int TcpServer::start() {
for (;;) /* Run forever */
{
/* Set the size of the result-value parameter */
int clientLen = sizeof(ServerAddr);
/* Wait for a Server to connect */
if ((client_sock = accept(sock, (struct sockaddr *)&ClientAddr, &clientLen)) == INVALID_SOCKET) {
SysLogger::inst()->err("accept error");
return -1;
}
/* Create a Thread for this new connection and run*/
TcpThread * pt = new TcpThread(client_sock);
pt->start();
}
return 0;
}
int main(void){
WSADATA wsadata;
try{
if (WSAStartup(0x0202, &wsadata) != 0){
cout << "Error in starting WSAStartup()\n";
}
else{
buffer = "WSAStartup was suuccessful\n";
WriteFile(test, buffer, sizeof(buffer), &dwtest, NULL);
}
//Display info of local host
gethostname(localhost, 20);
cout << "ftpd_tcp starting at host: [" << localhost << "]" << endl
<< "waiting to be contacted for transferring files..." << endl;
if ((hp = gethostbyname(localhost)) == NULL) {
cout << "gethostbyname() cannot get local host info?"
<< WSAGetLastError() << endl;
exit(1);
}
//Create the server socket
if ((s = socket(AF_INET, SOCK_STREAM, 0)) == INVALID_SOCKET)
throw "can't initialize socket";
//Fill-in Server Port and Address info.
sa.sin_family = AF_INET;
sa.sin_port = htons(port);
sa.sin_addr.s_addr = htonl(INADDR_ANY);
//Bind the server port
if (bind(s, (LPSOCKADDR)&sa, sizeof(sa)) == SOCKET_ERROR)
throw "can't bind the socket";
//Successfull bind, now listen for client requests.
if (listen(s, 10) == SOCKET_ERROR)
throw "couldn't set up listen on socket";
FD_ZERO(&readfds);
while (1)
{
FD_SET(s, &readfds); //always check the listener
if (!(outfds = select(infds, &readfds, NULL, NULL, tp))) {}
else if (outfds == SOCKET_ERROR) throw "failure in Select";
else if (FD_ISSET(s, &readfds)) cout << "got a connection request" << endl;
//Found a connection request, try to accept.
if ((s1 = accept(s, &ca.generic, &calen)) == INVALID_SOCKET)
throw "Couldn't accept connection\n";
//Start a new thread when a client connection is received
TcpThread * t = new TcpThread(s1);
t->start();
}
}
//Display needed error message.
catch (char* str) { cerr << str << WSAGetLastError() << endl; }
//close server socket
closesocket(s);
/* When done uninstall winsock.dll (WSACleanup()) and exit */
WSACleanup();
return 0;
}
