Associating Local Port Number to PID

[Pete Wenzel]

"Karl A. Siil" <karl at cosmos.cosmos.att.com> writes:

> I'm working on a program for UNIX (SVR4, Solaris 2.4) systems that needs to
> associate PID with local TCP/IP port number, so as to pass session keys
> accordingly to already running processes. This sounds like such an obviously
> needed association that someone must have done it already.

Take a look at how implementations of identd (RFC 1413) do it.  This daemon
associates a TCP port with its UID, but I'm sure the PID is very close by
in the netstat data structures.  It might actually find the PID first, then
look up its owner's UID.

Anyway, look at the pidentd stuff at ftp://ftp.lysator.liu.se/pub/ident/.

--Pete
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