/* establish all to all connections. */
void
do_dance(const int port)
{
int i, cc;
int fd;
if (comm_rank != comm_size - 1) {
fd = passive_open(port);
if (fd < 0) {
fprintf(stderr, "[%d] Failed passive open.\n", comm_rank);
exit(1);
}
}
MPI_Barrier(MPI_COMM_WORLD);
for (i = 0; i < comm_rank; i++) {
if (active_open(i, port) < 0) {
fprintf(stderr, "[%d] Failed active open.\n", comm_rank);
exit(1);
}
}
for (i = 0; i < comm_size - comm_rank - 1;) {
fd_set afds;
FD_ZERO(&afds);
FD_SET(fd, &afds);
cc = select(fd + 1, &afds, NULL, NULL, NULL);
if (cc == -1 && (errno == EAGAIN || errno == EWOULDBLOCK))
continue;
if (FD_ISSET(fd, &afds)) {
struct sockaddr_in sa;
socklen_t salen = sizeof(sa);
int sock;
int peer;
sock = accept(fd, (struct sockaddr *)&sa, &salen);
if (sock < 0)
perror_exit("accept", 1);
peer = get_peer_rank_by_sock(sock);
if (peer < 0) {
fprintf(stderr, "Failed get peer rank.\n");
exit(1);
}
hosts[peer].sock = sock;
}
i++;
}
}
int command_interpreter(FTPinfo * FTP_information)
{
char pure_command[MAXLINE];
char arg_opt[MAXLINE];
int fail; // this variable make program code readable.
char buf[MAXLINE]; // This will be used for multiple purpose below.
char* userpath; // user relative path.
strcpy(pure_command, FTP_information->RAW_command); //unsafe.
fail = command_parser(FTP_information->RAW_command, pure_command, arg_opt);
/*
for example,
command_parser("USER localhost -arg -opt", buffer-pointer, buffer-pointer2);
buffer-pointer -> USER
buffer-pointer2 -> localhost -arg -opt
*/
/*
if(fail) // fail to parse command due to invalid command.
{
perror("parse error");
return -1;
}
*/
/* interpret command. */
if( strcmp(pure_command, "USER") == 0)
{
//strcpy(FTP_information->response_code, "331");
strcpy(FTP_information->response_code, "331 Please specify the password.\r\n");
strcpy(FTP_information->loginID, arg_opt);
write(FTP_information->controlsockfd, FTP_information->response_code,
strlen(FTP_information->response_code)); // send response.
return 331;
}
else if( strcmp(pure_command, "PASS") == 0)
{
chdir("/Users/tracking/Desktop/old/REAL_FTP/REAL_FTP"); // for xcode debug. you should delete
fail = checkID(FTP_information->loginID, arg_opt);
if(fail)
{
strcpy(FTP_information->response_code, "530 Login incorrect.\r\n");
return 530;
}
// if there not exist user directory, then the program need to make it.
if( access(FTP_information->loginID,F_OK) == -1)
mkdir(FTP_information->loginID, 0777); // you'd better correct permission.
// configure user directory.
chdir(FTP_information->loginID);
getcwd(FTP_information->root_directory, BUFSIZE);
getcwd(FTP_information->working_directory, BUFSIZE);
strcpy(FTP_information->response_code, "230- Welcome to my FTP world.\r\n");
strcat(FTP_information->response_code, "230-\r\n");
strcat(FTP_information->response_code, "230- This system is for authorized users only. All access is logged.\r\n");
strcat(FTP_information->response_code, "230 Login successful.\r\n");
write(FTP_information->controlsockfd, FTP_information->response_code,
strlen(FTP_information->response_code)); // send response.
return 230;
}
else if( strcmp(pure_command, "SYST") == 0)
{
strcpy(FTP_information->response_code, "215 MACOS Type: L8\r\n");
write(FTP_information->controlsockfd, FTP_information->response_code,
strlen(FTP_information->response_code)); // send response.
return 215;
}
else if( strcmp(pure_command, "FEAT") == 0)
{
strcpy(FTP_information->response_code, "211 \r\n");
write(FTP_information->controlsockfd, FTP_information->response_code,
strlen(FTP_information->response_code)); // send response.
return 211;
}
else if( strcmp(pure_command, "PWD") == 0)
{
// strcpy(buf, FTP_information->working_directory);
userpath = Generate_userpath(FTP_information->working_directory, FTP_information->root_directory);
if( *userpath == 0) // NULL is user-root directory
{
buf[0] = '/';
buf[1] = 0;
userpath = buf;
}
sprintf(FTP_information->response_code, "257 \"%s\"\r\n", userpath);
write(FTP_information->controlsockfd, FTP_information->response_code,
strlen(FTP_information->response_code)); // send response.
return 257;
}
else if( strcmp(pure_command, "CWD") == 0)
{
if(access(arg_opt, F_OK ) == -1)
{
sprintf(FTP_information->response_code, "550 %s: No such file or directory\r\n", arg_opt);
return 550;
}
chdir(arg_opt);
getcwd(buf, MAXLINE);
// since user can't move upper directory than user direcory!
if( strlen(buf) < strlen(FTP_information->root_directory))
chdir(FTP_information->root_directory);
getcwd(FTP_information->working_directory, BUFSIZE);
strcpy(FTP_information->response_code, "250 CWD command successful.\r\n");
write(FTP_information->controlsockfd, FTP_information->response_code,
strlen(FTP_information->response_code)); // send response.
return 250;
}
else if( strcmp(pure_command, "QUIT") == 0)
{
sprintf(FTP_information->response_code, "221 Goodbye \r\n");
close(FTP_information->controlsockfd);
write(FTP_information->controlsockfd, FTP_information->response_code,
strlen(FTP_information->response_code)); // send response.
return 221;
}
else if( strcmp(pure_command, "PORT") == 0)
{
/* previous code.
Get_dataportandIP(FTP_information,arg_opt);
strcpy(FTP_information->response_code, "200 PORT command successful.\r\n");
strcpy(FTP_information->RAW_command, pure_command);
*/
Get_dataportandIP(FTP_information,arg_opt);
strcpy(FTP_information->response_code, "200 PORT command successful.\r\n");
write(FTP_information->controlsockfd, FTP_information->response_code,
strlen(FTP_information->response_code));
active_open(FTP_information);
strcpy(FTP_information->response_code, "150 Data Connection OK\r\n");
write(FTP_information->controlsockfd, FTP_information->response_code,
strlen(FTP_information->response_code));
return 200;
}
else if( strcmp(pure_command, "NOOP") == 0)
{
strcpy(FTP_information->response_code, "200 NOOP command successful.\r\n");
write(FTP_information->controlsockfd, FTP_information->response_code,
strlen(FTP_information->response_code)); // send response.
return 200;
}
else if( strcmp(pure_command, "PASV") == 0)
{
passive_open(FTP_information);
// on failure, I would send the message "cannot open connection.".
strcpy(FTP_information->response_code, "150 Data Connection OK\r\n"); // not need.
write(FTP_information->controlsockfd, FTP_information->response_code,
strlen(FTP_information->response_code)); // send response.
return 227;
}
/*
else if( strcmp(pure_command, "LIST") == 0)
{
active_open(FTP_information); // needs to return -1 or 0. for exception proces
strcpy(FTP_information->response_code, "125 Data Connection OK\r\n");
write(FTP_information->controlsockfd, FTP_information->response_code,
strlen(FTP_information->response_code)); // send response.
return 125;
}
*/
else if( strcmp(pure_command, "TYPE") == 0)
{
strcpy(FTP_information->response_code,"200 TYPE Command OK\r\n");
write(FTP_information->controlsockfd, FTP_information->response_code,
strlen(FTP_information->response_code)); // send response.
return 200;
}
else if( strcmp(pure_command, "MKD") == 0)
{
// strcpy(FTP_information->response_code, ")
fail = mkdir(arg_opt, 0644);
if(fail)
{
perror("directory error : ");
strcpy(FTP_information->response_code, "503 Bad sequence of commands.\r\n");
return 503;
}
else
{
strcpy(FTP_information->response_code, "257 Directory Command succesful\r\n");
return 257;
}
write(FTP_information->controlsockfd, FTP_information->response_code,
strlen(FTP_information->response_code)); // send response.
}
else
{
fail = Data_gateway(FTP_information); // maybe data transfer command.
if(fail)
{
sprintf(FTP_information->response_code, "502 Command not implemented.\r\n");
write(FTP_information->controlsockfd, FTP_information->response_code,
strlen(FTP_information->response_code));
return 502;
}
else
{
close(FTP_information->datasockfd); // transfer complete.
write(FTP_information->controlsockfd, FTP_information->response_code,
strlen(FTP_information->response_code));
return 226;
}
}
return 0;
}
int
OpenDDS::DCPS::TcpConnection::open(void* arg)
{
DBG_ENTRY_LVL("TcpConnection","open",6);
if (is_connector_) {
VDBG_LVL((LM_DEBUG, "(%P|%t) DBG: TcpConnection::open active.\n"), 2);
// Take over the refcount from TcpTransport::connect_datalink().
const TcpConnection_rch self(this);
const TcpTransport_rch transport = link_->get_transport_impl();
const bool is_loop(local_address_ == remote_address_);
const PriorityKey key(transport_priority_, remote_address_,
is_loop, false /* !active */);
int active_open_ = active_open();
int connect_tcp_datalink_ = transport->connect_tcp_datalink(link_, self);
if (active_open_ == -1 || connect_tcp_datalink_ == -1) {
// if (active_open() == -1 ||
// transport->connect_tcp_datalink(link_, self) == -1) {
transport->async_connect_failed(key);
return -1;
}
return 0;
}
// The passed-in arg is really the acceptor object that created this
// TcpConnection object, and is also the caller of this open()
// method. We need to cast the arg to the TcpAcceptor* type.
TcpAcceptor* acceptor = static_cast<TcpAcceptor*>(arg);
if (acceptor == 0) {
// The cast failed.
ACE_ERROR_RETURN((LM_ERROR,
ACE_TEXT("(%P|%t) ERROR: TcpConnection::open() - ")
ACE_TEXT("failed to cast void* arg to ")
ACE_TEXT("TcpAcceptor* type.\n")),
-1);
}
// Now we need to ask the TcpAcceptor object to provide us with
// a pointer to the TcpTransport object that "owns" the acceptor.
TcpTransport_rch transport = acceptor->transport();
if (transport.is_nil()) {
// The acceptor gave us a nil transport (smart) pointer.
ACE_ERROR_RETURN((LM_ERROR,
ACE_TEXT("(%P|%t) ERROR: TcpConnection::open() - ")
ACE_TEXT("acceptor's transport is nil.\n")),
-1);
}
TcpInst* tcp_config = acceptor->get_configuration();
// Keep a "copy" of the reference to TcpInst object
// for ourselves.
tcp_config->_add_ref();
tcp_config_ = tcp_config;
local_address_ = tcp_config_->local_address_;
set_sock_options(tcp_config_.in());
// We expect that the active side of the connection (the remote side
// in this case) will supply its listening ACE_INET_Addr as the first
// message it sends to the socket. This is a one-way connection
// establishment protocol message.
passive_setup_ = true;
transport_during_setup_ = transport;
passive_setup_buffer_.size(sizeof(ACE_UINT32));
if (reactor()->register_handler(this, READ_MASK) == -1) {
ACE_ERROR_RETURN((LM_ERROR,
ACE_TEXT("(%P|%t) ERROR: TcpConnection::open() - ")
ACE_TEXT("unable to register with the reactor.%p\n"),
ACE_TEXT("register_handler")),
-1);
}
VDBG_LVL((LM_DEBUG, "(%P|%t) DBG: TcpConnection::open passive handle=%d.\n",
int(get_handle())), 2);
return 0;
}
