From mboxrd@z Thu Jan 1 00:00:00 1970 From: lm@mcvoy.com (Larry McVoy) Date: Mon, 6 Mar 2017 15:48:46 -0800 Subject: [TUHS] Source code abundance? In-Reply-To: <97090944dff12bae96d89cf2e976cfec90d4630b@webmail.yaccman.com> References: <58BDF199.4070302@gewt.net> <97090944dff12bae96d89cf2e976cfec90d4630b@webmail.yaccman.com> Message-ID: <20170306234846.GX16343@mcvoy.com> I'll bet anything this was Coherent, I remember the same story, I think Dennis was involved as well. On Mon, Mar 06, 2017 at 03:44:32PM -0800, Steve Johnson wrote: > I don't remember.???? In fact, I'm not sure I ever knew... > > Steve > > ----- Original Message ----- > From: "Cory Smelosky" > To: > Cc:"TUHS main list" > Sent:Mon, 06 Mar 2017 15:32:41 -0800 > Subject:Re: [TUHS] Source code abundance? > > Steve Johnson wrote: > > I can attest to at least one case where AT&T attempted to see > whether > > its Unix code had been stolen. A Unix look-alike came to AT&T's > > attention, and they wanted to get a sense of whether the code had > been > > copied before bringing out the big legal guns. I was one of several > > people asked to log into the system and see what I could figure > out. > > They particularly wanted me to look at their Yacc, because they > assumed > > that would be hard to duplicate. > > > > So I spent an interesting hour checking it out. The first thing I > did > > was to look to see whether some of my bugs or unadvertised features > were > > in the program, and they weren't. Then I threw a couple of > difficult > > cases at it, and found a couple of bugs in their code. And besides, > it > > was VERY slow. So I concluded it was a reimplementation. I gather > > that was the consensus of others as well, and AT&T backed off. > > > > Steve > > > > > > Coherent? > -- --- Larry McVoy lm at mcvoy.com http://www.mcvoy.com/lm