Hi, talking about setting the record straight...
System Administrator wrote on Sat, Oct 04, 2014 at 11:57:56PM -0400: > 2. Open*BSD* as the name implies, had no "decades old" Unix code and > by now has had much of the _original_ BSD code replaced as well. The ancestors of OpenBSD are, in direct line only: * Version 1 AT&T UNIX (Nov. 1971) * Version 2 AT&T UNIX (June 1972) based on v1 * Version 3 AT&T UNIX (Feb. 1973) based on v2 * Version 4 AT&T UNIX (Nov. 1973) based on v3 * Version 5 AT&T UNIX (June 1974) based on v4 * Version 6 AT&T UNIX (May 1975) based on v5 * PWB/UNIX 1.0 (July 1977) based on v6 * 1BSD (Mar. 1978) based on v6 * Version 7 AT&T UNIX (Jan. 1979) based on v6 and PWB * 2BSD (May 1979) based on v6 * Version 32v AT&T UNIX (May 1979) based on v7 * 3BSD (Feb. 1980) based on 32v and 2BSD * 4.0BSD (Nov. 1980) based on 3BSD * 4.1BSD (June 1981) based on 4.0BSD * 4.1aBSD (May 1982) based on 4.1BSD * 4.1cBSD (Dec. 1982) based on 4.1aBSD * 4.2BSD (Sep. 1983) based on 4.1cBSD * 4.3BSD (July 1986) based on 4.2BSD * 4.3BSD-Tahoe (June 1988) based on 4.3BSD * BSD Net/1 (Mar. 1989) based on 4.3BSD-Tahoe * 4.3BSD-Reno (June 1990) based on Tahoe and Net/1 * BSD Net/2 (Aug. 1991) based on 4.3BSD-Reno * 386BSD 0.0 (Mar. 1992) based on Net/2 * 386BSD 0.1 (July 1992) based on 386BSD 0.0 * NetBSD 0.8 (Apr. 1993) based on 386BSD 0.1 * 4.4BSD (June 1993) based on Reno and Net/2 * NetBSD 0.9 (Aug. 1993) based on NetBSD 0.8 * 4.4BSD-Lite1 (Apr. 1994) based on 4.4BSD * NetBSD 1.0 (Oct. 1994) based on NetBSD 0.9 and 4.4BSD-Lite1 * 4.4BSD-Lite2 (June 1995) based on 4.4BSD-Lite1 * OpenBSD 1.2 (July 1996) based on NetBSD 1.0 * OpenBSD 2.0 (Oct. 1996) based on OpenBSD 1.2 and 4.4BSD-Lite2 It is true that much of the original BSD code has been replaced. But looking closely, you will still find decades old code from almost all BSD releases. Compare, for example, http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.bin/expand/expand.c?annotate=HEAD to http://minnie.tuhs.org/cgi-bin/utree.pl?file=1BSD/s6/expand.c in particular the main loop. Yes, much of the code has been amended, but some parts remain unchanged since more than 36 years ago. According to the Berne Convention, that file still contains text covered by Bill Joy's Copyright, even though - following U.S. Copyright law - the Copyright Notice only mentions The Regents. That is just one of no doubt many examples. It is even possible that OpenBSD still contains traces of decades old AT&T UNIX code. Good candidates for looking are the following 23 files, see http://www.groklaw.net/article.php?story=20041126130302760 : sys/kern/init_main.c sys/kern/kern_clock.c sys/kern/kern_exec.c sys/kern/kern_exit.c sys/kern/kern_physio.c sys/kern/kern_sig.c sys/kern/kern_synch.c sys/kern/subr_rmap.c sys/kern/sys_generic.c sys/kern/sys_process.c sys/kern/tty.c sys/kern/tty_subr.c sys/kern/vfs_bio.c sys/kern/vfs_syscalls.c sys/sys/buf.h sys/sys/proc.h sys/sys/tty.h sys/ufs/dinode.h sys/ufs/inode.h sys/ufs/ufs_bmap.c sys/ufs/ufs_disksubr.c sys/ufs/ufs_inode.c sys/ufs/ufs_vnops.cl I checked init_main.c, and it still says: * (c) UNIX System Laboratories, Inc. * All or some portions of this file are derived from material licensed * to the University of California by American Telephone and Telegraph * Co. or Unix System Laboratories, Inc. and are reproduced herein with * the permission of UNIX System Laboratories, Inc. I'm too lazy now to check whether any of that code *actually* still remains or if it has *incidentally* all been replaced since. In any case, i'm not aware that there ever was any *intentional* effort to replace AT&T UNIX code in these files. So your claim that none remains seems somewhat bold to me. Then again, if any remains, it is certainly not a large amount. History is fun (litigation not so much). Yours, Ingo
