/*
* Called to set up the raw connection.
*
* Returns an error message, or NULL on success.
*
* Also places the canonical host name into `realhost'. It must be
* freed by the caller.
*/
static const char *raw_init(void *frontend_handle, void **backend_handle,
Conf *conf,
const char *host, int port, char **realhost,
int nodelay, int keepalive)
{
static const struct plug_function_table fn_table = {
raw_log,
raw_closing,
raw_receive,
raw_sent
};
SockAddr addr;
const char *err;
Raw raw;
int addressfamily;
char *loghost;
raw = snew(struct raw_backend_data);
raw->fn = &fn_table;
raw->s = NULL;
raw->closed_on_socket_error = FALSE;
*backend_handle = raw;
raw->sent_console_eof = raw->sent_socket_eof = FALSE;
raw->bufsize = 0;
raw->session_started = FALSE;
raw->conf = conf_copy(conf);
raw->frontend = frontend_handle;
addressfamily = conf_get_int(conf, CONF_addressfamily);
/*
* Try to find host.
*/
addr = name_lookup(host, port, realhost, conf, addressfamily,
raw->frontend, "main connection");
if ((err = sk_addr_error(addr)) != NULL) {
sk_addr_free(addr);
return err;
}
if (port < 0)
port = 23; /* default telnet port */
/*
* Open socket.
*/
raw->s = new_connection(addr, *realhost, port, 0, 1, nodelay, keepalive,
(Plug) raw, conf);
if ((err = sk_socket_error(raw->s)) != NULL)
return err;
loghost = conf_get_str(conf, CONF_loghost);
if (*loghost) {
char *colon;
sfree(*realhost);
*realhost = dupstr(loghost);
colon = host_strrchr(*realhost, ':');
if (colon)
*colon++ = '\0';
}
return NULL;
}
/*
* Called to set up the rlogin connection.
*
* Returns an error message, or NULL on success.
*
* Also places the canonical host name into `realhost'. It must be
* freed by the caller.
*/
static const char *rlogin_init(void *frontend_handle, void **backend_handle,
Conf *conf,
char *host, int port, char **realhost,
int nodelay, int keepalive)
{
static const struct plug_function_table fn_table = {
rlogin_log,
rlogin_closing,
rlogin_receive,
rlogin_sent
};
SockAddr addr;
const char *err;
Rlogin rlogin;
char *ruser;
int addressfamily;
char *loghost;
rlogin = snew(struct rlogin_tag);
rlogin->fn = &fn_table;
rlogin->s = NULL;
rlogin->closed_on_socket_error = FALSE;
rlogin->frontend = frontend_handle;
rlogin->term_width = conf_get_int(conf, CONF_width);
rlogin->term_height = conf_get_int(conf, CONF_height);
rlogin->firstbyte = 1;
rlogin->cansize = 0;
rlogin->prompt = NULL;
rlogin->conf = conf_copy(conf);
*backend_handle = rlogin;
addressfamily = conf_get_int(conf, CONF_addressfamily);
/*
* Try to find host.
*/
{
char *buf;
buf = dupprintf("Looking up host \"%s\"%s", host,
(addressfamily == ADDRTYPE_IPV4 ? " (IPv4)" :
(addressfamily == ADDRTYPE_IPV6 ? " (IPv6)" :
"")));
logevent(rlogin->frontend, buf);
sfree(buf);
}
addr = name_lookup(host, port, realhost, conf, addressfamily);
if ((err = sk_addr_error(addr)) != NULL) {
sk_addr_free(addr);
return err;
}
if (port < 0)
port = 513; /* default rlogin port */
/*
* Open socket.
*/
rlogin->s = new_connection(addr, *realhost, port, 1, 0,
nodelay, keepalive, (Plug) rlogin, conf);
if ((err = sk_socket_error(rlogin->s)) != NULL)
return err;
loghost = conf_get_str(conf, CONF_loghost);
if (*loghost) {
char *colon;
sfree(*realhost);
*realhost = dupstr(loghost);
colon = host_strrchr(*realhost, ':');
if (colon)
*colon++ = '\0';
}
/*
* Send local username, remote username, terminal type and
* terminal speed - unless we don't have the remote username yet,
* in which case we prompt for it and may end up deferring doing
* anything else until the local prompt mechanism returns.
*/
if ((ruser = get_remote_username(conf)) != NULL) {
rlogin_startup(rlogin, ruser);
sfree(ruser);
} else {
int ret;
rlogin->prompt = new_prompts(rlogin->frontend);
rlogin->prompt->to_server = TRUE;
rlogin->prompt->name = dupstr("Rlogin login name");
add_prompt(rlogin->prompt, dupstr("rlogin username: "), TRUE);
ret = get_userpass_input(rlogin->prompt, NULL, 0);
if (ret >= 0) {
rlogin_startup(rlogin, rlogin->prompt->prompts[0]->result);
}
}
return NULL;
}
