Hello,
i try to write a telnet server for arduino's ethernet shield, i find some really god code on internet, but all soffer from a problem:
you don't know from which client you are reciving data, and cannot reassemble command in variable.
This little modification in the Ethernet lybrary resolve the issue.
Client.h in public
uint8_t id();
Client.cpp at the end
uint8_t Client::id () {
return _sock;
}
with this function you can understand from wich client you are reciving data, and have four different sessions from 0 to 3.
Do you think this code is good?
There are other methods for understand which client is sending data whithout the need of adding a function?
Thanks.
Alberto
It work, here
before void setup()
** int clientID; **
** Client badclient = 0;**
the new loop()
void loop()
{
** // look to see if a new connection is created,**
** // print welcome message, set connected flag**
** if (server.available() && !connectFlag) {**
** connectFlag = 1;**
** client = server.available();**
** clientID = client.id();**
** client.println("\nSteve's Arduino Telnet Server");**
** client.println("? for help");**
** printPrompt();**
** } else if (server.available()) {**
** badclient = server.available();**
** int tempid = badclient.id();**
** if ( tempid != clientID) {**
** badclient.println("\nSteve's Arduino Telnet Server");**
** badclient.println("Sorry, only one client at time allowed!");**
** badclient.stop();**
** }**
** }**
** // check to see if text received**
** if (client.connected() && client.available()) getReceivedText();**
** // check to see if connection has timed out**
** if(connectFlag) checkConnectionTimeout();**
// code to do other things in loop would go here
}
of the tenet server
http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1278686415
modified version.
After the first client connect the other clients recive the too many connections message.
Bye.
Alberto