From owner-freebsd-net@FreeBSD.ORG  Fri Jul  2 10:10:15 2004
Return-Path: <owner-freebsd-net@FreeBSD.ORG>
Delivered-To: freebsd-net@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id 1491B16A4E9
	for <freebsd-net@freebsd.org>; Fri,  2 Jul 2004 10:10:15 +0000 (GMT)
Received: from smtp-out4.iol.cz (smtp-out4.iol.cz [194.228.2.92])
	by mx1.FreeBSD.org (Postfix) with ESMTP id CBBDD43D1F
	for <freebsd-net@freebsd.org>; Fri,  2 Jul 2004 10:10:14 +0000 (GMT)
	(envelope-from bln@bln.no-ip.org)
Received: from 172.16.1.2 (168.18.broadband2.iol.cz [83.208.18.168])
	3915331145
	for <freebsd-net@freebsd.org>; Fri,  2 Jul 2004 10:10:48 +0200 (CEST)
From: Ondra Holecek <bln@bln.no-ip.org>
To: freebsd-net@freebsd.org
Date: Fri, 2 Jul 2004 11:10:56 +0200
User-Agent: KMail/1.5.4
References: <20040702090540.990.qmail@web13010.mail.yahoo.com>
In-Reply-To: <20040702090540.990.qmail@web13010.mail.yahoo.com>
MIME-Version: 1.0
Content-Type: text/plain;
  charset="iso-8859-1"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline
Message-Id: <200407021110.56087.bln@bln.no-ip.org>
Subject: Re: newbie: segmentation fault
X-BeenThere: freebsd-net@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
List-Id: Networking and TCP/IP with FreeBSD <freebsd-net.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-net>,
	<mailto:freebsd-net-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-net>
List-Post: <mailto:freebsd-net@freebsd.org>
List-Help: <mailto:freebsd-net-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-net>,
	<mailto:freebsd-net-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Fri, 02 Jul 2004 10:10:15 -0000

On Friday 02 July 2004 11:05, kamal kc wrote:
> first of all thanks for solving my previous problem.
> my previous problem was about the ip and ethernet header.
> this is how i solved it:
> --------
> char *sender,*dest;
> char *ptr;
> struct ether_header eth;
> ptr=pcap_next(..);
> sender=ether_ntoa(ether->s_host);
> printf("%s", sender);
> dest=ether_ntoa(ether->d_host);
> printf("%s",dest);
> -------------------------------------------------------------------------
> The above code did the trick.
>
> NOW i face a bizarre problem;
> when i write the following piece of code it successfully gets compiled but
> generates segmentation fault when run.
> ----
> struct sockaddr_in *sock;

what about allocating the memory?
sock = (struct sockaddr_in *)malloc(sizeof(struct sockaddr_in));


> sock->sin_family=AF_INET;
> /* rest of the code */
> ------
> And i also don't know much about the segmentation fault error message.
> By the way can i know about it in the man pages. if there are any please
> mention. Kamal
>
>
> ---------------------------------
> Do you Yahoo!?
> New and Improved Yahoo! Mail - 100MB free storage!
> _______________________________________________
> freebsd-net@freebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-net
> To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org"