'lsof' works I think by using the /proc filesystem if available, or by examining kernel memory directly otherwise (the utility is sgid 'kmem').

If you have a /proc filesystem maybe a perl-only solution is possible, but otherwise you'll really want to invoke lsof. It has a special -F option to produce output designed to be easily parsable by awk/perl scripts.

I hope this helps you get started

In reply to Re: Relating AF_INET sockets to processes using Perl by xmath
in thread Relating AF_INET sockets to processes using Perl by SIGSEGV

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