Board index » delphi » Telenet Client and reconnect

2004-05-21 09:31:54 PM
delphi267
How to detect a physical failure or disconnect and reconnect a telnet
client to a telnet server? Always supossing the server also detectes the
failure and close the session and is ready to reopen one when the client
ask for it.
TIA
--
German Pablo Gentile
(From Argentina)
 

"German Gentile" <XXXX@XXXXX.COM>writes
inform the other end what is happening. A phy or other network failure that
just makes the ends unreachable is more of a problem.
Nowt for it but to periodically ask the other end if it is still there.
AFAIK, there is a telnet command sequence that can be used to do this, but I
can't remember off-hand what it is. Look up the telnet protocol on google &
find out some innocuous command that just elicits a response. You can then
use readTimeouts and a local 'awaiting poll rsponse' flag to allow both
client & server to detect unreachability reasonably quickly.
Always supossing the server also detectes the
disconnect and/or unreachability. The client can just connect up & log in
to another telnet session.
Rgds,
Martin