[tpm] how to detect ICMP 'port unreachable'?

Stuart Watt stuart at morungos.com
Tue Mar 16 09:56:46 PDT 2010

Fulko Hew wrote:
> I can probably open some kind of raw ICMP protocol socket and add
> it to the select() list the app already has.  ... The devil is in the 
> details.
I haven't done raw socket stuff for years, but the following URL looks 
like it might be a start. It's in C, but all the functions are the 
standard socket ones built into Perl, so it should be straightforward to 


All the best
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