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From: lwall@jpl-devvax.JPL.NASA.GOV (Larry Wall)
Newsgroups: comp.lang.perl
Subject: Re: Help with sockets and lpd
Message-ID: <8334@jpl-devvax.JPL.NASA.GOV>
Date: 8 Jun 90 18:40:31 GMT
References: <1990Jun7.225250.29252@uvaarpa.Virginia.EDU>
Reply-To: lwall@jpl-devvax.JPL.NASA.GOV (Larry Wall)
Organization: Jet Propulsion Laboratory, Pasadena, CA
Lines: 19

In article <1990Jun7.225250.29252@uvaarpa.Virginia.EDU> cdp@hertz.njit.edu writes:
: 
: I am attempting to connect to the printer daemon which is on tcp port 
: 515 using sockets.  The system we are running is Ultrix-32 V3.1 (Rev. 9) 
: System #7.  The problem is the same even when I vary the $them
: variable below. 
: 
: The message that comes back to me is: 'Malformed from address'
: If I use the same structure to address the ftp port or telnet 
: port, I get the header info of that process back.  The lpd should
: respond with a 0 or something telling me ok (or is that my 
: misunderstanding :-) ).  

My guess (without access to the lpd source) is that lpd is requiring the
port to be a privileged port, since lpq is setuid root.  Running your
script as root, it just sits there forever rather than returning the
error, so I think that's what's going on.

Larry