket");
setBlocking(false);
setReuse(true);
memset(&localAddr,0,sizeof(localAddr));
localAddr.sin_family = AF_INET;
localAddr.sin_port = htons(h.port);
localAddr.sin_addr.s_addr = INADDR_ANY;
if( ::bind (sockNum, (sockaddr *)&localAddr, sizeof(localAddr)) == -1)
throw SockException("Can`t bind socket");
if (::listen(sockNum,SOMAXCONN))
throw SockException("Can`t listen",WSAGetLastError());
host = h;
}
/*
-- FUNCTION: initConnection
--
-- DATE: September 23, 2011
--
-- REVISIONS:
--
-- DESIGNER: Karl Castillo
--
-- PROGRAMMER: Karl Castillo
--
-- INTERFACE: int initConnection(int port, const char* ip)
-- port - the port the client will connect to to the server
-- ip - ip address of the server
--
-- RETURNS: int - the new socket created
--
-- NOTES:
-- This function will create the socket, set reuse and connect to the server.
*/
int initConnection(int port, const char* ip)
{
int socket;
// Creating Socket
if((socket = tcpSocket()) == -1) {
systemFatal("Error Creating Socket");
}
// Setting Socket to Reuse
if(setReuse(&socket) == -1) {
systemFatal("Error Set Socket Reuse");
}
// Connect to transfer server
if(connectToServer(&port, &socket, ip) == -1) {
systemFatal("Cannot Connect to server");
}
return socket;
}
// --------------------------------------------------
void UClientSocket::bind(Host &h)
{
struct sockaddr_in localAddr;
if ((sockNum = socket (PF_INET, SOCK_STREAM, IPPROTO_TCP)) == -1)
throw SockException("Can`t open socket");
setReuse(true);
setBlocking(false);
memset(&localAddr,0,sizeof(localAddr));
localAddr.sin_family = AF_INET;
localAddr.sin_port = htons(h.port);
localAddr.sin_addr.s_addr = INADDR_ANY;
if( ::bind (sockNum, (sockaddr *)&localAddr, sizeof(localAddr)) == -1)
throw SockException("Can`t bind socket");
if (::listen(sockNum,3))
throw SockException("Can`t listen");
host = h;
}
