From owner-freebsd-hackers@FreeBSD.ORG  Thu Mar  9 16:43:32 2006
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Date: Thu, 9 Mar 2006 10:43:29 -0600
From: Dan Nelson <dnelson@allantgroup.com>
To: othermark <atkin901@yahoo.com>
Message-ID: <20060309164329.GD24511@dan.emsphone.com>
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Cc: freebsd-hackers@freebsd.org
Subject: Re: Advice on the lightweight resolver, lwres.
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In the last episode (Mar 09), othermark said:
> I was working on converting the STAF (staf.sourceforge.net) project
> to an freebsd port, and on my first attempt, I attempted to use the
> lightweight resolver library because of the thread safe functions
> _r() that were available.
> 
> However once I finished a straight port, I found, that
> lwres_gethostbyname() always returns 61 (connection refused). 
> Nothing ever shows up on tcpdump on any interface (yes, even lo0). 
> Of course, just changing the netdb include and compiling without
> lwres works.
> 
> example of slightly modified code from the staf project:

Are you running lwresd (the lwres lookup daemon)?  Try trussing your
program:

socket(PF_INET,SOCK_DGRAM,17)                    = 3 (0x3)
connect(3,{ AF_INET 127.0.0.1:921 },16)          = 0 (0x0)

According to the lwres manpage, lwresd needs to be running, and I'm
guessing it would listen on UDP port 921.

-- 
	Dan Nelson
	dnelson@allantgroup.com