On Mon, 22 Jul 2002, Kondwani Spike Mkandawire wrote:
> I am trying to execute a Script running a telnet command
> testing through a range of IP connections...
> Here goes:
> <?
>     $str = "123.456.789.";
>     $count = 0;
>     while ($count < 999){
>         $runTheScriptCommand...
>     }
> ?>
> What I want to stick into the while loop is if connection
> was successful, break...  Is there a way I can check whether
> telnet connection was successful on each step through the
> loop or do I have to restructure my program and try
> connecting to a port via fsockopen...  By the way
> does anyone know what port number telnet connects to...

Telnet is port 23, and the protocol is more complicated than you might 
think. Perhaps you could look into using 'expect' (a unix utility) to 
control your telnet session. That might bring you less heartache in the 
long run.


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