From owner-freebsd-questions  Tue Feb  6  3:30:56 2001
Delivered-To: freebsd-questions@freebsd.org
Received: from what.ifelse.org (what.ifelse.org [208.171.40.202])
	by hub.freebsd.org (Postfix) with ESMTP id EBBFE37B401
	for <freebsd-questions@freebsd.org>; Tue,  6 Feb 2001 03:30:38 -0800 (PST)
Received: from 2416419hfc44.tampabay.rr.com (2416419hfc44.tampabay.rr.com [24.164.19.44])
	by what.ifelse.org (8.9.3/8.9.3/Debian 8.9.3-21) with ESMTP id GAA25164
	for <freebsd-questions@freebsd.org>; Tue, 6 Feb 2001 06:17:49 -0500
Date: Tue, 6 Feb 2001 06:32:14 -0500 (EST)
From: bill <billt@what.ifelse.org>
X-X-Sender:  <billt@zaius.poa>
To: <freebsd-questions@freebsd.org>
Subject: getsockname + getnameinfo = garbage
Message-ID: <Pine.BSF.4.31.0102060603370.29920-100000@zaius.poa>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=X-UNKNOWN
Content-Transfer-Encoding: QUOTED-PRINTABLE
Sender: owner-freebsd-questions@FreeBSD.ORG
Precedence: bulk
X-Loop: FreeBSD.ORG

Hello,

I'm using xawtv-3.30 on freebsd and it uses this function to get the name
of the server and the client:

    /* me */
    length =3D sizeof(ss);
    if (-1 =3D=3D getsockname(fd,(struct sockaddr*)&ss,&length)) {
        perror("getsockname");
        return;
    }
    if (debug)
        fprintf(stderr,"*");

    getnameinfo((struct sockaddr*)&ss,length,
                me,INET6_ADDRSTRLEN,port,16,
                NI_NUMERICHOST | NI_NUMERICSERV);
    if (debug)
        fprintf(stderr,"*");

for variables 'me' and 'peer'. it then compares 'me' and 'peer' to check
if the X server is local. This check always fails because it seems that
these functions return this garbage:

This is xawtv-3.30, running on FreeBSD/i386 (4.2-STABLE)
[...]
check if the X-Server is local ... **** ok
x11 socket: me=3D8=90=04=08(S=08=01, server=3D=9A`=07(=9F=A1=04=08=A8=C3,(

I get xawtv to work by ensuring that the results of this check don't
matter. In the man page for getsockname(2), the BUGS section mentions:

     Names bound to sockets in the UNIX domain are inaccessible;
     getsockname returns a zero length name.

Being a C beginner, I am curious if this is what could be causing the
garbage, and if so is there a  way to work around it? I have seen
this happen on another, completely different freebsd box, but it doesn't
happen on Linux.

Thanks for any info,
Bill



To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-questions" in the body of the message