From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on inbox.vuxu.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=5.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_NONE autolearn=ham autolearn_force=no version=3.4.2 Received: from minnie.tuhs.org (minnie.tuhs.org [45.79.103.53]) by inbox.vuxu.org (OpenSMTPD) with ESMTP id abaaad73 for ; Fri, 13 Sep 2019 05:54:50 +0000 (UTC) Received: by minnie.tuhs.org (Postfix, from userid 112) id E8C0F9B9FD; Fri, 13 Sep 2019 15:54:48 +1000 (AEST) Received: from minnie.tuhs.org (localhost [127.0.0.1]) by minnie.tuhs.org (Postfix) with ESMTP id 89C7394820; Fri, 13 Sep 2019 15:54:39 +1000 (AEST) Received: by minnie.tuhs.org (Postfix, from userid 112) id EEC2C94820; Fri, 13 Sep 2019 15:54:37 +1000 (AEST) Received: from viclamta15p.bpe.bigpond.com (viclamta15p.bpe.bigpond.com [203.38.21.79]) by minnie.tuhs.org (Postfix) with ESMTPS id 060CC947B9 for ; Fri, 13 Sep 2019 15:54:36 +1000 (AEST) Received: from smtp.telstra.com ([10.10.26.4]) by viclafep15p-svc.bpe.nexus.telstra.com.au with ESMTP id <20190913055434.RGED17602.viclafep15p-svc.bpe.nexus.telstra.com.au@smtp.telstra.com> for ; Fri, 13 Sep 2019 15:54:34 +1000 X-RG-Spam: Unknown X-RazorGate-Vade: gggruggvucftvghtrhhoucdtuddrgedufedrtdeigddutddvucetufdoteggodetrfdotffvucfrrhhofhhilhgvmecuuffpveftpgfvgffnuffvtfetpdfqfgfvnecuuegrihhlohhuthemucegtddtnecunecujfgurhepfffhvffujgfkfhgfgggtsehttddttddtredvnecuhfhrohhmpeffrghvvgcujfhorhhsfhgrlhhluceouggrvhgvsehhohhrshhfrghllhdrohhrgheqnecukfhppeduuddtrddugedurdduleefrddvfeefnecurfgrrhgrmhephhgvlhhopegrnhgvuhhrihhnrdhhohhrshhfrghllhdrohhrghdpihhnvghtpeduuddtrddugedurdduleefrddvfeefpdhmrghilhhfrhhomhepoegurghvvgeshhhorhhsfhgrlhhlrdhorhhgqedprhgtphhtthhopeeothhuhhhssehtuhhhshdrohhrgheqnecuvehluhhsthgvrhfuihiivgeptd X-RazorGate-Vade-Verdict: clean 0 X-RazorGate-Vade-Classification: clean X-RG-VS-CLASS: clean Received: from aneurin.horsfall.org (110.141.193.233) by smtp.telstra.com (5.8.335) id 5D48A28706D65437 for tuhs@tuhs.org; Fri, 13 Sep 2019 15:54:33 +1000 Received: from aneurin.horsfall.org (localhost [127.0.0.1]) by aneurin.horsfall.org (8.15.2/8.15.2) with ESMTP id x8D5sWvE024812 for ; Fri, 13 Sep 2019 15:54:32 +1000 (EST) (envelope-from dave@horsfall.org) Received: from localhost (dave@localhost) by aneurin.horsfall.org (8.15.2/8.15.2/Submit) with ESMTP id x8D5sW5t024809 for ; Fri, 13 Sep 2019 15:54:32 +1000 (EST) (envelope-from dave@horsfall.org) X-Authentication-Warning: aneurin.horsfall.org: dave owned process doing -bs Date: Fri, 13 Sep 2019 15:54:32 +1000 (EST) From: Dave Horsfall To: The Eunuchs Hysterical Society In-Reply-To: <20190913041117.GR2046@mcvoy.com> Message-ID: References: <20190911181101.GF3143@mcvoy.com> <20190912034346.GJ2046@mcvoy.com> <20190912043145.GA12480@mcvoy.com> <20190913041117.GR2046@mcvoy.com> User-Agent: Alpine 2.21.9999 (BSF 287 2018-06-16) X-GPG-Public-Key: http://www.horsfall.org/gpgkey.pub X-GPG-Fingerprint: 05B4 FFBC 0218 B438 66E0 587B EF46 7357 EF5E F58B X-Home-Page: http://www.horsfall.org/ X-Witty-Saying: "chmod 666 the_mode_of_the_beast" MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed Subject: Re: [TUHS] [SPAM] Re: SCCS X-BeenThere: tuhs@minnie.tuhs.org X-Mailman-Version: 2.1.26 Precedence: list List-Id: The Unix Heritage Society mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: tuhs-bounces@minnie.tuhs.org Sender: "TUHS" On Thu, 12 Sep 2019, Larry McVoy wrote: > But here is an SCCS win. SCCS has a 16 bit ignore the carry bit > checksum over the whole file. RCS has none of that. Giggle... I found I could actually *edit* an SCCS file, provided I reset the checksum to zero (it was then recalculated). > B) NFS errors. So all NFS implementations, Suns included, had a bad > habit of returning a block of nulls. I dunno why but that is a thing. > The SCCS checksum would detect that. RCS and CVS did not have a > checksum so when NFS returned garbage, they were happy to return that to > you. I believe that NFS is much more reliable now (yes, it used to be awful). -- Dave