[Bug 79360] Net::Ping succeeds regardless of port assignment

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Summary: Net::Ping succeeds regardless of port assignment


https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=79360


jvdias at redhat.com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |CLOSED
         Resolution|                            |NOTABUG
                 CC|                            |ville.skytta at iki.fi




------- Additional Comments From jvdias at redhat.com  2006-01-19 18:19 EST -------
I'm not sure this is actually a bug.

As the Net::Ping manual states:

   $p->service_check( { 0 | 1 } );
        Set whether or not the connect behavior should enforce remote service 
        availability as well as reachability.  Normally, if the remote server 
        reported ECONNREFUSED, it must have been reachable because of the 
        status packet that it reported.  With this option enabled, the full   
        three-way tcp handshake must have been established successfully before
        it will claim it is reachable.

So adding 
        $p->service_check(1);
before the 
        $p->ping($host);
in the example script attachment makes it only succeed if a tcp server
is actually listening to the $port on $host, which I believe was the 
intent, and which resolves the problem described in this bug.

Yes, I agree if a port is specified for a TCP ping, a full connect(2) attempt
should be made, but this is not how Net::Ping was designed or documented to
work - a tcp ping only verifies that the host is reachable, unless the 
service_check(1) option is specified .

Hence, this bug is being closed as NOTABUG - if you disagree, please re-open it.


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