sbin/chkconfig/chkconfig.sh

   1 #!/bin/sh
   2 #
   3 #       $NetBSD: chkconfig.sh,v 1.2 2003/01/04 23:43:04 wiz Exp $
   4 #
   5 # Copyright (c) 2001 Zembu Labs, Inc.
   6 # All rights reserved.
   7 #
   8 # Author: Dan Mercer <dmercer@zembu.com>
   9 #
  10 # Redistribution and use in source and binary forms, with or without
  11 # modification, are permitted provided that the following conditions
  12 # are met:
  13 # 1. Redistributions of source code must retain the above copyright
  14 #    notice, this list of conditions and the following disclaimer.
  15 # 2. Redistributions in binary form must reproduce the above copyright
  16 #    notice, this list of conditions and the following disclaimer in the
  17 #    documentation and/or other materials provided with the distribution.
  18 # 3. All advertising materials mentioning features or use of this software
  19 #    must display the following acknowledgement:
  20 #       This product includes software developed by Zembu Labs, Inc.
  21 # 4. Neither the name of Zembu Labs nor the names of its employees may
  22 #    be used to endorse or promote products derived from this software
  23 #    without specific prior written permission.
  24 #
  25 # THIS SOFTWARE IS PROVIDED BY ZEMBU LABS, INC. ``AS IS'' AND ANY EXPRESS
  26 # OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WAR-
  27 # RANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DIS-
  28 # CLAIMED.  IN NO EVENT SHALL ZEMBU LABS BE LIABLE FOR ANY DIRECT, INDIRECT,
  29 # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  30 # NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  31 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  32 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  33 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  34 # THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  35 #
  36
  37 # chkconfig - configuration state checker
  38 #
  39 # This script is written to work with the NetBSD (1.5 and later) rc system.
  40 # It is meant to provide the same functionality as found in IRIX chkconfig.
  41 # This script has nothing to do with the abortion produced by RedHat that
  42 # has the same name.
  43 #
  44 # chkconfig makes use of the '-k' flag to rcorder. It will not work
  45 # with versions of rcorder that do not support '-k'.
  46 #
  47 # Dan Mercer <dmercer@zembu.com>
  48
  49 . /etc/rc.subr
  50
  51 display()
  52 {
  53         # output $1 with 'on' or 'off' based on the return of checkyesno()
  54         # Returns 0 for yes, 1 for no.
  55
  56         _name=$1
  57         load_rc_config ${_name}
  58         if checkyesno ${_name}; then
  59                 printf "\t%-15s\t\ton\n" ${_name}
  60                 return 0
  61         else
  62                 printf "\t%-15s\t\toff\n" ${_name}
  63                 return 1
  64         fi
  65 }
  66
  67 exists()
  68 {
  69         # Returns true if an executable named $1 exists
  70         # in /etc/rc.d/
  71
  72         _name=$1
  73         fqp="/etc/rc.d/${_name}"
  74         if [ -x "${fqp}" ]; then
  75                 return 0
  76         else
  77                 usage "${fqp} does not exist"
  78                 return 1
  79         fi
  80 }
  81
  82 is_valid()
  83 {
  84         # Returns true if $1 appears to be a valid NetBSD
  85         # rc script.
  86
  87         _name=$1
  88         fqp="/etc/rc.d/${_name}"
  89         if ! grep -s '. /etc/rc.subr' ${fqp} > /dev/null 2>&1; then
  90                 usage "${fqp} does not appear to be a NetBSD rc script"
  91                 return 1
  92         elif ! grep -s '# KEYWORD:' ${fqp} > /dev/null 2>&1; then
  93                 if [ ${force} -ne 1 ]; then
  94                         usage "${fqp} doesn't contain a KEYWORD directive. Use -f"
  95                 else
  96                         return 1
  97                 fi
  98         else
  99                 is_chkconfig=`grep -s '# KEYWORD:' ${fqp}|grep -s ${KEYWORD}`
 100                 if [ "${is_chkconfig}" ]; then
 101                         return 0
 102                 else
 103                         if [ ${force} -ne 1 ]; then
 104                                 usage "${fqp} not under chkconfig control. Use -f"
 105                         else
 106                                 return 1
 107                         fi
 108                 fi
 109         fi
 110         return 1
 111 }
 112
 113 add_keyword()
 114 {
 115         # Adds the 'chkconfig' keyword to $1 if it is not
 116         # there already, returning a 0. Otherwise exits
 117         # with an appropriate usage error.
 118
 119         _name=$1
 120         fqp="/etc/rc.d/${_name}"
 121         if is_valid ${_name}; then
 122                 usage "${fqp} is already managed by chkconfig."
 123         else
 124                 echo '# KEYWORD: chkconfig' >> ${fqp}
 125                 return 0
 126         fi
 127 }
 128
 129 usage()
 130 {
 131         # Print a (hopefully) useful usage message and exit nonzero.
 132         # We don't make use of err() from rc.subr because we
 133         # don't want error messages going to syslog.
 134
 135         _err=$1
 136         echo "Error: ${_err}"
 137         echo "usage: $0 flag"
 138         echo "       $0 flag [ on | off ] "
 139         echo "       $0 [-f] flag [ on | off ]"
 140         exit 1
 141 }
 142
 143 on()
 144 {
 145         _name=$1
 146         if [ ${force} -eq 1 ]; then
 147                 add_keyword ${_name}
 148         fi
 149
 150         if is_valid ${_name}; then
 151                 output="/etc/rc.conf.d/${_name}"
 152                 echo "${_name}=YES" > "${output}"
 153         fi
 154         return 0
 155 }
 156
 157 off()
 158 {
 159         _name=$1
 160         if [ ${force} -eq 1 ]; then
 161                 add_keyword ${_name}
 162         fi
 163
 164         if is_valid ${_name}; then
 165                 output="/etc/rc.conf.d/${_name}"
 166                 echo "${_name}=NO" > "${output}"
 167         fi
 168         return 0
 169 }
 170
 171 KEYWORD='chkconfig'
 172 action='show'
 173 force=0
 174
 175 for i
 176 do
 177         case $1 in
 178         -f)
 179                 force=1
 180                 ;;
 181         on)
 182                 action='on'
 183                 break
 184                 ;;
 185         off)
 186                 action='off'
 187                 break
 188                 ;;
 189         -*)
 190                 usage "Invalid argument ${i}"
 191                 exit 1
 192                 ;;
 193         *)
 194                 rcfile=${i}
 195                 ;;
 196         esac
 197         shift
 198 done
 199
 200 case ${action} in
 201         show)
 202                 if [ ${force} -eq 1 ]; then
 203                         usage "-f flag requires 'on' or 'off'"
 204                 fi
 205                 if [ ! ${rcfile} ]; then
 206                         printf "\tService\t\t\tState\n"
 207                         printf "\t=======\t\t\t=====\n"
 208                         for i in `(cd /etc/rc.d; rcorder -k ${KEYWORD} *)`; do
 209                                 display ${i}
 210                         done
 211                 else
 212                         if exists ${rcfile} && is_valid ${rcfile}; then
 213                                 display ${rcfile}
 214                                 exit $?
 215                         else
 216                                 usage "Invalid rcfile: ${rcfile}"
 217                         fi
 218                 fi
 219                 exit 0
 220                 ;;
 221         on)
 222                 if exists ${rcfile}; then
 223                         on ${rcfile}
 224                 fi
 225                 ;;
 226         off)
 227                 if exists ${rcfile}; then
 228                         off ${rcfile}
 229                 fi
 230                 ;;
 231 esac