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Date:      Wed, 19 Jun 2002 11:02:33 +0300
From:      Peter Pentchev <roam@ringlet.net>
To:        Varshavchick Alexander <alex@metrocom.ru>
Cc:        hackers@FreeBSD.org
Subject:   Re: Getting pid of listening process
Message-ID:  <20020619080233.GC369@straylight.oblivion.bg>
In-Reply-To: <20020619080119.GB369@straylight.oblivion.bg>
References:  <Pine.GSO.4.21.0206191148420.7233-100000@apache.metrocom.ru> <20020619080119.GB369@straylight.oblivion.bg>

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On Wed, Jun 19, 2002 at 11:01:19AM +0300, Peter Pentchev wrote:
> On Wed, Jun 19, 2002 at 11:48:56AM +0400, Varshavchick Alexander wrote:
> > Hi gurus,
> >=20
> > can anybody make a hint as how pid of a process listening on a specified
> > tcp port can be determined? Of cause there are major utilities like lsof
> > or sockstat but they gather a lot of extra information and work not too
> > fast. What I need ideally would be a small C program which outputs pid
> > given a port number as a parameter, can anybody help?
>=20
> Very few things could work faster than lsof(1) with appropriate
> command-line options.  I would suggest that you take the time to read
> the lsof manual page carefully, then try something like:
>=20
> lsof -nPli 4tcp:25
>=20
> Of course, depending on your needs, you may want to drop the -P, -l or
> -n options.

Hit 'send' too fast; if you are only interested in pid's, take a look at
the -t option, too :)

G'luck,
Peter

--=20
Peter Pentchev	roam@ringlet.net	roam@FreeBSD.org
PGP key:	http://people.FreeBSD.org/~roam/roam.key.asc
Key fingerprint	FDBA FD79 C26F 3C51 C95E  DF9E ED18 B68D 1619 4553
If there were no counterfactuals, this sentence would not have been paradox=
ical.

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