From owner-freebsd-hackers@freebsd.org  Mon Dec  4 00:43:28 2017
Return-Path: <owner-freebsd-hackers@freebsd.org>
Delivered-To: freebsd-hackers@mailman.ysv.freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 by mailman.ysv.freebsd.org (Postfix) with ESMTP id 29375E6E65D
 for <freebsd-hackers@mailman.ysv.freebsd.org>;
 Mon,  4 Dec 2017 00:43:28 +0000 (UTC)
 (envelope-from khanzf@gmail.com)
Received: from mail-yb0-x22c.google.com (mail-yb0-x22c.google.com
 [IPv6:2607:f8b0:4002:c09::22c])
 (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits))
 (Client CN "smtp.gmail.com",
 Issuer "Google Internet Authority G2" (verified OK))
 by mx1.freebsd.org (Postfix) with ESMTPS id DC63370E9F
 for <freebsd-hackers@freebsd.org>; Mon,  4 Dec 2017 00:43:27 +0000 (UTC)
 (envelope-from khanzf@gmail.com)
Received: by mail-yb0-x22c.google.com with SMTP id b73so2526692yba.6
 for <freebsd-hackers@freebsd.org>; Sun, 03 Dec 2017 16:43:27 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025;
 h=mime-version:from:date:message-id:subject:to;
 bh=R6eNZ0TJzy0/BnpWkXEBnYbGk+GyTY5BBshcGIQxnJU=;
 b=RyPvs29bg25Fex8tmiEiGfRGKf/09IUeNM9T1jlx4kaBU/11wnbb/4HZr2aD32Fikx
 qXvd0EE+ZIrobLT2kR08SJLpKqXT7kg31K8KDq9LTaw8gbiNt6rr8oXeZDFz68u5CWXI
 cPRqJAMiqlDlRo4HDquOa+TXDqF2b82UmF04TYft57GjXx9k99LaDLSbNWq40xXMRONc
 M4/C62hczhEhVrOPZt64CohQms9o36ttRXVFK++MUeVok6Gl8zpdf7T7yK0AMvx1j4T3
 TNWkU1pK6SoNHWA87C1+okG2yxhYdBfGwcT5PdvAYy+Pl1UGonHy/DjpHJAc+DPrtcue
 dYhg==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
 d=1e100.net; s=20161025;
 h=x-gm-message-state:mime-version:from:date:message-id:subject:to;
 bh=R6eNZ0TJzy0/BnpWkXEBnYbGk+GyTY5BBshcGIQxnJU=;
 b=T0xFGAClMpWSbSt5fqnbN1mXR708HvBwngkJ/ahEvseoHFOcdTMCtExxrI8GRRKDgy
 ANJNFAo9sGiPSwgTCM2DunfuDWCBD6ZaFnBiAsEvuMvnoUvwZB4KObqtD8KpVtRXdWpV
 ggSKzXacbxPSJ7g4ADEpQkuGxedzFXsONK24P1TpCRXboUHoMftZKORJLgod+pakPO3h
 SI1ehSc4Mk1w9WhfXBItCdfDRQDHR92bMBpcewSbRpA6eJd4H0qJbK/RD7fm4UNg9hDr
 7lwc7LBkbm5e7WTpByNPhhqiYN9uhgCOVuPy46s2JVfY7kFVHEV2azeoNP78QcwXr0ju
 d9JQ==
X-Gm-Message-State: AJaThX6+NWEUug2T/LXEqnwgsNNmDIy11A1qn+7IFZO4rlflZd6tcFL+
 cD6RPg2e5vMMHv+WpaUwmhw31HZ+yBd9IP5m2mnOig==
X-Google-Smtp-Source: AGs4zMbclVk1xIO1VFsHJl5D72eQYL1KmaKAoAYobWQuFiKnnhjHAdbE5mQc363fErN8e/oehy0wXtaJksn5cDABLb0=
X-Received: by 10.37.20.193 with SMTP id 184mr8121127ybu.400.1512348206823;
 Sun, 03 Dec 2017 16:43:26 -0800 (PST)
MIME-Version: 1.0
Received: by 10.37.186.147 with HTTP; Sun, 3 Dec 2017 16:43:06 -0800 (PST)
From: Farhan Khan <khanzf@gmail.com>
Date: Sun, 3 Dec 2017 19:43:06 -0500
Message-ID: <CAFd4kYB-gZFJHJbpnZ1kLXgQuuWvtOY-XEJMK6eXiifENobdnA@mail.gmail.com>
Subject: where ifconfig's socket binds to the interface?
To: freebsd-hackers@freebsd.org
Content-Type: text/plain; charset="UTF-8"
X-Content-Filtered-By: Mailman/MimeDel 2.1.25
X-BeenThere: freebsd-hackers@freebsd.org
X-Mailman-Version: 2.1.25
Precedence: list
List-Id: Technical Discussions relating to FreeBSD
 <freebsd-hackers.freebsd.org>
List-Unsubscribe: <https://lists.freebsd.org/mailman/options/freebsd-hackers>, 
 <mailto:freebsd-hackers-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-hackers/>
List-Post: <mailto:freebsd-hackers@freebsd.org>
List-Help: <mailto:freebsd-hackers-request@freebsd.org?subject=help>
List-Subscribe: <https://lists.freebsd.org/mailman/listinfo/freebsd-hackers>, 
 <mailto:freebsd-hackers-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Mon, 04 Dec 2017 00:43:28 -0000

Hi all,

Does anyone know where in ifconfig(8)'s source it opens a socket and
connects that to the specified interface? I see the socket(2) call in
/usr/src/sbin/ifconfig/ifconfig.c. The while-loop at 767 seems to iterate
through each command. But I can't seem to locate where it connects that
socket(2) to the provided interface.

Any ideas?
Thanks!

--
Farhan Khan
PGP Fingerprint: B28D 2726 E2BC A97E 3854 5ABE 9A9F 00BC D525 16EE