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From: rpw3@redwood.UUCP (Rob Warnock)
Newsgroups: net.unix
Subject: Re: XINU by Douglas Comer.  Who distributes the source?
Message-ID: <134@redwood.UUCP>
Date: Tue, 22-Jan-85 02:58:36 EST
Article-I.D.: redwood.134
Posted: Tue Jan 22 02:58:36 1985
Date-Received: Thu, 24-Jan-85 08:12:58 EST
References: <987@phs.UUCP>
Organization: [Consultant], Foster City, CA
Lines: 26

+---------------
| The book says that source is available.  From where and how much?
+---------------

From the publisher, Prentice-Hall. You call them up, they'll tell you
the exact address, and you send them a few bucks ($50? $100?) and they'll
send you a magtape. You will have to show them a UNIX source license,
unfortunately, since the tape is just chock full of nifty PDP-11/05
cross-tools (that run on a VAX) that contain licensed UNIX source code
(mostly the compiler, libraries, and loader).

If you can find a neighbor who already has the tape, it is legal for
you to get just the XINU sources (the stuff in the book) from them.
(When I was at Fortune, one of the guys wanted to use it in a class,
and we checked with Comer about it. 'S cool.) The XINU source itself
doesn't need a UNIX license, natch. (Hmmm... that "o.k." was for personal,
research, or educational use. For commercial use, better check again
with P-H or Comer about copyright.)


Rob Warnock
Systems Architecture Consultant

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