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/******************************************************************************
(c) 2001-2008 Christine Caulfield christine.caulfield@googlemail.com
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
any later version.
This program 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 General Public License for more details.
******************************************************************************/
#include <sys/types.h>
#include <sys/stat.h>
#include <stdio.h>
#include <fcntl.h>
#include <unistd.h>
#include <termios.h>
#include <string.h>
#include <list>
#include <cassert>
#include <queue>
#include <string>
#include <map>
#include <sstream>
#include "lat.h"
#include "utils.h"
#include "session.h"
#include "localport.h"
#include "connection.h"
#include "circuit.h"
#include "latcpcircuit.h"
#include "server.h"
#include "clientsession.h"
#include "lat_messages.h"
ClientSession::ClientSession(class LATConnection &p,
unsigned char remid, unsigned char localid,
char *ttyname, bool clean):
LATSession(p, remid, localid, clean),
slave_fd_open(false)
{
debuglog(("new client session: localid %d, remote id %d\n",
localid, remid));
if (ttyname) strcpy(ltaname, ttyname);
}
// This should never be called now as it is overridden
// by all self-respecting superclasses.
int ClientSession::new_session(unsigned char *_remote_node,
char *service, char *port,
unsigned char c)
{
assert(!"Should never get here!!");
return 0;
}
int ClientSession::connect_parent()
{
debuglog(("connecting parent for %s\n", ltaname));
return parent.connect(this);
}
// Disconnect the local PTY
void ClientSession::restart_pty()
{
assert(!"ClientSession::restart_pty()\n");
}
// Remote end disconnects or EOF on local PTY
void ClientSession::disconnect_session(int reason)
{
debuglog(("ClientSession::disconnect_session()\n"));
// If the reason was some sort of error then send it to
// the PTY
if (reason > 1)
{
const char *msg = lat_messages::session_disconnect_msg(reason);
write(master_fd, msg, strlen(msg));
write(master_fd, "\n", 1);
}
LATServer::Instance()->set_fd_state(master_fd, true);
connected = false;
restart_pty();
return;
}
ClientSession::~ClientSession()
{
if (slave_fd_open) close (slave_fd);
if (master_fd > -1)
{
close (master_fd);
LATServer::Instance()->remove_fd(master_fd);
}
}
void ClientSession::do_read()
{
debuglog(("ClientSession::do_read(), connected: %d\n", connected));
if (!connected)
{
if (!connect_parent())
{
state = STARTING;
// Disable reads on the PTY until we are connected (or it fails)
LATServer::Instance()->set_fd_state(master_fd, true);
close(slave_fd);
slave_fd_open = false;
}
else
{
// Service does not exist or we haven't heard of it yet.
restart_pty();
}
}
if (connected)
{
read_pty();
}
}
// Called from the slave connection - return the master fd so it can
// can do I/O on it.
int ClientSession::get_port_fd()
{
return master_fd;
}
// Normal client sessions don't provide feedback on status (though maybe we
// should check for other status types....
void ClientSession::show_status(unsigned char *node, LAT_StatusEntry *entry)
{
return;
}
// Called when a PortSession connects to us
void ClientSession::start_port()
{
return;
}
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