void telnet_do(int code)
{
switch(code) {
case 90:
if (msp_active) {
if (msp_debug) {
previous_object()->message("Your client told us to enable MSP but we're already doing it O_O.\n");
}
/* ignore */
} else if (msp_pending) {
if (msp_debug) {
previous_object()->message("Your client granted us permission to enable MSP :).\n");
}
msp_active = 1;
msp_pending = 0;
} else {
if (msp_debug) {
previous_object()->message("Your client told us to enable MSP :).\n");
}
query_conn()->send_will(90);
msp_active = 1;
}
break;
default:
if (general_debug) {
previous_object()->message("Your client sent a request for unknown telnet option " + code + ", refusing.\n");
}
query_conn()->send_wont(code);
}
}
void set_mode(int new_mode)
{
object conn;
ACCESS_CHECK(previous_program() == LIB_CONN || SYSTEM() ||
calling_object() == this_object());
if (!this_object() || !query_conn() || new_mode == MODE_NOCHANGE) {
return;
}
/* we have to do it this way because set_mode is also called to handle return values for hooks in the user object */
/* this can happen more than once in a connection chain, so we need to intercept disconnects and do them */
/* in a 0 callout to avoid double destruction */
/* since network events are asynchronous anyway we aren't causing any actual harm */
if (new_mode == MODE_DISCONNECT) {
query_conn()->set_mode(MODE_BLOCK);
conn::close(nil, 1);
call_out("self_disconnect", 0);
return;
}
query_conn()->set_mode(new_mode);
}
void disable_msp()
{
query_conn()->send_wont(90);
msp_pending = 0;
msp_active = 0;
}
void telnet_will(int code)
{
switch(code) {
default:
if (general_debug) {
previous_object()->message("Your client sent an offer for unknown telnet option " + code + ", forbidding.\n");
}
query_conn()->send_dont(code);
}
}
void telnet_dont(int code)
{
switch(code) {
case 90:
if (msp_active) {
if (msp_debug) {
previous_object()->message("Your client disabled MSP :(.\n");
}
query_conn()->send_wont(code);
msp_active = 0;
} else if (msp_pending) {
if (msp_debug) {
previous_object()->message("Your client forbade MSP :(.\n");
}
msp_pending = 0;
}
break;
}
}
void enable_msp()
{
msp_pending = 1;
query_conn()->send_will(90);
}
