usr/src/cmd/acct/ckpacct.sh

   1 #!/sbin/sh
   2 #
   3 # CDDL HEADER START
   4 #
   5 # The contents of this file are subject to the terms of the
   6 # Common Development and Distribution License, Version 1.0 only
   7 # (the "License").  You may not use this file except in compliance
   8 # with the License.
   9 #
  10 # You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  11 # or http://www.opensolaris.org/os/licensing.
  12 # See the License for the specific language governing permissions
  13 # and limitations under the License.
  14 #
  15 # When distributing Covered Code, include this CDDL HEADER in each
  16 # file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  17 # If applicable, add the following below this CDDL HEADER, with the
  18 # fields enclosed by brackets "[]" replaced with your own identifying
  19 # information: Portions Copyright [yyyy] [name of copyright owner]
  20 #
  21 # CDDL HEADER END
  22 #
  23 #       Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T
  24 #         All Rights Reserved
  25
  26 #
  27 # Copyright 1997 Sun Microsystems, Inc.  All rights reserved.
  28 # Use is subject to license terms.
  29 #
  30
  31 #ident  "%Z%%M% %I%     %E% SMI"        /* SVr4.0 1.9   */
  32 #       periodically check the size of /var/adm/pacct
  33 #       if over $1 blocks (default: maxi 200, mini 500), execute
  34 #       turnacct switch
  35
  36 _adm=/var/adm
  37 PATH=/usr/lib/acct:/usr/bin:/usr/sbin
  38 trap "rm -f /var/adm/cklock*; exit 0" 0 1 2 3 9 15
  39 export PATH
  40
  41 if [ -f uts -a uts ]
  42 then
  43         _max=${1-200}
  44 else
  45         _max=${1-500}
  46 fi
  47 _MIN_BLKS=500
  48 cd /var/adm
  49
  50 #       set up lock files to prevent simultaneous checking
  51
  52 cp /dev/null cklock
  53 chmod 400 cklock
  54 ln cklock cklock1
  55 if test $? -ne 0 ; then exit 1; fi
  56
  57 #       If there are less than $_MIN_BLKS free blocks left on the /var/adm
  58 #       file system, turn off the accounting (unless things improve
  59 #       the accounting wouldn't run anyway).  If something has
  60 #       returned the file system space, restart accounting.  This
  61 #       feature relies on the fact that ckpacct is kicked off by the
  62 #       cron at least once per hour.
  63
  64
  65 _blocks=`df $_adm | sed 's/.*://' | awk '{ print $1 }'`
  66
  67 if [ "$_blocks" -lt $_MIN_BLKS   -a  -f /tmp/acctoff ];then
  68         echo "ckpacct: $_adm still low on space ($_blocks blks); \c"
  69         echo "acctg still off"
  70         ( echo "ckpacct: $_adm still low on space ($_blocks blks); \c"
  71         echo "acctg still off" ) | mailx root adm
  72         exit 1
  73 elif [ "$_blocks" -lt $_MIN_BLKS ];then
  74         echo "ckpacct: $_adm too low on space ($_blocks blks); \c"
  75         echo "turning acctg off"
  76         ( echo "ckpacct: $_adm too low on space ($_blocks blks); \c"
  77         echo "turning acctg off" ) | mailx root adm
  78         nulladm /tmp/acctoff
  79         turnacct off
  80         exit 1
  81 elif [ -f /tmp/acctoff ];then
  82         echo "ckpacct: $_adm free space restored; turning acctg on"
  83         echo "ckpacct: $_adm free space restored; turning acctg on" | \
  84                 mailx root adm
  85         rm /tmp/acctoff
  86         turnacct on
  87 fi
  88
  89 _cursize="`du -s pacct | sed 's/        .*//'`"
  90 if [ "${_max}" -lt "${_cursize}" ]; then
  91         turnacct switch
  92 fi