From owner-cvs-bin  Sun Jun  1 23:27:11 1997
Return-Path: <owner-cvs-bin>
Received: (from root@localhost)
          by hub.freebsd.org (8.8.5/8.8.5) id XAA00358
          for cvs-bin-outgoing; Sun, 1 Jun 1997 23:27:11 -0700 (PDT)
Received: from freefall.freebsd.org (freefall.cdrom.com [204.216.27.21])
          by hub.freebsd.org (8.8.5/8.8.5) with ESMTP id XAA00264;
          Sun, 1 Jun 1997 23:25:30 -0700 (PDT)
From: Julian Elischer <julian@FreeBSD.ORG>
Received: (from julian@localhost)
	by freefall.freebsd.org (8.8.5/8.8.5) id XAA07545;
	Sun, 1 Jun 1997 23:24:55 -0700 (PDT)
Date: Sun, 1 Jun 1997 23:24:55 -0700 (PDT)
Message-Id: <199706020624.XAA07545@freefall.freebsd.org>
To: cvs-committers@FreeBSD.ORG, cvs-all@FreeBSD.ORG, cvs-bin@FreeBSD.ORG,
        cvs-lib@FreeBSD.ORG, cvs-sys@FreeBSD.ORG, cvs-usrbin@FreeBSD.ORG
Subject: cvs commit: src/bin/ls stat_flags.c src/lib/libc/sys chflags.2
         src/sys/sys stat.h src/sys/ufs/ufs ufs_vnops.c src/usr.bin/chflags
         chflags.1
Sender: owner-cvs-bin@FreeBSD.ORG
X-Loop: FreeBSD.org
Precedence: bulk

julian      1997/06/01 23:24:53 PDT

  Modified files:
    bin/ls               stat_flags.c 
    lib/libc/sys         chflags.2 
    sys/sys              stat.h 
    sys/ufs/ufs          ufs_vnops.c 
    usr.bin/chflags      chflags.1 
  Log:
  Submitted by:	Whistle Communications (archie Cobbs)
  
  These changes add the ability to specify that a UFS file/directory
  cannot be unlinked. This is basically a scaled back version
  of the IMMUTABLE flag. The reason is to allow an administrator
  to create a directory hierarchy that a group of users
  can arbitrarily add/delete files from, but that the hierarchy
  itself is safe from removal by them.
  If the NOUNLINK definition is set to 0
  then this results in no change to what happens normally.
  (and results in identical binary (in the kernel)).
  It can be proven that if this bit is never set by the admin,
  no new behaviour is introduced..
  Several "good idea" comments from reviewers plus one grumble
  about creeping featurism.
  
  This code is in production in 2.2 based systems
  
  Revision  Changes    Path
  1.6       +9 -1      src/bin/ls/stat_flags.c
  1.7       +10 -2     src/lib/libc/sys/chflags.2
  1.13      +4 -1      src/sys/sys/stat.h
  1.51      +11 -7     src/sys/ufs/ufs/ufs_vnops.c
  1.5       +4 -1      src/usr.bin/chflags/chflags.1